[PATCH v2] 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

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

diff --git a/gcc/configure b/gcc/configure
index a5160da..665a0fc 100755 (executable)
--- a/gcc/configure
+++ b/gcc/configure
@@ -31381,6 +31381,9 @@ 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 \

diff --git a/gcc/configure.ac b/gcc/configure.ac
index df4d2d8..51f9022 100644 (file)
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -6963,6 +6963,9 @@ 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], )
     ;;