胡斌 / srs

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winlin
b2e1e40d 2 parents 6a865377 2c01f7e9

Merge branch 'srs.master'

内嵌 并排对比
正在显示 6 个修改的文件 包含 74 行增加 和 45 行删除
@@ -9,15 +9,20 @@ @@ -9,15 +9,20 @@
9 #include <stdlib.h> 9 #include <stdlib.h>
10 #include <setjmp.h> 10 #include <setjmp.h>
11 11
12 -jmp_buf env_func1; 12 +jmp_buf context;
13 13
14 void func1() 14 void func1()
15 { 15 {
16 #if defined(__amd64__) || defined(__x86_64__) 16 #if defined(__amd64__) || defined(__x86_64__)
17 register long int rsp0 asm("rsp"); 17 register long int rsp0 asm("rsp");
18 18
19 - int ret = setjmp(env_func1);  
20 - printf("setjmp func0 ret=%d, rsp=%#lx\n", ret, rsp0); 19 + int ret = setjmp(context);
  20 + printf("setjmp func1 ret=%d, rsp=%#lx\n", ret, rsp0);
  21 + // enter by longjmp
  22 + if (ret != 0) {
  23 + printf("call by longjmp.\n");
  24 + exit(0);
  25 + }
21 #endif 26 #endif
22 } 27 }
23 28
@@ -49,15 +54,15 @@ void func0() @@ -49,15 +54,15 @@ void func0()
49 // for glibc 2.4+, it's not possible to get and set the sp in jmp_buf 54 // for glibc 2.4+, it's not possible to get and set the sp in jmp_buf
50 /** 55 /**
51 for example, the following is show the jmp_buf when setjmp: 56 for example, the following is show the jmp_buf when setjmp:
52 - (gdb) x /64xb env_func1[0].__jmpbuf  
53 - 0x600ca0 <env_func1>: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00  
54 - 0x600ca8 <env_func1+8>: 0xf8 0xc1 0x71 0xe5 0xa8 0x88 0xb4 0x15  
55 - 0x600cb0 <env_func1+16>: 0xa0 0x05 0x40 0x00 0x00 0x00 0x00 0x00  
56 - 0x600cb8 <env_func1+24>: 0x90 0xe4 0xff 0xff 0xff 0x7f 0x00 0x00  
57 - 0x600cc0 <env_func1+32>: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00  
58 - 0x600cc8 <env_func1+40>: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00  
59 - 0x600cd0 <env_func1+48>: 0xf8 0xc1 0x51 0xe5 0xa8 0x88 0xb4 0x15  
60 - 0x600cd8 <env_func1+56>: 0xf8 0xc1 0xd9 0x2f 0xd7 0x77 0x4b 0xea 57 + (gdb) x /64xb context[0].__jmpbuf
  58 + 0x600ca0 <context>: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
  59 + 0x600ca8 <context+8>: 0xf8 0xc1 0x71 0xe5 0xa8 0x88 0xb4 0x15
  60 + 0x600cb0 <context+16>: 0xa0 0x05 0x40 0x00 0x00 0x00 0x00 0x00
  61 + 0x600cb8 <context+24>: 0x90 0xe4 0xff 0xff 0xff 0x7f 0x00 0x00
  62 + 0x600cc0 <context+32>: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
  63 + 0x600cc8 <context+40>: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
  64 + 0x600cd0 <context+48>: 0xf8 0xc1 0x51 0xe5 0xa8 0x88 0xb4 0x15
  65 + 0x600cd8 <context+56>: 0xf8 0xc1 0xd9 0x2f 0xd7 0x77 0x4b 0xea
61 (gdb) p /x $sp 66 (gdb) p /x $sp
62 $4 = 0x7fffffffe380 67 $4 = 0x7fffffffe380
63 we cannot finger the sp out. 68 we cannot finger the sp out.
