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* [PATCH 0/2] Fix some issue on RV32
@ 2018-11-12  4:07 zongbox
  2018-11-12  4:07 ` Zong Li
                   ` (2 more replies)
  0 siblings, 3 replies; 12+ messages in thread
From: zongbox @ 2018-11-12  4:07 UTC (permalink / raw)
  To: linux-riscv

This patches fix the build fail and kernel module install failed on RV32.

Zong Li (2):
  RISC-V: Request stat64 on RV32
  RISC-V: Support MODULE_SECTIONS mechanism on RV32

 arch/riscv/Kconfig                  |  2 +-
 arch/riscv/include/asm/module.h     | 28 +++++++++++++++-------------
 arch/riscv/include/asm/unistd.h     |  1 +
 arch/riscv/kernel/module-sections.c | 30 ++++++++++++++++--------------
 4 files changed, 33 insertions(+), 28 deletions(-)

-- 
2.7.4

^ permalink raw reply	[flat|nested] 12+ messages in thread

* [PATCH 0/2] Fix some issue on RV32
  2018-11-12  4:07 [PATCH 0/2] Fix some issue on RV32 zongbox
@ 2018-11-12  4:07 ` Zong Li
  2018-11-12  4:07 ` [PATCH 1/2] RISC-V: Request stat64 " zongbox
  2018-11-12  4:07 ` [PATCH 2/2] RISC-V: Support MODULE_SECTIONS mechanism " zongbox
  2 siblings, 0 replies; 12+ messages in thread
From: Zong Li @ 2018-11-12  4:07 UTC (permalink / raw)
  To: palmer, aou, linux-riscv, linux-kernel, zong; +Cc: Zong Li

This patches fix the build fail and kernel module install failed on RV32.

Zong Li (2):
  RISC-V: Request stat64 on RV32
  RISC-V: Support MODULE_SECTIONS mechanism on RV32

 arch/riscv/Kconfig                  |  2 +-
 arch/riscv/include/asm/module.h     | 28 +++++++++++++++-------------
 arch/riscv/include/asm/unistd.h     |  1 +
 arch/riscv/kernel/module-sections.c | 30 ++++++++++++++++--------------
 4 files changed, 33 insertions(+), 28 deletions(-)

-- 
2.7.4


_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv

^ permalink raw reply	[flat|nested] 12+ messages in thread

* [PATCH 1/2] RISC-V: Request stat64 on RV32
  2018-11-12  4:07 [PATCH 0/2] Fix some issue on RV32 zongbox
  2018-11-12  4:07 ` Zong Li
@ 2018-11-12  4:07 ` " zongbox
  2018-11-12  4:07   ` Zong Li
  2018-11-12  6:19   ` david.abdurachmanov
  2018-11-12  4:07 ` [PATCH 2/2] RISC-V: Support MODULE_SECTIONS mechanism " zongbox
  2 siblings, 2 replies; 12+ messages in thread
From: zongbox @ 2018-11-12  4:07 UTC (permalink / raw)
  To: linux-riscv

The stat64 family that is used on 32-bit architectures to replace
newstat.

Since commit 67314ec7b0250290cc85eaa7a2f88a8ddb9e8547 ("RISC-V: Request
newstat syscalls"), the RV32 build fail with undeclared 'sys_fstatat64'

Signed-off-by: Zong Li <zong@andestech.com>
---
 arch/riscv/include/asm/unistd.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/riscv/include/asm/unistd.h b/arch/riscv/include/asm/unistd.h
index eff7aa9..a4aade9 100644
--- a/arch/riscv/include/asm/unistd.h
+++ b/arch/riscv/include/asm/unistd.h
@@ -18,5 +18,6 @@
 
 #define __ARCH_WANT_NEW_STAT
 #define __ARCH_WANT_SYS_CLONE
+#define __ARCH_WANT_STAT64
 #include <uapi/asm/unistd.h>
 #include <uapi/asm/syscalls.h>
-- 
2.7.4

^ permalink raw reply	[flat|nested] 12+ messages in thread

* [PATCH 1/2] RISC-V: Request stat64 on RV32
  2018-11-12  4:07 ` [PATCH 1/2] RISC-V: Request stat64 " zongbox
@ 2018-11-12  4:07   ` Zong Li
  2018-11-12  6:19   ` david.abdurachmanov
  1 sibling, 0 replies; 12+ messages in thread
From: Zong Li @ 2018-11-12  4:07 UTC (permalink / raw)
  To: palmer, aou, linux-riscv, linux-kernel, zong; +Cc: Zong Li

The stat64 family that is used on 32-bit architectures to replace
newstat.

Since commit 67314ec7b0250290cc85eaa7a2f88a8ddb9e8547 ("RISC-V: Request
newstat syscalls"), the RV32 build fail with undeclared 'sys_fstatat64'

Signed-off-by: Zong Li <zong@andestech.com>
---
 arch/riscv/include/asm/unistd.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/riscv/include/asm/unistd.h b/arch/riscv/include/asm/unistd.h
index eff7aa9..a4aade9 100644
--- a/arch/riscv/include/asm/unistd.h
+++ b/arch/riscv/include/asm/unistd.h
@@ -18,5 +18,6 @@
 
 #define __ARCH_WANT_NEW_STAT
 #define __ARCH_WANT_SYS_CLONE
+#define __ARCH_WANT_STAT64
 #include <uapi/asm/unistd.h>
 #include <uapi/asm/syscalls.h>
-- 
2.7.4


_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv

^ permalink raw reply	[flat|nested] 12+ messages in thread

* [PATCH 2/2] RISC-V: Support MODULE_SECTIONS mechanism on RV32
  2018-11-12  4:07 [PATCH 0/2] Fix some issue on RV32 zongbox
  2018-11-12  4:07 ` Zong Li
  2018-11-12  4:07 ` [PATCH 1/2] RISC-V: Request stat64 " zongbox
@ 2018-11-12  4:07 ` " zongbox
  2018-11-12  4:07   ` Zong Li
  2 siblings, 1 reply; 12+ messages in thread
From: zongbox @ 2018-11-12  4:07 UTC (permalink / raw)
  To: linux-riscv

This patch supports dynamic generate got and plt sections mechanism on
rv32. It contains the modification as follows:
 - Always enable MODULE_SECTIONS (both rv64 and rv32)
 - Change the fixed size type.

