Request for Guidance in Using sysFS for Coresight in HiKey960 (Cortex A53/A73)

10 Jun 2019


      Dear Sir,
My apologies for spamming you with more, perhaps ridiculous, questions...
I have been struggling to understand the systematic approach to conduct system traces with sysFS. I have asked similar question to hwangcc23, but I feel this question is suited more for the Linaro team.
I am having trouble choosing the options for the coresight drivers in my Hikey960 device with Cortex A53 and A73 processors, 4 CPUs each. I have created a simple program that is a quick implementation of a link list in C program. The following is the objdump of the main object:
```bash
...
...
00000000000009e8 <main>:
 9e8: d10583ff  sub sp, sp, #0x160
 9ec: f900a3fc  str x28, [sp,#320]
 9f0: a9157bfd  stp x29, x30, [sp,#336]
 9f4: 910543fd  add x29, sp, #0x150
 9f8: 321e03e8  orr w8, wzr, #0x4
 9fc: 52800009  mov w9, #0x0                    // #0
 a00: b27903e2  orr x2, xzr, #0x80
 a04: d280000a  mov x10, #0x0                    // #0
 a08: b000008b  adrp x11, 11000 <init+0x100f4>
 a0c: f947e96b  ldr x11, [x11,#4048]
 a10: d280260c  mov x12, #0x130                  // #304
 a14: 8b0c016c  add x12, x11, x12
 a18: 9000000d  adrp x13, 0 <note_android_ident-0x218>
 a1c: 913f21ad  add x13, x13, #0xfc8
 a20: d280130e  mov x14, #0x98                   // #152
 a24: 8b0e016b  add x11, x11, x14
 a28: 9000000e  adrp x14, 0 <note_android_ident-0x218>
 a2c: 913e41ce  add x14, x14, #0xf90
 a30: 9000000f  adrp x15, 0 <note_android_ident-0x218>
 a34: 913f09ef  add x15, x15, #0xfc2
 a38: 90000010  adrp x16, 0 <note_android_ident-0x218>
 a3c: 913dfa10  add x16, x16, #0xf7e
 a40: 90000011  adrp x17, 0 <note_android_ident-0x218>
 a44: 913db231  add x17, x17, #0xf6c
 a48: 9102a3f2  add x18, sp, #0xa8
 a4c: b81ec3bf  stur wzr, [x29,#-20]
 a50: b81e83a0  stur w0, [x29,#-24]
 a54: f81e03a1  stur x1, [x29,#-32]
 a58: b81dc3a8  stur w8, [x29,#-36]
 a5c: f9003bf2  str x18, [sp,#112]
 a60: f90037f1  str x17, [sp,#104]
 a64: f90033f0  str x16, [sp,#96]
 a68: b9005fe9  str w9, [sp,#92]
 a6c: f9002be2  str x2, [sp,#80]
 a70: f90027ea  str x10, [sp,#72]
 a74: f90023ed  str x13, [sp,#64]
 a78: f9001fec  str x12, [sp,#56]
 a7c: f9001beb  str x11, [sp,#48]
 a80: f90017ee  str x14, [sp,#40]
 a84: f90013ef  str x15, [sp,#32]
 a88: 97ffff8e  bl 8c0 getpid@plt
 a8c: b81d83a0  stur w0, [x29,#-40]
 a90: f9403be0  ldr x0, [sp,#112]
 a94: b9405fe8  ldr w8, [sp,#92]
 a98: 2a0803e1  mov w1, w8
 a9c: f9402be2  ldr x2, [sp,#80]
 aa0: 97ffffa4  bl 930 memset@plt
