Re: [PATCH] arm64: ftrace: Fix to enable syscall events on arm64

From: Steven Rostedt
Date: Tue Nov 27 2018 - 13:19:04 EST


On Tue, 27 Nov 2018 16:58:49 +0000
Will Deacon <will.deacon@xxxxxxx> wrote:

> This looks fine to me, but I'm curious about whether this is supposed to
> work with compat syscalls as well, where the prefix is "__arm64_compat_".
>
> If we broadly follow the x86 lead, we'd have:
>
> return (!strncmp(sym, "__arm64_", 8) && !strcmp(sym + 8, name)) ||
> (!strncmp(sym, "__arm64_compat_", 15) && !strcmp(sym + 15, name));
>
> Do we need to handle compat (i.e. 32-bit) tasks here?

Only if you want to trace compat syscalls as well ;-)

-- Steve