@@ -65,12 +70,12 @@ void func0() @@ -65,12 +70,12 @@ void func0()
65 */ 70 */
66 register long int rsp0 asm("rsp"); 71 register long int rsp0 asm("rsp");
67 72
68 - int ret = setjmp(env_func1); 73 + int ret = setjmp(context);
69 printf("setjmp func0 ret=%d, rsp=%#lx\n", ret, rsp0); 74 printf("setjmp func0 ret=%d, rsp=%#lx\n", ret, rsp0);
70 75
71 printf("after setjmp: "); 76 printf("after setjmp: ");
72 for (int i = 0; i < 8; i++) { 77 for (int i = 0; i < 8; i++) {
73 - printf("env[%d]=%#x, ", i, (int)env_func1[0].__jmpbuf[i]); 78 + printf("env[%d]=%#x, ", i, (int)context[0].__jmpbuf[i]);
74 } 79 }
75 printf("\n"); 80 printf("\n");
76 81
@@ -100,7 +105,7 @@ void func0() @@ -100,7 +105,7 @@ void func0()
100 */ 105 */
101 /** 106 /**
102 For example, on raspberry-pi, armv6 cpu: 107 For example, on raspberry-pi, armv6 cpu:
103 - (gdb) x /64 env_func1[0].__jmpbuf 108 + (gdb) x /64 context[0].__jmpbuf
104 v1, 0: 0x00 0x00 0x00 0x00 109 v1, 0: 0x00 0x00 0x00 0x00
105 v2, 1: 0x00 0x00 0x00 0x00 110 v2, 1: 0x00 0x00 0x00 0x00
106 v3, 2: 0x2c 0x84 0x00 0x00 111 v3, 2: 0x2c 0x84 0x00 0x00
@@ -116,19 +121,18 @@ void func0() @@ -116,19 +121,18 @@ void func0()
116 (gdb) p /x $pc 121 (gdb) p /x $pc
117 $4 = 0x850c 122 $4 = 0x850c
118 */ 123 */
119 - int ret = setjmp(env_func1); 124 + int ret = setjmp(context);
120 printf("setjmp func1 ret=%d\n", ret); 125 printf("setjmp func1 ret=%d\n", ret);
121 126
122 printf("after setjmp: "); 127 printf("after setjmp: ");
123 for (int i = 0; i < 64; i++) { 128 for (int i = 0; i < 64; i++) {
124 - printf("env[%d]=%#x, ", i, (int)env_func1[0].__jmpbuf[i]); 129 + printf("env[%d]=%#x, ", i, (int)context[0].__jmpbuf[i]);
125 } 130 }
126 131
127 printf("func0 terminated\n"); 132 printf("func0 terminated\n");
128 #endif 133 #endif
129 } 134 }
130 135
131 -extern uintptr_t _jmpbuf_sp (__jmp_buf regs);  
132 int main(int argc, char** argv) { 136 int main(int argc, char** argv) {
133 #if defined(__amd64__) || defined(__x86_64__) 137 #if defined(__amd64__) || defined(__x86_64__)
134 printf("x86_64 sizeof(long int)=%d, sizeof(long)=%d, " 138 printf("x86_64 sizeof(long int)=%d, sizeof(long)=%d, "
@@ -143,6 +147,7 @@ int main(int argc, char** argv) { @@ -143,6 +147,7 @@ int main(int argc, char** argv) {
143 #endif 147 #endif
144 148
145 func0(); 149 func0();
  150 + longjmp(context, 1);
146 151
147 printf("terminated\n"); 152 printf("terminated\n");
148 153
@@ -411,15 +411,6 @@ extern _st_eventsys_t *_st_eventsys; @@ -411,15 +411,6 @@ extern _st_eventsys_t *_st_eventsys;
411 ST_END_MACRO 411 ST_END_MACRO
412 412
413 /* 413 /*
414 - * Initialize the thread context preparing it to execute _main  
415 - */  
416 -#ifdef MD_INIT_CONTEXT  
417 - #define _ST_INIT_CONTEXT MD_INIT_CONTEXT  
418 -#else  
419 - #error Unknown OS  
420 -#endif  
421 -  
422 -/*  
423 * Number of bytes reserved under the stack "bottom" 414 * Number of bytes reserved under the stack "bottom"
424 */ 415 */
425 #define _ST_STACK_PAD_SIZE MD_STACK_PAD_SIZE 416 #define _ST_STACK_PAD_SIZE MD_STACK_PAD_SIZE
