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build.py
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#!/usr/bin/python
# INFORMATION:
# This scripts compiles the original Unicorn framework to JavaScript
import os
import glob
import shutil
import stat
import sys
EXPORTED_FUNCTIONS = [
'_uc_version',
'_uc_arch_supported',
'_uc_open',
'_uc_close',
'_uc_query',
'_uc_errno',
'_uc_strerror',
'_uc_reg_write',
'_uc_reg_read',
'_uc_reg_write_batch',
'_uc_reg_read_batch',
'_uc_mem_write',
'_uc_mem_read',
'_uc_emu_start',
'_uc_emu_stop',
'_uc_hook_add',
'_uc_hook_del',
'_uc_mem_map',
'_uc_mem_map_ptr',
'_uc_mem_unmap',
'_uc_mem_protect',
'_uc_mem_regions',
'_uc_context_alloc',
'_uc_free',
'_uc_context_save',
'_uc_context_restore',
'_malloc',
'_free',
]
EXPORTED_CONSTANTS = [
'bindings/python/unicorn/arm64_const.py',
'bindings/python/unicorn/arm_const.py',
'bindings/python/unicorn/m68k_const.py',
'bindings/python/unicorn/mips_const.py',
'bindings/python/unicorn/sparc_const.py',
'bindings/python/unicorn/x86_const.py',
'bindings/python/unicorn/unicorn_const.py',
]
# Directories
UNICORN_DIR = os.path.abspath("unicorn")
UNICORN_QEMU_DIR = os.path.join(UNICORN_DIR, "qemu")
ORIGINAL_QEMU_DIR = os.path.abspath("externals/qemu-2.2.1")
def generateConstants():
out = open('src/unicorn-constants.js', 'w')
for path in EXPORTED_CONSTANTS:
path = os.path.join(UNICORN_DIR, path)
with open(path, 'r') as f:
code = f.read()
code = code.replace('\nUC_', '\nuc.')
code = code.replace('#', '//')
out.write(code)
out.close()
#############
# Utilities #
#############
# Replace strings in files
def replace(path, replacements):
pathBak = path + ".bak"
if os.path.exists(pathBak):
return
shutil.move(path, pathBak)
fin = open(pathBak, "rt")
fout = open(path, "wt")
for line in fin:
for string in replacements:
line = line.replace(string, replacements[string])
fout.write(line)
fin.close()
fout.close()
# Insert strings in files after a specific line
def insert(path, match, strings):
pathBak = path + ".bak"
if os.path.exists(pathBak):
return
shutil.move(path, pathBak)
fin = open(pathBak, "rt")
fout = open(path, "wt")
for line in fin:
fout.write(line)
if match.strip() == line.strip():
for string in strings:
fout.write(string + "\n")
fin.close()
fout.close()
# Append strings at the end of the file
def append(path, code):
pathBak = path + ".bak"
if os.path.exists(pathBak):
return
shutil.copy(path, pathBak)
with open(path, 'a') as f:
f.write(code)
# Prepend strings at the beginning of the file
def prepend(path, code):
pathBak = path + ".bak"
if os.path.exists(pathBak):
return
shutil.move(path, pathBak)
fin = open(pathBak, 'r')
fout = open(path, 'w')
fout.write(code)
fout.write(fin.read())
fout.close()
fin.close()
# Copy directory contents to another folder without overwriting files
def copytree(src, dst, symlinks=False, ignore=None):
