Zig binding

* zig binding - sample added
* zig build CI
* split mingw (shared/static) CI/CD
* unicorn log added
* build C/C++ samples
This commit is contained in:
Matheus C. França 2023-03-31 13:31:02 -03:00 committed by Matheus Catarino França
parent 0619deeafd
commit 4fb4b3e4b0
13 changed files with 762 additions and 7 deletions

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@ -35,7 +35,7 @@ jobs:
shared: 'yes',
mingw: MINGW64,
mingw-arch: x86_64,
artifact: 'windows_mingw64.7z',
artifact: 'windows_mingw64-shared.7z',
build_type: 'Debug',
archiver: '7z a',
generators: 'Ninja'
@ -49,7 +49,7 @@ jobs:
shared: 'no',
mingw: MINGW64,
mingw-arch: x86_64,
artifact: 'windows_mingw64.7z',
artifact: 'windows_mingw64-static.7z',
build_type: 'Debug',
archiver: '7z a',
generators: 'Ninja'
@ -217,7 +217,7 @@ jobs:
#export CC=i686-w64-mingw32-gcc
export AR=gcc-ar
export RANLIB=gcc-ranlib
export CFLAGS="-m32"
export CFLAGS="-m32 -static"
export LDFLAGS="-m32"
export LDFLAGS_STATIC="-m32"
export UNICORN_QEMU_FLAGS="--cpu=i386"
@ -230,6 +230,7 @@ jobs:
-DCMAKE_BUILD_TYPE=${{ matrix.config.build_type }} \
-G "${{ matrix.config.generators }}" \
-DCMAKE_INSTALL_PREFIX:PATH=instdir \
-DCMAKE_C_FLAGS:STRING="-static" \
-DBUILD_SHARED_LIBS=${{ matrix.config.shared }}
cmake --build . --config ${{ matrix.config.build_type }}
cmake --install . --strip

81
.github/workflows/zigbuild.yml vendored Normal file
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@ -0,0 +1,81 @@
name: Zig Build
on:
push:
paths-ignore:
- ".gitignore"
- "docs/**"
- "README"
- "CREDITS.TXT"
- "COPYING_GLIB"
- "COPYING.LGPL2"
- "AUTHORS.TXT"
- "CHANGELOG"
- "COPYING"
pull_request:
jobs:
build:
strategy:
fail-fast: false
matrix:
runs-on: [ubuntu-latest, macos-latest]
runs-on: ${{ matrix.runs-on }}
steps:
- uses: actions/checkout@v3
with:
submodules: recursive
fetch-depth: 0
- uses: goto-bus-stop/setup-zig@v2
with:
version: 0.11.0
- uses: lukka/get-cmake@latest
with:
cmakeVersion: latest
ninjaVersion: latest
- name: CMake Build
run: zig build cmake
- name: Build Summary
run: zig build --summary all -freference-trace
# ===================================================================
# zig-mingw:
# runs-on: windows-latest
# strategy:
# fail-fast: false
# matrix:
# include: [{ msystem: CLANG64, arch: x86_64, prefix: /clang64 }, { msystem: CLANG32, arch: i686, prefix: /clang32 }, { msystem: CLANGARM64, arch: aarch64, prefix: /clangarm64 }]
# steps:
# - uses: actions/checkout@v3
# with:
# path: temp
# submodules: recursive
# fetch-depth: 0
# - uses: goto-bus-stop/setup-zig@v2
# with:
# version: master
# - uses: msys2/setup-msys2@v2
# with:
# msystem: ${{ matrix.msystem }}
# path-type: inherit
# location: D:\
# install: git mingw-w64-clang-${{ matrix.arch }}-cmake
# update: true
# - name: Move Checkout
# run: |
# Copy-Item -Path ".\temp" -Destination "C:\_" -Recurse
# - name: Build Summary - ${{ matrix.arch }}
# shell: msys2 {0}
# run: |
# cd /C/_
# zig build cmake
# if [${{ matrix.config.arch }} == 'i686' ]; then
# zig build --summary all -freference-trace -Dtarget=x86-windows
# else
# zig build --summary all -freference-trace -Dtarget=${{ matrix.arch }}-windows
# fi

2
.gitignore vendored
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@ -89,3 +89,5 @@ rust_build
[Oo]bj/
packages/
cmocka/
zig-cache/
zig-out/

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@ -17,6 +17,11 @@ if(CMAKE_VERSION VERSION_GREATER_EQUAL "3.15")
cmake_policy(SET CMP0092 NEW)
endif()
option(ZIG_BUILD "Enable zig build" OFF)
if(ZIG_BUILD)
include(cmake/zig.cmake)
endif()
