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general: cmake: add ZINT_SANITIZEM (clang -fsanitize=memory) option

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and suppress errors in lib and backend tests (pretty sure they're
  nearly all false positives apart from maybe 2 non-initializations
  in "gif.c" (`pOut` buffer) and "raster.c" (`rotated_pixbuf`)
github: install de_DE.UTF-8 locale in ubuntu-debug also
This commit is contained in:
gitlost 2025-02-19 01:15:58 +00:00
parent 33135fc146
commit c7cf006e71
38 changed files with 177 additions and 129 deletions
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6
backend/filemem.c
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@ -108,6 +108,9 @@ INTERNAL int fm_open(struct filemem *restrict const fmp, struct zint_symbol *sym
if (!(fmp->mem = (unsigned char *) malloc(FM_PAGE_SIZE))) {
return fm_seterr(fmp, ENOMEM);
}
#ifdef ZINT_SANITIZEM /* Suppress clang -fsanitize=memory false positive */
memset(fmp->mem, 0, FM_PAGE_SIZE);
#endif
fmp->memsize = FM_PAGE_SIZE;
if (symbol->memfile) {
free(symbol->memfile);
@ -160,6 +163,9 @@ static int fm_mem_expand(struct filemem *restrict const fmp, const size_t size)
fm_clear_mem(fmp);
return fm_seterr(fmp, new_size > 0x40000000 ? EINVAL : ENOMEM);
}
#ifdef ZINT_SANITIZEM /* Suppress clang -fsanitize=memory false positive */
memset(new_mem + fmp->memsize, 0, new_size - fmp->memsize);
#endif
fmp->mem = new_mem;
fmp->memsize = new_size;
return 1;