diff options
| author | Ulrich Drepper <drepper@redhat.com> | 2009-07-28 21:58:32 -0700 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2009-07-28 21:58:32 -0700 |
| commit | 9655389317c92e5935c47d90c0ba48ca54bd245e (patch) | |
| tree | 0a083bd6f315f83ff3a269fbbd9b55b82996f745 | |
| parent | b0948ffdcbdace63317297d3d3fe2556387dfcbd (diff) | |
| download | glibc-9655389317c92e5935c47d90c0ba48ca54bd245e.tar.gz | |
Fix bookkeeping of static TLS block for TLS_TCB_AT_TP architectures.
| -rw-r--r-- | ChangeLog | 9 | ||||
| -rw-r--r-- | csu/libc-tls.c | 9 | ||||
| -rw-r--r-- | elf/dl-reloc.c | 5 |
3 files changed, 18 insertions, 5 deletions
@@ -1,3 +1,12 @@ +2009-07-28 Ulrich Drepper <drepper@redhat.com> + + * csu/libc-tls.c (__libc_setup_tls) [TLS_TCB_AT_TP]: Don't add TCB + size to memsz. + (init_static_tls) [TLS_TCB_AT_TP]: Add it to GL(dl_tls_static_size) + here. + * elf/dl-reloc.c (_dl_try_allocate_static_tls): Compute freebytes in + two steps to catch bugs. + 2009-07-27 Ulrich Drepper <drepper@redhat.com> * sysdeps/x86_64/tst-xmmymm.sh: Refine testing. The script now diff --git a/csu/libc-tls.c b/csu/libc-tls.c index 0d240ccef9..5a49942861 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, 2003, 2004, 2005, 2006 Free Software Foundation, Inc. + Copyright (C) 2002-2006, 2009 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 @@ -99,6 +99,9 @@ init_static_tls (size_t memsz, size_t align) surplus that permits dynamic loading of modules with IE-model TLS. */ GL(dl_tls_static_size) = roundup (memsz + GL(dl_tls_static_size), TLS_TCB_ALIGN); +#if TLS_TCB_AT_TP + GL(dl_tls_static_size) += TLS_TCB_SIZE; +#endif GL(dl_tls_static_used) = memsz; /* The alignment requirement for the static TLS block. */ GL(dl_tls_static_align) = align; @@ -211,9 +214,7 @@ __libc_setup_tls (size_t tcbsize, size_t tcbalign) memsz = roundup (memsz, align ?: 1); -#if TLS_TCB_AT_TP - memsz += tcbsize; -#elif TLS_DTV_AT_TP +#if TLS_DTV_AT_TP memsz += tcb_offset; #endif diff --git a/elf/dl-reloc.c b/elf/dl-reloc.c index 28f08de3e7..680caadd65 100644 --- a/elf/dl-reloc.c +++ b/elf/dl-reloc.c @@ -61,7 +61,10 @@ _dl_try_allocate_static_tls (struct link_map *map) size_t n; size_t blsize; - freebytes = GL(dl_tls_static_size) - GL(dl_tls_static_used) - TLS_TCB_SIZE; + freebytes = GL(dl_tls_static_size) - GL(dl_tls_static_used); + if (freebytes < TLS_TCB_SIZE) + goto fail; + freebytes -= TLS_TCB_SIZE; blsize = map->l_tls_blocksize + map->l_tls_firstbyte_offset; if (freebytes < blsize) |