@@ -107,13 +107,6 @@ @@ -107,13 +107,6 @@
107 107
108 #if defined(__mips__) 108 #if defined(__mips__)
109 #define MD_STACK_GROWS_DOWN 109 #define MD_STACK_GROWS_DOWN
110 -  
111 - #define MD_INIT_CONTEXT(_thread, _sp, _main) \  
112 - ST_BEGIN_MACRO \  
113 - MD_SETJMP((_thread)->context); \  
114 - _thread->context[0].__jmpbuf[0].__pc = (__ptr_t) _main; \  
115 - _thread->context[0].__jmpbuf[0].__sp = _sp; \  
116 - ST_END_MACRO  
117 #else /* Not or mips */ 110 #else /* Not or mips */
118 /* 111 /*
119 * On linux, there are a few styles of jmpbuf format. These vary based 112 * On linux, there are a few styles of jmpbuf format. These vary based
@@ -166,13 +159,6 @@ @@ -166,13 +159,6 @@
166 #else 159 #else
167 #error "Unknown CPU architecture" 160 #error "Unknown CPU architecture"
168 #endif /* Cases with common MD_INIT_CONTEXT and different SP locations */ 161 #endif /* Cases with common MD_INIT_CONTEXT and different SP locations */
169 -  
170 - #define MD_INIT_CONTEXT(_thread, _sp, _main) \  
171 - ST_BEGIN_MACRO \  
172 - if (MD_SETJMP((_thread)->context)) \  
173 - _main(); \  
174 - MD_GET_SP(_thread) = (long) (_sp); \  
175 - ST_END_MACRO  
176 #endif /* Cases with different MD_INIT_CONTEXT */ 162 #endif /* Cases with different MD_INIT_CONTEXT */
177 163
178 #if defined(MD_USE_BUILTIN_SETJMP) && !defined(USE_LIBC_SETJMP) 164 #if defined(MD_USE_BUILTIN_SETJMP) && !defined(USE_LIBC_SETJMP)
@@ -553,6 +553,20 @@ _st_thread_t *st_thread_create(void *(*start)(void *arg), void *arg, int joinabl @@ -553,6 +553,20 @@ _st_thread_t *st_thread_create(void *(*start)(void *arg), void *arg, int joinabl
553 * grows downward. Both stacks start in the middle and grow outward 553 * grows downward. Both stacks start in the middle and grow outward
554 * from each other. 554 * from each other.
555 */ 555 */
  556 + /**
  557 + The below comments is by winlin:
  558 + The Stack public structure:
  559 + +--------------------------------------------------------------+
  560 + | stack |
  561 + +--------------------------------------------------------------+
  562 + bottom top
  563 + The code bellow use the stack as:
  564 + +-----------------+-----------------+-------------+------------+
  565 + | stack of thread |pad+align(128B+) |thread(336B) | keys(128B) |
  566 + +-----------------+-----------------+-------------+------------+
  567 + bottom sp trd ptds top
  568 + (context[0].__jmpbuf.sp) (private_data)
  569 + */
556 sp = sp - (ST_KEYS_MAX * sizeof(void *)); 570 sp = sp - (ST_KEYS_MAX * sizeof(void *));
557 ptds = (void **) sp; 571 ptds = (void **) sp;
558 sp = sp - sizeof(_st_thread_t); 572 sp = sp - sizeof(_st_thread_t);
@@ -564,7 +578,7 @@ _st_thread_t *st_thread_create(void *(*start)(void *arg), void *arg, int joinabl @@ -564,7 +578,7 @@ _st_thread_t *st_thread_create(void *(*start)(void *arg), void *arg, int joinabl
564 } 578 }
565 stack->sp = sp - _ST_STACK_PAD_SIZE; 579 stack->sp = sp - _ST_STACK_PAD_SIZE;
566 #else 580 #else