if not os.path.exists(dst):
os.makedirs(dst)
for item in os.listdir(src):
s = os.path.join(src, item)
d = os.path.join(dst, item)
if os.path.isdir(s):
copytree(s, d, symlinks, ignore)
elif not os.path.exists(d):
shutil.copy2(s, d)
############
# Patching #
############
REPLACE_OBJECTS = """
import re, glob, shutil
path = 'qemu/*softmmu/**/*.o'
for d in xrange(5):
for f in glob.glob(path.replace('/**', '/*' * d)):
f = f.replace('\\\\', '/')
m = re.match(r'qemu\/([0-9A-Za-z_]+)\-softmmu.*', f)
shutil.move(f, f[:-2] + '-' + m.group(1) + '.o')
"""
PATCH_UNALIGNED_MEMACCESS = """
#define UNALIGNED_READ16_LE(addr) ( \\
((uint16_t)(*((uint8_t*)(addr) + 0)) << 0) | \\
((uint16_t)(*((uint8_t*)(addr) + 1)) << 8) \\
)
#define UNALIGNED_READ32_LE(addr) ( \\
((uint32_t)(*((uint8_t*)(addr) + 0)) << 0) | \\
((uint32_t)(*((uint8_t*)(addr) + 1)) << 8) | \\
((uint32_t)(*((uint8_t*)(addr) + 2)) << 16) | \\
((uint32_t)(*((uint8_t*)(addr) + 3)) << 24) \\
)
#define UNALIGNED_READ64_LE(addr) ( \\
((uint64_t)(*((uint8_t*)(addr) + 0)) << 0) | \\
((uint64_t)(*((uint8_t*)(addr) + 1)) << 8) | \\
((uint64_t)(*((uint8_t*)(addr) + 2)) << 16) | \\
((uint64_t)(*((uint8_t*)(addr) + 3)) << 24) | \\
((uint64_t)(*((uint8_t*)(addr) + 4)) << 32) | \\
((uint64_t)(*((uint8_t*)(addr) + 5)) << 40) | \\
((uint64_t)(*((uint8_t*)(addr) + 6)) << 48) | \\
((uint64_t)(*((uint8_t*)(addr) + 7)) << 56) \\
)
#define UNALIGNED_WRITE16_LE(addr, value) { \\
*((uint8_t*)(addr) + 0) = ((value) >> 0) & 0xFF; \\
*((uint8_t*)(addr) + 1) = ((value) >> 8) & 0xFF; \\
}
#define UNALIGNED_WRITE32_LE(addr, value) { \\
*((uint8_t*)(addr) + 0) = ((value) >> 0) & 0xFF; \\
*((uint8_t*)(addr) + 1) = ((value) >> 8) & 0xFF; \\
*((uint8_t*)(addr) + 2) = ((value) >> 16) & 0xFF; \\
*((uint8_t*)(addr) + 3) = ((value) >> 24) & 0xFF; \\
}
#define UNALIGNED_WRITE64_LE(addr, value) { \\
*((uint8_t*)(addr) + 0) = ((value) >> 0) & 0xFF; \\
*((uint8_t*)(addr) + 1) = ((value) >> 8) & 0xFF; \\
*((uint8_t*)(addr) + 2) = ((value) >> 16) & 0xFF; \\
*((uint8_t*)(addr) + 3) = ((value) >> 24) & 0xFF; \\
*((uint8_t*)(addr) + 4) = ((value) >> 32) & 0xFF; \\
*((uint8_t*)(addr) + 5) = ((value) >> 40) & 0xFF; \\
*((uint8_t*)(addr) + 6) = ((value) >> 48) & 0xFF; \\
*((uint8_t*)(addr) + 7) = ((value) >> 56) & 0xFF; \\
}
"""
PATCH_HELPER_ADAPTER_PROTO = """
#define GEN_ADAPTER_ARGS \\
uint32_t a1, uint32_t a2, uint32_t a3, uint32_t a4, uint32_t a5, \\
uint32_t a6, uint32_t a7, uint32_t a8, uint32_t a9, uint32_t a10
#define GEN_ADAPTER_DECLARE(name) \\
uint64_t glue(adapter_helper_, name)(GEN_ADAPTER_ARGS);
"""
PATCH_HELPER_ADAPTER_GEN = """
// Compile-time dispatch
#define CAT(a, ...) PRIMITIVE_CAT(a, __VA_ARGS__)
#define PRIMITIVE_CAT(a, ...) a ## __VA_ARGS__
#define IIF(c) PRIMITIVE_CAT(IIF_, c)
