| from __future__ import print_function |
| import re |
| import sys |
| |
| from . import common |
| |
| if sys.version_info[0] > 2: |
| class string: |
| expandtabs = str.expandtabs |
| else: |
| import string |
| |
| # RegEx: this is where the magic happens. |
| |
| ##### Assembly parser |
| |
| ASM_FUNCTION_X86_RE = re.compile( |
| r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*(@"?(?P=func)"?| -- Begin function (?P=func))\n(?:\s*\.?Lfunc_begin[^:\n]*:\n)?' |
| r'(?:\.L[^$]+\$local:\n)?' # drop .L<func>$local: |
| r'(?:[ \t]+.cfi_startproc\n|.seh_proc[^\n]+\n)?' # drop optional cfi |
| r'(?P<body>^##?[ \t]+[^:]+:.*?)\s*' |
| r'^\s*(?:[^:\n]+?:\s*\n\s*\.size|\.cfi_endproc|\.globl|\.comm|\.(?:sub)?section|#+ -- End function)', |
| flags=(re.M | re.S)) |
| |
| ASM_FUNCTION_ARM_RE = re.compile( |
| r'^(?P<func>[0-9a-zA-Z_]+):\n' # f: (name of function) |
| r'\s+\.fnstart\n' # .fnstart |
| r'(?P<body>.*?)\n' # (body of the function) |
| r'.Lfunc_end[0-9]+:', # .Lfunc_end0: or # -- End function |
| flags=(re.M | re.S)) |
| |
| ASM_FUNCTION_AARCH64_RE = re.compile( |
| r'^_?(?P<func>[^:]+):[ \t]*\/\/[ \t]*@"?(?P=func)"?( (Function|Tail Call))?\n' |
| r'(?:[ \t]+.cfi_startproc\n)?' # drop optional cfi noise |
| r'(?P<body>.*?)\n' |
| # This list is incomplete |
| r'.Lfunc_end[0-9]+:\n', |
| flags=(re.M | re.S)) |
| |
| ASM_FUNCTION_AMDGPU_RE = re.compile( |
| r'^_?(?P<func>[^:]+):[ \t]*;+[ \t]*@"?(?P=func)"?\n[^:]*?' |
| r'(?P<body>.*?)\n' # (body of the function) |
| # This list is incomplete |
| r'^\s*(\.Lfunc_end[0-9]+:\n|\.section)', |
| flags=(re.M | re.S)) |
| |
| ASM_FUNCTION_HEXAGON_RE = re.compile( |
| r'^_?(?P<func>[^:]+):[ \t]*//[ \t]*@"?(?P=func)"?\n[^:]*?' |
| r'(?P<body>.*?)\n' # (body of the function) |
| # This list is incomplete |
| r'.Lfunc_end[0-9]+:\n', |
| flags=(re.M | re.S)) |
| |
| ASM_FUNCTION_M68K_RE = re.compile( |
| r'^_?(?P<func>[^:]+):[ \t]*;[ \t]*@"?(?P=func)"?\n' |
| r'(?P<body>.*?)\s*' # (body of the function) |
| r'.Lfunc_end[0-9]+:\n', |
| flags=(re.M | re.S)) |
| |
| ASM_FUNCTION_MIPS_RE = re.compile( |
| r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@"?(?P=func)"?\n[^:]*?' # f: (name of func) |
| r'(?:\s*\.?Ltmp[^:\n]*:\n)?[^:]*?' # optional .Ltmp<N> for EH |
| r'(?:^[ \t]+\.(frame|f?mask|set).*?\n)+' # Mips+LLVM standard asm prologue |
| r'(?P<body>.*?)\n' # (body of the function) |
| # Mips+LLVM standard asm epilogue |
| r'(?:(^[ \t]+\.set[^\n]*?\n)*^[ \t]+\.end.*?\n)' |
| r'(\$|\.L)func_end[0-9]+:\n', # $func_end0: (mips32 - O32) or |
| # .Lfunc_end0: (mips64 - NewABI) |
| flags=(re.M | re.S)) |
| |
| ASM_FUNCTION_MSP430_RE = re.compile( |
| r'^_?(?P<func>[^:]+):[ \t]*;+[ \t]*@"?(?P=func)"?\n[^:]*?' |
| r'(?P<body>.*?)\n' |
| r'(\$|\.L)func_end[0-9]+:\n', # $func_end0: |
| flags=(re.M | re.S)) |
| |
| ASM_FUNCTION_AVR_RE = re.compile( |
| r'^_?(?P<func>[^:]+):[ \t]*;+[ \t]*@"?(?P=func)"?\n[^:]*?' |
| r'(?P<body>.*?)\n' |
| r'.Lfunc_end[0-9]+:\n', |
| flags=(re.M | re.S)) |
| |
| ASM_FUNCTION_PPC_RE = re.compile( |
| r'#[ \-\t]*Begin function (?P<func>[^.:]+)\n' |
| r'.*?' |
| r'^[_.]?(?P=func):(?:[ \t]*#+[ \t]*@"?(?P=func)"?)?\n' |
| r'(?:^[^#]*\n)*' |
| r'(?P<body>.*?)\n' |
| # This list is incomplete |
| r'(?:^[ \t]*(?:\.(?:long|quad|v?byte)[ \t]+[^\n]+)\n)*' |
| r'(?:\.Lfunc_end|L\.\.(?P=func))[0-9]+:\n', |
| flags=(re.M | re.S)) |
| |
| ASM_FUNCTION_RISCV_RE = re.compile( |
