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| author | Kevin O'Connor <kevin@koconnor.net> | 2011-12-18 10:51:19 -0500 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2011-12-18 10:57:39 -0500 |
| commit | 9887ecb7dd95d9cea6986dbfdf9177694b92aa79 (patch) | |
| tree | 8695f5a5e9923a867f2c42070533ec8b65c23192 /Makefile | |
| parent | bd515acd328f0cc356cc3a859597c1e9186893f5 (diff) | |
| download | seabios-hppa-9887ecb7dd95d9cea6986dbfdf9177694b92aa79.zip seabios-hppa-9887ecb7dd95d9cea6986dbfdf9177694b92aa79.tar.gz seabios-hppa-9887ecb7dd95d9cea6986dbfdf9177694b92aa79.tar.bz2 | |
Don't use -fomit-frame-pointer when building VGA bios.
The real-mode emulator that Windows 7 uses to execute the vga bios rom
becomes very confused when the code tries to dereference the stack
pointer instead of using the frame pointer, leading to corruption of
parameters passed on the stack from one function to another.
Signed-off-by: Julian Pidancet <julian.pidancet@gmail.com>
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 13 |
1 files changed, 7 insertions, 6 deletions
@@ -32,21 +32,20 @@ COMMONCFLAGS = -I$(OUT) -Os -MD \ $(call cc-option,$(CC),-Wtype-limits,) \ -m32 -march=i386 -mregparm=3 -mpreferred-stack-boundary=2 \ -mrtd -minline-all-stringops \ - -freg-struct-return -ffreestanding -fomit-frame-pointer \ - -fno-delete-null-pointer-checks \ + -freg-struct-return -ffreestanding -fno-delete-null-pointer-checks \ -ffunction-sections -fdata-sections -fno-common COMMONCFLAGS += $(call cc-option,$(CC),-nopie,) COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector,) COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector-all,) -CFLAGS32FLAT = $(COMMONCFLAGS) -g -DMODE16=0 -DMODESEGMENT=0 +CFLAGS32FLAT = $(COMMONCFLAGS) -DMODE16=0 -DMODESEGMENT=0 -g -fomit-frame-pointer CFLAGSSEG = $(COMMONCFLAGS) -DMODESEGMENT=1 -fno-defer-pop \ $(call cc-option,$(CC),-fno-jump-tables,-DMANUAL_NO_JUMP_TABLE) \ $(call cc-option,$(CC),-fno-tree-switch-conversion,) -CFLAGS32SEG = $(CFLAGSSEG) -DMODE16=0 -g +CFLAGS32SEG = $(CFLAGSSEG) -DMODE16=0 -g -fomit-frame-pointer CFLAGS16INC = $(CFLAGSSEG) -DMODE16=1 \ $(call cc-option,$(CC),--param large-stack-frame=4,-fno-inline) -CFLAGS16 = $(CFLAGS16INC) -g +CFLAGS16 = $(CFLAGS16INC) -g -fomit-frame-pointer all: $(OUT) $(OUT)bios.bin @@ -173,7 +172,9 @@ $(OUT)bios.bin.elf $(OUT)bios.bin: $(OUT)rom.o tools/checkrom.py SRCVGA=src/output.c src/util.c vgasrc/vga.c vgasrc/vgafb.c vgasrc/vgaio.c \ vgasrc/vgatables.c vgasrc/vgafonts.c vgasrc/clext.c -$(OUT)vgaccode.16.s: $(OUT)autoconf.h ; $(call whole-compile, $(CFLAGS16) -S -Isrc, $(SRCVGA),$@) +CFLAGS16VGA = $(CFLAGS16INC) -g -Isrc + +$(OUT)vgaccode.16.s: $(OUT)autoconf.h ; $(call whole-compile, $(CFLAGS16VGA) -S, $(SRCVGA),$@) $(OUT)vgalayout16.o: vgaentry.S $(OUT)vgaccode.16.s $(OUT)asm-offsets.h @echo " Compiling (16bit) $@" |