diff options
| -rw-r--r-- | ChangeLog | 12 | ||||
| -rw-r--r-- | Makeconfig | 17 | ||||
| -rw-r--r-- | Makerules | 4 | ||||
| -rwxr-xr-x | configure | 59 | ||||
| -rw-r--r-- | configure.in | 18 |
5 files changed, 44 insertions, 66 deletions
@@ -1,3 +1,15 @@ +2004-09-08 H.J. Lu <hongjiu.lu@intel.com> + + * Makeconfig (libunwind): New. + (libgcc_eh): Add $(libunwind). + (gnulib): Always set to -lgcc $(libgcc_eh). + (static-gnulib): Always set to -lgcc -lgcc_eh $(libunwind). + (libc.so-gnulib): New. + * Makerules (LDLIBS-c.so): Use $(libc.so-gnulib) instead of + $(static-gnulib). + * configure.in (libc_cv_cc_with_libunwind): Set to yes if gcc + uses -lunwind for static binaries. + 22004-06-05 Joseph S. Myers <jsm@polyomino.org.uk> * malloc/Makefile (install-bin): Remove memusage. diff --git a/Makeconfig b/Makeconfig index 3368b51e51..d267e5af21 100644 --- a/Makeconfig +++ b/Makeconfig @@ -508,18 +508,19 @@ link-libc-bounded = $(common-objpfx)libc_b.a $(gnulib) $(common-objpfx)libc_b.a link-extra-libs-bounded = $(foreach lib,$(LDLIBS-$(@F:%-bp=%)),$(common-objpfx)$(lib)_b.a) ifndef gnulib -ifneq ($(have-as-needed),yes) - libgcc_eh := -lgcc_eh +ifneq ($(have-cc-with-libunwind),yes) + libunwind = else - libgcc_eh := -Wl,--as-needed -lgcc_s$(libgcc_s_suffix) -Wl,--no-as-needed + libunwind = -lunwind endif -ifneq ($(have-cc-with-libunwind),yes) - gnulib := -lgcc $(libgcc_eh) - static-gnulib := -lgcc -lgcc_eh +ifneq ($(have-as-needed),yes) + libgcc_eh := -lgcc_eh $(libunwind) else - gnulib := -lgcc $(libgcc_eh) -lunwind - static-gnulib := -lgcc -lgcc_eh -lunwind + libgcc_eh := -Wl,--as-needed -lgcc_s$(libgcc_s_suffix) $(libunwind) -Wl,--no-as-needed endif +gnulib := -lgcc $(libgcc_eh) +static-gnulib := -lgcc -lgcc_eh $(libunwind) +libc.so-gnulib := -lgcc endif ifeq ($(elf),yes) +preinit = $(addprefix $(csu-objpfx),crti.o) @@ -581,8 +581,8 @@ build-shlib-objlist = $(build-module-helper-objlist) \ # Also omits crti.o and crtn.o, which we do not want # since we define our own `.init' section specially. LDFLAGS-c.so = -nostdlib -nostartfiles -# But we still want to link libc.so against $(static-gnulib). -LDLIBS-c.so += $(static-gnulib) +# But we still want to link libc.so against $(libc.so-gnulib). +LDLIBS-c.so += $(libc.so-gnulib) # Give libc.so an entry point and make it directly runnable itself. LDFLAGS-c.so += -e __libc_main # If lazy relocation is disabled add the -z now flag. @@ -5399,56 +5399,17 @@ echo $ECHO_N "checking for libunwind-support in compiler... $ECHO_C" >&6 if test "${libc_cv_cc_with_libunwind+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else - cat >conftest.$ac_ext <<_ACEOF -/* confdefs.h. */ -_ACEOF -cat confdefs.h >>conftest.$ac_ext -cat >>conftest.$ac_ext <<_ACEOF -/* end confdefs.h. */ -#include <libunwind.h> -int -main () -{ - unw_context_t uc; - unw_cursor_t c; - unw_getcontext (&uc); - unw_init_local (&c, &uc) - ; - return 0; -} -_ACEOF -rm -f conftest.$ac_objext conftest$ac_exeext -if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5 - (eval $ac_link) 2>conftest.er1 - ac_status=$? - grep -v '^ *+' conftest.er1 >conftest.err - rm -f conftest.er1 - cat conftest.err >&5 - echo "$as_me:$LINENO: \$? = $ac_status" >&5 - (exit $ac_status); } && - { ac_try='test -z "$ac_c_werror_flag" - || test ! -s conftest.err' - { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 - (eval $ac_try) 2>&5 - ac_status=$? - echo "$as_me:$LINENO: \$? = $ac_status" >&5 - (exit $ac_status); }; } && - { ac_try='test -s conftest$ac_exeext' - { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5 - (eval $ac_try) 2>&5 - ac_status=$? - echo "$as_me:$LINENO: \$? = $ac_status" >&5 - (exit $ac_status); }; }; then - libc_cv_cc_with_libunwind=yes -else - echo "$as_me: failed program was:" >&5 -sed 's/^/| /' conftest.$ac_ext >&5 - -libc_cv_cc_with_libunwind=no -fi -rm -f conftest.err conftest.$ac_objext \ - conftest$ac_exeext conftest.$ac_ext + cat > conftest.c <<EOF +int main (void) { return 0; } +EOF + if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -static -o conftest \ + conftest.c -v 2>&1 >/dev/null | grep -q " -lunwind "; then + libc_cv_cc_with_libunwind=yes + else + libc_cv_cc_with_libunwind=no + fi + rm -f conftest* fi echo "$as_me:$LINENO: result: $libc_cv_cc_with_libunwind" >&5 echo "${ECHO_T}$libc_cv_cc_with_libunwind" >&6 diff --git a/configure.in b/configure.in index 9b8a1eb26d..559bee0173 100644 --- a/configure.in +++ b/configure.in @@ -1260,13 +1260,17 @@ EOF fi AC_CACHE_CHECK(for libunwind-support in compiler, - libc_cv_cc_with_libunwind, [dnl - AC_TRY_LINK([#include <libunwind.h>], [ - unw_context_t uc; - unw_cursor_t c; - unw_getcontext (&uc); - unw_init_local (&c, &uc)], - libc_cv_cc_with_libunwind=yes, libc_cv_cc_with_libunwind=no)]) + libc_cv_cc_with_libunwind, [ + cat > conftest.c <<EOF +int main (void) { return 0; } +EOF + if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -static -o conftest \ + conftest.c -v 2>&1 >/dev/null | grep -q " -lunwind "; then + libc_cv_cc_with_libunwind=yes + else + libc_cv_cc_with_libunwind=no + fi + rm -f conftest*]) AC_SUBST(libc_cv_cc_with_libunwind) if test $libc_cv_cc_with_libunwind = yes; then AC_DEFINE(HAVE_CC_WITH_LIBUNWIND) |