| r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@"?(?P=func)"?\n' |
| r'(?:\s*\.?L(?P=func)\$local:\n)?' # optional .L<func>$local: due to -fno-semantic-interposition |
| r'(?:\s*\.?Lfunc_begin[^:\n]*:\n)?[^:]*?' |
| r'(?P<body>^##?[ \t]+[^:]+:.*?)\s*' |
| r'.Lfunc_end[0-9]+:\n', |
| flags=(re.M | re.S)) |
| |
| ASM_FUNCTION_LANAI_RE = re.compile( |
| r'^_?(?P<func>[^:]+):[ \t]*!+[ \t]*@"?(?P=func)"?\n' |
| r'(?:[ \t]+.cfi_startproc\n)?' # drop optional cfi noise |
| r'(?P<body>.*?)\s*' |
| r'.Lfunc_end[0-9]+:\n', |
| flags=(re.M | re.S)) |
| |
| ASM_FUNCTION_SPARC_RE = re.compile( |
| r'^_?(?P<func>[^:]+):[ \t]*!+[ \t]*@"?(?P=func)"?\n' |
| r'(?P<body>.*?)\s*' |
| r'.Lfunc_end[0-9]+:\n', |
| flags=(re.M | re.S)) |
| |
| ASM_FUNCTION_SYSTEMZ_RE = re.compile( |
| r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@"?(?P=func)"?\n' |
| r'[ \t]+.cfi_startproc\n' |
| r'(?P<body>.*?)\n' |
| r'.Lfunc_end[0-9]+:\n', |
| flags=(re.M | re.S)) |
| |
| ASM_FUNCTION_AARCH64_DARWIN_RE = re.compile( |
| r'^_(?P<func>[^:]+):[ \t]*;[ \t]@"?(?P=func)"?\n' |
| r'([ \t]*.cfi_startproc\n[\s]*)?' |
| r'(?P<body>.*?)' |
| r'([ \t]*.cfi_endproc\n[\s]*)?' |
| r'^[ \t]*;[ \t]--[ \t]End[ \t]function', |
| flags=(re.M | re.S)) |
| |
| ASM_FUNCTION_ARM_DARWIN_RE = re.compile( |
| r'^[ \t]*\.globl[ \t]*_(?P<func>[^ \t])[ \t]*@[ \t]--[ \t]Begin[ \t]function[ \t]"?(?P=func)"?' |
| r'(?P<directives>.*?)' |
| r'^_(?P=func):\n[ \t]*' |
| r'(?P<body>.*?)' |
| r'^[ \t]*@[ \t]--[ \t]End[ \t]function', |
| flags=(re.M | re.S )) |
| |
| ASM_FUNCTION_ARM_MACHO_RE = re.compile( |
| r'^_(?P<func>[^:]+):[ \t]*\n' |
| r'([ \t]*.cfi_startproc\n[ \t]*)?' |
| r'(?P<body>.*?)\n' |
| r'[ \t]*\.cfi_endproc\n', |
| flags=(re.M | re.S)) |
| |
| ASM_FUNCTION_THUMBS_DARWIN_RE = re.compile( |
| r'^_(?P<func>[^:]+):\n' |
| r'(?P<body>.*?)\n' |
| r'[ \t]*\.data_region\n', |
| flags=(re.M | re.S)) |
| |
| ASM_FUNCTION_THUMB_DARWIN_RE = re.compile( |
| r'^_(?P<func>[^:]+):\n' |
| r'(?P<body>.*?)\n' |
| r'^[ \t]*@[ \t]--[ \t]End[ \t]function', |
| flags=(re.M | re.S)) |
| |
| ASM_FUNCTION_ARM_IOS_RE = re.compile( |
| r'^_(?P<func>[^:]+):\n' |
| r'(?P<body>.*?)' |
| r'^[ \t]*@[ \t]--[ \t]End[ \t]function', |
| flags=(re.M | re.S)) |
| |
| ASM_FUNCTION_WASM32_RE = re.compile( |
| r'^_?(?P<func>[^:]+):[ \t]*#+[ \t]*@"?(?P=func)"?\n' |
| r'(?P<body>.*?)\n' |
| r'^\s*(\.Lfunc_end[0-9]+:\n|end_function)', |
| flags=(re.M | re.S)) |
| |
| SCRUB_X86_SHUFFLES_RE = ( |
| re.compile( |
| r'^(\s*\w+) [^#\n]+#+ ((?:[xyz]mm\d+|mem)( \{%k\d+\}( \{z\})?)? = .*)$', |
| flags=re.M)) |
| |
| SCRUB_X86_SHUFFLES_NO_MEM_RE = ( |
| re.compile( |
| r'^(\s*\w+) [^#\n]+#+ ((?:[xyz]mm\d+|mem)( \{%k\d+\}( \{z\})?)? = (?!.*(?:mem)).*)$', |
| flags=re.M)) |
| |
| SCRUB_X86_SPILL_RELOAD_RE = ( |
| re.compile( |
| r'-?\d+\(%([er])[sb]p\)(.*(?:Spill|Reload))$', |
| flags=re.M)) |
| SCRUB_X86_SP_RE = re.compile(r'\d+\(%(esp|rsp)\)') |
| SCRUB_X86_RIP_RE = re.compile(r'[.\w]+\(%rip\)') |
| SCRUB_X86_LCP_RE = re.compile(r'\.?LCPI[0-9]+_[0-9]+') |
| SCRUB_X86_RET_RE = re.compile(r'ret[l|q]') |
| |
| def scrub_asm_x86(asm, args): |
| # Scrub runs of whitespace out of the assembly, but leave the leading |
| # whitespace in place. |
| asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm) |
| # Expand the tabs used for indentation. |
| asm = string.expandtabs(asm, 2) |
| |
| # Detect shuffle asm comments and hide the operands in favor of the comments. |
