+2019-12-11 Jozef Lawrynowicz <jozef.l@mittosystems.com>
+
+ * config-ml.in (msp430-*-*): Support --disable-no-exceptions configure
+ flag.
+
2019-12-10 Lewis Hyatt <lhyatt@gmail.com>
- * MAINTAINERS (Write After Approval): Add myself.
+ * MAINTAINERS (Write After Approval): Add myself.
2019-11-27 Tobias Burnus <tobias@codesourcery.com>
done
fi
;;
+msp430-*-*)
+ if [ x$enable_no_exceptions = xno ]
+ then
+ old_multidirs="${multidirs}"
+ multidirs=""
+ for x in ${old_multidirs}; do
+ case "$x" in
+ *no-exceptions* ) : ;;
+ *) multidirs="${multidirs} ${x}" ;;
+ esac
+ done
+ fi
+ ;;
powerpc*-*-* | rs6000*-*-*)
if [ x$enable_aix64 = xno ]
then
+2019-12-11 Jozef Lawrynowicz <jozef.l@mittosystems.com>
+
+ * config/msp430/msp430.h (STARTFILE_SPEC) [!fexceptions]: Use
+ crtbegin_no_eh.o if building for the C language.
+ [fno-exceptions]: Use crtbegin_no_eh.o if building for any language
+ except C.
+ (ENDFILE_SPEC) [!fexceptions]: Use crtend_no_eh.o if building for
+ the C language.
+ [fno-exceptions]: Use crtend_no_eh.o if building for any language
+ except C.
+ * config/msp430/t-msp430: Add -fno-exceptions multilib.
+ * doc/install.texi: Document --disable-no-exceptions multilib configure
+ option.
+ * doc/sourcebuild.texi: Document exceptions_enabled effective target.
+
2019-12-11 David Malcolm <dmalcolm@redhat.com>
* pretty-print.c (pretty_printer::pretty_printer): New copy-ctor.
} \
while (0)
+/* For the "c" language where exceptions are implicitly disabled, use
+ crt*_no_eh.o unless -fexceptions is passed. For other languages, only use
+ crt*_no_eh.o if -fno-exceptions is explicitly passed. */
#undef STARTFILE_SPEC
#define STARTFILE_SPEC "%{pg:gcrt0.o%s}" \
- "%{!pg:%{minrt:crt0-minrt.o%s}%{!minrt:crt0.o%s}} %{!minrt:crtbegin.o%s}"
+ "%{!pg:%{minrt:crt0-minrt.o%s}%{!minrt:crt0.o%s}} " \
+ "%{!minrt:%{,c:%{!fexceptions:crtbegin_no_eh.o%s; :crtbegin.o%s}; " \
+ ":%{fno-exceptions:crtbegin_no_eh.o%s; :crtbegin.o%s}}}"
/* -lgcc is included because crtend.o needs __mspabi_func_epilog_1. */
#undef ENDFILE_SPEC
-#define ENDFILE_SPEC "%{!minrt:crtend.o%s} " \
+#define ENDFILE_SPEC \
+ "%{!minrt:%{,c:%{!fexceptions:crtend_no_eh.o%s; :crtend.o%s}; " \
+ ":%{fno-exceptions:crtend_no_eh.o%s; :crtend.o%s}}} " \
"%{minrt:%:if-exists(crtn-minrt.o%s)}%{!minrt:%:if-exists(crtn.o%s)} -lgcc"
#define ASM_SPEC "-mP " /* Enable polymorphic instructions. */ \
# Enable multilibs:
-MULTILIB_OPTIONS = mcpu=msp430 mlarge mdata-region=none
-MULTILIB_DIRNAMES = 430 large full-memory-range
+MULTILIB_OPTIONS = mcpu=msp430 mlarge mdata-region=none fno-exceptions
+MULTILIB_DIRNAMES = 430 large full-memory-range no-exceptions
# Match -mcpu=430
MULTILIB_MATCHES = mcpu?msp430=mcpu?430
# hard-coded data here, because DRIVER_SELF_SPECS will place the correct
# -mcpu option for a given mcu onto the command line.
-MULTILIB_REQUIRED = mcpu=msp430
-MULTILIB_REQUIRED += mlarge
+MULTILIB_REQUIRED = mcpu=msp430 mlarge
+MULTILIB_REQUIRED += fno-exceptions mcpu=msp430/fno-exceptions mlarge/fno-exceptions
MULTILIB_REQUIRED += mlarge/mdata-region=none
+MULTILIB_REQUIRED += mlarge/mdata-region=none/fno-exceptions
MULTILIB_EXTRA_OPTS =
@item mips*-*-*
single-float, biendian, softfloat.
