How to trace the register values of executed instructions in QEMU?

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0
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I can get the disassembled instructions with:

qemu-system-aarch64 -d in_asm

Sample format:

----------------

IN:

0xfffffff0:  ea 5b e0 00 f0           ljmpw    $0xf000:$0xe05b



----------------

IN:

0x000fe05b:  2e 66 83 3e 88 61 00     cmpl     $0, %cs:0x6188

0x000fe062:  0f 85 7b f0              jne      0xd0e1

but it would also be super useful if I could see the value of the registers involved in an instruction.

For example, when loading from memory:

ldr x0, [x1]

I would like to know what value was loaded into x0, and ideally also the value of the address that was read x1.

Is this possible with the -d or -trace or some other trace mechanism?

I've seen some related old threads and it does not seem promising:

https://lists.gnu.org/archive/html/qemu-devel/2015-06/msg07479.html

https://lists.gnu.org/archive/html/qemu-devel/2014-04/msg02856.html

https://lists.gnu.org/archive/html/qemu-devel/2012-08/msg03057.html

I know how to do it with GDB, but a full trace would be very slow to do.

edited Nov 23 at 9:40

asked Nov 23 at 9:12

Ciro Santilli 新疆改造中心六四事件法轮功

3,84622734

add a comment |

up vote
0
down vote

favorite

I can get the disassembled instructions with:

qemu-system-aarch64 -d in_asm

Sample format:

----------------

IN:

0xfffffff0:  ea 5b e0 00 f0           ljmpw    $0xf000:$0xe05b



----------------

IN:

0x000fe05b:  2e 66 83 3e 88 61 00     cmpl     $0, %cs:0x6188

0x000fe062:  0f 85 7b f0              jne      0xd0e1

but it would also be super useful if I could see the value of the registers involved in an instruction.

For example, when loading from memory:

ldr x0, [x1]

I would like to know what value was loaded into x0, and ideally also the value of the address that was read x1.

Is this possible with the -d or -trace or some other trace mechanism?

I've seen some related old threads and it does not seem promising:

https://lists.gnu.org/archive/html/qemu-devel/2015-06/msg07479.html

https://lists.gnu.org/archive/html/qemu-devel/2014-04/msg02856.html

https://lists.gnu.org/archive/html/qemu-devel/2012-08/msg03057.html

I know how to do it with GDB, but a full trace would be very slow to do.

edited Nov 23 at 9:40

asked Nov 23 at 9:12

Ciro Santilli 新疆改造中心六四事件法轮功

3,84622734

add a comment |

up vote
0
down vote

favorite

I can get the disassembled instructions with:

qemu-system-aarch64 -d in_asm

Sample format:

----------------

IN:

0xfffffff0:  ea 5b e0 00 f0           ljmpw    $0xf000:$0xe05b



----------------

IN:

0x000fe05b:  2e 66 83 3e 88 61 00     cmpl     $0, %cs:0x6188

0x000fe062:  0f 85 7b f0              jne      0xd0e1

but it would also be super useful if I could see the value of the registers involved in an instruction.

For example, when loading from memory:

ldr x0, [x1]

I would like to know what value was loaded into x0, and ideally also the value of the address that was read x1.

Is this possible with the -d or -trace or some other trace mechanism?

I've seen some related old threads and it does not seem promising:

https://lists.gnu.org/archive/html/qemu-devel/2015-06/msg07479.html

https://lists.gnu.org/archive/html/qemu-devel/2014-04/msg02856.html

https://lists.gnu.org/archive/html/qemu-devel/2012-08/msg03057.html

I know how to do it with GDB, but a full trace would be very slow to do.

edited Nov 23 at 9:40

asked Nov 23 at 9:12

Ciro Santilli 新疆改造中心六四事件法轮功

3,84622734

I can get the disassembled instructions with:

qemu-system-aarch64 -d in_asm

Sample format:

----------------

IN:

0xfffffff0:  ea 5b e0 00 f0           ljmpw    $0xf000:$0xe05b



----------------

IN:

0x000fe05b:  2e 66 83 3e 88 61 00     cmpl     $0, %cs:0x6188

0x000fe062:  0f 85 7b f0              jne      0xd0e1

but it would also be super useful if I could see the value of the registers involved in an instruction.

For example, when loading from memory:

ldr x0, [x1]

I would like to know what value was loaded into x0, and ideally also the value of the address that was read x1.

Is this possible with the -d or -trace or some other trace mechanism?

I've seen some related old threads and it does not seem promising:

https://lists.gnu.org/archive/html/qemu-devel/2015-06/msg07479.html

https://lists.gnu.org/archive/html/qemu-devel/2014-04/msg02856.html

https://lists.gnu.org/archive/html/qemu-devel/2012-08/msg03057.html

I know how to do it with GDB, but a full trace would be very slow to do.

qemu

edited Nov 23 at 9:40

asked Nov 23 at 9:12

Ciro Santilli 新疆改造中心六四事件法轮功

3,84622734

edited Nov 23 at 9:40

asked Nov 23 at 9:12

Ciro Santilli 新疆改造中心六四事件法轮功

3,84622734

edited Nov 23 at 9:40

asked Nov 23 at 9:12

Ciro Santilli 新疆改造中心六四事件法轮功

3,84622734

asked Nov 23 at 9:12

Ciro Santilli 新疆改造中心六四事件法轮功

3,84622734

asked Nov 23 at 9:12

Ciro Santilli 新疆改造中心六四事件法轮功

3,84622734

add a comment |

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