This patch had been tested by following modules:

btrfs 6795991 0 - Live 0xa544b000
test_static_keys 17304 0 - Live 0xa28be000
zstd_compress 1198986 1 btrfs, Live 0xa2a25000
zstd_decompress 608112 1 btrfs, Live 0xa24e7000
lzo 8787 0 - Live 0xa2049000
xor 27461 1 btrfs, Live 0xa2041000
zram 78849 0 - Live 0xa2276000
netdevsim 55909 0 - Live 0xa202d000
tun 211534 0 - Live 0xa21b5000
fuse 566049 0 - Live 0xa25fb000
nfs_layout_flexfiles 192597 0 - Live 0xa229b000
ramoops 74895 0 - Live 0xa2019000
xfs 3973221 0 - Live 0xa507f000
libcrc32c 3053 2 btrfs,xfs, Live 0xa34af000
lzo_compress 17302 2 btrfs,lzo, Live 0xa347d000
lzo_decompress 7178 2 btrfs,lzo, Live 0xa3451000
raid6_pq 142086 1 btrfs, Live 0xa33a4000
reed_solomon 31022 1 ramoops, Live 0xa31eb000
test_bitmap 3734 0 - Live 0xa31af000
test_bpf 1588736 0 - Live 0xa2c11000
test_kmod 41161 0 - Live 0xa29f8000
test_module 1356 0 - Live 0xa299e000
test_printf 6024 0 [permanent], Live 0xa2971000
test_static_key_base 5797 1 test_static_keys, Live 0xa2931000
test_user_copy 4382 0 - Live 0xa28c9000
xxhash 70501 2 zstd_compress,zstd_decompress, Live 0xa2055000

Signed-off-by: Zong Li <zong@andestech.com>
---
 arch/riscv/Kconfig                  |  2 +-
 arch/riscv/include/asm/module.h     | 28 +++++++++++++++-------------
 arch/riscv/kernel/module-sections.c | 30 ++++++++++++++++--------------
 3 files changed, 32 insertions(+), 28 deletions(-)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 55da93f..477f1e8 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -39,6 +39,7 @@ config RISCV
 	select SYSCTL_EXCEPTION_TRACE
 	select HAVE_ARCH_TRACEHOOK
 	select MODULES_USE_ELF_RELA if MODULES
+	select MODULE_SECTIONS if MODULES
 	select THREAD_INFO_IN_TASK
 	select RISCV_TIMER
 	select GENERIC_IRQ_MULTI_HANDLER
@@ -149,7 +150,6 @@ choice
 		bool "2GiB"
 	config MAXPHYSMEM_128GB
 		depends on 64BIT && CMODEL_MEDANY
-		select MODULE_SECTIONS if MODULES
 		bool "128GiB"
 endchoice
 
diff --git a/arch/riscv/include/asm/module.h b/arch/riscv/include/asm/module.h
index 349df33..27328fe 100644
--- a/arch/riscv/include/asm/module.h
+++ b/arch/riscv/include/asm/module.h
@@ -8,12 +8,12 @@
 
 #define MODULE_ARCH_VERMAGIC    "riscv"
 
-u64 module_emit_got_entry(struct module *mod, u64 val);
-u64 module_emit_plt_entry(struct module *mod, u64 val);
+unsigned long module_emit_got_entry(struct module *mod, unsigned long val);
+unsigned long module_emit_plt_entry(struct module *mod, unsigned long val);
 
 #ifdef CONFIG_MODULE_SECTIONS
 struct mod_section {
-	struct elf64_shdr *shdr;
+	Elf_Shdr *shdr;
 	int num_entries;
 	int max_entries;
 };
@@ -25,18 +25,18 @@ struct mod_arch_specific {
 };
 
 struct got_entry {
-	u64 symbol_addr;	/* the real variable address */
+	unsigned long symbol_addr;	/* the real variable address */
 };
 
-static inline struct got_entry emit_got_entry(u64 val)
+static inline struct got_entry emit_got_entry(unsigned long val)
 {
 	return (struct got_entry) {val};
 }
 
-static inline struct got_entry *get_got_entry(u64 val,
+static inline struct got_entry *get_got_entry(unsigned long val,
 					      const struct mod_section *sec)
 {
-	struct got_entry *got = (struct got_entry *)sec->shdr->sh_addr;
+	struct got_entry *got = (struct got_entry *)(sec->shdr->sh_addr);
 	int i;
 	for (i = 0; i < sec->num_entries; i++) {
 		if (got[i].symbol_addr == val)
@@ -61,7 +61,9 @@ struct plt_entry {
 #define REG_T0     0x5
 #define REG_T1     0x6
 
