.gitignore

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+/vmemcache-0.8.tar.gz

0001-Don-t-let-gcc-replace-Zalloc-by-calloc.patch

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+From e2d1353a064a7ed93d7f384798ab1ae4a7bc0003 Mon Sep 17 00:00:00 2001
+From: Adam Borowski <kilobyte@angband.pl>
+Date: Tue, 25 Aug 2020 13:01:47 +0200
+Subject: [PATCH] Don't let gcc replace Zalloc by calloc.
+
+gcc-10's "tree pattern" optimizations have gotten smarter (or "smarter"...)
+and recognize malloc+memset as something that can be replaced with calloc.
+Alas, we rely on actual malloc calls (and instrumenting calloc is trickier
+than it seems), thus let's disable these optimizations.
+
+Because of paranoia, instead of a specific -fno- attribute, I'm disabling
+all optimizations for this function -- who knows that gcc-11 or clang-256
+will do?
+
+This was hidden by our Malloc redirection before, but LTO manages to
+find out the redirection was unused, and reveal the pattern.
+---
+ src/util.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/src/util.c b/src/util.c
+index ab3117f..c93e2fa 100644
+--- a/src/util.c
++++ b/src/util.c
+@@ -56,8 +56,10 @@ unsigned long long Mmap_align;
+  * Zalloc -- allocate zeroed memory
+  */
+ void *
++__attribute__((optimize(0)))
+ Zalloc(size_t sz)
+ {
++	/* gcc likes to replace this function as calloc() if optimizing */
+ 	void *ret = Malloc(sz);
+ 	if (!ret)
+ 		return NULL;
+-- 
+2.28.0
+

README.md

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+# vmemcache
+
+The vmemcache package

dead.package

@@ -1 +0,0 @@
-Discontinued upstream

sources

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+SHA512 (vmemcache-0.8.tar.gz) = 75d9759052faddc08ad515ed4e890385a5939943a376c9117666b7380395e4ab402929760e9cf48401e11da5b294b6749feba3e89ea7be24a754ac4644e520d8

vmemcache.spec

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+# The tests are failing for some reason if built out-of-source
+%global __cmake_in_source_build 1
+
+Name:		vmemcache
+Version:	0.8
+Release:	7%{?dist}
+Summary:	Buffer-based LRU cache
+
+License:	BSD
+URL:		https://github.com/pmem/vmemcache
+Source0:	https://github.com/pmem/vmemcache/archive/%{version}/%{name}-%{version}.tar.gz
+Patch0:		0001-Don-t-let-gcc-replace-Zalloc-by-calloc.patch
+ExclusiveArch:	x86_64 ppc64 ppc64le s390x aarch64
+
+BuildRequires:	cmake
+BuildRequires:	valgrind
+BuildRequires:	valgrind-devel
+BuildRequires:	pkg-config
+BuildRequires:	gcc
+BuildRequires:	pandoc
+
+%description
+Vmemcache is a volatile filesystem based key:value cache.  It works best
+when backed with a DAX-capable persistent memory device, but can work on
+tmpfs or on legacy disks.
+
+%package devel
+Summary:	Development files for %{name}
+Requires:	%{name}%{?_isa} = %{version}-%{release}
+
+%description devel
+The %{name}-devel package contains libraries and header files for
+developing applications that use %{name}.
+
+
+%prep
+%setup -q
+%patch0 -p1
+
+
+%build
+%cmake
+%cmake_build
+
+
+%install
+%cmake_install
+
+
+%check
+%ctest
+
+
+%files
+%{_libdir}/libvmemcache.so.0*
+%license LICENSE
+
+%files devel
+%{_includedir}/*.h
+%{_mandir}/*/vmemcache*
+%{_libdir}/libvmemcache.so
+%{_libdir}/pkgconfig/libvmemcache.pc
+%doc ChangeLog
+
+
+%changelog
+* Tue Aug 25 2020 Adam Borowski <kilobyte@angband.pl> 0.8-7
+- Re-enable LTO
+- Disable optimizations for a function miscompiled by new GCC.
+
+* Thu Aug 06 2020 Jeff Law <law@redhat.com> - 0.8-6
+- Disable LTO
+
+* Sat Aug 01 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.8-5
+- Second attempt - Rebuilt for
+  https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
+
+* Wed Jul 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.8-4
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
+
+* Fri Jan 31 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.8-3
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild
+
+* Sat Jul 27 2019 Fedora Release Engineering <releng@fedoraproject.org> - 0.8-2
+- Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
+
+* Mon Apr 15 2019 Adam Borowski <kilobyte@angband.pl> 0.8-1
+- Initial packaging