 aa4: b27603e8  orr x8, xzr, #0x400
 aa8: b27e03e9  orr x9, xzr, #0x4
 aac: f90053e9  str x9, [sp,#160]
 ab0: f94053e9  ldr x9, [sp,#160]
 ab4: eb08013f  cmp x9, x8
 ab8: 1a9f27ea  cset w10, cc
 abc: 3700004a  tbnz w10, #0, ac4 <main+0xdc>
 ac0: 14000010  b b00 <main+0x118>
 ac4: 9102a3e8  add x8, sp, #0xa8
 ac8: b27d03e9  orr x9, xzr, #0x8
 acc: b27a03ea  orr x10, xzr, #0x40
 ad0: b24003eb  orr x11, xzr, #0x1
 ad4: b24017ec  orr x12, xzr, #0x3f
 ad8: f94053ed  ldr x13, [sp,#160]
 adc: 8a0c01ac  and x12, x13, x12
 ae0: 9acc216b  lsl x11, x11, x12
 ae4: f94053ec  ldr x12, [sp,#160]
 ae8: 9aca098a  udiv x10, x12, x10
 aec: 9b0a7d29  mul x9, x9, x10
 af0: 8b090108  add x8, x8, x9
 af4: f9400109  ldr x9, [x8]
 af8: aa0b0129  orr x9, x9, x11
 afc: f9000109  str x9, [x8]
 b00: 9102a3e2  add x2, sp, #0xa8
 b04: b27903e1  orr x1, xzr, #0x80
 b08: b85d83a0  ldur w0, [x29,#-40]
 b0c: 97ffff79  bl 8f0 sched_setaffinity@plt
 b10: b9009fe0  str w0, [sp,#156]
 b14: b9409fe0  ldr w0, [sp,#156]
 b18: 35000040  cbnz w0, b20 <main+0x138>
 b1c: 1400000c  b b4c <main+0x164>
 b20: 320003e0  orr w0, wzr, #0x1
 b24: b9409fe8  ldr w8, [sp,#156]
 b28: b9001fe0  str w0, [sp,#28]
 b2c: b9001be8  str w8, [sp,#24]
 b30: 97ffff60  bl 8b0 __errno@plt
 b34: b9401be8  ldr w8, [sp,#24]
 b38: b9000008  str w8, [x0]
 b3c: f94037e0  ldr x0, [sp,#104]
 b40: 97ffff64  bl 8d0 perror@plt
 b44: b9401fe0  ldr w0, [sp,#28]
 b48: 97ffff6e  bl 900 exit@plt
 b4c: 9102a3e2  add x2, sp, #0xa8
 b50: b27903e1  orr x1, xzr, #0x80
 b54: b85d83a0  ldur w0, [x29,#-40]
 b58: 97ffff62    bl 8e0 sched_getaffinity@plt
 b5c: b9009be0  str w0, [sp,#152]
 b60: b9409be0  ldr w0, [sp,#152]
 b64: 35000040  cbnz w0, b6c <main+0x184>
 b68: 1400000c  b b98 <main+0x1b0>
 b6c: 320003e0  orr w0, wzr, #0x1
 b70: b9409be8  ldr w8, [sp,#152]
 b74: b90017e0  str w0, [sp,#20]
 b78: b90013e8  str w8, [sp,#16]
 b7c: 97ffff4d    bl 8b0 __errno@plt
 b80: b94013e8  ldr w8, [sp,#16]
 b84: b9000008  str w8, [x0]
 b88: f94033e0  ldr x0, [sp,#96]
 b8c: 97ffff51    bl 8d0 perror@plt
 b90: b94017e0  ldr w0, [sp,#20]
 b94: 97ffff5b    bl 900 exit@plt
 b98: b27603e8  orr x8, xzr, #0x400
 b9c: b27e03e9  orr x9, xzr, #0x4
 ba0: f9004be9  str x9, [sp,#144]
 ba4: f9404be9  ldr x9, [sp,#144]
 ba8: eb08013f  cmp x9, x8
 bac: 1a9f27ea  cset w10, cc
 bb0: 3700004a  tbnz w10, #0, bb8 <main+0x1d0>
 bb4: 14000016  b c0c <main+0x224>
 bb8: 9102a3e8  add x8, sp, #0xa8
 bbc: d2800009  mov x9, #0x0                    // #0
 bc0: b27d03ea  orr x10, xzr, #0x8
 bc4: b27a03eb  orr x11, xzr, #0x40
