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Code Issues Releases Wiki Activity

update for bug #66, add the srs-librtmp sample for publish h.264 raw stream.

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This commit is contained in:
winlin 2014-11-07 21:06:44 +08:00
parent 1db69b153e
commit b964a6c534
4 changed files with 117 additions and 10 deletions
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34
trunk/research/arm/jmp_sp.cpp
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@ -1,4 +1,5 @@
/*
# see: https://github.com/winlinvip/simple-rtmp-server/issues/190
# see: https://github.com/winlinvip/simple-rtmp-server/wiki/v1_CN_SrsLinuxArm
g++ -g -O0 -o jmp_sp jmp_sp.cpp
arm-linux-gnueabi-g++ -g -o jmp_sp jmp_sp.cpp -static
@ -14,15 +15,13 @@ void func1()
{
#if defined(__amd64__) || defined(__x86_64__)
register long int rsp0 asm("rsp");
printf("in func1, rsp=%#lx, longjmp to func0\n", rsp0);
longjmp(env_func1, 0x101);
printf("func1 terminated\n");
int ret = setjmp(env_func1);
printf("setjmp func0 ret=%d, rsp=%#lx\n", ret, rsp0);
#endif
}
void func0(int* pv0, int* pv1)
void func0()
{
/**
the definition of jmp_buf:
@ -63,6 +62,8 @@ void func0(int* pv0, int* pv1)
printf("env[%d]=%#x, ", i, (int)env_func1[0].__jmpbuf[i]);
}
printf("\n");
func1();
#else
/**
/usr/arm-linux-gnueabi/include/bits/setjmp.h
@ -84,6 +85,24 @@ void func0(int* pv0, int* pv1)
10-26: d8-d15 17words
27: fpscr
*/
/**
For example, on raspberry-pi, armv6 cpu:
(gdb) x /64 env_func1[0].__jmpbuf
v1, 0: 0x00 0x00 0x00 0x00
v2, 1: 0x00 0x00 0x00 0x00
v3, 2: 0x2c 0x84 0x00 0x00
v4, 3: 0x00 0x00 0x00 0x00
v5, 4: 0x00 0x00 0x00 0x00
v6, 5: 0x00 0x00 0x00 0x00
sl, 6: 0x00 0xf0 0xff 0xb6
fp, 7: 0x9c 0xfb 0xff 0xbe
sp, 8: 0x88 0xfb 0xff 0xbe
pc, 9: 0x08 0x85 0x00 0x00
(gdb) p /x $sp
$5 = 0xbefffb88
(gdb) p /x $pc
$4 = 0x850c
*/
int ret = setjmp(env_func1);
printf("setjmp func1 ret=%d\n", ret);
@ -105,10 +124,7 @@ int main(int argc, char** argv) {
(int)sizeof(long int), (int)sizeof(long), (int)sizeof(int));
#endif
int pv0 = 0xf0;
int pv1 = 0xf1;
func0(&pv0, &pv1);
func1();
func0();
printf("terminated\n");