3.21.0-6 - Add valgrind-3.21.0-realloc-again.patch
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Mark Wielaard
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f579fefc75
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167
valgrind-3.21.0-realloc-again.patch
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167
valgrind-3.21.0-realloc-again.patch
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From b904112d7084227f8d6fab322bc360a8a6240a51 Mon Sep 17 00:00:00 2001
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From: Mark Wielaard <mark@klomp.org>
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Date: Thu, 1 Jun 2023 16:10:56 +0200
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Subject: [PATCH] memcheck: Handle Err_ReallocSizeZero in MC_(eq_Error)
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When an realloc size zero error is emitted MC_(eq_Error) is called to
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see if the errors can be deduplicated. This crashed since
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Err_ReallocSizeZero wasn't handled. Handle it like Err_Free.
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Also add a testcase for this case and test with both
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--realloc-zero-bytes-frees=yes and
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--realloc-zero-bytes-frees=no.
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Which will report a different number of errors.
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https://bugs.kde.org/show_bug.cgi?id=470520
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---
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memcheck/mc_errors.c | 1 +
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memcheck/tests/Makefile.am | 7 +++++++
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memcheck/tests/realloc_size_zero_again.c | 15 +++++++++++++++
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.../realloc_size_zero_again_no.stderr.exp | 18 ++++++++++++++++++
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.../realloc_size_zero_again_no.stdout.exp | 0
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.../tests/realloc_size_zero_again_no.vgtest | 2 ++
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.../realloc_size_zero_again_yes.stderr.exp | 18 ++++++++++++++++++
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.../realloc_size_zero_again_yes.stdout.exp | 0
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.../tests/realloc_size_zero_again_yes.vgtest | 2 ++
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9 files changed, 63 insertions(+)
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create mode 100644 memcheck/tests/realloc_size_zero_again.c
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create mode 100644 memcheck/tests/realloc_size_zero_again_no.stderr.exp
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create mode 100644 memcheck/tests/realloc_size_zero_again_no.stdout.exp
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create mode 100644 memcheck/tests/realloc_size_zero_again_no.vgtest
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create mode 100644 memcheck/tests/realloc_size_zero_again_yes.stderr.exp
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create mode 100644 memcheck/tests/realloc_size_zero_again_yes.stdout.exp
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create mode 100644 memcheck/tests/realloc_size_zero_again_yes.vgtest
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diff --git a/memcheck/mc_errors.c b/memcheck/mc_errors.c
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index 00d6ec301..65210a220 100644
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--- a/memcheck/mc_errors.c
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+++ b/memcheck/mc_errors.c
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@@ -1041,6 +1041,7 @@ Bool MC_(eq_Error) ( VgRes res, const Error* e1, const Error* e2 )
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case Err_IllegalMempool:
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case Err_Overlap:
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case Err_Cond:
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+ case Err_ReallocSizeZero:
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return True;
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case Err_FishyValue:
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diff --git a/memcheck/tests/Makefile.am b/memcheck/tests/Makefile.am
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index 71c38acba..5a17fd35d 100644
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--- a/memcheck/tests/Makefile.am
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+++ b/memcheck/tests/Makefile.am
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@@ -291,8 +291,14 @@ EXTRA_DIST = \
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realloc_size_zero.vgtest \
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realloc_size_zero_yes.stderr.exp realloc_size_zero_yes.stdout.exp \
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realloc_size_zero_yes.vgtest \
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+ realloc_size_zero_again_yes.stderr.exp \
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+ realloc_size_zero_again_yes.stdout.exp \
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+ realloc_size_zero_again_yes.vgtest \
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realloc_size_zero_no.stderr.exp realloc_size_zero_no.stdout.exp \
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realloc_size_zero_no.vgtest \
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+ realloc_size_zero_again_no.stderr.exp \
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+ realloc_size_zero_again_no.stdout.exp \
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+ realloc_size_zero_again_no.vgtest \
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realloc_size_zero_off.stderr.exp realloc_size_zero_off.stdout.exp \
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realloc_size_zero_off.vgtest \
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realloc_size_zero_mismatch.stderr.exp \
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@@ -459,6 +465,7 @@ check_PROGRAMS = \
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posix_memalign \
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post-syscall \
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realloc_size_zero realloc_size_zero_mismatch \
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+ realloc_size_zero_again \
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realloc1 realloc2 realloc3 \
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recursive-merge \
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resvn_stack \
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diff --git a/memcheck/tests/realloc_size_zero_again.c b/memcheck/tests/realloc_size_zero_again.c
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new file mode 100644
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index 000000000..782d4bde5
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--- /dev/null
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+++ b/memcheck/tests/realloc_size_zero_again.c
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@@ -0,0 +1,15 @@
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+#include <stdlib.h>
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+
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+int
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+main ()
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+{
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+ char *p = malloc (1024);
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+ for (int i = 3; i >= 0; i--)
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+ for (int j = 0; j <= 3; j++)
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+ {
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+ char *q = realloc (p, i * j * 512);
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+ p = q;
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+ }
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+
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+ free (p);
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+}
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diff --git a/memcheck/tests/realloc_size_zero_again_no.stderr.exp b/memcheck/tests/realloc_size_zero_again_no.stderr.exp
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new file mode 100644
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index 000000000..b9c061d1a
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--- /dev/null
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+++ b/memcheck/tests/realloc_size_zero_again_no.stderr.exp
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@@ -0,0 +1,18 @@
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+realloc() with size 0
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+ at 0x........: realloc (vg_replace_malloc.c:...)
