sd-id128: Drop _sd_const_ from sd_id128_in_setv()

Both the const and pure attributes disallow modifying input arguments
but sd_id128_in_setv() clearly modifies its ap input argument by iterating
over it with va_arg() so drop the _sd_const_ attribute from
sd_id128_in_setv().

hwdb.d/70-mouse.hwdb

@@ -825,12 +825,9 @@ mouse:usb:v0e8fp00a7:name:DaKai 2.4G RX:*
 # Nulea
 ##########################################
 
-# Note: it is possible that other devices may use the same wireless dongle,
-# as such this could require revisiting if it causes issues with other mice
-# Nulea M501 Wireless Trackball (USB Receiver)
-mouse:usb:v25a7pfa61:name:Compx 2.4G Receiver Mouse:*
- ID_INPUT_TRACKBALL=1
-
+# Note: The Nulea uses a generic USB dongle. Overriding its value would cause
+# other mice to be erroneously registered as trackballs, so only bluetooth
+# detection is added.
 # Nulea M501 Wireless Trackball (Bluetooth)
 mouse:bluetooth:v000ep3412:name:Nulea BT5.0 Mouse:*
  ID_INPUT_TRACKBALL=1

mkosi/mkosi.conf.d/arch/mkosi.conf

@@ -22,6 +22,7 @@ Packages=
         dbus-broker
         dbus-broker-units
         dhcp
+        elfutils
         erofs-utils
         f2fs-tools
         git
@@ -39,6 +40,7 @@ Packages=
         openssl
         pacman
         perf
+        pkgconf
         polkit
         procps-ng
         psmisc

mkosi/mkosi.conf.d/centos-fedora/mkosi.conf

@@ -28,6 +28,8 @@ Packages=
         device-mapper-event
         device-mapper-multipath
         dfuzzer
+        elfutils-devel
+        elfutils-libs
         erofs-utils
         git-core
         glibc-langpack-de
@@ -49,6 +51,7 @@ Packages=
         pam
         passwd
         perf
+        pkgconf
         policycoreutils
         polkit
         procps-ng

mkosi/mkosi.conf.d/debian-ubuntu/mkosi.conf

@@ -53,6 +53,8 @@ Packages=
         isc-dhcp-server
         knot
         libcap-ng-utils
+        libdw-dev
+        libdw1
         locales
         login
         man-db
@@ -63,6 +65,7 @@ Packages=
         openssh-server
         passwd
         polkitd
+        pkgconf
         procps
         psmisc
         python3-pexpect

mkosi/mkosi.conf.d/opensuse/mkosi.conf

@@ -58,6 +58,8 @@ Packages=
         knot
         libapparmor1
         libcap-progs
+        libdw-devel
+        libdw1
         libtss2-tcti-device0
         man
         multipath-tools
@@ -68,6 +70,7 @@ Packages=
         pam
         patterns-base-minimal_base
         perf
+        pkgconf
         procps4
         psmisc
         python3-pefile

mkosi/mkosi.extra.common/usr/lib/systemd/system/systemd-pcrphase-factory-reset.service.d/exit-on-failure.conf

@@ -0,0 +1,2 @@
+[Unit]
+FailureAction=exit

mkosi/mkosi.extra.common/usr/lib/systemd/system/systemd-storagetm.service.d/exit-on-failure.conf

@@ -0,0 +1,2 @@
+[Unit]
+FailureAction=exit

mkosi/mkosi.extra.common/usr/lib/systemd/system/systemd-validatefs@.service.d/exit-on-failure.conf

@@ -0,0 +1,2 @@
+[Unit]
+FailureAction=exit

mkosi/mkosi.extra/usr/lib/systemd/system/systemd-pcrfs-root.service.d/exit-on-failure.conf

@@ -0,0 +1,2 @@
+[Unit]
+FailureAction=exit

mkosi/mkosi.extra/usr/lib/systemd/system/systemd-pcrfs@.service.d/exit-on-failure.conf

@@ -0,0 +1,2 @@
+[Unit]
+FailureAction=exit

mkosi/mkosi.extra/usr/lib/systemd/system/systemd-pcrphase-sysinit.service.d/exit-on-failure.conf