-static inline struct plt_entry emit_plt_entry(u64 val, u64 plt, u64 got_plt)
+static inline struct plt_entry emit_plt_entry(unsigned long val,
+					      unsigned long plt,
+					      unsigned long got_plt)
 {
 	/*
 	 * U-Type encoding:
@@ -75,7 +77,7 @@ static inline struct plt_entry emit_plt_entry(u64 val, u64 plt, u64 got_plt)
 	 * +------------+------------+--------+----------+----------+
 	 *
 	 */
-	u64 offset = got_plt - plt;
+	unsigned long offset = got_plt - plt;
 	u32 hi20 = (offset + 0x800) & 0xfffff000;
 	u32 lo12 = (offset - hi20);
 	return (struct plt_entry) {
@@ -85,7 +87,7 @@ static inline struct plt_entry emit_plt_entry(u64 val, u64 plt, u64 got_plt)
 	};
 }
 
-static inline int get_got_plt_idx(u64 val, const struct mod_section *sec)
+static inline int get_got_plt_idx(unsigned long val, const struct mod_section *sec)
 {
 	struct got_entry *got_plt = (struct got_entry *)sec->shdr->sh_addr;
 	int i;
@@ -96,9 +98,9 @@ static inline int get_got_plt_idx(u64 val, const struct mod_section *sec)
 	return -1;
 }
 
-static inline struct plt_entry *get_plt_entry(u64 val,
-				      const struct mod_section *sec_plt,
-				      const struct mod_section *sec_got_plt)
+static inline struct plt_entry *get_plt_entry(unsigned long val,
+					      const struct mod_section *sec_plt,
+					      const struct mod_section *sec_got_plt)
 {
 	struct plt_entry *plt = (struct plt_entry *)sec_plt->shdr->sh_addr;
 	int got_plt_idx = get_got_plt_idx(val, sec_got_plt);
diff --git a/arch/riscv/kernel/module-sections.c b/arch/riscv/kernel/module-sections.c
index bbbd26e..e8b991a 100644
--- a/arch/riscv/kernel/module-sections.c
+++ b/arch/riscv/kernel/module-sections.c
@@ -9,14 +9,14 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 
-u64 module_emit_got_entry(struct module *mod, u64 val)
+unsigned long module_emit_got_entry(struct module *mod, unsigned long val)
 {
 	struct mod_section *got_sec = &mod->arch.got;
 	int i = got_sec->num_entries;
 	struct got_entry *got = get_got_entry(val, got_sec);
 
 	if (got)
-		return (u64)got;
+		return (unsigned long)got;
 
 	/* There is no duplicate entry, create a new one */
 	got = (struct got_entry *)got_sec->shdr->sh_addr;
@@ -25,10 +25,10 @@ u64 module_emit_got_entry(struct module *mod, u64 val)
 	got_sec->num_entries++;
 	BUG_ON(got_sec->num_entries > got_sec->max_entries);
 
-	return (u64)&got[i];
+	return (unsigned long)&got[i];
 }
 
-u64 module_emit_plt_entry(struct module *mod, u64 val)
+unsigned long module_emit_plt_entry(struct module *mod, unsigned long val)
 {
 	struct mod_section *got_plt_sec = &mod->arch.got_plt;
 	struct got_entry *got_plt;
@@ -37,27 +37,29 @@ u64 module_emit_plt_entry(struct module *mod, u64 val)
 	int i = plt_sec->num_entries;
 
 	if (plt)
-		return (u64)plt;
+		return (unsigned long)plt;
 
 	/* There is no duplicate entry, create a new one */
 	got_plt = (struct got_entry *)got_plt_sec->shdr->sh_addr;
 	got_plt[i] = emit_got_entry(val);
 	plt = (struct plt_entry *)plt_sec->shdr->sh_addr;
-	plt[i] = emit_plt_entry(val, (u64)&plt[i], (u64)&got_plt[i]);
+	plt[i] = emit_plt_entry(val,
+                                (unsigned long)&plt[i],
+                                (unsigned long)&got_plt[i]);
 
 	plt_sec->num_entries++;
 	got_plt_sec->num_entries++;
 	BUG_ON(plt_sec->num_entries > plt_sec->max_entries);
 
-	return (u64)&plt[i];
+	return (unsigned long)&plt[i];
 }
 
-static int is_rela_equal(const Elf64_Rela *x, const Elf64_Rela *y)
+static int is_rela_equal(const Elf_Rela *x, const Elf_Rela *y)
 {
 	return x->r_info == y->r_info && x->r_addend == y->r_addend;
 }
 
-static bool duplicate_rela(const Elf64_Rela *rela, int idx)
+static bool duplicate_rela(const Elf_Rela *rela, int idx)
 {
 	int i;
 	for (i = 0; i < idx; i++) {
@@ -67,13 +69,13 @@ static bool duplicate_rela(const Elf64_Rela *rela, int idx)
 	return false;
 }
 
-static void count_max_entries(Elf64_Rela *relas, int num,
+static void count_max_entries(Elf_Rela *relas, int num,
 			      unsigned int *plts, unsigned int *gots)
 {
 	unsigned int type, i;
 
 	for (i = 0; i < num; i++) {
-		type = ELF64_R_TYPE(relas[i].r_info);
+		type = ELF_RISCV_R_TYPE(relas[i].r_info);
 		if (type == R_RISCV_CALL_PLT) {
 			if (!duplicate_rela(relas, i))
 				(*plts)++;
@@ -118,9 +120,9 @@ int module_frob_arch_sections(Elf_Ehdr *ehdr, Elf_Shdr *sechdrs,
 
