diff options
Diffstat (limited to 'csu/libc-tls.c')
| -rw-r--r-- | csu/libc-tls.c | 29 |
1 files changed, 13 insertions, 16 deletions
diff --git a/csu/libc-tls.c b/csu/libc-tls.c index c37df67e6c..c18b888b31 100644 --- a/csu/libc-tls.c +++ b/csu/libc-tls.c @@ -1,5 +1,5 @@ /* Initialization code for TLS in statically linked application. - Copyright (C) 2002-2013 Free Software Foundation, Inc. + Copyright (C) 2002-2014 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 @@ -42,9 +42,6 @@ static struct struct dtv_slotinfo info[2 + TLS_SLOTINFO_SURPLUS]; } static_slotinfo; -/* Fake link map for the application. */ -static struct link_map static_map; - /* Highest dtv index currently needed. */ size_t _dl_tls_max_dtv_idx; @@ -162,14 +159,16 @@ __libc_setup_tls (size_t tcbsize, size_t tcbalign) _dl_static_dtv[0].counter = (sizeof (_dl_static_dtv) / sizeof (_dl_static_dtv[0])) - 2; // _dl_static_dtv[1].counter = 0; would be needed if not already done + struct link_map *main_map = GL(dl_ns)[LM_ID_BASE]._ns_loaded; + /* Initialize the TLS block. */ #if TLS_TCB_AT_TP _dl_static_dtv[2].pointer.val = ((char *) tlsblock + tcb_offset - roundup (memsz, align ?: 1)); - static_map.l_tls_offset = roundup (memsz, align ?: 1); + main_map->l_tls_offset = roundup (memsz, align ?: 1); #elif TLS_DTV_AT_TP _dl_static_dtv[2].pointer.val = (char *) tlsblock + tcb_offset; - static_map.l_tls_offset = tcb_offset; + main_map->l_tls_offset = tcb_offset; #else # error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined" #endif @@ -193,19 +192,17 @@ __libc_setup_tls (size_t tcbsize, size_t tcbalign) if (__builtin_expect (lossage != NULL, 0)) __libc_fatal (lossage); - /* We have to create a fake link map which normally would be created - by the dynamic linker. It just has to have enough information to - make the TLS routines happy. */ - static_map.l_tls_align = align; - static_map.l_tls_blocksize = memsz; - static_map.l_tls_initimage = initimage; - static_map.l_tls_initimage_size = filesz; - static_map.l_type = lt_executable; - static_map.l_tls_modid = 1; + /* Update the executable's link map with enough information to make + the TLS routines happy. */ + main_map->l_tls_align = align; + main_map->l_tls_blocksize = memsz; + main_map->l_tls_initimage = initimage; + main_map->l_tls_initimage_size = filesz; + main_map->l_tls_modid = 1; init_slotinfo (); // static_slotinfo.si.slotinfo[1].gen = 0; already zero - static_slotinfo.si.slotinfo[1].map = &static_map; + static_slotinfo.si.slotinfo[1].map = main_map; memsz = roundup (memsz, align ?: 1); |