#define IIF_0(t, ...) __VA_ARGS__
#define IIF_1(t, ...) t
#define PROBE(x) x, 1
#define CHECK(...) CHECK_N(__VA_ARGS__, 0)
#define CHECK_N(x, n, ...) n
// Void type detection
#define VOID_TYPE_void ()
#define VOID_TYPE_noreturn ()
#define VOID_PROBE(type) VOID_PROBE_PROXY(VOID_TYPE_##type)
#define VOID_PROBE_PROXY(...) VOID_PROBE_PRIMITIVE(__VA_ARGS__)
#define VOID_PROBE_PRIMITIVE(x) VOID_PROBE_COMBINE_ x
#define VOID_PROBE_COMBINE_(...) PROBE(~)
#define IS_VOID(type) CHECK(VOID_PROBE(type))
// Global helper detection
#define GLOB_NAME_uc_tracecode ()
#define GLOB_NAME_div_i32 ()
#define GLOB_NAME_rem_i32 ()
#define GLOB_NAME_divu_i32 ()
#define GLOB_NAME_remu_i32 ()
#define GLOB_NAME_div_i64 ()
#define GLOB_NAME_rem_i64 ()
#define GLOB_NAME_divu_i64 ()
#define GLOB_NAME_remu_i64 ()
#define GLOB_NAME_shl_i64 ()
#define GLOB_NAME_shr_i64 ()
#define GLOB_NAME_sar_i64 ()
#define GLOB_NAME_mulsh_i64 ()
#define GLOB_NAME_muluh_i64 ()
#define GLOB_PROBE(name) GLOB_PROBE_PROXY(GLOB_NAME_##name)
#define GLOB_PROBE_PROXY(...) GLOB_PROBE_PRIMITIVE(__VA_ARGS__)
#define GLOB_PROBE_PRIMITIVE(x) GLOB_PROBE_COMBINE_ x
#define GLOB_PROBE_COMBINE_(...) PROBE(~)
#define IS_GLOB(name) CHECK(GLOB_PROBE(name))
// Arguments
#define A1 (a1 | ((uint64_t)a2 << 32))
#define A2 (a3 | ((uint64_t)a4 << 32))
#define A3 (a5 | ((uint64_t)a6 << 32))
#define A4 (a7 | ((uint64_t)a8 << 32))
#define A5 (a9 | ((uint64_t)a10 << 32))
#define GEN_ADAPTER_ARGS \\
uint32_t a1, uint32_t a2, uint32_t a3, uint32_t a4, uint32_t a5, \\
uint32_t a6, uint32_t a7, uint32_t a8, uint32_t a9, uint32_t a10
// Adapter definition
#define GEN_ADAPTER_0_VOID(name) \\
HELPER(name)(); return 0;
#define GEN_ADAPTER_0_NONVOID(name) \\
return HELPER(name)();
#define GEN_ADAPTER_0_DEFINE(name, ret) \\
uint64_t glue(adapter_helper_, name)(GEN_ADAPTER_ARGS) { \\
IIF(IS_VOID(ret)) (GEN_ADAPTER_0_VOID(name), GEN_ADAPTER_0_NONVOID(name)) \\
}
#define GEN_ADAPTER_1_VOID(name, t1) \\
HELPER(name)((dh_ctype(t1))A1); return 0;
#define GEN_ADAPTER_1_NONVOID(name, t1) \\
return HELPER(name)((dh_ctype(t1))A1);
#define GEN_ADAPTER_1_DEFINE(name, ret, t1) \\
uint64_t glue(adapter_helper_, name)(GEN_ADAPTER_ARGS) { \\
IIF(IS_VOID(ret)) (GEN_ADAPTER_1_VOID(name, t1), GEN_ADAPTER_1_NONVOID(name, t1)) \\
}
#define GEN_ADAPTER_2_VOID(name, t1, t2) \\
HELPER(name)((dh_ctype(t1))A1, (dh_ctype(t2))A2); return 0;
#define GEN_ADAPTER_2_NONVOID(name, t1, t2) \\
return HELPER(name)((dh_ctype(t1))A1, (dh_ctype(t2))A2);
#define GEN_ADAPTER_2_DEFINE(name, ret, t1, t2) \\
uint64_t glue(adapter_helper_, name)(GEN_ADAPTER_ARGS) { \\
IIF(IS_VOID(ret)) (GEN_ADAPTER_2_VOID(name, t1, t2), GEN_ADAPTER_2_NONVOID(name, t1, t2)) \\
}
#define GEN_ADAPTER_3_VOID(name, t1, t2, t3) \\
HELPER(name)((dh_ctype(t1))A1, (dh_ctype(t2))A2, (dh_ctype(t3))A3); return 0;