 	/* Calculate the maxinum number of entries */
 	for (i = 0; i < ehdr->e_shnum; i++) {
-		Elf64_Rela *relas = (void *)ehdr + sechdrs[i].sh_offset;
-		int num_rela = sechdrs[i].sh_size / sizeof(Elf64_Rela);
-		Elf64_Shdr *dst_sec = sechdrs + sechdrs[i].sh_info;
+		Elf_Rela *relas = (void *)ehdr + sechdrs[i].sh_offset;
+		int num_rela = sechdrs[i].sh_size / sizeof(Elf_Rela);
+		Elf_Shdr *dst_sec = sechdrs + sechdrs[i].sh_info;
 
 		if (sechdrs[i].sh_type != SHT_RELA)
 			continue;
-- 
2.7.4

^ permalink raw reply	[flat|nested] 12+ messages in thread

* [PATCH 2/2] RISC-V: Support MODULE_SECTIONS mechanism on RV32
  2018-11-12  4:07 ` [PATCH 2/2] RISC-V: Support MODULE_SECTIONS mechanism " zongbox
@ 2018-11-12  4:07   ` Zong Li
  0 siblings, 0 replies; 12+ messages in thread
From: Zong Li @ 2018-11-12  4:07 UTC (permalink / raw)
  To: palmer, aou, linux-riscv, linux-kernel, zong; +Cc: Zong Li

This patch supports dynamic generate got and plt sections mechanism on
rv32. It contains the modification as follows:
 - Always enable MODULE_SECTIONS (both rv64 and rv32)
 - Change the fixed size type.

This patch had been tested by following modules:

btrfs 6795991 0 - Live 0xa544b000
test_static_keys 17304 0 - Live 0xa28be000
zstd_compress 1198986 1 btrfs, Live 0xa2a25000
zstd_decompress 608112 1 btrfs, Live 0xa24e7000
lzo 8787 0 - Live 0xa2049000
xor 27461 1 btrfs, Live 0xa2041000
zram 78849 0 - Live 0xa2276000
netdevsim 55909 0 - Live 0xa202d000
tun 211534 0 - Live 0xa21b5000
fuse 566049 0 - Live 0xa25fb000
nfs_layout_flexfiles 192597 0 - Live 0xa229b000
ramoops 74895 0 - Live 0xa2019000
xfs 3973221 0 - Live 0xa507f000
libcrc32c 3053 2 btrfs,xfs, Live 0xa34af000
lzo_compress 17302 2 btrfs,lzo, Live 0xa347d000
lzo_decompress 7178 2 btrfs,lzo, Live 0xa3451000
raid6_pq 142086 1 btrfs, Live 0xa33a4000
reed_solomon 31022 1 ramoops, Live 0xa31eb000
test_bitmap 3734 0 - Live 0xa31af000
test_bpf 1588736 0 - Live 0xa2c11000
test_kmod 41161 0 - Live 0xa29f8000
test_module 1356 0 - Live 0xa299e000
test_printf 6024 0 [permanent], Live 0xa2971000
test_static_key_base 5797 1 test_static_keys, Live 0xa2931000
test_user_copy 4382 0 - Live 0xa28c9000
xxhash 70501 2 zstd_compress,zstd_decompress, Live 0xa2055000

Signed-off-by: Zong Li <zong@andestech.com>
---
 arch/riscv/Kconfig                  |  2 +-
 arch/riscv/include/asm/module.h     | 28 +++++++++++++++-------------
 arch/riscv/kernel/module-sections.c | 30 ++++++++++++++++--------------
 3 files changed, 32 insertions(+), 28 deletions(-)

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 55da93f..477f1e8 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -39,6 +39,7 @@ config RISCV
 	select SYSCTL_EXCEPTION_TRACE
 	select HAVE_ARCH_TRACEHOOK
 	select MODULES_USE_ELF_RELA if MODULES
+	select MODULE_SECTIONS if MODULES
 	select THREAD_INFO_IN_TASK
 	select RISCV_TIMER
 	select GENERIC_IRQ_MULTI_HANDLER
@@ -149,7 +150,6 @@ choice
 		bool "2GiB"
 	config MAXPHYSMEM_128GB
 		depends on 64BIT && CMODEL_MEDANY
-		select MODULE_SECTIONS if MODULES
 		bool "128GiB"
 endchoice
 
diff --git a/arch/riscv/include/asm/module.h b/arch/riscv/include/asm/module.h
index 349df33..27328fe 100644
--- a/arch/riscv/include/asm/module.h
+++ b/arch/riscv/include/asm/module.h
@@ -8,12 +8,12 @@
 
 #define MODULE_ARCH_VERMAGIC    "riscv"
 
-u64 module_emit_got_entry(struct module *mod, u64 val);
-u64 module_emit_plt_entry(struct module *mod, u64 val);
+unsigned long module_emit_got_entry(struct module *mod, unsigned long val);
+unsigned long module_emit_plt_entry(struct module *mod, unsigned long val);
 
 #ifdef CONFIG_MODULE_SECTIONS
 struct mod_section {
-	struct elf64_shdr *shdr;
+	Elf_Shdr *shdr;
 	int num_entries;
 	int max_entries;
 };
@@ -25,18 +25,18 @@ struct mod_arch_specific {
 };
 
 struct got_entry {
-	u64 symbol_addr;	/* the real variable address */
+	unsigned long symbol_addr;	/* the real variable address */
 };
 
-static inline struct got_entry emit_got_entry(u64 val)
+static inline struct got_entry emit_got_entry(unsigned long val)
 {
 	return (struct got_entry) {val};
 }
 
-static inline struct got_entry *get_got_entry(u64 val,
+static inline struct got_entry *get_got_entry(unsigned long val,
 					      const struct mod_section *sec)
 {
-	struct got_entry *got = (struct got_entry *)sec->shdr->sh_addr;
+	struct got_entry *got = (struct got_entry *)(sec->shdr->sh_addr);
 	int i;
 	for (i = 0; i < sec->num_entries; i++) {
 		if (got[i].symbol_addr == val)
@@ -61,7 +61,9 @@ struct plt_entry {
 #define REG_T0     0x5
 #define REG_T1     0x6
 
