From: Borislav Petkov <bp@alien8.de>
To: Peter Zijlstra <peterz@infradead.org>
Cc: x86@kernel.org, linux-kernel@vger.kernel.org,
rostedt@goodmis.org, mhiramat@kernel.org, bristot@redhat.com,
jbaron@akamai.com, torvalds@linux-foundation.org,
tglx@linutronix.de, mingo@kernel.org, namit@vmware.com,
hpa@zytor.com, luto@kernel.org, ard.biesheuvel@linaro.org,
jpoimboe@redhat.com
Subject: Re: [RESEND][PATCH v3 10/17] x86/static_call: Add inline static call implementation for x86-64
Date: Thu, 26 Mar 2020 16:17:50 +0100 [thread overview]
Message-ID: <20200326151750.GC11398@zn.tnic> (raw)
In-Reply-To: <20200324142245.880990363@infradead.org>
On Tue, Mar 24, 2020 at 02:56:13PM +0100, Peter Zijlstra wrote:
> --- a/tools/objtool/check.c
> +++ b/tools/objtool/check.c
> @@ -15,6 +15,7 @@
>
> #include <linux/hashtable.h>
> #include <linux/kernel.h>
> +#include <linux/static_call_types.h>
>
> #define FAKE_JUMP_OFFSET -1
>
> @@ -1345,6 +1346,21 @@ static int read_retpoline_hints(struct o
> return 0;
> }
>
> +static int read_static_call_tramps(struct objtool_file *file)
> +{
> + struct section *sec, *sc_sec = find_section_by_name(file->elf, ".static_call.text");
> + struct symbol *func;
if (!sc_sec)
return;
no?
I mean, it is enabled by default on X86_64 but not on 32-bit. Or will it
be?
--
Regards/Gruss,
Boris.
https://people.kernel.org/tglx/notes-about-netiquette
next prev parent reply other threads:[~2020-03-26 15:17 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-24 13:56 [RESEND][PATCH v3 00/17] Add static_call() Peter Zijlstra
2020-03-24 13:56 ` [RESEND][PATCH v3 01/17] notifier: Fix broken error handling pattern Peter Zijlstra
2020-03-24 13:56 ` [RESEND][PATCH v3 02/17] module: Fix up module_notifier return values Peter Zijlstra
2020-03-24 13:56 ` [RESEND][PATCH v3 03/17] module: Properly propagate MODULE_STATE_COMING failure Peter Zijlstra
2020-03-25 17:35 ` Jessica Yu
2020-03-27 4:51 ` Josh Poimboeuf
2020-03-27 12:04 ` Miroslav Benes
2020-03-24 13:56 ` [RESEND][PATCH v3 04/17] jump_label,module: Fix module lifetime for __jump_label_mod_text_reserved Peter Zijlstra
2020-03-24 13:56 ` [RESEND][PATCH v3 05/17] compiler.h: Make __ADDRESSABLE() symbol truly unique Peter Zijlstra
2020-03-24 13:56 ` [RESEND][PATCH v3 06/17] static_call: Add basic static call infrastructure Peter Zijlstra
2020-03-26 16:42 ` Nadav Amit
2020-03-26 17:01 ` Peter Zijlstra
2020-03-26 18:09 ` Nadav Amit
2020-03-26 18:28 ` Peter Zijlstra
2020-03-26 19:02 ` Nadav Amit
2020-03-26 19:13 ` Peter Zijlstra
2020-03-24 13:56 ` [RESEND][PATCH v3 07/17] static_call: Add inline " Peter Zijlstra
2020-03-26 15:54 ` Borislav Petkov
2020-03-24 13:56 ` [RESEND][PATCH v3 08/17] static_call: Avoid kprobes on inline static_call()s Peter Zijlstra
2020-03-24 13:56 ` [RESEND][PATCH v3 09/17] x86/static_call: Add out-of-line static call implementation Peter Zijlstra
2020-03-26 14:57 ` Borislav Petkov
2020-04-06 1:08 ` Fangrui Song
2020-04-06 11:04 ` Peter Zijlstra
2020-04-06 18:29 ` Nick Desaulniers
2020-03-24 13:56 ` [RESEND][PATCH v3 10/17] x86/static_call: Add inline static call implementation for x86-64 Peter Zijlstra
2020-03-26 15:17 ` Borislav Petkov [this message]
2020-03-26 16:06 ` Peter Zijlstra
2020-03-24 13:56 ` [RESEND][PATCH v3 11/17] static_call: Simple self-test Peter Zijlstra
2020-03-26 15:44 ` Borislav Petkov
2020-03-26 17:08 ` Peter Zijlstra
2020-03-26 17:33 ` Borislav Petkov
2020-03-24 13:56 ` [RESEND][PATCH v3 12/17] tracepoint: Optimize using static_call() Peter Zijlstra
2020-03-24 13:56 ` [RESEND][PATCH v3 13/17] x86/alternatives: Teach text_poke_bp() to emulate RET Peter Zijlstra
2020-03-24 13:56 ` [RESEND][PATCH v3 14/17] static_call: Add static_cond_call() Peter Zijlstra
2020-03-24 16:14 ` Linus Torvalds
2020-03-24 16:22 ` Andy Lutomirski
2020-03-24 16:33 ` Linus Torvalds
2020-03-24 17:03 ` Peter Zijlstra
2020-03-25 18:13 ` Peter Zijlstra
2020-03-25 18:26 ` Linus Torvalds
2020-03-25 19:34 ` hpa
2020-03-25 20:52 ` Linus Torvalds
2020-03-25 22:07 ` Peter Zijlstra
2020-03-24 16:54 ` Peter Zijlstra
2020-03-26 23:37 ` Rasmus Villemoes
2020-03-27 10:08 ` Peter Zijlstra
2020-03-27 13:25 ` Rasmus Villemoes
2020-03-24 13:56 ` [RESEND][PATCH v3 15/17] static_call: Handle tail-calls Peter Zijlstra
2020-03-24 13:56 ` [RESEND][PATCH v3 16/17] static_call: Allow early init Peter Zijlstra
2020-03-24 13:56 ` [RESEND][PATCH v3 17/17] x86/perf, static_call: Optimize x86_pmu methods Peter Zijlstra
2020-03-25 17:49 ` [RESEND][PATCH v3 00/17] Add static_call() Peter Zijlstra
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