43cf733bfa
Special thanks to @retep998 for the [excellent writeup](https://github.com/rust-lang/rfcs/issues/1061) of tasks to be done and @ricky26 for initially blazing the trail here! # MSVC Support This goal of this series of commits is to add MSVC support to the Rust compiler and build system, allowing it more easily interoperate with Visual Studio installations and native libraries compiled outside of MinGW. The tl;dr; of this change is that there is a new target of the compiler, `x86_64-pc-windows-msvc`, which will not interact with the MinGW toolchain at all and will instead use `link.exe` to assemble output artifacts. ## Why try to use MSVC? With today's Rust distribution, when you install a compiler on Windows you also install `gcc.exe` and a number of supporting libraries by default (this can be opted out of). This allows installations to remain independent of MinGW installations, but it still generally requires native code to be linked with MinGW instead of MSVC. Some more background can also be found in #1768 about the incompatibilities between MinGW and MSVC. Overall the current installation strategy is quite nice so long as you don't interact with native code, but once you do the usage of a MinGW-based `gcc.exe` starts to get quite painful. Relying on a nonstandard Windows toolchain has also been a long-standing "code smell" of Rust and has been slated for remedy for quite some time now. Using a standard toolchain is a great motivational factor for improving the interoperability of Rust code with the native system. ## What does it mean to use MSVC? "Using MSVC" can be a bit of a nebulous concept, but this PR defines it as: * The build system for Rust will build as much code as possible with the MSVC compiler, `cl.exe`. * The build system will use native MSVC tools for managing archives. * The compiler will link all output with `link.exe` instead of `gcc.exe`. None of these are currently implemented today, but all are required for the compiler to fluently interoperate with MSVC. ## How does this all work? At the highest level, this PR adds a new target triple to the Rust compiler: x86_64-pc-windows-msvc All logic for using MSVC or not is scoped within this triple and code can conditionally build for MSVC or MinGW via: #[cfg(target_env = "msvc")] It is expected that auto builders will be set up for MSVC-based compiles in addition to the existing MinGW-based compiles, and we will likely soon start shipping MSVC nightlies where `x86_64-pc-windows-msvc` is the host target triple of the compiler. # Summary of changes Here I'll explain at a high level what many of the changes made were targeted at, but many more details can be found in the commits themselves. Many thanks to @retep998 for the excellent writeup in rust-lang/rfcs#1061 and @rick26 for a lot of the initial proof-of-concept work! ## Build system changes As is probably expected, a large chunk of this PR is changes to Rust's build system to build with MSVC. At a high level **it is an explicit non goal** to enable building outside of a MinGW shell, instead all Makefile infrastructure we have today is retrofitted with support to use MSVC instead of the standard MSVC toolchain. Some of the high-level changes are: * The configure script now detects when MSVC is being targeted and adds a number of additional requirements about the build environment: * The `--msvc-root` option must be specified or `cl.exe` must be in PATH to discover where MSVC is installed. The compiler in use is also required to target x86_64. * Once the MSVC root is known, the INCLUDE/LIB environment variables are scraped so they can be reexported by the build system. * CMake is required to build LLVM with MSVC (and LLVM is also configured with CMake instead of the normal configure script). * jemalloc is currently unconditionally disabled for MSVC targets as jemalloc isn't a hard requirement and I don't know how to build it with MSVC. * Invocations of a C and/or C++ compiler are now abstracted behind macros to appropriately call the underlying compiler with the correct format of arguments, for example there is now a macro for "assemble an archive from objects" instead of hard-coded invocations of `$(AR) crus liboutput.a ...` * The output filenames for standard libraries such as morestack/compiler-rt are now "more correct" on windows as they are shipped as `foo.lib` instead of `libfoo.a`. * Rust targets can now depend on native tools provided by LLVM, and as you'll see in the commits the entire MSVC target depends on `llvm-ar.exe`. * Support for custom arbitrary makefile dependencies of Rust targets has been added. The MSVC target for `rustc_llvm` currently requires a custom `.DEF` file to be passed to the linker to get further linkages to complete. ## Compiler changes The modifications made to the compiler have so far largely been minor tweaks here and there, mostly just adding a layer of abstraction over whether MSVC or a GNU-like linker is being used. At a high-level these changes are: * The section name for metadata storage in dynamic libraries is called `.rustc` for MSVC-based platorms as section names cannot contain more than 8 characters. * The implementation of `rustc_back::Archive` was refactored, but the functionality has remained the same. * Targets can now specify the default `ar` utility to use, and for MSVC this defaults to `llvm-ar.exe` * The building of the linker command in `rustc_trans:🔙:link` has been abstracted behind a trait for the same code path to be used between GNU and MSVC linkers. ## Standard library changes Only a few small changes were required to the stadnard library itself, and only for minor differences between the C runtime of msvcrt.dll and MinGW's libc.a * Some function names for floating point functions have leading underscores, and some are not present at all. * Linkage to the `advapi32` library for crypto-related functions is now explicit. * Some small bits of C code here and there were fixed for compatibility with MSVC's cl.exe compiler. # Future Work This commit is not yet a 100% complete port to using MSVC as there are still some key components missing as well as some unimplemented optimizations. This PR is already getting large enough that I wanted to draw the line here, but here's a list of what is not implemented in this PR, on purpose: ## Unwinding The revision of our LLVM submodule [does not seem to implement][llvm] does not support lowering SEH exception handling on the Windows MSVC targets, so unwinding support is not currently implemented for the standard library (it's lowered to an abort). [llvm]: https://github.com/rust-lang/llvm/blob/rust-llvm-2015-02-19/lib/CodeGen/Passes.cpp#L454-L461 It looks like, however, that upstream LLVM has quite a bit more support for SEH unwinding and landing pads than the current revision we have, so adding support will likely just involve updating LLVM and then adding some shims of our own here and there. ## dllimport and dllexport An interesting part of Windows which MSVC forces our hand on (and apparently MinGW didn't) is the usage of `dllimport` and `dllexport` attributes in LLVM IR as well as native dependencies (in C these correspond to `__declspec(dllimport)`). Whenever a dynamic library is built by MSVC it must have its public interface specified by functions tagged with `dllexport` or otherwise they're not available to be linked against. This poses a few problems for the compiler, some of which are somewhat fundamental, but this commit alters the compiler to attach the `dllexport` attribute to all LLVM functions that are reachable (e.g. they're already tagged with external linkage). This is suboptimal for a few reasons: * If an object file will never be included in a dynamic library, there's no need to attach the dllexport attribute. Most object files in Rust are not destined to become part of a dll as binaries are statically linked by default. * If the compiler is emitting both an rlib and a dylib, the same source object file is currently used but with MSVC this may be less feasible. The compiler may be able to get around this, but it may involve some invasive changes to deal with this. The flipside of this situation is that whenever you link to a dll and you import a function from it, the import should be tagged with `dllimport`. At this time, however, the compiler does not emit `dllimport` for any declarations other than constants (where it is required), which is again suboptimal for even more reasons! * Calling a function imported from another dll without using `dllimport` causes the linker/compiler to have extra overhead (one `jmp` instruction on x86) when calling the function. * The same object file may be used in different circumstances, so a function may be imported from a dll if the object is linked into a dll, but it may be just linked against if linked into an rlib. * The compiler has no knowledge about whether native functions should be tagged dllimport or not. For now the compiler takes the perf hit (I do not have any numbers to this effect) by marking very little as `dllimport` and praying the linker will take care of everything. Fixing this problem will likely require adding a few attributes to Rust itself (feature gated at the start) and then strongly recommending static linkage on Windows! This may also involve shipping a statically linked compiler on Windows instead of a dynamically linked compiler, but these sorts of changes are pretty invasive and aren't part of this PR. ## CI integration Thankfully we don't need to set up a new snapshot bot for the changes made here as our snapshots are freestanding already, we should be able to use the same snapshot to bootstrap both MinGW and MSVC compilers (once a new snapshot is made from these changes). I plan on setting up a new suite of auto bots which are testing MSVC configurations for now as well, for now they'll just be bootstrapping and not running tests, but once unwinding is implemented they'll start running all tests as well and we'll eventually start gating on them as well. --- I'd love as many eyes on this as we've got as this was one of my first interactions with MSVC and Visual Studio, so there may be glaring holes that I'm missing here and there! cc @retep998, @ricky26, @vadimcn, @klutzy r? @brson
1619 lines
45 KiB
Bash
Executable File
1619 lines
45 KiB
Bash
Executable File
#!/bin/sh
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msg() {
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echo "configure: $1"
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}
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step_msg() {
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msg
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msg "$1"
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msg
