openwrt/toolchain/gcc/patches-11.x/011-v12-configure-define-TARGET_LIBC_GNUSTACK-on-musl.patch

From ea650cae26da4a8fc04f0c4666f4dd776d0b5fc0 Mon Sep 17 00:00:00 2001
From: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
Date: Sun, 14 Nov 2021 21:54:25 -0800
Subject: [PATCH] configure: define TARGET_LIBC_GNUSTACK on musl

musl only uses PT_GNU_STACK to set default thread stack size and has no
executable stack support[0], so there is no reason not to emit the
.note.GNU-stack section on musl builds.

[0]: https://lore.kernel.org/all/20190423192534.GN23599@brightrain.aerifal.cx/T/#u

gcc/ChangeLog:

	* configure: Regenerate.
	* configure.ac: define TARGET_LIBC_GNUSTACK on musl

Signed-off-by: Ilya Lipnitskiy <ilya.lipnitskiy@gmail.com>
---
 gcc/configure    | 3 +++
 gcc/configure.ac | 3 +++
 2 files changed, 6 insertions(+)

--- a/gcc/configure
+++ b/gcc/configure
@@ -31533,6 +31533,9 @@ fi
 # Check if the target LIBC handles PT_GNU_STACK.
 gcc_cv_libc_gnustack=unknown
 case "$target" in
+  mips*-*-linux-musl*)
+    gcc_cv_libc_gnustack=yes
+    ;;
   mips*-*-linux*)
 
 if test $glibc_version_major -gt 2 \
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -7023,6 +7023,9 @@ fi
 # Check if the target LIBC handles PT_GNU_STACK.
 gcc_cv_libc_gnustack=unknown
 case "$target" in
+  mips*-*-linux-musl*)
+    gcc_cv_libc_gnustack=yes
+    ;;
   mips*-*-linux*)
     GCC_GLIBC_VERSION_GTE_IFELSE([2], [31], [gcc_cv_libc_gnustack=yes], )
     ;;