[Crash-utility] [PATCH RFC][makedumpfile 10/10] Introducing 2 eppic scripts to test the dwarf/btf eppic extension

This patch will introduce 2 eppic scripts. One is for filtering out amdgpu mm pages, the other is for printing all tasks VMAs. dwarf & btf eppic extension should produce the same result for every eppic script, mainly for test use. Signed-off-by: Tao Liu <ltao(a)redhat.com&gt; --- eppic_scripts/filter_amdgpu_mm_pages.c | 36 ++++++++++++++++++++++++++ eppic_scripts/print_all_vma.c | 29 +++++++++++++++++++++ 2 files changed, 65 insertions(+) create mode 100644 eppic_scripts/filter_amdgpu_mm_pages.c create mode 100644 eppic_scripts/print_all_vma.c diff --git a/eppic_scripts/filter_amdgpu_mm_pages.c b/eppic_scripts/filter_amdgpu_mm_pages.c new file mode 100644 index 0000000..2936a54 --- /dev/null +++ b/eppic_scripts/filter_amdgpu_mm_pages.c @@ -0,0 +1,36 @@ +int main() +{ + struct task_struct *p; + unsigned long p_off; + int i, c; + struct vm_area_struct *vma; + struct ttm_buffer_object *tbo; + unsigned long pfn, num, mt; + + p = (struct task_struct *)&init_task; + p_off = (unsigned long)&(p->tasks) - (unsigned long)p; + + do { + if (!(p->mm)) { + p = (struct task_struct *)((unsigned long)(p->tasks.next) - p_off); + continue; + } + mt = (unsigned long)&(p->mm->mm_mt); + + c = maple_count((char *)mt); + for (i = 0; i < c; i++) { + vma = (struct vm_area_struct *)maple_elem((char *)mt, i); + if (vma->vm_ops == &amdgpu_gem_vm_ops) { + tbo = (struct ttm_buffer_object *)(vma->vm_private_data); + if (tbo->ttm) { + num = (unsigned long)(tbo->ttm->num_pages); + pfn = ((unsigned long)(tbo->ttm->pages[0]) - *(unsigned long *)&vmemmap_base) / sizeof(struct page); + filter_pages(pfn, num); + } + } + } + p = (struct task_struct *)((unsigned long)(p->tasks.next) - p_off); + } while(p != &init_task); + + return 1; +} diff --git a/eppic_scripts/print_all_vma.c b/eppic_scripts/print_all_vma.c new file mode 100644 index 0000000..e8e49c2 --- /dev/null +++ b/eppic_scripts/print_all_vma.c @@ -0,0 +1,29 @@ +int main() +{ + struct task_struct *p; + unsigned long p_off; + int i, c; + struct vm_area_struct *vma; + unsigned long mt; + + p = (struct task_struct *)&init_task; + p_off = (unsigned long)&(p->tasks) - (unsigned long)p; + + do { + if (!(p->mm)) { + p = (struct task_struct *)((unsigned long)(p->tasks.next) - p_off); + continue; + } + printf("PID: %d\n", (int)(p->pid)); + mt = (unsigned long)&(p->mm->mm_mt); + + c = maple_count((char *)mt); + for (i = 0; i < c; i++) { + vma = (struct vm_area_struct *)maple_elem((char *)mt, i); + printf("%lx\n", vma); + } + p = (struct task_struct *)((unsigned long)(p->tasks.next) - p_off); + } while(p != &init_task); + + return 1; +} -- 2.47.0