#define GEN_ADAPTER_3_NONVOID(name, t1, t2, t3) \\
return HELPER(name)((dh_ctype(t1))A1, (dh_ctype(t2))A2, (dh_ctype(t3))A3);
#define GEN_ADAPTER_3_DEFINE(name, ret, t1, t2, t3) \\
uint64_t glue(adapter_helper_, name)(GEN_ADAPTER_ARGS) { \\
IIF(IS_VOID(ret)) (GEN_ADAPTER_3_VOID(name, t1, t2, t3), GEN_ADAPTER_3_NONVOID(name, t1, t2, t3)) \\
}
#define GEN_ADAPTER_4_VOID(name, t1, t2, t3, t4) \\
HELPER(name)((dh_ctype(t1))A1, (dh_ctype(t2))A2, (dh_ctype(t3))A3, (dh_ctype(t4))A4); return 0;
#define GEN_ADAPTER_4_NONVOID(name, t1, t2, t3, t4) \\
return HELPER(name)((dh_ctype(t1))A1, (dh_ctype(t2))A2, (dh_ctype(t3))A3, (dh_ctype(t4))A4);
#define GEN_ADAPTER_4_DEFINE(name, ret, t1, t2, t3, t4) \\
uint64_t glue(adapter_helper_, name)(GEN_ADAPTER_ARGS) { \\
IIF(IS_VOID(ret)) (GEN_ADAPTER_4_VOID(name, t1, t2, t3, t4), GEN_ADAPTER_4_NONVOID(name, t1, t2, t3, t4)) \\
}
#define GEN_ADAPTER_5_VOID(name, t1, t2, t3, t4, t5) \\
HELPER(name)((dh_ctype(t1))A1, (dh_ctype(t2))A2, (dh_ctype(t3))A3, (dh_ctype(t4))A4, (dh_ctype(t5))A5); return 0;
#define GEN_ADAPTER_5_NONVOID(name, t1, t2, t3, t4, t5) \\
return HELPER(name)((dh_ctype(t1))A1, (dh_ctype(t2))A2, (dh_ctype(t3))A3, (dh_ctype(t4))A4, (dh_ctype(t5))A5);
#define GEN_ADAPTER_5_DEFINE(name, ret, t1, t2, t3, t4, t5) \\
uint64_t glue(adapter_helper_, name)(GEN_ADAPTER_ARGS) { \\
IIF(IS_VOID(ret)) (GEN_ADAPTER_5_VOID(name, t1, t2, t3, t4, t5), GEN_ADAPTER_5_NONVOID(name, t1, t2, t3, t4, t5)) \\
}
#define GEN_ADAPTER_BLANK
#ifdef GEN_ADAPTER_DEFINE
#define GEN_ADAPTER_0(name, ret) \\
IIF(IS_GLOB(name)) (GEN_ADAPTER_BLANK, GEN_ADAPTER_0_DEFINE(name, ret))
#define GEN_ADAPTER_1(name, ret, t1) \\
IIF(IS_GLOB(name)) (GEN_ADAPTER_BLANK, GEN_ADAPTER_1_DEFINE(name, ret, t1))
#define GEN_ADAPTER_2(name, ret, t1, t2) \\
IIF(IS_GLOB(name)) (GEN_ADAPTER_BLANK, GEN_ADAPTER_2_DEFINE(name, ret, t1, t2))
#define GEN_ADAPTER_3(name, ret, t1, t2, t3) \\
IIF(IS_GLOB(name)) (GEN_ADAPTER_BLANK, GEN_ADAPTER_3_DEFINE(name, ret, t1, t2, t3))
#define GEN_ADAPTER_4(name, ret, t1, t2, t3, t4) \\
IIF(IS_GLOB(name)) (GEN_ADAPTER_BLANK, GEN_ADAPTER_4_DEFINE(name, ret, t1, t2, t3, t4))
#define GEN_ADAPTER_5(name, ret, t1, t2, t3, t4, t5) \\
IIF(IS_GLOB(name)) (GEN_ADAPTER_BLANK, GEN_ADAPTER_5_DEFINE(name, ret, t1, t2, t3, t4, t5))
#else
#define GEN_ADAPTER_0(name, ret) GEN_ADAPTER_BLANK
#define GEN_ADAPTER_1(name, ret, t1) GEN_ADAPTER_BLANK
#define GEN_ADAPTER_2(name, ret, t1, t2) GEN_ADAPTER_BLANK
#define GEN_ADAPTER_3(name, ret, t1, t2, t3) GEN_ADAPTER_BLANK
#define GEN_ADAPTER_4(name, ret, t1, t2, t3, t4) GEN_ADAPTER_BLANK
#define GEN_ADAPTER_5(name, ret, t1, t2, t3, t4, t5) GEN_ADAPTER_BLANK
#endif
"""
def patchUnicornTCI():
"""
Patches Unicorn's QEMU fork to add the TCG Interpreter backend
"""
# Enable TCI
replace(os.path.join(UNICORN_QEMU_DIR, "configure"), {