-static inline struct plt_entry emit_plt_entry(u64 val, u64 plt, u64 got_plt)
+static inline struct plt_entry emit_plt_entry(unsigned long val,
+					      unsigned long plt,
+					      unsigned long got_plt)
 {
 	/*
 	 * U-Type encoding:
@@ -75,7 +77,7 @@ static inline struct plt_entry emit_plt_entry(u64 val, u64 plt, u64 got_plt)
 	 * +------------+------------+--------+----------+----------+
 	 *
 	 */
-	u64 offset = got_plt - plt;
+	unsigned long offset = got_plt - plt;
 	u32 hi20 = (offset + 0x800) & 0xfffff000;
 	u32 lo12 = (offset - hi20);
 	return (struct plt_entry) {
@@ -85,7 +87,7 @@ static inline struct plt_entry emit_plt_entry(u64 val, u64 plt, u64 got_plt)
 	};
 }
 
-static inline int get_got_plt_idx(u64 val, const struct mod_section *sec)
+static inline int get_got_plt_idx(unsigned long val, const struct mod_section *sec)
 {
 	struct got_entry *got_plt = (struct got_entry *)sec->shdr->sh_addr;
 	int i;
@@ -96,9 +98,9 @@ static inline int get_got_plt_idx(u64 val, const struct mod_section *sec)
 	return -1;
 }
 
-static inline struct plt_entry *get_plt_entry(u64 val,
-				      const struct mod_section *sec_plt,
-				      const struct mod_section *sec_got_plt)
+static inline struct plt_entry *get_plt_entry(unsigned long val,
+					      const struct mod_section *sec_plt,
+					      const struct mod_section *sec_got_plt)
 {
 	struct plt_entry *plt = (struct plt_entry *)sec_plt->shdr->sh_addr;
 	int got_plt_idx = get_got_plt_idx(val, sec_got_plt);
diff --git a/arch/riscv/kernel/module-sections.c b/arch/riscv/kernel/module-sections.c
index bbbd26e..e8b991a 100644
--- a/arch/riscv/kernel/module-sections.c
+++ b/arch/riscv/kernel/module-sections.c
@@ -9,14 +9,14 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 
-u64 module_emit_got_entry(struct module *mod, u64 val)
+unsigned long module_emit_got_entry(struct module *mod, unsigned long val)
 {
 	struct mod_section *got_sec = &mod->arch.got;
 	int i = got_sec->num_entries;
 	struct got_entry *got = get_got_entry(val, got_sec);
 
 	if (got)
-		return (u64)got;
+		return (unsigned long)got;
 
 	/* There is no duplicate entry, create a new one */
 	got = (struct got_entry *)got_sec->shdr->sh_addr;
@@ -25,10 +25,10 @@ u64 module_emit_got_entry(struct module *mod, u64 val)
 	got_sec->num_entries++;
 	BUG_ON(got_sec->num_entries > got_sec->max_entries);
 
-	return (u64)&got[i];
+	return (unsigned long)&got[i];
 }
 
-u64 module_emit_plt_entry(struct module *mod, u64 val)
+unsigned long module_emit_plt_entry(struct module *mod, unsigned long val)
 {
 	struct mod_section *got_plt_sec = &mod->arch.got_plt;
 	struct got_entry *got_plt;
@@ -37,27 +37,29 @@ u64 module_emit_plt_entry(struct module *mod, u64 val)
 	int i = plt_sec->num_entries;
 
 	if (plt)
-		return (u64)plt;
+		return (unsigned long)plt;
 
 	/* There is no duplicate entry, create a new one */
 	got_plt = (struct got_entry *)got_plt_sec->shdr->sh_addr;
 	got_plt[i] = emit_got_entry(val);
 	plt = (struct plt_entry *)plt_sec->shdr->sh_addr;
-	plt[i] = emit_plt_entry(val, (u64)&plt[i], (u64)&got_plt[i]);
+	plt[i] = emit_plt_entry(val,
+                                (unsigned long)&plt[i],
+                                (unsigned long)&got_plt[i]);
 
 	plt_sec->num_entries++;
 	got_plt_sec->num_entries++;
 	BUG_ON(plt_sec->num_entries > plt_sec->max_entries);
 
-	return (u64)&plt[i];
+	return (unsigned long)&plt[i];
 }
 
-static int is_rela_equal(const Elf64_Rela *x, const Elf64_Rela *y)
+static int is_rela_equal(const Elf_Rela *x, const Elf_Rela *y)
 {
 	return x->r_info == y->r_info && x->r_addend == y->r_addend;
 }
 
-static bool duplicate_rela(const Elf64_Rela *rela, int idx)
+static bool duplicate_rela(const Elf_Rela *rela, int idx)
 {
 	int i;
 	for (i = 0; i < idx; i++) {
@@ -67,13 +69,13 @@ static bool duplicate_rela(const Elf64_Rela *rela, int idx)
 	return false;
 }
 
-static void count_max_entries(Elf64_Rela *relas, int num,
+static void count_max_entries(Elf_Rela *relas, int num,
 			      unsigned int *plts, unsigned int *gots)
 {
 	unsigned int type, i;
 
 	for (i = 0; i < num; i++) {
-		type = ELF64_R_TYPE(relas[i].r_info);
+		type = ELF_RISCV_R_TYPE(relas[i].r_info);
 		if (type == R_RISCV_CALL_PLT) {
 			if (!duplicate_rela(relas, i))
 				(*plts)++;
@@ -118,9 +120,9 @@ int module_frob_arch_sections(Elf_Ehdr *ehdr, Elf_Shdr *sechdrs,
 
