firmware/include/utility.h - Issue 3173035: Make sure that our version of certain utility function implementations gets used in the firmware.

Side by Side Diff: firmware/include/utility.h

Issue 3173035: Make sure that our version of certain utility function implementations gets used in the firmware. (Closed) Base URL: http://src.chromium.org/git/vboot_reference.git

Patch Set: . Created 10 years, 4 months ago

Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.

Jump to:

View unified diff | Download patch

« no previous file with comments | « firmware/Makefile ('k') | firmware/lib/stateful_util.c » ('j') | no next file with comments »

OLD	NEW
1 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.	1 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.

2 * Use of this source code is governed by a BSD-style license that can be	2 * Use of this source code is governed by a BSD-style license that can be

3 * found in the LICENSE file.	3 * found in the LICENSE file.

4 */	4 */

5	5

6 /* Helper functions/wrappers for memory allocations, manipulation and	6 /* Helper functions/wrappers for memory allocations, manipulation and

7 * comparison.	7 * comparison.

8 */	8 */

9	9

10 #ifndef VBOOT_REFERENCE_UTILITY_H_	10 #ifndef VBOOT_REFERENCE_UTILITY_H_

(...skipping 36 matching lines...) Expand 10 before \| Expand all \| Expand 10 after Loading...
47	47

48 /* Compare [n] bytes in [src1] and [src2]	48 /* Compare [n] bytes in [src1] and [src2]

49 * Returns an integer less than, equal to, or greater than zero if the first [n]	49 * Returns an integer less than, equal to, or greater than zero if the first [n]

50 * bytes of [src1] is found, respectively, to be less than, to match, or be	50 * bytes of [src1] is found, respectively, to be less than, to match, or be

51 * greater than the first n bytes of [src2]. */	51 * greater than the first n bytes of [src2]. */

52 int Memcmp(const void* src1, const void* src2, size_t n);	52 int Memcmp(const void* src1, const void* src2, size_t n);

53	53

54 /* Copy [n] bytes from [src] to [dest]. */	54 /* Copy [n] bytes from [src] to [dest]. */

55 void* Memcpy(void* dest, const void* src, uint64_t n);	55 void* Memcpy(void* dest, const void* src, uint64_t n);

56	56

	57

	58 /* Implementations of the functions below must be built as part of the firmware

	59 * and defined in lib/utility.c */

	60

57 /* Set [n] bytes starting at [s] to [c]. */	61 /* Set [n] bytes starting at [s] to [c]. */

58 void* Memset(void *dest, const uint8_t c, uint64_t n);	62 void* Memset(void *dest, const uint8_t c, uint64_t n);

59	63

60 /* Compare [n] bytes starting at [s1] with [s2] and return 0 if they match,	64 /* Compare [n] bytes starting at [s1] with [s2] and return 0 if they match,

61 * 1 if they don't. Time taken to perform the comparison is only dependent on	65 * 1 if they don't. Time taken to perform the comparison is only dependent on

62 * [n] and not on the relationship of the match between [s1] and [s2].	66 * [n] and not on the relationship of the match between [s1] and [s2].

63 */	67 */

64 int SafeMemcmp(const void* s1, const void* s2, size_t n);	68 int SafeMemcmp(const void* s1, const void* s2, size_t n);

65	69

66 /* Ensure that only our stub implementations are used, not standard C */	70 /* Ensure that only our stub implementations are used, not standard C */

67 #ifndef _STUB_IMPLEMENTATION_	71 #ifndef _STUB_IMPLEMENTATION_

68 #define malloc _do_not_use_standard_malloc	72 #define malloc _do_not_use_standard_malloc

69 #define free _do_not_use_standard_free	73 #define free _do_not_use_standard_free

70 #define memcmp _do_not_use_standard_memcmp	74 #define memcmp _do_not_use_standard_memcmp

71 #define memcpy _do_not_use_standard_memcpy	75 #define memcpy _do_not_use_standard_memcpy

72 #define memset _do_not_use_standard_memset	76 #define memset _do_not_use_standard_memset

73 #endif	77 #endif

74	78

75

76 #endif /* VBOOT_REFERENCE_UTILITY_H_ */	79 #endif /* VBOOT_REFERENCE_UTILITY_H_ */

OLD	NEW