 bc8: b24003ec  orr x12, xzr, #0x1
 bcc: b24017ed  orr x13, xzr, #0x3f
 bd0: f9404bee  ldr x14, [sp,#144]
 bd4: 9acb09cb  udiv x11, x14, x11
 bd8: 9b0b7d4a  mul x10, x10, x11
 bdc: 8b0a0108  add x8, x8, x10
 be0: f9400108  ldr x8, [x8]
 be4: f9404bea  ldr x10, [sp,#144]
 be8: 8a0d014a  and x10, x10, x13
 bec: 9aca218a  lsl x10, x12, x10
 bf0: 8a0a0108  and x8, x8, x10
 bf4: eb09011f  cmp x8, x9
 bf8: 1a9f07ef    cset w15, ne
 bfc: 320003f0  orr w16, wzr, #0x1
 c00: 0a1001ef  and w15, w15, w16
 c04: b9000fef    str w15, [sp,#12]
 c08: 14000003  b c14 <main+0x22c>
 c0c: 52800008  mov w8, #0x0                    // #0
 c10: b9000fe8  str w8, [sp,#12]
 c14: b9400fe8  ldr w8, [sp,#12]
 c18: b9008fe8  str w8, [sp,#140]
 c1c: b9408fe8  ldr w8, [sp,#140]
 c20: 35000048  cbnz w8, c28 <main+0x240>
 c24: 14000028  b cc4 <main+0x2dc>
 c28: b27c03e0  orr x0, xzr, #0x10
 c2c: 321e03e3  orr w3, wzr, #0x4
 c30: b85d83a2  ldur w2, [x29,#-40]
 c34: f9401be8  ldr x8, [sp,#48]
 c38: f90003e0  str x0, [sp]
 c3c: aa0803e0  mov x0, x8
 c40: f94017e1  ldr x1, [sp,#40]
 c44: 97ffff33    bl 910 fprintf@plt
 c48: f94027e8  ldr x8, [sp,#72]
 c4c: f90043e8  str x8, [sp,#128]
 c50: f94003e1  ldr x1, [sp]
 c54: aa0103e0  mov x0, x1
 c58: 97ffff32    bl 920 malloc@plt
 c5c: f90043e0  str x0, [sp,#128]
 c60: f94043e0  ldr x0, [sp,#128]
 c64: 940000aa  bl f0c <init>
 c68: b9007fff    str wzr, [sp,#124]
 c6c: 52849f08  mov w8, #0x24f8                 // #9464
 c70: 72a00028  movk w8, #0x1, lsl #16
 c74: b9407fe9  ldr w9, [sp,#124]
 c78: 6b08013f  cmp w9, w8
 c7c: 1a9fa7e8  cset w8, lt
 c80: 37000048  tbnz w8, #0, c88 <main+0x2a0>
 c84: 14000009  b ca8 <main+0x2c0>
 c88: 52800c28  mov w8, #0x61                   // #97
 c8c: f94043e0  ldr x0, [sp,#128]
 c90: 2a0803e1  mov w1, w8
 c94: 94000016  bl cec <push>
 c98: b9407fe8  ldr w8, [sp,#124]
 c9c: 11000508  add w8, w8, #0x1
 ca0: b9007fe8  str w8, [sp,#124]
 ca4: 17fffff2  b c6c <main+0x284>
 ca8: f94013e0  ldr x0, [sp,#32]
 cac: 97fffefd  bl 8a0 printf@plt
 cb0: f94043e8  ldr x8, [sp,#128]
 cb4: aa0803e0  mov x0, x8
 cb8: 94000065  bl e4c <print_list>
 cbc: b81ec3bf  stur wzr, [x29,#-20]
 cc0: 14000006  b cd8 <main+0x2f0>
 cc4: 321e03e3  orr w3, wzr, #0x4
 cc8: b85d83a2  ldur w2, [x29,#-40]
 ccc: f9401fe0  ldr x0, [sp,#56]
 cd0: f94023e1  ldr x1, [sp,#64]
 cd4: 97ffff0f  bl 910 fprintf@plt
 cd8: b85ec3a0  ldur w0, [x29,#-20]
 cdc: a9557bfd  ldp x29, x30, [sp,#336]
 ce0: f940a3fc  ldr x28, [sp,#320]
 ce4: 910583ff  add sp, sp, #0x160
 ce8: d65f03c0  ret
...
...