"strip_opt=\"yes\"": "strip_opt=\"yes\"\ntcg_interpreter=\"yes\"",
"# XXX: suppress that": "if test \"$tcg_interpreter\" = \"yes\" ; then\n echo \"CONFIG_TCG_INTERPRETER=y\" >> $config_host_mak\nfi\n# XXX: suppress that",
"if test \"$ARCH\" = \"sparc64\" ; then": "if test \"$tcg_interpreter\" = \"yes\"; then\n QEMU_INCLUDES=\"-I\$(SRC_PATH)/tcg/tci $QEMU_INCLUDES\"\nelif test \"$ARCH\" = \"sparc64\" ; then"
})
# Add executable permissions for the new configure file
path = os.path.join(UNICORN_QEMU_DIR, "configure")
st = os.stat(path)
os.chmod(path, st.st_mode | stat.S_IEXEC)
# Copy missing TCI source files and patch them with Unicorn updates
copytree(ORIGINAL_QEMU_DIR, UNICORN_QEMU_DIR)
replace(os.path.join(UNICORN_QEMU_DIR, "tcg/tci/tcg-target.c"), {
"tcg_target_available_regs": "s->tcg_target_available_regs",
"tcg_target_call_clobber_regs": "s->tcg_target_call_clobber_regs",
"tcg_add_target_add_op_defs(": "tcg_add_target_add_op_defs(s, ",
})
replace(os.path.join(UNICORN_QEMU_DIR, "tcg/tci/tcg-target.h"), {
"#define tcg_qemu_tb_exec": "//#define tcg_qemu_tb_exec",
})
# Add TCI to Makefile.targets
insert(os.path.join(UNICORN_QEMU_DIR, "Makefile.target"),
"obj-y += tcg/tcg.o tcg/optimize.o", [
"obj-$(CONFIG_TCG_INTERPRETER) += tci.o"
]
)
# Add TCI symbols
insert(os.path.join(UNICORN_QEMU_DIR, "header_gen.py"),
"symbols = (", [
" 'tci_tb_ptr',",
" 'tcg_qemu_tb_exec',",
]
)
# Update platform headers with new symbols
cmd = "bash -c \"cd " + UNICORN_QEMU_DIR + " && ./gen_all_header.sh\""
os.system(cmd)
def patchUnicornJS():
"""
Patches Unicorn files to target JavaScript
"""
# Disable unnecessary options
replace(os.path.join(UNICORN_DIR, "config.mk"), {
"UNICORN_DEBUG ?= yes": "UNICORN_DEBUG ?= no",
"UNICORN_SHARED ?= yes": "UNICORN_SHARED ?= no",
})
# Ensure QEMU's object files have different base names
name = "rename_objects.py"
with open(os.path.join(UNICORN_DIR, name), "wt") as f:
f.write("")
replace(os.path.join(UNICORN_DIR, "Makefile"), {
"$(MAKE) -C qemu $(SMP_MFLAGS)":
"$(MAKE) -C qemu $(SMP_MFLAGS)\r\n\t@python " + name,
' ./configure --cc="${CC}" --extra-cflags="$(UNICORN_CFLAGS)" --target-list="$(UNICORN_TARGETS)" ${UNICORN_QEMU_FLAGS}':
' ./configure --cc="${CC}" --extra-cflags="$(UNICORN_CFLAGS)" --target-list="$(UNICORN_TARGETS)" ${UNICORN_QEMU_FLAGS} --disable-stack-protector --cpu=i386',
})
# Replace sigsetjmp/siglongjump with setjmp/longjmp
replace(os.path.join(UNICORN_QEMU_DIR, "cpu-exec.c"), {
"sigsetjmp(cpu->jmp_env, 0)": "setjmp(cpu->jmp_env)",
"siglongjmp(cpu->jmp_env, 1)": "longjmp(cpu->jmp_env, 1)",
})
# Fix Glib function pointer issues
replace(os.path.join(UNICORN_QEMU_DIR, "glib_compat.c"), {
"(GCompareDataFunc) compare_func) (l1->data, l2->data, user_data)":
"(GCompareFunc) compare_func) (l1->data, l2->data)",
})
