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authorUlrich Drepper <drepper@redhat.com>2004-10-18 23:17:46 +0000
committerUlrich Drepper <drepper@redhat.com>2004-10-18 23:17:46 +0000
commit5f21997b9d6a49ddbed85b044e2be7b182c095a2 (patch)
tree3b63a3a63ebeb466456f52480bd06df198f1dcf5 /dlfcn/modstatic2.c
parent790b6c7a7f65dec508a2e71e6d922ec166640afc (diff)
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2004-10-18 Jakub Jelinek <jakub@redhat.com> * elf/dl-libc.c (__libc_dlsym_private, __libc_register_dl_open_hook): New functions. (__libc_dlopen_mode): Call __libc_register_dl_open_hook and __libc_register_dlfcn_hook. * dlfcn/Makefile (routines, elide-routines.os): Set. Add rules to build and test tststatic2. * dlfcn/tststatic2.c: New test. * dlfcn/modstatic2.c: New test module. * dlfcn/dladdr.c: Call _dlfcn_hook from libdl.so if not NULL. Define __ prefixed routine in libc.a and in libdl.a just call it. * dlfcn/dladdr1.c: Likewise. * dlfcn/dlclose.c: Likewise. * dlfcn/dlerror.c: Likewise. * dlfcn/dlinfo.c: Likewise. * dlfcn/dlmopen.c: Likewise. * dlfcn/dlopen.c: Likewise. * dlfcn/dlopenold.c: Likewise. * dlfcn/dlsym.c: Likewise. * dlfcn/dlvsym.c: Likewise. * dlfcn/sdladdr.c: New file. * dlfcn/sdladdr1.c: New file. * dlfcn/sdlclose.c: New file. * dlfcn/sdlerror.c: New file. * dlfcn/sdlinfo.c: New file. * dlfcn/sdlopen.c: New file. * dlfcn/sdlsym.c: New file. * dlfcn/sdlvsym.c: New file. * dlfcn/Versions (libdl): Export _dlfcn_hook@GLIBC_PRIVATE. * include/dlfcn.h (DL_CALLER_DECL, DL_CALLER RETURN_ADDRESS): Define. (struct dlfcn_hook): New type. (_dlfcn_hook): New extern decl. (__dlopen, __dlclose, __dlsym, __dlerror, __dladdr, __dladdr1, __dlinfo, __dlmopen, __libc_dlsym_private, __libc_register_dl_open_hook, __libc_register_dlfcn_hook): New prototypes. (__dlvsym): Use DL_CALLER_DECL. * include/libc-symbols.h: Define libdl_hidden_proto and friends. * malloc/arena.c (_dl_open_hook): Extern decl. (ptmalloc_init): Don't call _dl_addr when dlopened from statically linked programs but don't use brk for them either.
Diffstat (limited to 'dlfcn/modstatic2.c')
-rw-r--r--dlfcn/modstatic2.c228
1 files changed, 228 insertions, 0 deletions
diff --git a/dlfcn/modstatic2.c b/dlfcn/modstatic2.c
new file mode 100644
index 0000000..0703de8
--- /dev/null
+++ b/dlfcn/modstatic2.c
@@ -0,0 +1,228 @@
+#include <dlfcn.h>
+#include <link.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <gnu/lib-names.h>
+
+int test (FILE *out, int a);
+
+int
+test (FILE *out, int a)
+{
+ fputs ("in modstatic2.c (test)\n", out);
+
+ void *handle = dlopen ("modstatic2-nonexistent.so", RTLD_LAZY);
+ if (handle == NULL)
+ fprintf (out, "nonexistent: %s\n", dlerror ());
+ else
+ exit (1);
+
+ handle = dlopen ("modstatic2.so", RTLD_LAZY);
+ if (handle == NULL)
+ {
+ fprintf (out, "%s\n", dlerror ());
+ exit (1);
+ }
+
+ int (*test2) (FILE *, int);
+ test2 = dlsym (handle, "test");
+ if (test2 == NULL)
+ {
+ fprintf (out, "%s\n", dlerror ());
+ exit (1);
+ }
+ if (test2 != test)
+ {
+ fprintf (out, "test %p != test2 %p\n", test, test2);
+ exit (1);
+ }
+
+ Dl_info info;
+ int res = dladdr (test2, &info);
+ if (res == 0)
+ {
+ fputs ("dladdr returned 0\n", out);
+ exit (1);
+ }
+ else
+ {
+ if (strstr (info.dli_fname, "modstatic2.so") == NULL
+ || strcmp (info.dli_sname, "test") != 0)
+ {
+ fprintf (out, "fname %s sname %s\n", info.dli_fname, info.dli_sname);
+ exit (1);
+ }
+ if (info.dli_saddr != (void *) test2)
+ {
+ fprintf (out, "saddr %p != test %p\n", info.dli_saddr, test2);
+ exit (1);
+ }
