On Fri, Apr 27, 2018 at 09:31:37AM +0200, Jakub Jelinek wrote: > On Fri, Apr 27, 2018 at 02:27:40AM -0500, Segher Boessenkool wrote: > > Hi Alan, > > > > On Fri, Apr 27, 2018 at 10:49:14AM +0930, Alan Modra wrote: > > > This patch is aimed at removing bogus .eh_frame info emitted after the > > > zero terminator in crtend.o, which will cause a ld warning and slow > > > exception handling. The right fix for the PR is probably to change > > > libgcc/Makefile.in to always supply -fno-asynchronous-unwind-tables > > > when building crtbegin.o and crtend.o, since the utility of such > > > unwind info is limited to say the least; To what handler would you be > > > unwinding to? > > > > > > This patch instead carries on in the tradition of pr31868 and pr80037, > > > and just fixes the problem for powerpc.. alpha, i386, s390, tilepro, > > > tilegx already disable unwind info for these files. Bootstrapped and > > > regression tested powerpc64le-linux. OK for master and gcc-8? > > > > > > PR libgcc/85532 > > > * config/rs6000/t-crtstuff (CRTSTUFF_T_CFLAGS): Add > > > -fno-asynchronous-unwind-tables. > > > > This is okay from the rs6000 perspective. Please apply to trunk. For > > the 8 branch it is desirable too; RMs, is it okay for there? > > Ok for 8.1. > > Doesn't aarch64 need a similar change?
No. aarch64 always uses .init_array/.fini_array, accomplished by CTOR_LIST_BEGIN and other macros in gcc/config/aarch64/aarch64-elf.h. -- Alan Modra Australia Development Lab, IBM