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}
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warn() {
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echo "configure: WARNING: $1"
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}
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err() {
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echo "configure: error: $1"
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exit 1
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}
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run() {
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msg "$@"
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"$@"
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}
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need_ok() {
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if [ $? -ne 0 ]
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then
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err "$1"
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fi
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}
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need_cmd() {
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if command -v $1 >/dev/null 2>&1
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then msg "found program $1"
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else err "need program $1"
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fi
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}
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make_dir() {
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if [ ! -d $1 ]
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then
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run mkdir -p $1
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fi
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}
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copy_if_changed() {
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if cmp -s $1 $2
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then
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msg "leaving $2 unchanged"
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else
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run cp -f $1 $2
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chmod u-w $2 # make copied artifact read-only
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fi
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}
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move_if_changed() {
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if cmp -s $1 $2
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then
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msg "leaving $2 unchanged"
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else
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run mv -f $1 $2
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chmod u-w $2 # make moved artifact read-only
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fi
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}
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putvar() {
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local T
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eval T=\$$1
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eval TLEN=\${#$1}
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if [ $TLEN -gt 35 ]
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then
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printf "configure: %-20s := %.35s ...\n" $1 "$T"
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else
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printf "configure: %-20s := %s %s\n" $1 "$T" "$2"
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fi
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printf "%-20s := %s\n" $1 "$T" >>config.tmp
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}
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putpathvar() {
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local T
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eval T=\$$1
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eval TLEN=\${#$1}
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if [ $TLEN -gt 35 ]
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then
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printf "configure: %-20s := %.35s ...\n" $1 "$T"
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else
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printf "configure: %-20s := %s %s\n" $1 "$T" "$2"
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fi
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if [ -z "$T" ]
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then
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printf "%-20s := \n" $1 >>config.tmp
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else
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printf "%-20s := \"%s\"\n" $1 "$T" >>config.tmp
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fi
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}
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probe() {
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local V=$1
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shift
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local P
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local T
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for P
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do
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T=$(command -v $P 2>&1)
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if [ $? -eq 0 ]
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then
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VER0=$($P --version 2>/dev/null \
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| grep -o '[vV]\?[0-9][0-9.][a-z0-9.-]*' | head -1 )
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if [ $? -eq 0 -a "x${VER0}" != "x" ]
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then
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VER="($VER0)"
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else
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VER=""
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fi
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break
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else
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VER=""
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T=""
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fi
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done
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eval $V=\$T
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putpathvar $V "$VER"
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}
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probe_need() {
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local V=$1
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probe $*
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eval VV=\$$V
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if [ -z "$VV" ]
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then
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err "needed, but unable to find any of: $*"
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fi
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}
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validate_opt () {
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for arg in $CFG_CONFIGURE_ARGS
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do
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isArgValid=0
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for option in $BOOL_OPTIONS
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do
|
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if test --disable-$option = $arg
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then
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isArgValid=1
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fi
|
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if test --enable-$option = $arg
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then
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isArgValid=1
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fi
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done
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for option in $VAL_OPTIONS
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do
|
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if echo "$arg" | grep -q -- "--$option="
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then
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isArgValid=1
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fi
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done
|
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if [ "$arg" = "--help" ]
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then
|
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echo
|
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echo "No more help available for Configure options,"
|
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echo "check the Wiki or join our IRC channel"
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break
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else
|
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if test $isArgValid -eq 0
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then
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err "Option '$arg' is not recognized"
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fi
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fi
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done
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}
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# `valopt OPTION_NAME DEFAULT DOC` extracts a string-valued option
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# from command line, using provided default value for the option if
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# not present, and saves it to the generated config.mk.
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#
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# `valopt_nosave` is much the same, except that it does not save the
|
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# result to config.mk (instead the script should use `putvar` itself
|
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# later on to save it). `valopt_core` is the core upon which the
|
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# other two are built.
