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authorRoland McGrath <roland@gnu.org>1996-07-08 06:18:25 +0000
committerRoland McGrath <roland@gnu.org>1996-07-08 06:18:25 +0000
commitaf5b3bc33bbaf9151c34a351bdb257b90d407d5b (patch)
tree7a9d35a2cea2549dad8c3c9276208962732e4954 /elf/dl-minimal.c
parent0676b5fdca8d4f2a8dd442db4d50dc2c1ee8729f (diff)
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Mon Jul 8 02:14:25 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>cvs/libc-960708
* libc-symbols.h [GCC >= 2.7] (strong_alias, weak_alias): Use extern storage class. GCC gives an error for non-extern data defns with the alias attribute. Mon Jul 8 00:11:15 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu> * libc-symbols.h (weak_function): New macro. For GCC 2.7+ define as __attribute__ ((weak)). * elf/dl-minimal.c: Use weak_function as keyword in function defns instead of weak_symbol (NAME) after the defn. * stdlib/strtol.c: Likewise. * sysdeps/mach/hurd/dl-sysdep.c: Likewise. * sysdeps/alpha/dl-machine.h (elf_machine_rela) [RTLD_BOOTSTRAP]: If this is defined, don't declare _dl_rtld_map as weak, and don't check for MAP pointing to it. RESOLVE is always null in this case, so test with #ifdef instead of if. * libc-symbols.h (symbol_set_declare): Use weak_extern instead of weak_symbol. * csu/initfini.c (_init): Likewise. * locale/setlocale.c (DEFINE_CATEGORY): Likewise. * misc/efgcvt_r.c: Likewise. * sysdeps/alpha/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/i386/dl-machine.h (elf_machine_rel): Likewise. * libc-symbols.h [ASSEMBLER] (weak_symbol): Macro removed. It was not used in any assembler code. (weak_symbol_asm): Renamed to weak_extern_asm. (weak_extern): New macro replaces weak_symbol for weak extern refs; define to weak_extern_asm for [!ASSEMBLER]. * libc-symbols.h [! ASSEMBLER] [HAVE_WEAK_SYMBOLS] (weak_symbol_asm, weak_alias_asm): New macros, renamed from weak_symbol/weak_alias; define those now as aliases. Change conditional to use __attribute__ syntax for GCC 2.7+, not 2.8+ [GCC >= 2.7] [HAVE_WEAK_SYMBOLS] (weak_symbol): Do weak_symbol_asm after GCC weak attribute decl.
Diffstat (limited to 'elf/dl-minimal.c')
-rw-r--r--elf/dl-minimal.c26
1 files changed, 9 insertions, 17 deletions
diff --git a/elf/dl-minimal.c b/elf/dl-minimal.c
index bf19fee..fd7bf05 100644
--- a/elf/dl-minimal.c
+++ b/elf/dl-minimal.c
@@ -30,7 +30,7 @@ Cambridge, MA 02139, USA. */
static void *alloc_ptr, *alloc_end, *alloc_last_block;
-void *
+void * weak_function
malloc (size_t n)
{
extern int _dl_zerofd;
@@ -71,20 +71,18 @@ malloc (size_t n)
alloc_ptr += n;
return alloc_last_block;
}
-weak_symbol (malloc)
/* This will rarely be called. */
-void
+void weak_function
free (void *ptr)
{
/* We can free only the last block allocated. */
if (ptr == alloc_last_block)
alloc_ptr = alloc_last_block;
}
-weak_symbol (free)
/* This is only called with the most recent block returned by malloc. */
-void *
+void * weak_function
realloc (void *ptr, size_t n)
{
void *new;
@@ -94,31 +92,27 @@ realloc (void *ptr, size_t n)
assert (new == ptr);
return new;
}
-weak_symbol (realloc)
/* Avoid signal frobnication in setjmp/longjmp. Keeps things smaller. */
#include <setjmp.h>
-int __sigjmp_save (sigjmp_buf env, int savemask)
+int weak_function
+__sigjmp_save (sigjmp_buf env, int savemask)
{ env[0].__mask_was_saved = savemask; return 0; }
-weak_symbol (__sigjmp_save)
-void
+void weak_function
longjmp (jmp_buf env, int val) { __longjmp (env[0].__jmpbuf, val); }
-weak_symbol (longjmp)
-
/* Define our own stub for the localization function used by strerror.
English-only in the dynamic linker keeps it smaller. */
-char *
+char * weak_function
__dgettext (const char *domainname, const char *msgid)
{
assert (domainname == _libc_intl_domainname);
return (char *) msgid;
}
-weak_symbol (__dgettext)
weak_alias (__dgettext, dgettext)
#ifndef NDEBUG
@@ -127,7 +121,7 @@ weak_alias (__dgettext, dgettext)
If we are linked into the user program (-ldl), the normal __assert_fail
defn can override this one. */
-void
+void weak_function
__assert_fail (const char *assertion,
const char *file, unsigned int line, const char *function)
{
@@ -140,9 +134,8 @@ __assert_fail (const char *assertion,
NULL);
}
-weak_symbol (__assert_fail)
-void
+void weak_function
__assert_perror_fail (int errnum,
const char *file, unsigned int line,
const char *function)
@@ -155,6 +148,5 @@ __assert_perror_fail (int errnum,
"Unexpected error: ", strerror (errnum), "\n", NULL);
}
-weak_symbol (__assert_perror_fail)
#endif