@@ -0,0 +1,2 @@
+[Unit]
+FailureAction=exit

mkosi/mkosi.extra/usr/lib/systemd/system/systemd-pcrphase.service.d/exit-on-failure.conf

@@ -0,0 +1,2 @@
+[Unit]
+FailureAction=exit

mkosi/mkosi.images/initrd/mkosi.extra/usr/lib/systemd/system/systemd-pcrphase-initrd.service.d/exit-on-failure.conf

@@ -0,0 +1,2 @@
+[Unit]
+FailureAction=exit

mkosi/mkosi.images/initrd/mkosi.extra/usr/lib/systemd/system/systemd-pcrphase-storage-target-mode.service.d/exit-on-failure.conf

@@ -0,0 +1,2 @@
+[Unit]
+FailureAction=exit

src/boot/meson.build

@@ -207,7 +207,7 @@ efi_c_ld_args = [
 ]
 
 linker_sanity_code = 'void a(void) {}; void _start(void) { a(); }'
-linker_sanity_args = ['-nostdlib', '-Wl,--fatal-warnings']
+linker_sanity_args = ['-nostdlib', '-Wl,--fatal-warnings', '-fno-stack-protector']
 
 # Check if libgcc is available and then use it. It is needed for gcc builds
 # and for ia32 builds with clang.

src/kernel-install/test-kernel-install.sh

@@ -291,7 +291,7 @@ rmdir "$BOOT_ROOT/hoge"
 ###########################################
 output="$("$kernel_install" -v --json=pretty inspect 1.1.1 "$D/sources/linux")"
 
-diff -u <(echo "$output") - <<EOF
+diff -u <(echo "$output") - >&2 <<EOF
 {
 	"MachineID" : "3e0484f3634a418b8e6a39e8828b03e3",
 	"KernelImageType" : "unknown",
@@ -309,7 +309,7 @@ diff -u <(echo "$output") - <<EOF
 		"$D/00-skip.install"
 	],
 	"PluginEnvironment" : [
-		"LC_COLLATE=C.UTF-8",
+		"LC_COLLATE=$SYSTEMD_DEFAULT_LOCALE",
 		"KERNEL_INSTALL_VERBOSE=1",
 		"KERNEL_INSTALL_IMAGE_TYPE=unknown",
 		"KERNEL_INSTALL_MACHINE_ID=3e0484f3634a418b8e6a39e8828b03e3",

src/systemd/sd-id128.h

@@ -132,7 +132,7 @@ _sd_const_ static __inline__ int sd_id128_is_allf(sd_id128_t a) {
 #define SD_ID128_NULL ((const sd_id128_t) { .qwords = { 0, 0 }})
 #define SD_ID128_ALLF ((const sd_id128_t) { .qwords = { UINT64_C(0xFFFFFFFFFFFFFFFF), UINT64_C(0xFFFFFFFFFFFFFFFF) }})
 
-_sd_const_ static __inline__ int sd_id128_in_setv(sd_id128_t a, va_list ap) {
+static __inline__ int sd_id128_in_setv(sd_id128_t a, va_list ap) {
         for (;;) {
                 sd_id128_t b = va_arg(ap, sd_id128_t);
 

src/test/meson.build

@@ -14,6 +14,7 @@ path = run_command(sh, '-c', 'echo "$PATH"', check: true).stdout().strip()
 test_env = {
         'PATH' : meson.project_build_root() + ':' + path,
         'PROJECT_BUILD_ROOT' : meson.project_build_root(),
+        'SYSTEMD_DEFAULT_LOCALE' : get_option('default-locale'),
         'SYSTEMD_SLOW_TESTS' : want_slow_tests ? '1' : '0',
         'PYTHONDONTWRITEBYTECODE' : '1',
 }
@@ -275,6 +276,17 @@ executables += [
                 'sources' : files('test-compress.c'),
                 'link_with' : [libshared],
         },
+        test_template + {
+                'sources' : files('test-coredump-stacktrace.c'),
+                'type' : 'manual',
+                # This test intentionally crashes with SIGSEGV by dereferencing a NULL pointer
+                # to generate a coredump with a predictable stack trace. To prevent sanitizers
+                # from catching the error first let's disable them explicitly, and also always
+                # build with minimal optimizations to make the stack trace predictable no matter
+                # what we build the rest of systemd with
+                'override_options' : ['b_sanitize=none', 'strip=false', 'debug=true'],
+                'c_args' : ['-fno-sanitize=all', '-fno-optimize-sibling-calls', '-O1'],
+        },
         test_template + {
                 'sources' : files('test-cryptolib.c'),
                 'dependencies' : libopenssl,

