* [PATCH 00/11] Fuzzing and ASAN for sandbox
@ 2022-04-14 13:59 Andrew Scull
2022-04-14 13:59 ` [PATCH v2 01/12] sandbox: Fix EFI runtime symbol placement Andrew Scull
` (11 more replies)
0 siblings, 12 replies; 21+ messages in thread
From: Andrew Scull @ 2022-04-14 13:59 UTC (permalink / raw)
To: u-boot; +Cc: sjg, xypron.glpk, Andrew Scull
This series sets up a basic fuzzing infrastructure that works with
sandbox. The example fuzz test towards the end of the series will find
something pretty quickly. That something is fixed by the series
"virtio: Harden and test vring" that needs to be applied for the final
patch in this series.
There is some refactoring to stop using '.' prefixed sections that elf
defines as being for system use and clang's ASAN instrumentation happily
adds redzones between, but that's not what we want for things like
linker lists where the linker script has carefully placed the sections
contiguously.
It may require patches from the "Fix misc ASAN reports" series to be
applied as I've already dealt with the first set of ASAN reports from
running the tests.
From v1:
- corrected handling of EFI symbols by sandbox linker script
- per comments, some renaming and explaining
- dropped RFC for dlmalloc ASAN instrumentation (work required to improve it)
- added patch to reduce logging noise in fuzzer
Andrew Scull (12):
sandbox: Fix EFI runtime symbol placement
sandbox: Rename EFI runtime sections
sandbox: Migrate getopt section to linker list
linker_lists: Rename sections to remove . prefix
sandbox: Add support for Address Sanitizer
fuzzing_engine: Add fuzzing engine uclass
test: fuzz: Add framework for fuzzing
sandbox: Decouple program entry from sandbox init
sandbox: Add libfuzzer integration
sandbox: Implement fuzzing engine driver
fuzz: virtio: Add fuzzer for vring
virtio_ring: Reduce logging noise
Kconfig | 16 +++
arch/Kconfig | 2 +
arch/arc/cpu/u-boot.lds | 4 +-
arch/arm/config.mk | 4 +-
arch/arm/cpu/arm926ejs/sunxi/u-boot-spl.lds | 4 +-
arch/arm/cpu/armv7/sunxi/u-boot-spl.lds | 4 +-
arch/arm/cpu/armv8/u-boot-spl.lds | 4 +-
arch/arm/cpu/armv8/u-boot.lds | 4 +-
arch/arm/cpu/u-boot-spl.lds | 4 +-
arch/arm/cpu/u-boot.lds | 6 +-
arch/arm/mach-at91/arm926ejs/u-boot-spl.lds | 2 +-
arch/arm/mach-at91/armv7/u-boot-spl.lds | 2 +-
arch/arm/mach-omap2/u-boot-spl.lds | 4 +-
arch/arm/mach-orion5x/u-boot-spl.lds | 4 +-
arch/arm/mach-rockchip/u-boot-tpl-v8.lds | 4 +-
arch/arm/mach-zynq/u-boot-spl.lds | 4 +-
arch/arm/mach-zynq/u-boot.lds | 4 +-
arch/m68k/cpu/u-boot.lds | 4 +-
arch/microblaze/cpu/u-boot-spl.lds | 4 +-
arch/microblaze/cpu/u-boot.lds | 4 +-
arch/mips/config.mk | 2 +-
arch/mips/cpu/u-boot-spl.lds | 4 +-
arch/mips/cpu/u-boot.lds | 4 +-
arch/nds32/cpu/n1213/u-boot.lds | 4 +-
arch/nios2/cpu/u-boot.lds | 4 +-
arch/powerpc/cpu/mpc83xx/u-boot.lds | 4 +-
arch/powerpc/cpu/mpc85xx/u-boot-nand.lds | 4 +-
arch/powerpc/cpu/mpc85xx/u-boot-nand_spl.lds | 4 +-
arch/powerpc/cpu/mpc85xx/u-boot-spl.lds | 4 +-
arch/powerpc/cpu/mpc85xx/u-boot.lds | 4 +-
arch/riscv/cpu/u-boot-spl.lds | 4 +-
arch/riscv/cpu/u-boot.lds | 4 +-
arch/sandbox/config.mk | 15 ++-
arch/sandbox/cpu/os.c | 97 ++++++++++++++++---
arch/sandbox/cpu/start.c | 12 +--
arch/sandbox/cpu/u-boot-spl.lds | 10 +-
arch/sandbox/cpu/u-boot.lds | 41 ++++----
arch/sandbox/dts/test.dts | 4 +
arch/sandbox/include/asm/fuzzing_engine.h | 25 +++++
arch/sandbox/include/asm/getopt.h | 19 ++--
arch/sandbox/include/asm/main.h | 18 ++++
arch/sandbox/include/asm/sections.h | 25 -----
arch/sandbox/lib/sections.c | 8 +-
arch/sh/cpu/u-boot.lds | 4 +-
arch/x86/cpu/u-boot-64.lds | 6 +-
arch/x86/cpu/u-boot-spl.lds | 6 +-
arch/x86/cpu/u-boot.lds | 6 +-
arch/x86/lib/elf_ia32_efi.lds | 4 +-
arch/x86/lib/elf_x86_64_efi.lds | 4 +-
arch/xtensa/cpu/u-boot.lds | 2 +-
arch/xtensa/include/asm/ldscript.h | 4 +-
board/compulab/cm_t335/u-boot.lds | 4 +-
board/cssi/MCR3000/u-boot.lds | 4 +-
.../davinci/da8xxevm/u-boot-spl-da850evm.lds | 2 +-
board/qualcomm/dragonboard820c/u-boot.lds | 4 +-
board/samsung/common/exynos-uboot-spl.lds | 4 +-
board/synopsys/iot_devkit/u-boot.lds | 4 +-
board/ti/am335x/u-boot.lds | 4 +-
board/vscom/baltos/u-boot.lds | 4 +-
configs/sandbox_defconfig | 1 +
doc/api/linker_lists.rst | 22 ++---
doc/develop/commands.rst | 4 +-
doc/develop/driver-model/of-plat.rst | 4 +-
drivers/Kconfig | 2 +
drivers/Makefile | 1 +
drivers/fuzz/Kconfig | 17 ++++
drivers/fuzz/Makefile | 8 ++
drivers/fuzz/fuzzing_engine-uclass.c | 28 ++++++
drivers/fuzz/sandbox_fuzzing_engine.c | 35 +++++++
drivers/virtio/virtio_ring.c | 4 +-
include/dm/uclass-id.h | 1 +
include/fuzzing_engine.h | 51 ++++++++++
include/linker_lists.h | 18 ++--
include/test/fuzz.h | 51 ++++++++++
test/Makefile | 1 +
test/fuzz/Makefile | 8 ++
test/fuzz/cmd_fuzz.c | 82 ++++++++++++++++
test/fuzz/virtio.c | 72 ++++++++++++++
78 files changed, 680 insertions(+), 204 deletions(-)
create mode 100644 arch/sandbox/include/asm/fuzzing_engine.h
create mode 100644 arch/sandbox/include/asm/main.h
create mode 100644 drivers/fuzz/Kconfig
create mode 100644 drivers/fuzz/Makefile
create mode 100644 drivers/fuzz/fuzzing_engine-uclass.c
create mode 100644 drivers/fuzz/sandbox_fuzzing_engine.c
create mode 100644 include/fuzzing_engine.h
create mode 100644 include/test/fuzz.h
create mode 100644 test/fuzz/Makefile
create mode 100644 test/fuzz/cmd_fuzz.c
create mode 100644 test/fuzz/virtio.c
--
2.35.1.1178.g4f1659d476-goog
^ permalink raw reply [flat|nested] 21+ messages in thread
* [PATCH v2 01/12] sandbox: Fix EFI runtime symbol placement
2022-04-14 13:59 [PATCH 00/11] Fuzzing and ASAN for sandbox Andrew Scull
@ 2022-04-14 13:59 ` Andrew Scull
2022-04-14 13:59 ` [PATCH v2 02/12] sandbox: Rename EFI runtime sections Andrew Scull
` (10 subsequent siblings)
11 siblings, 0 replies; 21+ messages in thread
From: Andrew Scull @ 2022-04-14 13:59 UTC (permalink / raw)
To: u-boot; +Cc: sjg, xypron.glpk, Andrew Scull
The EFI symbols are collected in subsections of the .text, .rodata,
.data and .rel sections. Use those when creating EFI runtime sections.
Fixes: 7bf07cf872 (Partially revert "efi_loader: Rename sections to allow for implicit data")
Signed-off-by: Andrew Scull <ascull@google.com>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Cc: Simon Glass <sjg@chromium.org>
---
arch/sandbox/cpu/u-boot.lds | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/arch/sandbox/cpu/u-boot.lds b/arch/sandbox/cpu/u-boot.lds
index 6d710618f5..64db801018 100644
--- a/arch/sandbox/cpu/u-boot.lds
+++ b/arch/sandbox/cpu/u-boot.lds
@@ -24,8 +24,9 @@ SECTIONS
}
.efi_runtime : {
- *(efi_runtime_text)
- *(efi_runtime_data)
+ *(.text.efi_runtime*)
+ *(.rodata.efi_runtime*)
+ *(.data.efi_runtime*)
}
.__efi_runtime_stop : {
@@ -38,8 +39,8 @@ SECTIONS
}
.efi_runtime_rel : {
- *(.relefi_runtime_text)
- *(.relefi_runtime_data)
+ *(.rel*.efi_runtime)
+ *(.rel*.efi_runtime.*)
}
.efi_runtime_rel_stop :
--
2.35.1.1178.g4f1659d476-goog
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v2 02/12] sandbox: Rename EFI runtime sections
2022-04-14 13:59 [PATCH 00/11] Fuzzing and ASAN for sandbox Andrew Scull
2022-04-14 13:59 ` [PATCH v2 01/12] sandbox: Fix EFI runtime symbol placement Andrew Scull
@ 2022-04-14 13:59 ` Andrew Scull
2022-04-14 13:59 ` [PATCH v2 03/12] sandbox: Migrate getopt section to linker list Andrew Scull
` (9 subsequent siblings)
11 siblings, 0 replies; 21+ messages in thread
From: Andrew Scull @ 2022-04-14 13:59 UTC (permalink / raw)
To: u-boot; +Cc: sjg, xypron.glpk, Andrew Scull
Rename the sections used for placing the EFI runtime so they don't start
with a '.'. ELF says that sections starting with a '.' are reserved for
system use whereas they are actually user sections in sandbox.
When they weren't user sections, clang's ASAN added redzones to the
sections and the extra padding meant that the relocation list was no
longer in the expected format. Naming the sections as user sections
resolves this issue.
Signed-off-by: Andrew Scull <ascull@google.com>
---
arch/sandbox/cpu/u-boot.lds | 22 ++++++++++------------
arch/sandbox/lib/sections.c | 8 ++++----
2 files changed, 14 insertions(+), 16 deletions(-)
diff --git a/arch/sandbox/cpu/u-boot.lds b/arch/sandbox/cpu/u-boot.lds
index 64db801018..7abe232ad9 100644
--- a/arch/sandbox/cpu/u-boot.lds
+++ b/arch/sandbox/cpu/u-boot.lds
@@ -19,33 +19,31 @@ SECTIONS
*(.u_boot_sandbox_getopt_end)
}
- .__efi_runtime_start : {
- *(.__efi_runtime_start)
+ efi_runtime_start : {
+ *(___efi_runtime_start)
}
- .efi_runtime : {
+ efi_runtime : {
*(.text.efi_runtime*)
*(.rodata.efi_runtime*)
*(.data.efi_runtime*)
}
- .__efi_runtime_stop : {
- *(.__efi_runtime_stop)
+ efi_runtime_stop : {
+ *(___efi_runtime_stop)
}
- .efi_runtime_rel_start :
- {
- *(.__efi_runtime_rel_start)
+ efi_runtime_rel_start : {
+ *(___efi_runtime_rel_start)
}
- .efi_runtime_rel : {
+ efi_runtime_rel : {
*(.rel*.efi_runtime)
*(.rel*.efi_runtime.*)
}
- .efi_runtime_rel_stop :
- {
- *(.__efi_runtime_rel_stop)
+ efi_runtime_rel_stop : {
+ *(___efi_runtime_rel_stop)
}
.dynsym :
diff --git a/arch/sandbox/lib/sections.c b/arch/sandbox/lib/sections.c
index 2559eeea38..2f2f3fbfdb 100644
--- a/arch/sandbox/lib/sections.c
+++ b/arch/sandbox/lib/sections.c
@@ -5,9 +5,9 @@
*/
#include <linux/compiler.h>
-char __efi_runtime_start[0] __section(".__efi_runtime_start");
-char __efi_runtime_stop[0] __section(".__efi_runtime_stop");
+char __efi_runtime_start[0] __section("___efi_runtime_start");
+char __efi_runtime_stop[0] __section("___efi_runtime_stop");
char __efi_runtime_rel_start[0]
- __section(".__efi_runtime_rel_start");
+ __section("___efi_runtime_rel_start");
char __efi_runtime_rel_stop[0]
- __section(".__efi_runtime_rel_stop");
+ __section("___efi_runtime_rel_stop");
--
2.35.1.1178.g4f1659d476-goog
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v2 03/12] sandbox: Migrate getopt section to linker list
2022-04-14 13:59 [PATCH 00/11] Fuzzing and ASAN for sandbox Andrew Scull
2022-04-14 13:59 ` [PATCH v2 01/12] sandbox: Fix EFI runtime symbol placement Andrew Scull
2022-04-14 13:59 ` [PATCH v2 02/12] sandbox: Rename EFI runtime sections Andrew Scull
@ 2022-04-14 13:59 ` Andrew Scull
2022-04-29 15:11 ` Tom Rini
2022-04-14 13:59 ` [PATCH v2 04/12] linker_lists: Rename sections to remove . prefix Andrew Scull
` (8 subsequent siblings)
11 siblings, 1 reply; 21+ messages in thread
From: Andrew Scull @ 2022-04-14 13:59 UTC (permalink / raw)
To: u-boot; +Cc: sjg, xypron.glpk, Andrew Scull
Use the common infrastructure to create a linker list of the sandbox
command line flags rather than using a custom method.
The list is changed from containing pointers to containing structs and
the uses are updated accordingly.
Signed-off-by: Andrew Scull <ascull@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
arch/sandbox/cpu/os.c | 21 ++++++++++-----------
arch/sandbox/cpu/start.c | 10 +++++-----
arch/sandbox/cpu/u-boot-spl.lds | 6 ------
arch/sandbox/cpu/u-boot.lds | 6 ------
arch/sandbox/include/asm/getopt.h | 19 ++++++++++++-------
arch/sandbox/include/asm/sections.h | 25 -------------------------
6 files changed, 27 insertions(+), 60 deletions(-)
diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c
index d83c862182..72a72029f2 100644
--- a/arch/sandbox/cpu/os.c
+++ b/arch/sandbox/cpu/os.c
@@ -424,9 +424,8 @@ static struct option *long_opts;
int os_parse_args(struct sandbox_state *state, int argc, char *argv[])
{
- struct sandbox_cmdline_option **sb_opt =
- __u_boot_sandbox_option_start();
- size_t num_options = __u_boot_sandbox_option_count();
+ struct sandbox_cmdline_option *sb_opt = SANDBOX_CMDLINE_OPT_START();
+ size_t num_options = SANDBOX_CMDLINE_OPT_COUNT();
size_t i;
int hidden_short_opt;
@@ -455,17 +454,17 @@ int os_parse_args(struct sandbox_state *state, int argc, char *argv[])
hidden_short_opt = 0x100;
si = 0;
for (i = 0; i < num_options; ++i) {
- long_opts[i].name = sb_opt[i]->flag;
- long_opts[i].has_arg = sb_opt[i]->has_arg ?
+ long_opts[i].name = sb_opt[i].flag;
+ long_opts[i].has_arg = sb_opt[i].has_arg ?
required_argument : no_argument;
long_opts[i].flag = NULL;
- if (sb_opt[i]->flag_short) {
- short_opts[si++] = long_opts[i].val = sb_opt[i]->flag_short;
+ if (sb_opt[i].flag_short) {
+ short_opts[si++] = long_opts[i].val = sb_opt[i].flag_short;
if (long_opts[i].has_arg == required_argument)
short_opts[si++] = ':';
} else
- long_opts[i].val = sb_opt[i]->flag_short = hidden_short_opt++;
+ long_opts[i].val = sb_opt[i].flag_short = hidden_short_opt++;
}
short_opts[si] = '\0';
@@ -480,9 +479,9 @@ int os_parse_args(struct sandbox_state *state, int argc, char *argv[])
*/
while ((c = getopt_long(argc, argv, short_opts, long_opts, NULL)) != -1) {
for (i = 0; i < num_options; ++i) {
- if (sb_opt[i]->flag_short == c) {
- if (sb_opt[i]->callback(state, optarg)) {
- state->parse_err = sb_opt[i]->flag;
+ if (sb_opt[i].flag_short == c) {
+ if (sb_opt[i].callback(state, optarg)) {
+ state->parse_err = sb_opt[i].flag;
return 0;
}
break;
diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c
index 0f5a87309d..6bcb8ffa28 100644
--- a/arch/sandbox/cpu/start.c
+++ b/arch/sandbox/cpu/start.c
@@ -59,9 +59,8 @@ static int h_compare_opt(const void *p1, const void *p2)
int sandbox_early_getopt_check(void)
{
struct sandbox_state *state = state_get_current();
- struct sandbox_cmdline_option **sb_opt =
- __u_boot_sandbox_option_start();
- size_t num_options = __u_boot_sandbox_option_count();
+ struct sandbox_cmdline_option *sb_opt = SANDBOX_CMDLINE_OPT_START();
+ size_t num_options = SANDBOX_CMDLINE_OPT_COUNT();
size_t i;
int max_arg_len, max_noarg_len;
struct sandbox_cmdline_option **sorted_opt;
@@ -85,7 +84,7 @@ int sandbox_early_getopt_check(void)
max_arg_len = 0;
for (i = 0; i < num_options; ++i)
- max_arg_len = max((int)strlen(sb_opt[i]->flag), max_arg_len);
+ max_arg_len = max((int)strlen(sb_opt[i].flag), max_arg_len);
max_noarg_len = max_arg_len + 7;
/* Sort the options */
@@ -95,7 +94,8 @@ int sandbox_early_getopt_check(void)
printf("No memory to sort options\n");
os_exit(1);
}
- memcpy(sorted_opt, sb_opt, size);
+ for (i = 0; i < num_options; ++i)
+ sorted_opt[i] = &sb_opt[i];
qsort(sorted_opt, num_options, sizeof(*sorted_opt), h_compare_opt);
for (i = 0; i < num_options; ++i) {
diff --git a/arch/sandbox/cpu/u-boot-spl.lds b/arch/sandbox/cpu/u-boot-spl.lds
index 6754f4ef6c..5c19d090cb 100644
--- a/arch/sandbox/cpu/u-boot-spl.lds
+++ b/arch/sandbox/cpu/u-boot-spl.lds
@@ -20,12 +20,6 @@ SECTIONS
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.priv_data*)))
__priv_data_end = .;
}
-
- _u_boot_sandbox_getopt : {
- *(.u_boot_sandbox_getopt_start)
- KEEP(*(.u_boot_sandbox_getopt))
- *(.u_boot_sandbox_getopt_end)
- }
}
INSERT AFTER .data;
diff --git a/arch/sandbox/cpu/u-boot.lds b/arch/sandbox/cpu/u-boot.lds
index 7abe232ad9..6fa244fae9 100644
--- a/arch/sandbox/cpu/u-boot.lds
+++ b/arch/sandbox/cpu/u-boot.lds
@@ -13,12 +13,6 @@ SECTIONS
KEEP(*(SORT(.u_boot_list*)));
}
- _u_boot_sandbox_getopt : {
- *(.u_boot_sandbox_getopt_start)
- *(.u_boot_sandbox_getopt)
- *(.u_boot_sandbox_getopt_end)
- }
-
efi_runtime_start : {
*(___efi_runtime_start)
}
diff --git a/arch/sandbox/include/asm/getopt.h b/arch/sandbox/include/asm/getopt.h
index d2145ad6e2..a4b510bd20 100644
--- a/arch/sandbox/include/asm/getopt.h
+++ b/arch/sandbox/include/asm/getopt.h
@@ -9,6 +9,8 @@
#ifndef __SANDBOX_GETOPT_H
#define __SANDBOX_GETOPT_H
+#include <linker_lists.h>
+
struct sandbox_state;
/*
@@ -36,18 +38,13 @@ struct sandbox_cmdline_option {
* magic junk that makes this all work.
