From: =?UTF-8?q?=C4=B0smail=20D=C3=B6nmez?= <ism...@i10z.com>
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 <ism...@i10z.com>
Signed-off-by: Johannes Schindelin <johannes.schinde...@gmx.de>
---
config.mak.uname | 2 ++
1 file changed, 2 insertions(+)
diff --git a/config.mak.uname b/config.mak.uname
index b37fa8424c..e7c7d14e5f 100644
--- a/config.mak.uname
+++ b/config.mak.uname
@@ -573,10 +573,12 @@ else
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
--
gitgitgadget
