PATCH: mingw32.h: define JCR_SECTION_NAME when cross compiling and weak symbols are not supported by the build machine
Danny Smith
dansmister@gmail.com
Wed Jul 2 07:15:00 GMT 2008
On Mon, Jun 30, 2008 at 1:14 PM, Marcelo Slomp <mslomp@linuxmail.org> wrote:
> Problem: cross compiling GCC 4.x series for the mingw32 target fails in gcc/config/i386/cygming-crtbegin.c due to a__JCR_LIST__ conflict.
> There is a post in the mingw-users list archives that expose this issue:
> http://lists-archives.org/mingw-users/09432-help-cross-compile-cygming-crtbegin-c-compile-error.html
>
> Solution: JCR_SECTION_NAME is defined only if weak symbols are supported. (gcc/defaults.h:363)
> This is valid, for example, in a native mingw32 build, but this is not ever true when cross compiling,
> depending on the build machine (here, i686-pc-linux-gnu).
> In these cases, we need define it, because TARGET_USE_JCR_SECTION is always 1, causing the problem
> mentioned in the post above (now gcc/config/i386/cygming-crtbegin.c:80 - no :72).
>
> Marcelo A. B. Slomp
The problem was that we were always using .,jcr section without
regard for GAS_HAVE_WEAK
I have applied this patch to fix.
2008-07-02 Danny Smith <dannysmith@users.sourceforge.net>
* config/i386/mingw32.h (TARGET_USE_JCR_SECTION): Undef to let
defaults.h definition apply.
Index: config/i386/mingw32.h
===================================================================
--- config/i386/mingw32.h (revision 137339)
+++ config/i386/mingw32.h (working copy)
@@ -160,9 +160,8 @@
#undef TARGET_N_FORMAT_TYPES
#define TARGET_N_FORMAT_TYPES 3
-/* JCR_SECTION works on mingw32. */
+/* Let defaults.h definition of TARGET_USE_JCR_SECTION apply. */
#undef TARGET_USE_JCR_SECTION
-#define TARGET_USE_JCR_SECTION 1
#undef MINGW_ENABLE_EXECUTE_STACK
#define MINGW_ENABLE_EXECUTE_STACK \
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