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[PATCH] to support libgcc_s.so for m32r-linux-gcc 3.4, 4.0
- From: Kazuhiro Inaoka <inaoka dot kazuhiro at renesas dot com>
- To: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
- Date: Wed, 17 Nov 2004 12:04:13 +0900
- Subject: [PATCH] to support libgcc_s.so for m32r-linux-gcc 3.4, 4.0
Hi Nick,
This patch adds support libgcc_s.so and libgcc_eh.a.
This patch is needed to buid glibc, libtool .etc.
Please commit it into 3.4-branch and mainline.
Regards,
Kazuhiro Inaoka
gcc/ChangeLog
2004-11-17 Kazuhiro Inaoka <inaoka.kazuhiro@renesas.com>
* config.gcc: Use t-slibgcc-elf to build libgcc_s.so on
m32r*linux.
* config/m32r/t-linux (SHLIB_MAPFILES): Override to use
m32r/libgcc-glibc.ver.
* configure/m32r/libgcc-glibc.ver: Add New file.
Index: gcc/config.gcc
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config.gcc,v
retrieving revision 1.495
diff -u -r1.495 config.gcc
--- gcc/config.gcc 21 Oct 2004 22:28:22 -0000 1.495
+++ gcc/config.gcc 17 Nov 2004 02:35:38 -0000
@@ -1195,7 +1195,7 @@
tm_file="dbxelf.h elfos.h svr4.h linux.h ${tm_file} m32r/linux.h"
extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
# We override the tmake_file for linux -- why?
- tmake_file="m32r/t-linux"
+ tmake_file="t-slibgcc-elf-ver m32r/t-linux"
gnu_ld=yes
use_fixproto=yes
if test x$enable_threads = xyes; then
@@ -1206,7 +1206,7 @@
tm_file="dbxelf.h elfos.h svr4.h linux.h m32r/little.h ${tm_file} m32r/linux.h"
extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
# We override the tmake_file for linux -- why?
- tmake_file="m32r/t-linux"
+ tmake_file="t-slibgcc-elf-ver m32r/t-linux"
gnu_ld=yes
use_fixproto=yes
if test x$enable_threads = xyes; then
Index: gcc/config/m32r/t-linux
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/m32r/t-linux,v
retrieving revision 1.1
diff -u -r1.1 t-linux
--- gcc/config/m32r/t-linux 31 Dec 2003 10:33:02 -0000 1.1
+++ gcc/config/m32r/t-linux 17 Nov 2004 02:35:40 -0000
@@ -40,3 +40,5 @@
CROSS_LIBGCC1 =
LIBGCC1_TEST =
+SHLIB_MAPFILES = $(srcdir)/config/m32r/libgcc-glibc.ver
+
diff -uN org/libgcc-glibc.ver gcc/config/m32r/libgcc-glibc.ver
--- org/libgcc-glibc.ver 1970-01-01 09:00:00.000000000 +0900
+++ gcc/config/m32r/libgcc-glibc.ver 2004-11-16 20:47:57.000000000 +0900
@@ -0,0 +1,21 @@
+# In order to work around the very problems that force us to now generally
+# create a libgcc.so, glibc reexported a number of routines from libgcc.a.
+# By now choosing the same version tags for these specific routines, we
+# maintain enough binary compatibility to allow future versions of glibc
+# to defer implementation of these routines to libgcc.so via DT_AUXILIARY.
+
+# Note that we cannot use the default libgcc-glibc.ver file on sh,
+# because GLIBC_2.0 does not exist on this architecture, as the first
+# ever glibc release on the platform was GLIBC_2.3.
+
+%inherit GCC_3.0 GLIBC_2.3
+GLIBC_2.3 {
+ __register_frame
+ __register_frame_table
+ __deregister_frame
+ __register_frame_info
+ __deregister_frame_info
+ __frame_state_for
+ __register_frame_info_table
+}
+