```
What i did was look at the start address (d10583ff) of the main object and echo it into /sys/bus/coresight/devices/<memory_map>.etm/addr_start. Even though I was able to write into addr_start in sysfs, I was unable to read the value back despite it being readable. This can be seen in the following output:
```bash
-rw-r--r-- 1 root root 4096 1970-01-01 00:11 ecc40000.etm/addr_start
hikey960:/sys/bus/coresight/devices # echo d10583ff > ecc40000.etm/addr_start
1|hikey960:/sys/bus/coresight/devices # cat ecc40000.etm/addr_start
cat: ecc40000.etm/addr_start: Operation not permitted
```
I thought it was not important that the Operation was 'not permitted'. Nonetheless, I continued with the tutorial as depicted [here](https://github.com/torvalds/linux/blob/master/Documentation/trace/coresight....). One thing I will like to note is that my `rwp` did move when i initially activated the sink and source. However, the 2nd time i checked the `rwp`, it went back `0x0`, the same position as that of my `rrp`.
Regardless, I run the program in another kernel, performed CPU affinity to the program to point at the CPU in which the ETM is activated (in this case, CPU0). While the program is running, i looked at the `rwp/rrp` and see that neither of the pointers are moving. I thought perhaps if i perform `dd` operation, I might be able to get something.
I performed `dd if=/dev/ec036000.etf of=/data/cs.bin bs=1M` but my device crashed and reboot itself without saving any files.
More info about my device:
`# uname -a` yields `Linux localhost 4.9.176-12953-g7c09ed7b46a4-dirty #13 SMP PREEMPT Tue Jun 4 10:16:26 +08 2019 aarch64`
hi3660-coresight.dtsi yields the following device tree:
```bash
/*
 * Copyright (C) 2016-2017 Hisilicon Ltd.
 * Author: shiwanglai shiwanglai@hisilicon.com
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * publishhed by the Free Software Foundation.
 */
/ {
amba {
 #address-cells = <2>;
 #size-cells = <2>;
 compatible = "arm,amba-bus";
 ranges;
/* A53 cluster internal coresight */
 etm@0,ecc40000 {
  compatible = "arm,coresight-etm4x","arm,primecell";
  reg = <0 0xecc40000 0 0x1000>;
  clocks = <&pclk>;
  clock-names = "apb_pclk";
  cpu = <&cpu0>;
  port {
   etm0_out_port: endpoint {
    remote-endpoint = <&funnel0_in_port0>;
   };
  };
 };
etm@1,ecd40000 {
  compatible = "arm,coresight-etm4x","arm,primecell";
  reg = <0 0xecd40000 0 0x1000>;
  clocks = <&pclk>;
  clock-names = "apb_pclk";
  cpu = <&cpu1>;
  port {
   etm1_out_port: endpoint {
    remote-endpoint = <&funnel0_in_port1>;
   };
  };
 };
etm@2,ece40000 {
  compatible = "arm,coresight-etm4x","arm,primecell";
  reg = <0 0xece40000 0 0x1000>;
  clocks = <&pclk>;
  clock-names = "apb_pclk";
  cpu = <&cpu2>;
  port {
   etm2_out_port: endpoint {
    remote-endpoint = <&funnel0_in_port2>;
   };
  };
 };
etm@3,ecf40000 {
  compatible = "arm,coresight-etm4x","arm,primecell";
  reg = <0 0xecf40000 0 0x1000>;
  clocks = <&pclk>;
  clock-names = "apb_pclk";
  cpu = <&cpu3>;
  port {
   etm3_out_port: endpoint {
    remote-endpoint = <&funnel0_in_port3>;
   };
  };
 };
funnel0:funnel@0,ec801000 {
  compatible = "arm,coresight-funnel","arm,primecell";
  reg = <0 0xec801000 0 0x1000>;
  clocks = <&pclk>;
  clock-names = "apb_pclk";
  ports {