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valopt_core() {
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VAL_OPTIONS="$VAL_OPTIONS $2"
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local SAVE=$1
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local OP=$2
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local DEFAULT=$3
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shift
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shift
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shift
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local DOC="$*"
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if [ $HELP -eq 0 ]
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then
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local UOP=$(echo $OP | tr '[:lower:]' '[:upper:]' | tr '\-' '\_')
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local V="CFG_${UOP}"
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local V_PROVIDED="${V}_PROVIDED"
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eval $V="$DEFAULT"
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for arg in $CFG_CONFIGURE_ARGS
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do
|
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if echo "$arg" | grep -q -- "--$OP="
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then
|
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val=$(echo "$arg" | cut -f2 -d=)
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eval $V=$val
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eval $V_PROVIDED=1
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fi
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done
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if [ "$SAVE" = "save" ]
|
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then
|
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putvar $V
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fi
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else
|
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if [ -z "$DEFAULT" ]
|
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then
|
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DEFAULT="<none>"
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fi
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OP="${OP}=[${DEFAULT}]"
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printf " --%-30s %s\n" "$OP" "$DOC"
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fi
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}
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valopt_nosave() {
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valopt_core nosave "$@"
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}
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valopt() {
|
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valopt_core save "$@"
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}
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|
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# `opt OPTION_NAME DEFAULT DOC` extracts a boolean-valued option from
|
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# command line, using the provided default value (0/1) for the option
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# if not present, and saves it to the generated config.mk.
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#
|
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# `opt_nosave` is much the same, except that it does not save the
|
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# result to config.mk (instead the script should use `putvar` itself
|
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# later on to save it). `opt_core` is the core upon which the other
|
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# two are built.
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opt_core() {
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BOOL_OPTIONS="$BOOL_OPTIONS $2"
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local SAVE=$1
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local OP=$2
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local DEFAULT=$3
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shift
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shift
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shift
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local DOC="$*"
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local FLAG=""
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|
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if [ $DEFAULT -eq 0 ]
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then
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FLAG="enable"
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DEFAULT_FLAG="disable"
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else
|
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FLAG="disable"
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DEFAULT_FLAG="enable"
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DOC="don't $DOC"
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fi
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|
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if [ $HELP -eq 0 ]
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then
|
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for arg in $CFG_CONFIGURE_ARGS
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do
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if [ "$arg" = "--${FLAG}-${OP}" ]
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then
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OP=$(echo $OP | tr 'a-z-' 'A-Z_')
|
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FLAG=$(echo $FLAG | tr 'a-z' 'A-Z')
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local V="CFG_${FLAG}_${OP}"
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local V_PROVIDED="CFG_${FLAG}_${OP}_PROVIDED"
|
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eval $V=1
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eval $V_PROVIDED=1
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if [ "$SAVE" = "save" ]
|
|
then
|
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putvar $V
|
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fi
|
|
elif [ "$arg" = "--${DEFAULT_FLAG}-${OP}" ]
|
|
then
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OP=$(echo $OP | tr 'a-z-' 'A-Z_')
|
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DEFAULT_FLAG=$(echo $DEFAULT_FLAG | tr 'a-z' 'A-Z')
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local V_PROVIDED="CFG_${DEFAULT_FLAG}_${OP}_PROVIDED"
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eval $V_PROVIDED=1
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fi
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done
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else
|
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if [ ! -z "$META" ]
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then
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OP="$OP=<$META>"
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fi
|
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printf " --%-30s %s\n" "$FLAG-$OP" "$DOC"
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fi
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}
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opt_nosave() {
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opt_core nosave "$@"
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}
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opt() {
|
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opt_core save "$@"
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}
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envopt() {
|
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local NAME=$1
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local V="CFG_${NAME}"
|
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eval VV=\$$V
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# If configure didn't set a value already, then check environment.
|
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#
|
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# (It is recommended that the configure script always check the
|
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# environment before setting any values to envopt variables; see
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# e.g. how CFG_CC is handled, where it first checks `-z "$CC"`,
|
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# and issues msg if it ends up employing that provided value.)
|
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if [ -z "$VV" ]
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then
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eval $V=\$$NAME
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eval VV=\$$V
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fi
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|
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# If script or environment provided a value, save it.
|
|
if [ ! -z "$VV" ]
|
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then
|
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putvar $V
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fi
|
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}
|
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|
|
to_llvm_triple() {
|
|
case $1 in
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i686-w64-mingw32) echo i686-pc-windows-gnu ;;
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x86_64-w64-mingw32) echo x86_64-pc-windows-gnu ;;
|
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*) echo $1 ;;
|
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esac
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}
|
|
|
|
to_gnu_triple() {
|
|
case $1 in
|
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i686-pc-windows-gnu) echo i686-w64-mingw32 ;;
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x86_64-pc-windows-gnu) echo x86_64-w64-mingw32 ;;
|
|
*) echo $1 ;;
|
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esac
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}
|
|
|
|
# Prints the absolute path of a directory to stdout
|
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abs_path() {
|
|
local _path="$1"
|
|
# Unset CDPATH because it causes havok: it makes the destination unpredictable
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|
# and triggers 'cd' to print the path to stdout. Route `cd`'s output to /dev/null
|
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# for good measure.
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(unset CDPATH && cd "$_path" > /dev/null && pwd)
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}
|
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|
|
msg "looking for configure programs"
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need_cmd cmp
|
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need_cmd mkdir
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|
need_cmd printf
|
|
need_cmd cut
|
|
need_cmd head
|
|
need_cmd grep
|
|
need_cmd xargs
|
|
need_cmd cp
|
|
need_cmd find
|
|
need_cmd uname
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|
need_cmd date
|
|
need_cmd tr
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|
need_cmd sed
|
|
need_cmd file
|
|
need_cmd make
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|
|
|
msg "inspecting environment"
|
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|
|
CFG_OSTYPE=$(uname -s)
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|
CFG_CPUTYPE=$(uname -m)
|
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|
|
if [ $CFG_OSTYPE = Darwin -a $CFG_CPUTYPE = i386 ]
|
|
then
|
|
# Darwin's `uname -s` lies and always returns i386. We have to use sysctl
|
|
# instead.
|
|
if sysctl hw.optional.x86_64 | grep -q ': 1'
|
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then
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CFG_CPUTYPE=x86_64
|
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fi
|
|
fi
|
|
|
|
# The goal here is to come up with the same triple as LLVM would,
|
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# at least for the subset of platforms we're willing to target.
