2025-07-24 13:55:40 +02:00

110 lines
3.8 KiB
Nix

{
lib,
stdenv,
fetchFromGitHub,
fetchpatch,
autogen,
autoconf,
automake,
# By default, jemalloc puts a je_ prefix onto all its symbols on OSX, which
# then stops downstream builds (mariadb in particular) from detecting it. This
# option should remove the prefix and give us a working jemalloc.
# Causes segfaults with some software (ex. rustc), but defaults to true for backward
# compatibility.
stripPrefix ? stdenv.hostPlatform.isDarwin,
disableInitExecTls ? false,
}:
stdenv.mkDerivation rec {
pname = "jemalloc";
version = "5.3.0";
src = fetchFromGitHub {
owner = "jemalloc";
repo = "jemalloc";
tag = version;
hash = "sha256-bb0OhZVXyvN+hf9BpPSykn5cGm87a0C+Y/iXKt9wTSs=";
};
patches = [
# fix tests under --with-jemalloc-prefix=, see https://github.com/jemalloc/jemalloc/pull/2340
(fetchpatch {
url = "https://github.com/jemalloc/jemalloc/commit/d00ecee6a8dfa90afcb1bbc0858985c17bef6559.patch";
hash = "sha256-N5i4IxGJ4SSAgFiq5oGRnrNeegdk2flw9Sh2mP0yl4c=";
})
# fix linking with libc++, can be removed in the next update (after 5.3.0).
# https://github.com/jemalloc/jemalloc/pull/2348
(fetchpatch {
url = "https://github.com/jemalloc/jemalloc/commit/4422f88d17404944a312825a1aec96cd9dc6c165.patch";
hash = "sha256-dunkE7XHzltn5bOb/rSHqzpRniAFuGubBStJeCxh0xo=";
})
# -O3 appears to introduce an unreproducibility where
# `rtree_read.constprop.0` shows up in some builds but
# not others, so we fall back to O2:
./o3-to-o2.patch
];
nativeBuildInputs = [
autogen
autoconf
automake
];
# TODO: switch to autoreconfHook when updating beyond 5.3.0
# https://github.com/jemalloc/jemalloc/issues/2346
configureScript = "./autogen.sh";
configureFlags = [
"--with-version=${version}-0-g0000000000000000000000000000000000000000"
"--with-lg-vaddr=${with stdenv.hostPlatform; toString (if isILP32 then 32 else parsed.cpu.bits)}"
]
# see the comment on stripPrefix
++ lib.optional stripPrefix "--with-jemalloc-prefix="
++ lib.optional disableInitExecTls "--disable-initial-exec-tls"
# jemalloc is unable to correctly detect transparent hugepage support on
# ARM (https://github.com/jemalloc/jemalloc/issues/526), and the default
# kernel ARMv6/7 kernel does not enable it, so we explicitly disable support
++ lib.optionals (stdenv.hostPlatform.isAarch32 && lib.versionOlder version "5") [
"--disable-thp"
"je_cv_thp=no"
]
# The upstream default is dependent on the builders' page size
# https://github.com/jemalloc/jemalloc/issues/467
# https://sources.debian.org/src/jemalloc/5.3.0-3/debian/rules/
++ [
(
if (stdenv.hostPlatform.isAarch64 || stdenv.hostPlatform.isLoongArch64) then
"--with-lg-page=16"
else
"--with-lg-page=12"
)
]
# See https://github.com/jemalloc/jemalloc/issues/1997
# Using a value of 48 should work on both emulated and native x86_64-darwin.
++ lib.optional (stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isx86_64) "--with-lg-vaddr=48";
env.NIX_CFLAGS_COMPILE = lib.optionalString stdenv.hostPlatform.isDarwin "-Wno-error=array-bounds";
# Tries to link test binaries binaries dynamically and fails
doCheck = !stdenv.hostPlatform.isStatic;
doInstallCheck = true;
installCheckPhase = ''
! grep missing_version_try_git_fetch_tags $out/include/jemalloc/jemalloc.h
'';
# Parallel builds break reproducibility.
enableParallelBuilding = false;
meta = with lib; {
homepage = "https://jemalloc.net/";
description = "General purpose malloc(3) implementation";
longDescription = ''
malloc(3)-compatible memory allocator that emphasizes fragmentation
avoidance and scalable concurrency support.
'';
license = licenses.bsd2;
platforms = platforms.all;
};
}