From: Yury Norov <ynorov@caviumnetworks.com>
To: <libc-alpha@sourceware.org>, <linux-kernel@vger.kernel.org>
Cc: <arnd@arndb.de>, <catalin.marinas@arm.com>,
<marcus.shawcroft@arm.com>, <philb@gnu.org>,
<davem@davemloft.net>, <szabolcs.nagy@arm.com>,
<maxim.kuvyrkov@linaro.org>, <joseph@codesourcery.com>,
<pinskia@gmail.com>, Andrew Pinski <apinski@cavium.com>,
Yury Norov <ynorov@caviumnetworks.com>
Subject: [PATCH 03/27] Add dynamic ILP32 AARCH64 relocations to elf.h
Date: Tue, 21 Jun 2016 08:06:47 +0300 [thread overview]
Message-ID: <1466485631-3532-5-git-send-email-ynorov@caviumnetworks.com> (raw)
In-Reply-To: <1466485631-3532-1-git-send-email-ynorov@caviumnetworks.com>
From: Andrew Pinski <apinski@cavium.com>
elf/elf.h (R_AARCH64_P32_ABS32, R_AARCH64_P32_COPY,
R_AARCH64_P32_GLOB_DAT, R_AARCH64_P32_JUMP_SLOT,
R_AARCH64_P32_RELATIVE, R_AARCH64_P32_TLS_DTPMOD,
R_AARCH64_P32_TLS_DTPREL, R_AARCH64_P32_TLS_TPREL,
R_AARCH64_P32_TLSDESC, R_AARCH64_P32_IRELATIVE): Define.
[AARCH64] Use ELFW and ElfW macros instead of ELF64 and Elf64 names.
* sysdeps/aarch64/dl-machine.h
(elf_machine_runtime_setup): Use ElfW(Addr).
(elf_machine_rela): Use ELFW(R_TYPE).
(elf_machine_lazy_rel): Likewise.
[AARCH64] Introduce AARCH64_R so we can reuse the reloc code between ILP32 and LP64.
* sysdeps/aarch64/sysdep.h (AARCH64_R): Define.
* sysdeps/aarch64/dl-irel.h: Include sysdep.h
(elf_irela): Use reloc names based on AARCH64_R.
* sysdeps/aarch64/dl-machine.h: Include sysdep.h
(elf_machine_type_class): Use reloc names based on AARCH64_R.
(elf_machine_rela): Likewise.
(elf_machine_lazy_rel): Likewise.
Signed-off-by: Yury Norov <ynorov@caviumnetworks.com>
---
sysdeps/aarch64/dl-irel.h | 3 ++-
sysdeps/aarch64/dl-machine.h | 53 +++++++++++++++++++++++---------------------
sysdeps/aarch64/sysdep.h | 6 +++++
3 files changed, 36 insertions(+), 26 deletions(-)
diff --git a/sysdeps/aarch64/dl-irel.h b/sysdeps/aarch64/dl-irel.h
index 63a8e50..460454f 100644
--- a/sysdeps/aarch64/dl-irel.h
+++ b/sysdeps/aarch64/dl-irel.h
@@ -23,6 +23,7 @@
#include <stdio.h>
#include <unistd.h>
#include <ldsodefs.h>
+#include <sysdep.h>
#define ELF_MACHINE_IRELA 1
@@ -40,7 +41,7 @@ elf_irela (const ElfW(Rela) *reloc)
ElfW(Addr) *const reloc_addr = (void *) reloc->r_offset;
const unsigned long int r_type = ELFW(R_TYPE) (reloc->r_info);
- if (__glibc_likely (r_type == R_AARCH64_IRELATIVE))
+ if (__glibc_likely (r_type == AARCH64_R(IRELATIVE)))
{
ElfW(Addr) value = elf_ifunc_invoke (reloc->r_addend);
*reloc_addr = value;
diff --git a/sysdeps/aarch64/dl-machine.h b/sysdeps/aarch64/dl-machine.h
index 282805e..a16cb11 100644
--- a/sysdeps/aarch64/dl-machine.h
+++ b/sysdeps/aarch64/dl-machine.h
@@ -21,6 +21,7 @@
#define ELF_MACHINE_NAME "aarch64"
+#include <sysdep.h>
#include <tls.h>
#include <dl-tlsdesc.h>
#include <dl-irel.h>
@@ -190,15 +191,15 @@ _dl_start_user: \n\
");
#define elf_machine_type_class(type) \
- ((((type) == R_AARCH64_JUMP_SLOT || \
- (type) == R_AARCH64_TLS_DTPMOD || \
- (type) == R_AARCH64_TLS_DTPREL || \