|
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|
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case $CFG_OSTYPE in
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Linux)
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CFG_OSTYPE=unknown-linux-gnu
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;;
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|
FreeBSD)
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CFG_OSTYPE=unknown-freebsd
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;;
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DragonFly)
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CFG_OSTYPE=unknown-dragonfly
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;;
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Bitrig)
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CFG_OSTYPE=unknown-bitrig
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;;
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OpenBSD)
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|
CFG_OSTYPE=unknown-openbsd
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;;
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Darwin)
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CFG_OSTYPE=apple-darwin
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;;
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|
MINGW*)
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# msys' `uname` does not print gcc configuration, but prints msys
|
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# configuration. so we cannot believe `uname -m`:
|
|
# msys1 is always i686 and msys2 is always x86_64.
|
|
# instead, msys defines $MSYSTEM which is MINGW32 on i686 and
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# MINGW64 on x86_64.
|
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CFG_CPUTYPE=i686
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|
CFG_OSTYPE=pc-windows-gnu
|
|
if [ "$MSYSTEM" = MINGW64 ]
|
|
then
|
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CFG_CPUTYPE=x86_64
|
|
fi
|
|
;;
|
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|
|
MSYS*)
|
|
CFG_OSTYPE=pc-windows-gnu
|
|
;;
|
|
|
|
# Thad's Cygwin identifiers below
|
|
|
|
# Vista 32 bit
|
|
CYGWIN_NT-6.0)
|
|
CFG_OSTYPE=pc-windows-gnu
|
|
CFG_CPUTYPE=i686
|
|
;;
|
|
|
|
# Vista 64 bit
|
|
CYGWIN_NT-6.0-WOW64)
|
|
CFG_OSTYPE=pc-windows-gnu
|
|
CFG_CPUTYPE=x86_64
|
|
;;
|
|
|
|
# Win 7 32 bit
|
|
CYGWIN_NT-6.1)
|
|
CFG_OSTYPE=pc-windows-gnu
|
|
CFG_CPUTYPE=i686
|
|
;;
|
|
|
|
# Win 7 64 bit
|
|
CYGWIN_NT-6.1-WOW64)
|
|
CFG_OSTYPE=pc-windows-gnu
|
|
CFG_CPUTYPE=x86_64
|
|
;;
|
|
|
|
# Win 8 # uname -s on 64-bit cygwin does not contain WOW64, so simply use uname -m to detect arch (works in my install)
|
|
CYGWIN_NT-6.3)
|
|
CFG_OSTYPE=pc-windows-gnu
|
|
;;
|
|
# We do not detect other OS such as XP/2003 using 64 bit using uname.
|
|
# If we want to in the future, we will need to use Cygwin - Chuck's csih helper in /usr/lib/csih/winProductName.exe or alternative.
|
|
*)
|
|
err "unknown OS type: $CFG_OSTYPE"
|
|
;;
|
|
esac
|
|
|
|
|
|
case $CFG_CPUTYPE in
|
|
|
|
i386 | i486 | i686 | i786 | x86)
|
|
CFG_CPUTYPE=i686
|
|
;;
|
|
|
|
xscale | arm)
|
|
CFG_CPUTYPE=arm
|
|
;;
|
|
|
|
armv7l)
|
|
CFG_CPUTYPE=arm
|
|
CFG_OSTYPE="${CFG_OSTYPE}eabihf"
|
|
;;
|
|
|
|
aarch64)
|
|
CFG_CPUTYPE=aarch64
|
|
;;
|
|
|
|
# At some point, when ppc64[le] support happens, this will need to do
|
|
# something clever. For now it's safe to assume that we're only ever
|
|
# interested in building 32 bit.
|
|
powerpc | ppc | ppc64)
|
|
CFG_CPUTYPE=powerpc
|
|
;;
|
|
|
|
x86_64 | x86-64 | x64 | amd64)
|
|
CFG_CPUTYPE=x86_64
|
|
;;
|
|
|
|
*)
|
|
err "unknown CPU type: $CFG_CPUTYPE"
|
|
esac
|
|
|
|
# Detect 64 bit linux systems with 32 bit userland and force 32 bit compilation
|
|
if [ $CFG_OSTYPE = unknown-linux-gnu -a $CFG_CPUTYPE = x86_64 ]
