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Darwin does not support gsplit-dwarf. 

2018-08-18  Iain Sandoe  <iain@sandoe.co.uk>

gcc/

	* config/darwin.c (darwin_override_options): If -gsplit-dwarf is set,
	emit a diagnostic that it is not supported and reset the option.
	* config/darwin.h (DRIVER_SELF_SPECS): Note that gsplit-dwarf is not
	supported and consume the option.  (ASM_FINAL_SPEC): New.

gcc/testsuite

	* g++.dg/debug/dwarf2/pr85302.C: Skip unsupported split DWARF
	test on Darwin.
	* g++.dg/debug/dwarf2/pr85302.C: Likewise.
	* gcc.dg/lto/pr83719_0.c: Likewise.

From-SVN: r263645
This commit is contained in:
Iain Sandoe 2018-08-18 09:15:05 +00:00 committed by Iain Sandoe
parent 2ed3a817c8
commit c7a52e72da
7 changed files with 30 additions and 1 deletions
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7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
2018-08-18 Iain Sandoe <iain@sandoe.co.uk>
* config/darwin.c (darwin_override_options): If -gsplit-dwarf is set,
emit a diagnostic that it is not supported and reset the option.
* config/darwin.h (DRIVER_SELF_SPECS): Note that gsplit-dwarf is not
supported and consume the option. (ASM_FINAL_SPEC): New.
2018-08-17 Segher Boessenkool <segher@kernel.crashing.org>
* doc/md.texi (Patterns): Use @ref instead of @xref in the middle of

8
gcc/config/darwin.c
View File

@ -3176,6 +3176,14 @@ darwin_override_options (void)
if (!global_options_set.x_dwarf_version)
dwarf_version = 2;
if (global_options_set.x_dwarf_split_debug_info)
{
inform (input_location,
"-gsplit-dwarf is not supported on this platform, ignored");
dwarf_split_debug_info = 0;
global_options_set.x_dwarf_split_debug_info = 0;
}
/* Do not allow unwind tables to be generated by default for m32.
fnon-call-exceptions will override this, regardless of what we do. */
if (generating_for_darwin_version < 10

6
gcc/config/darwin.h
View File

@ -122,7 +122,9 @@ extern GTY(()) int darwin_ms_struct;
"%{gfull:-g -fno-eliminate-unused-debug-symbols} %<gfull", \
"%{gused:-g -feliminate-unused-debug-symbols} %<gused", \
"%{fapple-kext|mkernel:-static}", \
"%{shared:-Zdynamiclib} %<shared"
"%{shared:-Zdynamiclib} %<shared", \
"%{gsplit-dwarf:%ngsplit-dwarf is not supported on this platform } \
%<gsplit-dwarf"
#define DARWIN_CC1_SPEC \
"%{findirect-virtual-calls: -fapple-kext} %<findirect-virtual-calls " \
@ -421,6 +423,8 @@ extern GTY(()) int darwin_ms_struct;
debugging data. */
#define ASM_DEBUG_SPEC "%{g*:%{%:debug-level-gt(0):%{!gdwarf*:--gstabs}}}"
#define ASM_FINAL_SPEC \
"%{gsplit-dwarf:%ngsplit-dwarf is not supported on this platform } %<gsplit-dwarf"
/* We still allow output of STABS if the assembler supports it. */
#ifdef HAVE_AS_STABS_DIRECTIVE

7
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,10 @@
2018-08-18 Iain Sandoe <iain@sandoe.co.uk>
* g++.dg/debug/dwarf2/pr85302.C: Skip unsupported split DWARF
test on Darwin.
* g++.dg/debug/dwarf2/pr85302.C: Likewise.
* gcc.dg/lto/pr83719_0.c: Likewise.
2018-08-17 Martin Sebor <msebor@redhat.com>
PR testsuite/86996

1
gcc/testsuite/g++.dg/debug/dwarf2/pr85302.C
View File

@ -1,5 +1,6 @@
// PR debug/85302
// { dg-do compile }
// { dg-skip-if "split DWARF unsupported" { *-*-darwin* } }
// { dg-options "-std=c++11 -gsplit-dwarf -O1" }
// { dg-additional-options "-fPIE" { target pie } }

1
gcc/testsuite/gcc.dg/lto/pr83719_0.c
View File

@ -1,4 +1,5 @@
/* { dg-lto-do assemble } */
/* { dg-skip-if "split DWARF unsupported" { *-*-darwin* } } */
/* { dg-lto-options { { -flto -g -gsplit-dwarf } } } */
/* Empty. */

1
gcc/testsuite/gcc.dg/pr86064.c
View File

@ -1,4 +1,5 @@
/* { dg-do compile } */
/* { dg-skip-if "split DWARF unsupported" { *-*-darwin* } } */
/* { dg-options "-g -O2 -fno-var-tracking-assignments -gsplit-dwarf" } */
/* This used to fail with location views (implicitly) enabled, because