tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef _ASM_X86_ASM_H
2#define _ASM_X86_ASM_H
3
4#ifdef __ASSEMBLY__
5# define __ASM_FORM(x) x
6# define __ASM_FORM_COMMA(x) x,
7#else
8# define __ASM_FORM(x) " " #x " "
9# define __ASM_FORM_COMMA(x) " " #x ","
10#endif
11
12#ifdef CONFIG_X86_32
13# define __ASM_SEL(a,b) __ASM_FORM(a)
14#else
15# define __ASM_SEL(a,b) __ASM_FORM(b)
16#endif
17
18#define __ASM_SIZE(inst, ...) __ASM_SEL(inst##l##__VA_ARGS__, \
19 inst##q##__VA_ARGS__)
20#define __ASM_REG(reg) __ASM_SEL(e##reg, r##reg)
21
22#define _ASM_PTR __ASM_SEL(.long, .quad)
23#define _ASM_ALIGN __ASM_SEL(.balign 4, .balign 8)
24
25#define _ASM_MOV __ASM_SIZE(mov)
26#define _ASM_INC __ASM_SIZE(inc)
27#define _ASM_DEC __ASM_SIZE(dec)
28#define _ASM_ADD __ASM_SIZE(add)
29#define _ASM_SUB __ASM_SIZE(sub)
30#define _ASM_XADD __ASM_SIZE(xadd)
31
32#define _ASM_AX __ASM_REG(ax)
33#define _ASM_BX __ASM_REG(bx)
34#define _ASM_CX __ASM_REG(cx)
35#define _ASM_DX __ASM_REG(dx)
36#define _ASM_SP __ASM_REG(sp)
37#define _ASM_BP __ASM_REG(bp)
38#define _ASM_SI __ASM_REG(si)
39#define _ASM_DI __ASM_REG(di)
40
41/* Exception table entry */
42#ifdef __ASSEMBLY__
43# define _ASM_EXTABLE(from,to) \
44 .pushsection "__ex_table","a" ; \
45 .balign 8 ; \
46 .long (from) - . ; \
47 .long (to) - . ; \
48 .popsection
49
50# define _ASM_EXTABLE_EX(from,to) \
51 .pushsection "__ex_table","a" ; \
52 .balign 8 ; \
53 .long (from) - . ; \
54 .long (to) - . + 0x7ffffff0 ; \
55 .popsection
56#else
57# define _ASM_EXTABLE(from,to) \
58 " .pushsection \"__ex_table\",\"a\"\n" \
59 " .balign 8\n" \
60 " .long (" #from ") - .\n" \
61 " .long (" #to ") - .\n" \
62 " .popsection\n"
63
64# define _ASM_EXTABLE_EX(from,to) \
65 " .pushsection \"__ex_table\",\"a\"\n" \
66 " .balign 8\n" \
67 " .long (" #from ") - .\n" \
68 " .long (" #to ") - . + 0x7ffffff0\n" \
69 " .popsection\n"
70#endif
71
72#endif /* _ASM_X86_ASM_H */