xin/ysyx-workbench
1
0
Fork 0
Code Issues Pull requests 1 Projects Releases Packages Wiki Activity Actions

> compile NEMU

Browse source 
ysyx_22040000 李心杨
Linux calcite 6.6.18 #1-NixOS SMP PREEMPT_DYNAMIC Fri Feb 23 08:25:28 UTC 2024 x86_64 GNU/Linux
 18:21:57  up  21:50,  2 users,  load average: 0.17, 0.54, 0.83
This commit is contained in:
tracer-ysyx 2024-03-05 18:21:57 +08:00 committed by xinyangli
parent 3aceace0c3
commit 4ca052cb1b
5 changed files with 65 additions and 30 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

27
abstract-machine/Makefile
View file

@ -47,33 +47,32 @@ endif
### Create the destination directory (`build/$ARCH`)
WORK_DIR = $(shell pwd)
DST_DIR = $(WORK_DIR)/build/$(ARCH)
BUILD_DIR ?= $(WORK_DIR)/build
DST_DIR = $(BUILD_DIR)/$(ARCH)
$(shell mkdir -p $(DST_DIR))
### Compilation targets (a binary image or archive)
IMAGE_REL = build/$(NAME)-$(ARCH)
IMAGE_REL = $(DST_DIR)/$(NAME)-$(ARCH)
IMAGE = $(abspath $(IMAGE_REL))
ARCHIVE = $(WORK_DIR)/build/$(NAME)-$(ARCH).a
ARCHIVE = $(BUILD_DIR)/$(NAME)-$(ARCH).a
### Collect the files to be linked: object files (`.o`) and libraries (`.a`)
OBJS = $(addprefix $(DST_DIR)/, $(addsuffix .o, $(basename $(SRCS))))
LIBS := $(sort $(LIBS) am klib) # lazy evaluation ("=") causes infinite recursions
LINKAGE = $(OBJS) \
$(addsuffix -$(ARCH).a, $(join \
$(addsuffix /build/, $(addprefix $(AM_HOME)/, $(LIBS))), \
$(LIBS) ))
$(addsuffix -$(ARCH).a, $(addprefix $(BUILD_DIR)/, $(LIBS)))
## 3. General Compilation Flags
### (Cross) compilers, e.g., mips-linux-gnu-g++
AS = $(CROSS_COMPILE)gcc
CC = $(CROSS_COMPILE)gcc
CXX = $(CROSS_COMPILE)g++
LD = $(CROSS_COMPILE)ld
AR = $(CROSS_COMPILE)ar
OBJDUMP = $(CROSS_COMPILE)objdump
OBJCOPY = $(CROSS_COMPILE)objcopy
READELF = $(CROSS_COMPILE)readelf
AS ?= $(CROSS_COMPILE)gcc
CC ?= $(CROSS_COMPILE)gcc
CXX ?= $(CROSS_COMPILE)g++
LD ?= $(CROSS_COMPILE)ld
AR ?= $(CROSS_COMPILE)ar
OBJDUMP ?= $(CROSS_COMPILE)objdump
OBJCOPY ?= $(CROSS_COMPILE)objcopy
READELF ?= $(CROSS_COMPILE)readelf
### Compilation flags
INC_PATH += $(WORK_DIR)/include $(addsuffix /include/, $(addprefix $(AM_HOME)/, $(LIBS)))

51
flake.nix
View file

@ -19,18 +19,47 @@
{
packages.nemu = pkgs.callPackage ./nemu {};
devShells.am-kernels = crossPkgs.mkShell {
inputsFrom = [
self.packages.${system}.nemu
];
packages = [
pkgs.stdenv.cc
];
shellHook = ''
export PROJECT_ROOT=/home/xin/repo/ysyx-workbench
export AM_HOME=$PROJECT_ROOT/abstract-machine;
export NEMU_HOME=$PROJECT_ROOT/nemu;
packages.am-kernels = crossPkgs.stdenv.mkDerivation rec {
pname = "am-kernels";
version = "2024.02.18";
src = pkgs.fetchFromGitHub {
owner = "NJU-ProjectN";
repo = "am-kernels";
rev = "bb725d6f8223dd7de831c3b692e8c4531e9d01af";
hash = "sha256-ZHdrw28TN8cMvhhzM469OV7cp0Yp+8yao855HP4+P4A=";
};
AM_HOME = pkgs.fetchFromGitHub {
owner = "xinyangli";
repo = "abstract-machine";
rev = "788595aac61c6b2f3b78ca8aa7d08dc33911bca4";
hash = "sha256-YvWHIBP9tz3HL2TyibftvvQrpkWUDPnviCF4oyLmdjg=";
};
ARCH = "riscv32-nemu";
patchPhase = ''
sed -i 's/\/bin\/echo/echo/' tests/cpu-tests/Makefile
'';
buildPhase = ''
AS=$CC make -C tests/cpu-tests BUILD_DIR=$(pwd)/build ARCH=$ARCH
'';
installPhase = ''
mkdir -p $out/share/images $out/share/dump
cp build/riscv32-nemu/*.bin $out/share/images
cp build/riscv32-nemu/*.txt $out/share/dump
'';
dontFixup = true;
};
devShells.default = pkgs.mkShell {
packages = with pkgs; [
gdb
] ++ builtins.attrValues self.packages.${system};
};
}
);

