Hi Jean,
On Tue, May 06, 2014 at 04:55:33PM +0100, Jean Pihet wrote:
> Adding libdw DWARF post unwind support, which is part
> of elfutils-devel/libdw-dev package from version 0.158.
>
> Note: the libdw code needs some support for dwarf unwinding
> on ARM64, this code is submitted seperately on the elfutils
> ML.
>
> The new code is contained in unwin-libdw.c object, and
> implements unwind__get_entries unwind interface function.
Are you planning to implement support for 32-bit ARM too? If so, we'll need
compat handling here again (your favourite!).
> +bool libdw__arch_set_initial_registers(Dwfl_Thread *thread, void *arg)
> +{
> + struct unwind_info *ui = arg;
> + struct regs_dump *user_regs = &ui->sample->user_regs;
> + Dwarf_Word dwarf_regs[PERF_REG_ARM64_MAX];
Shouldn't this be PERF_REG_ARM64_MAX - 1?
Will
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