53 lines
886 B
C
53 lines
886 B
C
#include <execinfo.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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void myfunc3(void)
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{
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int j, nptrs;
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#define SIZE 100
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void *buffer[100];
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char **strings;
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nptrs = backtrace(buffer, SIZE);
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printf("backtrace() returned %d addresses\n", nptrs);
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/* The call backtrace_symbols_fd(buffer, nptrs, STDOUT_FILENO)
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would produce similar output to the following: */
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strings = backtrace_symbols(buffer, nptrs);
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if (strings == NULL) {
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perror("backtrace_symbols");
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exit(EXIT_FAILURE);
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}
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for (j = 0; j < nptrs; j++)
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printf("%s\n", strings[j]);
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free(strings);
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}
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static void myfunc2(void)
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{
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myfunc3();
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}
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void myfunc(int ncalls)
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{
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if (ncalls > 1)
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myfunc(ncalls - 1);
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else
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myfunc2();
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}
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int main(int argc, char *argv[])
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{
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if (argc != 2) {
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fprintf(stderr, "%s num-calls\n", argv[0]);
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exit(EXIT_FAILURE);
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}
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myfunc(atoi(argv[1]));
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exit(EXIT_SUCCESS);
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}
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