From e34616747028ebeb0be867dc6a23682539bfab60 Mon Sep 17 00:00:00 2001 From: Iain Sandoe Date: Wed, 24 Jul 2019 19:59:22 +0000 Subject: [PATCH] [Darwin] Partial reversion of 273749. We still need to cater for pr80556, for the single-arch case. 2019-07-24 Iain Sandoe gcc/ PR bootstrap/87030 * config/i386/darwin.h (REAL_LIBGCC_SPEC): Revert r273749. From-SVN: r273768 --- gcc/ChangeLog | 5 +++++ gcc/config/i386/darwin.h | 29 ++++++++++++++++++++++++++++- 2 files changed, 33 insertions(+), 1 deletion(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 65495e2..7b3e03e 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2019-07-24 Iain Sandoe + + PR bootstrap/87030 + * config/i386/darwin.h (REAL_LIBGCC_SPEC): Revert change from r273749. + 2019-07-24 Giuliano Belinassi * cgraphunit.c (symbol_table::compile): Start and stop diff --git a/gcc/config/i386/darwin.h b/gcc/config/i386/darwin.h index d9c8f20..84afedc 100644 --- a/gcc/config/i386/darwin.h +++ b/gcc/config/i386/darwin.h @@ -39,6 +39,33 @@ along with GCC; see the file COPYING3. If not see #endif #endif +/* WORKAROUND pr80556: + For x86_64 Darwin10 and later, the unwinder is in libunwind (redirected + from libSystem). This doesn't use the keymgr (see keymgr.c) and therefore + the calls that libgcc makes to obtain the KEYMGR_GCC3_DW2_OBJ_LIST are not + updated to include new images, and might not even be valid for a single + image. + Therefore, for 64b exes at least, we must use the libunwind implementation, + even when static-libgcc is specified. We put libSystem first so that + unwinder symbols are satisfied from there. + We default to 64b for single-arch builds, so apply this unconditionally. */ +#undef REAL_LIBGCC_SPEC +#define REAL_LIBGCC_SPEC \ + "%{static-libgcc|static: \ + %:version-compare(>= 10.6 mmacosx-version-min= -lSystem) \ + -lgcc_eh -lgcc; \ + shared-libgcc|fexceptions|fgnu-runtime: \ + %:version-compare(!> 10.5 mmacosx-version-min= -lgcc_s.10.4) \ + %:version-compare(>< 10.5 10.6 mmacosx-version-min= -lgcc_s.10.5) \ + %:version-compare(!> 10.5 mmacosx-version-min= -lgcc_ext.10.4) \ + %:version-compare(>= 10.5 mmacosx-version-min= -lgcc_ext.10.5) \ + -lgcc ; \ + :%:version-compare(>< 10.3.9 10.5 mmacosx-version-min= -lgcc_s.10.4) \ + %:version-compare(>< 10.5 10.6 mmacosx-version-min= -lgcc_s.10.5) \ + %:version-compare(!> 10.5 mmacosx-version-min= -lgcc_ext.10.4) \ + %:version-compare(>= 10.5 mmacosx-version-min= -lgcc_ext.10.5) \ + -lgcc }" + /* Size of the Obj-C jump buffer. */ #define OBJC_JBLEN ((TARGET_64BIT) ? ((9 * 2) + 3 + 16) : (18)) @@ -120,9 +147,9 @@ along with GCC; see the file COPYING3. If not see %{mpc64:crtprec64.o%s} \ %{mpc80:crtprec80.o%s}" TM_DESTRUCTOR +/* We default to x86_64 for single-arch builds, bi-arch overrides. */ #define DARWIN_ARCH_SPEC "x86_64" -/* We default to x86_64 for single-arch builds, bi-arch overrides. */ #undef SUBTARGET_EXTRA_SPECS #define SUBTARGET_EXTRA_SPECS \ DARWIN_EXTRA_SPECS \ -- 2.7.4