- (type) == R_AARCH64_TLS_TPREL || \
- (type) == R_AARCH64_TLSDESC) * ELF_RTYPE_CLASS_PLT) \
- | (((type) == R_AARCH64_COPY) * ELF_RTYPE_CLASS_COPY) \
- | (((type) == R_AARCH64_GLOB_DAT) * ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA))
+ ((((type) == AARCH64_R(JUMP_SLOT) || \
+ (type) == AARCH64_R(TLS_DTPMOD) || \
+ (type) == AARCH64_R(TLS_DTPREL) || \
+ (type) == AARCH64_R(TLS_TPREL) || \
+ (type) == AARCH64_R(TLSDESC)) * ELF_RTYPE_CLASS_PLT) \
+ | (((type) == AARCH64_R(COPY)) * ELF_RTYPE_CLASS_COPY) \
+ | (((type) == AARCH64_R(GLOB_DAT)) * ELF_RTYPE_CLASS_EXTERN_PROTECTED_DATA))
-#define ELF_MACHINE_JMP_SLOT R_AARCH64_JUMP_SLOT
+#define ELF_MACHINE_JMP_SLOT AARCH64_R(JUMP_SLOT)
/* AArch64 uses RELA not REL */
#define ELF_MACHINE_NO_REL 1
@@ -237,9 +238,9 @@ elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
void *const reloc_addr_arg, int skip_ifunc)
{
ElfW(Addr) *const reloc_addr = reloc_addr_arg;
- const unsigned int r_type = ELF64_R_TYPE (reloc->r_info);
+ const unsigned int r_type = ELFW(R_TYPE) (reloc->r_info);
- if (__builtin_expect (r_type == R_AARCH64_RELATIVE, 0))
+ if (__builtin_expect (r_type == AARCH64_R(RELATIVE), 0))
*reloc_addr = map->l_addr + reloc->r_addend;
else if (__builtin_expect (r_type == R_AARCH64_NONE, 0))
return;
@@ -257,7 +258,7 @@ elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
switch (r_type)
{
- case R_AARCH64_COPY:
+ case AARCH64_R(COPY):
if (sym == NULL)
break;
@@ -275,15 +276,17 @@ elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
MIN (sym->st_size, refsym->st_size));
break;
- case R_AARCH64_RELATIVE:
- case R_AARCH64_GLOB_DAT:
- case R_AARCH64_JUMP_SLOT:
- case R_AARCH64_ABS32:
- case R_AARCH64_ABS64:
+ case AARCH64_R(RELATIVE):
+ case AARCH64_R(GLOB_DAT):
+ case AARCH64_R(JUMP_SLOT):
+ case AARCH64_R(ABS32):
+#ifdef __LP64__
+ case AARCH64_R(ABS64):
+#endif
*reloc_addr = value + reloc->r_addend;
break;
- case R_AARCH64_TLSDESC:
+ case AARCH64_R(TLSDESC):
{
struct tlsdesc volatile *td =
(struct tlsdesc volatile *)reloc_addr;
@@ -318,7 +321,7 @@ elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
break;
}
- case R_AARCH64_TLS_DTPMOD:
+ case AARCH64_R(TLS_DTPMOD):
#ifdef RTLD_BOOTSTRAP
*reloc_addr = 1;
#else
@@ -329,12 +332,12 @@ elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
#endif
break;
- case R_AARCH64_TLS_DTPREL:
+ case AARCH64_R(TLS_DTPREL):
if (sym)
*reloc_addr = sym->st_value + reloc->r_addend;
break;
- case R_AARCH64_TLS_TPREL:
+ case AARCH64_R(TLS_TPREL):
if (sym)
{
CHECK_STATIC_TLS (map, sym_map);
@@ -343,7 +346,7 @@ elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
}
break;
- case R_AARCH64_IRELATIVE:
+ case AARCH64_R(IRELATIVE):
value = map->l_addr + reloc->r_addend;
value = elf_ifunc_invoke (value);
*reloc_addr = value;
@@ -374,16 +377,16 @@ elf_machine_lazy_rel (struct link_map *map,
int skip_ifunc)
{
ElfW(Addr) *const reloc_addr = (void *) (l_addr + reloc->r_offset);
- const unsigned int r_type = ELF64_R_TYPE (reloc->r_info);
+ const unsigned int r_type = ELFW(R_TYPE) (reloc->r_info);
