Script to detect use of stdlib function
Sylvain
Sam Lantinga
parent
937f5d0059
commit
70ccf34587
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#!/usr/bin/env python3
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#
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# Simple DirectMedia Layer
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# Copyright (C) 1997-2023 Sam Lantinga <slouken@libsdl.org>
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#
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# This software is provided 'as-is', without any express or implied
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# warranty. In no event will the authors be held liable for any damages
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# arising from the use of this software.
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#
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# Permission is granted to anyone to use this software for any purpose,
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# including commercial applications, and to alter it and redistribute it
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# freely, subject to the following restrictions:
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#
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# 1. The origin of this software must not be misrepresented; you must not
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# claim that you wrote the original software. If you use this software
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# in a product, an acknowledgment in the product documentation would be
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# appreciated but is not required.
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# 2. Altered source versions must be plainly marked as such, and must not be
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# misrepresented as being the original software.
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# 3. This notice may not be removed or altered from any source distribution.
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#
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# This script detects use of stdlib function in SDL code
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import argparse
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import os
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import pathlib
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import re
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import sys
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SDL_ROOT = pathlib.Path(__file__).resolve().parents[1]
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words = [
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'abs',
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'acos',
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'acosf',
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'asin',
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'asinf',
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'asprintf',
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'atan',
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'atan2',
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'atan2f',
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'atanf',
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'atof',
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'atoi',
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'calloc',
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'ceil',
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'ceilf',
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'copysign',
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'copysignf',
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'cos',
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'cosf',
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'crc32',
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'exp',
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'expf',
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'fabs',
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'fabsf',
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'floor',
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'floorf',
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'fmod',
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'fmodf',
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'free',
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'getenv',
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'isalnum',
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'isalpha',
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'isblank',
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'iscntrl',
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'isdigit',
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'isgraph',
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'islower',
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'isprint',
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'ispunct',
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'isspace',
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'isupper',
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'isxdigit',
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'itoa',
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'lltoa',
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'log10',
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'log10f',
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'logf',
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'lround',
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'lroundf',
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'ltoa',
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'malloc',
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'memcmp',
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'memcpy',
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'memcpy4',
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'memmove',
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'memset',
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'pow',
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'powf',
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'qsort',
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'realloc',
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'round',
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'roundf',
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'scalbn',
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'scalbnf',
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'setenv',
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'sin',
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'sinf',
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'snprintf',
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'sqrt',
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'sqrtf',
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'sscanf',
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'strcasecmp',
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'strchr',
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'strcmp',
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'strdup',
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'strlcat',
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'strlcpy',
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'strlen',
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'strlwr',
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'strncasecmp',
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'strncmp',
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'strrchr',
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'strrev',
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'strstr',
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'strtod',
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'strtokr',
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'strtol',
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'strtoll',
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'strtoul',
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'strupr',
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'tan',
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'tanf',
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'tolower',
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'toupper',
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'trunc',
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'truncf',
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'uitoa',
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'ulltoa',
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'ultoa',
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'utf8strlcpy',
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'utf8strlen',
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'vasprintf',
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'vsnprintf',
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'vsscanf',
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'wcscasecmp',
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'wcscmp',
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'wcsdup',
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'wcslcat',
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'wcslcpy',
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'wcslen',
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'wcsncasecmp',
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'wcsncmp',
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'wcsstr' ]
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reg_comment_remove_content = re.compile('\/\*.*\*/')
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reg_comment_remove_content2 = re.compile('".*"')
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reg_comment_remove_content3 = re.compile(':strlen')
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reg_comment_remove_content4 = re.compile('->free')
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def find_symbols_in_file(file, regex):
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allowed_extensions = [ ".c", ".cpp", ".m", ".h", ".hpp", ".cc" ]
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excluded_paths = [
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"src/stdlib",
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"src/libm",
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"src/hidapi",
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"src/video/khronos",
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"include/SDL3",
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"build-scripts/gen_audio_resampler_filter.c",
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"build-scripts/gen_audio_channel_conversion.c" ]
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filename = pathlib.Path(file)
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for ep in excluded_paths:
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if ep in filename.as_posix():
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# skip
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return
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if filename.suffix not in allowed_extensions:
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# skip
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return
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# print("Parse %s" % file)
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try:
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with file.open("r", encoding="UTF-8", newline="") as rfp:
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parsing_comment = False
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for l in rfp:
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l = l.strip()
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# Get the comment block /* ... */ across several lines
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match_start = "/*" in l
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match_end = "*/" in l
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if match_start and match_end:
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continue
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if match_start:
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parsing_comment = True
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continue
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if match_end:
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parsing_comment = False
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continue
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if parsing_comment:
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continue
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if regex.match(l):
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# free() allowed here
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if "This should NOT be SDL_free" in l:
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continue
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# double check
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# Remove one line comment /* ... */
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# eg: extern DECLSPEC SDL_hid_device * SDLCALL SDL_hid_open_path(const char *path, int bExclusive /* = false */);
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l = reg_comment_remove_content.sub('', l)
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# Remove strings " ... "
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l = reg_comment_remove_content2.sub('', l)
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# :strlen
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l = reg_comment_remove_content3.sub('', l)
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# ->free
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l = reg_comment_remove_content4.sub('', l)
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if regex.match(l):
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print("File %s" % filename)
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print(" %s" % l)
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print("")
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except UnicodeDecodeError:
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print("%s is not text, skipping" % file)
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except Exception as err:
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print("%s" % err)
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def find_symbols_in_dir(path, regex):
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for entry in path.glob("*"):
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if entry.is_dir():
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find_symbols_in_dir(entry, regex)
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else:
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find_symbols_in_file(entry, regex)
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def main():
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str = ".*\\b("
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for w in words:
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str += w + "|"
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str = str[:-1]
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str += ")\("
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regex = re.compile(str)
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find_symbols_in_dir(SDL_ROOT, regex)
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(fromfile_prefix_chars='@')
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args = parser.parse_args()
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try:
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main()
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except Exception as e:
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print(e)
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exit(-1)
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exit(0)
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