| if getattr(args, 'no_x86_scrub_mem_shuffle', True): |
| asm = SCRUB_X86_SHUFFLES_NO_MEM_RE.sub(r'\1 {{.*#+}} \2', asm) |
| else: |
| asm = SCRUB_X86_SHUFFLES_RE.sub(r'\1 {{.*#+}} \2', asm) |
| |
| # Detect stack spills and reloads and hide their exact offset and whether |
| # they used the stack pointer or frame pointer. |
| asm = SCRUB_X86_SPILL_RELOAD_RE.sub(r'{{[-0-9]+}}(%\1{{[sb]}}p)\2', asm) |
| if getattr(args, 'x86_scrub_sp', True): |
| # Generically match the stack offset of a memory operand. |
| asm = SCRUB_X86_SP_RE.sub(r'{{[0-9]+}}(%\1)', asm) |
| if getattr(args, 'x86_scrub_rip', False): |
| # Generically match a RIP-relative memory operand. |
| asm = SCRUB_X86_RIP_RE.sub(r'{{.*}}(%rip)', asm) |
| # Generically match a LCP symbol. |
| asm = SCRUB_X86_LCP_RE.sub(r'{{\.?LCPI[0-9]+_[0-9]+}}', asm) |
| if getattr(args, 'extra_scrub', False): |
| # Avoid generating different checks for 32- and 64-bit because of 'retl' vs 'retq'. |
| asm = SCRUB_X86_RET_RE.sub(r'ret{{[l|q]}}', asm) |
| # Strip kill operands inserted into the asm. |
| asm = common.SCRUB_KILL_COMMENT_RE.sub('', asm) |
| # Strip trailing whitespace. |
| asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm) |
| return asm |
| |
| def scrub_asm_amdgpu(asm, args): |
| # Scrub runs of whitespace out of the assembly, but leave the leading |
| # whitespace in place. |
| asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm) |
| # Expand the tabs used for indentation. |
| asm = string.expandtabs(asm, 2) |
| # Strip trailing whitespace. |
| asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm) |
| return asm |
| |
| def scrub_asm_arm_eabi(asm, args): |
| # Scrub runs of whitespace out of the assembly, but leave the leading |
| # whitespace in place. |
| asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm) |
| # Expand the tabs used for indentation. |
| asm = string.expandtabs(asm, 2) |
| # Strip kill operands inserted into the asm. |
| asm = common.SCRUB_KILL_COMMENT_RE.sub('', asm) |
| # Strip trailing whitespace. |
| asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm) |
| return asm |
| |
| def scrub_asm_hexagon(asm, args): |
| # Scrub runs of whitespace out of the assembly, but leave the leading |
| # whitespace in place. |
| asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm) |
| # Expand the tabs used for indentation. |
| asm = string.expandtabs(asm, 2) |
| # Strip trailing whitespace. |
| asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm) |
| return asm |
| |
| def scrub_asm_powerpc(asm, args): |
| # Scrub runs of whitespace out of the assembly, but leave the leading |
| # whitespace in place. |
| asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm) |
| # Expand the tabs used for indentation. |
| asm = string.expandtabs(asm, 2) |
| # Strip unimportant comments, but leave the token '#' in place. |
| asm = common.SCRUB_LOOP_COMMENT_RE.sub(r'#', asm) |
| # Strip trailing whitespace. |
| asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm) |
| # Strip the tailing token '#', except the line only has token '#'. |
| asm = common.SCRUB_TAILING_COMMENT_TOKEN_RE.sub(r'', asm) |
| return asm |
| |
| def scrub_asm_m68k(asm, args): |
| # Scrub runs of whitespace out of the assembly, but leave the leading |
| # whitespace in place. |
| asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm) |
