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fit_image: Use calloc() to fix reproducibility issue
Vagrant Cascadian reported that mx6cuboxi target no longer builds reproducibility on Debian. One example of builds mismatches: 00096680: 696e 6700 736f 756e 642d 6461 6900 6465 ing.sound-dai.de -00096690: 7465 6374 2d67 7069 6f73 0000 tect-gpios.. +00096690: 7465 6374 2d67 7069 6f73 0061 tect-gpios.a This problem happens because all the buffers in fit_image.c are allocated via malloc(), which does not zero out the allocated buffer. Using calloc() fixes this unpredictable behaviour as it guarantees that the allocated buffer are zero initialized. Reported-by: Vagrant Cascadian <vagrant@reproducible-builds.org> Suggested-by: Tom Rini <trini@konsulko.com> Signed-off-by: Fabio Estevam <festevam@gmail.com> Tested-by: Vagrant Cascadian <vagrant@reproducible-builds.org>
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1 changed files with 4 additions and 4 deletions
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@ -388,7 +388,7 @@ static int fit_build(struct image_tool_params *params, const char *fname)
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size = fit_calc_size(params);
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if (size < 0)
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return -1;
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buf = malloc(size);
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buf = calloc(1, size);
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if (!buf) {
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fprintf(stderr, "%s: Out of memory (%d bytes)\n",
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params->cmdname, size);
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@ -467,7 +467,7 @@ static int fit_extract_data(struct image_tool_params *params, const char *fname)
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* Allocate space to hold the image data we will extract,
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* extral space allocate for image alignment to prevent overflow.
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*/
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buf = malloc(fit_size + (align_size * image_number));
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buf = calloc(1, fit_size + (align_size * image_number));
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if (!buf) {
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ret = -ENOMEM;
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goto err_munmap;
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@ -572,7 +572,7 @@ static int fit_import_data(struct image_tool_params *params, const char *fname)
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/* Allocate space to hold the new FIT */
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size = sbuf.st_size + 16384;
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fdt = malloc(size);
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fdt = calloc(1, size);
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if (!fdt) {
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fprintf(stderr, "%s: Failed to allocate memory (%d bytes)\n",
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__func__, size);
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@ -673,7 +673,7 @@ static int copyfile(const char *src, const char *dst)
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goto out;
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}
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buf = malloc(512);
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buf = calloc(1, 512);
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if (!buf) {
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printf("Can't allocate buffer to copy file\n");
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goto out;
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