src/third_party/libdisasm/x86_imm.c - Issue 1821293002: Replace libdisasm with capstone

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Side by Side Diff: src/third_party/libdisasm/x86_imm.c

Issue 1821293002: Replace libdisasm with capstone Base URL: https://chromium.googlesource.com/breakpad/breakpad.git@master

Patch Set: Created 4 years, 9 months ago

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1 #include "qword.h"

2 #include "x86_imm.h"

3

4 #include <stdio.h>

5

6 unsigned int x86_imm_signsized( unsigned char * buf, size_t buf_len,

7 void *dest, unsigned int size ) {

8 signed char cp = (signed char ) dest;

9 signed short sp = (signed short ) dest;

10 int32_t lp = (int32_t ) dest;

11 qword_t qp = (qword_t ) dest;

12

13 if ( size > buf_len ) {

14 return 0;

15 }

16

17 /* Copy 'size' bytes from buf to op

18 * return number of bytes copied */

19 switch (size) {

20 case 1: /* BYTE */

21 cp = ((signed char *) buf);

22 break;

23 case 2: /* WORD */

24 sp = ((signed short *) buf);

25 break;

26 case 6:

27 case 8: /* QWORD */

28 qp = ((qword_t *) buf);

29 break;

30 case 4: /* DWORD */

31 default:

32 lp = ((int32_t *) buf);

33 break;

34 }

35 return (size);

36 }

37

38 unsigned int x86_imm_sized( unsigned char * buf, size_t buf_len, void *dest,

39 unsigned int size ) {

40 unsigned char cp = (unsigned char ) dest;

41 unsigned short sp = (unsigned short ) dest;

42 uint32_t lp = (uint32_t ) dest;

43 qword_t qp = (qword_t ) dest;

44

45 if ( size > buf_len ) {

46 return 0;

47 }

48

49 /* Copy 'size' bytes from buf to op

50 * return number of bytes copied */

51 switch (size) {

52 case 1: /* BYTE */

53 cp = ((unsigned char *) buf);

54 break;

55 case 2: /* WORD */

56 sp = ((unsigned short *) buf);

57 break;

58 case 6:

59 case 8: /* QWORD */

60 qp = ((qword_t *) buf);

61 break;

62 case 4: /* DWORD */

63 default:

64 lp = ((uint32_t *) buf);

65 break;

66 }

67

68 return (size);

69 }

70

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