fluencelabs/musl
1
0
Fork 0
mirror of https://github.com/fluencelabs/musl synced 2025-04-25 15:22:15 +00:00
Code Issues Projects Releases Wiki Activity

work around gcc 4.8's generation of self-referential mem* functions at -O3

Browse Source
This commit is contained in:
Rich Felker 2013-08-01 17:12:23 -04:00
parent 5db951ef80
commit 4a1f55e92f
2 changed files with 13 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Makefile
View File

@ -87,6 +87,9 @@ crt/Scrt1.o: CFLAGS += -fPIC
OPTIMIZE_SRCS = $(wildcard $(OPTIMIZE_GLOBS:%=src/%)) OPTIMIZE_SRCS = $(wildcard $(OPTIMIZE_GLOBS:%=src/%))
$(OPTIMIZE_SRCS:%.c=%.o) $(OPTIMIZE_SRCS:%.c=%.lo): CFLAGS += -O3 $(OPTIMIZE_SRCS:%.c=%.o) $(OPTIMIZE_SRCS:%.c=%.lo): CFLAGS += -O3
MEMOPS_SRCS = src/string/memcpy.c src/string/memmove.c src/string/memcmp.c src/string/memset.c
$(MEMOPS_SRCS:%.c=%.o) $(MEMOPS_SRCS:%.c=%.lo): CFLAGS += $(CFLAGS_MEMOPS)
%.o: $(ARCH)/%.s %.o: $(ARCH)/%.s
$(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $< $(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $<

10
configure vendored
View File

@ -104,6 +104,7 @@ fi
CFLAGS_C99FSE= CFLAGS_C99FSE=
CFLAGS_AUTO= CFLAGS_AUTO=
CFLAGS_MEMOPS=
LDFLAGS_AUTO= LDFLAGS_AUTO=
OPTIMIZE_GLOBS= OPTIMIZE_GLOBS=
prefix=/usr/local/musl prefix=/usr/local/musl
@ -236,6 +237,14 @@ tryflag CFLAGS_C99FSE -fexcess-precision=standard \
|| { test "$ARCH" = i386 && tryflag CFLAGS_C99FSE -ffloat-store ; } || { test "$ARCH" = i386 && tryflag CFLAGS_C99FSE -ffloat-store ; }
tryflag CFLAGS_C99FSE -frounding-math tryflag CFLAGS_C99FSE -frounding-math
#
# Check for options that may be needed to prevent the compiler from
# generating self-referential versions of memcpy,, memmove, memcmp,
# and memset. Really, we should add a check to determine if this
# option is sufficient, and if not, add a macro to cripple these
# functions with volatile...
#
tryflag CFLAGS_MEMOPS -fno-tree-loop-distribute-patterns
# #
# If debugging is explicitly enabled, don't auto-enable optimizations # If debugging is explicitly enabled, don't auto-enable optimizations
@ -403,6 +412,7 @@ syslibdir = $syslibdir
CC = $CC CC = $CC
CFLAGS= $CFLAGS_AUTO $CFLAGS CFLAGS= $CFLAGS_AUTO $CFLAGS
CFLAGS_C99FSE = $CFLAGS_C99FSE CFLAGS_C99FSE = $CFLAGS_C99FSE
CFLAGS_MEMOPS = $CFLAGS_MEMOPS
CPPFLAGS = $CPPFLAGS CPPFLAGS = $CPPFLAGS
LDFLAGS = $LDFLAGS_AUTO $LDFLAGS LDFLAGS = $LDFLAGS_AUTO $LDFLAGS
CROSS_COMPILE = $CROSS_COMPILE CROSS_COMPILE = $CROSS_COMPILE