From 4958020ecc85a30c52544deaf3c017cea82a0fb0 Mon Sep 17 00:00:00 2001 From: Max Filippov 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 Signed-off-by: Waldemar Brodkorb 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