*/
#define _SANDBOX_CMDLINE_OPT(f, s, ha, h) \
- static struct sandbox_cmdline_option sandbox_cmdline_option_##f = { \
+ ll_entry_declare(struct sandbox_cmdline_option, f, sandbox_getopt) = { \
.flag = #f, \
.flag_short = s, \
.help = h, \
.has_arg = ha, \
.callback = sandbox_cmdline_cb_##f, \
- }; \
- /* Ppointer to the struct in a special section for the linker script */ \
- static __used __section(".u_boot_sandbox_getopt") \
- struct sandbox_cmdline_option \
- *sandbox_cmdline_option_##f##_ptr = \
- &sandbox_cmdline_option_##f
+ }
/**
* Macros for end code to declare new command line flags.
@@ -69,4 +66,12 @@ struct sandbox_cmdline_option {
*/
#define SANDBOX_CMDLINE_OPT_SHORT(f, s, ha, h) _SANDBOX_CMDLINE_OPT(f, s, ha, h)
+/** Get the start of the list of command line flags. */
+#define SANDBOX_CMDLINE_OPT_START() \
+ ll_entry_start(struct sandbox_cmdline_option, sandbox_getopt)
+
+/** Get the number of entries in the command line flags list. */
+#define SANDBOX_CMDLINE_OPT_COUNT() \
+ ll_entry_count(struct sandbox_cmdline_option, sandbox_getopt)
+
#endif
diff --git a/arch/sandbox/include/asm/sections.h b/arch/sandbox/include/asm/sections.h
index f4351ae7db..c335cb2061 100644
--- a/arch/sandbox/include/asm/sections.h
+++ b/arch/sandbox/include/asm/sections.h
@@ -11,29 +11,4 @@
#include <asm-generic/sections.h>
-struct sandbox_cmdline_option;
-
-static inline struct sandbox_cmdline_option **
-__u_boot_sandbox_option_start(void)
-{
- static char start[0] __aligned(4) __attribute__((unused))
- __section(".u_boot_sandbox_getopt_start");
-
- return (struct sandbox_cmdline_option **)&start;
-}
-
-static inline struct sandbox_cmdline_option **
-__u_boot_sandbox_option_end(void)
-{
- static char end[0] __aligned(4) __attribute__((unused))
- __section(".u_boot_sandbox_getopt_end");
-
- return (struct sandbox_cmdline_option **)&end;
-}
-
-static inline size_t __u_boot_sandbox_option_count(void)
-{
- return __u_boot_sandbox_option_end() - __u_boot_sandbox_option_start();
-}
-
#endif
--
2.35.1.1178.g4f1659d476-goog
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v2 04/12] linker_lists: Rename sections to remove . prefix
2022-04-14 13:59 [PATCH 00/11] Fuzzing and ASAN for sandbox Andrew Scull
` (2 preceding siblings ...)
2022-04-14 13:59 ` [PATCH v2 03/12] sandbox: Migrate getopt section to linker list Andrew Scull
@ 2022-04-14 13:59 ` Andrew Scull
2022-05-17 8:06 ` Heinrich Schuchardt
2022-04-14 13:59 ` [PATCH v2 05/12] sandbox: Add support for Address Sanitizer Andrew Scull
` (7 subsequent siblings)
11 siblings, 1 reply; 21+ messages in thread
From: Andrew Scull @ 2022-04-14 13:59 UTC (permalink / raw)
To: u-boot; +Cc: sjg, xypron.glpk, Andrew Scull
Rename the sections used to implement linker lists so they begin with
'__u_boot_list' rather than '.u_boot_list'. The double underscore at the
start is still distinct from the single underscore used by the symbol
names.
Having a '.' in the section names conflicts with clang's ASAN
instrumentation which tries to add redzones between the linker list
elements, causing expected accesses to fail. However, clang doesn't try
to add redzones to user sections, which are names with all alphanumeric
and underscore characters.
Signed-off-by: Andrew Scull <ascull@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
arch/arc/cpu/u-boot.lds | 4 ++--
arch/arm/config.mk | 4 ++--
arch/arm/cpu/arm926ejs/sunxi/u-boot-spl.lds | 4 ++--
arch/arm/cpu/armv7/sunxi/u-boot-spl.lds | 4 ++--
arch/arm/cpu/armv8/u-boot-spl.lds | 4 ++--
arch/arm/cpu/armv8/u-boot.lds | 4 ++--
arch/arm/cpu/u-boot-spl.lds | 4 ++--
arch/arm/cpu/u-boot.lds | 6 ++---
arch/arm/mach-at91/arm926ejs/u-boot-spl.lds | 2 +-
arch/arm/mach-at91/armv7/u-boot-spl.lds | 2 +-
arch/arm/mach-omap2/u-boot-spl.lds | 4 ++--
arch/arm/mach-orion5x/u-boot-spl.lds | 4 ++--
arch/arm/mach-rockchip/u-boot-tpl-v8.lds | 4 ++--
arch/arm/mach-zynq/u-boot-spl.lds | 4 ++--
arch/arm/mach-zynq/u-boot.lds | 4 ++--
arch/m68k/cpu/u-boot.lds | 4 ++--
arch/microblaze/cpu/u-boot-spl.lds | 4 ++--
arch/microblaze/cpu/u-boot.lds | 4 ++--
arch/mips/config.mk | 2 +-
arch/mips/cpu/u-boot-spl.lds | 4 ++--
arch/mips/cpu/u-boot.lds | 4 ++--
arch/nds32/cpu/n1213/u-boot.lds | 4 ++--
arch/nios2/cpu/u-boot.lds | 4 ++--
arch/powerpc/cpu/mpc83xx/u-boot.lds | 4 ++--
arch/powerpc/cpu/mpc85xx/u-boot-nand.lds | 4 ++--
arch/powerpc/cpu/mpc85xx/u-boot-nand_spl.lds | 4 ++--
arch/powerpc/cpu/mpc85xx/u-boot-spl.lds | 4 ++--
arch/powerpc/cpu/mpc85xx/u-boot.lds | 4 ++--
arch/riscv/cpu/u-boot-spl.lds | 4 ++--
arch/riscv/cpu/u-boot.lds | 4 ++--
arch/sandbox/config.mk | 4 ++--
arch/sandbox/cpu/u-boot-spl.lds | 4 ++--
arch/sandbox/cpu/u-boot.lds | 4 ++--
arch/sh/cpu/u-boot.lds | 4 ++--
arch/x86/cpu/u-boot-64.lds | 6 ++---
arch/x86/cpu/u-boot-spl.lds | 6 ++---
arch/x86/cpu/u-boot.lds | 6 ++---
arch/x86/lib/elf_ia32_efi.lds | 4 ++--
arch/x86/lib/elf_x86_64_efi.lds | 4 ++--
arch/xtensa/cpu/u-boot.lds | 2 +-
arch/xtensa/include/asm/ldscript.h | 4 ++--
board/compulab/cm_t335/u-boot.lds | 4 ++--
board/cssi/MCR3000/u-boot.lds | 4 ++--
.../davinci/da8xxevm/u-boot-spl-da850evm.lds | 2 +-
board/qualcomm/dragonboard820c/u-boot.lds | 4 ++--
board/samsung/common/exynos-uboot-spl.lds | 4 ++--
board/synopsys/iot_devkit/u-boot.lds | 4 ++--
board/ti/am335x/u-boot.lds | 4 ++--
board/vscom/baltos/u-boot.lds | 4 ++--
doc/api/linker_lists.rst | 22 +++++++++----------
doc/develop/commands.rst | 4 ++--
doc/develop/driver-model/of-plat.rst | 4 ++--
include/linker_lists.h | 18 +++++++--------
53 files changed, 121 insertions(+), 121 deletions(-)
diff --git a/arch/arc/cpu/u-boot.lds b/arch/arc/cpu/u-boot.lds
index e12145c768..9f2973da65 100644
--- a/arch/arc/cpu/u-boot.lds
+++ b/arch/arc/cpu/u-boot.lds
@@ -39,8 +39,8 @@ SECTIONS
}
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = ALIGN(4);
diff --git a/arch/arm/config.mk b/arch/arm/config.mk
index b107b1af27..b3548ce243 100644
--- a/arch/arm/config.mk
+++ b/arch/arm/config.mk
@@ -141,11 +141,11 @@ endif
# limit ourselves to the sections we want in the .bin.
ifdef CONFIG_ARM64
OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .data \
- -j .u_boot_list -j .rela.dyn -j .got -j .got.plt \
+ -j __u_boot_list -j .rela.dyn -j .got -j .got.plt \
-j .binman_sym_table -j .text_rest
else
OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .hash \
- -j .data -j .got -j .got.plt -j .u_boot_list -j .rel.dyn \
+ -j .data -j .got -j .got.plt -j __u_boot_list -j .rel.dyn \
-j .binman_sym_table -j .text_rest
endif
diff --git a/arch/arm/cpu/arm926ejs/sunxi/u-boot-spl.lds b/arch/arm/cpu/arm926ejs/sunxi/u-boot-spl.lds
index 9a000ac5d3..c108736811 100644
--- a/arch/arm/cpu/arm926ejs/sunxi/u-boot-spl.lds
+++ b/arch/arm/cpu/arm926ejs/sunxi/u-boot-spl.lds
@@ -29,8 +29,8 @@ SECTIONS
.data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
} > .sram
. = ALIGN(4);
diff --git a/arch/arm/cpu/armv7/sunxi/u-boot-spl.lds b/arch/arm/cpu/armv7/sunxi/u-boot-spl.lds
index 942c29fc95..306a4ddf3c 100644
--- a/arch/arm/cpu/armv7/sunxi/u-boot-spl.lds
+++ b/arch/arm/cpu/armv7/sunxi/u-boot-spl.lds
@@ -38,8 +38,8 @@ SECTIONS
.data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
} > .sram
. = ALIGN(4);
diff --git a/arch/arm/cpu/armv8/u-boot-spl.lds b/arch/arm/cpu/armv8/u-boot-spl.lds
index 730eb93dbc..d02b788e60 100644
--- a/arch/arm/cpu/armv8/u-boot-spl.lds
+++ b/arch/arm/cpu/armv8/u-boot-spl.lds
@@ -46,9 +46,9 @@ SECTIONS
} >.sram
#endif
- .u_boot_list : {
+ __u_boot_list : {
. = ALIGN(8);
- KEEP(*(SORT(.u_boot_list*)));
+ KEEP(*(SORT(__u_boot_list*)));
} >.sram
.image_copy_end : {
diff --git a/arch/arm/cpu/armv8/u-boot.lds b/arch/arm/cpu/armv8/u-boot.lds
index 2554980595..8fe4682dd2 100644
--- a/arch/arm/cpu/armv8/u-boot.lds
+++ b/arch/arm/cpu/armv8/u-boot.lds
@@ -109,8 +109,8 @@ SECTIONS
. = .;
. = ALIGN(8);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = ALIGN(8);
diff --git a/arch/arm/cpu/u-boot-spl.lds b/arch/arm/cpu/u-boot-spl.lds
index 97899a567f..fb2189d50d 100644
--- a/arch/arm/cpu/u-boot-spl.lds
+++ b/arch/arm/cpu/u-boot-spl.lds
@@ -32,8 +32,8 @@ SECTIONS
}
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = ALIGN(4);
diff --git a/arch/arm/cpu/u-boot.lds b/arch/arm/cpu/u-boot.lds
index 0eb164d2e6..f25f72b2e0 100644
--- a/arch/arm/cpu/u-boot.lds
+++ b/arch/arm/cpu/u-boot.lds
@@ -15,7 +15,7 @@ ENTRY(_start)
SECTIONS
{
#ifndef CONFIG_CMDLINE
- /DISCARD/ : { *(.u_boot_list_2_cmd_*) }
+ /DISCARD/ : { *(__u_boot_list_2_cmd_*) }
#endif
#if defined(CONFIG_ARMV7_SECURE_BASE) && defined(CONFIG_ARMV7_NONSEC)
/*
@@ -149,8 +149,8 @@ SECTIONS
. = .;
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = ALIGN(4);
diff --git a/arch/arm/mach-at91/arm926ejs/u-boot-spl.lds b/arch/arm/mach-at91/arm926ejs/u-boot-spl.lds
index 74f6355229..1a8bf94dee 100644
--- a/arch/arm/mach-at91/arm926ejs/u-boot-spl.lds
+++ b/arch/arm/mach-at91/arm926ejs/u-boot-spl.lds
@@ -29,7 +29,7 @@ SECTIONS
.data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
. = ALIGN(4);
- .u_boot_list : { KEEP(*(SORT(.u_boot_list*))) } > .sram
+ __u_boot_list : { KEEP(*(SORT(__u_boot_list*))) } > .sram
. = ALIGN(4);
__image_copy_end = .;
diff --git a/arch/arm/mach-at91/armv7/u-boot-spl.lds b/arch/arm/mach-at91/armv7/u-boot-spl.lds
index 950ea55d7c..6ca725fc4c 100644
--- a/arch/arm/mach-at91/armv7/u-boot-spl.lds
+++ b/arch/arm/mach-at91/armv7/u-boot-spl.lds
@@ -36,7 +36,7 @@ SECTIONS
.data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
. = ALIGN(4);
- .u_boot_list : { KEEP(*(SORT(.u_boot_list*))) } > .sram
+ __u_boot_list : { KEEP(*(SORT(__u_boot_list*))) } > .sram
. = ALIGN(4);
__image_copy_end = .;
diff --git a/arch/arm/mach-omap2/u-boot-spl.lds b/arch/arm/mach-omap2/u-boot-spl.lds
index 88d81f9b98..1d6e5d45b4 100644
--- a/arch/arm/mach-omap2/u-boot-spl.lds
+++ b/arch/arm/mach-omap2/u-boot-spl.lds
@@ -33,8 +33,8 @@ SECTIONS
.data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
} >.sram
. = ALIGN(4);
diff --git a/arch/arm/mach-orion5x/u-boot-spl.lds b/arch/arm/mach-orion5x/u-boot-spl.lds
index a537fe0295..154bb12060 100644
--- a/arch/arm/mach-orion5x/u-boot-spl.lds
+++ b/arch/arm/mach-orion5x/u-boot-spl.lds
@@ -41,8 +41,8 @@ SECTIONS
.data : { *(SORT_BY_ALIGNMENT(.data*)) } >.nor
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
} > .nor
. = ALIGN(4);
diff --git a/arch/arm/mach-rockchip/u-boot-tpl-v8.lds b/arch/arm/mach-rockchip/u-boot-tpl-v8.lds
index 9869972e22..74618eba59 100644
--- a/arch/arm/mach-rockchip/u-boot-tpl-v8.lds
+++ b/arch/arm/mach-rockchip/u-boot-tpl-v8.lds
@@ -39,9 +39,9 @@ SECTIONS
*(.data*)
}
- .u_boot_list : {
+ __u_boot_list : {
. = ALIGN(8);
- KEEP(*(SORT(.u_boot_list*)));
+ KEEP(*(SORT(__u_boot_list*)));
}
.image_copy_end : {
diff --git a/arch/arm/mach-zynq/u-boot-spl.lds b/arch/arm/mach-zynq/u-boot-spl.lds
index 106d2e390b..8c18d3f91f 100644
--- a/arch/arm/mach-zynq/u-boot-spl.lds
+++ b/arch/arm/mach-zynq/u-boot-spl.lds
@@ -37,8 +37,8 @@ SECTIONS
} > .sram
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
} > .sram
. = ALIGN(4);
diff --git a/arch/arm/mach-zynq/u-boot.lds b/arch/arm/mach-zynq/u-boot.lds
index 91c32e89e8..a5169fd915 100644
--- a/arch/arm/mach-zynq/u-boot.lds
+++ b/arch/arm/mach-zynq/u-boot.lds
@@ -54,8 +54,8 @@ SECTIONS
. = .;
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = ALIGN(4);
diff --git a/arch/m68k/cpu/u-boot.lds b/arch/m68k/cpu/u-boot.lds
index affb2d9374..133f79150b 100644
--- a/arch/m68k/cpu/u-boot.lds
+++ b/arch/m68k/cpu/u-boot.lds
@@ -60,8 +60,8 @@ SECTIONS
. = .;
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = .;
diff --git a/arch/microblaze/cpu/u-boot-spl.lds b/arch/microblaze/cpu/u-boot-spl.lds
index 7883a64b15..4ac5a21524 100644
--- a/arch/microblaze/cpu/u-boot-spl.lds
+++ b/arch/microblaze/cpu/u-boot-spl.lds
@@ -37,8 +37,8 @@ SECTIONS
}
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
__init_end = . ;
diff --git a/arch/microblaze/cpu/u-boot.lds b/arch/microblaze/cpu/u-boot.lds
index 2b316cc7f5..8bd515b099 100644
--- a/arch/microblaze/cpu/u-boot.lds
+++ b/arch/microblaze/cpu/u-boot.lds
@@ -41,8 +41,8 @@ SECTIONS
}
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
__init_end = . ;
diff --git a/arch/mips/config.mk b/arch/mips/config.mk
index faf4129ac1..04f3627805 100644
--- a/arch/mips/config.mk
+++ b/arch/mips/config.mk
@@ -65,6 +65,6 @@ PLATFORM_CPPFLAGS += -msoft-float
KBUILD_LDFLAGS += -G 0 -static -n -nostdlib
PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
LDFLAGS_FINAL += --gc-sections
-OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .u_boot_list
+OBJCOPYFLAGS += -j .text -j .rodata -j .data -j __u_boot_list
LDFLAGS_STANDALONE += --gc-sections
diff --git a/arch/mips/cpu/u-boot-spl.lds b/arch/mips/cpu/u-boot-spl.lds
index 28ea4f2a48..194398be85 100644
--- a/arch/mips/cpu/u-boot-spl.lds
+++ b/arch/mips/cpu/u-boot-spl.lds
@@ -29,8 +29,8 @@ SECTIONS
#if defined(CONFIG_SPL_DM) || defined(CONFIG_SPL_LOADER_SUPPORT)
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
} > .spl_mem
#endif
diff --git a/arch/mips/cpu/u-boot.lds b/arch/mips/cpu/u-boot.lds
index 86496737d3..9a4ebcd151 100644
--- a/arch/mips/cpu/u-boot.lds
+++ b/arch/mips/cpu/u-boot.lds
@@ -33,8 +33,8 @@ SECTIONS
}
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = ALIGN(4);
diff --git a/arch/nds32/cpu/n1213/u-boot.lds b/arch/nds32/cpu/n1213/u-boot.lds
index 4abaf0af1a..1040171415 100644
--- a/arch/nds32/cpu/n1213/u-boot.lds
+++ b/arch/nds32/cpu/n1213/u-boot.lds
@@ -35,8 +35,8 @@ SECTIONS
}
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = ALIGN(4);
diff --git a/arch/nios2/cpu/u-boot.lds b/arch/nios2/cpu/u-boot.lds
index cbf54b4610..5b9e27d940 100644
--- a/arch/nios2/cpu/u-boot.lds
+++ b/arch/nios2/cpu/u-boot.lds
@@ -32,8 +32,8 @@ SECTIONS
*/
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
/* INIT DATA sections - "Small" data (see the gcc -G option)
diff --git a/arch/powerpc/cpu/mpc83xx/u-boot.lds b/arch/powerpc/cpu/mpc83xx/u-boot.lds
index d10f528da4..1a1e537b2a 100644
--- a/arch/powerpc/cpu/mpc83xx/u-boot.lds
+++ b/arch/powerpc/cpu/mpc83xx/u-boot.lds
@@ -42,8 +42,8 @@ SECTIONS
. = .;
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
diff --git a/arch/powerpc/cpu/mpc85xx/u-boot-nand.lds b/arch/powerpc/cpu/mpc85xx/u-boot-nand.lds
index 75b0285e4e..3a9746c860 100644
--- a/arch/powerpc/cpu/mpc85xx/u-boot-nand.lds
+++ b/arch/powerpc/cpu/mpc85xx/u-boot-nand.lds
@@ -59,8 +59,8 @@ SECTIONS
. = .;
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = .;
diff --git a/arch/powerpc/cpu/mpc85xx/u-boot-nand_spl.lds b/arch/powerpc/cpu/mpc85xx/u-boot-nand_spl.lds
index a2193bf768..fc2519d0b1 100644
--- a/arch/powerpc/cpu/mpc85xx/u-boot-nand_spl.lds
+++ b/arch/powerpc/cpu/mpc85xx/u-boot-nand_spl.lds
@@ -35,8 +35,8 @@ SECTIONS
}
_edata = .;
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = ALIGN(8);
diff --git a/arch/powerpc/cpu/mpc85xx/u-boot-spl.lds b/arch/powerpc/cpu/mpc85xx/u-boot-spl.lds
index 27a5fe6306..2f59b4fc12 100644
--- a/arch/powerpc/cpu/mpc85xx/u-boot-spl.lds
+++ b/arch/powerpc/cpu/mpc85xx/u-boot-spl.lds
@@ -43,8 +43,8 @@ SECTIONS
_edata = .;
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = .;