|
|
then
|
|
# $SHELL does not exist in standard 'sh', so probably only exists
|
|
# if configure is running in an interactive bash shell. /usr/bin/env
|
|
# exists *everywhere*.
|
|
BIN_TO_PROBE="$SHELL"
|
|
if [ -z "$BIN_TO_PROBE" -a -e "/usr/bin/env" ]; then
|
|
BIN_TO_PROBE="/usr/bin/env"
|
|
fi
|
|
if [ -n "$BIN_TO_PROBE" ]; then
|
|
file -L "$BIN_TO_PROBE" | grep -q "x86[_-]64"
|
|
if [ $? != 0 ]; then
|
|
CFG_CPUTYPE=i686
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
|
|
DEFAULT_BUILD="${CFG_CPUTYPE}-${CFG_OSTYPE}"
|
|
|
|
CFG_SRC_DIR="$(abs_path $(dirname $0))/"
|
|
CFG_BUILD_DIR="$(pwd)/"
|
|
CFG_SELF="$0"
|
|
CFG_CONFIGURE_ARGS="$@"
|
|
|
|
OPTIONS=""
|
|
HELP=0
|
|
if [ "$1" = "--help" ]
|
|
then
|
|
HELP=1
|
|
shift
|
|
echo
|
|
echo "Usage: $CFG_SELF [options]"
|
|
echo
|
|
echo "Options:"
|
|
echo
|
|
else
|
|
msg "recreating config.tmp"
|
|
echo '' >config.tmp
|
|
|
|
step_msg "processing $CFG_SELF args"
|
|
fi
|
|
|
|
BOOL_OPTIONS=""
|
|
VAL_OPTIONS=""
|
|
|
|
opt debug 0 "debug mode; disables optimization unless \`--enable-optimize\` given"
|
|
opt valgrind 0 "run tests with valgrind (memcheck by default)"
|
|
opt helgrind 0 "run tests with helgrind instead of memcheck"
|
|
opt valgrind-rpass 1 "run rpass-valgrind tests with valgrind"
|
|
opt docs 1 "build standard library documentation"
|
|
opt compiler-docs 0 "build compiler documentation"
|
|
opt optimize-tests 1 "build tests with optimizations"
|
|
opt debuginfo-tests 0 "build tests with debugger metadata"
|
|
opt libcpp 1 "build with llvm with libc++ instead of libstdc++ when using clang"
|
|
opt llvm-assertions 0 "build LLVM with assertions"
|
|
opt debug-assertions 0 "build with debugging assertions"
|
|
opt fast-make 0 "use .gitmodules as timestamp for submodule deps"
|
|
opt ccache 0 "invoke gcc/clang via ccache to reuse object files between builds"
|
|
opt local-rust 0 "use an installed rustc rather than downloading a snapshot"
|
|
opt llvm-static-stdcpp 0 "statically link to libstdc++ for LLVM"
|
|
opt rpath 0 "build rpaths into rustc itself"
|
|
# This is used by the automation to produce single-target nightlies
|
|
opt dist-host-only 0 "only install bins for the host architecture"
|
|
opt inject-std-version 1 "inject the current compiler version of libstd into programs"
|
|
opt llvm-version-check 1 "don't check if the LLVM version is supported, build anyway"
|
|
|
|
# Optimization and debugging options. These may be overridden by the release channel, etc.
|
|
opt_nosave optimize 1 "build optimized rust code"
|
|
opt_nosave optimize-cxx 1 "build optimized C++ code"
|
|
opt_nosave optimize-llvm 1 "build optimized LLVM"
|
|
opt_nosave llvm-assertions 0 "build LLVM with assertions"
|
|
opt_nosave debug-assertions 0 "build with debugging assertions"
|
|
opt_nosave debuginfo 0 "build with debugger metadata"
|
|
opt_nosave debug-jemalloc 0 "build jemalloc with --enable-debug --enable-fill"
|
|
|
|
valopt localstatedir "/var/lib" "local state directory"
|
|
valopt sysconfdir "/etc" "install system configuration files"
|
|
|
|
valopt datadir "${CFG_PREFIX}/share" "install data"
|
|
valopt infodir "${CFG_PREFIX}/share/info" "install additional info"
|
|
valopt llvm-root "" "set LLVM root"
|
|
valopt jemalloc-root "" "set directory where libjemalloc_pic.a is located"
|
|
valopt build "${DEFAULT_BUILD}" "GNUs ./configure syntax LLVM build triple"
|
|
valopt android-cross-path "/opt/ndk_standalone" "Android NDK standalone path"
|
|
valopt release-channel "dev" "the name of the release channel to build"
|
|
valopt musl-root "/usr/local" "MUSL root installation directory"
|
|
|
|
# Many of these are saved below during the "writing configuration" step
|
|
# (others are conditionally saved).
|
|
opt_nosave manage-submodules 1 "let the build manage the git submodules"
|
|
opt_nosave clang 0 "prefer clang to gcc for building the runtime"
|
|
opt_nosave jemalloc 1 "build liballoc with jemalloc"
|
|
|
|
valopt_nosave prefix "/usr/local" "set installation prefix"
|
|
valopt_nosave local-rust-root "/usr/local" "set prefix for local rust binary"
|
|
valopt_nosave host "${CFG_BUILD}" "GNUs ./configure syntax LLVM host triples"
|
|
valopt_nosave target "${CFG_HOST}" "GNUs ./configure syntax LLVM target triples"
|
|
valopt_nosave mandir "${CFG_PREFIX}/share/man" "install man pages in PATH"
|
|
|
|
# Temporarily support old triples until buildbots get updated
|
|
CFG_BUILD=$(to_llvm_triple $CFG_BUILD)
|
|
putvar CFG_BUILD # Yes, this creates a duplicate entry, but the last one wins.
|
|
CFG_HOST=$(to_llvm_triple $CFG_HOST)
|
|
CFG_TARGET=$(to_llvm_triple $CFG_TARGET)
