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[^:]+):[ \t]*#+[ \t]*(@"?(?P=func)"?| -- Begin function (?P=func))\n(?:\s*\.?Lfunc_begin[^:\n]*:\n)?' r'(?:\.L[^$]+\$local:\n)?' # drop .L$local: r'(?:[ \t]+.cfi_startproc\n|.seh_proc[^\n]+\n)?' # drop optional cfi r'(?P^##?[ \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[0-9a-zA-Z_]+):\n' # f: (name of function) r'\s+\.fnstart\n' # .fnstart r'(?P.*?)\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[^:]+):[ \t]*\/\/[ \t]*@"?(?P=func)"?( (Function|Tail Call))?\n' r'(?:[ \t]+.cfi_startproc\n)?' # drop optional cfi noise r'(?P.*?)\n' # This list is incomplete r'.Lfunc_end[0-9]+:\n', flags=(re.M | re.S)) ASM_FUNCTION_AMDGPU_RE = re.compile( r'^_?(?P[^:]+):[ \t]*;+[ \t]*@"?(?P=func)"?\n[^:]*?' r'(?P.*?)\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[^:]+):[ \t]*//[ \t]*@"?(?P=func)"?\n[^:]*?' r'(?P.*?)\n' # (body of the function) # This list is incomplete r'.Lfunc_end[0-9]+:\n', flags=(re.M | re.S)) ASM_FUNCTION_MIPS_RE = re.compile( r'^_?(?P[^:]+):[ \t]*#+[ \t]*@"?(?P=func)"?\n[^:]*?' # f: (name of func) r'(?:^[ \t]+\.(frame|f?mask|set).*?\n)+' # Mips+LLVM standard asm prologue r'(?P.*?)\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[^:]+):[ \t]*;+[ \t]*@"?(?P=func)"?\n[^:]*?' r'(?P.*?)\n' r'(\$|\.L)func_end[0-9]+:\n', # $func_end0: flags=(re.M | re.S)) ASM_FUNCTION_AVR_RE = re.compile( r'^_?(?P[^:]+):[ \t]*;+[ \t]*@"?(?P=func)"?\n[^:]*?' r'(?P.*?)\n' r'.Lfunc_end[0-9]+:\n', flags=(re.M | re.S)) ASM_FUNCTION_PPC_RE = re.compile( r'#[ \-\t]*Begin function (?P[^.:]+)\n' r'.*?' r'^[_.]?(?P=func):(?:[ \t]*#+[ \t]*@"?(?P=func)"?)?\n' r'(?:^[^#]*\n)*' r'(?P.*?)\n' # This list is incomplete r'(?:^[ \t]*(?:\.(?:long|quad|v?byte)[ \t]+[^\n]+)\n)*' r'(?:\.Lfunc_end|L\.\.(?P=func))[0-9]+:\n', flags=(re.M | re.S)) ASM_FUNCTION_RISCV_RE = re.compile( r'^_?(?P[^:]+):[ \t]*#+[ \t]*@"?(?P=func)"?\n' r'(?:\s*\.?L(?P=func)\$local:\n)?' # optional .L$local: due to -fno-semantic-interposition r'(?:\s*\.?Lfunc_begin[^:\n]*:\n)?[^:]*?' r'(?P^##?[ \t]+[^:]+:.*?)\s*' r'.Lfunc_end[0-9]+:\n', flags=(re.M | re.S)) ASM_FUNCTION_LANAI_RE = re.compile( r'^_?(?P[^:]+):[ \t]*!+[ \t]*@"?(?P=func)"?\n' r'(?:[ \t]+.cfi_startproc\n)?' # drop optional cfi noise r'(?P.*?)\s*' r'.Lfunc_end[0-9]+:\n', flags=(re.M | re.S)) ASM_FUNCTION_SPARC_RE = re.compile( r'^_?(?P[^:]+):[ \t]*!+[ \t]*@"?(?P=func)"?\n' r'(?P.*?)\s*' r'.Lfunc_end[0-9]+:\n', flags=(re.M | re.S)) ASM_FUNCTION_SYSTEMZ_RE = re.compile( r'^_?(?P[^:]+):[ \t]*#+[ \t]*@"?(?P=func)"?\n' r'[ \t]+.cfi_startproc\n' r'(?P.*?)\n' r'.Lfunc_end[0-9]+:\n', flags=(re.M | re.S)) ASM_FUNCTION_AARCH64_DARWIN_RE = re.compile( r'^_(?P[^:]+):[ \t]*;[ \t]@"?(?P=func)"?\n' r'([ \t]*.cfi_startproc\n[\s]*)?' r'(?P.*?)' 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[^ \t])[ \t]*@[ \t]--[ \t]Begin[ \t]function[ \t]"?(?P=func)"?' r'(?P.*?)' r'^_(?P=func):\n[ \t]*' r'(?P.*?)' r'^[ \t]*@[ \t]--[ \t]End[ \t]function', flags=(re.M | re.S )) ASM_FUNCTION_ARM_MACHO_RE = re.compile( r'^_(?P[^:]+):[ \t]*\n' r'([ \t]*.cfi_startproc\n[ \t]*)?' r'(?P.*?)\n' r'[ \t]*\.cfi_endproc\n', flags=(re.M | re.S)) ASM_FUNCTION_ARM_IOS_RE = re.compile( r'^_(?P[^:]+):[ \t]*\n' r'^Lfunc_begin(?P[0-9][1-9]*):\n' r'(?P.*?)' r'^Lfunc_end(?P=id):\n' r'^[ \t]*@[ \t]--[ \t]End[ \t]function', flags=(re.M | re.S)) ASM_FUNCTION_WASM32_RE = re.compile( r'^_?(?P[^:]+):[ \t]*#+[ \t]*@"?(?P=func)"?\n' r'(?P.*?)\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.*}}', 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_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), 'aarch64': (scrub_asm_arm_eabi, ASM_FUNCTION_AARCH64_RE), 'aarch64-apple-darwin': (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), 'thumbv7-apple-ios' : (scrub_asm_arm_eabi, ASM_FUNCTION_ARM_IOS_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)