diff --git a/arch/powerpc/cpu/mpc85xx/u-boot.lds b/arch/powerpc/cpu/mpc85xx/u-boot.lds
index 22bbac51aa..b6855f5571 100644
--- a/arch/powerpc/cpu/mpc85xx/u-boot.lds
+++ b/arch/powerpc/cpu/mpc85xx/u-boot.lds
@@ -66,8 +66,8 @@ SECTIONS
. = .;
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = .;
diff --git a/arch/riscv/cpu/u-boot-spl.lds b/arch/riscv/cpu/u-boot-spl.lds
index d0495ce248..993536302a 100644
--- a/arch/riscv/cpu/u-boot-spl.lds
+++ b/arch/riscv/cpu/u-boot-spl.lds
@@ -40,8 +40,8 @@ SECTIONS
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
} > .spl_mem
. = ALIGN(4);
diff --git a/arch/riscv/cpu/u-boot.lds b/arch/riscv/cpu/u-boot.lds
index c00d17c736..1c937aebee 100644
--- a/arch/riscv/cpu/u-boot.lds
+++ b/arch/riscv/cpu/u-boot.lds
@@ -44,8 +44,8 @@ SECTIONS
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = ALIGN(4);
diff --git a/arch/sandbox/config.mk b/arch/sandbox/config.mk
index 2b1b657831..c42de2ff27 100644
--- a/arch/sandbox/config.mk
+++ b/arch/sandbox/config.mk
@@ -44,13 +44,13 @@ EFI_TARGET := --target=efi-app-ia32
else ifeq ($(HOST_ARCH),$(HOST_ARCH_AARCH64))
EFI_LDS := ${SRCDIR}/../../../arch/arm/lib/elf_aarch64_efi.lds
OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .data \
- -j .u_boot_list -j .rela.dyn -j .got -j .got.plt \
+ -j __u_boot_list -j .rela.dyn -j .got -j .got.plt \
-j .binman_sym_table -j .text_rest \
-j .efi_runtime -j .efi_runtime_rel
else ifeq ($(HOST_ARCH),$(HOST_ARCH_ARM))
EFI_LDS := ${SRCDIR}/../../../arch/arm/lib/elf_arm_efi.lds
OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .hash \
- -j .data -j .got -j .got.plt -j .u_boot_list -j .rel.dyn \
+ -j .data -j .got -j .got.plt -j __u_boot_list -j .rel.dyn \
-j .binman_sym_table -j .text_rest \
-j .efi_runtime -j .efi_runtime_rel
else ifeq ($(HOST_ARCH),$(HOST_ARCH_RISCV32))
diff --git a/arch/sandbox/cpu/u-boot-spl.lds b/arch/sandbox/cpu/u-boot-spl.lds
index 5c19d090cb..046ed0875b 100644
--- a/arch/sandbox/cpu/u-boot-spl.lds
+++ b/arch/sandbox/cpu/u-boot-spl.lds
@@ -9,8 +9,8 @@ SECTIONS
{
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
/* Private data for devices with OF_PLATDATA_RT */
diff --git a/arch/sandbox/cpu/u-boot.lds b/arch/sandbox/cpu/u-boot.lds
index 6fa244fae9..b74da3aa0d 100644
--- a/arch/sandbox/cpu/u-boot.lds
+++ b/arch/sandbox/cpu/u-boot.lds
@@ -9,8 +9,8 @@ SECTIONS
{
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
efi_runtime_start : {
diff --git a/arch/sh/cpu/u-boot.lds b/arch/sh/cpu/u-boot.lds
index 4cc97737f1..ff80ce78f3 100644
--- a/arch/sh/cpu/u-boot.lds
+++ b/arch/sh/cpu/u-boot.lds
@@ -70,8 +70,8 @@ SECTIONS
} >ram
PROVIDE (_egot = .);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
} >ram
PROVIDE (__init_end = .);
diff --git a/arch/x86/cpu/u-boot-64.lds b/arch/x86/cpu/u-boot-64.lds
index 92a30c2a38..53c56043a9 100644
--- a/arch/x86/cpu/u-boot-64.lds
+++ b/arch/x86/cpu/u-boot-64.lds
@@ -12,7 +12,7 @@ ENTRY(_start)
SECTIONS
{
#ifndef CONFIG_CMDLINE
- /DISCARD/ : { *(.u_boot_list_2_cmd_*) }
+ /DISCARD/ : { *(__u_boot_list_2_cmd_*) }
#endif
#ifdef CONFIG_SYS_TEXT_BASE
@@ -41,8 +41,8 @@ SECTIONS
. = ALIGN(4);
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = ALIGN(4);
diff --git a/arch/x86/cpu/u-boot-spl.lds b/arch/x86/cpu/u-boot-spl.lds
index 346f60bdac..a0a2a06a18 100644
--- a/arch/x86/cpu/u-boot-spl.lds
+++ b/arch/x86/cpu/u-boot-spl.lds
@@ -12,7 +12,7 @@ ENTRY(_start)
SECTIONS
{
#ifndef CONFIG_CMDLINE
- /DISCARD/ : { *(.u_boot_list_2_cmd_*) }
+ /DISCARD/ : { *(__u_boot_list_2_cmd_*) }
#endif
. = IMAGE_TEXT_BASE; /* Location of bootcode in flash */
@@ -25,8 +25,8 @@ SECTIONS
. = ALIGN(4);
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = ALIGN(4);
diff --git a/arch/x86/cpu/u-boot.lds b/arch/x86/cpu/u-boot.lds
index 22fde01e74..7c87209834 100644
--- a/arch/x86/cpu/u-boot.lds
+++ b/arch/x86/cpu/u-boot.lds
@@ -12,7 +12,7 @@ ENTRY(_start)
SECTIONS
{
#ifndef CONFIG_CMDLINE
- /DISCARD/ : { *(.u_boot_list_2_cmd_*) }
+ /DISCARD/ : { *(__u_boot_list_2_cmd_*) }
#endif
. = CONFIG_SYS_TEXT_BASE; /* Location of bootcode in flash */
@@ -39,8 +39,8 @@ SECTIONS
. = ALIGN(4);
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = ALIGN(4);
diff --git a/arch/x86/lib/elf_ia32_efi.lds b/arch/x86/lib/elf_ia32_efi.lds
index aad61e7f81..6d89c1fbd5 100644
--- a/arch/x86/lib/elf_ia32_efi.lds
+++ b/arch/x86/lib/elf_ia32_efi.lds
@@ -51,7 +51,7 @@ SECTIONS
/* U-Boot lists and device tree */
. = ALIGN(8);
- *(SORT(.u_boot_list*));
+ *(SORT(__u_boot_list*));
. = ALIGN(8);
*(.dtb*);
}
@@ -69,7 +69,7 @@ SECTIONS
*(.data.rel.local)
*(.data.rel.ro)
*(.data.rel*)
- *(.rel.u_boot_list*)
+ *(.rel__u_boot_list*)
}
. = ALIGN(4096);
.reloc : /* This is the PECOFF .reloc section! */
diff --git a/arch/x86/lib/elf_x86_64_efi.lds b/arch/x86/lib/elf_x86_64_efi.lds
index 75727400aa..ada024c05c 100644
--- a/arch/x86/lib/elf_x86_64_efi.lds
+++ b/arch/x86/lib/elf_x86_64_efi.lds
@@ -50,7 +50,7 @@ SECTIONS
/* U-Boot lists and device tree */
. = ALIGN(8);
- *(SORT(.u_boot_list*));
+ *(SORT(__u_boot_list*));
. = ALIGN(8);
*(.dtb*);
}
@@ -63,7 +63,7 @@ SECTIONS
*(.rela.data*)
*(.rela.got)
*(.rela.stab)
- *(.rela.u_boot_list*)
+ *(.rela__u_boot_list*)
}
. = ALIGN(4096);
diff --git a/arch/xtensa/cpu/u-boot.lds b/arch/xtensa/cpu/u-boot.lds
index 493f3fdb99..37dc92b308 100644
--- a/arch/xtensa/cpu/u-boot.lds
+++ b/arch/xtensa/cpu/u-boot.lds
@@ -78,7 +78,7 @@ SECTIONS
SECTION_text(XTENSA_SYS_TEXT_ADDR, FOLLOWING(.DoubleExceptionVector.text))
SECTION_rodata(ALIGN(16), FOLLOWING(.text))
SECTION_u_boot_list(ALIGN(16), FOLLOWING(.rodata))
- SECTION_data(ALIGN(16), FOLLOWING(.u_boot_list))
+ SECTION_data(ALIGN(16), FOLLOWING(__u_boot_list))
__reloc_end = .;
__init_end = .;
diff --git a/arch/xtensa/include/asm/ldscript.h b/arch/xtensa/include/asm/ldscript.h
index 08f5d0135e..4f75483356 100644
--- a/arch/xtensa/include/asm/ldscript.h
+++ b/arch/xtensa/include/asm/ldscript.h
@@ -100,10 +100,10 @@
}
#define SECTION_u_boot_list(_vma_, _lma_) \
- .u_boot_list _vma_ : _lma_ \
+ __u_boot_list _vma_ : _lma_ \
{ \
_u_boot_list_start = ABSOLUTE(.); \
- KEEP(*(SORT(.u_boot_list*))); \
+ KEEP(*(SORT(__u_boot_list*))); \
_u_boot_list_end = ABSOLUTE(.); \
}
diff --git a/board/compulab/cm_t335/u-boot.lds b/board/compulab/cm_t335/u-boot.lds
index b00e466d58..4993880461 100644
--- a/board/compulab/cm_t335/u-boot.lds
+++ b/board/compulab/cm_t335/u-boot.lds
@@ -36,8 +36,8 @@ SECTIONS
. = .;
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = ALIGN(4);
diff --git a/board/cssi/MCR3000/u-boot.lds b/board/cssi/MCR3000/u-boot.lds
index 70aef3241c..24b535e724 100644
--- a/board/cssi/MCR3000/u-boot.lds
+++ b/board/cssi/MCR3000/u-boot.lds
@@ -59,8 +59,8 @@ SECTIONS
. = .;
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = .;
diff --git a/board/davinci/da8xxevm/u-boot-spl-da850evm.lds b/board/davinci/da8xxevm/u-boot-spl-da850evm.lds
index 8f04911306..de1c9c6fce 100644
--- a/board/davinci/da8xxevm/u-boot-spl-da850evm.lds
+++ b/board/davinci/da8xxevm/u-boot-spl-da850evm.lds
@@ -36,7 +36,7 @@ SECTIONS
.data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
. = ALIGN(4);
- .u_boot_list : { KEEP(*(SORT(.u_boot_list*))); } >.sram
+ __u_boot_list : { KEEP(*(SORT(__u_boot_list*))); } >.sram
. = ALIGN(4);
.rel.dyn : {
diff --git a/board/qualcomm/dragonboard820c/u-boot.lds b/board/qualcomm/dragonboard820c/u-boot.lds
index dcf8256cec..5251b59fbe 100644
--- a/board/qualcomm/dragonboard820c/u-boot.lds
+++ b/board/qualcomm/dragonboard820c/u-boot.lds
@@ -49,8 +49,8 @@ SECTIONS
. = .;
. = ALIGN(8);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = ALIGN(8);
diff --git a/board/samsung/common/exynos-uboot-spl.lds b/board/samsung/common/exynos-uboot-spl.lds
index 5b32f7feb8..73cd97a1b1 100644
--- a/board/samsung/common/exynos-uboot-spl.lds
+++ b/board/samsung/common/exynos-uboot-spl.lds
@@ -32,8 +32,8 @@ SECTIONS
.data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
} >.sram
. = ALIGN(4);
diff --git a/board/synopsys/iot_devkit/u-boot.lds b/board/synopsys/iot_devkit/u-boot.lds
index d083168705..dca2e2daee 100644
--- a/board/synopsys/iot_devkit/u-boot.lds
+++ b/board/synopsys/iot_devkit/u-boot.lds
@@ -39,8 +39,8 @@ SECTIONS
} > ROM
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
/* Mark RAM's LMA */
. = ALIGN(4);
diff --git a/board/ti/am335x/u-boot.lds b/board/ti/am335x/u-boot.lds
index 03c1d5f73b..087dee8bb2 100644
--- a/board/ti/am335x/u-boot.lds
+++ b/board/ti/am335x/u-boot.lds
@@ -72,8 +72,8 @@ SECTIONS
. = .;
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = ALIGN(4);
diff --git a/board/vscom/baltos/u-boot.lds b/board/vscom/baltos/u-boot.lds
index 315ba5b99a..cb2ee67697 100644
--- a/board/vscom/baltos/u-boot.lds
+++ b/board/vscom/baltos/u-boot.lds
@@ -53,8 +53,8 @@ SECTIONS
. = .;
. = ALIGN(4);
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
. = ALIGN(4);
diff --git a/doc/api/linker_lists.rst b/doc/api/linker_lists.rst
index 7063fdc831..3cd447f187 100644
--- a/doc/api/linker_lists.rst
+++ b/doc/api/linker_lists.rst
@@ -13,7 +13,7 @@ then the corresponding input section name is
::
- .u_boot_list_ + 2_ + @_list + _2_ + @_entry
+ __u_boot_list_ + 2_ + @_list + _2_ + @_entry
and the C variable name is
@@ -23,7 +23,7 @@ and the C variable name is
This ensures uniqueness for both input section and C variable name.
-Note that the names differ only in the first character, "." for the
+Note that the names differ only in the characters, "__" for the
section and "_" for the variable, so that the linker cannot confuse
section and symbol names. From now on, both names will be referred
to as
@@ -63,11 +63,11 @@ iterated at least once.
::
- .u_boot_list_2_array_1
- .u_boot_list_2_array_2_first
- .u_boot_list_2_array_2_second
- .u_boot_list_2_array_2_third
- .u_boot_list_2_array_3
+ __u_boot_list_2_array_1
+ __u_boot_list_2_array_2_first
+ __u_boot_list_2_array_2_second
+ __u_boot_list_2_array_2_third
+ __u_boot_list_2_array_3
If lists must be divided into sublists (e.g. for iterating only on
part of a list), one can simply give the list a name of the form
@@ -129,17 +129,17 @@ the compiler cannot update the alignment of the linker_list item.
In the first case, an 8-byte 'fill' region is added::
- .u_boot_list_2_driver_2_testbus_drv
+ __u_boot_list_2_driver_2_testbus_drv
0x0000000000270018 0x80 test/built-in.o
0x0000000000270018 _u_boot_list_2_driver_2_testbus_drv
- .u_boot_list_2_driver_2_testfdt1_drv
+ __u_boot_list_2_driver_2_testfdt1_drv
0x0000000000270098 0x80 test/built-in.o
0x0000000000270098 _u_boot_list_2_driver_2_testfdt1_drv
*fill* 0x0000000000270118 0x8
- .u_boot_list_2_driver_2_testfdt_drv
+ __u_boot_list_2_driver_2_testfdt_drv
0x0000000000270120 0x80 test/built-in.o
0x0000000000270120 _u_boot_list_2_driver_2_testfdt_drv
- .u_boot_list_2_driver_2_testprobe_drv
+ __u_boot_list_2_driver_2_testprobe_drv
0x00000000002701a0 0x80 test/built-in.o
0x00000000002701a0 _u_boot_list_2_driver_2_testprobe_drv
diff --git a/doc/develop/commands.rst b/doc/develop/commands.rst
index c72d1b0aaa..ede880d248 100644
--- a/doc/develop/commands.rst
+++ b/doc/develop/commands.rst
@@ -169,8 +169,8 @@ by writing in u-boot.lds ($(srctree)/board/boardname/u-boot.lds) these
.. code-block:: c
- .u_boot_list : {
- KEEP(*(SORT(.u_boot_list*)));
+ __u_boot_list : {
+ KEEP(*(SORT(__u_boot_list*)));
}
Writing tests
diff --git a/doc/develop/driver-model/of-plat.rst b/doc/develop/driver-model/of-plat.rst
index 237af38ad4..b454f7be85 100644
--- a/doc/develop/driver-model/of-plat.rst
+++ b/doc/develop/driver-model/of-plat.rst
@@ -707,9 +707,9 @@ Link errors / undefined reference
Sometimes dtoc does not find the problem for you, but something is wrong and
you get a link error, e.g.::
- :(.u_boot_list_2_udevice_2_spl_test5+0x0): undefined reference to
+ :(__u_boot_list_2_udevice_2_spl_test5+0x0): undefined reference to
`_u_boot_list_2_driver_2_sandbox_spl_test'
- /usr/bin/ld: dts/dt-uclass.o:(.u_boot_list_2_uclass_2_misc+0x8):
+ /usr/bin/ld: dts/dt-uclass.o:(__u_boot_list_2_uclass_2_misc+0x8):
undefined reference to `_u_boot_list_2_uclass_driver_2_misc'
The first one indicates that the device cannot find its driver. This means that
diff --git a/include/linker_lists.h b/include/linker_lists.h
index 0575164ce4..d3da9d44e8 100644
--- a/include/linker_lists.h
+++ b/include/linker_lists.h
@@ -70,7 +70,7 @@
#define ll_entry_declare(_type, _name, _list) \
_type _u_boot_list_2_##_list##_2_##_name __aligned(4) \
__attribute__((unused)) \
- __section(".u_boot_list_2_"#_list"_2_"#_name)
+ __section("__u_boot_list_2_"#_list"_2_"#_name)
/**
* ll_entry_declare_list() - Declare a list of link-generated array entries
@@ -93,7 +93,7 @@
#define ll_entry_declare_list(_type, _name, _list) \
_type _u_boot_list_2_##_list##_2_##_name[] __aligned(4) \
__attribute__((unused)) \
- __section(".u_boot_list_2_"#_list"_2_"#_name)
+ __section("__u_boot_list_2_"#_list"_2_"#_name)
/*
* We need a 0-byte-size type for iterator symbols, and the compiler
@@ -110,7 +110,7 @@
* @_list: Name of the list in which this entry is placed
*
* This function returns ``(_type *)`` pointer to the very first entry of a
- * linker-generated array placed into subsection of .u_boot_list section
+ * linker-generated array placed into subsection of __u_boot_list section
* specified by _list argument.
*
* Since this macro defines an array start symbol, its leftmost index
@@ -126,7 +126,7 @@
({ \
static char start[0] __aligned(CONFIG_LINKER_LIST_ALIGN) \
__attribute__((unused)) \
- __section(".u_boot_list_2_"#_list"_1"); \
+ __section("__u_boot_list_2_"#_list"_1"); \
(_type *)&start; \
})
@@ -137,7 +137,7 @@
* (with underscores instead of dots)
*
* This function returns ``(_type *)`` pointer after the very last entry of
- * a linker-generated array placed into subsection of .u_boot_list
+ * a linker-generated array placed into subsection of __u_boot_list
* section specified by _list argument.
*
* Since this macro defines an array end symbol, its leftmost index
@@ -152,7 +152,7 @@
#define ll_entry_end(_type, _list) \
({ \
static char end[0] __aligned(4) __attribute__((unused)) \
- __section(".u_boot_list_2_"#_list"_3"); \
+ __section("__u_boot_list_2_"#_list"_3"); \
(_type *)&end; \
})
/**
@@ -161,7 +161,7 @@
* @_list: Name of the list of which the number of elements is computed
*
* This function returns the number of elements of a linker-generated array
- * placed into subsection of .u_boot_list section specified by _list
+ * placed into subsection of __u_boot_list section specified by _list
* argument. The result is of an unsigned int type.
*
* Example:
@@ -246,7 +246,7 @@
#define ll_start(_type) \
({ \
static char start[0] __aligned(4) __attribute__((unused)) \
- __section(".u_boot_list_1"); \
+ __section("__u_boot_list_1"); \
(_type *)&start; \
})
@@ -269,7 +269,7 @@
#define ll_end(_type) \
({ \
static char end[0] __aligned(4) __attribute__((unused)) \
- __section(".u_boot_list_3"); \
+ __section("__u_boot_list_3"); \
(_type *)&end; \
})
--
2.35.1.1178.g4f1659d476-goog
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v2 05/12] sandbox: Add support for Address Sanitizer
2022-04-14 13:59 [PATCH 00/11] Fuzzing and ASAN for sandbox Andrew Scull
` (3 preceding siblings ...)
