Bug#1113975: gcc-11: FTBFS on hppa - glibc 2.41 breaks module support
Source: gcc-11
Version: 11.5.0-3
Severity: normal
Tags: patch
Dear Maintainer,
gcc-11 11.5.0-3 fails to build with installed gcc-11. See:
https://buildd.debian.org/status/fetch.php?pkg=gcc-11&arch=hppa&ver=11.5.0-3&stamp=1756753356&raw=0
The problem is gcc-11 was not upgraded to generate GNU_STACK notes
before the release branch was closed. As a result, modules require
an executable stack in gcc-11 and earlier.
glibc 2.41 no longer allows modules or shared libraries requiring
an executable stack to be loaded with dlopen. This broke gcc-11
11.5.0-2.
We need to patch gcc-11 to enable the generation of GNU_STACK notes.
I manually built and uploaded 11.5.0-3 using glibc 2.40 and the
attached patch to generate GNU_STACK notes.
The attached patch will need be added to debian/patches if gcc-11
ever needs rebuilding on hppa.
Regards,
Dave Anglin
-- System Information:
Debian Release: forky/sid
APT prefers unreleased
APT policy: (500, 'unreleased'), (500, 'unstable')
Architecture: hppa (parisc64)
Kernel: Linux 6.12.43-dirty (SMP w/4 CPU threads)
Kernel taint flags: TAINT_WARN
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8), LANGUAGE=en_CA:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
-- no debconf information
Index: gcc-11-11.5.0/src/gcc/config/pa/pa-linux.h
===================================================================
--- gcc-11-11.5.0.orig/src/gcc/config/pa/pa-linux.h
+++ gcc-11-11.5.0/src/gcc/config/pa/pa-linux.h
@@ -148,8 +148,7 @@ along with GCC; see the file COPYING3.
#define HAVE_sync_compare_and_swapsi 1
#define HAVE_sync_compare_and_swapdi 1
-/* It's not possible to enable GNU_stack notes since the kernel needs
- an executable stack for signal returns and syscall restarts. */
+/* Enable execute stack. */
#undef NEED_INDICATE_EXEC_STACK
-#define NEED_INDICATE_EXEC_STACK 0
+#define NEED_INDICATE_EXEC_STACK 1
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