diff options
Diffstat (limited to 'main/gcc/0050-x86-Fix-fsplit-stack-feature-detection-via-TARGET_CA.patch')
-rw-r--r-- | main/gcc/0050-x86-Fix-fsplit-stack-feature-detection-via-TARGET_CA.patch | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/main/gcc/0050-x86-Fix-fsplit-stack-feature-detection-via-TARGET_CA.patch b/main/gcc/0050-x86-Fix-fsplit-stack-feature-detection-via-TARGET_CA.patch deleted file mode 100644 index 8388196957c..00000000000 --- a/main/gcc/0050-x86-Fix-fsplit-stack-feature-detection-via-TARGET_CA.patch +++ /dev/null @@ -1,75 +0,0 @@ -From 400bae077d11c3a2ee9f4c8b96c31bbf39416a4f Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?S=C3=B6ren=20Tempel?= <soeren@soeren-tempel.net> -Date: Mon, 21 Feb 2022 04:13:47 +0100 -Subject: [PATCH] x86: Fix -fsplit-stack feature detection via - TARGET_CAN_SPLIT_STACK -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -Since commit c163647ffbc9a20c8feb6e079dbecccfe016c82e -fsplit-stack -is only supported on glibc targets. However, this original commit -required some fixups. As part of the fixup, the changes to the -gnu-user-common.h and gnu.h where partially reverted in commit -60953a23d57b13a672f751bec0c6eefc059eb1ab thus causing TARGET_CAN_SPLIT_STACK -to be defined for non-glibc targets even though -fsplit-stack is -actually not supported and attempting to use it causes a runtime error. - -This causes gcc internal code, such as ./gcc/go/gospec.c to not -correctly detect that -fsplit-stack is not supported and thus causes -gccgo to fail compilation on non-glibc targets. - -This commit ensures that TARGET_CAN_SPLIT_STACK is set based on the -changes performed in 2c31a8be4a5db11a0a0e97c366dded6362421086, i.e. -the new OPTION_GLIBC_P macro is now used to detect if -fsplit-stack is -supported in the x86 header files. - -The proposed changes have been tested on x86_64 Alpine Linux (which uses -musl libc) and fix compilation of gccgo for this target. - -Signed-off-by: Sören Tempel <soeren@soeren-tempel.net> - -gcc/ChangeLog: - - * config/i386/gnu-user-common.h (defined): Only define - TARGET_CAN_SPLIT_STACK for glibc targets. - * config/i386/gnu.h (defined): Ditto. ---- - gcc/config/i386/gnu-user-common.h | 5 +++-- - gcc/config/i386/gnu.h | 5 +++-- - 2 files changed, 6 insertions(+), 4 deletions(-) - -diff --git a/gcc/config/i386/gnu-user-common.h b/gcc/config/i386/gnu-user-common.h -index 00226f5a455..4e3fbb1de05 100644 ---- a/gcc/config/i386/gnu-user-common.h -+++ b/gcc/config/i386/gnu-user-common.h -@@ -66,7 +66,8 @@ along with GCC; see the file COPYING3. If not see - #define STACK_CHECK_STATIC_BUILTIN 1 - - /* We only build the -fsplit-stack support in libgcc if the -- assembler has full support for the CFI directives. */ --#if HAVE_GAS_CFI_PERSONALITY_DIRECTIVE -+ assembler has full support for the CFI directives. Also -+ we only support -fsplit-stack on glibc targets. */ -+#if HAVE_GAS_CFI_PERSONALITY_DIRECTIVE && defined(OPTION_GLIBC_P) - #define TARGET_CAN_SPLIT_STACK - #endif -diff --git a/gcc/config/i386/gnu.h b/gcc/config/i386/gnu.h -index 25fbc07f58c..41a6a37dfee 100644 ---- a/gcc/config/i386/gnu.h -+++ b/gcc/config/i386/gnu.h -@@ -41,8 +41,9 @@ along with GCC. If not, see <http://www.gnu.org/licenses/>. - #define TARGET_THREAD_SSP_OFFSET 0x14 - - /* We only build the -fsplit-stack support in libgcc if the -- assembler has full support for the CFI directives. */ --#if HAVE_GAS_CFI_PERSONALITY_DIRECTIVE -+ assembler has full support for the CFI directives. Also -+ we only support -fsplit-stack on glibc targets. */ -+#if HAVE_GAS_CFI_PERSONALITY_DIRECTIVE && defined(OPTION_GLIBC_P) - #define TARGET_CAN_SPLIT_STACK - #endif - /* We steal the last transactional memory word. */ --- -2.35.1 - |