+@item msp430-*-*
+no-exceptions
+
@item powerpc*-*-*, rs6000*-*-*
aix64, pthread, softfloat, powercpu, powerpccpu, powerpcos, biendian,
sysv, aix.
@item exceptions
Target supports exceptions.
+@item exceptions_enabled
+Target supports exceptions and they are enabled in the current
+testing configuration.
+
@item fgraphite
Target supports Graphite optimizations.
+2019-12-11 Jozef Lawrynowicz <jozef.l@mittosystems.com>
+
+ * lib/gcc-dg.exp: Add dg-prune messages for when exception handling is
+ disabled.
+ * lib/target-supports.exp (check_effective_target_exceptions_enabled):
+ New.
+
2019-12-11 Jakub Jelinek <jakub@redhat.com>
PR c++/92869
return "::unsupported::large return values"
}
+ # If exceptions are disabled, mark tests expecting exceptions to be enabled
+ # as unsupported.
+ if { ![check_effective_target_exceptions_enabled] } {
+ if [regexp "(^|\n)\[^\n\]*: error: exception handling disabled" $text] {
+ return "::unsupported::exception handling disabled"
+ }
+
+ if [regexp "(^|\n)\[^\n\]*: error: #error .__cpp_exceptions." $text] {
+ return "::unsupported::exception handling disabled"
+ }
+ }
+
return $text
}
return 1
}
+# Used to check if the testing configuration supports exceptions.
+# Returns 0 if exceptions are unsupported or disabled (e.g. by passing
+# -fno-exceptions). Returns 1 if exceptions are enabled.
+proc check_effective_target_exceptions_enabled {} {
+ return [check_cached_effective_target exceptions_enabled {
+ if { [check_effective_target_exceptions] } {
+ return [check_no_compiler_messages exceptions_enabled assembly {
+ void foo (void)
+ {
+ throw 1;
+ }
+ }]
+ } else {
+ # If exceptions aren't supported, then they're not enabled.
+ return 0
+ }
+ }]
+}
proc check_effective_target_tiny {} {
return [check_cached_effective_target tiny {
+2019-12-11 Jozef Lawrynowicz <jozef.l@mittosystems.com>
+
+ * config.host (msp430*-*-elf): Add crt{begin,end}_no_eh.o to
+ "extra_parts".
+ * config/msp430/t-msp430: Add rules to build crt{begin,end}_no_eh.o.
+
2019-12-11 Jozef Lawrynowicz <jozef.l@mittosystems.com>
* crtstuff.c: Declare __dso_handle only if DEFAULT_USE_CXA_ATEXIT is
;;
msp430*-*-elf)
tmake_file="$tm_file t-crtstuff t-fdpbit msp430/t-msp430"
- extra_parts="$extra_parts libmul_none.a libmul_16.a libmul_32.a libmul_f5.a"
+ extra_parts="$extra_parts crtbegin_no_eh.o crtend_no_eh.o"
+ extra_parts="$extra_parts libmul_none.a libmul_16.a libmul_32.a libmul_f5.a"
;;
nds32*-linux*)
# Basic makefile fragment and extra_parts for crt stuff.
HOST_LIBGCC2_CFLAGS += -Os -ffunction-sections -fdata-sections -mhwmult=none
+crtbegin_no_eh.o: $(srcdir)/crtstuff.c
+ $(crt_compile) -U__LIBGCC_EH_FRAME_SECTION_NAME__ -c $< -DCRT_BEGIN
+
+crtend_no_eh.o: $(srcdir)/crtstuff.c
+ $(crt_compile) -U__LIBGCC_EH_FRAME_SECTION_NAME__ -c $< -DCRT_END
+
mpy.o: $(srcdir)/config/msp430/mpy.c
$(gcc_compile) $< -c
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