# Workaround to fix wrong compiler on macos.
if(APPLE AND NOT CMAKE_C_COMPILER)
set(CMAKE_C_COMPILER "/usr/bin/cc")
@ -47,7 +52,7 @@ set(UNICORN_VERSION_MAJOR 2)
set(UNICORN_VERSION_MINOR 0)
set(UNICORN_VERSION_PATCH 2)
include(bundle_static.cmake)
include(cmake/bundle_static.cmake)
# Even though we generate shared lib and static archive at the same time, we still support
# using unicorn as a subdirectory so we have to respect BUILD_SHARED_LIBS.

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@ -73,7 +73,7 @@ def copy_sources():
src.extend(glob.glob(os.path.join(ROOT_DIR, "../../*.[ch]")))
src.extend(glob.glob(os.path.join(ROOT_DIR, "../../*.mk")))
src.extend(glob.glob(os.path.join(ROOT_DIR, "../../*.cmake")))
src.extend(glob.glob(os.path.join(ROOT_DIR, "../../cmake/*.cmake")))
src.extend(glob.glob(os.path.join(ROOT_DIR, "../../LICENSE*")))
src.extend(glob.glob(os.path.join(ROOT_DIR, "../../README.md")))

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@ -0,0 +1,218 @@
//! Based on: ../../../samples/sample_riscv.c
const unicorn = @import("unicorn");
const unicornC = unicorn.c;
const log = unicorn.log;
const RISCV_CODE = "\x13\x05\x10\x00\x93\x85\x05\x02";
const ADDRESS = 0x10000;
pub fn main() !void {
try test_recover_from_illegal();
log.info("------------------", .{});
try test_riscv2();
log.info("------------------", .{});
try test_riscv_func_return();
}
fn hook_block(uc: ?*unicornC.uc_engine, address: u64, size: u32, user_data: ?*anyopaque) callconv(.C) void {
_ = user_data;
_ = uc;
log.info(">>> Tracing basic block at 0x{}, block size = 0x{}", .{ address, size });
}
fn hook_code(uc: ?*unicornC.uc_engine, address: u64, size: u32, user_data: ?*anyopaque) callconv(.C) void {
_ = user_data;
_ = uc;
log.info(">>> Tracing instruction at 0x{}, instruction size = 0x{}", .{ address, size });
}
fn hook_code3(uc: ?*unicornC.uc_engine, address: u64, size: u32, user_data: ?*anyopaque) callconv(.C) void {
_ = user_data;
log.info(">>> Tracing instruction at 0x{}, instruction size = 0x{}", .{ address, size });
if (address == ADDRESS) {
log.info("stop emulation");
unicorn.uc_emu_stop(uc) catch |err| log.err("Error: {}", .{err});
}
}
fn hook_memalloc(uc: ?*unicornC.uc_engine, @"type": unicornC.uc_mem_type, address: u64, size: u32, user_data: ?*anyopaque) callconv(.C) bool {
_ = user_data;
_ = @"type";
var algined_address = address & 0xFFFFFFFFFFFFF000;
var aligned_size = (@as(u32, @intCast(size / 0x1000)) + 1) * 0x1000;
log.info(">>> Allocating block at 0x{} (0x{}), block size = 0x{} (0x{})", .{ address, algined_address, size, aligned_size });
unicorn.uc_mem_map(uc, algined_address, aligned_size, unicornC.UC_PROT_ALL) catch |err| log.err("Error: {}", .{err});
// this recovers from missing memory, so we return true
return true;
}
fn test_recover_from_illegal() !void {
var uc: ?*unicornC.uc_engine = null;
var trace1: unicornC.uc_hook = undefined;
var trace2: unicornC.uc_hook = undefined;
var mem_alloc: unicornC.uc_hook = undefined;
var a0: u64 = 0x1234;
var a1: u64 = 0x7890;
log.info("Emulate RISCV code: recover_from_illegal", .{});
// Initialize emulator in RISCV64 mode
unicorn.uc_open(unicornC.UC_ARCH_RISCV, unicornC.UC_MODE_RISCV64, &uc) catch |err| {
log.err("Failed on uc_open() with error returned: {}", .{err});
return;
};
try unicorn.uc_reg_write(uc, unicornC.UC_RISCV_REG_A0, &a0);
try unicorn.uc_reg_write(uc, unicornC.UC_RISCV_REG_A1, &a1);
// map 2MB memory for this emulation
