Update.

2001-10-02  Jakub Jelinek  <jakub@redhat.com>
	    H.J. Lu  <hjl@gnu.org>

	* configure.in (libc_cv_gcc_static_libgcc): Set to -static-libgcc
	if gcc supports this flag.
	(EXPORT_UNWIND_FIND_FDE): Define unless target configure disables it.
	(gcc3): Allow glibc to be compiled with gcc 3.x.
	* config.h.in (EXPORT_UNWIND_FIND_FDE): Add.
	* config.make.in (static-libgcc, unwind-find-fde): Add.
	* Makerules (build-shlib-helper, build-module-helper): Use it.
	* scripts/versions.awk: Make sure GLIBC_ versions come first.
	* elf/soinit.c (__libc_global_ctors): Set tbases and dbases if
	necessary.
	(_fini): Call __deregister_frame_info_bases if
	__register_frame_info_bases was used to register.
	* elf/Versions (__register_frame_info, __deregister_frame_info): Add
	for GLIBC_2.0.
	(__register_frame_info_bases, __register_frame_info_table_bases,
	__deregister_frame_info_bases, _Unwind_Find_FDE): Add for GLIBC_2.2.5.
	* elf/Makefile (routines): Add unwind-dw2-fde.
	(shared-only-routines): Add unwind-dw2-fde.
	* sysdeps/alpha/gccframe.h: New file.
	* sysdeps/arm/gccframe.h: New file.
	* sysdeps/generic/framestate.c: New file.
	* sysdeps/generic/dwarf2.h: New file.
	* sysdeps/generic/gccframe.h (struct object): Update from gcc 3.0.
	* sysdeps/generic/unwind-dw2-fde.c: New file.
	* sysdeps/unix/sysv/linux/ia64/unwind-dw2-fde.c: New file.
	* sysdeps/generic/unwind-dw2-fde.h: New file.
	* sysdeps/generic/unwind-dw2.c: New file.
	* sysdeps/generic/unwind-pe.h: New file.
	* sysdeps/generic/unwind.h: New file.
	* sysdeps/hppa/gccframe.h: New file.
	* sysdeps/i386/gccframe.h: New file.
	* sysdeps/m68k/gccframe.h: New file.
	* sysdeps/mips/gccframe.h: New file.
	* sysdeps/powerpc/gccframe.h: New file.
	* sysdeps/s390/gccframe.h: New file.
	* sysdeps/sh/gccframe.h: New file.
	* sysdeps/sparc/gccframe.h: New file.
	* sysdeps/vax/gccframe.h: New file.
	* sysdeps/unix/sysv/linux/configure.in (libc_cv_gcc_unwind_find_fde):
	Set on all architectures except ia64.
	* sysdeps/mach/hurd/configure.in (libc_cv_gcc_unwind_find_fde): Set
	for i386.
	* sysdeps/mach/hurd/i386/Versions (__register_frame_info,
	__deregister_frame_info): Move to elf/Versions.
	* sysdeps/unix/sysv/linux/m68k/Versions: Likewise.
	* sysdeps/unix/sysv/linux/arm/Versions: Likewise.
	* sysdeps/unix/sysv/linux/alpha/Versions: Likewise.
	* sysdeps/unix/sysv/linux/i386/Versions: Likewise.
	* sysdeps/unix/sysv/linux/mips/Versions: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/Versions: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/Versions: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/Versions: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/Versions: Likewise.
	* sysdeps/mach/hurd/i386/Makefile (sysdep-routines): Add framestate.
	* sysdeps/unix/sysv/linux/arm/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/alpha/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/i386/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/m68k/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/mips/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/sparc/Makefile: Likewise.

	* sysdeps/unix/sysv/linux/ia64/ldd-rewrite.sed: New file.
	* sysdeps/unix/sysv/linux/s390/ldd-rewrite.sed: New file.
	* sysdeps/generic/strnlen.c: New file.

