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glibc/sysdeps/i386/Makefile
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# The mpn functions need a #define for asm syntax flavor. | |
# Every i386 port in use uses gas syntax (I think). | |
asm-CPPFLAGS += -DGAS_SYNTAX | |
# The i386 `long double' is a distinct type we support. | |
long-double-fcts = yes | |
ifeq ($(subdir),csu) | |
# On i686 we must avoid generating the trampoline functions generated | |
# to get the GOT pointer. | |
CFLAGS-initfini.s += -march=i386 $(cc-mtune)=i386 | |
endif | |
ifeq ($(subdir),gmon) | |
sysdep_routines += i386-mcount | |
endif | |
ifeq ($(subdir),elf) | |
CFLAGS-rtld.c += -Wno-uninitialized -Wno-unused | |
CFLAGS-dl-load.c += -Wno-unused | |
CFLAGS-dl-reloc.c += -Wno-unused | |
endif | |
ifeq ($(subdir),debug) | |
CFLAGS-backtrace.c += -fexceptions | |
endif | |
# Most of the glibc routines don't ever call user defined callbacks | |
# nor use any FPU or SSE* and as such don't need bigger %esp alignment | |
# than 4 bytes. | |
# Lots of routines in math will use FPU, so make math subdir an exception | |
# here. | |
ifeq ($(subdir),math) | |
sysdep-CFLAGS += -mpreferred-stack-boundary=4 | |
else | |
ifeq ($(subdir),csu) | |
sysdep-CFLAGS += -mpreferred-stack-boundary=4 | |
else | |
sysdep-CFLAGS += -mpreferred-stack-boundary=2 | |
# Likewise, any function which calls user callbacks | |
uses-callbacks += -mpreferred-stack-boundary=4 | |
# Likewise, any stack alignment tests | |
stack-align-test-flags += -malign-double -mpreferred-stack-boundary=4 | |
endif | |
endif | |
# And a couple of other routines | |
ifeq ($(subdir),stdlib) | |
CFLAGS-exit.c += -mpreferred-stack-boundary=4 | |
endif | |
ifeq ($(subdir),elf) | |
CFLAGS-dl-init.c += -mpreferred-stack-boundary=4 | |
CFLAGS-dl-fini.c += -mpreferred-stack-boundary=4 | |
CFLAGS-dl-open.c += -mpreferred-stack-boundary=4 | |
CFLAGS-dl-close.c += -mpreferred-stack-boundary=4 | |
CFLAGS-dl-error.c += -mpreferred-stack-boundary=4 | |
endif | |
ifeq ($(subdir),dlfcn) | |
CFLAGS-dlopen.c += -mpreferred-stack-boundary=4 | |
CFLAGS-dlopenold.c += -mpreferred-stack-boundary=4 | |
CFLAGS-dlclose.c += -mpreferred-stack-boundary=4 | |
CFLAGS-dlerror.c += -mpreferred-stack-boundary=4 | |
endif | |
ifneq (,$(filter -mno-tls-direct-seg-refs,$(CFLAGS))) | |
defines += -DNO_TLS_DIRECT_SEG_REFS | |
endif |