   #address-cells = <1>;
   #size-cells = <0>;
/* funnel output port */
   port@0 {
    reg = <0>;
    funnel0_out_port: endpoint {
     remote-endpoint = <&etf0_in_port>;
    };
   };
/* funnel input ports */
   port@1 {
    reg = <0>;
    funnel0_in_port0: endpoint {
     slave-mode;
     remote-endpoint = <&etm0_out_port>;
    };
   };
port@2 {
    reg = <1>;
    funnel0_in_port1: endpoint {
     slave-mode;
     remote-endpoint = <&etm1_out_port>;
    };
   };
port@3 {
    reg = <2>;
    funnel0_in_port2: endpoint {
     slave-mode;
     remote-endpoint = <&etm2_out_port>;
    };
   };
port@4 {
    reg = <3>;
    funnel0_in_port3: endpoint {
     slave-mode;
     remote-endpoint = <&etm3_out_port>;
    };
   };
  };
 };
etf0:etf@0,ec802000 {
  compatible = "arm,coresight-tmc","arm,primecell";
  reg = <0 0xec802000 0 0x1000>;
  clocks = <&pclk>;
  clock-names = "apb_pclk";
  ports {
   #address-cells = <1>;
   #size-cells = <0>;
   /* input port */
   port@0 {
    reg = <0>;
    etf0_in_port: endpoint {
     slave-mode;
     remote-endpoint = <&funnel0_out_port>;
    };
   };
/* output port */
   port@1 {
    reg = <0>;
    etf0_out_port: endpoint {
     remote-endpoint = <&funnel2_in_port0>;
    };
   };
  };
 };
/* A73 cluster internal coresight */
 etm@4,ed440000 {
  compatible = "arm,coresight-etm4x","arm,primecell";
  reg = <0 0xed440000 0 0x1000>;
  clocks = <&pclk>;
  clock-names = "apb_pclk";
  cpu = <&cpu4>;
  port {
   etm4_out_port: endpoint {
   remote-endpoint = <&funnel1_in_port0>;
   };
  };
 };
etm@5,ed540000 {
  compatible = "arm,coresight-etm4x","arm,primecell";
  reg = <0 0xed540000 0 0x1000>;
  clocks = <&pclk>;
  clock-names = "apb_pclk";
  cpu = <&cpu5>;
  port {
   etm5_out_port: endpoint {
   remote-endpoint = <&funnel1_in_port1>;
   };
  };
 };
etm@6,ed640000 {
  compatible = "arm,coresight-etm4x","arm,primecell";
  reg = <0 0xed640000 0 0x1000>;
  clocks = <&pclk>;
  clock-names = "apb_pclk";
  cpu = <&cpu6>;
  port {
   etm6_out_port: endpoint {
    remote-endpoint = <&funnel1_in_port2>;
   };
  };
 };
etm@7,ed740000 {
  compatible = "arm,coresight-etm4x","arm,primecell";
  reg = <0 0xed740000 0 0x1000>;
  clocks = <&pclk>;
  clock-names = "apb_pclk";
  cpu = <&cpu7>;
  port {
   etm7_out_port: endpoint {
    remote-endpoint = <&funnel1_in_port3>;
   };
  };
 };
funnel1:funnel@1,ed001000 {
  compatible = "arm,coresight-funnel","arm,primecell";
  reg = <0 0xed001000 0 0x1000>;
  clocks = <&pclk>;
  clock-names = "apb_pclk";
  ports {
   #address-cells = <1>;
   #size-cells = <0>;
/* funnel output port */
   port@0 {
    reg = <0>;
    funnel1_out_port: endpoint {
     remote-endpoint = <&etf1_in_port>;
    };
   };
/* funnel input ports */
   port@1 {
    reg = <0>;
    funnel1_in_port0: endpoint {
     slave-mode;
     remote-endpoint = <&etm4_out_port>;
    };
   };
port@2 {
    reg = <1>;
    funnel1_in_port1: endpoint {
     slave-mode;
     remote-endpoint = <&etm5_out_port>;
    };
   };
port@3 {
    reg = <2>;
    funnel1_in_port2: endpoint {
     slave-mode;
     remote-endpoint = <&etm6_out_port>;
    };
   };
port@4 {
    reg = <3>;
    funnel1_in_port3: endpoint {
     slave-mode;
     remote-endpoint = <&etm7_out_port>;
    };
   };
  };
 };
etf1:etf@1,ed002000 {
