forked from rpms/glibc
114 lines
3.7 KiB
Diff
114 lines
3.7 KiB
Diff
commit 27316f4a23efdc90bdfe4569a6c4b7e27941606e
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Author: Florian Weimer <fweimer@redhat.com>
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Date: Thu Oct 8 10:57:10 2020 +0200
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elf: Record whether paths come from LD_LIBRARY_PATH or --library-path
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This allows more precise LD_DEBUG diagnostics.
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Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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diff --git a/elf/dl-load.c b/elf/dl-load.c
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index 2b4dd9a0f3e27b70..1403a2e9c04e9a16 100644
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--- a/elf/dl-load.c
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+++ b/elf/dl-load.c
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@@ -682,7 +682,7 @@ cache_rpath (struct link_map *l,
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void
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-_dl_init_paths (const char *llp)
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+_dl_init_paths (const char *llp, const char *source)
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{
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size_t idx;
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const char *strp;
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@@ -820,7 +820,7 @@ _dl_init_paths (const char *llp)
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}
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(void) fillin_rpath (llp_tmp, env_path_list.dirs, ":;",
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- "LD_LIBRARY_PATH", NULL, l);
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+ source, NULL, l);
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if (env_path_list.dirs[0] == NULL)
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{
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diff --git a/elf/dl-main.h b/elf/dl-main.h
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index b01f433f9c8d9e1a..79c9c40056504f80 100644
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--- a/elf/dl-main.h
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+++ b/elf/dl-main.h
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@@ -74,6 +74,9 @@ struct dl_main_state
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/* The library search path. */
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const char *library_path;
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+ /* Where library_path comes from. LD_LIBRARY_PATH or --library-path. */
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+ const char *library_path_source;
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+
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/* The list preloaded objects from LD_PRELOAD. */
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const char *preloadlist;
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@@ -94,7 +97,7 @@ struct dl_main_state
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static inline void
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call_init_paths (const struct dl_main_state *state)
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{
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- _dl_init_paths (state->library_path);
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+ _dl_init_paths (state->library_path, state->library_path_source);
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}
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/* Print ld.so usage information and exit. */
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diff --git a/elf/dl-support.c b/elf/dl-support.c
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index ef5455b91c17ca30..fb9672367f8d6abd 100644
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--- a/elf/dl-support.c
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+++ b/elf/dl-support.c
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@@ -315,7 +315,7 @@ _dl_non_dynamic_init (void)
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/* Initialize the data structures for the search paths for shared
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objects. */
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- _dl_init_paths (getenv ("LD_LIBRARY_PATH"));
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+ _dl_init_paths (getenv ("LD_LIBRARY_PATH"), "LD_LIBRARY_PATH");
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/* Remember the last search directory added at startup. */
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_dl_init_all_dirs = GL(dl_all_dirs);
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diff --git a/elf/rtld.c b/elf/rtld.c
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index a12a56b550bbc837..8e91cee41b62b894 100644
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--- a/elf/rtld.c
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+++ b/elf/rtld.c
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@@ -284,6 +284,7 @@ dl_main_state_init (struct dl_main_state *state)
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{
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audit_list_init (&state->audit_list);
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state->library_path = NULL;
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+ state->library_path_source = NULL;
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state->preloadlist = NULL;
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state->preloadarg = NULL;
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state->mode = rtld_mode_normal;
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@@ -1197,6 +1198,7 @@ dl_main (const ElfW(Phdr) *phdr,
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&& _dl_argc > 2)
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{
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state.library_path = _dl_argv[2];
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+ state.library_path_source = "--library-path";
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_dl_skip_args += 2;
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_dl_argc -= 2;
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@@ -2640,6 +2642,7 @@ process_envvars (struct dl_main_state *state)
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&& memcmp (envline, "LIBRARY_PATH", 12) == 0)
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{
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state->library_path = &envline[13];
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+ state->library_path_source = "LD_LIBRARY_PATH";
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break;
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}
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diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h
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index 4aa28b0229e0b339..aa006afafaf46dee 100644
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--- a/sysdeps/generic/ldsodefs.h
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+++ b/sysdeps/generic/ldsodefs.h
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@@ -1044,8 +1044,10 @@ rtld_hidden_proto (_dl_debug_state)
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extern struct r_debug *_dl_debug_initialize (ElfW(Addr) ldbase, Lmid_t ns)
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attribute_hidden;
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-/* Initialize the basic data structure for the search paths. */
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-extern void _dl_init_paths (const char *library_path) attribute_hidden;
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+/* Initialize the basic data structure for the search paths. SOURCE
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+ is either "LD_LIBRARY_PATH" or "--library-path". */
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+extern void _dl_init_paths (const char *library_path, const char *source)
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+ attribute_hidden;
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/* Gather the information needed to install the profiling tables and start
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the timers. */
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