3
nemu/default.nix
View file

@ -9,7 +9,6 @@ stdenv.mkDerivation rec {
src = ./.;
NEMU_HOME = "/build/nemu";
nativeBuildInputs = with pkgs; [
gnumake
flex
@ -23,7 +22,7 @@ stdenv.mkDerivation rec {
];
configurePhase = ''
echo pwd=$(pwd)
export NEMU_HOME=$(pwd)
make alldefconfig
'';

10
nemu/src/isa/riscv32/inst.c
View file

@ -23,7 +23,7 @@
#define Mw vaddr_write
enum {
TYPE_I, TYPE_U, TYPE_S,
TYPE_R, TYPE_I, TYPE_U, TYPE_S, TYPE_J,
TYPE_N, // none
};
@ -32,6 +32,7 @@ enum {
#define immI() do { *imm = SEXT(BITS(i, 31, 20), 12); } while(0)
#define immU() do { *imm = SEXT(BITS(i, 31, 12), 20) << 12; } while(0)
#define immS() do { *imm = (SEXT(BITS(i, 31, 25), 7) << 5) | BITS(i, 11, 7); } while(0)
#define immJ() do { *imm = (SEXT(BITS(i, 31, 30), 1) << 20) | BITS(i, 30, 21) << 1 | BITS(i, 21, 20) << 11 | BITS(i, 19, 12) << 12; } while(0)
static void decode_operand(Decode *s, int *rd, word_t *src1, word_t *src2, word_t *imm, int type) {
uint32_t i = s->isa.inst.val;
@ -39,8 +40,10 @@ static void decode_operand(Decode *s, int *rd, word_t *src1, word_t *src2, word_
int rs2 = BITS(i, 24, 20);
*rd = BITS(i, 11, 7);
switch (type) {
case TYPE_R: src1R(); src2R(); break;
case TYPE_I: src1R(); immI(); break;
case TYPE_U: immU(); break;
case TYPE_J: immJ(); break;
case TYPE_S: src1R(); src2R(); immS(); break;
}
}
@ -57,9 +60,14 @@ static int decode_exec(Decode *s) {
}
INSTPAT_START();
INSTPAT("??????? ????? ????? ??? ????? 01101 11", lui , U, R(rd) = imm);
INSTPAT("??????? ????? ????? ??? ????? 00101 11", auipc , U, R(rd) = s->pc + imm);
// INSTPAT("??????? ????? ????? ??? ????? 11011 11", jal, , J, do {s->dnpc = s->pc + imm; R(rd) = s->pc + 4; } while(0));
// INSTPAT("??????? ????? ????? ??? ????? 11001 11", jalr , I, do {s->dnpc = s->pc + src1; R(rd) = s->pc + 4); } while(0);
INSTPAT("??????? ????? ????? 100 ????? 00000 11", lbu , I, R(rd) = Mr(src1 + imm, 1));
INSTPAT("??????? ????? ????? 000 ????? 01000 11", sb , S, Mw(src1 + imm, 1, src2));
INSTPAT("??????? ????? ????? 000 ????? 00100 11", addi , I, R(rd) = src1 + (sword_t)imm);
INSTPAT("0000000 ????? ????? 000 ????? 01100 11", add , R, R(rd) = src1 + src2);
INSTPAT("0000000 00001 00000 000 00000 11100 11", ebreak , N, NEMUTRAP(s->pc, R(10))); // R(10) is $a0
INSTPAT("??????? ????? ????? ??? ????? ????? ??", inv , N, INV(s->pc));

2
result
View file

@ -1 +1 @@
/nix/store/3x5nz7zcwq0zhcff1d3l9lpmvmnmx2i5-nemu-2024-03-02
/nix/store/d0jlcjdrgsb5pis8flyy5ihifdnfhms5-am-kernels-riscv32-none-elf-2024.02.18