diff options
Diffstat (limited to 'elf/dl-load.c')
| -rw-r--r-- | elf/dl-load.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/elf/dl-load.c b/elf/dl-load.c index 1650ef953a..9625030e88 100644 --- a/elf/dl-load.c +++ b/elf/dl-load.c @@ -1,5 +1,5 @@ /* Map in a shared object's segments from the file. - Copyright (C) 1995-2005, 2006 Free Software Foundation, Inc. + Copyright (C) 1995-2005, 2006, 2007 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -1078,6 +1078,7 @@ _dl_map_object_from_fd (const char *name, int fd, struct filebuf *fbp, break; case PT_TLS: +#ifdef USE_TLS if (ph->p_memsz == 0) /* Nothing to do for an empty segment. */ break; @@ -1105,7 +1106,7 @@ _dl_map_object_from_fd (const char *name, int fd, struct filebuf *fbp, break; } -#ifdef SHARED +# ifdef SHARED if (l->l_prev == NULL || (mode & __RTLD_AUDIT) != 0) /* We are loading the executable itself when the dynamic linker was executed directly. The setup will happen later. */ @@ -1114,7 +1115,7 @@ _dl_map_object_from_fd (const char *name, int fd, struct filebuf *fbp, /* In a static binary there is no way to tell if we dynamically loaded libpthread. */ if (GL(dl_error_catch_tsd) == &_dl_initial_error_catch_tsd) -#endif +# endif { /* We have not yet loaded libpthread. We can do the TLS setup right now! */ @@ -1147,6 +1148,7 @@ cannot allocate TLS data structures for initial thread"); _dl_deallocate_tls (tcb, 1); goto call_lose; } +#endif /* Uh-oh, the binary expects TLS support but we cannot provide it. */ @@ -1223,6 +1225,8 @@ cannot allocate TLS data structures for initial thread"); loadcmds[nloadcmds - 1].mapstart - c->mapend, PROT_NONE); + l->l_contiguous = 1; + goto postmap; } @@ -1242,6 +1246,7 @@ cannot allocate TLS data structures for initial thread"); /* Remember which part of the address space this object uses. */ l->l_map_start = c->mapstart + l->l_addr; l->l_map_end = l->l_map_start + maplength; + l->l_contiguous = !has_holes; while (c < &loadcmds[nloadcmds]) { @@ -1385,7 +1390,7 @@ cannot allocate TLS data structures for initial thread"); requires that it be executable. We must change the protection of the variable which contains the flags used in the mprotect calls. */ -#ifdef SHARED +#if defined HAVE_Z_RELRO && defined SHARED if ((mode & (__RTLD_DLOPEN | __RTLD_AUDIT)) == __RTLD_DLOPEN) { const uintptr_t p = (uintptr_t) &__stack_prot & -GLRO(dl_pagesize); @@ -1422,9 +1427,11 @@ cannot enable executable stack as shared object requires"); } } +#ifdef USE_TLS /* Adjust the address of the TLS initialization image. */ if (l->l_tls_initimage != NULL) l->l_tls_initimage = (char *) l->l_tls_initimage + l->l_addr; +#endif /* We are done mapping in the file. We no longer need the descriptor. */ if (__builtin_expect (__close (fd) != 0, 0)) @@ -1928,10 +1935,11 @@ open_path (const char *name, size_t namelen, int preloaded, must not be freed using the general free() in libc. */ if (sps->malloced) free (sps->dirs); - +#ifdef HAVE_Z_RELRO /* rtld_search_dirs is attribute_relro, therefore avoid writing into it. */ if (sps != &rtld_search_dirs) +#endif sps->dirs = (void *) -1; } |