Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

UCM/BISTRO: Parse libcuda debug hooks - v1.11.x #7197

Merged
merged 1 commit into from
Aug 6, 2021
Merged

UCM/BISTRO: Parse libcuda debug hooks - v1.11.x #7197

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
9 changes: 9 additions & 0 deletions src/ucm/bistro/bistro_x86_64.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -83,6 +83,9 @@ typedef struct {
/* ModR/M encoding for EBP/BP/CH/MM5/XMM5, AH/SP/ESP/MM4/XMM4 */
#define UCM_BISTRO_X86_MODRM_BP_SP 0xE5 /* 11 100 101 */

/* ModR/M encoding for CMP [RIP+x], Imm32 */
#define UCM_BISTRO_X86_MODRM_CMP_RIP 0x3D /* 11 111 101 */


/*
* Find the minimal length of initial instructions in the function which can be
Expand Down Expand Up @@ -144,6 +147,12 @@ static size_t ucm_bistro_detect_pic_prefix(const void *func, size_t min_length)
((opcode & UCM_BISTRO_X86_MOV_IR_MASK) == UCM_BISTRO_X86_MOV_IR)) {
offset += sizeof(uint32_t);
continue;
} else if ((rex == 0) && (opcode == UCM_BISTRO_X86_IMM_GRP1_EV_IZ)) {
modrm = *(uint8_t*)UCS_PTR_BYTE_OFFSET(func, offset++);
if (modrm == UCM_BISTRO_X86_MODRM_CMP_RIP) {
offset += sizeof(uint32_t) * 2; /* skip disp32 and imm32 */
}
continue;
}

/* unsupported instruction - bail */
Expand Down