 	/* Calculate the maxinum number of entries */
 	for (i = 0; i < ehdr->e_shnum; i++) {
-		Elf64_Rela *relas = (void *)ehdr + sechdrs[i].sh_offset;
-		int num_rela = sechdrs[i].sh_size / sizeof(Elf64_Rela);
-		Elf64_Shdr *dst_sec = sechdrs + sechdrs[i].sh_info;
+		Elf_Rela *relas = (void *)ehdr + sechdrs[i].sh_offset;
+		int num_rela = sechdrs[i].sh_size / sizeof(Elf_Rela);
+		Elf_Shdr *dst_sec = sechdrs + sechdrs[i].sh_info;
 
 		if (sechdrs[i].sh_type != SHT_RELA)
 			continue;
-- 
2.7.4


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linux-riscv@lists.infradead.org
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^ permalink raw reply	[flat|nested] 12+ messages in thread

* [PATCH 1/2] RISC-V: Request stat64 on RV32
  2018-11-12  4:07 ` [PATCH 1/2] RISC-V: Request stat64 " zongbox
  2018-11-12  4:07   ` Zong Li
@ 2018-11-12  6:19   ` david.abdurachmanov
  2018-11-12  6:19     ` David Abdurachmanov
                       ` (2 more replies)
  1 sibling, 3 replies; 12+ messages in thread
From: david.abdurachmanov @ 2018-11-12  6:19 UTC (permalink / raw)
  To: linux-riscv

On Mon, Nov 12, 2018 at 5:10 AM Zong Li <zongbox@gmail.com> wrote:
>
> The stat64 family that is used on 32-bit architectures to replace
> newstat.
>
> Since commit 67314ec7b0250290cc85eaa7a2f88a8ddb9e8547 ("RISC-V: Request
> newstat syscalls"), the RV32 build fail with undeclared 'sys_fstatat64'
>
> Signed-off-by: Zong Li <zong@andestech.com>
> ---
>  arch/riscv/include/asm/unistd.h | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/arch/riscv/include/asm/unistd.h b/arch/riscv/include/asm/unistd.h
> index eff7aa9..a4aade9 100644
> --- a/arch/riscv/include/asm/unistd.h
> +++ b/arch/riscv/include/asm/unistd.h
> @@ -18,5 +18,6 @@
>
>  #define __ARCH_WANT_NEW_STAT
>  #define __ARCH_WANT_SYS_CLONE
> +#define __ARCH_WANT_STAT64
>  #include <uapi/asm/unistd.h>
>  #include <uapi/asm/syscalls.h>
> --

See: http://lists.infradead.org/pipermail/linux-riscv/2018-November/002087.html

The plan is not to have old stat syscalls and support statx on
riscv32, which is y2038 safe.

The issue you see is a bug in include/uapi/asm-generic/unistd.h.
Marcin (CC) already sent a patch to Arnd (CC) IIRC. Basically without
__ARCH_WANT_NEW_STAT or __ARCH_WANT_STAT64 two macros are not defined:
__NR3264_fstatat and __NR3264_fstat. Which is later used (without any
guards):

763 #define __NR_newfstatat __NR3264_fstatat
764 #define __NR_fstat __NR3264_fstat

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH 1/2] RISC-V: Request stat64 on RV32
  2018-11-12  6:19   ` david.abdurachmanov
@ 2018-11-12  6:19     ` David Abdurachmanov
  2018-11-12  8:29     ` zongbox
  2018-11-12 17:01     ` palmer
  2 siblings, 0 replies; 12+ messages in thread
From: David Abdurachmanov @ 2018-11-12  6:19 UTC (permalink / raw)
  To: zongbox
  Cc: Marcin Juszkiewicz, aou, Arnd Bergmann, Palmer Dabbelt,
	linux-kernel, zong, linux-riscv

On Mon, Nov 12, 2018 at 5:10 AM Zong Li <zongbox@gmail.com> wrote:
>
> The stat64 family that is used on 32-bit architectures to replace
> newstat.
>
> Since commit 67314ec7b0250290cc85eaa7a2f88a8ddb9e8547 ("RISC-V: Request
> newstat syscalls"), the RV32 build fail with undeclared 'sys_fstatat64'
>
> Signed-off-by: Zong Li <zong@andestech.com>
> ---
>  arch/riscv/include/asm/unistd.h | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/arch/riscv/include/asm/unistd.h b/arch/riscv/include/asm/unistd.h
> index eff7aa9..a4aade9 100644
> --- a/arch/riscv/include/asm/unistd.h
> +++ b/arch/riscv/include/asm/unistd.h
> @@ -18,5 +18,6 @@
>
>  #define __ARCH_WANT_NEW_STAT
>  #define __ARCH_WANT_SYS_CLONE
> +#define __ARCH_WANT_STAT64
>  #include <uapi/asm/unistd.h>
>  #include <uapi/asm/syscalls.h>
> --

See: http://lists.infradead.org/pipermail/linux-riscv/2018-November/002087.html

The plan is not to have old stat syscalls and support statx on
riscv32, which is y2038 safe.

