Behan Webster <behanw@xxxxxxxxxxxxxxxxxx> writes: > On 02/12/14 13:11, Christoph Hellwig wrote: >> On Wed, Feb 12, 2014 at 09:58:46PM +0100, dl9pf@xxxxxx 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. That sounds like it will only warn if a trampoline is needed. A nested function whose address isn't taken, as is the case here, wouldn't trigger this warning. -- Måns Rullgård mans@xxxxxxxxx ------------------------------------------------------------------------------ Subversion Kills Productivity. Get off Subversion & Make the Move to Perforce. With Perforce, you get hassle-free workflows. Merge that actually works. Faster operations. Version large binaries. Built-in WAN optimization and the freedom to use Git, Perforce or both. Make the move to Perforce. http://pubads.g.doubleclick.net/gampad/clk?id=122218951&iu=/4140/ostg.clktrk _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel
