diff options
| -rw-r--r-- | ChangeLog | 9 | ||||
| -rw-r--r-- | elf/dl-reloc.c | 12 | ||||
| -rw-r--r-- | elf/sprof.c | 16 |
3 files changed, 26 insertions, 11 deletions
@@ -1,3 +1,12 @@ +2000-06-19 Ulrich Drepper <drepper@redhat.com> + + * elf/sprof.c (print_version): Update year. + + * elf/sprof.c (load_shobj): Don't always add load address to dynamic + table entry values. Use D_PTR. + * elf/dl-reloc.c (_dl_relocate_object): Don't start profiling weird + binaries without PLT. Patches by James Mathiesen <james@curl.com>. + 2000-06-20 Jes Sorensen <jes@linuxcare.com> * sysdeps/unix/sysv/linux/ia64/Makefile: New file. diff --git a/elf/dl-reloc.c b/elf/dl-reloc.c index 280623153a..b389c42b1e 100644 --- a/elf/dl-reloc.c +++ b/elf/dl-reloc.c @@ -94,13 +94,21 @@ cannot make segment writable for relocation")); if (__builtin_expect (_dl_profile != NULL, 0)) { /* Allocate the array which will contain the already found - relocations. */ + relocations. If the shared object lacks a PLT (for example + if it inly contains lead function) the l_info[DT_PLTRELSZ] + will be NULL. */ + if (l->l_info[DT_PLTRELSZ] == NULL) + _dl_sysdep_fatal (_dl_argv[0] ?: "<program name unknown>", + ": profiler found no PLTREL in object ", + l->l_name, "\n", NULL); + l->l_reloc_result = (ElfW(Addr) *) calloc (sizeof (ElfW(Addr)), l->l_info[DT_PLTRELSZ]->d_un.d_val); if (l->l_reloc_result == NULL) _dl_sysdep_fatal (_dl_argv[0] ?: "<program name unknown>", - "cannot allocate memory for profiling", NULL); + ": profiler outof memory shadowing PLTREL of ", + l->l_name, "\n", NULL); } } diff --git a/elf/sprof.c b/elf/sprof.c index bf4ce0efe6..a4de9f4fe5 100644 --- a/elf/sprof.c +++ b/elf/sprof.c @@ -357,7 +357,7 @@ Copyright (C) %s Free Software Foundation, Inc.\n\ This is free software; see the source for copying conditions. There is NO\n\ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\ "), - "1999"); + "2000"); fprintf (stream, gettext ("Written by %s.\n"), "Ulrich Drepper"); } @@ -504,8 +504,7 @@ load_shobj (const char *name) if (map->l_info[DT_STRTAB] == NULL) result->dynstrtab = NULL; else - result->dynstrtab = (const char *) (map->l_addr - + map->l_info[DT_STRTAB]->d_un.d_ptr); + result->dynstrtab = (const char *) D_PTR (map, l_info[DT_STRTAB]); if (do_test) printf ("string table: %p\n", result->dynstrtab); @@ -514,7 +513,7 @@ load_shobj (const char *name) result->soname = NULL; else result->soname = result->dynstrtab + map->l_info[DT_SONAME]->d_un.d_val; - if (do_test) + if (do_test && result->soname != NULL) printf ("soname: %s\n", result->soname); /* Now we have to load the symbol table. @@ -903,7 +902,6 @@ printsym (const void *node, VISIT value, int level) static void read_symbols (struct shobj *shobj) { - void *load_addr = (void *) shobj->map->l_addr; int n = 0; /* Initialize the obstacks. */ @@ -960,10 +958,10 @@ read_symbols (struct shobj *shobj) { /* Blarg, the binary is stripped. We have to rely on the information contained in the dynamic section of the object. */ - const ElfW(Sym) *symtab = (load_addr - + shobj->map->l_info[DT_SYMTAB]->d_un.d_ptr); - const char *strtab = (load_addr - + shobj->map->l_info[DT_STRTAB]->d_un.d_ptr); + const ElfW(Sym) *symtab = (ElfW(Sym) *) D_PTR (shobj->map, + l_info[DT_SYMTAB]); + const char *strtab = (const char *) D_PTR (shobj->map, + l_info[DT_STRTAB]); /* We assume that the string table follows the symbol table, because there is no way in ELF to know the size of the |