diff options
Diffstat (limited to 'sys/amd64/include/asmacros.h')
| -rw-r--r-- | sys/amd64/include/asmacros.h | 60 |
1 files changed, 54 insertions, 6 deletions
diff --git a/sys/amd64/include/asmacros.h b/sys/amd64/include/asmacros.h index 7ca8c62..75d15ac 100644 --- a/sys/amd64/include/asmacros.h +++ b/sys/amd64/include/asmacros.h @@ -59,12 +59,6 @@ #define NON_GPROF_ENTRY(name) GEN_ENTRY(name) #define NON_GPROF_RET .byte 0xc3 /* opcode for `ret' */ -#ifdef LOCORE -#define PCPU(member) %gs:PC_ ## member -#define PCPU_ADDR(member, reg) movq %gs:PC_PRVSPACE,reg; \ - addq $PC_ ## member,reg -#endif - #ifdef GPROF /* * __mcount is like [.]mcount except that doesn't require its caller to set @@ -141,6 +135,60 @@ #define IDTVEC(name) ALIGN_TEXT; .globl __CONCAT(X,name); \ .type __CONCAT(X,name),@function; __CONCAT(X,name): +/* + * Macros to create and destroy a trap frame. + */ +#define PUSH_FRAME \ + subq $TF_RIP,%rsp ; /* skip dummy tf_err and tf_trapno */ \ + testb $SEL_RPL_MASK,TF_CS(%rsp) ; /* come from kernel? */ \ + jz 1f ; /* Yes, dont swapgs again */ \ + swapgs ; \ +1: movq %rdi,TF_RDI(%rsp) ; \ + movq %rsi,TF_RSI(%rsp) ; \ + movq %rdx,TF_RDX(%rsp) ; \ + movq %rcx,TF_RCX(%rsp) ; \ + movq %r8,TF_R8(%rsp) ; \ + movq %r9,TF_R9(%rsp) ; \ + movq %rax,TF_RAX(%rsp) ; \ + movq %rbx,TF_RBX(%rsp) ; \ + movq %rbp,TF_RBP(%rsp) ; \ + movq %r10,TF_R10(%rsp) ; \ + movq %r11,TF_R11(%rsp) ; \ + movq %r12,TF_R12(%rsp) ; \ + movq %r13,TF_R13(%rsp) ; \ + movq %r14,TF_R14(%rsp) ; \ + movq %r15,TF_R15(%rsp) + +#define POP_FRAME \ + movq TF_RDI(%rsp),%rdi ; \ + movq TF_RSI(%rsp),%rsi ; \ + movq TF_RDX(%rsp),%rdx ; \ + movq TF_RCX(%rsp),%rcx ; \ + movq TF_R8(%rsp),%r8 ; \ + movq TF_R9(%rsp),%r9 ; \ + movq TF_RAX(%rsp),%rax ; \ + movq TF_RBX(%rsp),%rbx ; \ + movq TF_RBP(%rsp),%rbp ; \ + movq TF_R10(%rsp),%r10 ; \ + movq TF_R11(%rsp),%r11 ; \ + movq TF_R12(%rsp),%r12 ; \ + movq TF_R13(%rsp),%r13 ; \ + movq TF_R14(%rsp),%r14 ; \ + movq TF_R15(%rsp),%r15 ; \ + testb $SEL_RPL_MASK,TF_CS(%rsp) ; /* come from kernel? */ \ + jz 1f ; /* keep kernel GS.base */ \ + cli ; \ + swapgs ; \ +1: addq $TF_RIP,%rsp /* skip over tf_err, tf_trapno */ + +/* + * Access per-CPU data. + */ +#define PCPU(member) %gs:PC_ ## member +#define PCPU_ADDR(member, reg) \ + movq %gs:PC_PRVSPACE, reg ; \ + addq $PC_ ## member, reg + #endif /* LOCORE */ #endif /* !_MACHINE_ASMACROS_H_ */ |
