当pthread和虚拟函数爆炸时，如何跟踪riscv指令上的跳转？
我正在编写一个工具，用于跟踪riscv指令上的跳转（当pthread和虚拟函数爆炸时，如何跟踪riscv指令上的跳转？,c,multithreading,binary,pthreads,riscv,C,Multithreading,Binary,Pthreads,Riscv,我正在编写一个工具，用于跟踪riscv指令上的跳转（JAL/JALR）指令。我正在使用https://github.com/illumine/disk-benchmark/blob/master/src/disk-benchmark.c测试我的工具的磁盘基准测试。当不使用虚拟函数和pthread时，该工具跟踪二进制文件上的跳转，但在使用pthread时难以跟踪跳转。以下是riscv上二进制文件的objdump： 0000000000011d8e <main>: 11d8e:
JAL/JALRhttps://github.com/illumine/disk-benchmark/blob/master/src/disk-benchmark.c0000000000011d8e <main>:
11d8e: de010113 addi sp,sp,-544
11d92: 20113c23 sd ra,536(sp)
11d96: 20813823 sd s0,528(sp)
11d9a: 1400 addi s0,sp,544
11d9c: 87aa mv a5,a0
11d9e: ecb43023 sd a1,-320(s0)
11da2: ecf42623 sw a5,-308(s0)
11da6: fe043023 sd zero,-32(s0)
11daa: fc043c23 sd zero,-40(s0)
11dae: ed040793 addi a5,s0,-304
11db2: 853e mv a0,a5
11db4: 8aeff0ef jal ra,10e62 <init_thread_work>
11db8: ecc42703 lw a4,-308(s0)
11dbc: ed040793 addi a5,s0,-304
11dc0: ec043603 ld a2,-320(s0)
11dc4: 85ba mv a1,a4
11dc6: 853e mv a0,a5
11dc8: e60ff0ef jal ra,11428 <parse_cli_arguments>
11dcc: 87aa mv a5,a0
11dce: c385 beqz a5,11dee <main+0x60>
11dd0: 67d5 lui a5,0x15
11dd2: 1287b783 ld a5,296(a5) # 15128 <stderr@@GLIBC_2.26>
11dd6: 86be mv a3,a5
11dd8: 02000613 li a2,32
11ddc: 4585 li a1,1
11dde: 67d1 lui a5,0x14
11de0: b7078513 addi a0,a5,-1168 # 13b70 <__stat+0x4c0>
11de4: f0dfe0ef jal ra,10cf0 <fwrite@plt>
11de8: 4505 li a0,1
11dea: e17fe0ef jal ra,10c00 <exit@plt>
11dee: f4842783 lw a5,-184(s0)
11df2: 12078163 beqz a5,11f14 <main+0x186>
11df6: ee042783 lw a5,-288(s0)
11dfa: 45a1 li a1,8
11dfc: 853e mv a0,a5
11dfe: e43fe0ef jal ra,10c40 <calloc@plt>
11e02: 87aa mv a5,a0
11e04: fef43023 sd a5,-32(s0)
11e08: ee042783 lw a5,-288(s0)
11e0c: 0e000593 li a1,224
11e10: 853e mv a0,a5
11e12: e2ffe0ef jal ra,10c40 <calloc@plt>
11e16: 87aa mv a5,a0
11e18: fcf43c23 sd a5,-40(s0)
11e1c: fe042623 sw zero,-20(s0)
11e20: a841 j 11eb0 <main+0x122>
11e22: fec42703 lw a4,-20(s0)
11e26: 87ba mv a5,a4
11e28: 078e slli a5,a5,0x3
11e2a: 8f99 sub a5,a5,a4
11e2c: 0796 slli a5,a5,0x5
11e2e: 873e mv a4,a5
11e30: fd843783 ld a5,-40(s0)
11e34: 973e add a4,a4,a5
11e36: fec42683 lw a3,-20(s0)
11e3a: ed040793 addi a5,s0,-304
11e3e: 8636 mv a2,a3
11e40: 85ba mv a1,a4
11e42: 853e mv a0,a5
11e44: 92eff0ef jal ra,10f72 <copy_thread_work>
11e48: fec42783 lw a5,-20(s0)
11e4c: 078e slli a5,a5,0x3
11e4e: fe043703 ld a4,-32(s0)
11e52: 00f70533 add a0,a4,a5
11e56: fec42703 lw a4,-20(s0)
11e5a: 87ba mv a5,a4
11e5c: 078e slli a5,a5,0x3
11e5e: 8f99 sub a5,a5,a4
11e60: 0796 slli a5,a5,0x5
