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2010-07-10 Yao Qi <yao@codesourcery.com>
Merge from Sourcery G++ 4.4:
2009-05-28 Julian Brown <julian@codesourcery.com>
Merged from Sourcery G++ 4.3:
libgcc/
* config.host (arm*-*-linux*, arm*-*-uclinux*, arm*-*-eabi*)
(arm*-*-symbianelf): Add arm/t-divmod-ef to tmake_file.
* Makefile.in (LIB2_DIVMOD_EXCEPTION_FLAGS): Set to previous
default if not set by a target-specific Makefile fragment.
(lib2-divmod-o, lib2-divmod-s-o): Use above.
* config/arm/t-divmod-ef: New.
2010-07-09 Sandra Loosemore <sandra@codesourcery.com>
Merge from Sourcery G++ 4.4:
=== modified file 'libgcc/Makefile.in'
--- old/libgcc/Makefile.in 2010-03-30 12:08:52 +0000
+++ new/libgcc/Makefile.in 2010-07-30 12:21:02 +0000
@@ -400,18 +400,24 @@
endif
endif
+ifeq ($(LIB2_DIVMOD_EXCEPTION_FLAGS),)
+# Provide default flags for compiling divmod functions, if they haven't been
+# set already by a target-specific Makefile fragment.
+LIB2_DIVMOD_EXCEPTION_FLAGS := -fexceptions -fnon-call-exceptions
+endif
+
# Build LIB2_DIVMOD_FUNCS.
lib2-divmod-o = $(patsubst %,%$(objext),$(LIB2_DIVMOD_FUNCS))
$(lib2-divmod-o): %$(objext): $(gcc_srcdir)/libgcc2.c
$(gcc_compile) -DL$* -c $(gcc_srcdir)/libgcc2.c \
- -fexceptions -fnon-call-exceptions $(vis_hide)
+ $(LIB2_DIVMOD_EXCEPTION_FLAGS) $(vis_hide)
libgcc-objects += $(lib2-divmod-o)
ifeq ($(enable_shared),yes)
lib2-divmod-s-o = $(patsubst %,%_s$(objext),$(LIB2_DIVMOD_FUNCS))
$(lib2-divmod-s-o): %_s$(objext): $(gcc_srcdir)/libgcc2.c
$(gcc_s_compile) -DL$* -c $(gcc_srcdir)/libgcc2.c \
- -fexceptions -fnon-call-exceptions
+ $(LIB2_DIVMOD_EXCEPTION_FLAGS)
libgcc-s-objects += $(lib2-divmod-s-o)
endif
=== modified file 'libgcc/config.host'
--- old/libgcc/config.host 2010-04-02 02:02:18 +0000
+++ new/libgcc/config.host 2010-07-30 12:21:02 +0000
@@ -208,12 +208,15 @@
arm*-*-netbsd*)
;;
arm*-*-linux*) # ARM GNU/Linux with ELF
+ tmake_file="${tmake_file} arm/t-divmod-ef"
;;
arm*-*-uclinux*) # ARM ucLinux
+ tmake_file="${tmake_file} arm/t-divmod-ef"
;;
arm*-*-ecos-elf)
;;
arm*-*-eabi* | arm*-*-symbianelf* )
+ tmake_file="${tmake_file} arm/t-divmod-ef"
;;
arm*-*-rtems*)
;;
=== added directory 'libgcc/config/arm'
=== added file 'libgcc/config/arm/t-divmod-ef'
--- old/libgcc/config/arm/t-divmod-ef 1970-01-01 00:00:00 +0000
+++ new/libgcc/config/arm/t-divmod-ef 2010-07-30 12:21:02 +0000
@@ -0,0 +1,4 @@
+# On ARM, specifying -fnon-call-exceptions will needlessly pull in
+# the unwinder in simple programs which use 64-bit division. Omitting
+# the option is safe.
+LIB2_DIVMOD_EXCEPTION_FLAGS := -fexceptions
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