| # Expand the tabs used for indentation. |
| asm = string.expandtabs(asm, 2) |
| # Strip trailing whitespace. |
| asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm) |
| return asm |
| |
| def scrub_asm_mips(asm, args): |
| # Scrub runs of whitespace out of the assembly, but leave the leading |
| # whitespace in place. |
| asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm) |
| # Expand the tabs used for indentation. |
| asm = string.expandtabs(asm, 2) |
| # Strip trailing whitespace. |
| asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm) |
| return asm |
| |
| def scrub_asm_msp430(asm, args): |
| # Scrub runs of whitespace out of the assembly, but leave the leading |
| # whitespace in place. |
| asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm) |
| # Expand the tabs used for indentation. |
| asm = string.expandtabs(asm, 2) |
| # Strip trailing whitespace. |
| asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm) |
| return asm |
| |
| def scrub_asm_avr(asm, args): |
| # Scrub runs of whitespace out of the assembly, but leave the leading |
| # whitespace in place. |
| asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm) |
| # Expand the tabs used for indentation. |
| asm = string.expandtabs(asm, 2) |
| # Strip trailing whitespace. |
| asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm) |
| return asm |
| |
| def scrub_asm_riscv(asm, args): |
| # Scrub runs of whitespace out of the assembly, but leave the leading |
| # whitespace in place. |
| asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm) |
| # Expand the tabs used for indentation. |
| asm = string.expandtabs(asm, 2) |
| # Strip trailing whitespace. |
| asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm) |
| return asm |
| |
| def scrub_asm_lanai(asm, args): |
| # Scrub runs of whitespace out of the assembly, but leave the leading |
| # whitespace in place. |
| asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm) |
| # Expand the tabs used for indentation. |
| asm = string.expandtabs(asm, 2) |
| # Strip trailing whitespace. |
| asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm) |
| return asm |
| |
| def scrub_asm_sparc(asm, args): |
| # Scrub runs of whitespace out of the assembly, but leave the leading |
| # whitespace in place. |
| asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm) |
| # Expand the tabs used for indentation. |
| asm = string.expandtabs(asm, 2) |
| # Strip trailing whitespace. |
| asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm) |
| return asm |
| |
| def scrub_asm_systemz(asm, args): |
| # Scrub runs of whitespace out of the assembly, but leave the leading |
| # whitespace in place. |
| asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm) |
| # Expand the tabs used for indentation. |
| asm = string.expandtabs(asm, 2) |
| # Strip trailing whitespace. |
| asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm) |
| return asm |
| |
| def scrub_asm_wasm32(asm, args): |
| # Scrub runs of whitespace out of the assembly, but leave the leading |
| # whitespace in place. |
| asm = common.SCRUB_WHITESPACE_RE.sub(r' ', asm) |
| # Expand the tabs used for indentation. |
| asm = string.expandtabs(asm, 2) |
| # Strip trailing whitespace. |
| asm = common.SCRUB_TRAILING_WHITESPACE_RE.sub(r'', asm) |
| return asm |
| |
| def get_triple_from_march(march): |
| triples = { |
| 'amdgcn': 'amdgcn', |
