diff options
| author | Jisheng Zhang <jszhang@kernel.org> | 2023-01-29 01:28:50 +0800 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2023-01-31 23:29:39 -0800 |
| commit | e0c267e03b0c77c9ac79ac08eada41ba8eb1b95f (patch) | |
| tree | 71262cfd5cf6aa2409ec0d3e15968fc31e33cadd /arch/riscv/include | |
| parent | 702e64550b12cf36089672af8f110660da7f847e (diff) | |
riscv: module: move find_section to module.h
Move find_section() to module.h so that the implementation can be shared
by the alternatives code. This will allow us to use alternatives in
the vdso.
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Link: https://lore.kernel.org/r/20230128172856.3814-8-jszhang@kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/include')
| -rw-r--r-- | arch/riscv/include/asm/module.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/module.h b/arch/riscv/include/asm/module.h index 76aa96a9fc08..0f3baaa6a9a8 100644 --- a/arch/riscv/include/asm/module.h +++ b/arch/riscv/include/asm/module.h @@ -5,6 +5,7 @@ #define _ASM_RISCV_MODULE_H #include <asm-generic/module.h> +#include <linux/elf.h> struct module; unsigned long module_emit_got_entry(struct module *mod, unsigned long val); @@ -111,4 +112,19 @@ static inline struct plt_entry *get_plt_entry(unsigned long val, #endif /* CONFIG_MODULE_SECTIONS */ +static inline const Elf_Shdr *find_section(const Elf_Ehdr *hdr, + const Elf_Shdr *sechdrs, + const char *name) +{ + const Elf_Shdr *s, *se; + const char *secstrs = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset; + + for (s = sechdrs, se = sechdrs + hdr->e_shnum; s < se; s++) { + if (strcmp(name, secstrs + s->sh_name) == 0) + return s; + } + + return NULL; +} + #endif /* _ASM_RISCV_MODULE_H */ |