11e62: 873e mv a4,a5
11e64: fd843783 ld a5,-40(s0)
11e68: 97ba add a5,a5,a4
11e6a: 86be mv a3,a5
11e6c: 000117b7 lui a5,0x11
11e70: 76078613 addi a2,a5,1888 # 11760 <do_benchmark>
11e74: 4581 li a1,0
11e76: e0bfe0ef jal ra,10c80 <pthread_create@plt>
11e7a: 87aa mv a5,a0
11e7c: faf42a23 sw a5,-76(s0)
11e80: fb442783 lw a5,-76(s0)
11e84: 2781 sext.w a5,a5
11e86: c385 beqz a5,11ea6 <main+0x118>
11e88: 67d5 lui a5,0x15
11e8a: 1287b703 ld a4,296(a5) # 15128 <stderr@@GLIBC_2.26>
11e8e: fb442783 lw a5,-76(s0)
11e92: 863e mv a2,a5
11e94: 67d1 lui a5,0x14
11e96: b9878593 addi a1,a5,-1128 # 13b98 <__stat+0x4e8>
11e9a: 853a mv a0,a4
11e9c: e35fe0ef jal ra,10cd0 <fprintf@plt>
11ea0: 4505 li a0,1
11ea2: d5ffe0ef jal ra,10c00 <exit@plt>
11ea6: fec42783 lw a5,-20(s0)
11eaa: 2785 addiw a5,a5,1
11eac: fef42623 sw a5,-20(s0)
11eb0: ee042703 lw a4,-288(s0)
11eb4: fec42783 lw a5,-20(s0)
11eb8: 2781 sext.w a5,a5
11eba: f6e7c4e3 blt a5,a4,11e22 <main+0x94>
11ebe: fe042623 sw zero,-20(s0)
11ec2: a00d j 11ee4 <main+0x156>
11ec4: fec42783 lw a5,-20(s0)
11ec8: 078e slli a5,a5,0x3
11eca: fe043703 ld a4,-32(s0)
11ece: 97ba add a5,a5,a4
11ed0: 639c ld a5,0(a5)
11ed2: 4581 li a1,0
11ed4: 853e mv a0,a5
11ed6: e0bfe0ef jal ra,10ce0 <pthread_join@plt>
11eda: fec42783 lw a5,-20(s0)
11ede: 2785 addiw a5,a5,1
11ee0: fef42623 sw a5,-20(s0)
11ee4: ee042703 lw a4,-288(s0)
11ee8: fec42783 lw a5,-20(s0)
11eec: 2781 sext.w a5,a5
11eee: fce7cbe3 blt a5,a4,11ec4 <main+0x136>
11ef2: fd843503 ld a0,-40(s0)
11ef6: dbbfe0ef jal ra,10cb0 <free@plt>
11efa: fe043503 ld a0,-32(s0)
11efe: db3fe0ef jal ra,10cb0 <free@plt>
11f02: 4529 li a0,10
11f04: e3dfe0ef jal ra,10d40 <putchar@plt>
11f08: f4c42783 lw a5,-180(s0)
11f0c: 853e mv a0,a5
11f0e: d13fe0ef jal ra,10c20 <sleep@plt>
11f12: b5d5 j 11df6 <main+0x68>
11f14: 4501 li a0,0
11f16: d7bfe0ef jal ra,10c90 <time@plt>
11f1a: fca43823 sd a0,-48(s0)
11f1e: df3fe0ef jal ra,10d10 <clock@plt>
11f22: fca43423 sd a0,-56(s0)
11f26: ee042783 lw a5,-288(s0)
11f2a: 45a1 li a1,8
11f2c: 853e mv a0,a5
11f2e: d13fe0ef jal ra,10c40 <calloc@plt>
11f32: 87aa mv a5,a0
11f34: fef43023 sd a5,-32(s0)
11f38: ee042783 lw a5,-288(s0)
11f3c: 0e000593 li a1,224
11f40: 853e mv a0,a5
11f42: cfffe0ef jal ra,10c40 <calloc@plt>
11f46: 87aa mv a5,a0
11f48: fcf43c23 sd a5,-40(s0)
11f4c: fe042623 sw zero,-20(s0)
11f50: a841 j 11fe0 <main+0x252>
11f52: fec42703 lw a4,-20(s0)
11f56: 87ba mv a5,a4
11f58: 078e slli a5,a5,0x3
11f5a: 8f99 sub a5,a5,a4
11f5c: 0796 slli a5,a5,0x5
11f5e: 873e mv a4,a5
11f60: fd843783 ld a5,-40(s0)
11f64: 973e add a4,a4,a5
11f66: fec42683 lw a3,-20(s0)