20 files changed, 113 insertions, 21 deletions

diff --git a/sysdeps/unix/sysv/linux/alpha/Makefile b/sysdeps/unix/sysv/linux/alpha/Makefile
index 62536ae..5c04677 100644
--- a/sysdeps/unix/sysv/linux/alpha/Makefile
+++ b/sysdeps/unix/sysv/linux/alpha/Makefile
@@ -23,3 +23,11 @@ ifeq ($(subdir),signal)
 sysdep_routines += rt_sigsuspend rt_sigprocmask rt_sigtimedwait	\
 		   rt_sigqueueinfo rt_sigaction rt_sigpending
 endif
+
+ifeq ($(subdir),elf)
+ifeq (yes,$(build-shared))
+# This is needed to support g++ v2 and v3.
+sysdep_routines += framestate
+shared-only-routines += framestate
+endif
+endif
diff --git a/sysdeps/unix/sysv/linux/alpha/Versions b/sysdeps/unix/sysv/linux/alpha/Versions
index d89ef6a..c18816c 100644
--- a/sysdeps/unix/sysv/linux/alpha/Versions
+++ b/sysdeps/unix/sysv/linux/alpha/Versions
@@ -6,8 +6,7 @@ libc {
 
     # Exception handling support functions from libgcc
     __register_frame; __register_frame_table; __deregister_frame;
-    __register_frame_info; __deregister_frame_info; __frame_state_for;
-    __register_frame_info_table;
+    __frame_state_for; __register_frame_info_table;
 
     # b*
     bus_base; bus_base_sparse;
diff --git a/sysdeps/unix/sysv/linux/arm/Makefile b/sysdeps/unix/sysv/linux/arm/Makefile
index aeaaa39..66a93ba 100644
--- a/sysdeps/unix/sysv/linux/arm/Makefile
+++ b/sysdeps/unix/sysv/linux/arm/Makefile
@@ -19,4 +19,10 @@ sysdep-dl-routines += dl-procinfo
 sysdep_routines += dl-procinfo
 # extra shared linker files to link only into dl-allobjs.so
 sysdep-rtld-routines += dl-procinfo
+
+ifeq (yes,$(build-shared))
+# This is needed to support g++ v2 and v3.
+sysdep_routines += framestate
+shared-only-routines += framestate
+endif
 endif
diff --git a/sysdeps/unix/sysv/linux/arm/Versions b/sysdeps/unix/sysv/linux/arm/Versions
index aeda9fa..32cb185 100644
--- a/sysdeps/unix/sysv/linux/arm/Versions
+++ b/sysdeps/unix/sysv/linux/arm/Versions
@@ -2,8 +2,7 @@ libc {
   GLIBC_2.0 {
     # Exception handling support functions from libgcc
     __register_frame; __register_frame_table; __deregister_frame;
-    __register_frame_info; __deregister_frame_info; __frame_state_for;
-    __register_frame_info_table;
+    __frame_state_for; __register_frame_info_table;
   }
   GLIBC_2.1 {
     ioperm; iopl;
diff --git a/sysdeps/unix/sysv/linux/configure b/sysdeps/unix/sysv/linux/configure
index db1666d..72fa843 100644
--- a/sysdeps/unix/sysv/linux/configure
+++ b/sysdeps/unix/sysv/linux/configure
@@ -54,6 +54,11 @@ fi
 case "$machine" in
   alpha*)
     arch_minimum_kernel=2.1.100
+    libc_cv_gcc_unwind_find_fde=yes
+    ;;
+  i386*)
+    libc_cv_gcc_unwind_find_fde=yes
+    arch_minimum_kernel=2.0.10
     ;;
   ia64*)
     arch_minimum_kernel=2.4.0
@@ -63,9 +68,19 @@ case "$machine" in
     ;;
   mips*)
     arch_minimum_kernel=2.2.15
+    libc_cv_gcc_unwind_find_fde=yes
+    ;;
+  powerpc)
+    libc_cv_gcc_unwind_find_fde=yes
+    arch_minimum_kernel=2.0.10
     ;;
   sh*)
     arch_minimum_kernel=2.3.99
+    libc_cv_gcc_unwind_find_fde=yes
+    ;;
+  sparc*)
+    libc_cv_gcc_unwind_find_fde=yes
+    arch_minimum_kernel=2.0.10
     ;;
   x86_64*)
     arch_minimum_kernel=2.4.0
@@ -91,11 +106,11 @@ fi
 