The issue you see is a bug in include/uapi/asm-generic/unistd.h.
Marcin (CC) already sent a patch to Arnd (CC) IIRC. Basically without
__ARCH_WANT_NEW_STAT or __ARCH_WANT_STAT64 two macros are not defined:
__NR3264_fstatat and __NR3264_fstat. Which is later used (without any
guards):

763 #define __NR_newfstatat __NR3264_fstatat
764 #define __NR_fstat __NR3264_fstat

_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv

^ permalink raw reply	[flat|nested] 12+ messages in thread

* [PATCH 1/2] RISC-V: Request stat64 on RV32
  2018-11-12  6:19   ` david.abdurachmanov
  2018-11-12  6:19     ` David Abdurachmanov
@ 2018-11-12  8:29     ` zongbox
  2018-11-12  8:29       ` Zong Li
  2018-11-12 17:01     ` palmer
  2 siblings, 1 reply; 12+ messages in thread
From: zongbox @ 2018-11-12  8:29 UTC (permalink / raw)
  To: linux-riscv

David Abdurachmanov <david.abdurachmanov@gmail.com> ? 2018?11?12? ?? ??2:19???
>
> On Mon, Nov 12, 2018 at 5:10 AM Zong Li <zongbox@gmail.com> wrote:
> >
> > The stat64 family that is used on 32-bit architectures to replace
> > newstat.
> >
> > Since commit 67314ec7b0250290cc85eaa7a2f88a8ddb9e8547 ("RISC-V: Request
> > newstat syscalls"), the RV32 build fail with undeclared 'sys_fstatat64'
> >
> > Signed-off-by: Zong Li <zong@andestech.com>
> > ---
> >  arch/riscv/include/asm/unistd.h | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/arch/riscv/include/asm/unistd.h b/arch/riscv/include/asm/unistd.h
> > index eff7aa9..a4aade9 100644
> > --- a/arch/riscv/include/asm/unistd.h
> > +++ b/arch/riscv/include/asm/unistd.h
> > @@ -18,5 +18,6 @@
> >
> >  #define __ARCH_WANT_NEW_STAT
> >  #define __ARCH_WANT_SYS_CLONE
> > +#define __ARCH_WANT_STAT64
> >  #include <uapi/asm/unistd.h>
> >  #include <uapi/asm/syscalls.h>
> > --
>
> See: http://lists.infradead.org/pipermail/linux-riscv/2018-November/002087.html
>
> The plan is not to have old stat syscalls and support statx on
> riscv32, which is y2038 safe.
>
> The issue you see is a bug in include/uapi/asm-generic/unistd.h.
> Marcin (CC) already sent a patch to Arnd (CC) IIRC. Basically without
> __ARCH_WANT_NEW_STAT or __ARCH_WANT_STAT64 two macros are not defined:
> __NR3264_fstatat and __NR3264_fstat. Which is later used (without any
> guards):
>
> 763 #define __NR_newfstatat __NR3264_fstatat
> 764 #define __NR_fstat __NR3264_fstat

Nice. Thank you.

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH 1/2] RISC-V: Request stat64 on RV32
  2018-11-12  8:29     ` zongbox
@ 2018-11-12  8:29       ` Zong Li
  0 siblings, 0 replies; 12+ messages in thread
From: Zong Li @ 2018-11-12  8:29 UTC (permalink / raw)
  To: david.abdurachmanov
  Cc: marcin.juszkiewicz, aou, Arnd Bergmann, Palmer Dabbelt,
	Linux Kernel Mailing List, Zong Li, linux-riscv

David Abdurachmanov <david.abdurachmanov@gmail.com> 於 2018年11月12日 週一 下午2:19寫道:
>
> On Mon, Nov 12, 2018 at 5:10 AM Zong Li <zongbox@gmail.com> wrote:
> >
> > The stat64 family that is used on 32-bit architectures to replace
> > newstat.
> >
> > Since commit 67314ec7b0250290cc85eaa7a2f88a8ddb9e8547 ("RISC-V: Request
> > newstat syscalls"), the RV32 build fail with undeclared 'sys_fstatat64'
> >
> > Signed-off-by: Zong Li <zong@andestech.com>
> > ---
> >  arch/riscv/include/asm/unistd.h | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/arch/riscv/include/asm/unistd.h b/arch/riscv/include/asm/unistd.h
> > index eff7aa9..a4aade9 100644
> > --- a/arch/riscv/include/asm/unistd.h
> > +++ b/arch/riscv/include/asm/unistd.h
> > @@ -18,5 +18,6 @@
> >
> >  #define __ARCH_WANT_NEW_STAT
> >  #define __ARCH_WANT_SYS_CLONE
> > +#define __ARCH_WANT_STAT64
> >  #include <uapi/asm/unistd.h>
> >  #include <uapi/asm/syscalls.h>
> > --
>
> See: http://lists.infradead.org/pipermail/linux-riscv/2018-November/002087.html
>
> The plan is not to have old stat syscalls and support statx on
> riscv32, which is y2038 safe.
>
> The issue you see is a bug in include/uapi/asm-generic/unistd.h.
> Marcin (CC) already sent a patch to Arnd (CC) IIRC. Basically without
> __ARCH_WANT_NEW_STAT or __ARCH_WANT_STAT64 two macros are not defined:
> __NR3264_fstatat and __NR3264_fstat. Which is later used (without any
> guards):
>
> 763 #define __NR_newfstatat __NR3264_fstatat
> 764 #define __NR_fstat __NR3264_fstat

Nice. Thank you.

