diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rwxr-xr-x | configure | 55 | ||||
| -rw-r--r-- | sysdeps/powerpc/bits/setjmp.h | 5 |
3 files changed, 56 insertions, 9 deletions
diff --git a/ChangeLog b/ChangeLog index 1776d883c2..be527caa94 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +1998-05-07 Ulrich Drepper <drepper@cygnus.com> + + * sysdeps/powerpc/bits/setjmp.h (_JMPBUF_UNWINDS): Define. + Patch by Matt McLean <keys@brio.yikes.com>. + 1997-05-07 13:26 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * Makerules (lib): Put back dependency on lib-noranlib. diff --git a/configure b/configure index df9fef82aa..3ef6e6ba82 100755 --- a/configure +++ b/configure @@ -2578,13 +2578,50 @@ EOF fi fi +if test "$host_cpu" = powerpc ; then +# Check for a bug present in at least versions 2.8.x of GCC +# and versions 1.0.x of EGCS. +echo $ac_n "checking whether clobbering cr0 causes problems""... $ac_c" 1>&6 +echo "configure:2586: checking whether clobbering cr0 causes problems" >&5 +if eval "test \"`echo '$''{'libc_cv_c_asmcr0_bug'+set}'`\" = set"; then + echo $ac_n "(cached) $ac_c" 1>&6 +else + cat > conftest.$ac_ext <<EOF +#line 2591 "configure" +#include "confdefs.h" +int tester(int x) { asm ("" : : : "cc"); return x & 123; } +int main() { + +; return 0; } +EOF +if { (eval echo configure:2598: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then + rm -rf conftest* + libc_cv_c_asmcr0_bug='no' +else + echo "configure: failed program was:" >&5 + cat conftest.$ac_ext >&5 + rm -rf conftest* + libc_cv_c_asmcr0_bug='yes' +fi +rm -f conftest* +fi + +echo "$ac_t""$libc_cv_c_asmcr0_bug" 1>&6 +if test "$libc_cv_c_asmcr0_bug" != 'no'; then + cat >> confdefs.h <<\EOF +#define BROKEN_PPC_ASM_CR0 1 +EOF + +fi +fi + echo $ac_n "checking for DWARF2 unwind info support""... $ac_c" 1>&6 -echo "configure:2583: checking for DWARF2 unwind info support" >&5 +echo "configure:2620: checking for DWARF2 unwind info support" >&5 if eval "test \"`echo '$''{'libc_cv_gcc_dwarf2_unwind_info'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else cat > conftest.c <<EOF -#line 2588 "configure" +#line 2625 "configure" static char __EH_FRAME_BEGIN__; _start () { @@ -2611,7 +2648,7 @@ __bzero () {} EOF if { ac_try='${CC-cc} $CFLAGS -DCHECK__register_frame_info -nostdlib -nostartfiles - -o conftest conftest.c -lgcc >&5'; { (eval echo configure:2615: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then + -o conftest conftest.c -lgcc >&5'; { (eval echo configure:2652: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then libc_cv_gcc_dwarf2_unwind_info=static else libc_cv_gcc_dwarf2_unwind_info=no @@ -2619,7 +2656,7 @@ fi if test $libc_cv_gcc_dwarf2_unwind_info = no; then if { ac_try='${CC-cc} $CFLAGS -DCHECK__register_frame -nostdlib -nostartfiles - -o conftest conftest.c -lgcc >&5'; { (eval echo configure:2623: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then + -o conftest conftest.c -lgcc >&5'; { (eval echo configure:2660: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then libc_cv_gcc_dwarf2_unwind_info=yes else libc_cv_gcc_dwarf2_unwind_info=no @@ -2693,7 +2730,7 @@ if test "$uname" = "sysdeps/generic"; then fi echo $ac_n "checking OS release for uname""... $ac_c" 1>&6 -echo "configure:2697: checking OS release for uname" >&5 +echo "configure:2734: checking OS release for uname" >&5 if eval "test \"`echo '$''{'libc_cv_uname_release'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else @@ -2715,7 +2752,7 @@ echo "$ac_t""$libc_cv_uname_release" 1>&6 uname_release="$libc_cv_uname_release" echo $ac_n "checking OS version for uname""... $ac_c" 1>&6 -echo "configure:2719: checking OS version for uname" >&5 +echo "configure:2756: checking OS version for uname" >&5 if eval "test \"`echo '$''{'libc_cv_uname_version'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else @@ -2737,7 +2774,7 @@ else fi echo $ac_n "checking stdio selection""... $ac_c" 1>&6 -echo "configure:2741: checking stdio selection" >&5 +echo "configure:2778: checking stdio selection" >&5 case $stdio in libio) cat >> confdefs.h <<\EOF @@ -2749,7 +2786,7 @@ esac echo "$ac_t""$stdio" 1>&6 echo $ac_n "checking ldap selection""... $ac_c" 1>&6 -echo "configure:2753: checking ldap selection" >&5 +echo "configure:2790: checking ldap selection" >&5 case $add_ons in *ldap*) @@ -2800,7 +2837,7 @@ if test $shared = default; then fi echo $ac_n "checking whether -fPIC is default""... $ac_c" 1>&6 -echo "configure:2804: checking whether -fPIC is default" >&5 +echo "configure:2841: checking whether -fPIC is default" >&5 if eval "test \"`echo '$''{'pic_default'+set}'`\" = set"; then echo $ac_n "(cached) $ac_c" 1>&6 else diff --git a/sysdeps/powerpc/bits/setjmp.h b/sysdeps/powerpc/bits/setjmp.h index 65db364555..100f1d1a90 100644 --- a/sysdeps/powerpc/bits/setjmp.h +++ b/sysdeps/powerpc/bits/setjmp.h @@ -39,3 +39,8 @@ #ifndef _ASM typedef long int __jmp_buf[58]; #endif + +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ +#define _JMPBUF_UNWINDS(jmpbuf, address) \ + ((void *) (address) < (void *) (jmpbuf)[JB_GPR1]) |