diff options
Diffstat (limited to 'elf/rtld.c')
| -rw-r--r-- | elf/rtld.c | 45 |
1 files changed, 37 insertions, 8 deletions
diff --git a/elf/rtld.c b/elf/rtld.c index 304d07a5ba..c466fa28c9 100644 --- a/elf/rtld.c +++ b/elf/rtld.c @@ -261,7 +261,11 @@ match_version (const char *string, struct link_map *map) return 0; } -unsigned int _dl_skip_args; /* Nonzero if we were run directly. */ +static unsigned int _dl_skip_args; /* Nonzero if we were run directly. */ +static const char *library_path; /* The library search path. */ +static const char *preloadlist; /* The list preloaded objects. */ +static int version_info; /* Nonzero if information about + versions has to be printed. */ static void dl_main (const ElfW(Phdr) *phdr, @@ -274,7 +278,6 @@ dl_main (const ElfW(Phdr) *phdr, enum mode mode; struct link_map **preloads; unsigned int npreloads; - const char *preloadlist; size_t file_size; char *file; int has_interp = 0; @@ -303,9 +306,6 @@ dl_main (const ElfW(Phdr) *phdr, ourselves). This is an easy way to test a new ld.so before installing it. */ - /* Overwrites LD_LIBRARY_PATH if given. */ - const char *library_path = NULL; - /* Note the place where the dynamic linker actually came from. */ _dl_rtld_map.l_name = _dl_argv[0]; @@ -472,7 +472,7 @@ of this helper program; chances are you did not intend to run this program.\n", if (*user_entry != (ElfW(Addr)) &ENTRY_POINT) /* Initialize the data structures for the search paths for shared objects. */ - _dl_init_paths (NULL); + _dl_init_paths (library_path); /* Put the link_map for ourselves on the chain so it can be found by name. Note that at this point the global chain of link maps contains @@ -491,7 +491,6 @@ of this helper program; chances are you did not intend to run this program.\n", preloads = NULL; npreloads = 0; - preloadlist = getenv ("LD_PRELOAD"); if (preloadlist) { /* The LD_PRELOAD environment variable gives list of libraries @@ -732,7 +731,7 @@ of this helper program; chances are you did not intend to run this program.\n", } #define VERNEEDTAG (DT_NUM + DT_PROCNUM + DT_VERSIONTAGIDX (DT_VERNEED)) - if (*(getenv ("LD_VERBOSE") ?: "") != '\0') + if (version_info) { /* Print more information. This means here, print information about the versions needed. */ @@ -1006,6 +1005,26 @@ process_envvars (enum mode *modep, int *lazyp) if (result < 0) continue; + /* The library search path. */ + result = strncmp (&envline[3], "LIBRARY_PATH=", 13); + if (result == 0) + { + library_path = &envline[16]; + continue; + } + if (result < 0) + continue; + + /* List of objects to be preloaded. */ + result = strncmp (&envline[3], "PRELOAD=", 8); + if (result == 0) + { + preloadlist = &envline[11]; + continue; + } + if (result < 0) + continue; + /* Which shared object shall be profiled. */ result = strncmp (&envline[3], "PROFILE=", 8); if (result == 0) @@ -1051,6 +1070,16 @@ process_envvars (enum mode *modep, int *lazyp) if (result < 0) continue; + /* Print information about versions. */ + result = strncmp (&envline[3], "VERBOSE=", 8); + if (result == 0) + { + version_info = envline[11] != '\0'; + continue; + } + if (result < 0) + continue; + /* Warning level, verbose or not. */ result = strncmp (&envline[3], "WARN=", 5); if (result == 0) |