2022-04-14 13:59 ` [PATCH v2 04/12] linker_lists: Rename sections to remove . prefix Andrew Scull
@ 2022-04-14 13:59 ` Andrew Scull
2022-04-14 13:59 ` [PATCH v2 06/12] fuzzing_engine: Add fuzzing engine uclass Andrew Scull
` (6 subsequent siblings)
11 siblings, 0 replies; 21+ messages in thread
From: Andrew Scull @ 2022-04-14 13:59 UTC (permalink / raw)
To: u-boot; +Cc: sjg, xypron.glpk, Andrew Scull
Add CONFIG_ASAN to build with the Address Sanitizer. This only works
with the sandbox so the config is likewise dependent. The resulting
executable will have ASAN instrumentation, including the leak detector
that can be disabled with the ASAN_OPTIONS environment variable:
ASAN_OPTIONS=detect_leaks=0 ./u-boot
Since u-boot uses its own dlmalloc, dynamic allocations aren't
automatically instrumented, but stack variables and globals are.
Instrumentation could be added to dlmalloc to poison and unpoison memory
as it is allocated and deallocated, and to introduce redzones between
allocations. Alternatively, the sandbox may be able to play games with
the system allocator and somehow still keep the required memory
abstraction. No effort to address dynamic allocation is made by this
patch.
Signed-off-by: Andrew Scull <ascull@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
Kconfig | 7 +++++++
arch/sandbox/config.mk | 8 ++++++++
configs/sandbox_defconfig | 1 +
3 files changed, 16 insertions(+)
diff --git a/Kconfig b/Kconfig
index 0ee3068b9a..a2577bcce6 100644
--- a/Kconfig
+++ b/Kconfig
@@ -154,6 +154,13 @@ config CC_COVERAGE
Enabling this option will pass "--coverage" to gcc to compile
and link code instrumented for coverage analysis.
+config ASAN
+ bool "Enable AddressSanitizer"
+ depends on SANDBOX
+ help
+ Enables AddressSanitizer to discover out-of-bounds accesses,
+ use-after-free, double-free and memory leaks.
+
config CC_HAS_ASM_INLINE
def_bool $(success,echo 'void foo(void) { asm inline (""); }' | $(CC) -x c - -c -o /dev/null)
diff --git a/arch/sandbox/config.mk b/arch/sandbox/config.mk
index c42de2ff27..d7ce66fb6c 100644
--- a/arch/sandbox/config.mk
+++ b/arch/sandbox/config.mk
@@ -15,7 +15,14 @@ PLATFORM_LIBS += $(shell $(SDL_CONFIG) --libs)
PLATFORM_CPPFLAGS += $(shell $(SDL_CONFIG) --cflags)
endif
+SANITIZERS :=
+ifdef CONFIG_ASAN
+SANITIZERS += -fsanitize=address
+endif
+KBUILD_CFLAGS += $(SANITIZERS)
+
cmd_u-boot__ = $(CC) -o $@ -Wl,-T u-boot.lds $(u-boot-init) \
+ $(SANITIZERS) \
$(LTO_FINAL_LDFLAGS) \
-Wl,--whole-archive \
$(u-boot-main) \
@@ -24,6 +31,7 @@ cmd_u-boot__ = $(CC) -o $@ -Wl,-T u-boot.lds $(u-boot-init) \
$(PLATFORM_LIBS) -Wl,-Map -Wl,u-boot.map
cmd_u-boot-spl = (cd $(obj) && $(CC) -o $(SPL_BIN) -Wl,-T u-boot-spl.lds \
+ $(SANITIZERS) \
$(LTO_FINAL_LDFLAGS) \
$(patsubst $(obj)/%,%,$(u-boot-spl-init)) \
-Wl,--whole-archive \
diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index cb8d590eb6..462a0afb2e 100644
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -1,3 +1,4 @@
+CONFIG_ASAN=y
CONFIG_SYS_TEXT_BASE=0
CONFIG_SYS_MALLOC_LEN=0x2000000
CONFIG_NR_DRAM_BANKS=1
--
2.35.1.1178.g4f1659d476-goog
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v2 06/12] fuzzing_engine: Add fuzzing engine uclass
2022-04-14 13:59 [PATCH 00/11] Fuzzing and ASAN for sandbox Andrew Scull
` (4 preceding siblings ...)
2022-04-14 13:59 ` [PATCH v2 05/12] sandbox: Add support for Address Sanitizer Andrew Scull
@ 2022-04-14 13:59 ` Andrew Scull
2022-04-14 13:59 ` [PATCH v2 07/12] test: fuzz: Add framework for fuzzing Andrew Scull
` (5 subsequent siblings)
11 siblings, 0 replies; 21+ messages in thread
From: Andrew Scull @ 2022-04-14 13:59 UTC (permalink / raw)
To: u-boot; +Cc: sjg, xypron.glpk, Andrew Scull
This new class of device will provide fuzzing inputs from a fuzzing
engine.
Signed-off-by: Andrew Scull <ascull@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
drivers/Kconfig | 2 ++
drivers/Makefile | 1 +
drivers/fuzz/Kconfig | 9 +++++
drivers/fuzz/Makefile | 7 ++++
drivers/fuzz/fuzzing_engine-uclass.c | 28 +++++++++++++++
include/dm/uclass-id.h | 1 +
include/fuzzing_engine.h | 51 ++++++++++++++++++++++++++++
7 files changed, 99 insertions(+)
create mode 100644 drivers/fuzz/Kconfig
create mode 100644 drivers/fuzz/Makefile
create mode 100644 drivers/fuzz/fuzzing_engine-uclass.c
create mode 100644 include/fuzzing_engine.h
diff --git a/drivers/Kconfig b/drivers/Kconfig
index b26ca8cf70..8b6fead351 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -40,6 +40,8 @@ source "drivers/fastboot/Kconfig"
source "drivers/firmware/Kconfig"
+source "drivers/fuzz/Kconfig"
+
source "drivers/fpga/Kconfig"
source "drivers/gpio/Kconfig"
diff --git a/drivers/Makefile b/drivers/Makefile
index 4e7cf28440..b66d72d361 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -113,6 +113,7 @@ obj-$(CONFIG_W1) += w1/
obj-$(CONFIG_W1_EEPROM) += w1-eeprom/
obj-$(CONFIG_MACH_PIC32) += ddr/microchip/
+obj-$(CONFIG_FUZZ) += fuzz/
obj-$(CONFIG_DM_HWSPINLOCK) += hwspinlock/
obj-$(CONFIG_DM_RNG) += rng/
endif
diff --git a/drivers/fuzz/Kconfig b/drivers/fuzz/Kconfig
new file mode 100644
index 0000000000..a03120f63a
--- /dev/null
+++ b/drivers/fuzz/Kconfig
@@ -0,0 +1,9 @@
+config DM_FUZZING_ENGINE
+ bool "Driver support for fuzzing engine devices"
+ depends on DM
+ help
+ Enable driver model for fuzzing engine devices. This interface is
+ used to get successive inputs from a fuzzing engine that aims to
+ explore different code paths in a fuzz test. The fuzzing engine may
+ be instrumenting the execution in order to more effectively generate
+ inputs that explore different code paths.
diff --git a/drivers/fuzz/Makefile b/drivers/fuzz/Makefile
new file mode 100644
index 0000000000..acd894999c
--- /dev/null
+++ b/drivers/fuzz/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (c) 2022 Google, Inc.
+# Written by Andrew Scull <ascull@google.com>
+#
+
+obj-$(CONFIG_DM_FUZZING_ENGINE) += fuzzing_engine-uclass.o
diff --git a/drivers/fuzz/fuzzing_engine-uclass.c b/drivers/fuzz/fuzzing_engine-uclass.c
new file mode 100644
index 0000000000..b16f1c4cfb
--- /dev/null
+++ b/drivers/fuzz/fuzzing_engine-uclass.c
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2022 Google, Inc.
+ * Written by Andrew Scull <ascull@google.com>
+ */
+
+#define LOG_CATEGORY UCLASS_FUZZING_ENGINE
+
+#include <common.h>
+#include <dm.h>
+#include <fuzzing_engine.h>
+
+int dm_fuzzing_engine_get_input(struct udevice *dev,
+ const uint8_t **data,
+ size_t *size)
+{
+ const struct dm_fuzzing_engine_ops *ops = device_get_ops(dev);
+
+ if (!ops->get_input)
+ return -ENOSYS;
+
+ return ops->get_input(dev, data, size);
+}
+
+UCLASS_DRIVER(fuzzing_engine) = {
+ .name = "fuzzing_engine",
+ .id = UCLASS_FUZZING_ENGINE,
+};
diff --git a/include/dm/uclass-id.h b/include/dm/uclass-id.h
index 0e26e1d138..b9411f1d59 100644
--- a/include/dm/uclass-id.h
+++ b/include/dm/uclass-id.h
@@ -53,6 +53,7 @@ enum uclass_id {
UCLASS_ETH, /* Ethernet device */
UCLASS_ETH_PHY, /* Ethernet PHY device */
UCLASS_FIRMWARE, /* Firmware */
+ UCLASS_FUZZING_ENGINE, /* Fuzzing engine */
UCLASS_FS_FIRMWARE_LOADER, /* Generic loader */
UCLASS_GPIO, /* Bank of general-purpose I/O pins */
UCLASS_HASH, /* Hash device */
diff --git a/include/fuzzing_engine.h b/include/fuzzing_engine.h
new file mode 100644
index 0000000000..357346e93d
--- /dev/null
+++ b/include/fuzzing_engine.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2022 Google, Inc.
+ * Written by Andrew Scull <ascull@google.com>
+ */
+
+#ifndef __FUZZING_ENGINE_H
+#define __FUZZING_ENGINE_H
+
+struct udevice;
+
+/**
+ * dm_fuzzing_engine_get_input() - get an input from the fuzzing engine device
+ *
+ * The function will return a pointer to the input data and the size of the
+ * data pointed to. The pointer will remain valid until the next invocation of
+ * this function.
+ *
+ * @dev: fuzzing engine device
+ * @data: output pointer to input data
+ * @size output size of input data
+ * Return: 0 if OK, -ve on error
+ */
+int dm_fuzzing_engine_get_input(struct udevice *dev,
+ const uint8_t **data,
+ size_t *size);
+
+/**
+ * struct dm_fuzzing_engine_ops - operations for the fuzzing engine uclass
+ *
+ * This contains the functions implemented by a fuzzing engine device.
+ */
+struct dm_fuzzing_engine_ops {
+ /**
+ * @get_input() - get an input
+ *
+ * The function will return a pointer to the input data and the size of
+ * the data pointed to. The pointer will remain valid until the next
+ * invocation of this function.
+ *
+ * @get_input.dev: fuzzing engine device
+ * @get_input.data: output pointer to input data
+ * @get_input.size output size of input data
+ * @get_input.Return: 0 if OK, -ve on error
+ */
+ int (*get_input)(struct udevice *dev,
+ const uint8_t **data,
+ size_t *size);
+};
+
+#endif /* __FUZZING_ENGINE_H */
--
2.35.1.1178.g4f1659d476-goog
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v2 07/12] test: fuzz: Add framework for fuzzing
2022-04-14 13:59 [PATCH 00/11] Fuzzing and ASAN for sandbox Andrew Scull
` (5 preceding siblings ...)
2022-04-14 13:59 ` [PATCH v2 06/12] fuzzing_engine: Add fuzzing engine uclass Andrew Scull
@ 2022-04-14 13:59 ` Andrew Scull
2022-04-14 13:59 ` [PATCH v2 08/12] sandbox: Decouple program entry from sandbox init Andrew Scull
` (4 subsequent siblings)
11 siblings, 0 replies; 21+ messages in thread
From: Andrew Scull @ 2022-04-14 13:59 UTC (permalink / raw)
To: u-boot; +Cc: sjg, xypron.glpk, Andrew Scull
Add the basic infrastructure for declaring fuzz tests and a command to
invoke them.
Signed-off-by: Andrew Scull <ascull@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
Kconfig | 9 +++++
include/test/fuzz.h | 51 +++++++++++++++++++++++++++
test/Makefile | 1 +
test/fuzz/Makefile | 7 ++++
test/fuzz/cmd_fuzz.c | 82 ++++++++++++++++++++++++++++++++++++++++++++
5 files changed, 150 insertions(+)
create mode 100644 include/test/fuzz.h
create mode 100644 test/fuzz/Makefile
create mode 100644 test/fuzz/cmd_fuzz.c
diff --git a/Kconfig b/Kconfig
index a2577bcce6..1d472a7862 100644
--- a/Kconfig
+++ b/Kconfig
@@ -161,6 +161,15 @@ config ASAN
Enables AddressSanitizer to discover out-of-bounds accesses,
use-after-free, double-free and memory leaks.
+config FUZZ
+ bool "Enable fuzzing"
+ depends on CC_IS_CLANG
+ depends on DM_FUZZING_ENGINE
+ select ASAN
+ help
+ Enables the fuzzing infrastructure to generate fuzzing data and run
+ fuzz tests.
+
config CC_HAS_ASM_INLINE
def_bool $(success,echo 'void foo(void) { asm inline (""); }' | $(CC) -x c - -c -o /dev/null)
diff --git a/include/test/fuzz.h b/include/test/fuzz.h
new file mode 100644
index 0000000000..d4c57540eb
--- /dev/null
+++ b/include/test/fuzz.h
@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2022 Google, Inc.
+ * Written by Andrew Scull <ascull@google.com>
+ */
+
+#ifndef __TEST_FUZZ_H
+#define __TEST_FUZZ_H
+
+#include <linker_lists.h>
+#include <linux/types.h>
+
+/**
+ * struct fuzz_test - Information about a fuzz test
+ *
+ * @name: Name of fuzz test
+ * @func: Function to call to perform fuzz test on an input
+ * @flags: Flags indicate pre-conditions for fuzz test
+ */
+struct fuzz_test {
+ const char *name;
+ int (*func)(const uint8_t * data, size_t size);
+ int flags;
+};
+
+/**
+ * FUZZ_TEST() - register a fuzz test
+ *
+ * The fuzz test function must return 0 as other values are reserved for future
+ * use.
+ *
+ * @_name: the name of the fuzz test function
+ * @_flags: an integer field that can be evaluated by the fuzzer
+ * implementation
+ */
+#define FUZZ_TEST(_name, _flags) \
+ ll_entry_declare(struct fuzz_test, _name, fuzz_tests) = { \
+ .name = #_name, \
+ .func = _name, \
+ .flags = _flags, \
+ }
+
+/** Get the start of the list of fuzz tests */
+#define FUZZ_TEST_START() \
+ ll_entry_start(struct fuzz_test, fuzz_tests)
+
+/** Get the number of elements in the list of fuzz tests */
+#define FUZZ_TEST_COUNT() \
+ ll_entry_count(struct fuzz_test, fuzz_tests)
+
+#endif /* __TEST_FUZZ_H */
diff --git a/test/Makefile b/test/Makefile
index b3b2902e2e..bb2b0b5c73 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_$(SPL_)CMDLINE) += cmd_ut.o
obj-$(CONFIG_$(SPL_)CMDLINE) += command_ut.o
obj-$(CONFIG_$(SPL_)UT_COMPRESSION) += compression.o
obj-y += dm/
+obj-$(CONFIG_FUZZ) += fuzz/
obj-$(CONFIG_$(SPL_)CMDLINE) += print_ut.o
obj-$(CONFIG_$(SPL_)CMDLINE) += str_ut.o
obj-$(CONFIG_UT_TIME) += time_ut.o
diff --git a/test/fuzz/Makefile b/test/fuzz/Makefile
new file mode 100644
index 0000000000..03eeeeb497
--- /dev/null
+++ b/test/fuzz/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0+
+#
+# Copyright (c) 2022 Google, Inc.
+# Written by Andrew Scull <ascull@google.com>
+#
+
+obj-$(CONFIG_$(SPL_)CMDLINE) += cmd_fuzz.o
diff --git a/test/fuzz/cmd_fuzz.c b/test/fuzz/cmd_fuzz.c
new file mode 100644
index 0000000000..0cc01dc199
--- /dev/null
+++ b/test/fuzz/cmd_fuzz.c
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2022 Google, Inc.
+ * Written by Andrew Scull <ascull@google.com>
+ */
+
+#include <command.h>
+#include <common.h>
+#include <dm.h>
+#include <fuzzing_engine.h>
+#include <test/fuzz.h>
+
+static struct fuzz_test *find_fuzz_test(const char *name)
+{
+ struct fuzz_test *fuzzer = FUZZ_TEST_START();
+ size_t count = FUZZ_TEST_COUNT();
+ size_t i;
+
+ for (i = 0; i < count; ++i) {
+ if (strcmp(name, fuzzer->name) == 0)
+ return fuzzer;
+ ++fuzzer;
+ }
+
+ return NULL;
+}
+
+static struct udevice *find_fuzzing_engine(void)
+{
+ struct udevice *dev;
+
+ if (uclass_first_device(UCLASS_FUZZING_ENGINE, &dev))
+ return NULL;
+
+ return dev;
+}
+
+static int do_fuzz(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
+{
+ struct fuzz_test *fuzzer;
+ struct udevice *dev;
+
+ if (argc != 2)
+ return CMD_RET_USAGE;
+
+ fuzzer = find_fuzz_test(argv[1]);
+ if (!fuzzer) {
+ printf("Could not find fuzzer: %s\n", argv[1]);
+ return 1;
+ }
+
+ dev = find_fuzzing_engine();
+ if (!dev) {
+ puts("No fuzzing engine available\n");
+ return 1;
+ }
+
+ while (1) {
+ const uint8_t *data;
+ size_t size;
+
+ if (dm_fuzzing_engine_get_input(dev, &data, &size)) {
+ puts("Fuzzing engine failed\n");
+ return 1;
+ }
+
+ fuzzer->func(data, size);
+ }
+
+ return 1;
+}
+
+#ifdef CONFIG_SYS_LONGHELP
+static char fuzz_help_text[] =
+ "[fuzz-test-name] - execute the named fuzz test\n"
+ ;
+#endif /* CONFIG_SYS_LONGHELP */
+
+U_BOOT_CMD(
+ fuzz, CONFIG_SYS_MAXARGS, 1, do_fuzz,
+ "fuzz tests", fuzz_help_text
+);
--
2.35.1.1178.g4f1659d476-goog
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v2 08/12] sandbox: Decouple program entry from sandbox init
2022-04-14 13:59 [PATCH 00/11] Fuzzing and ASAN for sandbox Andrew Scull
` (6 preceding siblings ...)
2022-04-14 13:59 ` [PATCH v2 07/12] test: fuzz: Add framework for fuzzing Andrew Scull
@ 2022-04-14 13:59 ` Andrew Scull
2022-04-14 13:59 ` [PATCH v2 09/12] sandbox: Add libfuzzer integration Andrew Scull
` (3 subsequent siblings)
11 siblings, 0 replies; 21+ messages in thread
From: Andrew Scull @ 2022-04-14 13:59 UTC (permalink / raw)
To: u-boot; +Cc: sjg, xypron.glpk, Andrew Scull
Move the program's entry point to os.c, in preparation for a separate
fuzzing entry point to be added.
Signed-off-by: Andrew Scull <ascull@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
arch/sandbox/cpu/os.c | 6 ++++++
arch/sandbox/cpu/start.c | 2 +-
arch/sandbox/include/asm/main.h | 18 ++++++++++++++++++
3 files changed, 25 insertions(+), 1 deletion(-)
create mode 100644 arch/sandbox/include/asm/main.h
diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c
index 72a72029f2..5ea4135741 100644
--- a/arch/sandbox/cpu/os.c
+++ b/arch/sandbox/cpu/os.c
@@ -27,6 +27,7 @@
#include <linux/types.h>
#include <asm/getopt.h>
+#include <asm/main.h>
#include <asm/sections.h>
#include <asm/state.h>
#include <os.h>
@@ -1000,3 +1001,8 @@ void os_relaunch(char *argv[])
execv(argv[0], argv);
os_exit(1);
}
+
+int main(int argc, char *argv[])
+{
+ return sandbox_main(argc, argv);
+}
diff --git a/arch/sandbox/cpu/start.c b/arch/sandbox/cpu/start.c
index 6bcb8ffa28..40430c8c11 100644
--- a/arch/sandbox/cpu/start.c
+++ b/arch/sandbox/cpu/start.c
@@ -453,7 +453,7 @@ void sandbox_reset(void)
os_relaunch(os_argv);
}
-int main(int argc, char *argv[])
+int sandbox_main(int argc, char *argv[])
{
struct sandbox_state *state;
void * text_base;
diff --git a/arch/sandbox/include/asm/main.h b/arch/sandbox/include/asm/main.h
new file mode 100644
index 0000000000..7a2f0d3a8d
--- /dev/null
+++ b/arch/sandbox/include/asm/main.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2022 Google, Inc.