try unicorn.uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024, unicornC.UC_PROT_ALL);
// auto-allocate memory on access
try unicorn.uc_hook_add(uc, &mem_alloc, unicornC.UC_HOOK_MEM_UNMAPPED, @as(?*anyopaque, @ptrCast(@constCast(&hook_memalloc))), null, 1, 0);
// tracing all basic blocks with customized callback
try unicorn.uc_hook_add(uc, &trace1, unicornC.UC_HOOK_BLOCK, @as(?*anyopaque, @ptrCast(@constCast(&hook_block))), null, 1, 0);
// tracing all instruction
try unicorn.uc_hook_add(uc, &trace2, unicornC.UC_HOOK_CODE, @as(?*anyopaque, @ptrCast(@constCast(&hook_code))), null, 1, 0);
// write machine code to be emulated to memory
try unicorn.uc_mem_write(uc, ADDRESS, RISCV_CODE, RISCV_CODE.len - 1);
// emulate 1 instruction, wrong address, illegal code
unicorn.uc_emu_start(uc, 0x1000, @as(u64, @bitCast(@as(i64, -1))), 0, 1) catch |err|
log.err("Expected Illegal Instruction error, got: {} ({s})", .{ err, unicorn.uc_strerror(err) });
// emulate 1 instruction, correct address, valid code
unicorn.uc_emu_start(uc, ADDRESS, @as(u64, @bitCast(@as(i64, -1))), 0, 1) catch |err|
log.err("Failed on uc_emu_start() with error returned: {}", .{err});
// now print out some registers
log.info(">>> Emulation done. Below is the CPU context", .{});
try unicorn.uc_reg_read(uc, unicornC.UC_RISCV_REG_A0, @as(?*anyopaque, @ptrCast(@constCast(&a0))));
try unicorn.uc_reg_read(uc, unicornC.UC_RISCV_REG_A1, @as(?*anyopaque, @ptrCast(@constCast(&a1))));
log.info(">>> A0 = 0x{}", .{a0});
log.info(">>> A1 = 0x{}", .{a1});
try unicorn.uc_close(uc);
}
fn test_riscv_func_return() !void {
var uc: ?*unicornC.uc_engine = null;
var trace1: unicornC.uc_hook = undefined;
var trace2: unicornC.uc_hook = undefined;
var pc: u64 = 0;
var ra: u64 = 0;
const CODE = "\x67\x80\x00\x00\x82\x80\x01\x00\x01\x00";
log.info("Emulate RISCV code: return from func", .{});
// Initialize emulator in RISCV64 mode
unicorn.uc_open(unicornC.UC_ARCH_RISCV, unicornC.UC_MODE_RISCV64, &uc) catch |err| {
log.err("Failed on uc_open() with error returned: {} ({s})", .{ err, unicorn.uc_strerror(err) });
return;
};
// map 2MB memory for this emulation
try unicorn.uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024, unicornC.UC_PROT_ALL);
// write machine code to be emulated to memory
try unicorn.uc_mem_write(uc, ADDRESS, CODE, CODE.len - 1);
// tracing all basic blocks with customized callback
try unicorn.uc_hook_add(uc, &trace1, unicornC.UC_HOOK_BLOCK, @as(?*anyopaque, @ptrCast(@constCast(&hook_block))), null, 1, 0);
// tracing all instruction
try unicorn.uc_hook_add(uc, &trace2, unicornC.UC_HOOK_CODE, @as(?*anyopaque, @ptrCast(@constCast(&hook_code))), null, 1, 0);
ra = 0x10006;
try unicorn.uc_reg_write(uc, unicornC.UC_RISCV_REG_RA, @as(?*anyopaque, @ptrCast(@constCast(&ra))));
log.info("========", .{});
// execute c.ret instruction
unicorn.uc_emu_start(uc, 0x10004, @as(u64, @bitCast(@as(i64, -1))), 0, 1) catch |err| {
log.err("Failed on uc_emu_start() with error returned: {}", .{err});
};
try unicorn.uc_reg_read(uc, unicornC.UC_RISCV_REG_PC, @as(?*anyopaque, @ptrCast(@constCast(&pc))));
if (pc != ra) {
log.info("Error after execution: PC is: 0x{}, expected was 0x{}", .{ pc, ra });
if (pc == 0x10004) {
log.info(" PC did not change during execution", .{});
}
} else {
log.info("Good, PC == RA", .{});
}
// now print out some registers
log.info(">>> Emulation done.", .{});
try unicorn.uc_close(uc);
}
fn test_riscv2() !void {
var uc: ?*unicornC.uc_engine = null;
var trace1: unicornC.uc_hook = undefined;
