4.104.114.84.95
Last change
on this file since 73b5bd5d was
d49389a,
checked in by Joel Sherrill <joel.sherrill@…>, on 02/20/03 at 22:07:22
|
2003-02-20 Till Straumann <strauman@…>
PR 349/bsps
- mpc6xx/exceptions/raw_exception.c, mpc6xx/mmu/bat.c,
mpc6xx/mmu/pte121.c, shared/include/cpuIdent.c,
shared/include/cpuIdent.h, shared/src/Makefile.am, shared/src/stack.c,
shared/src/stackTrace.h, powerpc/registers.h:
- undo improper 'fix' who broke mpc604r identification
- fix: 7400 identification PVR value was wrong
- enhance 'setdbat()' to switch OFF a given BAT if called with 0 size
- fix: page table support bugfix
- enhancement: provide routines to take and print stack trace
snapshots
- add definitions for HID1 and DABR SPRs
|
-
Property mode set to
100644
|
File size:
905 bytes
|
Rev | Line | |
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[d49389a] | 1 | #include "stackTrace.h" |
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| 2 | #include <rtems/bspIo.h> |
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| 3 | #include <libcpu/spr.h> |
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| 4 | |
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| 5 | SPR_RO(LR) |
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| 6 | |
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| 7 | typedef struct FrameRec_ { |
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| 8 | struct FrameRec_ *up; |
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| 9 | void *lr; |
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| 10 | } FrameRec, *Frame; |
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| 11 | |
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| 12 | #define CPU_STACK_TRACE_DEPTH 40 |
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| 13 | |
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| 14 | void CPU_stack_take_snapshot(void **stack, int size, void *pc, void *lr, void *r1) |
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| 15 | { |
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| 16 | register Frame p = (Frame)lr; |
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| 17 | register int i=0; |
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| 18 | if (pc) stack[i++]=pc; |
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| 19 | if (!p) |
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| 20 | p = (Frame)_read_LR(); |
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| 21 | stack[i++]=p; |
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| 22 | p = r1; |
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| 23 | if (!p) /* no macro for reading user regs */ |
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| 24 | __asm__ __volatile__("mr %0, %%r1":"=r"(p)); |
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| 25 | for (; i<size-1 && p->up; p=p->up, i++) { |
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| 26 | stack[i]=p->up->lr; |
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| 27 | } |
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| 28 | stack[i]=0; |
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| 29 | } |
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| 30 | |
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| 31 | void CPU_print_stack(void) |
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| 32 | { |
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| 33 | void *stck[CPU_STACK_TRACE_DEPTH]; |
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| 34 | int i; |
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| 35 | CPU_stack_take_snapshot(stck,CPU_STACK_TRACE_DEPTH,0,0,0); |
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| 36 | for (i=0; stck[i]; i++) { |
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| 37 | if (i%5) printk("--> "); |
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| 38 | else printk("\n"); |
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| 39 | printk("0x%08x",stck[i]); |
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| 40 | } |
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| 41 | printk("\n"); |
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| 42 | } |
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