 if test -n "$minimum_kernel"; then
   echo $ac_n "checking for kernel header at least $minimum_kernel""... $ac_c" 1>&6
-echo "configure:95: checking for kernel header at least $minimum_kernel" >&5
+echo "configure:110: checking for kernel header at least $minimum_kernel" >&5
   decnum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/(\1 * 65536 + \2 * 256 + \3)/'`;
   abinum=`echo "$minimum_kernel.0.0.0" | sed 's/\([0-9]*\)\.\([0-9]*\)\.\([0-9]*\).*/\1,\2,\3/'`;
   cat > conftest.$ac_ext <<EOF
-#line 99 "configure"
+#line 114 "configure"
 #include "confdefs.h"
 #include <linux/version.h>
 #if LINUX_VERSION_CODE < $decnum
@@ -128,6 +143,12 @@ EOF
   fi
 fi
 
+# The result of the above test for the use of the FDE code is invalid if
+# the user overrides the decision about the minimum ABI.
+if test "$oldest_abi" != default && test "2.2.4" \< "$oldest_abi"; then
+  libc_cv_gcc_unwind_find_fde=no
+fi
+
 if test -n "$sysheaders"; then
   CPPFLAGS=$OLD_CPPFLAGS
 fi
@@ -219,7 +240,7 @@ if test $host = $build; then
     ac_prefix=$ac_default_prefix
   fi
   echo $ac_n "checking for symlinks in ${ac_prefix}/include""... $ac_c" 1>&6
-echo "configure:223: checking for symlinks in ${ac_prefix}/include" >&5
+echo "configure:244: checking for symlinks in ${ac_prefix}/include" >&5
   ac_message=
   if test -L ${ac_prefix}/include/net; then
     ac_message="$ac_message
diff --git a/sysdeps/unix/sysv/linux/configure.in b/sysdeps/unix/sysv/linux/configure.in
index dfae5a1..709d8e9 100644
--- a/sysdeps/unix/sysv/linux/configure.in
+++ b/sysdeps/unix/sysv/linux/configure.in
@@ -41,6 +41,11 @@ fi
 case "$machine" in
   alpha*)
     arch_minimum_kernel=2.1.100
+    libc_cv_gcc_unwind_find_fde=yes
+    ;;
+  i386*)
+    libc_cv_gcc_unwind_find_fde=yes
+    arch_minimum_kernel=2.0.10
     ;;
   ia64*)
     arch_minimum_kernel=2.4.0
@@ -50,9 +55,19 @@ case "$machine" in
     ;;
   mips*)
     arch_minimum_kernel=2.2.15
+    libc_cv_gcc_unwind_find_fde=yes
+    ;;
+  powerpc)
+    libc_cv_gcc_unwind_find_fde=yes
+    arch_minimum_kernel=2.0.10
     ;;
   sh*)
     arch_minimum_kernel=2.3.99
+    libc_cv_gcc_unwind_find_fde=yes
+    ;;
+  sparc*)
+    libc_cv_gcc_unwind_find_fde=yes
+    arch_minimum_kernel=2.0.10
     ;;
   x86_64*)
     arch_minimum_kernel=2.4.0
@@ -96,6 +111,12 @@ eat flaming death
   fi
 fi
 
+# The result of the above test for the use of the FDE code is invalid if
+# the user overrides the decision about the minimum ABI.
+if test "$oldest_abi" != default && test "2.2.4" \< "$oldest_abi"; then
+  libc_cv_gcc_unwind_find_fde=no
+fi
+
 if test -n "$sysheaders"; then
   CPPFLAGS=$OLD_CPPFLAGS
 fi
diff --git a/sysdeps/unix/sysv/linux/i386/Makefile b/sysdeps/unix/sysv/linux/i386/Makefile
index 4a219b8..4fc9434 100644
--- a/sysdeps/unix/sysv/linux/i386/Makefile
+++ b/sysdeps/unix/sysv/linux/i386/Makefile
@@ -12,6 +12,12 @@ sysdep-dl-routines += dl-procinfo
 sysdep_routines += dl-procinfo
 # extra shared linker files to link only into dl-allobjs.so
 sysdep-rtld-routines += dl-procinfo
+
+ifeq (yes,$(build-shared))
+# This is needed to support g++ v2 and v3.
+sysdep_routines += framestate
+shared-only-routines += framestate
+endif
 endif
 
