From: Peter Zijlstra <peterz@infradead.org>
To: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: tglx@linutronix.de, linux-kernel@vger.kernel.org, x86@kernel.org,
mhiramat@kernel.org, mbenes@suse.cz, brgerst@gmail.com
Subject: Re: [PATCH v2 16/19] objtool: Implement noinstr validation
Date: Wed, 18 Mar 2020 11:06:00 +0100 [thread overview]
Message-ID: <20200318100600.GD20730@hirez.programming.kicks-ass.net> (raw)
In-Reply-To: <20200318090309.GC20730@hirez.programming.kicks-ass.net>
On Wed, Mar 18, 2020 at 10:03:09AM +0100, Peter Zijlstra wrote:
> On Tue, Mar 17, 2020 at 04:00:08PM -0500, Josh Poimboeuf wrote:
> > On Tue, Mar 17, 2020 at 06:02:50PM +0100, Peter Zijlstra wrote:
> > > @@ -46,5 +49,9 @@ int cmd_check(int argc, const char **arg
> > >
> > > objname = argv[0];
> > >
> > > + s = strstr(objname, "vmlinux.o");
> > > + if (s && !s[9])
> > > + vmlinux = true;
> > > +
> >
> > I think this would be slightly cleaner:
> >
> > if (!strcmp(basename(objname), "vmlinux.o"))
> > vmlinux = true;
>
> Ah, indeed. I totally forgot userspace coding it seems..
Of course that doesn't compile... someone went overboard with const.
For some obscure reason, the stupid thing even thinks that:
note: expected ‘const char **’ but argument is of type ‘char **’
is a warning and then -Werror's on it. That's bloody insane.
next prev parent reply other threads:[~2020-03-18 10:06 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-17 17:02 [PATCH v2 00/19] objtool: vmlinux.o and noinstr validation Peter Zijlstra
2020-03-17 17:02 ` [PATCH v2 01/19] objtool: Introduce validate_return() Peter Zijlstra
2020-03-17 17:02 ` [PATCH v2 02/19] objtool: Rename func_for_each_insn() Peter Zijlstra
2020-03-17 17:02 ` [PATCH v2 03/19] objtool: Rename func_for_each_insn_all() Peter Zijlstra
2020-03-17 17:02 ` [PATCH v2 04/19] x86/kexec: Use RIP relative addressing Peter Zijlstra
2020-03-17 17:02 ` [PATCH v2 05/19] objtool: Optimize find_symbol_by_index() Peter Zijlstra
2020-03-17 17:02 ` [PATCH v2 06/19] objtool: Add a statistics mode Peter Zijlstra
2020-03-17 17:02 ` [PATCH v2 07/19] objtool: Optimize find_section_by_index() Peter Zijlstra
2020-03-17 17:02 ` [PATCH v2 08/19] objtool: Optimize find_section_by_name() Peter Zijlstra
2020-03-17 17:02 ` [PATCH v2 09/19] objtool: Optimize find_symbol_*() and read_symbols() Peter Zijlstra
2020-03-17 17:02 ` [PATCH v2 10/19] objtool: Rename find_containing_func() Peter Zijlstra
2020-03-17 17:02 ` [PATCH v2 11/19] objtool: Resize insn_hash Peter Zijlstra
2020-03-17 17:02 ` [PATCH v2 12/19] objtool: Optimize find_symbol_by_name() Peter Zijlstra
2020-03-17 17:02 ` [PATCH v2 13/19] objtool: Optimize read_sections() Peter Zijlstra
2020-03-17 17:02 ` [PATCH v2 14/19] objtool: Delete cleanup() Peter Zijlstra
2020-03-17 17:02 ` [PATCH v2 15/19] objtool: Optimize find_rela_by_dest_range() Peter Zijlstra
2020-03-17 17:02 ` [PATCH v2 16/19] objtool: Implement noinstr validation Peter Zijlstra
2020-03-17 21:00 ` Josh Poimboeuf
2020-03-18 9:03 ` Peter Zijlstra
2020-03-18 10:06 ` Peter Zijlstra [this message]
2020-03-18 13:21 ` Peter Zijlstra
2020-03-17 17:02 ` [PATCH v2 17/19] objtool: Optimize !vmlinux.o again Peter Zijlstra
2020-03-18 13:20 ` Peter Zijlstra
2020-03-20 16:20 ` Miroslav Benes
2020-03-21 15:14 ` Peter Zijlstra
2020-03-21 16:11 ` Peter Zijlstra
2020-03-23 7:27 ` Miroslav Benes
2020-03-17 17:02 ` [PATCH v2 18/19] objtool: Use sec_offset_hash() for insn_hash Peter Zijlstra
2020-03-17 17:02 ` [PATCH v2 19/19] objtool: Detect loading function pointers across noinstr Peter Zijlstra
2020-03-17 23:39 ` kbuild test robot
2020-03-17 23:43 ` Nick Desaulniers
2020-03-18 11:02 ` Peter Zijlstra
2020-03-18 7:18 ` kbuild test robot
2020-03-17 21:05 ` [PATCH v2 00/19] objtool: vmlinux.o and noinstr validation Josh Poimboeuf
2020-03-18 13:18 ` [RFC][PATCH v2 20/19] kbuild/objtool: Add objtool-vmlinux.o pass Peter Zijlstra
2020-03-18 14:13 ` Peter Zijlstra
2020-03-18 18:34 ` Josh Poimboeuf
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