diff options
Diffstat (limited to 'elf')
| -rw-r--r-- | elf/dl-open.c | 5 | ||||
| -rw-r--r-- | elf/dl-profile.c | 13 | ||||
| -rw-r--r-- | elf/dl-support.c | 6 | ||||
| -rw-r--r-- | elf/rtld.c | 2 |
4 files changed, 16 insertions, 10 deletions
diff --git a/elf/dl-open.c b/elf/dl-open.c index ce9a959ea7..8af6eefb46 100644 --- a/elf/dl-open.c +++ b/elf/dl-open.c @@ -305,7 +305,7 @@ dl_open_worker (void *a) return; /* It was already open. */ - if (new->l_searchlist.r_list != NULL) + if (__builtin_expect (new->l_searchlist.r_list != NULL, 0)) { /* Let the user know about the opencount. */ if (__builtin_expect (GLRO(dl_debug_mask) & DL_DEBUG_FILES, 0)) @@ -362,8 +362,7 @@ dl_open_worker (void *a) if (old_profile_map == NULL && GL(dl_profile_map) != NULL) /* We must prepare the profiling. */ - GLRO(dl_start_profile) (GL(dl_profile_map), - GLRO(dl_profile_output)); + GLRO(dl_start_profile) (); } else #endif diff --git a/elf/dl-profile.c b/elf/dl-profile.c index 3b99fad8ea..8afa8350c2 100644 --- a/elf/dl-profile.c +++ b/elf/dl-profile.c @@ -173,7 +173,7 @@ static unsigned int log_hashfraction; file is found (or created) in OUTPUT_DIR. */ void internal_function -_dl_start_profile (struct link_map *map, const char *output_dir) +_dl_start_profile (void) { char *filename; int fd; @@ -195,7 +195,8 @@ _dl_start_profile (struct link_map *map, const char *output_dir) #define SCALE_1_TO_1 0x10000L /* Compute the size of the sections which contain program code. */ - for (ph = map->l_phdr; ph < &map->l_phdr[map->l_phnum]; ++ph) + for (ph = GL(dl_profile_map)->l_phdr; + ph < &GL(dl_profile_map)->l_phdr[GL(dl_profile_map)->l_phnum]; ++ph) if (ph->p_type == PT_LOAD && (ph->p_flags & PF_X)) { ElfW(Addr) start = (ph->p_vaddr & ~(GLRO(dl_pagesize) - 1)); @@ -211,9 +212,9 @@ _dl_start_profile (struct link_map *map, const char *output_dir) /* Now we can compute the size of the profiling data. This is done with the same formulars as in `monstartup' (see gmon.c). */ running = 0; - lowpc = ROUNDDOWN (mapstart + map->l_addr, + lowpc = ROUNDDOWN (mapstart + GL(dl_profile_map)->l_addr, HISTFRACTION * sizeof (HISTCOUNTER)); - highpc = ROUNDUP (mapend + map->l_addr, + highpc = ROUNDUP (mapend + GL(dl_profile_map)->l_addr, HISTFRACTION * sizeof (HISTCOUNTER)); textsize = highpc - lowpc; kcountsize = textsize / HISTFRACTION; @@ -273,9 +274,9 @@ _dl_start_profile (struct link_map *map, const char *output_dir) /* First determine the output name. We write in the directory OUTPUT_DIR and the name is composed from the shared objects soname (or the file name) and the ending ".profile". */ - filename = (char *) alloca (strlen (output_dir) + 1 + filename = (char *) alloca (strlen (GLRO(dl_profile_output)) + 1 + strlen (GLRO(dl_profile)) + sizeof ".profile"); - cp = __stpcpy (filename, output_dir); + cp = __stpcpy (filename, GLRO(dl_profile_output)); *cp++ = '/'; __stpcpy (__stpcpy (cp, GLRO(dl_profile)), ".profile"); diff --git a/elf/dl-support.c b/elf/dl-support.c index 44335e8a8e..0b2d0243de 100644 --- a/elf/dl-support.c +++ b/elf/dl-support.c @@ -49,6 +49,7 @@ int _dl_verbose; /* We never do profiling. */ const char *_dl_profile; +const char *_dl_profile_output; /* Names of shared object for which the RUNPATHs and RPATHs should be ignored. */ @@ -247,6 +248,11 @@ _dl_non_dynamic_init (void) _dl_dynamic_weak = *(getenv ("LD_DYNAMIC_WEAK") ?: "") == '\0'; + _dl_profile_output = getenv ("LD_PROFILE_OUTPUT"); + if (_dl_profile_output == NULL || _dl_profile_output[0] == '\0') + _dl_profile_output + = &"/var/tmp\0/var/profile"[__libc_enable_secure ? 9 : 0]; + if (__libc_enable_secure) { static const char *unsecure_envvars[] = diff --git a/elf/rtld.c b/elf/rtld.c index cf82d5ad3b..f9e8b8443b 100644 --- a/elf/rtld.c +++ b/elf/rtld.c @@ -1821,7 +1821,7 @@ cannot allocate TLS data structures for initial thread"); needs to have _dl_profile_map set up by the relocator. */ if (__builtin_expect (GL(dl_profile_map) != NULL, 0)) /* We must prepare the profiling. */ - _dl_start_profile (GL(dl_profile_map), GLRO(dl_profile_output)); + _dl_start_profile (); if (GL(dl_rtld_map).l_opencount > 1) { |