This is the first step for enabling ASLR (Address Space Layout
Randomization) support. We want to enable ASLR for better protection
against exploiting security holes in Git: it makes it harder to attack
software by making code addresses unpredictable.
The problem fixed by this commit is that `ld.exe` seems to be stripping
relocations which in turn will break ASLR support. We just make sure
it's not stripping the main executable entry.
Signed-off-by: İsmail Dönmez <ismail@i10z.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
ifeq (MINGW32,$(MSYSTEM))
prefix = /mingw32
HOST_CPU = i686
+ BASIC_LDFLAGS += -Wl,--pic-executable,-e,_mainCRTStartup
endif
ifeq (MINGW64,$(MSYSTEM))
prefix = /mingw64
HOST_CPU = x86_64
+ BASIC_LDFLAGS += -Wl,--pic-executable,-e,mainCRTStartup
else
COMPAT_CFLAGS += -D_USE_32BIT_TIME_T
BASIC_LDFLAGS += -Wl,--large-address-aware