+2005-08-30 Ulrich Drepper <drepper@redhat.com>
+
+ * sysdeps/ieee754/flt-32/e_hypotf.c [!__STDC__]: Fix function name.
+
+2005-08-01 Bob Wilson <bob.wilson@acm.org>
+ Richard Sandiford <richard@codesourcery.com>
+
+ * sysdeps/ieee754/flt-32/e_hypotf.c (__ieee754_hypotf): Add missing
+ exponent bias to the value for 2^126.
+
+2005-08-30 Jakub Jelinek <jakub@redhat.com>
+ Alan Modra <amodra@bigpond.net.au>
+
+ * elf/dl-addr.c (_dl_addr): Use DL_ADDR_SYM_MATCH macro.
+ * sysdeps/generic/ldsodefs.h (DL_ADDR_SYM_MATCH): Define.
+ * sysdeps/unix/sysv/linux/powerpc/powerpc64/ldsodefs.h: New file.
+
2005-08-23 Ulrich Drepper <drepper@redhat.com>
* nscd/nscd.c (main): Use error while process isn't running in the
the string table which generally follows the symbol table. */
symtabend = (const ElfW(Sym) *) strtab;
- /* We assume that the string table follows the symbol table,
- because there is no way in ELF to know the size of the
- dynamic symbol table!! */
const ElfW(Sym) *matchsym;
for (matchsym = NULL; (void *) symtab < (void *) symtabend; ++symtab)
- if (addr >= match->l_addr + symtab->st_value
+ if ((ELFW(ST_BIND) (symtab->st_info) == STB_GLOBAL
+ || ELFW(ST_BIND) (symtab->st_info) == STB_WEAK)
#if defined USE_TLS
&& ELFW(ST_TYPE) (symtab->st_info) != STT_TLS
#endif
- && ((symtab->st_size == 0
- && addr == match->l_addr + symtab->st_value)
- || addr < match->l_addr + symtab->st_value + symtab->st_size)
- && symtab->st_name < strtabsize
- && (matchsym == NULL || matchsym->st_value < symtab->st_value)
- && (ELFW(ST_BIND) (symtab->st_info) == STB_GLOBAL
- || ELFW(ST_BIND) (symtab->st_info) == STB_WEAK))
+ && DL_ADDR_SYM_MATCH (match, symtab, matchsym, addr)
+ && symtab->st_name < strtabsize)
matchsym = (ElfW(Sym) *) symtab;
if (mapp)
# define LOOKUP_VALUE(map) map
# define LOOKUP_VALUE_ADDRESS(map) ((map) ? (map)->l_addr : 0)
-/* on some architectures a pointer to a function is not just a pointer
+/* On some architectures a pointer to a function is not just a pointer
to the actual code of the function but rather an architecture
specific descriptor. */
#ifndef ELF_FUNCTION_PTR_IS_SPECIAL
# define DL_DT_FINI_ADDRESS(map, start) (start)
#endif
+/* On some architectures dladdr can't use st_size of all symbols this way. */
+#define DL_ADDR_SYM_MATCH(L, SYM, MATCHSYM, ADDR) \
+ ((ADDR) >= (L)->l_addr + (SYM)->st_value \
+ && (((SYM)->st_size == 0 \
+ && (ADDR) == (L)->l_addr + (SYM)->st_value) \
+ || (ADDR) < (L)->l_addr + (SYM)->st_value + (SYM)->st_size) \
+ && ((MATCHSYM) == NULL || (MATCHSYM)->st_value < (SYM)->st_value))
+
/* Unmap a loaded object, called by _dl_close (). */
#ifndef DL_UNMAP_IS_SPECIAL
# define DL_UNMAP(map) \
#ifdef __STDC__
float __ieee754_hypotf(float x, float y)
#else
- float __ieee754_hypot(x,y)
+ float __ieee754_hypotf(x,y)
float x, y;
#endif
{
if(hb < 0x26800000) { /* b < 2**-50 */
if(hb <= 0x007fffff) { /* subnormal b or 0 */
if(hb==0) return a;
- SET_FLOAT_WORD(t1,0x3f000000); /* t1=2^126 */
+ SET_FLOAT_WORD(t1,0x7e800000); /* t1=2^126 */
b *= t1;
a *= t1;
k -= 126;
--- /dev/null
+/* Run-time dynamic linker data structures for loaded ELF shared objects.
+ Copyright (C) 2005 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
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _LDSODEFS_H
+
+/* Get the real definitions. */
+#include_next <ldsodefs.h>
+
+/* Now define our stuff. */
+
+static __always_inline bool
+_dl_ppc64_is_opd_sym (const struct link_map *l, const ElfW(Sym) *sym)
+{
+ return (ELFW(ST_TYPE) (sym->st_info) == STT_FUNC
+ && l->l_addr + sym->st_value >= (ElfW(Addr)) l->l_ld
+ && l->l_addr + sym->st_value < l->l_map_end
+ && sym->st_size != 0);
+}
+
+static __always_inline bool
+_dl_ppc64_addr_sym_match (const struct link_map *l, const ElfW(Sym) *sym,
+ const ElfW(Sym) *matchsym, ElfW(Addr) addr)
+{
+ ElfW(Addr) value = l->l_addr + sym->st_value;
+ if (_dl_ppc64_is_opd_sym (l, sym))
+ {
+ if (addr < value || addr >= value + 24)
+ {
+ value = *(ElfW(Addr) *) value;
+ if (addr < value || addr >= value + sym->st_size)
+ return false;
+ }
+ }
+ else if (sym->st_size == 0)
+ {
+ if (addr != value)
+ return false;
+ }
+ else if (addr < value || addr >= value + sym->st_size)
+ return false;
+
+ if (matchsym == NULL)
+ return true;
+
+ ElfW(Addr) matchvalue = l->l_addr + matchsym->st_value;
+ if (_dl_ppc64_is_opd_sym (l, matchsym)
+ && (addr < matchvalue || addr > matchvalue + 24))
+ matchvalue = *(ElfW(Addr) *) matchvalue;
+
+ return matchvalue < value;
+}
+
+/* If this is a function symbol defined past the end of our dynamic
+ section, then it must be a function descriptor. Allow these symbols
+ to match their associated function code range as well as the
+ descriptor addresses. */
+#undef DL_ADDR_SYM_MATCH
+#define DL_ADDR_SYM_MATCH(L, SYM, MATCHSYM, ADDR) \
+ _dl_ppc64_addr_sym_match (L, SYM, MATCHSYM, ADDR)
+
+#endif /* ldsodefs.h */
projects / external / glibc.git / commitdiff