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From f0f59e43e9d1c5a6f9f7e03f07850ee40bac0ab3 Mon Sep 17 00:00:00 2001
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From: Frantisek Sumsal <frantisek@sumsal.cz>
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Date: Wed, 15 Feb 2023 18:08:35 +0100
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Subject: [PATCH] journalctl: actually run the static destructors
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In journalctl we don't run the static destructors defined via
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the STATIC_DESTRUCTOR_REGISTER() macro, since it requires a corresponding
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static_destruct() call. In most cases this is handled by
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the DEFINE_(TEST_)?MAIN*() macros, but journalctl defines its own main
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function, so let's handle that as well.
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$ valgrind --suppressions=valgrind.supp --show-leak-kinds=all --leak-check=full build/journalctl --no-pager -u system.slice -n 10 >/dev/null
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==2778093== Memcheck, a memory error detector
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==2778093== Copyright (C) 2002-2022, and GNU GPL'd, by Julian Seward et al.
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==2778093== Using Valgrind-3.19.0 and LibVEX; rerun with -h for copyright info
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==2778093== Command: build/journalctl --no-pager -u system.slice -n 10
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==2778093==
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==2778093==
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==2778093== HEAP SUMMARY:
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==2778093==     in use at exit: 8,221 bytes in 4 blocks
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==2778093==   total heap usage: 458 allocs, 454 frees, 255,182 bytes allocated
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==2778093==
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==2778093== 13 bytes in 1 blocks are still reachable in loss record 1 of 4
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==2778093==    at 0x484586F: malloc (vg_replace_malloc.c:381)
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==2778093==    by 0x4DA256D: strdup (strdup.c:42)
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==2778093==    by 0x4ADB747: strv_extend_with_size (strv.c:544)
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==2778093==    by 0x405386: strv_extend (strv.h:45)
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==2778093==    by 0x40816F: parse_argv (journalctl.c:933)
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==2778093==    by 0x40EAB5: main (journalctl.c:2111)
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==2778093==
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==2778093== 16 bytes in 1 blocks are still reachable in loss record 2 of 4
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==2778093==    at 0x484578A: malloc (vg_replace_malloc.c:380)
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==2778093==    by 0x484A70B: realloc (vg_replace_malloc.c:1437)
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==2778093==    by 0x4ADB2A3: strv_push_with_size (strv.c:423)
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==2778093==    by 0x4ADB620: strv_consume_with_size (strv.c:496)
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==2778093==    by 0x4ADB770: strv_extend_with_size (strv.c:548)
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==2778093==    by 0x405386: strv_extend (strv.h:45)
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==2778093==    by 0x40816F: parse_argv (journalctl.c:933)
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==2778093==    by 0x40EAB5: main (journalctl.c:2111)
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==2778093==
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==2778093== LEAK SUMMARY:
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==2778093==    definitely lost: 0 bytes in 0 blocks
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==2778093==    indirectly lost: 0 bytes in 0 blocks
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==2778093==      possibly lost: 0 bytes in 0 blocks
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==2778093==    still reachable: 29 bytes in 2 blocks
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==2778093==         suppressed: 8,192 bytes in 2 blocks
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==2778093==
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==2778093== For lists of detected and suppressed errors, rerun with: -s
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==2778093== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0)
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(cherry picked from commit 9259d71d505ba1771ba5e3caa522da50bdc58bed)
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Related: #2122500
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---
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 src/journal/journalctl.c | 1 +
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 1 file changed, 1 insertion(+)
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diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c
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index 11de07fcfa..e9faa24cae 100644
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--- a/src/journal/journalctl.c
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+++ b/src/journal/journalctl.c
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@@ -2746,5 +2746,6 @@ finish:
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                  * in scripts and such */
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                 r = -ENOENT;
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+        static_destruct();
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         return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
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 }