@@ -124,7 +124,30 @@ extern GTY(()) int darwin_ms_struct;
"%{fapple-kext|mkernel:-static}", \
"%{shared:-Zdynamiclib} %<shared", \
"%{gsplit-dwarf:%ngsplit-dwarf is not supported on this platform} \
- %<gsplit-dwarf"
+ %<gsplit-dwarf", \
+ DARWIN_PIE_SPEC, \
+ DARWIN_NOPIE_SPEC, \
+ RDYNAMIC
+
+#if LD64_HAS_EXPORT_DYNAMIC
+#define RDYNAMIC "%{rdynamic:-Xlinker -export_dynamic} %<rdynamic"
+#else
+#define RDYNAMIC "%{rdynamic:%nrdynamic is not supported} %<rdynamic"
+#endif
+
+/* FIXME: we should check that the linker supports the -pie and -no_pie.
+ options. */
+#define DARWIN_PIE_SPEC \
+"%{pie|fpie|fPIE: \
+ %{mdynamic-no-pic: \
+ %n'-mdynamic-no-pic' overrides '-pie', '-fpie' or '-fPIE'; \
+ : %:version-compare(>= 10.5 mmacosx-version-min= -Xlinker) \
+ %:version-compare(>= 10.5 mmacosx-version-min= -pie) }} %<pie "
+
+#define DARWIN_NOPIE_SPEC \
+"%{no-pie|fno-pie|fno-PIE: \
+ %:version-compare(>= 10.7 mmacosx-version-min= -Xlinker ) \
+ %:version-compare(>= 10.7 mmacosx-version-min= -no_pie) } %<no-pie "
#define DARWIN_CC1_SPEC \
"%{findirect-virtual-calls: -fapple-kext} %<findirect-virtual-calls " \
@@ -156,6 +179,16 @@ extern GTY(()) int darwin_ms_struct;
#define CPP_SPEC "%{static:%{!dynamic:-D__STATIC__}}%{!static:-D__DYNAMIC__}" \
" %{pthread:-D_REENTRANT}"
+/* This is a fix for PR41260 by passing -no_compact_unwind on darwin10 and
+ later until the assembler, linker and libunwind are able to deal with the
+ output from GCC.
+
+ FIXME: we should check that the linker supports the option.
+*/
+
+#define DARWIN_NOCOMPACT_UNWIND \
+" %:version-compare(>= 10.6 mmacosx-version-min= -no_compact_unwind) "
+
/* This is mostly a clone of the standard LINK_COMMAND_SPEC, plus
precomp, libtool, and fat build additions.
@@ -164,12 +197,6 @@ extern GTY(()) int darwin_ms_struct;
specifying the handling of options understood by generic Unix
linkers, and for positional arguments like libraries. */
-#if LD64_HAS_EXPORT_DYNAMIC
-#define DARWIN_EXPORT_DYNAMIC " %{rdynamic:-export_dynamic}"
-#else
-#define DARWIN_EXPORT_DYNAMIC " %{rdynamic: %nrdynamic is not supported}"
-#endif
-
#define LINK_COMMAND_SPEC_A \
"%{!fdump=*:%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
%(linker)" \
@@ -190,10 +217,11 @@ extern GTY(()) int darwin_ms_struct;
%{%:sanitize(address): -lasan } \
%{%:sanitize(undefined): -lubsan } \
%(link_ssp) \
- " DARWIN_EXPORT_DYNAMIC " %<rdynamic \
%(link_gcc_c_sequence) \
}}}\
- %{!nostdlib:%{!r:%{!nostartfiles:%E}}} %{T*} %{F*} }}}}}}}"
+ %{!nostdlib:%{!r:%{!nostartfiles:%E}}} %{T*} %{F*} "\
+ DARWIN_NOCOMPACT_UNWIND \
+ "}}}}}}}"
#define DSYMUTIL "\ndsymutil"
@@ -230,8 +258,6 @@ extern GTY(()) int darwin_ms_struct;
#define STANDARD_STARTFILE_PREFIX_1 ""
#define STANDARD_STARTFILE_PREFIX_2 ""
-#define DARWIN_PIE_SPEC "%{fpie|pie|fPIE:}"
-
/* Please keep the random linker options in alphabetical order (modulo
'Z' and 'no' prefixes). Note that options taking arguments may appear
multiple times on a command line with different arguments each time,
@@ -295,7 +321,6 @@ extern GTY(()) int darwin_ms_struct;
%:version-compare(< 10.5 mmacosx-version-min= -multiply_defined) \
%:version-compare(< 10.5 mmacosx-version-min= suppress)}} \
%{Zmultiplydefinedunused*:-multiply_defined_unused %*} \
- " DARWIN_PIE_SPEC " \
%{prebind} %{noprebind} %{nofixprebinding} %{prebind_all_twolevel_modules} \
%{read_only_relocs} \
%{sectcreate*} %{sectorder*} %{seg1addr*} %{segprot*} \
@@ -18,17 +18,12 @@ You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
-/* Fix PR41260 by passing -no_compact_unwind on darwin10 and later until
- unwinder in libSystem is fixed to digest new epilog unwinding notes.
+/* Fix PR47558 by linking against libSystem ahead of libgcc_ext. */
- Fix PR47558 by linking against libSystem ahead of libgcc_ext. */
#undef LINK_GCC_C_SEQUENCE_SPEC
#define LINK_GCC_C_SEQUENCE_SPEC \
-"%:version-compare(>= 10.6 mmacosx-version-min= -no_compact_unwind) \
- %{!static:%{!static-libgcc: \
+"%{!static:%{!static-libgcc: \
%:version-compare(>= 10.6 mmacosx-version-min= -lSystem) } } \
- %{fno-pic|fno-PIC|fno-pie|fno-PIE|fapple-kext|mkernel|static|mdynamic-no-pic: \
- %:version-compare(>= 10.7 mmacosx-version-min= -no_pie) } \
%{!nostdlib:%:version-compare(>< 10.6 10.7 mmacosx-version-min= -ld10-uwfef.o)} \
%G %{!nolibc:%L}"
@@ -35,12 +35,6 @@ along with GCC; see the file COPYING3. If not see
/* Tell collect2 to run dsymutil for us as necessary. */
#define COLLECT_RUN_DSYMUTIL 1
-#undef DARWIN_PIE_SPEC
-#define DARWIN_PIE_SPEC \
- "%{fpie|pie|fPIE: \
- %{mdynamic-no-pic: %n'-mdynamic-no-pic' overrides '-pie', '-fpie' or '-fPIE'; \
- :-pie}}"
-
/* Only ask as for debug data if the debug style is stabs (since as doesn't
yet generate dwarf.) */