var trace2: unicornC.uc_hook = undefined;
var a0: u32 = 0x1234;
var a1: u32 = 0x7890;
log.info("Emulate RISCV code: split emulation", .{});
// Initialize emulator in RISCV64 mode
unicorn.uc_open(unicornC.UC_ARCH_RISCV, unicornC.UC_MODE_RISCV32, &uc) catch |err| {
log.err("Failed on unicornC.uc_open() with error returned: {} ({s})", .{ err, unicorn.uc_strerror(err) });
return;
};
// map 2MB memory for this emulation
try unicorn.uc_mem_map(uc, ADDRESS, 2 * 1024 * 1024, unicornC.UC_PROT_ALL);
// write machine code to be emulated to memory
try unicorn.uc_mem_write(uc, ADDRESS, RISCV_CODE, RISCV_CODE.len - 1);
// initialize machine registers
try unicorn.uc_reg_write(uc, unicornC.UC_RISCV_REG_A0, @as(?*anyopaque, @ptrCast(@constCast(&a0))));
try unicorn.uc_reg_write(uc, unicornC.UC_RISCV_REG_A1, @as(?*anyopaque, @ptrCast(@constCast(&a1))));
// tracing all basic blocks with customized callback
try unicorn.uc_hook_add(uc, &trace1, unicornC.UC_HOOK_BLOCK, @as(?*anyopaque, @ptrCast(@constCast(&hook_block))), null, 1, 0);
// tracing all instruction
try unicorn.uc_hook_add(uc, &trace2, unicornC.UC_HOOK_CODE, @as(?*anyopaque, @ptrCast(@constCast(&hook_block))), null, 1, 0);
// emulate 1 instruction
unicorn.uc_emu_start(uc, ADDRESS, ADDRESS + 4, 0, 0) catch |err| {
log.err("Failed on unicornC.uc_emu_start() with error returned: {}", .{err});
};
try unicorn.uc_reg_read(uc, unicornC.UC_RISCV_REG_A0, @as(?*anyopaque, @ptrCast(@constCast(&a0))));
try unicorn.uc_reg_read(uc, unicornC.UC_RISCV_REG_A1, @as(?*anyopaque, @ptrCast(@constCast(&a1))));
log.info(">>> A0 = 0x{}", .{a0});
log.info(">>> A1 = 0x{}", .{a1});
// emulate one more instruction
unicorn.uc_emu_start(uc, ADDRESS + 4, ADDRESS + 8, 0, 0) catch |err| {
log.err("Failed on unicornC.uc_emu_start() with error returned: {}", .{err});
};
// now print out some registers
log.info(">>> Emulation done. Below is the CPU context", .{});
try unicorn.uc_reg_read(uc, unicornC.UC_RISCV_REG_A0, @as(?*anyopaque, @ptrCast(@constCast(&a0))));
try unicorn.uc_reg_read(uc, unicornC.UC_RISCV_REG_A1, @as(?*anyopaque, @ptrCast(@constCast(&a1))));
log.info(">>> A0 = 0x{}", .{a0});
log.info(">>> A1 = 0x{}", .{a1});
try unicorn.uc_close(uc);
}

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@ -0,0 +1,3 @@
@echo off
zig cc -fno-sanitize=all %*

3
bindings/zig/tools/zigcc.sh Executable file
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@ -0,0 +1,3 @@
#! /usr/bin/env bash
`which zig` cc -fno-sanitize=all $@

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@ -1,3 +1,5 @@
/// Public include's
// Architectures
pub const arm = @import("arm_const.zig");
pub const arm64 = @import("arm64_const.zig");
@ -9,5 +11,192 @@ pub const tricore = @import("tricore_const.zig");
pub const sparc = @import("sparc_const.zig");
pub const s390x = @import("s390x_const.zig");
pub const x86 = @import("x86_const.zig");
// Unicorn
pub const unicorn = @import("unicorn_const.zig");
// Unicorn consts
pub usingnamespace @import("unicorn_const.zig");
// C include
pub const c = @cImport(@cInclude("unicorn/unicorn.h"));
pub fn uc_version(major: [*c]c_uint, minor: [*c]c_uint) c_uint {
return c.uc_version(major, minor);
}
pub fn uc_arch_supported(arch: c.uc_arch) bool {
return c.uc_arch_supported(arch);
}
pub fn uc_open(arch: c.uc_arch, mode: c.uc_mode, uc: [*c]?*c.uc_engine) !void {
try getErrors(c.uc_open(arch, mode, uc));
}
pub fn uc_close(uc: ?*c.uc_engine) !void {
try getErrors(c.uc_close(uc));
}