|
|
|
|
# On windows we just store the libraries in the bin directory because
|
|
# there's no rpath. This is where the build system itself puts libraries;
|
|
# --libdir is used to configure the installation directory.
|
|
# FIXME: This needs to parameterized over target triples. Do it in platform.mk
|
|
if [ "$CFG_OSTYPE" = "pc-windows-gnu" ] || [ "$CFG_OSTYPE" = "pc-windows-msvc" ]
|
|
then
|
|
CFG_LIBDIR_RELATIVE=bin
|
|
else
|
|
CFG_LIBDIR_RELATIVE=lib
|
|
fi
|
|
|
|
valopt libdir "${CFG_PREFIX}/${CFG_LIBDIR_RELATIVE}" "install libraries (do not set it on windows platform)"
|
|
|
|
case "$CFG_LIBDIR" in
|
|
"$CFG_PREFIX"/*) CAT_INC=2;;
|
|
"$CFG_PREFIX"*) CAT_INC=1;;
|
|
*)
|
|
err "libdir must begin with the prefix. Use --prefix to set it accordingly.";;
|
|
esac
|
|
|
|
CFG_LIBDIR_RELATIVE=`echo ${CFG_LIBDIR} | cut -c$((${#CFG_PREFIX}+${CAT_INC}))-`
|
|
|
|
if ( [ "$CFG_OSTYPE" = "pc-windows-gnu" ] || [ "$CFG_OSTYPE" = "pc-windows-msvc" ] ) \
|
|
&& [ "$CFG_LIBDIR_RELATIVE" != "bin" ]; then
|
|
err "libdir on windows should be set to 'bin'"
|
|
fi
|
|
|
|
if [ $HELP -eq 1 ]
|
|
then
|
|
echo
|
|
exit 0
|
|
fi
|
|
|
|
# Validate Options
|
|
step_msg "validating $CFG_SELF args"
|
|
validate_opt
|
|
|
|
# Validate the release channel, and configure options
|
|
case "$CFG_RELEASE_CHANNEL" in
|
|
nightly )
|
|
msg "overriding settings for $CFG_RELEASE_CHANNEL"
|
|
CFG_ENABLE_LLVM_ASSERTIONS=1
|
|
;;
|
|
dev | beta | stable)
|
|
;;
|
|
*)
|
|
err "release channel must be 'dev', 'nightly', 'beta' or 'stable'"
|
|
;;
|
|
esac
|
|
|
|
# Adjust perf and debug options for debug mode
|
|
if [ -n "$CFG_ENABLE_DEBUG" ]; then
|
|
msg "debug mode enabled, setting performance options"
|
|
if [ -z "$CFG_ENABLE_OPTIMIZE_PROVIDED" ]; then
|
|
msg "optimization not explicitly enabled, disabling optimization"
|
|
CFG_DISABLE_OPTIMIZE=1
|
|
CFG_DISABLE_OPTIMIZE_CXX=1
|
|
fi
|
|
CFG_ENABLE_DEBUG_ASSERTIONS=1
|
|
CFG_ENABLE_DEBUG_JEMALLOC=1
|
|
CFG_ENABLE_DEBUGINFO=1
|
|
CFG_ENABLE_LLVM_ASSERTIONS=1
|
|
fi
|
|
|
|
# OK, now write the debugging options
|
|
if [ -n "$CFG_DISABLE_OPTIMIZE" ]; then putvar CFG_DISABLE_OPTIMIZE; fi
|
|
if [ -n "$CFG_DISABLE_OPTIMIZE_CXX" ]; then putvar CFG_DISABLE_OPTIMIZE_CXX; fi
|
|
if [ -n "$CFG_DISABLE_OPTIMIZE_LLVM" ]; then putvar CFG_DISABLE_OPTIMIZE_LLVM; fi
|
|
if [ -n "$CFG_ENABLE_LLVM_ASSERTIONS" ]; then putvar CFG_ENABLE_LLVM_ASSERTIONS; fi
|
|
if [ -n "$CFG_ENABLE_DEBUG_ASSERTIONS" ]; then putvar CFG_ENABLE_DEBUG_ASSERTIONS; fi
|
|
if [ -n "$CFG_ENABLE_DEBUGINFO" ]; then putvar CFG_ENABLE_DEBUGINFO; fi
|
|
if [ -n "$CFG_ENABLE_DEBUG_JEMALLOC" ]; then putvar CFG_ENABLE_DEBUG_JEMALLOC; fi
|
|
|
|
# A magic value that allows the compiler to use unstable features
|
|
# during the bootstrap even when doing so would normally be an error
|
|
# because of feature staging or because the build turns on
|
|
# warnings-as-errors and unstable features default to warnings. The
|
|
# build has to match this key in an env var. Meant to be a mild
|
|
# deterrent from users just turning on unstable features on the stable
|
|
# channel.
|
|
# Basing CFG_BOOTSTRAP_KEY on CFG_BOOTSTRAP_KEY lets it get picked up
|
|
# during a Makefile reconfig.
|
|
CFG_BOOTSTRAP_KEY="${CFG_BOOTSTRAP_KEY-`date +%H:%M:%S`}"
|
|
putvar CFG_BOOTSTRAP_KEY
|
|
|
|
step_msg "looking for build programs"
|
|
|
|
probe_need CFG_CURLORWGET curl wget
|
|
probe_need CFG_PYTHON python2.7 python2.6 python2 python
|
|
|
|
python_version=$($CFG_PYTHON -V 2>&1)
|
|
if [ $(echo $python_version | grep -c '^Python 2\.[4567]') -ne 1 ]; then
|
|
err "Found $python_version, but LLVM requires Python 2.4-2.7"
|
|
fi
|
|
|
|
# If we have no git directory then we are probably a tarball distribution
|
|
# and shouldn't attempt to load submodules
|
|
if [ ! -e ${CFG_SRC_DIR}.git ]
|
|
then
|
|
probe CFG_GIT git
|
|
msg "git: no git directory. disabling submodules"
|
|
CFG_DISABLE_MANAGE_SUBMODULES=1
|
|
else
|
|
probe_need CFG_GIT git
|
|
fi
|
|
|
|
# Use `md5sum` on GNU platforms, or `md5 -q` on BSD
|
|
probe CFG_MD5 md5
|
|
probe CFG_MD5SUM md5sum
|
|
if [ -n "$CFG_MD5" ]
|
|
then
|
|
CFG_HASH_COMMAND="$CFG_MD5 -q | head -c 8"
|
|
elif [ -n "$CFG_MD5SUM" ]
|
|
then
|
|
CFG_HASH_COMMAND="$CFG_MD5SUM | head -c 8"
|
|
else
|
|
err 'could not find one of: md5 md5sum'
|
|
fi
|
|
putvar CFG_HASH_COMMAND
|
|
|
|
probe CFG_CLANG clang++
|
|
probe CFG_CCACHE ccache
|
|
probe CFG_GCC gcc
|
|
probe CFG_LD ld
|
|
probe CFG_VALGRIND valgrind
|
|
probe CFG_PERF perf
|
|
probe CFG_ISCC iscc
|
|
probe CFG_ANTLR4 antlr4
|
|
probe CFG_GRUN grun
|
|
probe CFG_FLEX flex
|
|
probe CFG_BISON bison
|
|
probe CFG_PANDOC pandoc
|
|
probe CFG_XELATEX xelatex
|
|
probe CFG_GDB gdb
|
|
probe CFG_LLDB lldb
|
|
|
|
# On MacOS X, invoking `javac` pops up a dialog if the JDK is not
|
|
# installed. Since `javac` is only used if `antlr4` is available,
|
|
# probe for it only in this case.
|
|
if [ ! -z "$CFG_ANTLR4" ]