# Fix QEMU function pointer issues
replace(os.path.join(UNICORN_QEMU_DIR, "include/exec/helper-proto.h"), {
# Adapter helpers
"#include <exec/helper-head.h>":
"#include <exec/helper-head.h>\n" + PATCH_HELPER_ADAPTER_PROTO,
# Declare adapters
"#define DEF_HELPER_FLAGS_0(name, flags, ret) \\":"""
#define DEF_HELPER_FLAGS_0(name, flags, ret) \\
GEN_ADAPTER_DECLARE(name) \\""",
"#define DEF_HELPER_FLAGS_1(name, flags, ret, t1) \\":"""
#define DEF_HELPER_FLAGS_1(name, flags, ret, t1) \\
GEN_ADAPTER_DECLARE(name) \\""",
"#define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2) \\":"""
#define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2) \\
GEN_ADAPTER_DECLARE(name) \\""",
"#define DEF_HELPER_FLAGS_3(name, flags, ret, t1, t2, t3) \\":"""
#define DEF_HELPER_FLAGS_3(name, flags, ret, t1, t2, t3) \\
GEN_ADAPTER_DECLARE(name) \\""",
"#define DEF_HELPER_FLAGS_4(name, flags, ret, t1, t2, t3, t4) \\":"""
#define DEF_HELPER_FLAGS_4(name, flags, ret, t1, t2, t3, t4) \\
GEN_ADAPTER_DECLARE(name) \\""",
"#define DEF_HELPER_FLAGS_5(name, flags, ret, t1, t2, t3, t4, t5) \\":"""
#define DEF_HELPER_FLAGS_5(name, flags, ret, t1, t2, t3, t4, t5) \\
GEN_ADAPTER_DECLARE(name) \\""",
})
replace(os.path.join(UNICORN_QEMU_DIR, "include/exec/helper-gen.h"), {
# Adapter helpers
"#include <exec/helper-head.h>":
"#include <exec/helper-head.h>\n" + PATCH_HELPER_ADAPTER_GEN,
# Generate calls to adapters instead
"tcg_gen_callN(tcg_ctx, HELPER(name)":
"tcg_gen_callN(tcg_ctx, glue(adapter_helper_, name)",
# Define adapters
"#define DEF_HELPER_FLAGS_0(name, flags, ret) \\":"""
#define DEF_HELPER_FLAGS_0(name, flags, ret) \\
GEN_ADAPTER_0(name, ret) \\""",
"#define DEF_HELPER_FLAGS_1(name, flags, ret, t1) \\":"""
#define DEF_HELPER_FLAGS_1(name, flags, ret, t1) \\
GEN_ADAPTER_1(name, ret, t1) \\""",
"#define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2) \\":"""
#define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2) \\
GEN_ADAPTER_2(name, ret, t1, t2) \\""",
"#define DEF_HELPER_FLAGS_3(name, flags, ret, t1, t2, t3) \\":"""
#define DEF_HELPER_FLAGS_3(name, flags, ret, t1, t2, t3) \\
GEN_ADAPTER_3(name, ret, t1, t2, t3) \\""",
"#define DEF_HELPER_FLAGS_4(name, flags, ret, t1, t2, t3, t4) \\":"""
#define DEF_HELPER_FLAGS_4(name, flags, ret, t1, t2, t3, t4) \\
GEN_ADAPTER_4(name, ret, t1, t2, t3, t4) \\""",
"#define DEF_HELPER_FLAGS_5(name, flags, ret, t1, t2, t3, t4, t5) \\":"""
#define DEF_HELPER_FLAGS_5(name, flags, ret, t1, t2, t3, t4, t5) \\
GEN_ADAPTER_5(name, ret, t1, t2, t3, t4, t5) \\""",
})
replace(os.path.join(UNICORN_QEMU_DIR, "tcg-runtime.c"), {
# Adapter helpers
'#include "exec/helper-head.h"':
'#include "exec/helper-head.h"\n' +
PATCH_HELPER_ADAPTER_GEN,
# Add uc_tracecode to globals
'#include "tcg-runtime.h"':"""
#undef DEF_HELPER_FLAGS_2
