diff options
| -rw-r--r-- | tools/perf/arch/powerpc/util/sym-handling.c | 20 | ||||
| -rw-r--r-- | tools/perf/util/symbol.c | 21 | ||||
| -rw-r--r-- | tools/perf/util/symbol.h | 5 |
3 files changed, 37 insertions, 9 deletions
diff --git a/tools/perf/arch/powerpc/util/sym-handling.c b/tools/perf/arch/powerpc/util/sym-handling.c index c9de0012195f..5522a4000c22 100644 --- a/tools/perf/arch/powerpc/util/sym-handling.c +++ b/tools/perf/arch/powerpc/util/sym-handling.c @@ -17,3 +17,23 @@ bool elf__needs_adjust_symbols(GElf_Ehdr ehdr) ehdr.e_type == ET_DYN; } #endif + +#if !defined(_CALL_ELF) || _CALL_ELF != 2 +int arch__choose_best_symbol(struct symbol *syma, + struct symbol *symb __maybe_unused) +{ + char *sym = syma->name; + + /* Skip over any initial dot */ + if (*sym == '.') + sym++; + + /* Avoid "SyS" kernel syscall aliases */ + if (strlen(sym) >= 3 && !strncmp(sym, "SyS", 3)) + return SYMBOL_B; + if (strlen(sym) >= 10 && !strncmp(sym, "compat_SyS", 10)) + return SYMBOL_B; + + return SYMBOL_A; +} +#endif diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 201f6c4ca738..f80575728c64 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -85,8 +85,17 @@ static int prefix_underscores_count(const char *str) return tail - str; } -#define SYMBOL_A 0 -#define SYMBOL_B 1 +int __weak arch__choose_best_symbol(struct symbol *syma, + struct symbol *symb __maybe_unused) +{ + /* Avoid "SyS" kernel syscall aliases */ + if (strlen(syma->name) >= 3 && !strncmp(syma->name, "SyS", 3)) + return SYMBOL_B; + if (strlen(syma->name) >= 10 && !strncmp(syma->name, "compat_SyS", 10)) + return SYMBOL_B; + + return SYMBOL_A; +} static int choose_best_symbol(struct symbol *syma, struct symbol *symb) { @@ -134,13 +143,7 @@ static int choose_best_symbol(struct symbol *syma, struct symbol *symb) else if (na < nb) return SYMBOL_B; - /* Avoid "SyS" kernel syscall aliases */ - if (na >= 3 && !strncmp(syma->name, "SyS", 3)) - return SYMBOL_B; - if (na >= 10 && !strncmp(syma->name, "compat_SyS", 10)) - return SYMBOL_B; - - return SYMBOL_A; + return arch__choose_best_symbol(syma, symb); } void symbols__fixup_duplicate(struct rb_root *symbols) diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 8cb0af48ec93..bd50ba0dde63 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -307,4 +307,9 @@ int setup_intlist(struct intlist **list, const char *list_str, bool elf__needs_adjust_symbols(GElf_Ehdr ehdr); #endif +#define SYMBOL_A 0 +#define SYMBOL_B 1 + +int arch__choose_best_symbol(struct symbol *syma, struct symbol *symb); + #endif /* __PERF_SYMBOL */ |