pub fn uc_query(uc: ?*c.uc_engine, @"type": c.uc_query_type, result: [*c]usize) !void {
try getErrors(c.uc_query(uc, @"type", result));
}
pub fn uc_ctl(uc: ?*c.uc_engine, control: c.uc_control_type) !void {
try getErrors(c.uc_ctl(uc, control));
}
pub fn uc_errno(uc: ?*c.uc_engine) !void {
try getErrors(c.uc_errno(uc));
}
pub fn uc_strerror(code: Error) [*:0]const u8 {
return switch (code) {
error.ucErrNoMemory => c.uc_strerror(c.UC_ERR_NOMEM),
error.ucErrArch => c.uc_strerror(c.UC_ERR_ARCH),
error.ucErrHandle => c.uc_strerror(c.UC_ERR_HANDLE),
error.ucErrMode => c.uc_strerror(c.UC_ERR_MODE),
error.ucErrVersion => c.uc_strerror(c.UC_ERR_VERSION),
error.ucErrReadUnmapped => c.uc_strerror(c.UC_ERR_READ_UNMAPPED),
error.ucErrWriteUnmapped => c.uc_strerror(c.UC_ERR_WRITE_UNMAPPED),
error.ucErrFetchUnmapped => c.uc_strerror(c.UC_ERR_FETCH_UNMAPPED),
error.ucErrHook => c.uc_strerror(c.UC_ERR_HOOK),
error.ucErrInvalidInstruction => c.uc_strerror(c.UC_ERR_INSN_INVALID),
error.ucErrMap => c.uc_strerror(c.UC_ERR_MAP),
error.ucErrWriteProtected => c.uc_strerror(c.UC_ERR_WRITE_PROT),
error.ucErrReadProtected => c.uc_strerror(c.UC_ERR_READ_PROT),
error.ucErrFetchProtected => c.uc_strerror(c.UC_ERR_FETCH_PROT),
error.ucErrInvalidArgument => c.uc_strerror(c.UC_ERR_ARG),
error.ucErrReadUnaligned => c.uc_strerror(c.UC_ERR_READ_UNALIGNED),
error.ucErrWriteUnaligned => c.uc_strerror(c.UC_ERR_WRITE_UNALIGNED),
error.ucErrFetchUnaligned => c.uc_strerror(c.UC_ERR_FETCH_UNALIGNED),
error.ucErrHookAlreadyExists => c.uc_strerror(c.UC_ERR_HOOK_EXIST),
error.ucErrResource => c.uc_strerror(c.UC_ERR_RESOURCE),
error.ucErrException => c.uc_strerror(c.UC_ERR_EXCEPTION),
};
}
pub fn uc_reg_write(uc: ?*c.uc_engine, regid: c_int, value: ?*const anyopaque) !void {
try getErrors(c.uc_reg_write(uc, regid, value));
}
pub fn uc_reg_read(uc: ?*c.uc_engine, regid: c_int, value: ?*anyopaque) !void {
try getErrors(c.uc_reg_read(uc, regid, value));
}
pub fn uc_reg_write_batch(uc: ?*c.uc_engine, regs: [*c]c_int, vals: [*c]const ?*anyopaque, count: c_int) !void {
try getErrors(c.uc_reg_write_batch(uc, regs, vals, count));
}
pub fn uc_reg_read_batch(uc: ?*c.uc_engine, regs: [*c]c_int, vals: [*c]?*anyopaque, count: c_int) !void {
try getErrors(c.uc_reg_read_batch(uc, regs, vals, count));
}
pub fn uc_mem_write(uc: ?*c.uc_engine, address: u64, bytes: ?*const anyopaque, size: usize) !void {
try getErrors(c.uc_mem_write(uc, address, bytes, size));
}
pub fn uc_mem_read(uc: ?*c.uc_engine, address: u64, bytes: ?*anyopaque, size: usize) !void {
try getErrors(c.uc_mem_read(uc, address, bytes, size));
}
pub fn uc_emu_start(uc: ?*c.uc_engine, begin: u64, until: u64, timeout: u64, count: usize) !void {
try getErrors(c.uc_emu_start(uc, begin, until, timeout, count));
}
pub fn uc_emu_stop(uc: ?*c.uc_engine) !void {
try getErrors(c.uc_emu_stop(uc));
}
pub fn uc_hook_add(uc: ?*c.uc_engine, hh: [*c]c.uc_hook, @"type": c_int, callback: ?*anyopaque, user_data: ?*anyopaque, begin: u64, end: u64) !void {
try getErrors(c.uc_hook_add(uc, hh, @"type", callback, user_data, begin, end));
}
pub fn uc_hook_del(uc: ?*c.uc_engine, hh: c.uc_hook) !void {
try getErrors(c.uc_hook_del(uc, hh));
}
pub fn uc_mem_map(uc: ?*c.uc_engine, address: u64, size: usize, perms: u32) !void {
try getErrors(c.uc_mem_map(uc, address, size, perms));
}
pub fn uc_mem_map_ptr(uc: ?*c.uc_engine, address: u64, size: usize, perms: u32, ptr: ?*anyopaque) !void {
try getErrors(c.uc_mem_map_ptr(uc, address, size, perms, ptr));
}