|
|
then
|
|
probe CFG_JAVAC javac
|
|
fi
|
|
|
|
# the valgrind rpass tests will fail if you don't have a valgrind, but they're
|
|
# only disabled if you opt out.
|
|
if [ -z "$CFG_VALGRIND" ]
|
|
then
|
|
# If the user has explicitly asked for valgrind tests, then fail
|
|
if [ -n "$CFG_ENABLE_VALGRIND" ] && [ -n "$CFG_ENABLE_VALGRIND_PROVIDED" ]
|
|
then
|
|
err "No valgrind present, but valgrind tests explicitly requested"
|
|
else
|
|
CFG_DISABLE_VALGRIND_RPASS=1
|
|
putvar CFG_DISABLE_VALGRIND_RPASS
|
|
fi
|
|
fi
|
|
|
|
if [ ! -z "$CFG_GDB" ]
|
|
then
|
|
# Store GDB's version
|
|
CFG_GDB_VERSION=$($CFG_GDB --version 2>/dev/null | head -1)
|
|
putvar CFG_GDB_VERSION
|
|
fi
|
|
|
|
if [ ! -z "$CFG_LLDB" ]
|
|
then
|
|
# Store LLDB's version
|
|
CFG_LLDB_VERSION=$($CFG_LLDB --version 2>/dev/null | head -1)
|
|
putvar CFG_LLDB_VERSION
|
|
|
|
# If CFG_LLDB_PYTHON_DIR is not already set from the outside and valid, try to read it from
|
|
# LLDB via the -P commandline options.
|
|
if [ -z "$CFG_LLDB_PYTHON_DIR" ] || [ ! -d "$CFG_LLDB_PYTHON_DIR" ]
|
|
then
|
|
CFG_LLDB_PYTHON_DIR=$($CFG_LLDB -P)
|
|
|
|
# If CFG_LLDB_PYTHON_DIR is not a valid directory, set it to something more readable
|
|
if [ ! -d "$CFG_LLDB_PYTHON_DIR" ]
|
|
then
|
|
CFG_LLDB_PYTHON_DIR="LLDB_PYTHON_DIRECTORY_NOT_FOUND"
|
|
fi
|
|
|
|
putvar CFG_LLDB_PYTHON_DIR
|
|
fi
|
|
fi
|
|
|
|
step_msg "looking for target specific programs"
|
|
|
|
probe CFG_ADB adb
|
|
|
|
if [ ! -z "$CFG_PANDOC" ]
|
|
then
|
|
# Extract "MAJOR MINOR" from Pandoc's version number
|
|
PV_MAJOR_MINOR=$(pandoc --version | grep '^pandoc' |
|
|
sed -E 's/pandoc(.exe)? ([0-9]+)\.([0-9]+).*/\2 \3/')
|
|
|
|
MIN_PV_MAJOR="1"
|
|
MIN_PV_MINOR="9"
|
|
|
|
# these patterns are shell globs, *not* regexps
|
|
PV_MAJOR=${PV_MAJOR_MINOR% *}
|
|
PV_MINOR=${PV_MAJOR_MINOR#* }
|
|
|
|
if [ "$PV_MAJOR" -lt "$MIN_PV_MAJOR" ] || [ "$PV_MINOR" -lt "$MIN_PV_MINOR" ]
|
|
then
|
|
step_msg "pandoc $PV_MAJOR.$PV_MINOR is too old. Need at least $MIN_PV_MAJOR.$MIN_PV_MINOR. Disabling"
|
|
BAD_PANDOC=1
|
|
fi
|
|
fi
|
|
|
|
BIN_SUF=
|
|
if [ "$CFG_OSTYPE" = "pc-windows-gnu" ] || [ "$CFG_OSTYPE" = "pc-windows-msvc" ]
|
|
then
|
|
BIN_SUF=.exe
|
|
fi
|
|
|
|
if [ ! -z "$CFG_ENABLE_LOCAL_RUST" ]
|
|
then
|
|
system_rustc=$(which rustc)
|
|
if [ -f ${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF} ]
|
|
then
|
|
: # everything already configured
|
|
elif [ -n "$system_rustc" ]
|
|
then
|
|
# we assume that rustc is in a /bin directory
|
|
CFG_LOCAL_RUST_ROOT=${system_rustc%/bin/rustc}
|
|
else
|
|
err "no local rust to use"
|
|
fi
|
|
|
|
CMD="${CFG_LOCAL_RUST_ROOT}/bin/rustc${BIN_SUF}"
|
|
LRV=`$CMD --version`
|
|
if [ $? -ne 0 ]
|
|
then
|
|
step_msg "failure while running $CMD --version"
|
|
exit 1
|
|
fi
|
|
step_msg "using rustc at: ${CFG_LOCAL_RUST_ROOT} with version: $LRV"
|
|
putvar CFG_LOCAL_RUST_ROOT
|
|
fi
|
|
|
|
# Force freebsd to build with clang; gcc doesn't like us there
|
|
if [ $CFG_OSTYPE = unknown-freebsd ]
|
|
then
|
|
step_msg "on FreeBSD, forcing use of clang"
|
|
CFG_ENABLE_CLANG=1
|
|
fi
|
|
|
|
# Force bitrig to build with clang; gcc doesn't like us there
|
|
if [ $CFG_OSTYPE = unknown-bitrig ]
|
|
then
|
|
step_msg "on Bitrig, forcing use of clang, disabling jemalloc"
|
|
CFG_ENABLE_CLANG=1
|
|
CFG_DISABLE_JEMALLOC=1
|
|
fi
|
|
|
|
if [ -z "$CFG_ENABLE_CLANG" -a -z "$CFG_GCC" ]
|
|
then
|
|
err "either clang or gcc is required"
|
|
fi
|
|
|
|
# OS X 10.9, gcc is actually clang. This can cause some confusion in the build
|
|
# system, so if we find that gcc is clang, we should just use clang directly.
|
|
if [ $CFG_OSTYPE = apple-darwin -a -z "$CFG_ENABLE_CLANG" ]
|
|
then
|
|
CFG_OSX_GCC_VERSION=$("$CFG_GCC" --version 2>&1 | grep "Apple LLVM version")
|
|
if [ $? -eq 0 ]
|
|
then
|
|
step_msg "on OS X >=10.9, forcing use of clang"
|
|
CFG_ENABLE_CLANG=1
|
|
else
|
|
if [ $("$CFG_GCC" --version 2>&1 | grep -c ' 4\.[0-6]') -ne 0 ]; then
|
|
step_msg "older GCC found, using clang instead"
|
|
CFG_ENABLE_CLANG=1
|
|
else
|
|
# on OS X, with xcode 5 and newer, certain developers may have
|
|
# cc, gcc and g++ point to a mixture of clang and gcc
|
|
# if so, this will create very strange build errors
|
|
# this last stanza is to detect some such problems and save the future rust
|
|
# contributor some time solving that issue.
|
|
# this detection could be generalized to other OSes aside from OS X
|
|
# but the issue seems most likely to happen on OS X
|
|
|
|
chk_cc () {
|
|
$1 --version 2> /dev/null | grep -q $2
|
|
}
|
|
# check that gcc, cc and g++ all point to the same compiler.
|
|
# note that for xcode 5, g++ points to clang, not clang++
|
|
if !((chk_cc gcc clang && chk_cc g++ clang) ||
|
|
(chk_cc gcc gcc &&( chk_cc g++ g++ || chk g++ gcc))); then
|
|
err "the gcc and g++ in your path point to different compilers.