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+ ...
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+ Address 0x........ is 0 bytes inside a block of size 1,024 alloc'd
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+ at 0x........: malloc (vg_replace_malloc.c:...)
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+ ...
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+
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+ERROR SUMMARY: 7 errors from 1 contexts (suppressed: 0 from 0)
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+
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+7 errors in context 1 of 1:
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+realloc() with size 0
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+ at 0x........: realloc (vg_replace_malloc.c:...)
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+ ...
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+ Address 0x........ is 0 bytes inside a block of size 1,024 alloc'd
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+ at 0x........: malloc (vg_replace_malloc.c:...)
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+ ...
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+
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+ERROR SUMMARY: 7 errors from 1 contexts (suppressed: 0 from 0)
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diff --git a/memcheck/tests/realloc_size_zero_again_no.stdout.exp b/memcheck/tests/realloc_size_zero_again_no.stdout.exp
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new file mode 100644
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index 000000000..e69de29bb
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diff --git a/memcheck/tests/realloc_size_zero_again_no.vgtest b/memcheck/tests/realloc_size_zero_again_no.vgtest
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new file mode 100644
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index 000000000..f1757b6c1
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--- /dev/null
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+++ b/memcheck/tests/realloc_size_zero_again_no.vgtest
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@@ -0,0 +1,2 @@
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+prog: realloc_size_zero_again
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+vgopts: -q -s --realloc-zero-bytes-frees=no
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diff --git a/memcheck/tests/realloc_size_zero_again_yes.stderr.exp b/memcheck/tests/realloc_size_zero_again_yes.stderr.exp
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new file mode 100644
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index 000000000..d40aa2455
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--- /dev/null
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+++ b/memcheck/tests/realloc_size_zero_again_yes.stderr.exp
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@@ -0,0 +1,18 @@
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+realloc() with size 0
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+ at 0x........: realloc (vg_replace_malloc.c:...)
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+ ...
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+ Address 0x........ is 0 bytes inside a block of size 1,024 alloc'd
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+ at 0x........: malloc (vg_replace_malloc.c:...)
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+ ...
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+
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+ERROR SUMMARY: 5 errors from 1 contexts (suppressed: 0 from 0)
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+
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+5 errors in context 1 of 1:
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+realloc() with size 0
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+ at 0x........: realloc (vg_replace_malloc.c:...)
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+ ...
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+ Address 0x........ is 0 bytes inside a block of size 1,024 alloc'd
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+ at 0x........: malloc (vg_replace_malloc.c:...)
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+ ...
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+
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+ERROR SUMMARY: 5 errors from 1 contexts (suppressed: 0 from 0)
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diff --git a/memcheck/tests/realloc_size_zero_again_yes.stdout.exp b/memcheck/tests/realloc_size_zero_again_yes.stdout.exp
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new file mode 100644
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index 000000000..e69de29bb
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diff --git a/memcheck/tests/realloc_size_zero_again_yes.vgtest b/memcheck/tests/realloc_size_zero_again_yes.vgtest
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new file mode 100644
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index 000000000..215392ed6
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--- /dev/null
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+++ b/memcheck/tests/realloc_size_zero_again_yes.vgtest
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@@ -0,0 +1,2 @@
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+prog: realloc_size_zero_again
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+vgopts: -q -s --realloc-zero-bytes-frees=yes
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--
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2.40.1
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@ -3,7 +3,7 @@
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Summary: Dynamic analysis tools to detect memory or thread bugs and profile
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Name: %{?scl_prefix}valgrind
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Version: 3.21.0
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Release: 5%{?dist}
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Release: 6%{?dist}
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Epoch: 1
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License: GPLv2+
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URL: https://www.valgrind.org/
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@ -99,6 +99,10 @@ Patch7: valgrind-3.21.0-epoll_pwait2.patch
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# https://bugs.kde.org/show_bug.cgi?id=470121
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Patch8: valgrind-3.21.0-callgrind_control-no-strict.patch
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# Multiple realloc zero errors crash in MC_(eq_Error)
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# https://bugs.kde.org/show_bug.cgi?id=470520
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Patch9: valgrind-3.21.0-realloc-again.patch
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BuildRequires: make
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BuildRequires: glibc-devel
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@ -240,6 +244,7 @@ Valgrind User Manual for details.
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%patch6 -p1
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%patch7 -p1
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%patch8 -p1
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%patch9 -p1
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%build
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@ -473,8 +478,9 @@ fi
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%endif
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%changelog
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* Thu Jun 1 2023 Mark Wielaard <mjw@fedoraproject.org>
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* Thu Jun 1 2023 Mark Wielaard <mjw@fedoraproject.org> - 3.21.0-6
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- Add valgrind-3.21.0-callgrind_control-no-strict.patch
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- Add valgrind-3.21.0-realloc-again.patch
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* Tue May 30 2023 Mark Wielaard <mjw@fedoraproject.org> - 3.21.0-5
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- Update valgrind-3.21.0-no-memcpy-replace-check.patch (memcpy_chk)
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