pub fn uc_mmio_map(uc: ?*c.uc_engine, address: u64, size: usize, read_cb: c.uc_cb_mmio_read_t, user_data_read: ?*anyopaque, write_cb: c.uc_cb_mmio_write_t, user_data_write: ?*anyopaque) !void {
try getErrors(c.uc_mmio_map(uc, address, size, read_cb, user_data_read, write_cb, user_data_write));
}
pub fn uc_mem_unmap(uc: ?*c.uc_engine, address: u64, size: usize) !void {
try getErrors(c.uc_mem_unmap(uc, address, size));
}
pub fn uc_mem_protect(uc: ?*c.uc_engine, address: u64, size: usize, perms: u32) !void {
try getErrors(c.uc_mem_protect(uc, address, size, perms));
}
pub fn uc_mem_regions(uc: ?*c.uc_engine, regions: [*c][*c]c.uc_mem_region, count: [*c]u32) !void {
try getErrors(c.uc_mem_regions(uc, regions, count));
}
pub fn uc_context_alloc(uc: ?*c.uc_engine, context: [*c]?*c.uc_context) !void {
try getErrors(c.uc_context_alloc(uc, context));
}
pub fn uc_free(mem: ?*anyopaque) !void {
try getErrors(c.uc_free(mem));
}
pub fn uc_context_save(uc: ?*c.uc_engine, context: ?*c.uc_context) !void {
try getErrors(c.uc_context_save(uc, context));
}
pub fn uc_context_reg_write(ctx: ?*c.uc_context, regid: c_int, value: ?*const anyopaque) !void {
try getErrors(c.uc_context_reg_write(ctx, regid, value));
}
pub fn uc_context_reg_read(ctx: ?*c.uc_context, regid: c_int, value: ?*anyopaque) !void {
try getErrors(c.uc_context_reg_read(ctx, regid, value));
}
pub fn uc_context_reg_write_batch(ctx: ?*c.uc_context, regs: [*c]c_int, vals: [*c]const ?*anyopaque, count: c_int) !void {
try getErrors(c.uc_context_reg_write_batch(ctx, regs, vals, count));
}
pub fn uc_context_reg_read_batch(ctx: ?*c.uc_context, regs: [*c]c_int, vals: [*c]?*anyopaque, count: c_int) !void {
try getErrors(c.uc_context_reg_read_batch(ctx, regs, vals, count));
}
pub fn uc_context_restore(uc: ?*c.uc_engine, context: ?*c.uc_context) !void {
try getErrors(c.uc_context_restore(uc, context));
}
pub fn uc_context_size(uc: ?*c.uc_engine) usize {
try getErrors(c.uc_context_size(uc));
}
pub fn uc_context_free(context: ?*c.uc_context) !void {
try getErrors(c.uc_context_free(context));
}
pub const Error = error{
ucErrNoMemory,
ucErrArch,
ucErrHandle,
ucErrMode,
ucErrVersion,
ucErrReadUnmapped,
ucErrWriteUnmapped,
ucErrFetchUnmapped,
ucErrHook,
ucErrInvalidInstruction,
ucErrMap,
ucErrWriteProtected,
ucErrReadProtected,
ucErrFetchProtected,
ucErrInvalidArgument,
ucErrReadUnaligned,
ucErrWriteUnaligned,
ucErrFetchUnaligned,
ucErrHookAlreadyExists,
ucErrResource,
ucErrException,
};
pub fn errorsToZig(err: c.uc_err) Error!c_int {
return switch (err) {
//c.UC_ERR_OK - isn't error
c.UC_ERR_NOMEM => error.ucErrNoMemory,
c.UC_ERR_ARCH => error.ucErrArch,
c.UC_ERR_HANDLE => error.ucErrHandle,
c.UC_ERR_MODE => error.ucErrMode,
c.UC_ERR_VERSION => error.ucErrVersion,
c.UC_ERR_READ_UNMAPPED => error.ucErrReadUnmapped,
c.UC_ERR_WRITE_UNMAPPED => error.ucErrWriteUnmapped,
c.UC_ERR_FETCH_UNMAPPED => error.ucErrFetchUnmapped,
c.UC_ERR_HOOK => error.ucErrHook,
c.UC_ERR_INSN_INVALID => error.ucErrInvalidInstruction,
c.UC_ERR_MAP => error.ucErrMap,
c.UC_ERR_WRITE_PROT => error.ucErrWriteProtected,
c.UC_ERR_READ_PROT => error.ucErrReadProtected,
c.UC_ERR_FETCH_PROT => error.ucErrFetchProtected,
c.UC_ERR_ARG => error.ucErrInvalidArgument,
c.UC_ERR_READ_UNALIGNED => error.ucErrReadUnaligned,
c.UC_ERR_WRITE_UNALIGNED => error.ucErrWriteUnaligned,
c.UC_ERR_FETCH_UNALIGNED => error.ucErrFetchUnaligned,
c.UC_ERR_HOOK_EXIST => error.ucErrHookAlreadyExists,
c.UC_ERR_RESOURCE => error.ucErrResource,