+ * Written by Andrew Scull <ascull@google.com>
+ */
+
+#ifndef __ASM_SANDBOX_MAIN_H
+#define __ASM_SANDBOX_MAIN_H
+
+/**
+ * sandbox_main() - main entrypoint for sandbox
+ *
+ * @argc: the number of arguments passed to the program
+ * @argv: array of argc+1 pointers, of which the last one is null
+ */
+int sandbox_main(int argc, char *argv[]);
+
+#endif /* __ASM_SANDBOX_MAIN_H */
--
2.35.1.1178.g4f1659d476-goog
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v2 09/12] sandbox: Add libfuzzer integration
2022-04-14 13:59 [PATCH 00/11] Fuzzing and ASAN for sandbox Andrew Scull
` (7 preceding siblings ...)
2022-04-14 13:59 ` [PATCH v2 08/12] sandbox: Decouple program entry from sandbox init Andrew Scull
@ 2022-04-14 13:59 ` Andrew Scull
2022-04-14 13:59 ` [PATCH v2 10/12] sandbox: Implement fuzzing engine driver Andrew Scull
` (2 subsequent siblings)
11 siblings, 0 replies; 21+ messages in thread
From: Andrew Scull @ 2022-04-14 13:59 UTC (permalink / raw)
To: u-boot; +Cc: sjg, xypron.glpk, Andrew Scull
Add an implementation of LLVMFuzzerTestOneInput() that starts the
sandbox on a secondary thread and exposes a function to synchronize the
generation of fuzzing inputs with their consumption by the sandbox.
Signed-off-by: Andrew Scull <ascull@google.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
arch/sandbox/config.mk | 3 +
arch/sandbox/cpu/os.c | 70 +++++++++++++++++++++++
arch/sandbox/include/asm/fuzzing_engine.h | 25 ++++++++
3 files changed, 98 insertions(+)
create mode 100644 arch/sandbox/include/asm/fuzzing_engine.h
diff --git a/arch/sandbox/config.mk b/arch/sandbox/config.mk
index d7ce66fb6c..5fbe1f50e3 100644
--- a/arch/sandbox/config.mk
+++ b/arch/sandbox/config.mk
@@ -19,6 +19,9 @@ SANITIZERS :=
ifdef CONFIG_ASAN
SANITIZERS += -fsanitize=address
endif
+ifdef CONFIG_FUZZ
+SANITIZERS += -fsanitize=fuzzer
+endif
KBUILD_CFLAGS += $(SANITIZERS)
cmd_u-boot__ = $(CC) -o $@ -Wl,-T u-boot.lds $(u-boot-init) \
diff --git a/arch/sandbox/cpu/os.c b/arch/sandbox/cpu/os.c
index 5ea4135741..cd45d7b6b6 100644
--- a/arch/sandbox/cpu/os.c
+++ b/arch/sandbox/cpu/os.c
@@ -8,6 +8,7 @@
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
+#include <pthread.h>
#include <getopt.h>
#include <setjmp.h>
#include <signal.h>
@@ -26,6 +27,7 @@
#include <linux/compiler_attributes.h>
#include <linux/types.h>
+#include <asm/fuzzing_engine.h>
#include <asm/getopt.h>
#include <asm/main.h>
#include <asm/sections.h>
@@ -1002,7 +1004,75 @@ void os_relaunch(char *argv[])
os_exit(1);
}
+
+#ifdef CONFIG_FUZZ
+static void *fuzzer_thread(void * ptr)
+{
+ char cmd[64];
+ char *argv[5] = {"./u-boot", "-T", "-c", cmd, NULL};
+ const char *fuzz_test;
+
+ /* Find which test to run from an environment variable. */
+ fuzz_test = getenv("UBOOT_SB_FUZZ_TEST");
+ if (!fuzz_test)
+ os_abort();
+
+ snprintf(cmd, sizeof(cmd), "fuzz %s", fuzz_test);
+
+ sandbox_main(4, argv);
+ os_abort();
+ return NULL;
+}
+
+static bool fuzzer_initialized = false;
+static pthread_mutex_t fuzzer_mutex = PTHREAD_MUTEX_INITIALIZER;
+static pthread_cond_t fuzzer_cond = PTHREAD_COND_INITIALIZER;
+static const uint8_t *fuzzer_data;
+static size_t fuzzer_size;
+
+int sandbox_fuzzing_engine_get_input(const uint8_t **data, size_t *size)
+{
+ if (!fuzzer_initialized)
+ return -ENOSYS;
+
+ /* Tell the main thread we need new inputs then wait for them. */
+ pthread_mutex_lock(&fuzzer_mutex);
+ pthread_cond_signal(&fuzzer_cond);
+ pthread_cond_wait(&fuzzer_cond, &fuzzer_mutex);
+ *data = fuzzer_data;
+ *size = fuzzer_size;
+ pthread_mutex_unlock(&fuzzer_mutex);
+ return 0;
+}
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+ static pthread_t tid;
+
+ pthread_mutex_lock(&fuzzer_mutex);
+
+ /* Initialize the sandbox on another thread. */
+ if (!fuzzer_initialized) {
+ fuzzer_initialized = true;
+ if (pthread_create(&tid, NULL, fuzzer_thread, NULL))
+ os_abort();
+ pthread_cond_wait(&fuzzer_cond, &fuzzer_mutex);
+ }
+
+ /* Hand over the input. */
+ fuzzer_data = data;
+ fuzzer_size = size;
+ pthread_cond_signal(&fuzzer_cond);
+
+ /* Wait for the inputs to be finished with. */
+ pthread_cond_wait(&fuzzer_cond, &fuzzer_mutex);
+ pthread_mutex_unlock(&fuzzer_mutex);
+
+ return 0;
+}
+#else
int main(int argc, char *argv[])
{
return sandbox_main(argc, argv);
}
+#endif
diff --git a/arch/sandbox/include/asm/fuzzing_engine.h b/arch/sandbox/include/asm/fuzzing_engine.h
new file mode 100644
index 0000000000..cf6396363b
--- /dev/null
+++ b/arch/sandbox/include/asm/fuzzing_engine.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2022 Google, Inc.
+ * Written by Andrew Scull <ascull@google.com>
+ */
+
+#ifndef __ASM_FUZZING_ENGINE_H
+#define __ASM_FUZZING_ENGINE_H
+
+/** Function to get fuzzing engine input data. */
+/**
+ * sandbox_fuzzing_engine_get_input() - get an input from the sandbox fuzzing
+ * engine
+ *
+ * The function will return a pointer to the input data and the size of the
+ * data pointed to. The pointer will remain valid until the next invocation of
+ * this function.
+ *
+ * @data: output pointer to input data
+ * @size output size of input data
+ * Return: 0 if OK, -ve on error
+ */
+int sandbox_fuzzing_engine_get_input(const uint8_t **data, size_t *size);
+
+#endif /* __ASM_FUZZING_ENGINE_H */
--
2.35.1.1178.g4f1659d476-goog
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v2 10/12] sandbox: Implement fuzzing engine driver
2022-04-14 13:59 [PATCH 00/11] Fuzzing and ASAN for sandbox Andrew Scull
` (8 preceding siblings ...)
2022-04-14 13:59 ` [PATCH v2 09/12] sandbox: Add libfuzzer integration Andrew Scull
@ 2022-04-14 13:59 ` Andrew Scull
2022-04-14 13:59 ` [PATCH v2 11/12] fuzz: virtio: Add fuzzer for vring Andrew Scull
2022-04-14 13:59 ` [PATCH v2 12/12] virtio_ring: Reduce logging noise Andrew Scull
11 siblings, 0 replies; 21+ messages in thread
From: Andrew Scull @ 2022-04-14 13:59 UTC (permalink / raw)
To: u-boot; +Cc: sjg, xypron.glpk, Andrew Scull
Add a fuzzing engine driver for the sandbox to take inputs from
libfuzzer and expose them to the fuzz tests.
Signed-off-by: Andrew Scull <ascull@google.com>
---
arch/Kconfig | 2 ++
arch/sandbox/dts/test.dts | 4 +++
drivers/fuzz/Kconfig | 16 +++++++++---
drivers/fuzz/Makefile | 1 +
drivers/fuzz/sandbox_fuzzing_engine.c | 35 +++++++++++++++++++++++++++
5 files changed, 54 insertions(+), 4 deletions(-)
create mode 100644 drivers/fuzz/sandbox_fuzzing_engine.c
diff --git a/arch/Kconfig b/arch/Kconfig
index 156567ed16..69f86c2f73 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -137,6 +137,7 @@ config SANDBOX
select BZIP2
select CMD_POWEROFF
select DM
+ select DM_FUZZING_ENGINE
select DM_GPIO
select DM_I2C
select DM_KEYBOARD
@@ -172,6 +173,7 @@ config SANDBOX
imply CRC32_VERIFY
imply FAT_WRITE
imply FIRMWARE
+ imply FUZZING_ENGINE_SANDBOX
imply HASH_VERIFY
imply LZMA
imply TEE
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index 05c1cd5e1a..43908f3610 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -74,6 +74,10 @@
};
};
+ fuzzing-engine {
+ compatible = "sandbox,fuzzing-engine";
+ };
+
reboot-mode0 {
compatible = "reboot-mode-gpio";
gpios = <&gpio_c 0 GPIO_ACTIVE_HIGH>, <&gpio_c 1 GPIO_ACTIVE_HIGH>;
diff --git a/drivers/fuzz/Kconfig b/drivers/fuzz/Kconfig
index a03120f63a..6311385222 100644
--- a/drivers/fuzz/Kconfig
+++ b/drivers/fuzz/Kconfig
@@ -3,7 +3,15 @@ config DM_FUZZING_ENGINE
depends on DM
help
Enable driver model for fuzzing engine devices. This interface is
- used to get successive inputs from a fuzzing engine that aims to
- explore different code paths in a fuzz test. The fuzzing engine may
- be instrumenting the execution in order to more effectively generate
- inputs that explore different code paths.
+ used to get fuzzing inputs from a fuzzing engine.
+
+if DM_FUZZING_ENGINE
+
+config FUZZING_ENGINE_SANDBOX
+ bool "Sanbox fuzzing engine"
+ depends on SANDBOX
+ default y
+ help
+ Enable fuzzing engine for sandbox.
+
+endif
diff --git a/drivers/fuzz/Makefile b/drivers/fuzz/Makefile
index acd894999c..073743ba94 100644
--- a/drivers/fuzz/Makefile
+++ b/drivers/fuzz/Makefile
@@ -5,3 +5,4 @@
#
obj-$(CONFIG_DM_FUZZING_ENGINE) += fuzzing_engine-uclass.o
+obj-$(CONFIG_FUZZING_ENGINE_SANDBOX) += sandbox_fuzzing_engine.o
diff --git a/drivers/fuzz/sandbox_fuzzing_engine.c b/drivers/fuzz/sandbox_fuzzing_engine.c
new file mode 100644
index 0000000000..ebb938e5ba
--- /dev/null
+++ b/drivers/fuzz/sandbox_fuzzing_engine.c
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2022 Google, Inc.
+ * Written by Andrew Scull <ascull@google.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <fuzzing_engine.h>
+#include <asm/fuzzing_engine.h>
+
+static int get_input(struct udevice *dev,
+ const uint8_t **data,
+ size_t *size)
+{
+ return sandbox_fuzzing_engine_get_input(data, size);
+}
+
+static const struct dm_fuzzing_engine_ops sandbox_fuzzing_engine_ops = {
+ .get_input = get_input,
+};
+
+static const struct udevice_id sandbox_fuzzing_engine_match[] = {
+ {
+ .compatible = "sandbox,fuzzing-engine",
+ },
+ {},
+};
+
+U_BOOT_DRIVER(sandbox_fuzzing_engine) = {
+ .name = "sandbox-fuzzing-engine",
+ .id = UCLASS_FUZZING_ENGINE,
+ .of_match = sandbox_fuzzing_engine_match,
+ .ops = &sandbox_fuzzing_engine_ops,
+};
--
2.35.1.1178.g4f1659d476-goog
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v2 11/12] fuzz: virtio: Add fuzzer for vring
2022-04-14 13:59 [PATCH 00/11] Fuzzing and ASAN for sandbox Andrew Scull
` (9 preceding siblings ...)
2022-04-14 13:59 ` [PATCH v2 10/12] sandbox: Implement fuzzing engine driver Andrew Scull
@ 2022-04-14 13:59 ` Andrew Scull
2022-04-14 13:59 ` [PATCH v2 12/12] virtio_ring: Reduce logging noise Andrew Scull
11 siblings, 0 replies; 21+ messages in thread
From: Andrew Scull @ 2022-04-14 13:59 UTC (permalink / raw)
To: u-boot; +Cc: sjg, xypron.glpk, Andrew Scull
Add a fuzzer to test the vring handling code against unexpected
mutations from the virtio device.
After building the sandbox with CONFIG_FUZZ=y, the fuzzer can be invoked
with by:
UBOOT_SB_FUZZ_TEST=fuzz_vring ./u-boot
This fuzzer finds unvalidated inputs in the vring driver that allow a
buggy or malicious device to make the driver chase wild pointers.
Signed-off-by: Andrew Scull <ascull@google.com>
---
test/fuzz/Makefile | 1 +
test/fuzz/virtio.c | 72 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 73 insertions(+)
create mode 100644 test/fuzz/virtio.c
diff --git a/test/fuzz/Makefile b/test/fuzz/Makefile
index 03eeeeb497..663b79ce80 100644
--- a/test/fuzz/Makefile
+++ b/test/fuzz/Makefile
@@ -5,3 +5,4 @@
#
obj-$(CONFIG_$(SPL_)CMDLINE) += cmd_fuzz.o
+obj-$(CONFIG_VIRTIO_SANDBOX) += virtio.o
diff --git a/test/fuzz/virtio.c b/test/fuzz/virtio.c
new file mode 100644
index 0000000000..e5363d5638
--- /dev/null
+++ b/test/fuzz/virtio.c
@@ -0,0 +1,72 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2022 Google, Inc.
+ * Written by Andrew Scull <ascull@google.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <virtio.h>
+#include <virtio_ring.h>
+#include <test/fuzz.h>
+
+static int fuzz_vring(const uint8_t *data, size_t size)
+{
+ struct udevice *bus, *dev;
+ struct virtio_dev_priv *uc_priv;
+ struct virtqueue *vq;
+ struct virtio_sg sg[2];
+ struct virtio_sg *sgs[2];
+ unsigned int len;
+ u8 buffer[2][32];
+
+ /* hackily hardcode vring sizes */
+ size_t num = 4;
+ size_t desc_size = (sizeof(struct vring_desc) * num);
+ size_t avail_size = (3 + num) * sizeof(u16);
+ size_t used_size = (3 * sizeof(u16)) + (sizeof(struct vring_used_elem) * num);
+
+ if (size < (desc_size + avail_size + used_size))
+ return 0;
+
+ /* check probe success */
+ if (uclass_first_device(UCLASS_VIRTIO, &bus) || !bus)
+ panic("Could not find virtio bus\n");
+
+ /* check the child virtio-rng device is bound */
+ if (device_find_first_child(bus, &dev) || !dev)
+ panic("Could not find virtio device\n");
+
+ /*
+ * fake the virtio device probe by filling in uc_priv->vdev
+ * which is used by virtio_find_vqs/virtio_del_vqs.
+ */
+ uc_priv = dev_get_uclass_priv(bus);
+ uc_priv->vdev = dev;
+
+ /* prepare the scatter-gather buffer */
+ sg[0].addr = buffer[0];
+ sg[0].length = sizeof(buffer[0]);
+ sg[1].addr = buffer[1];
+ sg[1].length = sizeof(buffer[1]);
+ sgs[0] = &sg[0];
+ sgs[1] = &sg[1];
+
+ if (virtio_find_vqs(dev, 1, &vq))
+ panic("Could not find vqs\n");
+ if (virtqueue_add(vq, sgs, 0, 1))
+ panic("Could not add to virtqueue\n");
+ /* Simulate device writing to vring */
+ memcpy(vq->vring.desc, data, desc_size);
+ memcpy(vq->vring.avail, data + desc_size, avail_size);
+ memcpy(vq->vring.used, data + desc_size + avail_size, used_size);
+ /* Make sure there is a response */
+ if (vq->vring.used->idx == 0)
+ vq->vring.used->idx = 1;
+ virtqueue_get_buf(vq, &len);
+ if (virtio_del_vqs(dev))
+ panic("Could not delete vqs\n");
+
+ return 0;
+}
+FUZZ_TEST(fuzz_vring, 0);
--
2.35.1.1178.g4f1659d476-goog
^ permalink raw reply related [flat|nested] 21+ messages in thread
* [PATCH v2 12/12] virtio_ring: Reduce logging noise
2022-04-14 13:59 [PATCH 00/11] Fuzzing and ASAN for sandbox Andrew Scull
` (10 preceding siblings ...)
2022-04-14 13:59 ` [PATCH v2 11/12] fuzz: virtio: Add fuzzer for vring Andrew Scull
@ 2022-04-14 13:59 ` Andrew Scull
11 siblings, 0 replies; 21+ messages in thread
From: Andrew Scull @ 2022-04-14 13:59 UTC (permalink / raw)
To: u-boot; +Cc: sjg, xypron.glpk, Andrew Scull
Demote logs about problems with the vrings to debug level rather than
always logging. This reduces noise from the logs, especially in the fuzz
test where these cases get reached frequently.
Signed-off-by: Andrew Scull <ascull@google.com>
---
drivers/virtio/virtio_ring.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 383d574cb0..b369bf1dc2 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -197,13 +197,13 @@ void *virtqueue_get_buf(struct virtqueue *vq, unsigned int *len)
}
if (unlikely(i >= vq->vring.num)) {
- printf("(%s.%d): id %u out of range\n",
+ debug("(%s.%d): id %u out of range\n",
vq->vdev->name, vq->index, i);
return NULL;
}
if (unlikely(!vq->vring_desc_shadow[i].chain_head)) {
- printf("(%s.%d): id %u is not a head\n",
+ debug("(%s.%d): id %u is not a head\n",
vq->vdev->name, vq->index, i);
return NULL;
}
--
2.35.1.1178.g4f1659d476-goog
^ permalink raw reply related [flat|nested] 21+ messages in thread
* Re: [PATCH v2 03/12] sandbox: Migrate getopt section to linker list
2022-04-14 13:59 ` [PATCH v2 03/12] sandbox: Migrate getopt section to linker list Andrew Scull
@ 2022-04-29 15:11 ` Tom Rini
2022-05-02 16:24 ` Andrew Scull
0 siblings, 1 reply; 21+ messages in thread
From: Tom Rini @ 2022-04-29 15:11 UTC (permalink / raw)
To: Andrew Scull; +Cc: u-boot, sjg, xypron.glpk
[-- Attachment #1: Type: text/plain, Size: 1004 bytes --]
On Thu, Apr 14, 2022 at 01:59:32PM +0000, Andrew Scull wrote:
> Use the common infrastructure to create a linker list of the sandbox
> command line flags rather than using a custom method.
>
> The list is changed from containing pointers to containing structs and
> the uses are updated accordingly.
>
> Signed-off-by: Andrew Scull <ascull@google.com>
> Reviewed-by: Simon Glass <sjg@chromium.org>
> ---
> arch/sandbox/cpu/os.c | 21 ++++++++++-----------
> arch/sandbox/cpu/start.c | 10 +++++-----
> arch/sandbox/cpu/u-boot-spl.lds | 6 ------
> arch/sandbox/cpu/u-boot.lds | 6 ------
> arch/sandbox/include/asm/getopt.h | 19 ++++++++++++-------
> arch/sandbox/include/asm/sections.h | 25 -------------------------
> 6 files changed, 27 insertions(+), 60 deletions(-)
This particular test causes all of the pytest infrastructure to fail. I
believe "make qcheck" will show this, even, for a possibly easier
reproducer.
--
Tom
[-- Attachment #2: signature.asc --]
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^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v2 03/12] sandbox: Migrate getopt section to linker list
2022-04-29 15:11 ` Tom Rini
@ 2022-05-02 16:24 ` Andrew Scull
2022-05-02 16:27 ` Tom Rini
0 siblings, 1 reply; 21+ messages in thread
From: Andrew Scull @ 2022-05-02 16:24 UTC (permalink / raw)
To: Tom Rini; +Cc: U-Boot Mailing List, Simon Glass, Heinrich Schuchardt
On Fri, 29 Apr 2022 at 08:11, Tom Rini <trini@konsulko.com> wrote:
>
> On Thu, Apr 14, 2022 at 01:59:32PM +0000, Andrew Scull wrote:
>
> > Use the common infrastructure to create a linker list of the sandbox
> > command line flags rather than using a custom method.
> >
> > The list is changed from containing pointers to containing structs and
> > the uses are updated accordingly.