#define DEF_HELPER_FLAGS_2(name, flags, ret, t1, t2) \\
dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2)); \\
uint64_t glue(adapter_helper_, name)(GEN_ADAPTER_ARGS); \\
GEN_ADAPTER_2_DEFINE(name, ret, t1, t2)
#define DEF_HELPER_FLAGS_4(name, flags, ret, t1, t2, t3, t4) \\
dh_ctype(ret) HELPER(name) (dh_ctype(t1), dh_ctype(t2), dh_ctype(t3), dh_ctype(t4)); \\
uint64_t glue(adapter_helper_, name)(GEN_ADAPTER_ARGS); \\
GEN_ADAPTER_4_DEFINE(name, ret, t1, t2, t3, t4)
DEF_HELPER_4(uc_tracecode, void, i32, i32, ptr, i64)
#include "tcg-runtime.h"
""",
})
replace(os.path.join(UNICORN_QEMU_DIR, "include/exec/helper-tcg.h"), {
"HELPER(NAME)":
"glue(adapter_helper_, NAME)"
})
# Add arch-suffixes to adapters
header_gen_patched = False
with open(os.path.join(UNICORN_QEMU_DIR, "header_gen.py"), 'r') as f:
if 'adapter_' in f.read():
header_gen_patched = True
if header_gen_patched == False:
os.remove(os.path.join(UNICORN_QEMU_DIR, "header_gen.py.bak"))
replace(os.path.join(UNICORN_QEMU_DIR, "header_gen.py"), {
' print("#define %s %s_%s" %(s, s, arch))':
' print("#define %s %s_%s" %(s, s, arch))\n'
' if s.startswith("helper_"):\n'
' s = "adapter_" + s\n'
' print("#define %s %s_%s" %(s, s, arch))',
})
# Define adapters
translate_pat = os.path.join(UNICORN_QEMU_DIR, "target-*/translate.c")
for fpath in glob.glob(translate_pat):
prepend(fpath, '#define GEN_ADAPTER_DEFINE\n')
# Fix register allocation for arguments
replace(os.path.join(UNICORN_QEMU_DIR, "tcg/tcg.c"), {
"int is_64bit = ":
"int is_64bit = 1;//",
# Explicit casts of non-64bit arguments in tcg_gen_callN
"sizemask = info->sizemask;":"""
sizemask = info->sizemask;
for (i = 0; i < nargs; i++) {
int is_64bit = sizemask & (1 << (i+1)*2);
if (!is_64bit) {
TCGv_i64 ext_arg = tcg_temp_new_i64(s);
TCGv_i64 orig = MAKE_TCGV_I64(args[i]);
tcg_gen_ext32u_i64(s, ext_arg, orig);
args[i] = GET_TCGV_I64(ext_arg);
}
}
"""
})
# Fix unaligned reads
append(os.path.join(UNICORN_QEMU_DIR, "include/qemu-common.h"),
PATCH_UNALIGNED_MEMACCESS)
replace(os.path.join(UNICORN_QEMU_DIR, "include/exec/exec-all.h"), {
" *(uint32_t *)jmp_addr = addr - (jmp_addr + 4);":
" UNALIGNED_WRITE32_LE(jmp_addr, addr - (jmp_addr + 4));"
})
replace(os.path.join(UNICORN_QEMU_DIR, "tci.c"), {
"*(tcg_target_ulong *)(*tb_ptr)":
"UNALIGNED_READ32_LE(*tb_ptr)",
"*(uint32_t *)(*tb_ptr)":
"UNALIGNED_READ32_LE(*tb_ptr)",
"*(int32_t *)(*tb_ptr)":
"UNALIGNED_READ32_LE(*tb_ptr)",
"*(uint64_t *)tb_ptr":
"UNALIGNED_READ64_LE(tb_ptr)",
# Stores
"*(uint16_t *)(t1 + t2) = t0":
"UNALIGNED_WRITE16_LE(t1 + t2, t0)",
"*(uint32_t *)(t1 + t2) = t0":
"UNALIGNED_WRITE32_LE(t1 + t2, t0)",
"*(uint64_t *)(t1 + t2) = t0":
"UNALIGNED_WRITE64_LE(t1 + t2, t0)",
# Loads
"*(uint32_t *)(t1 + t2)":
"UNALIGNED_READ32_LE(t1 + t2)",
"*(uint64_t *)(t1 + t2)":
"UNALIGNED_READ64_LE(t1 + t2)",