_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv

^ permalink raw reply	[flat|nested] 12+ messages in thread

* [PATCH 1/2] RISC-V: Request stat64 on RV32
  2018-11-12  6:19   ` david.abdurachmanov
  2018-11-12  6:19     ` David Abdurachmanov
  2018-11-12  8:29     ` zongbox
@ 2018-11-12 17:01     ` palmer
  2018-11-12 17:01       ` Palmer Dabbelt
  2 siblings, 1 reply; 12+ messages in thread
From: palmer @ 2018-11-12 17:01 UTC (permalink / raw)
  To: linux-riscv

On Sun, 11 Nov 2018 22:19:02 PST (-0800), david.abdurachmanov at gmail.com wrote:
> On Mon, Nov 12, 2018 at 5:10 AM Zong Li <zongbox@gmail.com> wrote:
>>
>> The stat64 family that is used on 32-bit architectures to replace
>> newstat.
>>
>> Since commit 67314ec7b0250290cc85eaa7a2f88a8ddb9e8547 ("RISC-V: Request
>> newstat syscalls"), the RV32 build fail with undeclared 'sys_fstatat64'
>>
>> Signed-off-by: Zong Li <zong@andestech.com>
>> ---
>>  arch/riscv/include/asm/unistd.h | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/arch/riscv/include/asm/unistd.h b/arch/riscv/include/asm/unistd.h
>> index eff7aa9..a4aade9 100644
>> --- a/arch/riscv/include/asm/unistd.h
>> +++ b/arch/riscv/include/asm/unistd.h
>> @@ -18,5 +18,6 @@
>>
>>  #define __ARCH_WANT_NEW_STAT
>>  #define __ARCH_WANT_SYS_CLONE
>> +#define __ARCH_WANT_STAT64
>>  #include <uapi/asm/unistd.h>
>>  #include <uapi/asm/syscalls.h>
>> --
>
> See: http://lists.infradead.org/pipermail/linux-riscv/2018-November/002087.html
>
> The plan is not to have old stat syscalls and support statx on
> riscv32, which is y2038 safe.
>
> The issue you see is a bug in include/uapi/asm-generic/unistd.h.
> Marcin (CC) already sent a patch to Arnd (CC) IIRC. Basically without
> __ARCH_WANT_NEW_STAT or __ARCH_WANT_STAT64 two macros are not defined:
> __NR3264_fstatat and __NR3264_fstat. Which is later used (without any
> guards):
>
> 763 #define __NR_newfstatat __NR3264_fstatat
> 764 #define __NR_fstat __NR3264_fstat

I agree.  Thanks!

^ permalink raw reply	[flat|nested] 12+ messages in thread

* Re: [PATCH 1/2] RISC-V: Request stat64 on RV32
  2018-11-12 17:01     ` palmer
@ 2018-11-12 17:01       ` Palmer Dabbelt
  0 siblings, 0 replies; 12+ messages in thread
From: Palmer Dabbelt @ 2018-11-12 17:01 UTC (permalink / raw)
  To: david.abdurachmanov
  Cc: marcin.juszkiewicz, aou, Arnd Bergmann, zongbox, linux-kernel,
	zong, linux-riscv

On Sun, 11 Nov 2018 22:19:02 PST (-0800), david.abdurachmanov@gmail.com wrote:
> On Mon, Nov 12, 2018 at 5:10 AM Zong Li <zongbox@gmail.com> wrote:
>>
>> The stat64 family that is used on 32-bit architectures to replace
>> newstat.
>>
>> Since commit 67314ec7b0250290cc85eaa7a2f88a8ddb9e8547 ("RISC-V: Request
>> newstat syscalls"), the RV32 build fail with undeclared 'sys_fstatat64'
>>
>> Signed-off-by: Zong Li <zong@andestech.com>
>> ---
>>  arch/riscv/include/asm/unistd.h | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/arch/riscv/include/asm/unistd.h b/arch/riscv/include/asm/unistd.h
>> index eff7aa9..a4aade9 100644
>> --- a/arch/riscv/include/asm/unistd.h
>> +++ b/arch/riscv/include/asm/unistd.h
>> @@ -18,5 +18,6 @@
>>
>>  #define __ARCH_WANT_NEW_STAT
>>  #define __ARCH_WANT_SYS_CLONE
>> +#define __ARCH_WANT_STAT64
>>  #include <uapi/asm/unistd.h>
>>  #include <uapi/asm/syscalls.h>
>> --
>
> See: http://lists.infradead.org/pipermail/linux-riscv/2018-November/002087.html
>
> The plan is not to have old stat syscalls and support statx on
> riscv32, which is y2038 safe.
>
> The issue you see is a bug in include/uapi/asm-generic/unistd.h.
> Marcin (CC) already sent a patch to Arnd (CC) IIRC. Basically without
> __ARCH_WANT_NEW_STAT or __ARCH_WANT_STAT64 two macros are not defined:
> __NR3264_fstatat and __NR3264_fstat. Which is later used (without any
> guards):
>
> 763 #define __NR_newfstatat __NR3264_fstatat
> 764 #define __NR_fstat __NR3264_fstat

I agree.  Thanks!

_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv

^ permalink raw reply	[flat|nested] 12+ messages in thread

end of thread, back to index

Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-11-12  4:07 [PATCH 0/2] Fix some issue on RV32 zongbox
2018-11-12  4:07 ` Zong Li
2018-11-12  4:07 ` [PATCH 1/2] RISC-V: Request stat64 " zongbox
2018-11-12  4:07   ` Zong Li
2018-11-12  6:19   ` david.abdurachmanov
2018-11-12  6:19     ` David Abdurachmanov
2018-11-12  8:29     ` zongbox
2018-11-12  8:29       ` Zong Li
2018-11-12 17:01     ` palmer
2018-11-12 17:01       ` Palmer Dabbelt
2018-11-12  4:07 ` [PATCH 2/2] RISC-V: Support MODULE_SECTIONS mechanism " zongbox
2018-11-12  4:07   ` Zong Li

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