src/test/test-coredump-stacktrace.c

@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+/* This is a test program that intentionally segfaults so we can generate a
+ * predictable-ish stack trace in tests. */
+
+#include <stdlib.h>
+
+__attribute__((noinline))
+static void baz(int *x) {
+        *x = rand();
+}
+
+__attribute__((noinline))
+static void bar(void) {
+        int * volatile x = NULL;
+
+        baz(x);
+}
+
+__attribute__((noinline))
+static void foo(void) {
+        bar();
+}
+
+int main(void) {
+        foo();
+
+        return 0;
+}

test/integration-tests/TEST-87-AUX-UTILS-VM/meson.build

@@ -5,7 +5,7 @@ integration_tests += [
         integration_test_template + {
                 'name' : fs.name(meson.current_source_dir()),
                 'storage': 'persistent',
-                'coredump-exclude-regex' : '/(test-usr-dump|test-dump|bash)$',
+                'coredump-exclude-regex' : '/(test-usr-dump|test-dump|test-stacktrace(-not)?-symbolized|bash)$',
                 'vm' : true,
                 'firmware' : 'auto',
         },

test/units/TEST-87-AUX-UTILS-VM.coredump.sh

@@ -8,15 +8,13 @@ set -o pipefail
 
 # Make sure the binary name fits into 15 characters
 CORE_TEST_BIN="/tmp/test-dump"
-CORE_STACKTRACE_TEST_BIN="/tmp/test-stacktrace-dump"
-MAKE_STACKTRACE_DUMP="/tmp/make-stacktrace-dump"
 CORE_TEST_UNPRIV_BIN="/tmp/test-usr-dump"
 MAKE_DUMP_SCRIPT="/tmp/make-dump"
 # Unset $PAGER so we don't have to use --no-pager everywhere
 export PAGER=
 
 at_exit() {
-    rm -fv -- "$CORE_TEST_BIN" "$CORE_TEST_UNPRIV_BIN" "$MAKE_DUMP_SCRIPT" "$MAKE_STACKTRACE_DUMP"
+    rm -fv -- "$CORE_TEST_BIN" "$CORE_TEST_UNPRIV_BIN" "$MAKE_DUMP_SCRIPT"
 }
 
 (! systemd-detect-virt -cq)
@@ -251,30 +249,70 @@ systemd-run -t --property CoredumpFilter=default ls /tmp
 (! coredumpctl debug --debugger=/bin/true --debugger-arguments='"')
 
 # Test for EnterNamespace= feature
-if pkgconf --atleast-version 0.192 libdw ; then
+#
 # dwfl_set_sysroot() is supported only in libdw-0.192 or newer.
-    cat >"$MAKE_STACKTRACE_DUMP" <<END
-#!/usr/bin/env bash
-mount -t tmpfs tmpfs /tmp
-gcc -xc -O0 -g -o $CORE_STACKTRACE_TEST_BIN - <<EOF
-void baz(void) { int *x = 0; *x = 42; }
-void bar(void) { baz(); }
-void foo(void) { bar(); }
-int main(void) { foo(); return 0;}
+#
+# FIXME: drop the objdump call once https://github.com/systemd/systemd/pull/39268#issuecomment-3390745718 is
+#        addressed
+if pkgconf --atleast-version 0.192 libdw &&
+    objdump -h -j .gnu_debugdata -j .debug_info /usr/lib/systemd/tests/unit-tests/manual/test-coredump-stacktrace; then
+    MAKE_STACKTRACE_DUMP="/tmp/make-stacktrace-dump"
+
+    # Simple script that mounts tmpfs on /tmp/ and copies the crashing test binary there, which in
+    # combination with `unshare --mount` ensures the "outside" systemd-coredump process won't be able to
+    # access the crashed binary (and hence won't be able to symbolize its stacktrace) unless
+    # EnterNamespace=yes is used
+    cat >"$MAKE_STACKTRACE_DUMP" <<\EOF
+#!/usr/bin/bash -eux
+
+TARGET="/tmp/${1:?}"
+EC=0
+
+# "Unhide" debuginfo in the namespace (see the comment below)
+test -d /usr/lib/debug/ && umount /usr/lib/debug/
+
+mount -t tmpfs tmpfs /tmp/
+cp /usr/lib/systemd/tests/unit-tests/manual/test-coredump-stacktrace "$TARGET"
+
+$TARGET || EC=$?
+if [[ $EC -ne 139 ]]; then
+    echo >&2 "$TARGET didn't crash, this shouldn't happen"
+    exit 1
+fi
+
+exit 0
 EOF
-$CORE_STACKTRACE_TEST_BIN
-END
     chmod +x "$MAKE_STACKTRACE_DUMP"
 