  compatible = "arm,coresight-tmc","arm,primecell";
  reg = <0 0xed002000 0 0x1000>;
  clocks = <&pclk>;
  clock-names = "apb_pclk";
  ports {
   #address-cells = <1>;
   #size-cells = <0>;
   /* input port */
   port@0 {
    reg = <0>;
    etf1_in_port: endpoint {
     slave-mode;
     remote-endpoint = <&funnel1_out_port>;
    };
   };
/* output port */
   port@1 {
    reg = <0>;
    etf1_out_port: endpoint {
     remote-endpoint = <&funnel2_in_port0>;
    };
   };
  };
 };
/* Top coresight config */
 funnel@2,ec031000 {
  compatible = "arm,coresight-funnel","arm,primecell";
  reg = <0 0xec031000 0 0x1000>;
  clocks = <&pclk>;
  clock-names = "apb_pclk";
  ports {
   #address-cells = <1>;
   #size-cells = <0>;
/* funnel output port */
   port@0 {
    reg = <0>;
    funnel2_out_port: endpoint {
     remote-endpoint = <&etf2_in_port>;
    };
   };
/* funnel input ports */
   /*  - both cluster ETFs go to port 0 - there may be another (hidden) funnel between these */
   port@1 {
    reg = <0>;
    funnel2_in_port0: endpoint {
     slave-mode;
     remote-endpoint = <&etf0_out_port>;
    };
   };
  };
 };
etf@2,ec036000 {
  compatible = "arm,coresight-tmc","arm,primecell";
  reg = <0 0xec036000 0 0x1000>;
  clocks = <&pclk>;
  clock-names = "apb_pclk";
  ports {
   #address-cells = <1>;
   #size-cells = <0>;
   /* input port */
   port@0 {
    reg = <0>;
    etf2_in_port: endpoint {
     slave-mode;
     remote-endpoint = <&funnel2_out_port>;
    };
   };
/* output port */
   port@1 {
    reg = <0>;
    etf2_out_port: endpoint {
     remote-endpoint = <&replicator0_in_port>;
    };
   };
  };
 };
replicator {
  compatible = "arm,coresight-replicator";
ports {
   #address-cells = <1>;
   #size-cells = <0>;
/* etr out port  */
   port@0 {
    reg = <0>;
    replicator0_out_port0: endpoint {
     remote-endpoint = <&etr_in_port>;
    };
   };
   /* TPIU out port  */
   port@1 {
    reg = <1>;
    replicator0_out_port1: endpoint {
     remote-endpoint = <&tpiu_in_port>;
    };
   };
   /* input port  */
   port@2 {
    reg = <0>;
    replicator0_in_port: endpoint {
     slave-mode;
     remote-endpoint = <&etf2_out_port>;
    };
   };
  };
 };
etr@0,ec033000 {
  compatible = "arm,coresight-tmc","arm,primecell";
  reg = <0 0xec033000 0 0x1000>;
  clocks = <&pclk>;
  clock-names = "apb_pclk";
  ports {
   #address-cells = <1>;
   #size-cells = <0>;
/* etr input port  */
   port@0 {
    reg = <0>;
    etr_in_port: endpoint {
     slave-mode;
     remote-endpoint = <&replicator0_out_port0>;
    };
   };
  };
 };
tpiu@ec032000 {
  compatible = "arm,coresight-tpiu", "arm,primecell";
  reg = <0 0xec032000 0 0x1000>;
clocks = <&pclk>;
  clock-names = "apb_pclk";
  port {
   tpiu_in_port: endpoint {
     slave-mode;
     remote-endpoint = <&replicator0_out_port1>;
   };
  };
 };
};
};
```
On occasions when the trace succeeded (which i could not fathom when it will work and when it will crash), I used ptm2human to acquire the following decoded log:
```bash
Reading cs.bin
Decode trace stream of ID 0
Syncing the trace stream...
Decode trace stream of ID 1
Syncing the trace stream...
Decode trace stream of ID 2
Syncing the trace stream...
Decode trace stream of ID 3
Syncing the trace stream...
Decode trace stream of ID 4
Syncing the trace stream...
