Using
>GNU assembler (GNU Binutils) 2.19
>Copyright 2007 Free Software Foundation, Inc.
>This program is free software; you may redistribute it under the terms of
>the GNU General Public License version 3 or later.
>This program has absolutely no warranty.
>This assembler was configured for a target of `mingw32'.
and corresponding GNU ld I get the following output running gcc 4.3 rev 142914:
>W:/WINDOWS/TMP/cc1R156y.o:main.c:(.text+0x17): undefined reference to
>`function'
>collect2: ld returned 1 exit status
when compiling the following to files:
================== main.c =================
extern void function();
int main()
{
function();
return 0;
}
================== weak.c =================
#include <stdio.h>
void __attribute__((weak)) function()
{
printf("Hello from the weak function\n");
}
======== Asm code of weak.c after being processed by gcc ========
.file "weak.c"
.section .rdata,"dr"
LC0:
.ascii "Hello from the weak function\0"
.text
.weak _function
.def _function; .scl 2; .type 32; .endef
_function:
pushl %ebp
movl %esp, %ebp
subl $8, %esp
movl $LC0, (%esp)
call _puts
leave
ret
.def _puts; .scl 2; .type 32; .endef
===================================================
This means as far as I can tell that either ld does not find the weak symbol or
that as does not correctly save the weak symbol in the PE File.
--
Summary: Weak symbols not working on mingw32
Product: binutils
Version: 2.19
Status: NEW
Severity: normal
Priority: P2
Component: ld
AssignedTo: unassigned at sources dot redhat dot com
ReportedBy: tcl_de at gmx dot net
CC: bug-binutils at gnu dot org
http://sourceware.org/bugzilla/show_bug.cgi?id=9687
------- You are receiving this mail because: -------
You are on the CC list for the bug, or are watching someone who is.
_______________________________________________
bug-binutils mailing list
bug-binutils@gnu.org
http://lists.gnu.org/mailman/listinfo/bug-binutils