11f6a: ed040793 addi a5,s0,-304
11f6e: 8636 mv a2,a3
11f70: 85ba mv a1,a4
11f72: 853e mv a0,a5
11f74: ffffe0ef jal ra,10f72 <copy_thread_work>
11f78: fec42783 lw a5,-20(s0)
11f7c: 078e slli a5,a5,0x3
11f7e: fe043703 ld a4,-32(s0)
11f82: 00f70533 add a0,a4,a5
11f86: fec42703 lw a4,-20(s0)
11f8a: 87ba mv a5,a4
11f8c: 078e slli a5,a5,0x3
11f8e: 8f99 sub a5,a5,a4
11f90: 0796 slli a5,a5,0x5
11f92: 873e mv a4,a5
11f94: fd843783 ld a5,-40(s0)
11f98: 97ba add a5,a5,a4
11f9a: 86be mv a3,a5
11f9c: 000117b7 lui a5,0x11
11fa0: 76078613 addi a2,a5,1888 # 11760 <do_benchmark>
11fa4: 4581 li a1,0
11fa6: cdbfe0ef jal ra,10c80 <pthread_create@plt>
11faa: 87aa mv a5,a0
11fac: faf42a23 sw a5,-76(s0)
11fb0: fb442783 lw a5,-76(s0)
11fb4: 2781 sext.w a5,a5
11fb6: c385 beqz a5,11fd6 <main+0x248>
11fb8: 67d5 lui a5,0x15
11fba: 1287b703 ld a4,296(a5) # 15128 <stderr@@GLIBC_2.26>
11fbe: fb442783 lw a5,-76(s0)
11fc2: 863e mv a2,a5
11fc4: 67d1 lui a5,0x14
11fc6: bc878593 addi a1,a5,-1080 # 13bc8 <__stat+0x518>
11fca: 853a mv a0,a4
11fcc: d05fe0ef jal ra,10cd0 <fprintf@plt>
11fd0: 4505 li a0,1
11fd2: c2ffe0ef jal ra,10c00 <exit@plt>
11fd6: fec42783 lw a5,-20(s0)
11fda: 2785 addiw a5,a5,1
11fdc: fef42623 sw a5,-20(s0)
11fe0: ee042703 lw a4,-288(s0)
11fe4: fec42783 lw a5,-20(s0)
11fe8: 2781 sext.w a5,a5
11fea: f6e7c4e3 blt a5,a4,11f52 <main+0x1c4>
11fee: 4581 li a1,0
11ff0: fd843503 ld a0,-40(s0)
11ff4: a38ff0ef jal ra,1122c <debug_thread_results_header>
11ff8: fe042623 sw zero,-20(s0)
11ffc: a00d j 1201e <main+0x290>
11ffe: fec42783 lw a5,-20(s0)
12002: 078e slli a5,a5,0x3
12004: fe043703 ld a4,-32(s0)
12008: 97ba add a5,a5,a4
1200a: 639c ld a5,0(a5)
1200c: 4581 li a1,0
1200e: 853e mv a0,a5
12010: cd1fe0ef jal ra,10ce0 <pthread_join@plt>
12014: fec42783 lw a5,-20(s0)
12018: 2785 addiw a5,a5,1
1201a: fef42623 sw a5,-20(s0)
1201e: ee042703 lw a4,-288(s0)
12022: fec42783 lw a5,-20(s0)
12026: 2781 sext.w a5,a5
12028: fce7cbe3 blt a5,a4,11ffe <main+0x270>
1202c: ee042683 lw a3,-288(s0)
12030: de040793 addi a5,s0,-544
12034: ed040713 addi a4,s0,-304
12038: fd843603 ld a2,-40(s0)
1203c: 85ba mv a1,a4
1203e: 853e mv a0,a5
12040: a0dff0ef jal ra,11a4c <calculate_summaries>
12044: ed040793 addi a5,s0,-304
12048: de040713 addi a4,s0,-544
1204c: 0e000693 li a3,224
12050: 8636 mv a2,a3
12052: 85ba mv a1,a4
12054: 853e mv a0,a5
12056: cfbfe0ef jal ra,10d50 <memcpy@plt>
1205a: 4585 li a1,1
1205c: fd843503 ld a0,-40(s0)
12060: 9ccff0ef jal ra,1122c <debug_thread_results_header>
12064: ed040793 addi a5,s0,-304
12068: 853e mv a0,a5
1206a: 852ff0ef jal ra,110bc <debug_thread_results>