567 - #error Unknown Stack Grown 581 + #error "Only Supports Stack Grown Down"
568 #endif 582 #endif
569 583
570 memset(trd, 0, sizeof(_st_thread_t)); 584 memset(trd, 0, sizeof(_st_thread_t));
@@ -576,7 +590,18 @@ _st_thread_t *st_thread_create(void *(*start)(void *arg), void *arg, int joinabl @@ -576,7 +590,18 @@ _st_thread_t *st_thread_create(void *(*start)(void *arg), void *arg, int joinabl
576 trd->start = start; 590 trd->start = start;
577 trd->arg = arg; 591 trd->arg = arg;
578 592
579 - _ST_INIT_CONTEXT(trd, stack->sp, _st_thread_main); 593 +// by winlin, expand macro MD_INIT_CONTEXT
  594 +#if defined(__mips__)
  595 + MD_SETJMP((trd)->context);
  596 + trd->context[0].__jmpbuf[0].__pc = (__ptr_t) _st_thread_main;
  597 + trd->context[0].__jmpbuf[0].__sp = stack->sp;
  598 +#else
  599 + int ret_setjmp = 0;
  600 + if ((ret_setjmp = MD_SETJMP((trd)->context)) != 0) {
  601 + _st_thread_main();
  602 + }
  603 + MD_GET_SP(trd) = (long) (stack->sp);
  604 +#endif
580 605
581 /* If thread is joinable, allocate a termination condition variable */ 606 /* If thread is joinable, allocate a termination condition variable */
582 if (joinable) { 607 if (joinable) {
@@ -46,6 +46,21 @@ int huge_stack_test() @@ -46,6 +46,21 @@ int huge_stack_test()
46 return 0; 46 return 0;
47 } 47 }
48 48
  49 +int sleep_test()
  50 +{
  51 + srs_trace("===================================================");
  52 + srs_trace("sleep test: start");
  53 +
  54 + srs_trace("1. sleep...");
  55 +
  56 + st_usleep(sleep_ms * 1000);
  57 + srs_trace("2. sleep ok");
  58 +
  59 + srs_trace("sleep test: end");
  60 +
  61 + return 0;
  62 +}
  63 +
49 void* thread_func(void* arg) 64 void* thread_func(void* arg)
50 { 65 {
51 srs_trace("1. thread run"); 66 srs_trace("1. thread run");
@@ -68,8 +83,10 @@ int thread_test() @@ -68,8 +83,10 @@ int thread_test()
68 st_thread_join(trd, NULL); 83 st_thread_join(trd, NULL);
69 srs_trace("3. thread joined"); 84 srs_trace("3. thread joined");
70 85
  86 + st_thread_exit(NULL);
  87 + srs_trace("4. all thread completed");
  88 +
71 srs_trace("thread test: end"); 89 srs_trace("thread test: end");
72 - exit(0);  
73 90
74 return 0; 91 return 0;
75 } 92 }
@@ -342,6 +359,11 @@ int main(int argc, char** argv) @@ -342,6 +359,11 @@ int main(int argc, char** argv)
342 return -1; 359 return -1;
343 } 360 }
344 361
  362 + if (sleep_test() < 0) {
  363 + srs_trace("sleep_test failed");
  364 + return -1;
  365 + }
  366 +
345 if (thread_test() < 0) { 367 if (thread_test() < 0) {
346 srs_trace("thread_test failed"); 368 srs_trace("thread_test failed");
347 return -1; 369 return -1;
@@ -138,7 +138,7 @@ static char *_st_new_stk_segment(int size) @@ -138,7 +138,7 @@ static char *_st_new_stk_segment(int size)
138 #ifdef MALLOC_STACK 138 #ifdef MALLOC_STACK
139 void *vaddr = malloc(size); 139 void *vaddr = malloc(size);
140 #else 140 #else
141 - #error Unknown Stack Malloc 141 + #error "Only Supports Malloc Stack"
142 #endif 142 #endif
143 143
144 return (char *)vaddr; 144 return (char *)vaddr;