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From: Max Filippov <jcmvbkbc@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc r13-6644] xtensa: add .note.GNU-stack section on linux Date: Mon, 13 Mar 2023 20:44:19 +0000 (GMT) [thread overview] Message-ID: <20230313204419.9CFCD3858412@sourceware.org> (raw) https://gcc.gnu.org/g:6360bf9a2d08f08c151464c77c0da53cd702ff25 commit r13-6644-g6360bf9a2d08f08c151464c77c0da53cd702ff25 Author: Max Filippov <jcmvbkbc@gmail.com> Date: Thu Mar 2 09:45:41 2023 -0800 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. Diff: --- gcc/config/xtensa/linux.h | 2 ++ 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, 26 insertions(+) diff --git a/gcc/config/xtensa/linux.h b/gcc/config/xtensa/linux.h index dc4d547fc5f..e684e7deebf 100644 --- a/gcc/config/xtensa/linux.h +++ b/gcc/config/xtensa/linux.h @@ -69,3 +69,5 @@ along with GCC; see the file COPYING3. If not see #define XTENSA_ALWAYS_PIC 1 #undef DEBUGGER_REGNO + +#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 b88df50207b..637203500c4 100644 --- a/libgcc/config/xtensa/crti.S +++ b/libgcc/config/xtensa/crti.S @@ -26,6 +26,12 @@ #include "xtensa-config-builtin.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 7f271660f94..15c13ea03d0 100644 --- a/libgcc/config/xtensa/crtn.S +++ b/libgcc/config/xtensa/crtn.S @@ -27,6 +27,12 @@ #include "xtensa-config-builtin.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 a3f17b6b2cb..5baf2df1d20 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-builtin.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 e038e41eb6f..992f712238c 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-builtin.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. */
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