> >
> > Signed-off-by: Andrew Scull <ascull@google.com>
> > Reviewed-by: Simon Glass <sjg@chromium.org>
> > ---
> > arch/sandbox/cpu/os.c | 21 ++++++++++-----------
> > arch/sandbox/cpu/start.c | 10 +++++-----
> > arch/sandbox/cpu/u-boot-spl.lds | 6 ------
> > arch/sandbox/cpu/u-boot.lds | 6 ------
> > arch/sandbox/include/asm/getopt.h | 19 ++++++++++++-------
> > arch/sandbox/include/asm/sections.h | 25 -------------------------
> > 6 files changed, 27 insertions(+), 60 deletions(-)
>
> This particular test causes all of the pytest infrastructure to fail. I
> believe "make qcheck" will show this, even, for a possibly easier
> reproducer.
I didn't run this series through the CI so I hadn't been running the
pytest suite. `make qcheck` does run the pytest suite and shows a
bunch more ASAN failures. Some are simple but others are less obvious
and are going to need some time to dig into.
The issues being found by ASAN here are in the main u-boot code, not
just the test code, and a couple of them are in crypto components so
there might be some more interesting bugs to discover.
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v2 03/12] sandbox: Migrate getopt section to linker list
2022-05-02 16:24 ` Andrew Scull
@ 2022-05-02 16:27 ` Tom Rini
2022-05-15 20:37 ` Andrew Scull
0 siblings, 1 reply; 21+ messages in thread
From: Tom Rini @ 2022-05-02 16:27 UTC (permalink / raw)
To: Andrew Scull; +Cc: U-Boot Mailing List, Simon Glass, Heinrich Schuchardt
[-- Attachment #1: Type: text/plain, Size: 2068 bytes --]
On Mon, May 02, 2022 at 09:24:52AM -0700, Andrew Scull wrote:
> On Fri, 29 Apr 2022 at 08:11, Tom Rini <trini@konsulko.com> wrote:
> >
> > On Thu, Apr 14, 2022 at 01:59:32PM +0000, Andrew Scull wrote:
> >
> > > Use the common infrastructure to create a linker list of the sandbox
> > > command line flags rather than using a custom method.
> > >
> > > The list is changed from containing pointers to containing structs and
> > > the uses are updated accordingly.
> > >
> > > Signed-off-by: Andrew Scull <ascull@google.com>
> > > Reviewed-by: Simon Glass <sjg@chromium.org>
> > > ---
> > > arch/sandbox/cpu/os.c | 21 ++++++++++-----------
> > > arch/sandbox/cpu/start.c | 10 +++++-----
> > > arch/sandbox/cpu/u-boot-spl.lds | 6 ------
> > > arch/sandbox/cpu/u-boot.lds | 6 ------
> > > arch/sandbox/include/asm/getopt.h | 19 ++++++++++++-------
> > > arch/sandbox/include/asm/sections.h | 25 -------------------------
> > > 6 files changed, 27 insertions(+), 60 deletions(-)
> >
> > This particular test causes all of the pytest infrastructure to fail. I
> > believe "make qcheck" will show this, even, for a possibly easier
> > reproducer.
>
> I didn't run this series through the CI so I hadn't been running the
> pytest suite. `make qcheck` does run the pytest suite and shows a
> bunch more ASAN failures. Some are simple but others are less obvious
> and are going to need some time to dig into.
>
> The issues being found by ASAN here are in the main u-boot code, not
> just the test code, and a couple of them are in crypto components so
> there might be some more interesting bugs to discover.
OK, yeah, ASAN failures within the test suite are less important. I
forgot to mention maybe I disabled ASAN in sandbox and still got the
basic CI failure I mentioned above, bisect'd down to here. Please make
sure CI does pass on this for the next iteration and it's OK to go with
documenting how to enable ASAN afterwards and that tests need further
clean-up.
--
Tom
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 659 bytes --]
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v2 03/12] sandbox: Migrate getopt section to linker list
2022-05-02 16:27 ` Tom Rini
@ 2022-05-15 20:37 ` Andrew Scull
2022-05-16 10:47 ` Andrew Scull
0 siblings, 1 reply; 21+ messages in thread
From: Andrew Scull @ 2022-05-15 20:37 UTC (permalink / raw)
To: Tom Rini; +Cc: U-Boot Mailing List, Simon Glass, Heinrich Schuchardt
Looking at this again with a recent fetch of master, LTO is deleting
the linker list entries for the getopt declarations. Both clang and
gcc do this. I've not got an idea why at the moment and would love to
hear any suggestions.
On Mon, 2 May 2022 at 17:27, Tom Rini <trini@konsulko.com> wrote:
>
> On Mon, May 02, 2022 at 09:24:52AM -0700, Andrew Scull wrote:
> > On Fri, 29 Apr 2022 at 08:11, Tom Rini <trini@konsulko.com> wrote:
> > >
> > > On Thu, Apr 14, 2022 at 01:59:32PM +0000, Andrew Scull wrote:
> > >
> > > > Use the common infrastructure to create a linker list of the sandbox
> > > > command line flags rather than using a custom method.
> > > >
> > > > The list is changed from containing pointers to containing structs and
> > > > the uses are updated accordingly.
> > > >
> > > > Signed-off-by: Andrew Scull <ascull@google.com>
> > > > Reviewed-by: Simon Glass <sjg@chromium.org>
> > > > ---
> > > > arch/sandbox/cpu/os.c | 21 ++++++++++-----------
> > > > arch/sandbox/cpu/start.c | 10 +++++-----
> > > > arch/sandbox/cpu/u-boot-spl.lds | 6 ------
> > > > arch/sandbox/cpu/u-boot.lds | 6 ------
> > > > arch/sandbox/include/asm/getopt.h | 19 ++++++++++++-------
> > > > arch/sandbox/include/asm/sections.h | 25 -------------------------
> > > > 6 files changed, 27 insertions(+), 60 deletions(-)
> > >
> > > This particular test causes all of the pytest infrastructure to fail. I
> > > believe "make qcheck" will show this, even, for a possibly easier
> > > reproducer.
> >
> > I didn't run this series through the CI so I hadn't been running the
> > pytest suite. `make qcheck` does run the pytest suite and shows a
> > bunch more ASAN failures. Some are simple but others are less obvious
> > and are going to need some time to dig into.
> >
> > The issues being found by ASAN here are in the main u-boot code, not
> > just the test code, and a couple of them are in crypto components so
> > there might be some more interesting bugs to discover.
>
> OK, yeah, ASAN failures within the test suite are less important. I
> forgot to mention maybe I disabled ASAN in sandbox and still got the
> basic CI failure I mentioned above, bisect'd down to here. Please make
> sure CI does pass on this for the next iteration and it's OK to go with
> documenting how to enable ASAN afterwards and that tests need further
> clean-up.
>
> --
> Tom
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v2 03/12] sandbox: Migrate getopt section to linker list
2022-05-15 20:37 ` Andrew Scull
@ 2022-05-16 10:47 ` Andrew Scull
0 siblings, 0 replies; 21+ messages in thread
From: Andrew Scull @ 2022-05-16 10:47 UTC (permalink / raw)
To: Tom Rini; +Cc: U-Boot Mailing List, Simon Glass, Heinrich Schuchardt
> Looking at this again with a recent fetch of master, LTO is deleting
> the linker list entries for the getopt declarations. Both clang and
> gcc do this. I've not got an idea why at the moment and would love to
> hear any suggestions.
Turns out that this isn't a new problem and include/event.h already
had a work around by adding the 'used' attribute that I copied.
Sorting out the rebase, the tests look better locally, up until they
ask to run as root, which I don't feel comfortable with, so I am
sending it to the CI for more complete coverage.
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v2 04/12] linker_lists: Rename sections to remove . prefix
2022-04-14 13:59 ` [PATCH v2 04/12] linker_lists: Rename sections to remove . prefix Andrew Scull
@ 2022-05-17 8:06 ` Heinrich Schuchardt
2022-05-18 7:02 ` Andrew Scull
0 siblings, 1 reply; 21+ messages in thread
From: Heinrich Schuchardt @ 2022-05-17 8:06 UTC (permalink / raw)
To: Andrew Scull, sjg; +Cc: u-boot
On 4/14/22 15:59, Andrew Scull wrote:
> Rename the sections used to implement linker lists so they begin with
> '__u_boot_list' rather than '.u_boot_list'. The double underscore at the
> start is still distinct from the single underscore used by the symbol
> names.
>
> Having a '.' in the section names conflicts with clang's ASAN
> instrumentation which tries to add redzones between the linker list
> elements, causing expected accesses to fail. However, clang doesn't try
> to add redzones to user sections, which are names with all alphanumeric
> and underscore characters.
>
> Signed-off-by: Andrew Scull <ascull@google.com>
> Reviewed-by: Simon Glass <sjg@chromium.org>
> ---
> arch/arc/cpu/u-boot.lds | 4 ++--
> arch/arm/config.mk | 4 ++--
> arch/arm/cpu/arm926ejs/sunxi/u-boot-spl.lds | 4 ++--
> arch/arm/cpu/armv7/sunxi/u-boot-spl.lds | 4 ++--
> arch/arm/cpu/armv8/u-boot-spl.lds | 4 ++--
> arch/arm/cpu/armv8/u-boot.lds | 4 ++--
> arch/arm/cpu/u-boot-spl.lds | 4 ++--
> arch/arm/cpu/u-boot.lds | 6 ++---
> arch/arm/mach-at91/arm926ejs/u-boot-spl.lds | 2 +-
> arch/arm/mach-at91/armv7/u-boot-spl.lds | 2 +-
> arch/arm/mach-omap2/u-boot-spl.lds | 4 ++--
> arch/arm/mach-orion5x/u-boot-spl.lds | 4 ++--
> arch/arm/mach-rockchip/u-boot-tpl-v8.lds | 4 ++--
> arch/arm/mach-zynq/u-boot-spl.lds | 4 ++--
> arch/arm/mach-zynq/u-boot.lds | 4 ++--
> arch/m68k/cpu/u-boot.lds | 4 ++--
> arch/microblaze/cpu/u-boot-spl.lds | 4 ++--
> arch/microblaze/cpu/u-boot.lds | 4 ++--
> arch/mips/config.mk | 2 +-
> arch/mips/cpu/u-boot-spl.lds | 4 ++--
> arch/mips/cpu/u-boot.lds | 4 ++--
> arch/nds32/cpu/n1213/u-boot.lds | 4 ++--
> arch/nios2/cpu/u-boot.lds | 4 ++--
> arch/powerpc/cpu/mpc83xx/u-boot.lds | 4 ++--
> arch/powerpc/cpu/mpc85xx/u-boot-nand.lds | 4 ++--
> arch/powerpc/cpu/mpc85xx/u-boot-nand_spl.lds | 4 ++--
> arch/powerpc/cpu/mpc85xx/u-boot-spl.lds | 4 ++--
> arch/powerpc/cpu/mpc85xx/u-boot.lds | 4 ++--
> arch/riscv/cpu/u-boot-spl.lds | 4 ++--
> arch/riscv/cpu/u-boot.lds | 4 ++--
> arch/sandbox/config.mk | 4 ++--
> arch/sandbox/cpu/u-boot-spl.lds | 4 ++--
> arch/sandbox/cpu/u-boot.lds | 4 ++--
> arch/sh/cpu/u-boot.lds | 4 ++--
> arch/x86/cpu/u-boot-64.lds | 6 ++---
> arch/x86/cpu/u-boot-spl.lds | 6 ++---
> arch/x86/cpu/u-boot.lds | 6 ++---
> arch/x86/lib/elf_ia32_efi.lds | 4 ++--
> arch/x86/lib/elf_x86_64_efi.lds | 4 ++--
@Simon
This looks inconsistent.
Why should section u_boot_list exist in elf_x86_64_efi.lds and not in
elf_riscv64_efi.lds?
The sandbox is built and used on all architectures.
Best regards
Heinrich
> arch/xtensa/cpu/u-boot.lds | 2 +-
> arch/xtensa/include/asm/ldscript.h | 4 ++--
> board/compulab/cm_t335/u-boot.lds | 4 ++--
> board/cssi/MCR3000/u-boot.lds | 4 ++--
> .../davinci/da8xxevm/u-boot-spl-da850evm.lds | 2 +-
> board/qualcomm/dragonboard820c/u-boot.lds | 4 ++--
> board/samsung/common/exynos-uboot-spl.lds | 4 ++--
> board/synopsys/iot_devkit/u-boot.lds | 4 ++--
> board/ti/am335x/u-boot.lds | 4 ++--
> board/vscom/baltos/u-boot.lds | 4 ++--
> doc/api/linker_lists.rst | 22 +++++++++----------
> doc/develop/commands.rst | 4 ++--
> doc/develop/driver-model/of-plat.rst | 4 ++--
> include/linker_lists.h | 18 +++++++--------
> 53 files changed, 121 insertions(+), 121 deletions(-)
>
> diff --git a/arch/arc/cpu/u-boot.lds b/arch/arc/cpu/u-boot.lds
> index e12145c768..9f2973da65 100644
> --- a/arch/arc/cpu/u-boot.lds
> +++ b/arch/arc/cpu/u-boot.lds
> @@ -39,8 +39,8 @@ SECTIONS
> }
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = ALIGN(4);
> diff --git a/arch/arm/config.mk b/arch/arm/config.mk
> index b107b1af27..b3548ce243 100644
> --- a/arch/arm/config.mk
> +++ b/arch/arm/config.mk
> @@ -141,11 +141,11 @@ endif
> # limit ourselves to the sections we want in the .bin.
> ifdef CONFIG_ARM64
> OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .data \
> - -j .u_boot_list -j .rela.dyn -j .got -j .got.plt \
> + -j __u_boot_list -j .rela.dyn -j .got -j .got.plt \
> -j .binman_sym_table -j .text_rest
> else
> OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .hash \
> - -j .data -j .got -j .got.plt -j .u_boot_list -j .rel.dyn \
> + -j .data -j .got -j .got.plt -j __u_boot_list -j .rel.dyn \
> -j .binman_sym_table -j .text_rest
> endif
>
> diff --git a/arch/arm/cpu/arm926ejs/sunxi/u-boot-spl.lds b/arch/arm/cpu/arm926ejs/sunxi/u-boot-spl.lds
> index 9a000ac5d3..c108736811 100644
> --- a/arch/arm/cpu/arm926ejs/sunxi/u-boot-spl.lds
> +++ b/arch/arm/cpu/arm926ejs/sunxi/u-boot-spl.lds
> @@ -29,8 +29,8 @@ SECTIONS
> .data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> } > .sram
>
> . = ALIGN(4);
> diff --git a/arch/arm/cpu/armv7/sunxi/u-boot-spl.lds b/arch/arm/cpu/armv7/sunxi/u-boot-spl.lds
> index 942c29fc95..306a4ddf3c 100644
> --- a/arch/arm/cpu/armv7/sunxi/u-boot-spl.lds
> +++ b/arch/arm/cpu/armv7/sunxi/u-boot-spl.lds
> @@ -38,8 +38,8 @@ SECTIONS
> .data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> } > .sram
>
> . = ALIGN(4);
> diff --git a/arch/arm/cpu/armv8/u-boot-spl.lds b/arch/arm/cpu/armv8/u-boot-spl.lds
> index 730eb93dbc..d02b788e60 100644
> --- a/arch/arm/cpu/armv8/u-boot-spl.lds
> +++ b/arch/arm/cpu/armv8/u-boot-spl.lds
> @@ -46,9 +46,9 @@ SECTIONS
> } >.sram
> #endif
>
> - .u_boot_list : {
> + __u_boot_list : {
> . = ALIGN(8);
> - KEEP(*(SORT(.u_boot_list*)));
> + KEEP(*(SORT(__u_boot_list*)));
> } >.sram
>
> .image_copy_end : {
> diff --git a/arch/arm/cpu/armv8/u-boot.lds b/arch/arm/cpu/armv8/u-boot.lds
> index 2554980595..8fe4682dd2 100644
> --- a/arch/arm/cpu/armv8/u-boot.lds
> +++ b/arch/arm/cpu/armv8/u-boot.lds
> @@ -109,8 +109,8 @@ SECTIONS
> . = .;
>
> . = ALIGN(8);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = ALIGN(8);
> diff --git a/arch/arm/cpu/u-boot-spl.lds b/arch/arm/cpu/u-boot-spl.lds
> index 97899a567f..fb2189d50d 100644
> --- a/arch/arm/cpu/u-boot-spl.lds
> +++ b/arch/arm/cpu/u-boot-spl.lds
> @@ -32,8 +32,8 @@ SECTIONS
> }
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = ALIGN(4);
> diff --git a/arch/arm/cpu/u-boot.lds b/arch/arm/cpu/u-boot.lds
> index 0eb164d2e6..f25f72b2e0 100644
> --- a/arch/arm/cpu/u-boot.lds
> +++ b/arch/arm/cpu/u-boot.lds
> @@ -15,7 +15,7 @@ ENTRY(_start)
> SECTIONS
> {
> #ifndef CONFIG_CMDLINE
> - /DISCARD/ : { *(.u_boot_list_2_cmd_*) }
> + /DISCARD/ : { *(__u_boot_list_2_cmd_*) }
> #endif
> #if defined(CONFIG_ARMV7_SECURE_BASE) && defined(CONFIG_ARMV7_NONSEC)
> /*
> @@ -149,8 +149,8 @@ SECTIONS
> . = .;
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = ALIGN(4);
> diff --git a/arch/arm/mach-at91/arm926ejs/u-boot-spl.lds b/arch/arm/mach-at91/arm926ejs/u-boot-spl.lds
> index 74f6355229..1a8bf94dee 100644
> --- a/arch/arm/mach-at91/arm926ejs/u-boot-spl.lds
> +++ b/arch/arm/mach-at91/arm926ejs/u-boot-spl.lds
> @@ -29,7 +29,7 @@ SECTIONS
> .data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
>
> . = ALIGN(4);
> - .u_boot_list : { KEEP(*(SORT(.u_boot_list*))) } > .sram
> + __u_boot_list : { KEEP(*(SORT(__u_boot_list*))) } > .sram
>
> . = ALIGN(4);
> __image_copy_end = .;
> diff --git a/arch/arm/mach-at91/armv7/u-boot-spl.lds b/arch/arm/mach-at91/armv7/u-boot-spl.lds
> index 950ea55d7c..6ca725fc4c 100644
> --- a/arch/arm/mach-at91/armv7/u-boot-spl.lds
> +++ b/arch/arm/mach-at91/armv7/u-boot-spl.lds
> @@ -36,7 +36,7 @@ SECTIONS
> .data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
>
> . = ALIGN(4);
> - .u_boot_list : { KEEP(*(SORT(.u_boot_list*))) } > .sram
> + __u_boot_list : { KEEP(*(SORT(__u_boot_list*))) } > .sram
>
> . = ALIGN(4);
> __image_copy_end = .;
> diff --git a/arch/arm/mach-omap2/u-boot-spl.lds b/arch/arm/mach-omap2/u-boot-spl.lds
> index 88d81f9b98..1d6e5d45b4 100644
> --- a/arch/arm/mach-omap2/u-boot-spl.lds
> +++ b/arch/arm/mach-omap2/u-boot-spl.lds
> @@ -33,8 +33,8 @@ SECTIONS
> .data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> } >.sram
>
> . = ALIGN(4);
> diff --git a/arch/arm/mach-orion5x/u-boot-spl.lds b/arch/arm/mach-orion5x/u-boot-spl.lds
> index a537fe0295..154bb12060 100644
> --- a/arch/arm/mach-orion5x/u-boot-spl.lds
> +++ b/arch/arm/mach-orion5x/u-boot-spl.lds
> @@ -41,8 +41,8 @@ SECTIONS
> .data : { *(SORT_BY_ALIGNMENT(.data*)) } >.nor
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> } > .nor
>
> . = ALIGN(4);
