Files
s390-tools/zipl/boot/Makefile
Mikhail Zaslonko 54519b4465 zipl: Update page_is_valid() function to avoid tprot usage
Old implementation was using Test Protection (TPROT) instruction to
validate the memory page. Given that it is a rather slow instruction and
the fact that we only need to validate the read-access for a page, we can
use simple Load or Insert Character instruction to test that.
The new version of page_is_valid() without a TPROT is introduced.

Signed-off-by: Mikhail Zaslonko <zaslonko@linux.vnet.ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
2018-05-07 13:42:03 +02:00

92 lines
2.5 KiB
Makefile

# Common definitions
include ../../common.mak
CFLAGS_BOOT = $(NO_PIE_CFLAGS) -Os -g -I../include -D__ASSEMBLY__ \
-DS390_TOOLS_RELEASE=$(S390_TOOLS_RELEASE) \
-fno-builtin -ffreestanding -fno-asynchronous-unwind-tables \
-fno-delete-null-pointer-checks \
-fexec-charset=IBM1047 -m64 -mpacked-stack \
-mstack-size=8192 -mstack-guard=128 -msoft-float \
-W -Wall -Wformat-security
FILES = fba0.bin fba1b.bin fba2.bin \
eckd0_ldl.bin eckd0_cdl.bin \
eckd1.bin eckd1b.bin eckd2.bin \
tape0.bin \
eckd2dump_sv.bin tape2dump.bin fba2dump.bin eckd2dump_mv.bin \
stage3.bin
all: data.o data.h tape0.bin
# Prevent make from using some default rules...
%: %.S
%.o: %.S
$(CC) $(CFLAGS_BOOT) -c -o $@ $<
%.o: %.c
$(CC) $(CFLAGS_BOOT) -c -o $@ $<
eckd2dump_sv.exec: \
head.o stage2dump.o cio.o eckd2dump.o eckd2dump_sv.o \
libc.o sclp.o entry.o
eckd2dump_mv.exec: \
head.o stage2dump.o cio.o eckd2dump.o eckd2dump_mv.o \
libc.o sclp.o entry.o
fba2dump.exec: \
head.o stage2dump.o cio.o fba2dump.o \
libc.o sclp.o entry.o
tape2dump.exec: \
head.o stage2dump.o cio.o tape2dump.o \
libc.o sclp.o entry.o
eckd2.exec: head.o stage2.o cio.o eckd2.o libc.o menu.o sclp.o \
kdump2.o kdump.o entry.o
fba2.exec: head.o stage2.o cio.o fba2.o libc.o menu.o sclp.o \
kdump2.o kdump.o entry.o
stage3.exec: head.o stage3.o kdump3.o libc.o sclp.o sclp_stage3.o \
kdump.o entry.o
%.exec: %.o
@STAGE=$$( \
echo $@ | awk ' \
match($$0,/[0-9]+b*/){ \
print substr($$0,RSTART,RLENGTH) \
}' \
); \
case $$STAGE in \
0) SFLAGS="$(NO_PIE_LINKFLAGS) -nostdlib -Wl,-Ttext,0";; \
1) SFLAGS="$(NO_PIE_LINKFLAGS) -nostdlib -Wl,-Ttext,0x18";; \
1b) SFLAGS="$(NO_PIE_LINKFLAGS) -nostdlib -Wl,-Ttext,0xE000";; \
2) SFLAGS="$(NO_PIE_LINKFLAGS) -nostdlib -Wl,-T,stage2.lds";; \
3) SFLAGS="$(NO_PIE_LINKFLAGS) -nostdlib -Wl,-T,stage3.lds";; \
esac; \
$(LINK) $$SFLAGS -m64 $^ -o $@
%.bin: %.exec
$(OBJCOPY) -O binary \
--only-section=.stage2.head \
--only-section=.text.dummy \
--only-section=.text.start \
--only-section=.text \
--only-section=.ex_table \
--only-section=.data \
--only-section=.rodata.str1.2 \
--only-section=.rodata \
--only-section=.stage2dump.tail \
--only-section=.eckd2dump_mv.tail \
--only-section=.fixup \
$< $@
data.o: $(FILES)
$(LD) $(NO_PIE_LDFLAGS) -r -b binary -o data.o $(FILES)
data.h: data.o
rm -f data.h
$(NM) data.o | while read ADDR TYPE SYMBOL ; do \
echo "extern char $$SYMBOL;" >>data.h; done
clean:
rm -f *.o *.exec *.bin $(FILES) data.o data.h tape0.bin *.xxx *.yyy
.PHONY: all clean