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Rtoax opened this issue Jul 24, 2022 · 1 comment
Open

user space ftrace support? #1

Rtoax opened this issue Jul 24, 2022 · 1 comment
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enhancement New feature or request todo TODO

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Rtoax commented Jul 24, 2022

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@Rtoax Rtoax self-assigned this Jul 24, 2022
@Rtoax Rtoax added the enhancement New feature or request label Jul 24, 2022
@Rtoax Rtoax changed the title When support to user space ftrace? user space ftrace support? Jul 24, 2022
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Rtoax commented Oct 8, 2022 •
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You can check branch elfshow to see the backup, branch main is main line now. It's support user space ftrace right now, but now finish development. So, i just close this issue right now.

@Rtoax Rtoax closed this as completed Oct 8, 2022
Rtoax added a commit that referenced this issue Jan 9, 2024
@Rtoax
task: Fix SEGV error if get auxv failed.
7007300 
Debug:

    $ gdb ultask
    (gdb) set args -p 18651 --auxv -v --log-level=9
    (gdb) r
    22:25:43 [ERROR][task.c load_task_auxv:1248] Not found AT_BASE in /proc/18651/auxv

    Program received signal SIGSEGV, Segmentation fault.
    0x000000000040b005 in free_task_vmas (task=0x5312a0) at /home/rongtao/Git/ulpatch/src/utils/task.c:1134
    1134		list_for_each_entry_safe(vma, tmpvma, &task->vma_list, node_list) {
    (gdb) bt
    #0  0x000000000040b005 in free_task_vmas (task=0x5312a0) at /home/rongtao/Git/ulpatch/src/utils/task.c:1134
    #1  0x000000000040c1a5 in free_task (task=0x5312a0) at /home/rongtao/Git/ulpatch/src/utils/task.c:1492
    #2  0x000000000040bdf4 in open_task (pid=18651, flag=-1) at /home/rongtao/Git/ulpatch/src/utils/task.c:1418
    #3  0x000000000040579d in main (argc=6, argv=0x7fffffffd898) at /home/rongtao/Git/ulpatch/src/ultask.c:302
    (gdb) frame 0
    #0  0x000000000040b005 in free_task_vmas (task=0x5312a0) at /home/rongtao/Git/ulpatch/src/utils/task.c:1134
    1134		list_for_each_entry_safe(vma, tmpvma, &task->vma_list, node_list) {
    (gdb) list
    1129
    1130	int free_task_vmas(struct task *task)
    1131	{
    1132		struct vma_struct *vma, *tmpvma;
    1133
    1134		list_for_each_entry_safe(vma, tmpvma, &task->vma_list, node_list) {
    1135			unlink_vma(task, vma);
    1136			free_vma(vma);
    1137		}
    1138
    (gdb) p task->vma_list
    $1 = {next = 0x0, prev = 0x0}

Signed-off-by: Rong Tao <[email protected]>
@Rtoax Rtoax reopened this Feb 19, 2024
Rtoax added a commit that referenced this issue Sep 19, 2024
@Rtoax
task: Fix segvfault of task_load_vma_elf_syms()
2bd99aa 
    (gdb) bt
    #0  0x0000000000413969 in task_load_vma_elf_syms (vma=0x3538bf60) at /home/rongtao/Git/ulpatch/src/utils/task-symbol.c:426
    #1  0x0000000000411136 in open_task (pid=95830, flag=-33) at /home/rongtao/Git/ulpatch/src/utils/task.c:1404
    #2  0x00000000004051ce in show_task_patch_info (pid=95830) at /home/rongtao/Git/ulpatch/src/ulpinfo.c:120
    #3  0x000000000040558b in main (argc=3, argv=0x7fffabb17518) at /home/rongtao/Git/ulpatch/src/ulpinfo.c:189
    (gdb) frame 0
    #0  0x0000000000413969 in task_load_vma_elf_syms (vma=0x3538bf60) at /home/rongtao/Git/ulpatch/src/utils/task-symbol.c:426
    426
    (gdb) p *vma
    $1 = {vm_start = 4214784, vm_end = 4218880, vm_pgoff = 0, major = 0, minor = 42, inode = 22959,
      name_ = "/tmp/ulpatch/95830/map_files/ulp-EmyOMc", '\000' <repeats 4056 times>, perms = "rwxs", prot = 7,
      type = VMA_ULPATCH, is_elf = true, is_share_lib = false, {is_matched_phdr = false, phdr = {p_type = 0, p_flags = 0,
          p_offset = 0, p_vaddr = 0, p_paddr = 0, p_filesz = 0, p_memsz = 0, p_align = 0}}, vma_elf = 0x0,
      elf_file = 0x353c53e0, bfd_elf_file = 0x353c7250, ulp = 0x353b8770, task = 0x353862a0, node_list = {next = 0x3538e108,
        prev = 0x3538bf08}, node_rb = {__rb_parent_color = 892907033, rb_right = 0x3538e118, rb_left = 0x3538bf18},
      leader = 0x3538bf60, siblings = {next = 0x3538d038, prev = 0x3538d038}, voffset = 0}
    (gdb) p vma->vma_elf
    $2 = (struct vma_elf_mem *) 0x0