c.UC_ERR_EXCEPTION => error.ucErrException,
else => -1,
};
}
fn getErrors(err: c.uc_err) !void {
if (try errorsToZig(err) == c.UC_ERR_OK)
return;
}
pub const log = @import("std").log.scoped(.unicorn);

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//! License: GNU GENERAL PUBLIC LICENSE Version 2
const std = @import("std");
// Although this function looks imperative, note that its job is to
// declaratively construct a build graph that will be executed by an external
// runner.
pub fn build(b: *std.Build) void {
if (comptime !checkVersion())
@compileError("Please! Update zig toolchain to >= v0.11!");
// Standard target options allows the person running `zig build` to choose
// what target to build for. Here we do not override the defaults, which
// means any target is allowed, and the default is native. Other options
// for restricting supported target set are available.
const target = b.standardTargetOptions(.{});
// Standard optimization options allow the person running `zig build` to select
// between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall. Here we do not
// set a preferred release mode, allowing the user to decide how to optimize.
const optimize = b.standardOptimizeOption(.{});
// flag: -DSamples=True/False
const samples = b.option(bool, "Samples", "Build all Samples [default: true]") orelse true;
// Build Samples
if (samples) {
// Zig
buildExe(b, .{
.target = target,
.optimize = optimize,
.filetype = .zig,
.filepath = "bindings/zig/sample/sample_riscv_zig.zig",
});
// C
buildExe(b, .{
.target = target,
.optimize = optimize,
.filetype = .c,
.filepath = "samples/sample_arm.c",
});
buildExe(b, .{
.target = target,
.optimize = optimize,
.filetype = .c,
.filepath = "samples/sample_arm64.c",
});
buildExe(b, .{
.target = target,
.optimize = optimize,
.filetype = .c,
.filepath = "samples/sample_ctl.c",
});
buildExe(b, .{
.target = target,
.optimize = optimize,
.filetype = .c,
.filepath = "samples/sample_batch_reg.c",
});
buildExe(b, .{
.target = target,
.optimize = optimize,
.filetype = .c,
.filepath = "samples/sample_m68k.c",
});
buildExe(b, .{
.target = target,
.optimize = optimize,
.filetype = .c,
.filepath = "samples/sample_riscv.c",
});
buildExe(b, .{
.target = target,
.optimize = optimize,
.filetype = .c,
.filepath = "samples/sample_sparc.c",
});
buildExe(b, .{
.target = target,
.optimize = optimize,
.filetype = .c,
.filepath = "samples/sample_s390x.c",
});
buildExe(b, .{
.target = target,
.optimize = optimize,
.filetype = .c,
.filepath = "samples/shellcode.c",
});
buildExe(b, .{
.target = target,
.optimize = optimize,
.filetype = .c,
.filepath = "samples/sample_tricore.c",
});
buildExe(b, .{
.target = target,
.optimize = optimize,
.filetype = .c,
.filepath = "samples/sample_x86.c",
});
buildExe(b, .{
.target = target,
.optimize = optimize,
.filetype = .c,
.filepath = "samples/sample_x86_32_gdt_and_seg_regs.c",
});
}
// CMake Build
const cmake = cmakeBuild(b);
const cmake_step = b.step("cmake", "Run cmake build");
cmake_step.dependOn(&cmake.step);
}
fn buildExe(b: *std.Build, info: BuildInfo) void {
const execonfig: std.Build.ExecutableOptions = switch (info.filetype) {
.c, .cpp => .{
.name = info.filename(),
.target = info.target,
.optimize = info.optimize,
},
else => .{
.name = info.filename(),
.target = info.target,
.optimize = info.optimize,
.root_source_file = .{
.path = info.filepath,
},
},
};
const unicornBuild = b.addExecutable(execonfig);
if (info.filetype != .zig)
unicornBuild.addCSourceFile(.{