1206e: 4501 li a0,0
12070: c21fe0ef jal ra,10c90 <time@plt>
12074: fca43023 sd a0,-64(s0)
12078: c99fe0ef jal ra,10d10 <clock@plt>
1207c: faa43c23 sd a0,-72(s0)
12080: f3c42783 lw a5,-196(s0)
12084: ef9d bnez a5,120c2 <main+0x334>
12086: fd043583 ld a1,-48(s0)
1208a: fc043503 ld a0,-64(s0)
1208e: ce3fe0ef jal ra,10d70 <difftime@plt>
12092: 22a506d3 fmv.d fa3,fa0
12096: fb843703 ld a4,-72(s0)
1209a: fc843783 ld a5,-56(s0)
1209e: 40f707b3 sub a5,a4,a5
120a2: d227f753 fcvt.d.l fa4,a5
120a6: 67d1 lui a5,0x14
120a8: c487b787 fld fa5,-952(a5) # 13c48 <__stat+0x598>
120ac: 1af777d3 fdiv.d fa5,fa4,fa5
120b0: e2078653 fmv.x.d a2,fa5
120b4: e20685d3 fmv.x.d a1,fa3
120b8: 67d1 lui a5,0x14
120ba: bf878513 addi a0,a5,-1032 # 13bf8 <__stat+0x548>
120be: b73fe0ef jal ra,10c30 <printf@plt>
120c2: f4442783 lw a5,-188(s0)
120c6: c399 beqz a5,120cc <main+0x33e>
120c8: ac4ff0ef jal ra,1138c <print_system_datetime>
120cc: fd843503 ld a0,-40(s0)
120d0: be1fe0ef jal ra,10cb0 <free@plt>
120d4: fe043503 ld a0,-32(s0)
120d8: bd9fe0ef jal ra,10cb0 <free@plt>
120dc: 4501 li a0,0
120de: c43fe0ef jal ra,10d20 <pthread_exit@plt>
0000000000011d8e:
11d8e:de010113附加sp，sp，-544
11d92:20113c23 sd ra，536（sp）
11d96:20813823 sd S0528（sp）
11d9a:1400 addi s0，sp，544
11d9c:87aa中压a5，a0
11d9e:ecb43023 sd a1，-320（s0）
11da2:ecf42623 sw a5，-308（s0）
11da6:fe043023标准差零点-32（s0）
11daa:fc043c23 sd零-40（s0）
11dae:ed040793 addi a5，s0，-304
11db2:853e mv a0，a5
11db4:8aeff0ef日航，10e62
11db8:ecc42703 lw a4，-308（s0）
11dbc:ed040793 addi a5，s0，-304
11dc0:ec043603 ld a2，-320（s0）
11dc4:85ba中压a1、a4
11dc6:853e mv a0，a5
11dc8:e60ff0ef日本航空公司，邮编11428
11dcc:87aa中压a5，a0
11dce:c385 beqz a5,11dee
11dd0:67d5 lui a5,0x15
11dd2:1287b783 ld A5296（a5）#15128
11dd6:86be mv a3，a5
11dd8:02000613 li a2,32
11ddc:4585 li a1,1
11dde:67d1 lui a5,0x14
11de0:b7078513 addi a0，a5，-1168#13b70
11de4:f0dfe0ef日航ra，10cf0
11de8:4505 li a0,1
11dea:e17fe0ef日本ra，10c00
11dee:f4842783 lw a5，-184（s0）
11df2:12078163 beqz a5,11f14
11df6:ee042783 lw a5，-288（s0）
11dfa:45a1 li a1,8
11dfc:853e mv a0，a5
11dfe:e43fe0ef日本航空公司，10c40
11e02:87aa中压a5，a0
11e04:fef43023 sd a5，-32（s0）
11e08:ee042783 lw a5，-288（s0）
11e0c:0e000593 li A1224
11e10:853e mv a0，a5
11e12:e2ffe0ef jal ra，10c40
11e16:87aa中压a5，a0
11e18:fcf43c23 sd a5，-40（s0）
11e1c:fe042623 sw零点-20（s0）
11e20:a841 j 11eb0
11e22:fec42703 lw a4，-20（s0）
11e26:87ba中压a5，a4
11e28:078e slli a5，a5,0x3
11e2a:8f99子a5、a5、a4
11e2c:0796 slli a5，a5,0x5
11e2e:873e mv a4，a5
11e30:fd843783 ld a5，-40（s0）
11e34:973e添加a4、a4、a5
11e36:fec42683 lw a3，-20（s0）
11e3a:ed040793增补a5，s0，-304
11e3e:8636 mv a2，a3
