diff options
Diffstat (limited to 'tools/perf/util')
| -rw-r--r-- | tools/perf/util/symbol.c | 6 | ||||
| -rw-r--r-- | tools/perf/util/symbol.h | 10 |
2 files changed, 13 insertions, 3 deletions
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 93c49f4685f..ac94d7b94f6 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -549,7 +549,7 @@ static int dso__synthesize_plt_symbols(struct dso *self) if (fd < 0) goto out; - elf = elf_begin(fd, ELF_C_READ_MMAP, NULL); + elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL); if (elf == NULL) goto out_close; @@ -673,7 +673,7 @@ static int dso__load_sym(struct dso *self, struct map *map, const char *name, Elf *elf; int nr = 0; - elf = elf_begin(fd, ELF_C_READ_MMAP, NULL); + elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL); if (elf == NULL) { pr_err("%s: cannot read %s ELF file.\n", __func__, name); goto out_close; @@ -842,7 +842,7 @@ static char *dso__read_build_id(struct dso *self) if (fd < 0) goto out; - elf = elf_begin(fd, ELF_C_READ_MMAP, NULL); + elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL); if (elf == NULL) { pr_err("%s: cannot read %s ELF file.\n", __func__, self->long_name); diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index a471a384073..088433062dd 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -27,6 +27,16 @@ static inline char *bfd_demangle(void __used *v, const char __used *c, #endif #endif +/* + * libelf 0.8.x and earlier do not support ELF_C_READ_MMAP; + * for newer versions we can use mmap to reduce memory usage: + */ +#ifdef LIBELF_NO_MMAP +# define PERF_ELF_C_READ_MMAP ELF_C_READ +#else +# define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP +#endif + #ifndef DMGL_PARAMS #define DMGL_PARAMS (1 << 0) /* Include function args */ #define DMGL_ANSI (1 << 1) /* Include const, volatile, etc */ |