Decode trace stream of ID 5
Syncing the trace stream...
Decode trace stream of ID 6
Syncing the trace stream...
Decode trace stream of ID 7
Syncing the trace stream...
Decode trace stream of ID 8
Syncing the trace stream...
Decode trace stream of ID 9
Syncing the trace stream...
Decode trace stream of ID 10
Syncing the trace stream...
Decode trace stream of ID 11
Syncing the trace stream...
Decode trace stream of ID 12
Syncing the trace stream...
Decode trace stream of ID 13
Syncing the trace stream...
Decode trace stream of ID 14
Syncing the trace stream...
Decode trace stream of ID 15
Syncing the trace stream...
Decode trace stream of ID 16
Syncing the trace stream...
Decode trace stream of ID 17
Syncing the trace stream...
Decode trace stream of ID 18
Syncing the trace stream...
Decode trace stream of ID 19
Syncing the trace stream...
Decode trace stream of ID 20
Syncing the trace stream...
Decode trace stream of ID 21
Syncing the trace stream...
Decode trace stream of ID 22
Syncing the trace stream...
Decode trace stream of ID 23
Syncing the trace stream...
Decoding the trace stream...
TraceInfo - Cycle count disabled,
            Tracing of conditional non-branch instruction disabled,
            No explicit tracing of load instructions,
            No explicit tracing of store instructions,
            p0_key = 0x0,
            curr_spec_depth = 0,
            cc_threshold = 0x0
Context - Context ID = 0x0,
          VMID = 0x0,
          Exception level = EL0,
          Security = NS,
          32-bit instruction
Address - Instruction address 0x0000005edb77ed10, Instruction set Aarch32 (Thumb)
Mispredict
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - N
Commit - 1
Address - Instruction address 0x0000007c010c9388, Instruction set Aarch32 (Thumb)
ATOM - N
Commit - 1
ATOM - E
Commit - 1
ATOM - N
Commit - 1
ATOM - E
Commit - 1
ATOM - N
Commit - 1
ATOM - E
Commit - 1
Address - Instruction address 0x0000007c01167c70, Instruction set Aarch32 (Thumb)
ATOM - N
Commit - 1
ATOM - N
Commit - 1
ATOM - N
Commit - 1
ATOM - E
Commit - 1
Address - Instruction address 0x0000007c010ccf68, Instruction set Aarch32 (Thumb)
ATOM - N
Commit - 1
ATOM - N
Commit - 1
ATOM - N
Commit - 1
ATOM - N
Commit - 1
ATOM - N
Commit - 1
ATOM - N
Commit - 1
ATOM - N
Commit - 1
ATOM - N
Commit - 1
ATOM - N
Commit - 1
ATOM - N
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
Address - Instruction address 0x0000007c010c93b0, Instruction set Aarch32 (Thumb)
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
ATOM - E
Commit - 1
Address - Instruction address 0x0000005edb77ed44, Instruction set Aarch32 (Thumb)
ATOM - E
Commit - 1
Address - Instruction address 0x0000005edb77ec98, Instruction set Aarch32 (Thumb)
Complete decode of the trace stream
```
Once again, I am awfully sorry for the abnormally long post. However, I have been trying to work on this for the past 6 weeks and I have not been able to understand the entire framework and hence I am getting desperate to seek professional help.
I have attached the source code and the log file to this email to hopefully help you understand my problems better.
Yours Sincerely,
Jeremy
This email may contain confidential and/or proprietary information that is exempt from disclosure under applicable law and is intended for receipt and use solely by the addressee(s) named above. If you are not the intended recipient, you are notified that any use, dissemination, distribution, or copying of this email, or any attachment, is strictly prohibited. Please delete the email immediately and inform the sender. Thank You
The above message may contain confidential and/or proprietary information that is exempt from disclosure under applicable law and is intended for receipt and use solely by the addressee(s) named above. If you are not the intended recipient, you are hereby notified that any use, dissemination, distribution, or copying of this message, or any attachment, is strictly prohibited. If you have received this email in error, please inform the sender immediately by reply e-mail or telephone, reversing the charge if necessary. Please delete the message thereafter. Thank you.

ETMv4