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2021 pre-release

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This commit is contained in:
Zihao Yu 2021-07-13 15:53:57 +08:00
parent 11059d5b6f
commit a94708b3b5
42 changed files with 278 additions and 227 deletions
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1
scripts/isa/x86.mk
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@ -1,3 +1,4 @@
export CROSS_COMPILE := x86_64-linux-gnu-
CFLAGS += -m32 -fno-pic -fno-omit-frame-pointer -march=i386
CFLAGS += -fcf-protection=none # remove endbr32 in Ubuntu 20.04 with a CPU newer than Comet Lake
ASFLAGS += -m32 -fno-pic

1
scripts/isa/x86_64.mk
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@ -1,3 +1,4 @@
export CROSS_COMPILE := x86_64-linux-gnu-
CFLAGS += -m64 -fPIC -mno-sse
ASFLAGS += -m64 -fPIC
LDFLAGS += -melf_x86_64

1
scripts/mips32-nemu.mk
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@ -1,2 +1,3 @@
include $(AM_HOME)/scripts/isa/mips32.mk
include $(AM_HOME)/scripts/platform/nemu.mk
LDFLAGS += --defsym=_pmem_start=0x80000000

12
scripts/native.mk
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@ -5,20 +5,20 @@ AM_SRCS := native/trm.c \
native/vme.c \
native/mpe.c \
native/platform.c \
native/native-input.c \
native/native-timer.c \
native/native-gpu.c \
native/native-audio.c \
native/ioe/input.c \
native/ioe/timer.c \
native/ioe/gpu.c \
native/ioe/audio.c \
CFLAGS += -fpie
ASFLAGS += -fpie -pie
image:
@echo + LD "->" $(IMAGE_REL)
@g++ -pie -o $(IMAGE) -Wl,--whole-archive $(LINKAGE) -Wl,-no-whole-archive -lSDL2
@g++ -pie -o $(IMAGE) -Wl,--whole-archive $(LINKAGE) -Wl,-no-whole-archive -lSDL2 -ldl
run: image
$(IMAGE)
gdb: image
gdb -ex "handle SIGUSR1 SIGSEGV noprint nostop" $(IMAGE)
gdb -ex "handle SIGUSR1 SIGUSR2 SIGSEGV noprint nostop" $(IMAGE)

32
scripts/platform/nemu.ld Normal file
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@ -0,0 +1,32 @@
ENTRY(_start)
SECTIONS {
/* _pmem_start and _entry_offset are defined in LDFLAGS */
. = _pmem_start + _entry_offset;
.text : {
*(entry)
*(.text*)
}
etext = .;
_etext = .;
.rodata : {
*(.rodata*)
}
.data : {
*(.data)
}
edata = .;
_data = .;
.bss : {
_bss_start = .;
*(.bss*)
*(.sbss*)
*(.scommon)
}
_stack_top = ALIGN(0x1000);
. = _stack_top + 0x8000;
_stack_pointer = .;
end = .;
_end = .;
_heap_start = ALIGN(0x1000);
}

5
scripts/platform/nemu.mk
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@ -8,11 +8,10 @@ AM_SRCS := nemu/trm.c \
nemu/isa/$(ISA)/trap.S \
nemu/isa/$(ISA)/vme.c \
nemu/mpe.c \
nemu/isa/$(ISA)/boot/start.S
nemu/isa/$(ISA)/start.S
CFLAGS += -fdata-sections -ffunction-sections
LDFLAGS += -L $(AM_HOME)/am/src/nemu/scripts
LDFLAGS += -T $(AM_HOME)/am/src/nemu/isa/$(ISA)/boot/loader.ld
LDFLAGS += -T $(AM_HOME)/scripts/platform/nemu.ld --defsym=_entry_offset=0x100000
LDFLAGS += --gc-sections -e _start
NEMUFLAGS += -b -l $(shell dirname $(IMAGE).elf)/nemu-log.txt $(IMAGE).bin

1
scripts/riscv32-nemu.mk
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@ -1,2 +1,3 @@
include $(AM_HOME)/scripts/isa/riscv32.mk
include $(AM_HOME)/scripts/platform/nemu.mk
LDFLAGS += --defsym=_pmem_start=0x80000000

1
scripts/riscv64-nemu.mk
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@ -1,2 +1,3 @@
include $(AM_HOME)/scripts/isa/riscv64.mk
include $(AM_HOME)/scripts/platform/nemu.mk
LDFLAGS += --defsym=_pmem_start=0x80000000

3
scripts/x86-nemu.mk
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@ -1,3 +1,4 @@
include $(AM_HOME)/scripts/isa/x86.mk
CFLAGS += -mstringop-strategy=loop
include $(AM_HOME)/scripts/platform/nemu.mk
CFLAGS += -mstringop-strategy=loop
LDFLAGS += --defsym=_pmem_start=0x0