> diff --git a/arch/arm/mach-rockchip/u-boot-tpl-v8.lds b/arch/arm/mach-rockchip/u-boot-tpl-v8.lds
> index 9869972e22..74618eba59 100644
> --- a/arch/arm/mach-rockchip/u-boot-tpl-v8.lds
> +++ b/arch/arm/mach-rockchip/u-boot-tpl-v8.lds
> @@ -39,9 +39,9 @@ SECTIONS
> *(.data*)
> }
>
> - .u_boot_list : {
> + __u_boot_list : {
> . = ALIGN(8);
> - KEEP(*(SORT(.u_boot_list*)));
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> .image_copy_end : {
> diff --git a/arch/arm/mach-zynq/u-boot-spl.lds b/arch/arm/mach-zynq/u-boot-spl.lds
> index 106d2e390b..8c18d3f91f 100644
> --- a/arch/arm/mach-zynq/u-boot-spl.lds
> +++ b/arch/arm/mach-zynq/u-boot-spl.lds
> @@ -37,8 +37,8 @@ SECTIONS
> } > .sram
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> } > .sram
>
> . = ALIGN(4);
> diff --git a/arch/arm/mach-zynq/u-boot.lds b/arch/arm/mach-zynq/u-boot.lds
> index 91c32e89e8..a5169fd915 100644
> --- a/arch/arm/mach-zynq/u-boot.lds
> +++ b/arch/arm/mach-zynq/u-boot.lds
> @@ -54,8 +54,8 @@ SECTIONS
> . = .;
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = ALIGN(4);
> diff --git a/arch/m68k/cpu/u-boot.lds b/arch/m68k/cpu/u-boot.lds
> index affb2d9374..133f79150b 100644
> --- a/arch/m68k/cpu/u-boot.lds
> +++ b/arch/m68k/cpu/u-boot.lds
> @@ -60,8 +60,8 @@ SECTIONS
> . = .;
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = .;
> diff --git a/arch/microblaze/cpu/u-boot-spl.lds b/arch/microblaze/cpu/u-boot-spl.lds
> index 7883a64b15..4ac5a21524 100644
> --- a/arch/microblaze/cpu/u-boot-spl.lds
> +++ b/arch/microblaze/cpu/u-boot-spl.lds
> @@ -37,8 +37,8 @@ SECTIONS
> }
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
> __init_end = . ;
>
> diff --git a/arch/microblaze/cpu/u-boot.lds b/arch/microblaze/cpu/u-boot.lds
> index 2b316cc7f5..8bd515b099 100644
> --- a/arch/microblaze/cpu/u-boot.lds
> +++ b/arch/microblaze/cpu/u-boot.lds
> @@ -41,8 +41,8 @@ SECTIONS
> }
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
> __init_end = . ;
>
> diff --git a/arch/mips/config.mk b/arch/mips/config.mk
> index faf4129ac1..04f3627805 100644
> --- a/arch/mips/config.mk
> +++ b/arch/mips/config.mk
> @@ -65,6 +65,6 @@ PLATFORM_CPPFLAGS += -msoft-float
> KBUILD_LDFLAGS += -G 0 -static -n -nostdlib
> PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
> LDFLAGS_FINAL += --gc-sections
> -OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .u_boot_list
> +OBJCOPYFLAGS += -j .text -j .rodata -j .data -j __u_boot_list
>
> LDFLAGS_STANDALONE += --gc-sections
> diff --git a/arch/mips/cpu/u-boot-spl.lds b/arch/mips/cpu/u-boot-spl.lds
> index 28ea4f2a48..194398be85 100644
> --- a/arch/mips/cpu/u-boot-spl.lds
> +++ b/arch/mips/cpu/u-boot-spl.lds
> @@ -29,8 +29,8 @@ SECTIONS
>
> #if defined(CONFIG_SPL_DM) || defined(CONFIG_SPL_LOADER_SUPPORT)
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> } > .spl_mem
> #endif
>
> diff --git a/arch/mips/cpu/u-boot.lds b/arch/mips/cpu/u-boot.lds
> index 86496737d3..9a4ebcd151 100644
> --- a/arch/mips/cpu/u-boot.lds
> +++ b/arch/mips/cpu/u-boot.lds
> @@ -33,8 +33,8 @@ SECTIONS
> }
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = ALIGN(4);
> diff --git a/arch/nds32/cpu/n1213/u-boot.lds b/arch/nds32/cpu/n1213/u-boot.lds
> index 4abaf0af1a..1040171415 100644
> --- a/arch/nds32/cpu/n1213/u-boot.lds
> +++ b/arch/nds32/cpu/n1213/u-boot.lds
> @@ -35,8 +35,8 @@ SECTIONS
> }
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = ALIGN(4);
> diff --git a/arch/nios2/cpu/u-boot.lds b/arch/nios2/cpu/u-boot.lds
> index cbf54b4610..5b9e27d940 100644
> --- a/arch/nios2/cpu/u-boot.lds
> +++ b/arch/nios2/cpu/u-boot.lds
> @@ -32,8 +32,8 @@ SECTIONS
> */
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> /* INIT DATA sections - "Small" data (see the gcc -G option)
> diff --git a/arch/powerpc/cpu/mpc83xx/u-boot.lds b/arch/powerpc/cpu/mpc83xx/u-boot.lds
> index d10f528da4..1a1e537b2a 100644
> --- a/arch/powerpc/cpu/mpc83xx/u-boot.lds
> +++ b/arch/powerpc/cpu/mpc83xx/u-boot.lds
> @@ -42,8 +42,8 @@ SECTIONS
> . = .;
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
>
> diff --git a/arch/powerpc/cpu/mpc85xx/u-boot-nand.lds b/arch/powerpc/cpu/mpc85xx/u-boot-nand.lds
> index 75b0285e4e..3a9746c860 100644
> --- a/arch/powerpc/cpu/mpc85xx/u-boot-nand.lds
> +++ b/arch/powerpc/cpu/mpc85xx/u-boot-nand.lds
> @@ -59,8 +59,8 @@ SECTIONS
>
> . = .;
>
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = .;
> diff --git a/arch/powerpc/cpu/mpc85xx/u-boot-nand_spl.lds b/arch/powerpc/cpu/mpc85xx/u-boot-nand_spl.lds
> index a2193bf768..fc2519d0b1 100644
> --- a/arch/powerpc/cpu/mpc85xx/u-boot-nand_spl.lds
> +++ b/arch/powerpc/cpu/mpc85xx/u-boot-nand_spl.lds
> @@ -35,8 +35,8 @@ SECTIONS
> }
> _edata = .;
>
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = ALIGN(8);
> diff --git a/arch/powerpc/cpu/mpc85xx/u-boot-spl.lds b/arch/powerpc/cpu/mpc85xx/u-boot-spl.lds
> index 27a5fe6306..2f59b4fc12 100644
> --- a/arch/powerpc/cpu/mpc85xx/u-boot-spl.lds
> +++ b/arch/powerpc/cpu/mpc85xx/u-boot-spl.lds
> @@ -43,8 +43,8 @@ SECTIONS
> _edata = .;
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = .;
> diff --git a/arch/powerpc/cpu/mpc85xx/u-boot.lds b/arch/powerpc/cpu/mpc85xx/u-boot.lds
> index 22bbac51aa..b6855f5571 100644
> --- a/arch/powerpc/cpu/mpc85xx/u-boot.lds
> +++ b/arch/powerpc/cpu/mpc85xx/u-boot.lds
> @@ -66,8 +66,8 @@ SECTIONS
> . = .;
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = .;
> diff --git a/arch/riscv/cpu/u-boot-spl.lds b/arch/riscv/cpu/u-boot-spl.lds
> index d0495ce248..993536302a 100644
> --- a/arch/riscv/cpu/u-boot-spl.lds
> +++ b/arch/riscv/cpu/u-boot-spl.lds
> @@ -40,8 +40,8 @@ SECTIONS
>
> . = ALIGN(4);
>
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> } > .spl_mem
>
> . = ALIGN(4);
> diff --git a/arch/riscv/cpu/u-boot.lds b/arch/riscv/cpu/u-boot.lds
> index c00d17c736..1c937aebee 100644
> --- a/arch/riscv/cpu/u-boot.lds
> +++ b/arch/riscv/cpu/u-boot.lds
> @@ -44,8 +44,8 @@ SECTIONS
>
> . = ALIGN(4);
>
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = ALIGN(4);
> diff --git a/arch/sandbox/config.mk b/arch/sandbox/config.mk
> index 2b1b657831..c42de2ff27 100644
> --- a/arch/sandbox/config.mk
> +++ b/arch/sandbox/config.mk
> @@ -44,13 +44,13 @@ EFI_TARGET := --target=efi-app-ia32
> else ifeq ($(HOST_ARCH),$(HOST_ARCH_AARCH64))
> EFI_LDS := ${SRCDIR}/../../../arch/arm/lib/elf_aarch64_efi.lds
> OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .data \
> - -j .u_boot_list -j .rela.dyn -j .got -j .got.plt \
> + -j __u_boot_list -j .rela.dyn -j .got -j .got.plt \
> -j .binman_sym_table -j .text_rest \
> -j .efi_runtime -j .efi_runtime_rel
> else ifeq ($(HOST_ARCH),$(HOST_ARCH_ARM))
> EFI_LDS := ${SRCDIR}/../../../arch/arm/lib/elf_arm_efi.lds
> OBJCOPYFLAGS += -j .text -j .secure_text -j .secure_data -j .rodata -j .hash \
> - -j .data -j .got -j .got.plt -j .u_boot_list -j .rel.dyn \
> + -j .data -j .got -j .got.plt -j __u_boot_list -j .rel.dyn \
> -j .binman_sym_table -j .text_rest \
> -j .efi_runtime -j .efi_runtime_rel
> else ifeq ($(HOST_ARCH),$(HOST_ARCH_RISCV32))
> diff --git a/arch/sandbox/cpu/u-boot-spl.lds b/arch/sandbox/cpu/u-boot-spl.lds
> index 5c19d090cb..046ed0875b 100644
> --- a/arch/sandbox/cpu/u-boot-spl.lds
> +++ b/arch/sandbox/cpu/u-boot-spl.lds
> @@ -9,8 +9,8 @@ SECTIONS
> {
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> /* Private data for devices with OF_PLATDATA_RT */
> diff --git a/arch/sandbox/cpu/u-boot.lds b/arch/sandbox/cpu/u-boot.lds
> index 6fa244fae9..b74da3aa0d 100644
> --- a/arch/sandbox/cpu/u-boot.lds
> +++ b/arch/sandbox/cpu/u-boot.lds
> @@ -9,8 +9,8 @@ SECTIONS
> {
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> efi_runtime_start : {
> diff --git a/arch/sh/cpu/u-boot.lds b/arch/sh/cpu/u-boot.lds
> index 4cc97737f1..ff80ce78f3 100644
> --- a/arch/sh/cpu/u-boot.lds
> +++ b/arch/sh/cpu/u-boot.lds
> @@ -70,8 +70,8 @@ SECTIONS
> } >ram
> PROVIDE (_egot = .);
>
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> } >ram
>
> PROVIDE (__init_end = .);
> diff --git a/arch/x86/cpu/u-boot-64.lds b/arch/x86/cpu/u-boot-64.lds
> index 92a30c2a38..53c56043a9 100644
> --- a/arch/x86/cpu/u-boot-64.lds
> +++ b/arch/x86/cpu/u-boot-64.lds
> @@ -12,7 +12,7 @@ ENTRY(_start)
> SECTIONS
> {
> #ifndef CONFIG_CMDLINE
> - /DISCARD/ : { *(.u_boot_list_2_cmd_*) }
> + /DISCARD/ : { *(__u_boot_list_2_cmd_*) }
> #endif
>
> #ifdef CONFIG_SYS_TEXT_BASE
> @@ -41,8 +41,8 @@ SECTIONS
> . = ALIGN(4);
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = ALIGN(4);
> diff --git a/arch/x86/cpu/u-boot-spl.lds b/arch/x86/cpu/u-boot-spl.lds
> index 346f60bdac..a0a2a06a18 100644
> --- a/arch/x86/cpu/u-boot-spl.lds
> +++ b/arch/x86/cpu/u-boot-spl.lds
> @@ -12,7 +12,7 @@ ENTRY(_start)
> SECTIONS
> {
> #ifndef CONFIG_CMDLINE
> - /DISCARD/ : { *(.u_boot_list_2_cmd_*) }
> + /DISCARD/ : { *(__u_boot_list_2_cmd_*) }
> #endif
>
> . = IMAGE_TEXT_BASE; /* Location of bootcode in flash */
> @@ -25,8 +25,8 @@ SECTIONS
> . = ALIGN(4);
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = ALIGN(4);
> diff --git a/arch/x86/cpu/u-boot.lds b/arch/x86/cpu/u-boot.lds
> index 22fde01e74..7c87209834 100644
> --- a/arch/x86/cpu/u-boot.lds
> +++ b/arch/x86/cpu/u-boot.lds
> @@ -12,7 +12,7 @@ ENTRY(_start)
> SECTIONS
> {
> #ifndef CONFIG_CMDLINE
> - /DISCARD/ : { *(.u_boot_list_2_cmd_*) }
> + /DISCARD/ : { *(__u_boot_list_2_cmd_*) }
> #endif
>
> . = CONFIG_SYS_TEXT_BASE; /* Location of bootcode in flash */
> @@ -39,8 +39,8 @@ SECTIONS
> . = ALIGN(4);
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = ALIGN(4);
> diff --git a/arch/x86/lib/elf_ia32_efi.lds b/arch/x86/lib/elf_ia32_efi.lds
> index aad61e7f81..6d89c1fbd5 100644
> --- a/arch/x86/lib/elf_ia32_efi.lds
> +++ b/arch/x86/lib/elf_ia32_efi.lds
> @@ -51,7 +51,7 @@ SECTIONS
>
> /* U-Boot lists and device tree */
> . = ALIGN(8);
> - *(SORT(.u_boot_list*));
> + *(SORT(__u_boot_list*));
> . = ALIGN(8);
> *(.dtb*);
> }
> @@ -69,7 +69,7 @@ SECTIONS
> *(.data.rel.local)
> *(.data.rel.ro)
> *(.data.rel*)
> - *(.rel.u_boot_list*)
> + *(.rel__u_boot_list*)
> }
> . = ALIGN(4096);
> .reloc : /* This is the PECOFF .reloc section! */
> diff --git a/arch/x86/lib/elf_x86_64_efi.lds b/arch/x86/lib/elf_x86_64_efi.lds
> index 75727400aa..ada024c05c 100644
> --- a/arch/x86/lib/elf_x86_64_efi.lds
> +++ b/arch/x86/lib/elf_x86_64_efi.lds
> @@ -50,7 +50,7 @@ SECTIONS
>
> /* U-Boot lists and device tree */
> . = ALIGN(8);
> - *(SORT(.u_boot_list*));
> + *(SORT(__u_boot_list*));
> . = ALIGN(8);
> *(.dtb*);
> }
> @@ -63,7 +63,7 @@ SECTIONS
> *(.rela.data*)
> *(.rela.got)
> *(.rela.stab)
> - *(.rela.u_boot_list*)
> + *(.rela__u_boot_list*)
> }
>
> . = ALIGN(4096);
> diff --git a/arch/xtensa/cpu/u-boot.lds b/arch/xtensa/cpu/u-boot.lds
> index 493f3fdb99..37dc92b308 100644
> --- a/arch/xtensa/cpu/u-boot.lds
> +++ b/arch/xtensa/cpu/u-boot.lds
> @@ -78,7 +78,7 @@ SECTIONS
> SECTION_text(XTENSA_SYS_TEXT_ADDR, FOLLOWING(.DoubleExceptionVector.text))
> SECTION_rodata(ALIGN(16), FOLLOWING(.text))
> SECTION_u_boot_list(ALIGN(16), FOLLOWING(.rodata))
> - SECTION_data(ALIGN(16), FOLLOWING(.u_boot_list))
> + SECTION_data(ALIGN(16), FOLLOWING(__u_boot_list))
>
> __reloc_end = .;
> __init_end = .;
> diff --git a/arch/xtensa/include/asm/ldscript.h b/arch/xtensa/include/asm/ldscript.h
> index 08f5d0135e..4f75483356 100644
> --- a/arch/xtensa/include/asm/ldscript.h
> +++ b/arch/xtensa/include/asm/ldscript.h
> @@ -100,10 +100,10 @@
> }
>
> #define SECTION_u_boot_list(_vma_, _lma_) \
> - .u_boot_list _vma_ : _lma_ \
> + __u_boot_list _vma_ : _lma_ \
> { \
> _u_boot_list_start = ABSOLUTE(.); \
> - KEEP(*(SORT(.u_boot_list*))); \
> + KEEP(*(SORT(__u_boot_list*))); \
> _u_boot_list_end = ABSOLUTE(.); \
> }
>
> diff --git a/board/compulab/cm_t335/u-boot.lds b/board/compulab/cm_t335/u-boot.lds
> index b00e466d58..4993880461 100644
> --- a/board/compulab/cm_t335/u-boot.lds
> +++ b/board/compulab/cm_t335/u-boot.lds
> @@ -36,8 +36,8 @@ SECTIONS
> . = .;
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = ALIGN(4);
> diff --git a/board/cssi/MCR3000/u-boot.lds b/board/cssi/MCR3000/u-boot.lds
> index 70aef3241c..24b535e724 100644
> --- a/board/cssi/MCR3000/u-boot.lds
> +++ b/board/cssi/MCR3000/u-boot.lds
> @@ -59,8 +59,8 @@ SECTIONS
> . = .;
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = .;
> diff --git a/board/davinci/da8xxevm/u-boot-spl-da850evm.lds b/board/davinci/da8xxevm/u-boot-spl-da850evm.lds
> index 8f04911306..de1c9c6fce 100644
> --- a/board/davinci/da8xxevm/u-boot-spl-da850evm.lds
> +++ b/board/davinci/da8xxevm/u-boot-spl-da850evm.lds
> @@ -36,7 +36,7 @@ SECTIONS
> .data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
>
> . = ALIGN(4);
> - .u_boot_list : { KEEP(*(SORT(.u_boot_list*))); } >.sram
> + __u_boot_list : { KEEP(*(SORT(__u_boot_list*))); } >.sram
>
> . = ALIGN(4);
> .rel.dyn : {
> diff --git a/board/qualcomm/dragonboard820c/u-boot.lds b/board/qualcomm/dragonboard820c/u-boot.lds
> index dcf8256cec..5251b59fbe 100644
> --- a/board/qualcomm/dragonboard820c/u-boot.lds
> +++ b/board/qualcomm/dragonboard820c/u-boot.lds
> @@ -49,8 +49,8 @@ SECTIONS
> . = .;
>
> . = ALIGN(8);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = ALIGN(8);
> diff --git a/board/samsung/common/exynos-uboot-spl.lds b/board/samsung/common/exynos-uboot-spl.lds
> index 5b32f7feb8..73cd97a1b1 100644
> --- a/board/samsung/common/exynos-uboot-spl.lds
> +++ b/board/samsung/common/exynos-uboot-spl.lds
> @@ -32,8 +32,8 @@ SECTIONS
> .data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
> . = ALIGN(4);
>
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> } >.sram
> . = ALIGN(4);
>
> diff --git a/board/synopsys/iot_devkit/u-boot.lds b/board/synopsys/iot_devkit/u-boot.lds
> index d083168705..dca2e2daee 100644
> --- a/board/synopsys/iot_devkit/u-boot.lds
> +++ b/board/synopsys/iot_devkit/u-boot.lds
> @@ -39,8 +39,8 @@ SECTIONS
> } > ROM
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
>
> /* Mark RAM's LMA */
> . = ALIGN(4);
> diff --git a/board/ti/am335x/u-boot.lds b/board/ti/am335x/u-boot.lds
> index 03c1d5f73b..087dee8bb2 100644
> --- a/board/ti/am335x/u-boot.lds
> +++ b/board/ti/am335x/u-boot.lds
> @@ -72,8 +72,8 @@ SECTIONS
> . = .;
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = ALIGN(4);
> diff --git a/board/vscom/baltos/u-boot.lds b/board/vscom/baltos/u-boot.lds
> index 315ba5b99a..cb2ee67697 100644
> --- a/board/vscom/baltos/u-boot.lds
> +++ b/board/vscom/baltos/u-boot.lds
> @@ -53,8 +53,8 @@ SECTIONS
> . = .;
>
> . = ALIGN(4);
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> . = ALIGN(4);
> diff --git a/doc/api/linker_lists.rst b/doc/api/linker_lists.rst
> index 7063fdc831..3cd447f187 100644
> --- a/doc/api/linker_lists.rst
> +++ b/doc/api/linker_lists.rst
> @@ -13,7 +13,7 @@ then the corresponding input section name is
>
> ::
>
> - .u_boot_list_ + 2_ + @_list + _2_ + @_entry
> + __u_boot_list_ + 2_ + @_list + _2_ + @_entry
>
> and the C variable name is
>
> @@ -23,7 +23,7 @@ and the C variable name is
>
> This ensures uniqueness for both input section and C variable name.
>
> -Note that the names differ only in the first character, "." for the
> +Note that the names differ only in the characters, "__" for the
> section and "_" for the variable, so that the linker cannot confuse
> section and symbol names. From now on, both names will be referred
> to as
> @@ -63,11 +63,11 @@ iterated at least once.
>
> ::
>
> - .u_boot_list_2_array_1
> - .u_boot_list_2_array_2_first
> - .u_boot_list_2_array_2_second
> - .u_boot_list_2_array_2_third
> - .u_boot_list_2_array_3
> + __u_boot_list_2_array_1
> + __u_boot_list_2_array_2_first
> + __u_boot_list_2_array_2_second
> + __u_boot_list_2_array_2_third
> + __u_boot_list_2_array_3
>
> If lists must be divided into sublists (e.g. for iterating only on
> part of a list), one can simply give the list a name of the form
> @@ -129,17 +129,17 @@ the compiler cannot update the alignment of the linker_list item.