| 'r600': 'r600', |
| 'mips': 'mips', |
| 'sparc': 'sparc', |
| 'hexagon': 'hexagon', |
| } |
| for prefix, triple in triples.items(): |
| if march.startswith(prefix): |
| return triple |
| print("Cannot find a triple. Assume 'x86'", file=sys.stderr) |
| return 'x86' |
| |
| def get_run_handler(triple): |
| target_handlers = { |
| 'i686': (scrub_asm_x86, ASM_FUNCTION_X86_RE), |
| 'x86': (scrub_asm_x86, ASM_FUNCTION_X86_RE), |
| 'i386': (scrub_asm_x86, ASM_FUNCTION_X86_RE), |
| 'arm64_32-apple-ios': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_DARWIN_RE), |
| 'aarch64': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_RE), |
| 'aarch64-apple-darwin': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_DARWIN_RE), |
| 'aarch64-apple-ios': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_DARWIN_RE), |
| 'hexagon': (scrub_asm_hexagon, ASM_FUNCTION_HEXAGON_RE), |
| 'r600': (scrub_asm_amdgpu, ASM_FUNCTION_AMDGPU_RE), |
| 'amdgcn': (scrub_asm_amdgpu, ASM_FUNCTION_AMDGPU_RE), |
| 'arm': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE), |
| 'arm64': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_RE), |
| 'arm64e': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_DARWIN_RE), |
| 'arm64-apple-ios': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_DARWIN_RE), |
| 'armv7-apple-ios' : (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_IOS_RE), |
| 'armv7-apple-darwin': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_DARWIN_RE), |
| 'thumb': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_RE), |
| 'thumb-macho': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_MACHO_RE), |
| 'thumbv5-macho': (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_MACHO_RE), |
| 'thumbv7s-apple-darwin' : (scrub_asm_arm_eabi, ASM_FUNCTION_THUMBS_DARWIN_RE), |
| 'thumbv7-apple-darwin' : (scrub_asm_arm_eabi, ASM_FUNCTION_THUMB_DARWIN_RE), |
| 'thumbv7-apple-ios' : (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_IOS_RE), |
| 'm68k': (scrub_asm_m68k, ASM_FUNCTION_M68K_RE), |
| 'mips': (scrub_asm_mips, ASM_FUNCTION_MIPS_RE), |
| 'msp430': (scrub_asm_msp430, ASM_FUNCTION_MSP430_RE), |
| 'avr': (scrub_asm_avr, ASM_FUNCTION_AVR_RE), |
| 'ppc32': (scrub_asm_powerpc, ASM_FUNCTION_PPC_RE), |
| 'powerpc': (scrub_asm_powerpc, ASM_FUNCTION_PPC_RE), |
| 'riscv32': (scrub_asm_riscv, ASM_FUNCTION_RISCV_RE), |
| 'riscv64': (scrub_asm_riscv, ASM_FUNCTION_RISCV_RE), |
| 'lanai': (scrub_asm_lanai, ASM_FUNCTION_LANAI_RE), |
| 'sparc': (scrub_asm_sparc, ASM_FUNCTION_SPARC_RE), |
| 's390x': (scrub_asm_systemz, ASM_FUNCTION_SYSTEMZ_RE), |
| 'wasm32': (scrub_asm_wasm32, ASM_FUNCTION_WASM32_RE), |
| } |
| handler = None |
| best_prefix = '' |
| for prefix, s in target_handlers.items(): |
| if triple.startswith(prefix) and len(prefix) > len(best_prefix): |
| handler = s |
| best_prefix = prefix |
| |
| if handler is None: |
| raise KeyError('Triple %r is not supported' % (triple)) |
| |
| return handler |
| |
| ##### Generator of assembly CHECK lines |
| |
| def add_asm_checks(output_lines, comment_marker, prefix_list, func_dict, func_name): |
| # Label format is based on ASM string. |
| check_label_format = '{} %s-LABEL: %s%s:'.format(comment_marker) |
| global_vars_seen_dict = {} |
| common.add_checks(output_lines, comment_marker, prefix_list, func_dict, func_name, check_label_format, True, False, global_vars_seen_dict) |
