From: Ulrich Weigand <uweigand@de.ibm.com>
Date: Wed, 6 Feb 2002 21:19:46 +0000 (+0000)
Subject: config.gcc (s390x-*-linux*): Add t-linux64 makefile fragment.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e8487c0417fd77c049faa5b7d8ece5e006a5e0ab;p=gcc.git

config.gcc (s390x-*-linux*): Add t-linux64 makefile fragment.

	* config.gcc (s390x-*-linux*): Add t-linux64 makefile fragment.
	* config/s390/t-linux64: New file.
	* config/s390/libgcc-glibc.ver: New file.

From-SVN: r49553
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 8ccd6572647..778b0d7c621 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2002-02-06  Ulrich Weigand  <uweigand@de.ibm.com>
+
+	* config.gcc (s390x-*-linux*): Add t-linux64 makefile fragment.
+	* config/s390/t-linux64: New file.
+	* config/s390/libgcc-glibc.ver: New file.
+
 2002-02-06  Ulrich Weigand  <uweigand@de.ibm.com>
 
 	* config/s390/linux64.h: Delete file.
diff --git a/gcc/config.gcc b/gcc/config.gcc
index 96d1137eed3..0724bc9a8a1 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -2874,7 +2874,7 @@ s390x-*-linux*)
 	tm_p_file=s390/s390-protos.h
 	md_file=s390/s390.md
 	out_file=s390/s390.c
-	tmake_file="t-slibgcc-elf-ver t-linux s390/t-linux"
+	tmake_file="t-slibgcc-elf-ver t-linux s390/t-linux s390/t-linux64"
 	extra_parts="crtbegin.o crtend.o crtbeginS.o crtendS.o crtbeginT.o"
 	if test x$enable_threads = xyes; then
 		thread_file='posix'
diff --git a/gcc/config/s390/libgcc-glibc.ver b/gcc/config/s390/libgcc-glibc.ver
new file mode 100644
index 00000000000..9a421519d80
--- /dev/null
+++ b/gcc/config/s390/libgcc-glibc.ver
@@ -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 s390x,
+# because GLIBC_2.0 does not exist on this architecture, as the first 
+# ever glibc release on the platform was GLIBC_2.2.
+
+%inherit GCC_3.0 GLIBC_2.2
+GLIBC_2.2 {
+  __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/s390/t-linux64 b/gcc/config/s390/t-linux64
new file mode 100644
index 00000000000..d5a92781450
--- /dev/null
+++ b/gcc/config/s390/t-linux64
@@ -0,0 +1,3 @@
+# Override t-slibgcc-elf-ver to export some libgcc symbols with
+# the symbol versions that glibc used.
+SHLIB_MAPFILES = $(srcdir)/libgcc-std.ver $(srcdir)/config/s390/libgcc-glibc.ver