onfig.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.
config/m32r/libgcc-glibc.ver: Add New file.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@91010 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 6b8a217..7e130c9 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2004-11-22 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.
+       * config/m32r/libgcc-glibc.ver: Add New file.
+
 2004-11-22  Nathan Sidwell  <nathan@codesourcery.com>
 
        * bitmap.h (struct bitmap_obstack): New obstack type.

diff --git a/gcc/config/m32r/libgcc-glibc.ver b/gcc/config/m32r/libgcc-glibc.ver
new file mode 100644 (file)
index 0000000..450c4b6
--- /dev/null
+++ b/gcc/config/m32r/libgcc-glibc.ver
@@ -0,0 +1,20 @@
+# 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
+}

diff --git a/gcc/config/m32r/t-linux b/gcc/config/m32r/t-linux
index 0304657..5bf67b4 100644 (file)
--- a/gcc/config/m32r/t-linux
+++ b/gcc/config/m32r/t-linux
@@ -40,3 +40,4 @@ LIBGCC1 =
 CROSS_LIBGCC1 =
 LIBGCC1_TEST =
 
+SHLIB_MAPFILES = $(srcdir)/config/m32r/libgcc-glibc.ver