>
> In the first case, an 8-byte 'fill' region is added::
>
> - .u_boot_list_2_driver_2_testbus_drv
> + __u_boot_list_2_driver_2_testbus_drv
> 0x0000000000270018 0x80 test/built-in.o
> 0x0000000000270018 _u_boot_list_2_driver_2_testbus_drv
> - .u_boot_list_2_driver_2_testfdt1_drv
> + __u_boot_list_2_driver_2_testfdt1_drv
> 0x0000000000270098 0x80 test/built-in.o
> 0x0000000000270098 _u_boot_list_2_driver_2_testfdt1_drv
> *fill* 0x0000000000270118 0x8
> - .u_boot_list_2_driver_2_testfdt_drv
> + __u_boot_list_2_driver_2_testfdt_drv
> 0x0000000000270120 0x80 test/built-in.o
> 0x0000000000270120 _u_boot_list_2_driver_2_testfdt_drv
> - .u_boot_list_2_driver_2_testprobe_drv
> + __u_boot_list_2_driver_2_testprobe_drv
> 0x00000000002701a0 0x80 test/built-in.o
> 0x00000000002701a0 _u_boot_list_2_driver_2_testprobe_drv
>
> diff --git a/doc/develop/commands.rst b/doc/develop/commands.rst
> index c72d1b0aaa..ede880d248 100644
> --- a/doc/develop/commands.rst
> +++ b/doc/develop/commands.rst
> @@ -169,8 +169,8 @@ by writing in u-boot.lds ($(srctree)/board/boardname/u-boot.lds) these
>
> .. code-block:: c
>
> - .u_boot_list : {
> - KEEP(*(SORT(.u_boot_list*)));
> + __u_boot_list : {
> + KEEP(*(SORT(__u_boot_list*)));
> }
>
> Writing tests
> diff --git a/doc/develop/driver-model/of-plat.rst b/doc/develop/driver-model/of-plat.rst
> index 237af38ad4..b454f7be85 100644
> --- a/doc/develop/driver-model/of-plat.rst
> +++ b/doc/develop/driver-model/of-plat.rst
> @@ -707,9 +707,9 @@ Link errors / undefined reference
> Sometimes dtoc does not find the problem for you, but something is wrong and
> you get a link error, e.g.::
>
> - :(.u_boot_list_2_udevice_2_spl_test5+0x0): undefined reference to
> + :(__u_boot_list_2_udevice_2_spl_test5+0x0): undefined reference to
> `_u_boot_list_2_driver_2_sandbox_spl_test'
> - /usr/bin/ld: dts/dt-uclass.o:(.u_boot_list_2_uclass_2_misc+0x8):
> + /usr/bin/ld: dts/dt-uclass.o:(__u_boot_list_2_uclass_2_misc+0x8):
> undefined reference to `_u_boot_list_2_uclass_driver_2_misc'
>
> The first one indicates that the device cannot find its driver. This means that
> diff --git a/include/linker_lists.h b/include/linker_lists.h
> index 0575164ce4..d3da9d44e8 100644
> --- a/include/linker_lists.h
> +++ b/include/linker_lists.h
> @@ -70,7 +70,7 @@
> #define ll_entry_declare(_type, _name, _list) \
> _type _u_boot_list_2_##_list##_2_##_name __aligned(4) \
> __attribute__((unused)) \
> - __section(".u_boot_list_2_"#_list"_2_"#_name)
> + __section("__u_boot_list_2_"#_list"_2_"#_name)
>
> /**
> * ll_entry_declare_list() - Declare a list of link-generated array entries
> @@ -93,7 +93,7 @@
> #define ll_entry_declare_list(_type, _name, _list) \
> _type _u_boot_list_2_##_list##_2_##_name[] __aligned(4) \
> __attribute__((unused)) \
> - __section(".u_boot_list_2_"#_list"_2_"#_name)
> + __section("__u_boot_list_2_"#_list"_2_"#_name)
>
> /*
> * We need a 0-byte-size type for iterator symbols, and the compiler
> @@ -110,7 +110,7 @@
> * @_list: Name of the list in which this entry is placed
> *
> * This function returns ``(_type *)`` pointer to the very first entry of a
> - * linker-generated array placed into subsection of .u_boot_list section
> + * linker-generated array placed into subsection of __u_boot_list section
> * specified by _list argument.
> *
> * Since this macro defines an array start symbol, its leftmost index
> @@ -126,7 +126,7 @@
> ({ \
> static char start[0] __aligned(CONFIG_LINKER_LIST_ALIGN) \
> __attribute__((unused)) \
> - __section(".u_boot_list_2_"#_list"_1"); \
> + __section("__u_boot_list_2_"#_list"_1"); \
> (_type *)&start; \
> })
>
> @@ -137,7 +137,7 @@
> * (with underscores instead of dots)
> *
> * This function returns ``(_type *)`` pointer after the very last entry of
> - * a linker-generated array placed into subsection of .u_boot_list
> + * a linker-generated array placed into subsection of __u_boot_list
> * section specified by _list argument.
> *
> * Since this macro defines an array end symbol, its leftmost index
> @@ -152,7 +152,7 @@
> #define ll_entry_end(_type, _list) \
> ({ \
> static char end[0] __aligned(4) __attribute__((unused)) \
> - __section(".u_boot_list_2_"#_list"_3"); \
> + __section("__u_boot_list_2_"#_list"_3"); \
> (_type *)&end; \
> })
> /**
> @@ -161,7 +161,7 @@
> * @_list: Name of the list of which the number of elements is computed
> *
> * This function returns the number of elements of a linker-generated array
> - * placed into subsection of .u_boot_list section specified by _list
> + * placed into subsection of __u_boot_list section specified by _list
> * argument. The result is of an unsigned int type.
> *
> * Example:
> @@ -246,7 +246,7 @@
> #define ll_start(_type) \
> ({ \
> static char start[0] __aligned(4) __attribute__((unused)) \
> - __section(".u_boot_list_1"); \
> + __section("__u_boot_list_1"); \
> (_type *)&start; \
> })
>
> @@ -269,7 +269,7 @@
> #define ll_end(_type) \
> ({ \
> static char end[0] __aligned(4) __attribute__((unused)) \
> - __section(".u_boot_list_3"); \
> + __section("__u_boot_list_3"); \
> (_type *)&end; \
> })
>
^ permalink raw reply [flat|nested] 21+ messages in thread
* Re: [PATCH v2 04/12] linker_lists: Rename sections to remove . prefix
2022-05-17 8:06 ` Heinrich Schuchardt
@ 2022-05-18 7:02 ` Andrew Scull
0 siblings, 0 replies; 21+ messages in thread
From: Andrew Scull @ 2022-05-18 7:02 UTC (permalink / raw)
To: Heinrich Schuchardt; +Cc: Simon Glass, U-Boot Mailing List
On Tue, 17 May 2022 at 09:06, Heinrich Schuchardt <xypron.glpk@gmx.de> wrote:
>
> On 4/14/22 15:59, Andrew Scull wrote:
> > Rename the sections used to implement linker lists so they begin with
> > '__u_boot_list' rather than '.u_boot_list'. The double underscore at the
> > start is still distinct from the single underscore used by the symbol
> > names.
> >
> > Having a '.' in the section names conflicts with clang's ASAN
> > instrumentation which tries to add redzones between the linker list
> > elements, causing expected accesses to fail. However, clang doesn't try
> > to add redzones to user sections, which are names with all alphanumeric
> > and underscore characters.
> >
> > Signed-off-by: Andrew Scull <ascull@google.com>
> > Reviewed-by: Simon Glass <sjg@chromium.org>
> > ---
> > arch/arc/cpu/u-boot.lds | 4 ++--
> > arch/arm/config.mk | 4 ++--
> > arch/arm/cpu/arm926ejs/sunxi/u-boot-spl.lds | 4 ++--
> > arch/arm/cpu/armv7/sunxi/u-boot-spl.lds | 4 ++--
> > arch/arm/cpu/armv8/u-boot-spl.lds | 4 ++--
> > arch/arm/cpu/armv8/u-boot.lds | 4 ++--
> > arch/arm/cpu/u-boot-spl.lds | 4 ++--
> > arch/arm/cpu/u-boot.lds | 6 ++---
> > arch/arm/mach-at91/arm926ejs/u-boot-spl.lds | 2 +-
> > arch/arm/mach-at91/armv7/u-boot-spl.lds | 2 +-
> > arch/arm/mach-omap2/u-boot-spl.lds | 4 ++--
> > arch/arm/mach-orion5x/u-boot-spl.lds | 4 ++--
> > arch/arm/mach-rockchip/u-boot-tpl-v8.lds | 4 ++--
> > arch/arm/mach-zynq/u-boot-spl.lds | 4 ++--
> > arch/arm/mach-zynq/u-boot.lds | 4 ++--
> > arch/m68k/cpu/u-boot.lds | 4 ++--
> > arch/microblaze/cpu/u-boot-spl.lds | 4 ++--
> > arch/microblaze/cpu/u-boot.lds | 4 ++--
> > arch/mips/config.mk | 2 +-
> > arch/mips/cpu/u-boot-spl.lds | 4 ++--
> > arch/mips/cpu/u-boot.lds | 4 ++--
> > arch/nds32/cpu/n1213/u-boot.lds | 4 ++--
> > arch/nios2/cpu/u-boot.lds | 4 ++--
> > arch/powerpc/cpu/mpc83xx/u-boot.lds | 4 ++--
> > arch/powerpc/cpu/mpc85xx/u-boot-nand.lds | 4 ++--
> > arch/powerpc/cpu/mpc85xx/u-boot-nand_spl.lds | 4 ++--
> > arch/powerpc/cpu/mpc85xx/u-boot-spl.lds | 4 ++--
> > arch/powerpc/cpu/mpc85xx/u-boot.lds | 4 ++--
> > arch/riscv/cpu/u-boot-spl.lds | 4 ++--
> > arch/riscv/cpu/u-boot.lds | 4 ++--
> > arch/sandbox/config.mk | 4 ++--
> > arch/sandbox/cpu/u-boot-spl.lds | 4 ++--
> > arch/sandbox/cpu/u-boot.lds | 4 ++--
> > arch/sh/cpu/u-boot.lds | 4 ++--
> > arch/x86/cpu/u-boot-64.lds | 6 ++---
> > arch/x86/cpu/u-boot-spl.lds | 6 ++---
> > arch/x86/cpu/u-boot.lds | 6 ++---
> > arch/x86/lib/elf_ia32_efi.lds | 4 ++--
> > arch/x86/lib/elf_x86_64_efi.lds | 4 ++--
>
> @Simon
>
> This looks inconsistent.
>
> Why should section u_boot_list exist in elf_x86_64_efi.lds and not in
> elf_riscv64_efi.lds?
For clarity, you don't mean this is a problem with this patch? But a
problem with the riscv port not including linker lists in its linker
script?
> The sandbox is built and used on all architectures.
The sandbox is built as its own "architecture" arch/sandbox that is
based on something like a Linux environment rather than a hardware
architecture, since sandbox runs in user space.
^ permalink raw reply [flat|nested] 21+ messages in thread
* [PATCH 00/11] Fuzzing and ASAN for sandbox
@ 2022-04-07 9:41 Andrew Scull
0 siblings, 0 replies; 21+ messages in thread
From: Andrew Scull @ 2022-04-07 9:41 UTC (permalink / raw)
To: u-boot; +Cc: sjg, seanga2, Andrew Scull
This series sets up a basic fuzzing infrastructure that works with
sandbox. The example fuzz test towards the end of the series will find
something pretty quickly (that something is fixed by
"virtio_ring: Maintain a shadow copy of descriptors" from another
series).
There is some refactoring to stop using '.' prefixed sections that elf
defines as being for system use and clang's ASAN instrumentation happily
adds redzones between, but that's not what we want for things like
linker lists where the linker script has carefully placed the sections
contiguously.
It may require patches from the "Fix misc ASAN reports" series to be
applied as I've already dealt with the first set of ASAN reports from
running the tests.
Andrew Scull (11):
sandbox: Set the EFI symbols in linker script
sandbox: Migrate getopt section to linker list
linker_lists: Rename sections to remove . prefix
sandbox: Add support for Address Sanitizer
fuzzing_engine: Add fuzzing engine uclass
test: fuzz: Add framework for fuzzing
sandbox: Decouple program entry from sandbox init
sandbox: Add libfuzzer integration
sandbox: Implement fuzzing engine driver
fuzz: virtio: Add fuzzer for vring
RFC: Hack dlmalloc to poison memory
Kconfig | 15 +
arch/Kconfig | 2 +
arch/arc/cpu/u-boot.lds | 4 +-
arch/arm/config.mk | 4 +-
arch/arm/cpu/arm926ejs/sunxi/u-boot-spl.lds | 4 +-
arch/arm/cpu/armv7/sunxi/u-boot-spl.lds | 4 +-
arch/arm/cpu/armv8/u-boot-spl.lds | 4 +-
arch/arm/cpu/armv8/u-boot.lds | 4 +-
arch/arm/cpu/u-boot-spl.lds | 4 +-
arch/arm/cpu/u-boot.lds | 6 +-
arch/arm/mach-at91/arm926ejs/u-boot-spl.lds | 2 +-
arch/arm/mach-at91/armv7/u-boot-spl.lds | 2 +-
arch/arm/mach-omap2/u-boot-spl.lds | 4 +-
arch/arm/mach-orion5x/u-boot-spl.lds | 4 +-
arch/arm/mach-rockchip/u-boot-tpl-v8.lds | 4 +-
arch/arm/mach-zynq/u-boot-spl.lds | 4 +-
arch/arm/mach-zynq/u-boot.lds | 4 +-
arch/m68k/cpu/u-boot.lds | 4 +-
arch/microblaze/cpu/u-boot-spl.lds | 4 +-
arch/microblaze/cpu/u-boot.lds | 4 +-
arch/mips/config.mk | 2 +-
arch/mips/cpu/u-boot-spl.lds | 4 +-
arch/mips/cpu/u-boot.lds | 4 +-
arch/nds32/cpu/n1213/u-boot.lds | 4 +-
arch/nios2/cpu/u-boot.lds | 4 +-
arch/powerpc/cpu/mpc83xx/u-boot.lds | 4 +-
arch/powerpc/cpu/mpc85xx/u-boot-nand.lds | 4 +-
arch/powerpc/cpu/mpc85xx/u-boot-nand_spl.lds | 4 +-
arch/powerpc/cpu/mpc85xx/u-boot-spl.lds | 4 +-
arch/powerpc/cpu/mpc85xx/u-boot.lds | 4 +-
arch/riscv/cpu/u-boot-spl.lds | 4 +-
arch/riscv/cpu/u-boot.lds | 4 +-
arch/sandbox/config.mk | 15 +-
arch/sandbox/cpu/os.c | 97 +++++-
arch/sandbox/cpu/start.c | 12 +-
arch/sandbox/cpu/u-boot-spl.lds | 10 +-
arch/sandbox/cpu/u-boot.lds | 42 +--
arch/sandbox/dts/test.dts | 4 +
arch/sandbox/include/asm/fuzzing_engine.h | 25 ++
arch/sandbox/include/asm/getopt.h | 19 +-
arch/sandbox/include/asm/main.h | 18 ++
arch/sandbox/include/asm/sections.h | 25 --
arch/sandbox/lib/Makefile | 2 +-
arch/sandbox/lib/sections.c | 13 -
arch/sh/cpu/u-boot.lds | 4 +-
arch/x86/cpu/u-boot-64.lds | 6 +-
arch/x86/cpu/u-boot-spl.lds | 6 +-
arch/x86/cpu/u-boot.lds | 6 +-
arch/x86/lib/elf_ia32_efi.lds | 4 +-
arch/x86/lib/elf_x86_64_efi.lds | 4 +-
arch/xtensa/cpu/u-boot.lds | 2 +-
arch/xtensa/include/asm/ldscript.h | 4 +-
board/compulab/cm_t335/u-boot.lds | 4 +-
board/cssi/MCR3000/u-boot.lds | 4 +-
.../davinci/da8xxevm/u-boot-spl-da850evm.lds | 2 +-
board/qualcomm/dragonboard820c/u-boot.lds | 4 +-
board/samsung/common/exynos-uboot-spl.lds | 4 +-
board/synopsys/iot_devkit/u-boot.lds | 4 +-
board/ti/am335x/u-boot.lds | 4 +-
board/vscom/baltos/u-boot.lds | 4 +-
common/dlmalloc.c | 284 +++++++++++++++---
configs/sandbox_defconfig | 1 +
doc/api/linker_lists.rst | 22 +-
doc/develop/commands.rst | 4 +-
doc/develop/driver-model/of-plat.rst | 4 +-
drivers/Kconfig | 2 +
drivers/Makefile | 1 +
drivers/fuzzing_engine/Kconfig | 17 ++
drivers/fuzzing_engine/Makefile | 8 +
.../fuzzing_engine/fuzzing_engine-uclass.c | 28 ++
.../fuzzing_engine/sandbox_fuzzing_engine.c | 35 +++
include/compiler.h | 1 +
include/dm/uclass-id.h | 1 +
include/fuzzing_engine.h | 51 ++++
include/linker_lists.h | 18 +-
include/linux/types.h | 1 +
include/test/fuzz.h | 51 ++++
test/Makefile | 1 +
test/fuzz/Makefile | 8 +
test/fuzz/cmd_fuzz.c | 82 +++++
test/fuzz/virtio.c | 72 +++++
81 files changed, 909 insertions(+), 264 deletions(-)
create mode 100644 arch/sandbox/include/asm/fuzzing_engine.h
create mode 100644 arch/sandbox/include/asm/main.h
delete mode 100644 arch/sandbox/lib/sections.c
create mode 100644 drivers/fuzzing_engine/Kconfig
create mode 100644 drivers/fuzzing_engine/Makefile
create mode 100644 drivers/fuzzing_engine/fuzzing_engine-uclass.c
create mode 100644 drivers/fuzzing_engine/sandbox_fuzzing_engine.c
create mode 100644 include/fuzzing_engine.h
create mode 100644 include/test/fuzz.h
create mode 100644 test/fuzz/Makefile
create mode 100644 test/fuzz/cmd_fuzz.c
create mode 100644 test/fuzz/virtio.c
--
2.35.1.1094.g7c7d902a7c-goog
^ permalink raw reply [flat|nested] 21+ messages in thread
end of thread, other threads:[~2022-05-18 7:02 UTC | newest]
Thread overview: 21+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-04-14 13:59 [PATCH 00/11] Fuzzing and ASAN for sandbox Andrew Scull
2022-04-14 13:59 ` [PATCH v2 01/12] sandbox: Fix EFI runtime symbol placement Andrew Scull
2022-04-14 13:59 ` [PATCH v2 02/12] sandbox: Rename EFI runtime sections Andrew Scull
2022-04-14 13:59 ` [PATCH v2 03/12] sandbox: Migrate getopt section to linker list Andrew Scull
2022-04-29 15:11 ` Tom Rini
2022-05-02 16:24 ` Andrew Scull
2022-05-02 16:27 ` Tom Rini
2022-05-15 20:37 ` Andrew Scull
2022-05-16 10:47 ` Andrew Scull
2022-04-14 13:59 ` [PATCH v2 04/12] linker_lists: Rename sections to remove . prefix Andrew Scull
2022-05-17 8:06 ` Heinrich Schuchardt
2022-05-18 7:02 ` Andrew Scull
2022-04-14 13:59 ` [PATCH v2 05/12] sandbox: Add support for Address Sanitizer Andrew Scull
2022-04-14 13:59 ` [PATCH v2 06/12] fuzzing_engine: Add fuzzing engine uclass Andrew Scull
2022-04-14 13:59 ` [PATCH v2 07/12] test: fuzz: Add framework for fuzzing Andrew Scull
2022-04-14 13:59 ` [PATCH v2 08/12] sandbox: Decouple program entry from sandbox init Andrew Scull
2022-04-14 13:59 ` [PATCH v2 09/12] sandbox: Add libfuzzer integration Andrew Scull
2022-04-14 13:59 ` [PATCH v2 10/12] sandbox: Implement fuzzing engine driver Andrew Scull
2022-04-14 13:59 ` [PATCH v2 11/12] fuzz: virtio: Add fuzzer for vring Andrew Scull
2022-04-14 13:59 ` [PATCH v2 12/12] virtio_ring: Reduce logging noise Andrew Scull
-- strict thread matches above, loose matches on Subject: below --
2022-04-07 9:41 [PATCH 00/11] Fuzzing and ASAN for sandbox Andrew Scull
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