"*(int32_t *)(t1 + t2)":
"(int32_t)UNALIGNED_READ32_LE(t1 + t2)",
})
# Fix unsupported varargs in uc_hook_add function signature
replace(os.path.join(UNICORN_DIR, "include/unicorn/unicorn.h"), {
" void *user_data, uint64_t begin, uint64_t end, ...);":
" void *user_data, uint64_t begin, uint64_t end, uint32_t extra);",
})
replace(os.path.join(UNICORN_DIR, "uc.c"), {
" err = uc_hook_add(uc, &uc->count_hook, UC_HOOK_CODE, hook_count_cb, NULL, 1, 0);":
" err = uc_hook_add(uc, &uc->count_hook, UC_HOOK_CODE, hook_count_cb, NULL, 1, 0, 0);",
" void *user_data, uint64_t begin, uint64_t end, ...)":
" void *user_data, uint64_t begin, uint64_t end, uint32_t extra)",
" va_list valist;":
" //va_list valist;",
" va_start(valist, end);":
" //va_start(valist, end);",
" hook->insn = va_arg(valist, int);":
" hook->insn = extra;",
" va_end(valist);":
" //va_end(valist);",
})
############
# Building #
############
def compileUnicorn(targets):
# Patching Unicorn's QEMU fork
patchUnicornTCI()
patchUnicornJS()
# Emscripten: Make
os.chdir('unicorn')
os.system('make clean')
if os.name == 'posix':
cmd = ''
if targets:
cmd += 'UNICORN_ARCHS="%s" ' % (' '.join(targets))
cmd += 'emmake make unicorn'
os.system(cmd)
os.chdir('..')
# Compile static library to JavaScript
methods = ['ccall', 'getValue', 'setValue', 'addFunction', 'removeFunction', 'writeArrayToMemory']
cmd = 'emcc'
cmd += ' -Os --memory-init-file 0'
cmd += ' unicorn/libunicorn.a'
cmd += ' -s EXPORTED_FUNCTIONS=\"[\''+ '\', \''.join(EXPORTED_FUNCTIONS) +'\']\"'
cmd += ' -s EXPORTED_RUNTIME_METHODS=\"[\''+ '\', \''.join(methods) +'\']\"'
cmd += ' -s RESERVED_FUNCTION_POINTERS=256'
cmd += ' -s ALLOW_TABLE_GROWTH=1'
cmd += ' -s ALLOW_MEMORY_GROWTH=1'
cmd += ' -s MODULARIZE=1'
cmd += ' -s WASM_ASYNC_COMPILATION=0'
cmd += ' -s WASM=0'
cmd += ' -s ENVIRONMENT="web"'
cmd += ' -s EXPORT_NAME="\'MUnicorn\'"'
if targets:
cmd += ' -o src/libunicorn-%s.out.js' % ('-'.join(targets))
else:
cmd += ' -o src/libunicorn.out.js'
os.system(cmd)
def exit_usage():
print("Usage: %s <action> [<targets>...]\n" % (sys.argv[0]))
print("List of actions:")
print(" - patch: Patch Unicorn only")
print(" - build: Patch Unicorn and build Unicorn.js")
exit(1)
if __name__ == "__main__":
# Initialize Unicorn submodule if necessary
if not os.listdir(UNICORN_DIR):
os.system("git submodule update --init")
# Compile Unicorn
if len(sys.argv) < 2:
exit_usage()
action = sys.argv[1]
if action == 'patch':
patchUnicornTCI()
patchUnicornJS()
elif action == 'build':
patchUnicornTCI()
patchUnicornJS()
targets = sorted(sys.argv[2:])
if os.name in ['posix']:
generateConstants()
compileUnicorn(targets)
else:
print("Your operating system is not supported by this script:")
print("Please, use Emscripten to compile Unicorn manually to src/libunicorn.out.js")
else:
exit_usage()