106 lines
3.4 KiB
Diff
106 lines
3.4 KiB
Diff
From 4958020ecc85a30c52544deaf3c017cea82a0fb0 Mon Sep 17 00:00:00 2001
|
|
From: Max Filippov <jcmvbkbc@gmail.com>
|
|
Date: Thu, 2 Mar 2023 09:45:41 -0800
|
|
Subject: [PATCH] xtensa: add .note.GNU-stack section on linux
|
|
|
|
gcc/
|
|
* config/xtensa/linux.h (TARGET_ASM_FILE_END): New macro.
|
|
|
|
libgcc/
|
|
* config/xtensa/crti.S: Add .note.GNU-stack section on linux.
|
|
* config/xtensa/crtn.S: Likewise.
|
|
* config/xtensa/lib1funcs.S: Likewise.
|
|
* config/xtensa/lib2funcs.S: Likewise.
|
|
|
|
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
|
|
Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
|
|
Upstream: https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=6360bf9a2d08f08c151464c77c0da53cd702ff25
|
|
---
|
|
gcc/config/xtensa/linux.h | 1 +
|
|
libgcc/config/xtensa/crti.S | 6 ++++++
|
|
libgcc/config/xtensa/crtn.S | 6 ++++++
|
|
libgcc/config/xtensa/lib1funcs.S | 6 ++++++
|
|
libgcc/config/xtensa/lib2funcs.S | 6 ++++++
|
|
5 files changed, 25 insertions(+)
|
|
|
|
diff --git a/gcc/config/xtensa/linux.h b/gcc/config/xtensa/linux.h
|
|
index 468a48489e7..a69e38c58ee 100644
|
|
--- a/gcc/config/xtensa/linux.h
|
|
+++ b/gcc/config/xtensa/linux.h
|
|
@@ -69,3 +69,4 @@ along with GCC; see the file COPYING3. If not see
|
|
|
|
#undef DBX_REGISTER_NUMBER
|
|
|
|
+#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
|
|
diff --git a/libgcc/config/xtensa/crti.S b/libgcc/config/xtensa/crti.S
|
|
index 87a66e32e4a..40dd8c0dbc2 100644
|
|
--- a/libgcc/config/xtensa/crti.S
|
|
+++ b/libgcc/config/xtensa/crti.S
|
|
@@ -26,6 +26,12 @@
|
|
|
|
#include "xtensa-config.h"
|
|
|
|
+/* An executable stack is *not* required for these functions. */
|
|
+#if defined(__ELF__) && defined(__linux__)
|
|
+.section .note.GNU-stack,"",%progbits
|
|
+.previous
|
|
+#endif
|
|
+
|
|
.section .init
|
|
.globl _init
|
|
.type _init,@function
|
|
diff --git a/libgcc/config/xtensa/crtn.S b/libgcc/config/xtensa/crtn.S
|
|
index 8d2c2b1f22b..9d29f8fce1a 100644
|
|
--- a/libgcc/config/xtensa/crtn.S
|
|
+++ b/libgcc/config/xtensa/crtn.S
|
|
@@ -27,6 +27,12 @@
|
|
|
|
#include "xtensa-config.h"
|
|
|
|
+/* An executable stack is *not* required for these functions. */
|
|
+#if defined(__ELF__) && defined(__linux__)
|
|
+.section .note.GNU-stack,"",%progbits
|
|
+.previous
|
|
+#endif
|
|
+
|
|
.section .init
|
|
#if XCHAL_HAVE_WINDOWED && !__XTENSA_CALL0_ABI__
|
|
retw
|
|
diff --git a/libgcc/config/xtensa/lib1funcs.S b/libgcc/config/xtensa/lib1funcs.S
|
|
index a482a6eefc8..5245d7ad8ad 100644
|
|
--- a/libgcc/config/xtensa/lib1funcs.S
|
|
+++ b/libgcc/config/xtensa/lib1funcs.S
|
|
@@ -25,6 +25,12 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
|
|
#include "xtensa-config.h"
|
|
|
|
+/* An executable stack is *not* required for these functions. */
|
|
+#if defined(__ELF__) && defined(__linux__)
|
|
+.section .note.GNU-stack,"",%progbits
|
|
+.previous
|
|
+#endif
|
|
+
|
|
/* Define macros for the ABS and ADDX* instructions to handle cases
|
|
where they are not included in the Xtensa processor configuration. */
|
|
|
|
diff --git a/libgcc/config/xtensa/lib2funcs.S b/libgcc/config/xtensa/lib2funcs.S
|
|
index 36938c84924..a574a45fa68 100644
|
|
--- a/libgcc/config/xtensa/lib2funcs.S
|
|
+++ b/libgcc/config/xtensa/lib2funcs.S
|
|
@@ -25,6 +25,12 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
|
|
#include "xtensa-config.h"
|
|
|
|
+/* An executable stack is *not* required for these functions. */
|
|
+#if defined(__ELF__) && defined(__linux__)
|
|
+.section .note.GNU-stack,"",%progbits
|
|
+.previous
|
|
+#endif
|
|
+
|
|
/* __xtensa_libgcc_window_spill: This function flushes out all but the
|
|
current register window. This is used to set up the stack so that
|
|
arbitrary frames can be accessed. */
|
|
--
|
|
2.39.2
|
|
|