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| author | Austin Clements <[email protected]> | 2011-06-24 14:20:51 -0400 |
|---|---|---|
| committer | Austin Clements <[email protected]> | 2011-06-24 14:22:19 -0400 |
| commit | 97657d703f7a92a088b400980c17249f34640a5e (patch) | |
| tree | 0fe6e03281459be6efd8dfa007e05c2ddf241790 | |
| parent | 96b7da5f03e8fd1722cb66ef3cb7fcc02d703860 (diff) | |
| download | xv6-labs-97657d703f7a92a088b400980c17249f34640a5e.tar.gz xv6-labs-97657d703f7a92a088b400980c17249f34640a5e.tar.bz2 xv6-labs-97657d703f7a92a088b400980c17249f34640a5e.zip | |
Add -fno-omit-frame-pointer to compile flags.
At some point between gcc 4.4 and 4.6, omitting the frame pointer
became default if any -O is specified. getcallerpcs relies on the
frame pointer, so bring it back.
| -rw-r--r-- | Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -71,7 +71,7 @@ AS = $(TOOLPREFIX)gas LD = $(TOOLPREFIX)ld OBJCOPY = $(TOOLPREFIX)objcopy OBJDUMP = $(TOOLPREFIX)objdump -CFLAGS = -fno-pic -static -fno-builtin -fno-strict-aliasing -O2 -Wall -MD -ggdb -m32 -Werror +CFLAGS = -fno-pic -static -fno-builtin -fno-strict-aliasing -O2 -Wall -MD -ggdb -m32 -Werror -fno-omit-frame-pointer CFLAGS += $(shell $(CC) -fno-stack-protector -E -x c /dev/null >/dev/null 2>&1 && echo -fno-stack-protector) ASFLAGS = -m32 -gdwarf-2 # FreeBSD ld wants ``elf_i386_fbsd'' |