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From: Sylwester Garncarek <sylwester.garncarek@gmail.com>
To: gdb@sourceware.org
Subject: AArch64 and fixed return address register (x30)
Date: Tue, 3 Jan 2023 07:50:19 +0700	[thread overview]
Message-ID: <130c9bae-22d9-2d74-45ec-4e4b7ee59c00@gmail.com> (raw)

Hi All,

I've been working on adding CFI directives to assembler sources (GNU 
Asm) of an RTOS and I noticed that GDB seems to ignore 
.cfi_return_column directive. I checked GDB sources and indeed for 
AArch64 architecture the return address is fixed to x30 register. 
Normally this is not a problem, but for exception/interrupt the return 
address is in ELR_mode register. Because GDB is fixed to x30, there is 
no way to get a valid call stack. Are there any plans to make the return 
address register adjustable according to the info provided in DWARF data?

Thanks,
Sylwester

             reply	other threads:[~2023-01-03  0:50 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-03  0:50 Sylwester Garncarek [this message]
2023-01-05 14:36 ` Luis Machado
     [not found]   ` <d394976c-451b-cfd6-a8dc-3ad715221024@gmail.com>
2023-01-06  9:37     ` Luis Machado

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