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| author | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2015-12-14 15:53:21 -0800 |
|---|---|---|
| committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2015-12-16 00:31:23 +0100 |
| commit | 490006bf7dae0b4df1dfe41e280cb7b40d060db8 (patch) | |
| tree | a4dbae6c6205b4d48dece3ffcc8bf84b67cf6063 /src/soc | |
| parent | 07a1b281a864e8c2a17e29767a7abf495587b325 (diff) | |
| download | coreboot-490006bf7dae0b4df1dfe41e280cb7b40d060db8.tar.xz | |
intel/skylake: Work around ROMCC optimization bug
On Skylake systems, the bootblock fails to compile with the following
error message:
bootblock_simple.c:6.1:
0x13930e0 copy Internal compiler error: non dominated rhs use point
0x13a3f70?
Aborted (core dumped)
The option -fno-simplify-phi works around the issue, but will cause the
code to use more registers, hence we also need to enable -mcpu=p4 (see
intel/truxton mainboard for another example of where this has been done
in the past)
Change-Id: Iea1a1ba18d76c7323bb626c5f4b0032e4ee04a86
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: https://review.coreboot.org/12719
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/skylake/Makefile.inc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/Makefile.inc b/src/soc/intel/skylake/Makefile.inc index e824f2a485..9dd4cac8c3 100644 --- a/src/soc/intel/skylake/Makefile.inc +++ b/src/soc/intel/skylake/Makefile.inc @@ -78,4 +78,6 @@ CPPFLAGS_common += -I$(src)/vendorcode/intel/fsp/fsp1_1/skylake # Currently used for microcode path. CPPFLAGS_common += -I3rdparty/blobs/mainboard/$(CONFIG_MAINBOARD_DIR) +ROMCCFLAGS := -mcpu=p4 -fno-simplify-phi -O2 + endif |