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https://github.com/termux/termux-packages.git
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e21578f662
Patched `rts` heap reservation logic on Android:
* Need for patch
- There seems to be a bug on Android. Sometimes simple commands like `ghc --help` usage 90% - 100% cpu and hangs.
- It doesn't happen every time, but ~25% of the times (at least in my
testing).
* Cause of the bug
- The function `osReserveHeapMemory` tries to allocate virtual space starting
from `0x4200000000`. The allocated space has to start at an address >= this address.
- If the kernel doesn't allocate inside this space, it keeps on repeating the
`mmap` call with increasing starting point.
- Now, on Android the kernel sometimes return an address above (as in counting)
this `hint` address. It repeatedly returns the same address for subsequent calls.
- Thus, an infinite loop occurs.
References:
- 383be28ffd/rts/posix/OSMem.c (L461)
- https://github.com/termux/termux-packages/pull/22991#issuecomment-2759137291
* Solution (proposed by Robert Kirkman):
- It introduces a new helper function `osTryReserveHeapMemoryRecursive`.
This transforms the heap reservation logic into a recursive one.
- `osTryReserveHeapMemory()` is run multiple times without unmapping the
undesired addresses. Thus, forcing the kernel to map subsequent calls of
`mmap` to a new, unique address until an address above the `0x4200000000`
mark is obtained.
- After which each recursive call unmaps its undesired address before returning
the desired address (in order from last mapped to first mapped).
References:
- https://gitlab.haskell.org/ghc/ghc/-/merge_requests/14164
- https://github.com/termux/termux-packages/pull/22991#issuecomment-2761325484
Co-authored-by: Robert Kirkman <rkirkman@termux.dev>
Signed-off-by: Aditya Alok <alok@termux.dev>
113 lines
3.6 KiB
Bash
113 lines
3.6 KiB
Bash
TERMUX_PKG_HOMEPAGE=https://www.haskell.org/ghc/
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TERMUX_PKG_DESCRIPTION="The Glasgow Haskell Compiler"
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TERMUX_PKG_LICENSE="custom"
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TERMUX_PKG_MAINTAINER="Aditya Alok <alok@termux.dev>"
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TERMUX_PKG_VERSION=9.12.2
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TERMUX_PKG_SRCURL="https://downloads.haskell.org/~ghc/$TERMUX_PKG_VERSION/ghc-$TERMUX_PKG_VERSION-src.tar.xz"
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TERMUX_PKG_SHA256=0e49cd5dde43f348c5716e5de9a5d7a0f8d68d945dc41cf75dfdefe65084f933
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TERMUX_PKG_DEPENDS="libiconv, libffi, libgmp, libandroid-posix-semaphore, ncurses"
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TERMUX_PKG_BUILD_IN_SRC=true
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TERMUX_PKG_EXTRA_CONFIGURE_ARGS="
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--host=$TERMUX_BUILD_TUPLE
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--with-system-libffi
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--disable-ld-override"
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TERMUX_PKG_NO_STATICSPLIT=true
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TERMUX_PKG_LICENSE_FILE="LICENSE"
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TERMUX_PKG_REPLACES="ghc-libs-static, ghc-libs"
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TERMUX_PKG_PROVIDES="ghc-libs, ghc-libs-static"
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__setup_bootstrap_compiler() {
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local version=9.10.1
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local temp_folder="$TERMUX_PKG_CACHEDIR/ghc-bootstrap-$version"
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local tarball="$temp_folder.tar.xz"
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local runtime_folder="$temp_folder-runtime"
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export PATH="$runtime_folder/bin:$PATH"
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[[ -d "$runtime_folder" ]] && return
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termux_download "https://downloads.haskell.org/~ghc/$version/ghc-$version-x86_64-ubuntu20_04-linux.tar.xz" \
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"$tarball" \
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ae3be406fdb73bd2b0c22baada77a8ff2f8cde6220dd591dc24541cfe9d895eb
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mkdir -p "$temp_folder" "$runtime_folder"
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tar xf "$tarball" --strip-components=1 -C "$temp_folder"
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(
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set -e
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unset CC CXX CFLAGS CXXFLAGS CPPFLAGS LDFLAGS AR AS CPP LD RANLIB READELF STRIP
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cd "$temp_folder"
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./configure --prefix="$runtime_folder"
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make install
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) &>/dev/null
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rm -Rf "$temp_folder" "$tarball"
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}
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termux_step_pre_configure() {
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__setup_bootstrap_compiler && termux_setup_cabal
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export CONF_CC_OPTS_STAGE2="$CFLAGS $CPPFLAGS"
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export CONF_GCC_LINKER_OPTS_STAGE2="$LDFLAGS"
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export CONF_CXX_OPTS_STAGE2="$CXXFLAGS"
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export target="$TERMUX_HOST_PLATFORM"
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export no_profiled_libs=""
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if [[ "$TERMUX_ARCH" == "arm" ]]; then
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target="armv7a-linux-androideabi"
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# NOTE: We do not build profiled libs for arm. It exceeds the 6 hours usage
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# limit of github CI.
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no_profiled_libs="+no_profiled_libs"
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fi
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TERMUX_PKG_EXTRA_CONFIGURE_ARGS="$TERMUX_PKG_EXTRA_CONFIGURE_ARGS --target=$target"
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./boot.source
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}
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termux_step_make() {
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(
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unset CFLAGS LDFLAGS CPPFLAGS # For hadrian compilation
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./hadrian/build binary-dist-dir \
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-j"$TERMUX_PKG_MAKE_PROCESSES" \
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--flavour="release$no_profiled_libs" --docs=none \
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"stage1.unix.ghc.link.opts += -optl-landroid-posix-semaphore"
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)
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}
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termux_step_make_install() {
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cd _build/bindist/ghc-"$TERMUX_PKG_VERSION"-"$target" || exit 1
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# Remove unnecessary flags. They would get written to settings file otherwise:
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unset CONF_CC_OPTS_STAGE2 CONF_GCC_LINKER_OPTS_STAGE2 CONF_CXX_OPTS_STAGE2
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# We need to re-run configure:
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# See: https://gitlab.haskell.org/ghc/ghc/-/issues/22058
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./configure \
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--prefix="$TERMUX_PREFIX" \
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--host="$target"
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HOST_GHC_PKG="$(realpath ../../stage0/bin/ghc-pkg)" make install
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}
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termux_step_post_massage() {
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local ghclibs_dir="lib/ghc-$TERMUX_PKG_VERSION"
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if ! [[ -d "$ghclibs_dir" ]]; then
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echo "ERROR: GHC lib directory is not at expected place. Please verify before continuing."
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exit 1
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fi
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# Remove version suffix from `llc` and `opt`:
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sed -i -E 's|("LLVM llc command",) "llc.*"|\1 "llc"|' "$ghclibs_dir"/lib/settings
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sed -i -E 's|("LLVM opt command",) "opt.*"|\1 "opt"|' "$ghclibs_dir"/lib/settings
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# Remove cross-prefix from tools:
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sed -i "s|$CC|${CC/${target}-/}|g" "$ghclibs_dir"/lib/settings
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sed -i "s|$CXX|${CXX/${target}-/}|g" "$ghclibs_dir"/lib/settings
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# Strip unneeded symbols:
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find . -type f \( -name "*.so" -o -name "*.a" \) -exec "$STRIP" --strip-unneeded {} \;
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find "$ghclibs_dir"/bin -type f -exec "$STRIP" {} \;
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}
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