commit dbf8a9dccf969cc836563ef1fc55a36bb816da8b
author iains <iains@138bc75d-0d04-0410-961f-82ee72b054a4> Thu May 23 20:51:04 2019 +0000
committer iains <iains@138bc75d-0d04-0410-961f-82ee72b054a4> Thu May 23 20:51:04 2019 +0000
tree 05c217e598b56dc1e43ab72c06d7745030e1f466
parent ae041064fec592e4e70bf47f7c95f2aa19938e51

darwin, x86 - disable '-mfentry' for the port.

This can't work without special support because placing
the call directly after the function label breaks the
ABI requirement that call sites are 16byte aligned.

gcc/

2019-05-23  Iain Sandoe  <iain@sandoe.co.uk>

       * config/i386/darwin.h: Reject -mfentry*.
       * doc/sourcebuild.texi: Document mfentry target support.

gcc/testsuite/

2019-05-23  Iain Sandoe  <iain@sandoe.co.uk>

       * lib/target-supports.exp (check_effective_target_mfentry): New.
       * gcc.target/i386/fentry-override.c: Require effective target mfentry.
       * gcc/testsuite/gcc.target/i386/fentry.c: Likewise
       * gcc.target/i386/fentryname1.c: Likewise
       * gcc.target/i386/fentryname2.c: Likewise
       * gcc.target/i386/fentryname3.c: Likewise
       * gcc.target/i386/nop-mcount.c: Likewise
       * gcc.target/i386/pr82699-2.c: Likewise
       * gcc.target/i386/pr82699-4.c: Likewise
       * gcc.target/i386/pr82699-5.c: Likewise
       * gcc.target/i386/pr82699-6.c: Likewise
       * gcc.target/i386/returninst1.c: Likewise
       * gcc.target/i386/returninst2.c: Likewise
       * gcc.target/i386/returninst3.c : Likewise



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@271580 138bc75d-0d04-0410-961f-82ee72b054a4