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Share mingw fset-stack-executable with cygwin

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This patch is in use by Cygwin for years, upstream to GCC.

	* gcc/config/i386/mingw.opt (fset-stack-executable): Removed.
	* gcc/config/i386/cygming.opt (fset-stack-executable): Moved
	from mingw.opt.
	* gcc/config/i386/cygwin.h: Define CHECK_EXECUTE_STACK_ENABLED.
	* ligcc/config.host (*-cygwin): Include file from mingw
	config/i386/enable-execute-stack-mingw32.c

From-SVN: r250914
This commit is contained in:
Jonathan Yong 2017-08-07 11:40:08 +00:00 committed by Jonathan Yong
parent d5e2c91a26
commit c8f34527b1
6 changed files with 23 additions and 4 deletions
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7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
2017-08-07 Jonathan Yong <10walls@gmail.com>
* config/i386/mingw.opt (fset-stack-executable): Removed.
* config/i386/cygming.opt (fset-stack-executable): Moved
from mingw.opt.
* config/i386/cygwin.h: Define CHECK_EXECUTE_STACK_ENABLED.
2017-08-07 Segher Boessenkool <segher@kernel.crashing.org>
* print-rtl.c (print_exp): Print NOT as "~" instead of as "!".

4
gcc/config/i386/cygming.opt
View File

@ -50,6 +50,10 @@ muse-libstdc-wrappers
Target Condition({defined (USE_CYGWIN_LIBSTDCXX_WRAPPERS)})
Compile code that relies on Cygwin DLL wrappers to support C++ operator new/delete replacement.
fset-stack-executable
Common Report Var(flag_setstackexecutable) Init(1) Optimization
For nested functions on stack executable permission is set.
posix
Driver

4
gcc/config/i386/cygwin.h
View File

@ -153,3 +153,7 @@ along with GCC; see the file COPYING3. If not see
#endif
#define LIBGCC_SONAME "cyggcc_s" LIBGCC_EH_EXTN "-1.dll"
/* Make stack executable to avoid DEP problems with trampolines. */
#define HAVE_ENABLE_EXECUTE_STACK
#undef CHECK_EXECUTE_STACK_ENABLED
#define CHECK_EXECUTE_STACK_ENABLED flag_setstackexecutable

4
gcc/config/i386/mingw.opt
View File

@ -28,8 +28,4 @@ Wpedantic-ms-format
C ObjC C++ ObjC++ Var(warn_pedantic_ms_format) Init(1) Warning
Warn about none ISO msvcrt scanf/printf width extensions.
fset-stack-executable
Common Report Var(flag_setstackexecutable) Init(1) Optimization
For nested functions on stack executable permission is set.
; Need to retain blank line above.

5
libgcc/ChangeLog
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@ -1,3 +1,8 @@
2017-08-07 Jonathan Yong <10walls@gmail.com>
* config.host (*-cygwin): Include file from mingw
config/i386/enable-execute-stack-mingw32.c
2017-08-01 Jerome Lambourg <lambourg@adacore.com>
Doug Rupp <rupp@adacore.com>
Olivier Hainque <hainque@adacore.com>

3
libgcc/config.host
View File

@ -324,6 +324,9 @@ case ${host} in
i[34567]86-*-mingw* | x86_64-*-mingw*)
enable_execute_stack=config/i386/enable-execute-stack-mingw32.c
;;
i[34567]86-*-cygwin* | x86_64-*-cygwin*)
enable_execute_stack=config/i386/enable-execute-stack-mingw32.c
;;
*)
enable_execute_stack=enable-execute-stack-empty.c;
;;