On 08/15/2018 12:50 PM, Iain Sandoe wrote: > Hi, > > This is a pre-cursor to other tidy-ups aimed at being able to dispense with > the “ext” library that we introduced (a loooong time ago) to deal with the > differences between Darwin’s installed libgcc_s and the current compiler. > > Since the installed version of _Unwind_find_Enclosing_func was broken, we > built a small shim function to allow Java to work on Darwin10. > > We have been carrying this around in the darwin-specific unwinder code ever > since. > > This patch splits the patch function out into a shim crt that is included > only when needed (for x86 and ppc via Rosetta on Darwin10). > > There is no need to treat Darwin12+ differently in this and that allows us to > simplify the header there. > > OK for trunk? > Iain > > 2018-08-15 Iain Sandoe <i...@sandoe.co.uk> > > gcc/ > * config/darwin10.h (LINK_GCC_C_SEQUENCE_SPEC): Adjust to use the > Darwin10-specific unwinder-shim. > * config/darwin12.h (LINK_GCC_C_SEQUENCE_SPEC): Remove. > * config/rs6000/darwin.h (DARWIN_CRT1_SPEC, DARWIN_DYLIB1_SPEC): > New to cater for Darwin10 Rosetta. > > libgcc/ > * config/unwind-dw2-fde-darwin.c > (_darwin10_Unwind_FindEnclosingFunction): > move from here ... > * config/darwin10-unwind-find-enc-func.c: … to here. > * config/t-darwin: Build Darwin10 unwinder shim crt. > * libgcc/config.host: Add the Darwin10 unwinder shim. Given you've probably got a better understanding of Darwin's needs than anyone here, this seems quite reasonable. OK for the trunk unless someone objects in the next 24hrs.
jeff