/* Check for unexpected PLT reloc type. */
- if (__builtin_expect (r_type == R_AARCH64_JUMP_SLOT, 1))
+ if (__builtin_expect (r_type == AARCH64_R(JUMP_SLOT), 1))
{
if (__builtin_expect (map->l_mach.plt, 0) == 0)
*reloc_addr += l_addr;
else
*reloc_addr = map->l_mach.plt;
}
- else if (__builtin_expect (r_type == R_AARCH64_TLSDESC, 1))
+ else if (__builtin_expect (r_type == AARCH64_R(TLSDESC), 1))
{
struct tlsdesc volatile *td =
(struct tlsdesc volatile *)reloc_addr;
@@ -392,7 +395,7 @@ elf_machine_lazy_rel (struct link_map *map,
td->entry = (void*)(D_PTR (map, l_info[ADDRIDX (DT_TLSDESC_PLT)])
+ map->l_addr);
}
- else if (__glibc_unlikely (r_type == R_AARCH64_IRELATIVE))
+ else if (__glibc_unlikely (r_type == AARCH64_R(IRELATIVE)))
{
ElfW(Addr) value = map->l_addr + reloc->r_addend;
if (__glibc_likely (!skip_ifunc))
diff --git a/sysdeps/aarch64/sysdep.h b/sysdeps/aarch64/sysdep.h
index 594ab0b..4cb028f 100644
--- a/sysdeps/aarch64/sysdep.h
+++ b/sysdeps/aarch64/sysdep.h
@@ -21,6 +21,12 @@
#include <sysdeps/generic/sysdep.h>
+#ifdef __LP64__
+#define AARCH64_R(NAME) R_AARCH64_ ## NAME
+#else
+#define AARCH64_R(NAME) R_AARCH64_P32_ ## NAME
+#endif
+
#ifdef __ASSEMBLER__
/* Syntactic details of assembler. */
--
2.7.4
next prev parent reply other threads:[~2016-06-21 6:44 UTC|newest]
Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-21 5:06 [RFC PATCH 00/27] ARM64: support ILP32 Yury Norov
2016-06-21 5:06 ` [PATCH 01/27] [AARCH64] Fix utmp struct for compatibility reasons Yury Norov
2016-06-21 10:14 ` Szabolcs Nagy
2016-06-23 4:35 ` Yury Norov
2016-06-23 5:07 ` Andrew Pinski
2016-06-23 7:32 ` Andreas Schwab
2016-06-23 7:36 ` Yury Norov
2016-06-23 7:37 ` Andrew Pinski
2016-06-24 11:33 ` Florian Weimer
2016-06-23 7:36 ` Andrew Pinski
2016-06-23 7:56 ` Andreas Schwab
2016-06-24 11:38 ` Florian Weimer
2016-06-25 23:26 ` Andrew Pinski
2016-06-26 6:13 ` Yury Norov
2016-06-21 10:24 ` Joseph Myers
2016-06-21 5:06 ` [PATCH] no wrappers Yury Norov
2016-06-21 6:04 ` Yury Norov
2016-06-21 5:06 ` [PATCH 02/27] [AARCH64] Add header guards to sysdep.h headers Yury Norov
2016-06-21 10:23 ` Szabolcs Nagy
2016-06-21 5:06 ` Yury Norov [this message]
2016-06-21 10:26 ` [PATCH 03/27] Add dynamic ILP32 AARCH64 relocations to elf.h Joseph Myers
2016-06-21 5:06 ` [PATCH 04/27] [AARCH64] Add PTR_REG, PTR_LOG_SIZE, and PTR_SIZE. Use it in LDST_PCREL and LDST_GLOBAL Yury Norov
2016-06-21 7:54 ` Andreas Schwab
2016-06-21 8:36 ` Yury Norov
2016-06-21 9:13 ` Andreas Schwab
2016-06-21 5:06 ` [PATCH 05/27] [AARCH64] Use PTR_REG in crti.S Yury Norov
2016-06-21 10:28 ` Joseph Myers
2016-06-22 6:02 ` Yury Norov
2016-06-22 7:45 ` Andreas Schwab
2016-06-22 10:37 ` Joseph Myers
2016-06-21 5:06 ` [PATCH 06/27] [AARCH64] Use PTR_REG/PTR_SIZE/PTR_SIZE_LOG in dl-tlsesc.S Yury Norov
2016-06-21 8:05 ` Andreas Schwab
2016-06-21 5:06 ` [PATCH 07/27] [AARCH64] Use PTR_* macros in dl-trampoline.S Yury Norov
2016-06-21 5:06 ` [PATCH 08/27] [AARCH64] Use PTR_* in start.S Yury Norov
2016-06-21 5:06 ` [PATCH 09/27] [AARCH64] Use PTR_REG in getcontext.S Yury Norov
