jmp_sp.cpp
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/*
# see: https://github.com/winlinvip/simple-rtmp-server/wiki/v1_CN_SrsLinuxArm
arm-linux-gnueabi-g++ -g -o jmp_sp jmp_sp.cpp -static
arm-linux-gnueabi-strip jmp_sp
*/
#include <stdio.h>
#include <stdlib.h>
#include <setjmp.h>
int main(int argc, char** argv) {
#if defined(__amd64__) || defined(__x86_64__)
printf("x86_64 sizeof(long int)=%d, sizeof(long)=%d, sizeof(int)=%d\n", (int)sizeof(long int), (int)sizeof(long), (int)sizeof(int));
#else
printf("arm sizeof(long int)=%d, sizeof(long)=%d, sizeof(int)=%d\n", (int)sizeof(long int), (int)sizeof(long), (int)sizeof(int));
#endif
jmp_buf env;
int ret = setjmp(env);
printf("setjmp func1 ret=%d\n", ret);
#if defined(__amd64__) || defined(__x86_64__)
// typedef lint64_t __jmp_buf[8];
printf("after setjmp: ");
for (int i = 0; i < 8; i++) {
printf("env[%d]=%#x, ", i, (int)env[0].__jmpbuf[i]);
}
printf("\n");
#else
// typedef int32_t __jmp_buf[64] __attribute__((__aligned__ (8)));
printf("after setjmp: ");
for (int i = 0; i < 64; i++) {
printf("env[%d]=%#x, ", i, (int)env[0].__jmpbuf[i]);
}
printf("\n");
#endif
return 0;
}