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2003-01-27  Ulrich Drepper  <drepper@redhat.com>

	* elf/dl-reloc.c (allocate_static_tls): Avoid arithmetic
	wrap-around in test.
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Ulrich Drepper 2003-01-27 22:08:50 +00:00
parent 62f29da7cb
commit b7e033f7be
2 changed files with 9 additions and 4 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2003-01-27 Ulrich Drepper <drepper@redhat.com>
* elf/dl-reloc.c (allocate_static_tls): Avoid arithmetic
wrap-around in test.
2003-01-26 Andreas Schwab <schwab@suse.de> 2003-01-26 Andreas Schwab <schwab@suse.de>
* sysdeps/wordsize-32/divdi3.c: Export the functions only as * sysdeps/wordsize-32/divdi3.c: Export the functions only as

8
elf/dl-reloc.c
View File

@ -1,5 +1,5 @@
/* Relocate a shared object and resolve its references to other loaded objects. /* Relocate a shared object and resolve its references to other loaded objects.
Copyright (C) 1995,96,97,98,99,2000,2001,2002 Free Software Foundation, Inc. Copyright (C) 1995-2002, 2003 Free Software Foundation, Inc.
This file is part of the GNU C Library. This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or The GNU C Library is free software; you can redistribute it and/or
@ -45,15 +45,15 @@ static bool
allocate_static_tls (struct link_map *map) allocate_static_tls (struct link_map *map)
{ {
size_t offset = roundup (GL(dl_tls_static_used), map->l_tls_align); size_t offset = roundup (GL(dl_tls_static_used), map->l_tls_align);
if (offset + map->l_tls_blocksize > (GL(dl_tls_static_size) if (offset + map->l_tls_blocksize
# if TLS_TCB_AT_TP # if TLS_TCB_AT_TP
- TLS_TCB_SIZE + TLS_TCB_SIZE
# elif TLS_DTV_AT_TP # elif TLS_DTV_AT_TP
/* dl_tls_static_used includes the TCB at the beginning. */ /* dl_tls_static_used includes the TCB at the beginning. */
# else # else
# error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined" # error "Either TLS_TCB_AT_TP or TLS_DTV_AT_TP must be defined"
# endif # endif
)) > GL(dl_tls_static_size))
return false; return false;
map->l_tls_offset = offset; map->l_tls_offset = offset;
GL(dl_tls_static_used) = offset + map->l_tls_blocksize; GL(dl_tls_static_used) = offset + map->l_tls_blocksize;