Messages in this thread | | | Date | Wed, 12 Feb 2014 22:32:25 +0100 | Subject | Re: [PATCH] x86, acpi: LLVMLinux: Remove nested functions from Thinkpad ACPI | From | Richard Weinberger <> |
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On Wed, Feb 12, 2014 at 10:20 PM, Behan Webster <behanw@converseincode.com> wrote: > On 02/12/14 13:11, Christoph Hellwig wrote: >> >> On Wed, Feb 12, 2014 at 09:58:46PM +0100, dl9pf@gmx.de wrote: >>> >>> being able to compile the Linux kernel with Clang. The use of nested >>> functions >>> blocks this effort. >> >> Is there any good way to make gcc warn about the use of nested functions? > > Interesting idea. > > '-Wtrampolines' > Warn about trampolines generated for pointers to nested functions. > > A trampoline is a small piece of data or code that is created at > run time on the stack when the address of a nested function is > taken, and is used to call the nested function indirectly. For > some targets, it is made up of data only and thus requires no > special treatment. But, for most targets, it is made up of code > and thus requires the stack to be made executable in order for the > program to work properly. > > > That might work.
I gave it a quick try, but gcc (4.7) did not bark.
-- Thanks, //richard
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