 ifeq ($(subdir),resource)
diff --git a/sysdeps/unix/sysv/linux/i386/Versions b/sysdeps/unix/sysv/linux/i386/Versions
index 3015c41..83445a1 100644
--- a/sysdeps/unix/sysv/linux/i386/Versions
+++ b/sysdeps/unix/sysv/linux/i386/Versions
@@ -2,8 +2,7 @@ libc {
   GLIBC_2.0 {
     # Exception handling support functions from libgcc
     __register_frame; __register_frame_table; __deregister_frame;
-    __register_frame_info; __deregister_frame_info; __frame_state_for;
-    __register_frame_info_table;
+    __frame_state_for; __register_frame_info_table;
 
     ioperm; iopl;
 
diff --git a/sysdeps/unix/sysv/linux/ia64/unwind-dw2-fde.c b/sysdeps/unix/sysv/linux/ia64/unwind-dw2-fde.c
new file mode 100644
index 0000000..15d12ab
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/ia64/unwind-dw2-fde.c
@@ -0,0 +1 @@
+/* Linux/ia64 does not need unwind table registry. */
diff --git a/sysdeps/unix/sysv/linux/m68k/Makefile b/sysdeps/unix/sysv/linux/m68k/Makefile
index 55eeeab..83ea370 100644
--- a/sysdeps/unix/sysv/linux/m68k/Makefile
+++ b/sysdeps/unix/sysv/linux/m68k/Makefile
@@ -10,6 +10,12 @@ endif
 ifeq ($(subdir),elf)
 sysdep-others += lddlibc4
 install-bin += lddlibc4
+
+ifeq (yes,$(build-shared))
+# This is needed to support g++ v2 and v3.
+sysdep_routines += framestate
+shared-only-routines += framestate
+endif
 endif
 
 ifeq ($(subdir),resource)
diff --git a/sysdeps/unix/sysv/linux/m68k/Versions b/sysdeps/unix/sysv/linux/m68k/Versions
index 6c650e2..0799bf3 100644
--- a/sysdeps/unix/sysv/linux/m68k/Versions
+++ b/sysdeps/unix/sysv/linux/m68k/Versions
@@ -2,8 +2,7 @@ libc {
   GLIBC_2.0 {
     # Exception handling support functions from libgcc
     __register_frame; __register_frame_table; __deregister_frame;
-    __register_frame_info; __deregister_frame_info; __frame_state_for;
-    __register_frame_info_table;
+    __frame_state_for; __register_frame_info_table;
 
     # c*
     cacheflush;
diff --git a/sysdeps/unix/sysv/linux/mips/Makefile b/sysdeps/unix/sysv/linux/mips/Makefile
index 1f9fc2d..e46cfef 100644
--- a/sysdeps/unix/sysv/linux/mips/Makefile
+++ b/sysdeps/unix/sysv/linux/mips/Makefile
@@ -9,3 +9,11 @@ sysdep_routines += cachectl cacheflush sysmips _test_and_set
 
 sysdep_headers += sys/cachectl.h sys/sysmips.h sys/tas.h
 endif
+
+ifeq ($(subdir),elf)
+ifeq (yes,$(build-shared))
+# This is needed to support g++ v2 and v3.
+sysdep_routines += framestate
+shared-only-routines += framestate
+endif
+endif
diff --git a/sysdeps/unix/sysv/linux/mips/Versions b/sysdeps/unix/sysv/linux/mips/Versions
index d65bf18..f71d9b5 100644
--- a/sysdeps/unix/sysv/linux/mips/Versions
+++ b/sysdeps/unix/sysv/linux/mips/Versions
@@ -2,8 +2,7 @@ libc {
   GLIBC_2.0 {
     # Exception handling support functions from libgcc
     __register_frame; __register_frame_table; __deregister_frame;
-    __register_frame_info; __deregister_frame_info; __frame_state_for;
-    __register_frame_info_table;
+    __frame_state_for; __register_frame_info_table;
 
