Adjust libsanitizer to ABI change in glibc 2.31.

Adapted to 3.x from this upstream commit:
https://github.com/llvm/llvm-project/commit/947f9692440836dcb8d88b74b69dd379d85974ce

diff --git a/lib/sanitizer_common/sanitizer_platform_limits_posix.cc b/lib/sanitizer_common/sanitizer_platform_limits_posix.cc
--- a/lib/sanitizer_common/sanitizer_platform_limits_posix.cc
+++ b/lib/sanitizer_common/sanitizer_platform_limits_posix.cc
@@ -1130,8 +1130,9 @@ CHECK_SIZE_AND_OFFSET(ipc_perm, cgid);
 #ifndef __GLIBC_PREREQ
 #define __GLIBC_PREREQ(x, y) 0
 #endif
-#if !defined(__aarch64__) || !SANITIZER_LINUX || __GLIBC_PREREQ (2, 21)
-/* On aarch64 glibc 2.20 and earlier provided incorrect mode field.  */
+#if !SANITIZER_LINUX || __GLIBC_PREREQ (2, 31)
+/* glibc 2.30 and earlier provided 16-bit mode field instead of 32-bit
+   on many architectures.  */
 CHECK_SIZE_AND_OFFSET(ipc_perm, mode);
 #endif
 
diff --git a/lib/sanitizer_common/sanitizer_platform_limits_posix.h b/lib/sanitizer_common/sanitizer_platform_limits_posix.h
--- a/lib/sanitizer_common/sanitizer_platform_limits_posix.h
+++ b/lib/sanitizer_common/sanitizer_platform_limits_posix.h
@@ -188,17 +188,16 @@ namespace __sanitizer {
     unsigned __seq;
     u64 __unused1;
     u64 __unused2;
-#elif defined(__mips__) || defined(__aarch64__)
-    unsigned int mode;
-    unsigned short __seq;
-    unsigned short __pad1;
-    unsigned long __unused1;
-    unsigned long __unused2;
+#elif defined(__sparc__)
+  unsigned mode;
+  unsigned short __pad2;
+  unsigned short __seq;
+  unsigned long long __unused1;
+  unsigned long long __unused2;
 #else
-    unsigned short mode;
-    unsigned short __pad1;
-    unsigned short __seq;
-    unsigned short __pad2;
+  unsigned int mode;
+  unsigned short __seq;
+  unsigned short __pad2;
 #if defined(__x86_64__) && !defined(_LP64)
     u64 __unused1;
     u64 __unused2;
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<div class='path'>path: <a href='/guix/log/?id=89513b8ed3d9d3287decc4e5e4fbe74d3d0605a2'>root</a>/<a href='/guix/log/gnu?id=89513b8ed3d9d3287decc4e5e4fbe74d3d0605a2'>gnu</a>/<a href='/guix/log/gnu/system?id=89513b8ed3d9d3287decc4e5e4fbe74d3d0605a2'>system</a>/<a href='/guix/log/gnu/system/examples?id=89513b8ed3d9d3287decc4e5e4fbe74d3d0605a2'>examples</a>/<a href='/guix/log/gnu/system/examples/raspberry-pi-64.tmpl?id=89513b8ed3d9d3287decc4e5e4fbe74d3d0605a2'>raspberry-pi-64.tmpl</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/system/examples/raspberry-pi-64.tmpl?id=89513b8ed3d9d3287decc4e5e4fbe74d3d0605a2&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2022-12-16 23:42:17 -0500'>2022-12-16</span></td><td><a href='/guix/commit/gnu/system/examples/raspberry-pi-64.tmpl?id=491bddfa276cc9775adf325c07e5f82638f330e7'>system: examples: Add mode prop line.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/system/examples/asus-c201.tmpl: Add a mode prop line.
* gnu/system/examples/bare-bones.tmpl: Likewise.
* gnu/system/examples/beaglebone-black.tmpl: Likewise.
* gnu/system/examples/desktop.tmpl: Likewise.
* gnu/system/examples/docker-image.tmpl: Likewise.
* gnu/system/examples/lightweight-desktop.tmpl: Likewise.
* gnu/system/examples/raspberry-pi-64-nfs-root.tmpl: Likewise.
* gnu/system/examples/raspberry-pi-64.tmpl: Likewise.
* gnu/system/examples/vm-image.tmpl: Likewise.
</span></span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-12-04 00:37:11 -0500'>2022-12-04</span></td><td><a href='/guix/commit/gnu/system/examples/raspberry-pi-64.tmpl?id=08dc9f2ca2e96476aa51c906c8ba01ca5d033568'>gnu: Do not use 'local-file' in Raspberry Pi OS examples.</a><span class='msg-avail'>...<span class='msg-tooltip'>As this breaks the 'tests/guix-system.sh' test.

* gnu/system/examples/raspberry-pi-64-nfs-root.tmpl (%my-public-key): Delete
variable.
(raspberry-pi-64-nfs-root) [services]: Remove key from openssh-configuration.
* gnu/system/examples/raspberry-pi-64.tmpl: Likewise.

Reported-by: Vagrant Cascadian &lt;vagrant@debian.org&gt;
</span></span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2022-12-01 14:31:29 -0500'>2022-12-01</span></td><td><a href='/guix/commit/gnu/system/examples/raspberry-pi-64.tmpl?id=c7793b82efd3383a9f7adf0dfa82d71ee032e41b'>gnu: raspberry-pi: Add a bootloader-chain for the Raspberry Pi and os examples.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/raspberry-pi.scm (grub-efi-bootloader-chain-raspi-64): New
bootloader variable, capable to boot a Raspberry Pi over network or from a
local storage.
* gnu/system/examples/raspberry-pi-64.tmpl: New operating-system example.
* gnu/system/examples/raspberry-pi-64-nfs-root.tmpl: New operating-system
example for booting over network.
* Makefile.am (EXAMPLES): Register the new files.

Signed-off-by: Maxim Cournoyer &lt;maxim.cournoyer@gmail.com&gt;
</span></span></td><td>Stefan</td></tr>