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| author | Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> | 2011-06-09 12:30:46 +0000 |
|---|---|---|
| committer | Rainer Orth <ro@gcc.gnu.org> | 2011-06-09 12:30:46 +0000 |
| commit | 10e48e3927a74bf7b2ec7a1b68fb840f4b1be588 (patch) | |
| tree | d044985af6a76f58c9fe909ce81f475be183312a /gcc/doc | |
| parent | 9ef0b98eb62b22e291e4cca4537d64ea2b795c14 (diff) | |
| download | gcc-10e48e3927a74bf7b2ec7a1b68fb840f4b1be588.zip gcc-10e48e3927a74bf7b2ec7a1b68fb840f4b1be588.tar.gz gcc-10e48e3927a74bf7b2ec7a1b68fb840f4b1be588.tar.bz2 | |
netbsd.h (ENABLE_EXECUTE_STACK): Remove.
2011-05-29 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>
Joseph Myers <joseph@codesourcery.com>
gcc:
* config/alpha/netbsd.h (ENABLE_EXECUTE_STACK): Remove.
(HAVE_ENABLE_EXECUTE_STACK): Define.
* config/alpha/osf5.h (ENABLE_EXECUTE_STACK): Remove.
(HAVE_ENABLE_EXECUTE_STACK): Define.
* config/darwin.h (ENABLE_EXECUTE_STACK): Remove.
(HAVE_ENABLE_EXECUTE_STACK): Define.
* config/i386/mingw32.h (MINGW_ENABLE_EXECUTE_STACK): Remove.
(ENABLE_EXECUTE_STACK): Remove.
(HAVE_ENABLE_EXECUTE_STACK): Define.
[IN_LIBGCC2]: Don't include <windows.h>.
* config/i386/netbsd-elf.h (ENABLE_EXECUTE_STACK): Remove.
(HAVE_ENABLE_EXECUTE_STACK): Define.
* config/i386/netbsd64.h (ENABLE_EXECUTE_STACK): Remove.
(HAVE_ENABLE_EXECUTE_STACK): Define.
* config/netbsd.h (NETBSD_ENABLE_EXECUTE_STACK): Remove.
* config/openbsd.h (ENABLE_EXECUTE_STACK): Remove.
(HAVE_ENABLE_EXECUTE_STACK): Define.
* config/sol2.h (ENABLE_EXECUTE_STACK): Remove.
(HAVE_ENABLE_EXECUTE_STACK): Define.
* config/sparc/freebsd.h (ENABLE_EXECUTE_STACK): Remove.
(HAVE_ENABLE_EXECUTE_STACK): Define.
* config/sparc/netbsd-elf.h (ENABLE_EXECUTE_STACK): Remove.
(HAVE_ENABLE_EXECUTE_STACK): Define.
* config/alpha/alpha.c (alpha_trampoline_init): Test
HAVE_ENABLE_EXECUTE_STACK.
* config/i386/i386.c (ix86_trampoline_init): Likewise.
* config/sparc/sparc.c (sparc32_initialize_trampoline): Likewise.
(sparc64_initialize_trampoline): Likewise.
* libgcc2.c [L_enable_execute_stack]: Remove.
* system.h (ENABLE_EXECUTE_STACK): Poison.
* doc/tm.texi.in (Trampolines, ENABLE_EXECUTE_STACK): Remove.
* doc/tm.texi: Regenerate.
* Makefile.in (LIBGCC2_CFLAGS): Add -fbuilding-libgcc.
gcc/c-family:
* c.opt (fbuilding-libgcc): New option.
* c-cppbuiltin.c (c_cpp_builtins): Define
__LIBGCC_TRAMPOLINE_SIZE__ if flag_building_libgcc.
libgcc:
* enable-execute-stack-empty.c: New file.
* enable-execute-stack-mprotect.c: New file.
* config/i386/enable-execute-stack-mingw32.c: New file.
* config.host (enable_execute_stack): New variable.
Select appropriate variants.
* configure.ac: Link enable-execute-stack.c to
$enable_execute_stack.
* configure: Regenerate.
* Makefile.in (LIB2ADD): Add enable-execute-stack.c.
(lib2funcs): Remove _enable_execute_stack.
Co-Authored-By: Joseph Myers <joseph@codesourcery.com>
From-SVN: r174843
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/tm.texi | 13 | ||||
| -rw-r--r-- | gcc/doc/tm.texi.in | 13 |
2 files changed, 0 insertions, 26 deletions
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi index e248b81..ebc876f 100644 --- a/gcc/doc/tm.texi +++ b/gcc/doc/tm.texi @@ -5189,19 +5189,6 @@ typically be a series of @code{asm} statements. Both @var{beg} and @var{end} are both pointer expressions. @end defmac -The operating system may also require the stack to be made executable -before calling the trampoline. To implement this requirement, define -the following macro. - -@defmac ENABLE_EXECUTE_STACK -Define this macro if certain operations must be performed before executing -code located on the stack. The macro should expand to a series of C -file-scope constructs (e.g.@: functions) and provide a unique entry point -named @code{__enable_execute_stack}. The target is responsible for -emitting calls to the entry point in the code, for example from the -@code{TARGET_TRAMPOLINE_INIT} hook. -@end defmac - To use a standard subroutine, define the following macro. In addition, you must make sure that the instructions in a trampoline fill an entire cache line with identical instructions, or else ensure that the diff --git a/gcc/doc/tm.texi.in b/gcc/doc/tm.texi.in index 528ac13..85fcfb1 100644 --- a/gcc/doc/tm.texi.in +++ b/gcc/doc/tm.texi.in @@ -5141,19 +5141,6 @@ typically be a series of @code{asm} statements. Both @var{beg} and @var{end} are both pointer expressions. @end defmac -The operating system may also require the stack to be made executable -before calling the trampoline. To implement this requirement, define -the following macro. - -@defmac ENABLE_EXECUTE_STACK -Define this macro if certain operations must be performed before executing -code located on the stack. The macro should expand to a series of C -file-scope constructs (e.g.@: functions) and provide a unique entry point -named @code{__enable_execute_stack}. The target is responsible for -emitting calls to the entry point in the code, for example from the -@code{TARGET_TRAMPOLINE_INIT} hook. -@end defmac - To use a standard subroutine, define the following macro. In addition, you must make sure that the instructions in a trampoline fill an entire cache line with identical instructions, or else ensure that the |