     # Needed by gcc:
     _flush_cache;
diff --git a/sysdeps/unix/sysv/linux/powerpc/Makefile b/sysdeps/unix/sysv/linux/powerpc/Makefile
index 931611f..889df40 100644
--- a/sysdeps/unix/sysv/linux/powerpc/Makefile
+++ b/sysdeps/unix/sysv/linux/powerpc/Makefile
@@ -6,3 +6,11 @@ endif
 ifeq ($(subdir),resource)
 sysdep_routines += oldgetrlimit64
 endif
+
+ifeq ($(subdir),elf)
+ifeq (yes,$(build-shared))
+# This is needed to support g++ v2 and v3.
+sysdep_routines += framestate
+shared-only-routines += framestate
+endif
+endif
diff --git a/sysdeps/unix/sysv/linux/powerpc/Versions b/sysdeps/unix/sysv/linux/powerpc/Versions
index a2296a9..d0bf4a8 100644
--- a/sysdeps/unix/sysv/linux/powerpc/Versions
+++ b/sysdeps/unix/sysv/linux/powerpc/Versions
@@ -2,8 +2,7 @@ libc {
   GLIBC_2.0 {
     # Exception handling support functions from libgcc
     __register_frame; __register_frame_table; __deregister_frame;
-    __register_frame_info; __deregister_frame_info; __frame_state_for;
-    __register_frame_info_table;
+    __frame_state_for; __register_frame_info_table;
   }
   GLIBC_2.2 {
     # functions used in other libraries
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/Makefile b/sysdeps/unix/sysv/linux/s390/s390-32/Makefile
index bac110a..75844f4 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/Makefile
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/Makefile
@@ -6,3 +6,11 @@ endif
 ifeq ($(subdir),resource)
 sysdep_routines += oldgetrlimit64
 endif
+
+ifeq ($(subdir),elf)
+ifeq (yes,$(build-shared))
+# This is needed to support g++ v2 and v3.
+sysdep_routines += framestate
+shared-only-routines += framestate
+endif
+endif
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/Versions b/sysdeps/unix/sysv/linux/s390/s390-32/Versions
index 5a56361..3c45a30 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/Versions
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/Versions
@@ -2,8 +2,7 @@ libc {
   GLIBC_2.0 {
     # Exception handling support functions from libgcc
     __register_frame; __register_frame_table; __deregister_frame;
-    __register_frame_info; __deregister_frame_info; __frame_state_for;
-    __register_frame_info_table;
+    __frame_state_for; __register_frame_info_table;
   }
   GLIBC_2.2 {
     # functions used in other libraries
diff --git a/sysdeps/unix/sysv/linux/sparc/Makefile b/sysdeps/unix/sysv/linux/sparc/Makefile
index 9b46a7e..7059a1a 100644
--- a/sysdeps/unix/sysv/linux/sparc/Makefile
+++ b/sysdeps/unix/sysv/linux/sparc/Makefile
@@ -42,3 +42,11 @@ $(objpfx)syscall-%.h $(objpfx)syscall-%.d: ../sysdeps/unix/sysv/linux/sys/syscal
 	mv -f $(@:.h=.d)-t2 $(@:.h=.d)
 
 endif
+
+ifeq ($(subdir),elf)
+ifeq (yes,$(build-shared))
+# This is needed to support g++ v2 and v3.
+sysdep_routines += framestate
+shared-only-routines += framestate
+endif
+endif
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/Versions b/sysdeps/unix/sysv/linux/sparc/sparc32/Versions
index d7a19f8..4529e7f 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/Versions
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/Versions
@@ -2,8 +2,7 @@ libc {
   GLIBC_2.0 {
     # Exception handling support functions from libgcc
     __register_frame; __register_frame_table; __deregister_frame;
-    __register_frame_info; __deregister_frame_info; __frame_state_for;
-    __register_frame_info_table;
+    __frame_state_for; __register_frame_info_table;
   }
   GLIBC_2.2 {
     # functions used in other libraries
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/Versions b/sysdeps/unix/sysv/linux/sparc/sparc64/Versions
index 6534950..cfcc15b 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/Versions
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/Versions
@@ -2,8 +2,7 @@ libc {
   GLIBC_2.0 {
     # Exception handling support functions from libgcc
     __register_frame; __register_frame_table; __deregister_frame;
-    __register_frame_info; __deregister_frame_info; __frame_state_for;
-    __register_frame_info_table;
+    __frame_state_for; __register_frame_info_table;
   }
   GLIBC_2.2.2 {
     # w*