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Viewing changes to kernel/arch/amd64/src/debug/stacktrace.c

  • Committer: Jakub Jermar
  • Date: 2011-04-13 14:45:41 UTC
  • mfrom: (527.1.397 main-clone)
  • Revision ID: jakub@jermar.eu-20110413144541-x0j3r1zxqhsljx1o
Merge mainline changes.

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Lines of Context:
kernel/arch/amd64/src/debug/stacktrace.c
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#define FRAME_OFFSET_FP_PREV  0
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#define FRAME_OFFSET_RA       1
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bool kernel_frame_pointer_validate(uintptr_t fp)
 
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bool kernel_stack_trace_context_validate(stack_trace_context_t *ctx)
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{
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        return fp != 0;
 
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        return ctx->fp != 0;
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}
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bool kernel_frame_pointer_prev(uintptr_t fp, uintptr_t *prev)
 
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bool kernel_frame_pointer_prev(stack_trace_context_t *ctx, uintptr_t *prev)
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{
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        uint64_t *stack = (void *) fp;
 
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        uint64_t *stack = (void *) ctx->fp;
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        *prev = stack[FRAME_OFFSET_FP_PREV];
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        return true;
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}
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bool kernel_return_address_get(uintptr_t fp, uintptr_t *ra)
 
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bool kernel_return_address_get(stack_trace_context_t *ctx, uintptr_t *ra)
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{
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        uint64_t *stack = (void *) fp;
 
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        uint64_t *stack = (void *) ctx->fp;
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        *ra = stack[FRAME_OFFSET_RA];
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        return true;
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}
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bool uspace_frame_pointer_validate(uintptr_t fp)
 
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bool uspace_stack_trace_context_validate(stack_trace_context_t *ctx)
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{
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        return fp != 0;
 
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        return ctx->fp != 0;
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}
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bool uspace_frame_pointer_prev(uintptr_t fp, uintptr_t *prev)
 
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bool uspace_frame_pointer_prev(stack_trace_context_t *ctx, uintptr_t *prev)
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{
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        return !copy_from_uspace((void *) prev,
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            (uint64_t *) fp + FRAME_OFFSET_FP_PREV, sizeof(*prev));
 
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            (uint64_t *) ctx->fp + FRAME_OFFSET_FP_PREV, sizeof(*prev));
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}
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bool uspace_return_address_get(uintptr_t fp, uintptr_t *ra)
 
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bool uspace_return_address_get(stack_trace_context_t *ctx, uintptr_t *ra)
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{
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        return !copy_from_uspace((void *) ra, (uint64_t *) fp + FRAME_OFFSET_RA,
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            sizeof(*ra));
 
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        return !copy_from_uspace((void *) ra,
 
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            (uint64_t *) ctx->fp + FRAME_OFFSET_RA, sizeof(*ra));
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}
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/** @}