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| author | Michael Brown | 2007-12-15 20:37:21 +0100 |
|---|---|---|
| committer | Michael Brown | 2007-12-15 20:37:21 +0100 |
| commit | 5172d7b26624fd2219e6a68eee6237c899f8610a (patch) | |
| tree | 6a6026772ff1d818d223684fb63e28229d7f9976 /src/Makefile.housekeeping | |
| parent | Overwrite the device descriptor's IRQ number with whatever the legacy (diff) | |
| download | ipxe-5172d7b26624fd2219e6a68eee6237c899f8610a.tar.gz ipxe-5172d7b26624fd2219e6a68eee6237c899f8610a.tar.xz ipxe-5172d7b26624fd2219e6a68eee6237c899f8610a.zip | |
Autodetect whether or not we need to be using -fno-stack-protector.
Diffstat (limited to 'src/Makefile.housekeeping')
| -rw-r--r-- | src/Makefile.housekeeping | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/Makefile.housekeeping b/src/Makefile.housekeeping index 3694402b..1e97ee62 100644 --- a/src/Makefile.housekeeping +++ b/src/Makefile.housekeeping @@ -102,6 +102,14 @@ CFLAGS += $(OLDGAS) oldgas : @$(ECHO) $(oldgas) +# Some widespread patched versions of gcc include -fstack-protector by +# default, even when -ffreestanding is specified. We therefore need +# to disable -fstack-protector if the compiler supports it. +# +SP_TEST = $(CC) -fno-stack-protector -x c -E - < /dev/null >/dev/null 2>&1 +SP_FLAGS := $(shell $(SP_TEST) && $(ECHO) '-fno-stack-protector') +CFLAGS += $(SP_FLAGS) + # compiler.h is needed for our linking and debugging system # CFLAGS += -include compiler.h |