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| author | Renaud Métrich <rmetrich@redhat.com> | 2021-09-14 14:50:14 +0200 |
|---|---|---|
| committer | Harald Hoyer <harald@hoyer.xyz> | 2021-10-12 18:52:06 +0200 |
| commit | d502d2a816ba8f8329b3d8616bd2a7e82a0ad21f (patch) | |
| tree | 709d15637b1693cc19236bf8eeaa85a0e0d17ee6 | |
| parent | 96f3177c3312fdc893cee2f4ccdd1bdfbb5dfc0e (diff) | |
| download | dracut-d502d2a816ba8f8329b3d8616bd2a7e82a0ad21f.tar.gz | |
feat(systemd): enable support for systemd compiled with ASAN
When systemd is compiled with ASAN library to troubleshoot memory issues
within systemd code, the libasan library expects to have /proc be
available as soon as systemd starts, which isn't the case currently,
causing an assertion to fail, systemd to crash and kernel to panic:
==1==AddressSanitizer CHECK failed: ../../../../libsanitizer/sanitizer_common/sanitizer_procmaps_common.cc:75 "((data_.proc_self_maps.len)) > ((0))" (0x0, 0x0)
<empty stack>
X.XXXXXXX Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000100
[...]
| -rwxr-xr-x | modules.d/00systemd/module-setup.sh | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/modules.d/00systemd/module-setup.sh b/modules.d/00systemd/module-setup.sh index 0a61d430..433e4758 100755 --- a/modules.d/00systemd/module-setup.sh +++ b/modules.d/00systemd/module-setup.sh @@ -213,8 +213,23 @@ install() { grep '^systemd-network:' "$dracutsysrootdir"/etc/group 2> /dev/null } >> "$initdir/etc/group" - ln_r "$systemdutildir"/systemd "/init" - ln_r "$systemdutildir"/systemd "/sbin/init" + local _systemdbinary="$systemdutildir"/systemd + + if ldd "$_systemdbinary" | grep -qw libasan; then + local _wrapper="$systemdutildir"/systemd-asan-wrapper + cat > "$initdir"/"$_wrapper" << EOF +#!/bin/sh +mount -t proc -o nosuid,nodev,noexec proc /proc +exec $_systemdbinary +EOF + chmod 755 "$initdir"/"$_wrapper" + _systemdbinary="$_wrapper" + unset _wrapper + fi + ln_r "$_systemdbinary" "/init" + ln_r "$_systemdbinary" "/sbin/init" + + unset _systemdbinary inst_binary true ln_r "$(find_binary true)" "/usr/bin/loginctl" |