.file = .{ .path = info.filepath },
.flags = &.{
"-Wall",
"-Werror",
"-fno-sanitize=all",
"-Wshadow",
},
})
else
unicornBuild.addAnonymousModule("unicorn", .{
.source_file = .{
.path = "bindings/zig/unicorn/unicorn.zig",
},
});
unicornBuild.addIncludePath(.{ .path = "include" });
// need run cmake before
unicornBuild.addLibraryPath(.{ .path = "build" });
if (info.target.isWindows()) {
unicornBuild.want_lto = false;
unicornBuild.linkSystemLibraryName("unicorn.dll");
} else unicornBuild.linkSystemLibrary("unicorn");
// linking to OS-LibC or static-linking for:
// Musl(Linux) [e.g: -Dtarget=native-linux-musl]
// MinGW(Windows) [e.g: -Dtarget=native-windows-gnu (default)]
if (info.filetype == .cpp and info.target.getAbi() != .msvc)
unicornBuild.linkLibCpp() // static-linking LLVM-libcxx (all targets) + libC
else
unicornBuild.linkLibC();
// This declares intent for the executable to be installed into the
// standard location when the user invokes the "install" step (the default
// step when running `zig build`).
b.installArtifact(unicornBuild);
// This *creates* a RunStep in the build graph, to be executed when another
// step is evaluated that depends on it. The next line below will establish
// such a dependency.
const run_cmd = b.addRunArtifact(unicornBuild);
// By making the run step depend on the install step, it will be run from the
// installation directory rather than directly from within the cache directory.
// This is not necessary, however, if the application depends on other installed
// files, this ensures they will be present and in the expected location.
run_cmd.step.dependOn(b.getInstallStep());
// This allows the user to pass arguments to the application in the build
// command itself, like this: `zig build run -- arg1 arg2 etc`
if (b.args) |args| {
run_cmd.addArgs(args);
}
// This creates a build step. It will be visible in the `zig build --help` menu,
// and can be selected like this: `zig build run`
// This will evaluate the `run` step rather than the default, which is "install".
const run_step = b.step(info.filename(), b.fmt("Run the {s}.", .{info.filename()}));
run_step.dependOn(&run_cmd.step);
}
fn cmakeBuild(b: *std.Build) *std.Build.Step.Run {
const preconf = b.addSystemCommand(&.{
"cmake",
"-B",
"build",
"-DZIG_BUILD=ON",
"-DUNICORN_BUILD_TESTS=OFF",
"-DUNICORN_INSTALL=OFF",
"-DCMAKE_BUILD_TYPE=Release",
});
const cmakebuild = b.addSystemCommand(&.{
"cmake",
"--build",
"build",
"--config",
"release",
"--parallel",
});
cmakebuild.step.dependOn(&preconf.step);
return cmakebuild;
}
fn checkVersion() bool {
const builtin = @import("builtin");
if (!@hasDecl(builtin, "zig_version")) {
return false;
}
const needed_version = std.SemanticVersion.parse("0.11.0") catch unreachable;
const version = builtin.zig_version;
const order = version.order(needed_version);
return order != .lt;
}
const BuildInfo = struct {
filepath: []const u8,
filetype: enum {
c,
cpp,
zig,
},
target: std.zig.CrossTarget,
optimize: std.builtin.OptimizeMode,
fn filename(self: BuildInfo) []const u8 {
var split = std.mem.splitSequence(u8, std.fs.path.basename(self.filepath), ".");
return split.first();
}
};

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set(CMAKE_CROSSCOMPILING TRUE)
# set the compiler
if(WIN32)
SET(ZIG_CC ${CMAKE_SOURCE_DIR}/bindings/zig/tools/zigcc.cmd)
else()
SET(ZIG_CC ${CMAKE_SOURCE_DIR}/bindings/zig/tools/zigcc.sh)
endif()
SET(CMAKE_C_COMPILER_ID ${ZIG_CC})
SET(CMAKE_C_COMPILER ${ZIG_CC})