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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-x86_64/calling.h | |
download | kernel_samsung_smdk4412-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip kernel_samsung_smdk4412-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz kernel_samsung_smdk4412-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.bz2 |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-x86_64/calling.h')
-rw-r--r-- | include/asm-x86_64/calling.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/include/asm-x86_64/calling.h b/include/asm-x86_64/calling.h new file mode 100644 index 0000000..0bc1265 --- /dev/null +++ b/include/asm-x86_64/calling.h @@ -0,0 +1,156 @@ +/* + * Some macros to handle stack frames in assembly. + */ + +#include <linux/config.h> + +#define R15 0 +#define R14 8 +#define R13 16 +#define R12 24 +#define RBP 32 +#define RBX 40 +/* arguments: interrupts/non tracing syscalls only save upto here*/ +#define R11 48 +#define R10 56 +#define R9 64 +#define R8 72 +#define RAX 80 +#define RCX 88 +#define RDX 96 +#define RSI 104 +#define RDI 112 +#define ORIG_RAX 120 /* + error_code */ +/* end of arguments */ +/* cpu exception frame or undefined in case of fast syscall. */ +#define RIP 128 +#define CS 136 +#define EFLAGS 144 +#define RSP 152 +#define SS 160 +#define ARGOFFSET R11 +#define SWFRAME ORIG_RAX + + .macro SAVE_ARGS addskip=0,norcx=0,nor891011=0 + subq $9*8+\addskip,%rsp + CFI_ADJUST_CFA_OFFSET 9*8+\addskip + movq %rdi,8*8(%rsp) + CFI_REL_OFFSET rdi,8*8 + movq %rsi,7*8(%rsp) + CFI_REL_OFFSET rsi,7*8 + movq %rdx,6*8(%rsp) + CFI_REL_OFFSET rdx,6*8 + .if \norcx + .else + movq %rcx,5*8(%rsp) + CFI_REL_OFFSET rcx,5*8 + .endif + movq %rax,4*8(%rsp) + CFI_REL_OFFSET rax,4*8 + .if \nor891011 + .else + movq %r8,3*8(%rsp) + CFI_REL_OFFSET r8,3*8 + movq %r9,2*8(%rsp) + CFI_REL_OFFSET r9,2*8 + movq %r10,1*8(%rsp) + CFI_REL_OFFSET r10,1*8 + movq %r11,(%rsp) + CFI_REL_OFFSET r11,0*8 + .endif + .endm + +#define ARG_SKIP 9*8 + .macro RESTORE_ARGS skiprax=0,addskip=0,skiprcx=0,skipr11=0,skipr8910=0,skiprdx=0 + .if \skipr11 + .else + movq (%rsp),%r11 + .endif + .if \skipr8910 + .else + movq 1*8(%rsp),%r10 + movq 2*8(%rsp),%r9 + movq 3*8(%rsp),%r8 + .endif + .if \skiprax + .else + movq 4*8(%rsp),%rax + .endif + .if \skiprcx + .else + movq 5*8(%rsp),%rcx + .endif + .if \skiprdx + .else + movq 6*8(%rsp),%rdx + .endif + movq 7*8(%rsp),%rsi + movq 8*8(%rsp),%rdi + .if ARG_SKIP+\addskip > 0 + addq $ARG_SKIP+\addskip,%rsp + CFI_ADJUST_CFA_OFFSET -(ARG_SKIP+\addskip) + .endif + .endm + + .macro LOAD_ARGS offset + movq \offset(%rsp),%r11 + movq \offset+8(%rsp),%r10 + movq \offset+16(%rsp),%r9 + movq \offset+24(%rsp),%r8 + movq \offset+40(%rsp),%rcx + movq \offset+48(%rsp),%rdx + movq \offset+56(%rsp),%rsi + movq \offset+64(%rsp),%rdi + movq \offset+72(%rsp),%rax + .endm + +#define REST_SKIP 6*8 + .macro SAVE_REST + subq $REST_SKIP,%rsp + CFI_ADJUST_CFA_OFFSET REST_SKIP + movq %rbx,5*8(%rsp) + CFI_REL_OFFSET rbx,5*8 + movq %rbp,4*8(%rsp) + CFI_REL_OFFSET rbp,4*8 + movq %r12,3*8(%rsp) + CFI_REL_OFFSET r12,3*8 + movq %r13,2*8(%rsp) + CFI_REL_OFFSET r13,2*8 + movq %r14,1*8(%rsp) + CFI_REL_OFFSET r14,1*8 + movq %r15,(%rsp) + CFI_REL_OFFSET r15,0*8 + .endm + + .macro RESTORE_REST + movq (%rsp),%r15 + movq 1*8(%rsp),%r14 + movq 2*8(%rsp),%r13 + movq 3*8(%rsp),%r12 + movq 4*8(%rsp),%rbp + movq 5*8(%rsp),%rbx + addq $REST_SKIP,%rsp + CFI_ADJUST_CFA_OFFSET -(REST_SKIP) + .endm + + .macro SAVE_ALL + SAVE_ARGS + SAVE_REST + .endm + + .macro RESTORE_ALL addskip=0 + RESTORE_REST + RESTORE_ARGS 0,\addskip + .endm + + .macro icebp + .byte 0xf1 + .endm + +#ifdef CONFIG_FRAME_POINTER +#define ENTER enter +#define LEAVE leave +#else +#define ENTER +#define LEAVE +#endif |