On 19/05/2022 14:30, German Gomez via Elfutils-devel wrote:
> Hi Mark, thanks for looking, and sorry for the delay
>
> On 28/04/2022 20:56, Mark Wielaard wrote:
>> Hi German,
>>
>> On Mon, Apr 25, 2022 at 02:03:07PM +, German Gomez via Elfutils-devel
>> wro
Hi Mark, thanks for looking, and sorry for the delay
On 28/04/2022 20:56, Mark Wielaard wrote:
> Hi German,
>
> On Mon, Apr 25, 2022 at 02:03:07PM +0000, German Gomez via Elfutils-devel
> wrote:
>> I've included a set of patches in order to demangle return addresses in
&g
Add user API for setting the PAC mask.
The function is intended to be called in
Dwfl_Thread_Callbacks.set_initial_registers.
Testing notes:
... consider the following program.c
| int a = 0;
| void leaf(void) {
| for (;;)
| a += a;
| }
| void parent(void) {
| leaf();
| }
| int
Demangle mangled return addresses on AARCH64. The value of the masks is
stored in the struct Dwfl_Thread.
Signed-off-by: German Gomez
---
libdwfl/dwfl_frame.c | 3 +++
libdwfl/frame_unwind.c | 14 +-
libdwfl/libdwflP.h | 7 +++
3 files changed, 23 insertions(+), 1 deletio
Implement DW_CFA_AARCH64_negate_ra_state in accordance with the DWARF
AARCH64 ABI [1].
Followup commits will use the value of this register to remove the PAC
from return addresses.
[1]
https://github.com/ARM-software/abi-aa/blob/main/aadwarf64/aadwarf64.rst#44call-frame-instructions
Signed-off-
This register will be used to indicate whether a return address is
mangled with a PAC or not, in accordance with the DWARF AARCH64 ABI [1].
[1]
https://github.com/ARM-software/abi-aa/blob/main/aadwarf64/aadwarf64.rst#41dwarf-register-names
Signed-off-by: German Gomez
---
backends/aarch64_init.
Hi,
I've included a set of patches in order to demangle return addresses in
aarch64 platforms with pointer authentication.
Besides adding the implementation of the negate_ra_state opcode, there
is a new function in the libdwfl.h header to feed the PAC masks to the
library.
Let me know if there a
