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Ignore:
Timestamp:
2008-03-15T10:22:07Z (14 years ago)
Author:
Josef Cejka <malyzelenyhnus@…>
Branches:
lfn, master
Children:
8476a8d
Parents:
baac911
Message:

Unified context handling code for amd64.

File:
1 edited

Legend:

Unmodified
Added
Removed
  • kernel/arch/amd64/include/context_offset.h

    rbaac911 r1dbfe98  
    3838#define OFFSET_R14 0x30
    3939#define OFFSET_R15 0x38
    40 #define OFFSET_IPL 0x40
     40
     41#ifdef KERNEL
     42# define OFFSET_IPL 0x40
     43#else
     44# define OFFSET_TLS 0x40
     45#endif
    4146
    4247#ifdef __ASM__
     
    4550# pc: return address
    4651.macro CONTEXT_SAVE_ARCH_CORE ctx:req pc:req
     52        movq \pc, OFFSET_PC(\ctx)
     53        movq %rsp, OFFSET_SP(\ctx)
     54       
     55        movq %rbx, OFFSET_RBX(\ctx)
     56        movq %rbp, OFFSET_RBP(\ctx)
     57        movq %r12, OFFSET_R12(\ctx)
     58        movq %r13, OFFSET_R13(\ctx)
     59        movq %r14, OFFSET_R14(\ctx)
     60        movq %r15, OFFSET_R15(\ctx)
    4761.endm
    4862
    4963# ctx: address of the structure with saved context
    5064.macro CONTEXT_RESTORE_ARCH_CORE ctx:req pc:req
     65        movq OFFSET_R15(\ctx), %r15
     66        movq OFFSET_R14(\ctx), %r14
     67        movq OFFSET_R13(\ctx), %r13
     68        movq OFFSET_R12(\ctx), %r12
     69        movq OFFSET_RBP(\ctx), %rbp
     70        movq OFFSET_RBX(\ctx), %rbx     
     71       
     72        movq OFFSET_SP(\ctx), %rsp   # ctx->sp -> %rsp
     73       
     74        movq OFFSET_PC(\ctx), \pc
    5175.endm
    5276
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