Changes in kernel/arch/sparc64/src/debug/stacktrace.c [294f7a52:d99c1d2] in mainline
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kernel/arch/sparc64/src/debug/stacktrace.c
r294f7a52 rd99c1d2 37 37 #include <typedefs.h> 38 38 39 #include <arch.h> 40 #include <arch/stack.h> 41 #include <arch/trap/trap_table.h> 42 43 #if defined(SUN4V) 44 #include <arch/sun4v/arch.h> 45 #endif 46 47 #define FRAME_OFFSET_FP_PREV 14 48 #define FRAME_OFFSET_RA 15 49 50 extern void alloc_window_and_flush(void); 51 52 bool kernel_stack_trace_context_validate(stack_trace_context_t *ctx) 53 { 54 uintptr_t kstack; 55 56 #if defined(SUN4U) 57 kstack = read_from_ag_g6(); 58 #elif defined(SUN4V) 59 kstack = asi_u64_read(ASI_SCRATCHPAD, SCRATCHPAD_KSTACK); 60 #endif 61 62 kstack += STACK_BIAS; 63 kstack -= PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE; 64 65 if (THREAD && (ctx->fp == kstack)) 66 return false; 67 return ctx->fp != 0; 68 } 69 70 bool kernel_frame_pointer_prev(stack_trace_context_t *ctx, uintptr_t *prev) 71 { 72 uint64_t *stack = (void *) ctx->fp; 73 alloc_window_and_flush(); 74 *prev = stack[FRAME_OFFSET_FP_PREV] + STACK_BIAS; 75 return true; 76 } 77 78 bool kernel_return_address_get(stack_trace_context_t *ctx, uintptr_t *ra) 79 { 80 uint64_t *stack = (void *) ctx->fp; 81 alloc_window_and_flush(); 82 *ra = stack[FRAME_OFFSET_RA]; 83 return true; 84 } 85 86 bool uspace_stack_trace_context_validate(stack_trace_context_t *ctx) 39 bool kernel_frame_pointer_validate(uintptr_t fp) 87 40 { 88 41 return false; 89 42 } 90 43 91 bool uspace_frame_pointer_prev(stack_trace_context_t *ctx, uintptr_t *prev)44 bool kernel_frame_pointer_prev(uintptr_t fp, uintptr_t *prev) 92 45 { 93 46 return false; 94 47 } 95 48 96 bool uspace_return_address_get(stack_trace_context_t *ctx , uintptr_t *ra) 49 bool kernel_return_address_get(uintptr_t fp, uintptr_t *ra) 50 { 51 return false; 52 } 53 54 bool uspace_frame_pointer_validate(uintptr_t fp) 55 { 56 return false; 57 } 58 59 bool uspace_frame_pointer_prev(uintptr_t fp, uintptr_t *prev) 60 { 61 return false; 62 } 63 64 bool uspace_return_address_get(uintptr_t fp, uintptr_t *ra) 97 65 { 98 66 return false;
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