67 lines
1.1 KiB
C
67 lines
1.1 KiB
C
/*
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stacktrace.c
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Created: Jan 19, 1993 by Philip Homburg
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Copyright 1995 Philip Homburg
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*/
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#include <stdio.h>
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#include <string.h>
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typedef unsigned int reg_t;
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#define FUNC_STACKTRACE(statement) \
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{ \
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reg_t bp, pc, hbp; \
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extern reg_t get_bp(void); \
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\
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bp= get_bp(); \
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while(bp) \
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{ \
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pc= ((reg_t *)bp)[1]; \
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hbp= ((reg_t *)bp)[0]; \
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statement; \
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if (hbp != 0 && hbp <= bp) \
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{ \
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pc = -1; \
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statement; \
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break; \
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} \
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bp= hbp; \
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} \
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}
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void util_nstrcat(char *str, unsigned long number)
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{
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int n = 10, lead = 1;
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char nbuf[12], *p;
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p = nbuf;
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*p++ = '0';
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*p++ = 'x';
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for(n = 0; n < 8; n++) {
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int i;
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i = (number >> ((7-n)*4)) & 0xF;
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if(!lead || i) {
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*p++ = i < 10 ? '0' + i : 'a' + i - 10;
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lead = 0;
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}
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}
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if(lead) *p++ = '0';
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*p++ = ' ';
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*p++ = '\0';
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strcat(str, nbuf);
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}
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void util_stacktrace(void)
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{
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FUNC_STACKTRACE(printf("0x%lx ", (unsigned long) pc));
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printf("\n");
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}
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void util_stacktrace_strcat(char *str)
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{
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FUNC_STACKTRACE(util_nstrcat(str, pc));
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}
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