diff options
Diffstat (limited to 'sysdeps/x86/Makefile')
| -rw-r--r-- | sysdeps/x86/Makefile | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/sysdeps/x86/Makefile b/sysdeps/x86/Makefile index 65292f4..e9b2d0b 100644 --- a/sysdeps/x86/Makefile +++ b/sysdeps/x86/Makefile @@ -13,3 +13,45 @@ ifeq ($(subdir),setjmp) gen-as-const-headers += jmp_buf-ssp.sym sysdep_routines += __longjmp_cancel endif + +ifeq ($(enable-cet),yes) +ifeq ($(subdir),elf) +sysdep-dl-routines += dl-cet +endif + +# Add -fcf-protection to CFLAGS when CET is enabled. +CFLAGS-.o += -fcf-protection +CFLAGS-.os += -fcf-protection +CFLAGS-.op += -fcf-protection +CFLAGS-.oS += -fcf-protection + +# Compile assembly codes with <cet.h> when CET is enabled. +asm-CPPFLAGS += -fcf-protection -include cet.h + +ifeq ($(subdir),elf) +ifeq (yes,$(build-shared)) +tests-special += $(objpfx)check-cet.out +endif + +# FIXME: Can't use all-built-dso in elf/Makefile since this file is +# processed before elf/Makefile. Duplicate it here. +cet-built-dso := $(common-objpfx)elf/ld.so $(common-objpfx)libc.so \ + $(filter-out $(common-objpfx)linkobj/libc.so, \ + $(sort $(wildcard $(addprefix $(common-objpfx), \ + */lib*.so \ + iconvdata/*.so)))) + +$(cet-built-dso:=.note): %.note: % + @rm -f $@T + LC_ALL=C $(READELF) -n $< > $@T + test -s $@T + mv -f $@T $@ +common-generated += $(cet-built-dso:$(common-objpfx)%=%.note) + +$(objpfx)check-cet.out: $(..)sysdeps/x86/check-cet.awk \ + $(cet-built-dso:=.note) + LC_ALL=C $(AWK) -f $^ > $@; \ + $(evaluate-test) +generated += check-cet.out +endif +endif |