{ lib, stdenv, fetchurl, fetchpatch, # 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 = fetchurl { url = "https://github.com/jemalloc/jemalloc/releases/download/${version}/${pname}-${version}.tar.bz2"; sha256 = "sha256-LbgtHnEZ3z5xt2QCGbbf6EeJvAU3mDw7esT3GJrs/qo="; }; 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="; }) ]; configureFlags = # 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.isAarch32 && lib.versionOlder version "5") [ "--disable-thp" "je_cv_thp=no" ] # AArch64 has configurable page size up to 64k. The default configuration # for jemalloc only supports 4k page sizes. ++ lib.optional stdenv.isAarch64 "--with-lg-page=16" # 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.isDarwin && stdenv.isx86_64) "--with-lg-vaddr=48"; env.NIX_CFLAGS_COMPILE = lib.optionalString stdenv.isDarwin "-Wno-error=array-bounds"; # Tries to link test binaries binaries dynamically and fails doCheck = !stdenv.hostPlatform.isStatic; enableParallelBuilding = true; 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; }; }