+ }
+
+ ElfW(Sym) *sym;
+ void *symp;
+ res = dladdr1 (test2, &info, &symp, RTLD_DL_SYMENT);
+ if (res == 0)
+ {
+ fputs ("dladdr1 returned 0\n", out);
+ exit (1);
+ }
+ else
+ {
+ if (strstr (info.dli_fname, "modstatic2.so") == NULL
+ || strcmp (info.dli_sname, "test") != 0)
+ {
+ fprintf (out, "fname %s sname %s\n", info.dli_fname, info.dli_sname);
+ exit (1);
+ }
+ if (info.dli_saddr != (void *) test2)
+ {
+ fprintf (out, "saddr %p != test %p\n", info.dli_saddr, test2);
+ exit (1);
+ }
+ sym = symp;
+ if (sym == NULL)
+ {
+ fputs ("sym == NULL\n", out);
+ exit (1);
+ }
+ if (ELF32_ST_BIND (sym->st_info) != STB_GLOBAL
+ || ELF32_ST_VISIBILITY (sym->st_other) != STV_DEFAULT)
+ {
+ fprintf (out, "bind %d visibility %d\n",
+ (int) ELF32_ST_BIND (sym->st_info),
+ (int) ELF32_ST_VISIBILITY (sym->st_other));
+ exit (1);
+ }
+ }
+
+ Lmid_t lmid;
+ res = dlinfo (handle, RTLD_DI_LMID, &lmid);
+ if (res != 0)
+ {
+ fprintf (out, "dlinfo returned %d %s\n", res, dlerror ());
+ exit (1);
+ }
+ else if (lmid != LM_ID_BASE)
+ {
+ fprintf (out, "lmid %d != %d\n", (int) lmid, (int) LM_ID_BASE);
+ exit (1);
+ }
+
+ void *handle2 = dlopen (LIBDL_SO, RTLD_LAZY);
+ if (handle2 == NULL)
+ {
+ fprintf (out, "libdl.so: %s\n", dlerror ());
+ exit (1);
+ }
+
+#ifdef DO_VERSIONING
+ if (dlvsym (handle2, "_dlfcn_hook", "GLIBC_PRIVATE") == NULL)
+ {
+ fprintf (out, "dlvsym: %s\n", dlerror ());
+ exit (1);
+ }
+#endif
+
+ void *(*dlsymfn) (void *, const char *);
+ dlsymfn = dlsym (handle2, "dlsym");
+ if (dlsymfn == NULL)
+ {
+ fprintf (out, "dlsym \"dlsym\": %s\n", dlerror ());
+ exit (1);
+ }
+ void *test3 = dlsymfn (handle, "test");
+ if (test3 == NULL)
+ {
+ fprintf (out, "%s\n", dlerror ());
+ exit (1);
+ }
+ else if (test3 != (void *) test2)
+ {
+ fprintf (out, "test2 %p != test3 %p\n", test2, test3);
+ exit (1);
+ }
+
+ dlclose (handle2);
+ dlclose (handle);
+
+ handle = dlmopen (LM_ID_BASE, "modstatic2.so", RTLD_LAZY);
+ if (handle == NULL)
+ {
+ fprintf (out, "%s\n", dlerror ());
+ exit (1);
+ }
+ dlclose (handle);
+
+ handle = dlmopen (LM_ID_NEWLM, "modstatic2.so", RTLD_LAZY);
+ if (handle == NULL)
+ fprintf (out, "LM_ID_NEWLM: %s\n", dlerror ());
+ else
+ {
+ fputs ("LM_ID_NEWLM unexpectedly succeeded\n", out);
+ exit (1);
+ }
+
+ handle = dlopen ("modstatic.so", RTLD_LAZY);
+ if (handle == NULL)
+ {
+ fprintf (out, "%s\n", dlerror ());
+ exit (1);
+ }
+
+ int (*test4) (int);
+ test4 = dlsym (handle, "test");
+ if (test4 == NULL)
+ {
+ fprintf (out, "%s\n", dlerror ());
+ exit (1);
+ }
+
+ res = test4 (16);
+ if (res != 16 + 16)
+ {
+ fprintf (out, "modstatic.so (test) returned %d\n", res);
+ exit (1);
+ }
+
+ res = dladdr1 (test4, &info, &symp, RTLD_DL_SYMENT);
+ if (res == 0)
+ {
+ fputs ("dladdr1 returned 0\n", out);
+ exit (1);
+ }
+ else
+ {
+ if (strstr (info.dli_fname, "modstatic.so") == NULL
+ || strcmp (info.dli_sname, "test") != 0)
+ {
+ fprintf (out, "fname %s sname %s\n", info.dli_fname, info.dli_sname);
+ exit (1);
+ }
+ if (info.dli_saddr != (void *) test4)
+ {
+ fprintf (out, "saddr %p != test %p\n", info.dli_saddr, test4);
+ exit (1);
+ }
+ sym = symp;
+ if (sym == NULL)
+ {
+ fputs ("sym == NULL\n", out);
+ exit (1);
+ }
+ if (ELF32_ST_BIND (sym->st_info) != STB_GLOBAL
+ || ELF32_ST_VISIBILITY (sym->st_other) != STV_DEFAULT)
+ {
+ fprintf (out, "bind %d visibility %d\n",
+ (int) ELF32_ST_BIND (sym->st_info),
+ (int) ELF32_ST_VISIBILITY (sym->st_other));
+ exit (1);
+ }
+ }
+
+ dlclose (handle);
+
+ fputs ("leaving modstatic2.c (test)\n", out);
+ return a + a;
+}