2016-06-21 5:06 ` [PATCH 10/27] [AARCH64] Detect ILP32 in configure scripts Yury Norov
2016-06-21 8:01 ` Andreas Schwab
2016-06-21 10:30 ` Joseph Myers
2016-06-21 5:06 ` [PATCH 11/27] [AARCH64] Syscalls for ILP32 are passed always via 64bit values Yury Norov
2016-06-21 7:56 ` Andreas Schwab
2016-06-21 11:42 ` Zhangjian (Bamvor)
2016-06-21 11:54 ` Andreas Schwab
2016-06-21 11:57 ` Zhangjian (Bamvor)
2016-06-22 15:49 ` Catalin Marinas
2016-06-23 6:32 ` Yury Norov
2016-06-21 5:06 ` [PATCH 12/27] [AARCH64] Add ILP32 support to elf_machine_load_address Yury Norov
2016-06-21 5:06 ` [PATCH 13/27] [AARCH64] Set up wordsize for ILP32 Yury Norov
2016-06-21 5:06 ` [PATCH 14/27] [AARCH64] Add ILP32 to makefiles Yury Norov
2016-06-21 5:06 ` [PATCH 15/27] [AARCH64] Add support to ldconfig for ILP32 and libilp32 Yury Norov
2016-06-21 7:59 ` Andreas Schwab
2016-06-21 5:07 ` [PATCH 16/27] [AARCH64] Add ILP32 ld.so to the known interpreter names Yury Norov
2016-06-21 5:07 ` [PATCH 17/27] [AARCH64] Add ldd-rewrite.sed so that ilp32 ld.so can be found Yury Norov
2016-06-21 5:07 ` [PATCH 18/27] [AARCH64] Add kernel_sigaction.h for AARCH64 ILP32 Yury Norov
2016-06-21 7:45 ` Andreas Schwab
2016-06-21 7:52 ` Zhangjian (Bamvor)
2016-06-21 5:07 ` [PATCH 19/27] [AARCH64] Add typesizes.h for ILP32 Yury Norov
2016-06-21 7:58 ` Andreas Schwab
2016-06-21 11:59 ` Zhangjian (Bamvor)
2016-06-23 4:54 ` Yury Norov
2016-06-21 5:07 ` [PATCH 20/27] [AARCH64] Make lp64 and ilp32 directories Yury Norov
2016-06-21 8:12 ` Andreas Schwab
2016-06-21 10:44 ` Joseph Myers
2016-06-27 7:56 ` Andreas Schwab
2016-06-27 8:03 ` Arnd Bergmann
2016-06-21 5:07 ` [PATCH 21/27] [AARCH64] ILP32: introduce syscalls that pass off_t Yury Norov
2016-06-21 10:35 ` Joseph Myers
2016-06-23 5:57 ` Yury Norov
2016-06-23 11:57 ` Joseph Myers
2016-06-21 5:07 ` [PATCH 22/27] [AARCH64] ILP32: support stat syscall family Yury Norov
2016-06-21 8:38 ` Andreas Schwab
2016-06-21 10:46 ` Joseph Myers
2016-06-27 7:51 ` Andreas Schwab
2016-06-21 5:07 ` [PATCH 23/27] [AARCH64] delouse input arguments in system functions Yury Norov
2016-06-21 8:08 ` Andreas Schwab
2016-06-21 10:36 ` Joseph Myers
2016-06-21 15:42 ` Arnd Bergmann
2016-06-21 16:37 ` Andrew Pinski
2016-06-21 5:07 ` [PATCH 24/27] Add support for AT_ARM64_MIDR Yury Norov
2016-06-21 8:09 ` Andreas Schwab
2016-06-21 5:07 ` [PATCH 25/27] [AARCH64] Fix ILP32 warning Yury Norov
2016-06-21 10:44 ` Joseph Myers
2016-06-21 5:07 ` [PATCH 26/27] [AARCH64] Change type of __align to long long Yury Norov
2016-06-21 8:10 ` Andreas Schwab
2016-06-21 10:57 ` Zhangjian (Bamvor)
2016-07-06 10:36 ` Andreas Schwab
2016-06-21 5:07 ` [PATCH 27/27] Fix PTRDIFF_MIN/PTRDIFF_MIN and PTRDIFF_MIN for ILP32 Yury Norov
2016-06-21 10:32 ` Joseph Myers
2016-06-21 10:23 ` [RFC PATCH 00/27] ARM64: support ILP32 Joseph Myers
2016-06-21 12:06 ` Zhangjian (Bamvor)
2016-06-22 2:04 ` Yury Norov
2016-06-28 15:26 ` Yury Norov
2016-06-21 15:10 ` Szabolcs Nagy
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