+    # Since the test-coredump-stacktrace binary is built together with rest of the systemd its debug symbols
+    # might be part of debuginfo packages (if supported & built), and libdw will then use them to symbolize
+    # the stacktrace even if it doesn't have access to the original crashing binary. Let's make the test
+    # simpler and just "hide" the debuginfo data, so libdw is forced to access the target namespace to get
+    # the necessary symbols
+    test -d /usr/lib/debug/ && mount -t tmpfs tmpfs /usr/lib/debug/
+
     mkdir -p /run/systemd/coredump.conf.d/
     printf '[Coredump]\nEnterNamespace=no' >/run/systemd/coredump.conf.d/99-enter-namespace.conf
 
-    unshare --pid --fork --mount-proc --mount --uts --ipc --net bash -c "$MAKE_STACKTRACE_DUMP" || :
-    timeout 30 bash -c "until coredumpctl -1 info $CORE_STACKTRACE_TEST_BIN | grep -zvqE 'baz.*bar.*foo'; do sleep .2; done"
+    unshare --pid --fork --mount-proc --mount --uts --ipc --net "$MAKE_STACKTRACE_DUMP" "test-stacktrace-not-symbolized"
+    timeout 30 bash -c "until coredumpctl list -q --no-legend /tmp/test-stacktrace-not-symbolized; do sleep .2; done"
+    coredumpctl info /tmp/test-stacktrace-not-symbolized | tee /tmp/not-symbolized.log
+    (! grep -E "#[0-9]+ .* main " /tmp/not-symbolized.log)
+    (! grep -E "#[0-9]+ .* foo " /tmp/not-symbolized.log)
+    (! grep -E "#[0-9]+ .* bar " /tmp/not-symbolized.log)
+    (! grep -E "#[0-9]+ .* baz " /tmp/not-symbolized.log)
 
     printf '[Coredump]\nEnterNamespace=yes' >/run/systemd/coredump.conf.d/99-enter-namespace.conf
-    unshare --pid --fork --mount-proc --mount --uts --ipc --net bash -c "$MAKE_STACKTRACE_DUMP" || :
-    timeout 30 bash -c "until coredumpctl -1 info $CORE_STACKTRACE_TEST_BIN | grep -zqE 'baz.*bar.*foo'; do sleep .2; done"
+    unshare --pid --fork --mount-proc --mount --uts --ipc --net "$MAKE_STACKTRACE_DUMP" "test-stacktrace-symbolized"
+    timeout 30 bash -c "until coredumpctl list -q --no-legend /tmp/test-stacktrace-symbolized; do sleep .2; done"
+    coredumpctl info /tmp/test-stacktrace-symbolized | tee /tmp/symbolized.log
+    grep -E "#[0-9]+ .* main " /tmp/symbolized.log
+    grep -E "#[0-9]+ .* foo " /tmp/symbolized.log
+    grep -E "#[0-9]+ .* bar " /tmp/symbolized.log
+    grep -E "#[0-9]+ .* baz " /tmp/symbolized.log
+
+    test -d /usr/lib/debug/ && umount /usr/lib/debug/
+    rm -f "$MAKE_STACKTRACE_DUMP" /run/systemd/coredump.conf.d/99-enter-namespace.conf /tmp/{not-,}symbolized.log
 else
     echo "libdw doesn't not support setting sysroot, skipping EnterNamespace= test"
 fi