Signed-off-by: Rong Tao <[email protected]>
Rtoax added a commit that referenced this issue Sep 20, 2024
@Rtoax
Add --info argument for all commands
c0f198a 
    $ ultask --info
    System
      OS: Linux 6.10.10-200.fc40.x86_64 #1 SMP PREEMPT_DYNAMIC Thu Sep 12 18:26:09 UTC 2024
      Arch: x86_64
      Glibc: 2.39-stable
    Build
      version: v0.5.9-1-g917f-dirty
      GNUC: 14.2.1
      ULP version: 3

Signed-off-by: Rong Tao <[email protected]>
Rtoax added a commit that referenced this issue Sep 22, 2024
@Rtoax
--info: Add Support
478380d 
$ ultask --info
System
  OS: Linux 6.10.10-200.fc40.x86_64 #1 SMP PREEMPT_DYNAMIC Thu Sep 12 18:26:09 UTC 2024
  Arch: x86_64
  Glibc: 2.39-stable

Build
  version: v0.5.9-4-g5fbb-dirty
  GNUC(GCC): 14.2.1
  ULP version: 3
  Support: capstone libunwind bfd

Signed-off-by: Rong Tao <[email protected]>
Rtoax added a commit that referenced this issue Sep 23, 2024
@Rtoax
--info: Add build time
6d3e018 
    $ ultask --info
    System
      OS: Linux 6.10.10-200.fc40.x86_64 #1 SMP PREEMPT_DYNAMIC Thu Sep 12 18:26:09 UTC 2024
      Arch: x86_64
      Glibc: 2.39-stable

    Build
      version: v0.5.9-9-g5689-dirty
      build time: 2024/09/23 08:57:55
      GNUC(GCC): 14.2.1
      Support: capstone libunwind bfd

    ULPatch
      ULP patch version: 3

Signed-off-by: Rong Tao <[email protected]>
Rtoax added a commit that referenced this issue Sep 26, 2024
@Rtoax
--info: Print libc.so path
17f7de1 
System
  OS: Linux 6.10.10-200.fc40.x86_64 #1 SMP PREEMPT_DYNAMIC Thu Sep 12 18:26:09 UTC 2024
  Arch: x86_64
  Glibc: 2.39-stable /usr/lib64/libc.so.6

Signed-off-by: Rong Tao <[email protected]>
Rtoax added a commit that referenced this issue Oct 13, 2024
@Rtoax
--info: Display libunwind version
fb76237 
    $ ./src/ultask -vvvv --info
    System
      OS: Linux 4.18.0-553.22.1.el8_10.x86_64 #1 SMP Tue Sep 24 05:16:59 EDT 2024
      Arch: x86_64
      Glibc: 2.28-stable (null)

    Build
      version: v0.5.10-8-gc1ea-dirty
      build time: 2024/10/13 11:28:17
      GNUC(GCC): 8.5.0
      Support:
           bfd yes
           libunwind yes, version 1.3.1
           capstone yes, version 4.0.2

    ULPatch
      ULP patch version: 3

    Run
      Verbose 4

Signed-off-by: Rong Tao <[email protected]>
Rtoax added a commit that referenced this issue Oct 14, 2024
@Rtoax
--info: Support
2a94b64 
ultask --info
System
  OS: Linux 6.10.6+bpo-rt-amd64 #1 SMP PREEMPT_RT Debian 6.10.6-1~bpo12+1 (2024-08-26)
  Arch: x86_64
  Glibc: 2.36-stable (null)

Build
  version: v0.5.10-15-ga718-dirty
  build time: 2024/10/13 21:29:05
  OS: Debian GNU/Linux 12 (bookworm)
  GNUC(GCC): 12.2.0
  GNU(GLibc): 2.36

Support:
  bfd yes
  libunwind yes (build version 1.6.2)
  capstone yes (build version 4.0.2)

ULPatch
  ULP patch version: 3

Run
  Verbose 0

Signed-off-by: Rong Tao <[email protected]>
Rtoax added a commit that referenced this issue Oct 29, 2024
@Rtoax
capstone: Distinguish buildtime and runtime version
7c764c4 
    ulpinfo --info
    System
      OS: Linux 6.11.4-201.fc40.x86_64 #1 SMP PREEMPT_DYNAMIC Sun Oct 20 15:04:22 UTC 2024
      Arch: x86_64
      Glibc: 2.39-stable (null)

    Build
      version: v0.5.10-27-ged66
      build time: 2024/10/29 17:32:06
      OS: Fedora Linux 40 (Server Edition)
      GNUC(GCC): 14.2.1
      GNU(GLibc): 2.39

    Support
      bfd yes
      libunwind yes (buildtime version 1.8.0)
      capstone yes (buildtime version 5.0.1, runtime version 5.0)

    ULPatch
      ULP patch version: 3
      ulftrace yes
      ultask yes
      testing yes
      man yes

    Run
      Verbose 0

Signed-off-by: Rong Tao <[email protected]>
@Rtoax Rtoax added the todo TODO label Jan 1, 2025
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