11e40:85ba中压a1、a4
11e42:853e mv a0，a5
11e44:92eff0ef日航，10f72
11e48:fec42783 lw a5，-20（s0）
11e4c:078e slli a5，a5,0x3
11e4e:fe043703 ld a4，-32（s0）
11e52:00f70533添加a0、a4、a5
11e56:fec42703 lw a4，-20（s0）
11e5a:87ba中压a5，a4
11e5c:078e slli a5，a5,0x3
11e5e:8f99子a5、a5、a4
11e60:0796 slli a5，a5,0x5
11e62:873e mv a4，a5
11e64:fd843783 ld a5，-40（s0）
11e68:97ba添加a5、a5、a4
11e6a:86be mv a3，a5
11e6c:000117b7 lui a5,0x11
11e70:76078613 addi a2，A51888#11760
11e74:4581 li a1,0
11e76:e0bfe0ef日航，10c80
11e7a:87aa mv a5，a0
11e7c:faf42a23 sw a5，-76（s0）
11e80:fb442783 lw a5，-76（s0）
11e84:2781西经a5，a5
11e86:c385 beqz a5,11ea6
11e88:67d5 lui a5,0x15
11e8a:1287b703 ld A4296（a5）#15128
11e8e:fb442783 lw a5，-76（s0）
11e92:863e mv a2，a5
11e94:67d1 lui a5,0x14
11e96:b9878593增补a1，a5，-1128#13b98
11e9a:853a mv a0，a4
11e9c:e35fe0ef日本航空公司，10cd0
11ea0:4505 li a0,1
11ea2:d5ffe0ef jal ra，10c00
11ea6:fec42783 lw a5，-20（s0）
11eaa:2785增补a5，a5,1
11eac:fef42623西南a5，-20（s0）
11eb0:ee042703 lw a4，-288（s0）
11eb4:fec42783
int main(int argc, char *argv[]){
pthread_t *threads = NULL;
ThreadWork_t thread_work, *threads_work = NULL;
int rc, t;
time_t start_time, stop_time;
clock_t start_clock, stop_clock;
/* Initialize the work and parse user options */
init_thread_work(&thread_work);
if( parse_cli_arguments( &thread_work, argc, argv) ){
fprintf(stderr,"\nError while parsing arguments!\n");
exit(ER_EXIT);
}
//if work continously, just block in the loop waiting for user to interrupt with Cntr-C
if( thread_work.work_continously){
while(1){
threads = calloc( thread_work.threads, sizeof(pthread_t) );
threads_work = calloc( thread_work.threads, sizeof(ThreadWork_t) );
for(t=0; t<thread_work.threads; t++) {
copy_thread_work(&thread_work, &threads_work[t], t );
rc = pthread_create( &threads[t], NULL, do_benchmark, (void *) &threads_work[t] );
if (rc){
fprintf(stderr,"\nError return code %d from pthread_create()",rc);
exit(ER_EXIT);
}
}
for(t=0; t<thread_work.threads; t++)
pthread_join( threads[t], NULL);
free(threads_work);
free(threads);
printf("\n");
sleep(thread_work.work_continously_sleep_brake);
}
}
/* Start Wall and CPU clocks and fire threads */
start_time = time(NULL);
start_clock = clock();
threads = calloc( thread_work.threads, sizeof(pthread_t) );
threads_work = calloc( thread_work.threads, sizeof(ThreadWork_t) );
for(t=0; t<thread_work.threads; t++) {
copy_thread_work(&thread_work, &threads_work[t], t );
rc = pthread_create( &threads[t], NULL, do_benchmark, (void *) &threads_work[t] );
if (rc){
fprintf(stderr,"\nERROR return code %d from pthread_create()",rc);
exit(ER_EXIT);
}
}