diff options
| author | Sathvika Vasireddy <sv@linux.ibm.com> | 2022-11-14 23:27:52 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2022-11-18 19:00:16 +1100 |
| commit | 4ca993d498987332ceeedee5380101b84accaf35 (patch) | |
| tree | a87dadaa69d50ee08b90553b8656d476ffb01f1c /tools/objtool | |
| parent | c1449735211dd8c4c2d54fa0ece6890ecbd74e24 (diff) | |
objtool: Add arch specific function arch_ftrace_match()
Add architecture specific function to look for relocation records
pointing to architecture specific symbols.
Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Tested-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Reviewed-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Sathvika Vasireddy <sv@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20221114175754.1131267-15-sv@linux.ibm.com
Diffstat (limited to 'tools/objtool')
| -rw-r--r-- | tools/objtool/arch/x86/decode.c | 5 | ||||
| -rw-r--r-- | tools/objtool/check.c | 2 | ||||
| -rw-r--r-- | tools/objtool/include/objtool/arch.h | 2 |
3 files changed, 8 insertions, 1 deletions
diff --git a/tools/objtool/arch/x86/decode.c b/tools/objtool/arch/x86/decode.c index 1c253b4b7ce0..af7ad09c926c 100644 --- a/tools/objtool/arch/x86/decode.c +++ b/tools/objtool/arch/x86/decode.c @@ -23,6 +23,11 @@ #include <objtool/builtin.h> #include <arch/elf.h> +int arch_ftrace_match(char *name) +{ + return !strcmp(name, "__fentry__"); +} + static int is_x86_64(const struct elf *elf) { switch (elf->ehdr.e_machine) { diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 2d7153b5d5d1..7580c66ca5c8 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -2316,7 +2316,7 @@ static int classify_symbols(struct objtool_file *file) if (arch_is_rethunk(func)) func->return_thunk = true; - if (!strcmp(func->name, "__fentry__")) + if (arch_ftrace_match(func->name)) func->fentry = true; if (is_profiling_func(func->name)) diff --git a/tools/objtool/include/objtool/arch.h b/tools/objtool/include/objtool/arch.h index beb2f3aa94ff..5149330f400f 100644 --- a/tools/objtool/include/objtool/arch.h +++ b/tools/objtool/include/objtool/arch.h @@ -69,6 +69,8 @@ struct stack_op { struct instruction; +int arch_ftrace_match(char *name); + void arch_initial_func_cfi_state(struct cfi_init_state *state); int arch_decode_instruction(struct objtool_file *file, const struct section *sec, |