Nils O. Selåsdal
52 lines
1008 B
C
52 lines
1008 B
C
#include <execinfo.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <ucore/ucore_backtrace.h>
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#define MAX_BACKTRACE_SYMBOLS 96
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void uc_backtrace_fd(int fd)
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{
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void *buffer[MAX_BACKTRACE_SYMBOLS];
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void **syms;
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int ptrs;
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ptrs = backtrace(buffer, MAX_BACKTRACE_SYMBOLS);
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if (ptrs > 0) { //dont print out this function
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ptrs--;
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syms = &buffer[1];
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} else {
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syms = &buffer[0];
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}
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backtrace_symbols_fd(syms, ptrs, fd);
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}
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void uc_backtrace_buf(char *buf, size_t len)
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{
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void *buffer[MAX_BACKTRACE_SYMBOLS];
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int ptrs;
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char **lines;
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size_t remaining = len;
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int i;
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ptrs = backtrace(buffer, MAX_BACKTRACE_SYMBOLS);
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buf[0] = 0;
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lines = backtrace_symbols(buffer, ptrs);
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for (i = 1; i < ptrs; i++) {
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int rc = snprintf(buf, remaining, "%s\n", lines[i]);
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if (rc <= 0 || (size_t)rc >= remaining) {
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break;
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}
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remaining -= rc;
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buf += rc;
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}
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free(lines);
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}
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