|
|
Check which versions are in your path with gcc --version and g++ --version.
|
|
To resolve this problem, either fix your PATH or run configure with --enable-clang"
|
|
fi
|
|
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
# Okay, at this point, we have made up our minds about whether we are
|
|
# going to force CFG_ENABLE_CLANG or not; save the setting if so.
|
|
if [ ! -z "$CFG_ENABLE_CLANG" ]
|
|
then
|
|
putvar CFG_ENABLE_CLANG
|
|
fi
|
|
|
|
# Same with jemalloc. save the setting here.
|
|
if [ ! -z "$CFG_DISABLE_JEMALLOC" ]
|
|
then
|
|
putvar CFG_DISABLE_JEMALLOC
|
|
fi
|
|
|
|
if [ ! -z "$CFG_LLVM_ROOT" -a -z "$CFG_DISABLE_LLVM_VERSION_CHECK" -a -e "$CFG_LLVM_ROOT/bin/llvm-config" ]
|
|
then
|
|
step_msg "using custom LLVM at $CFG_LLVM_ROOT"
|
|
|
|
LLVM_CONFIG="$CFG_LLVM_ROOT/bin/llvm-config"
|
|
LLVM_VERSION=$($LLVM_CONFIG --version)
|
|
|
|
case $LLVM_VERSION in
|
|
(3.[5-6]*)
|
|
msg "found ok version of LLVM: $LLVM_VERSION"
|
|
;;
|
|
(*)
|
|
err "bad LLVM version: $LLVM_VERSION, need >=3.5"
|
|
;;
|
|
esac
|
|
fi
|
|
|
|
# Even when the user overrides the choice of CC, still try to detect
|
|
# clang to disable some clang-specific warnings. We here draw a
|
|
# distinction between:
|
|
#
|
|
# CFG_ENABLE_CLANG : passed --enable-clang, or host "requires" clang,
|
|
# CFG_USING_CLANG : compiler (clang / gcc / $CC) looks like clang.
|
|
#
|
|
# This distinction is important because there are some safeguards we
|
|
# would prefer to skip when merely CFG_USING_CLANG is set; but when
|
|
# CFG_ENABLE_CLANG is set, that indicates that we are opting into
|
|
# running such safeguards.
|
|
|
|
if [ ! -z "$CC" ]
|
|
then
|
|
msg "skipping compiler inference steps; using provided CC=$CC"
|
|
CFG_CC="$CC"
|
|
|
|
CFG_OSX_CC_VERSION=$("$CFG_CC" --version 2>&1 | grep "clang")
|
|
if [ $? -eq 0 ]
|
|
then
|
|
step_msg "note, user-provided CC looks like clang; CC=$CC."
|
|
CFG_USING_CLANG=1
|
|
putvar CFG_USING_CLANG
|
|
fi
|
|
else
|
|
if [ ! -z "$CFG_ENABLE_CLANG" ]
|
|
then
|
|
if [ -z "$CFG_CLANG" ]
|
|
then
|
|
err "clang requested but not found"
|
|
fi
|
|
CFG_CC="$CFG_CLANG"
|
|
CFG_USING_CLANG=1
|
|
putvar CFG_USING_CLANG
|
|
else
|
|
CFG_CC="gcc"
|
|
fi
|
|
fi
|
|
|
|
if [ ! -z "$CFG_ENABLE_CLANG" ]
|
|
then
|
|
if [ -z "$CC" ] || [[ $CC == *clang ]]
|
|
then
|
|
CFG_CLANG_VERSION=$($CFG_CC \
|
|
--version \
|
|
| grep version \
|
|
| sed 's/.*\(version .*\)/\1/; s/.*based on \(LLVM .*\))/\1/' \
|
|
| cut -d ' ' -f 2)
|
|
|
|
case $CFG_CLANG_VERSION in
|
|
(3.2* | 3.3* | 3.4* | 3.5* | 3.6*)
|
|
step_msg "found ok version of CLANG: $CFG_CLANG_VERSION"
|
|
if [ -z "$CC" ]
|
|
then
|
|
CFG_CC="clang"
|
|
CFG_CXX="clang++"
|
|
fi
|
|
;;
|
|
(*)
|
|
err "bad CLANG version: $CFG_CLANG_VERSION, need >=3.0svn"
|
|
;;
|
|
esac
|
|
else
|
|
msg "skipping CFG_ENABLE_CLANG version check; provided CC=$CC"
|
|
fi
|
|
fi
|
|
|
|
if [ ! -z "$CFG_ENABLE_CCACHE" ]
|
|
then
|
|
if [ -z "$CC" ]
|
|
then
|
|
if [ -z "$CFG_CCACHE" ]
|
|
then
|
|
err "ccache requested but not found"
|
|
fi
|
|
|
|
CFG_CC="ccache $CFG_CC"
|
|
fi
|
|
fi
|
|
|
|
if [ -z "$CC" -a -z "$CFG_ENABLE_CLANG" -a -z "$CFG_GCC" ]
|
|
then
|
|
err "either clang or gcc is required"
|
|
fi
|
|
|
|
# All safeguards based on $CFG_ENABLE_CLANG should occur before this
|
|
# point in the script; after this point, script logic should inspect
|
|
# $CFG_USING_CLANG rather than $CFG_ENABLE_CLANG.
|
|
|
|
# Set CFG_{CC,CXX,CPP,CFLAGS,CXXFLAGS}
|
|
envopt CC
|
|
envopt CXX
|
|
envopt CPP
|
|
envopt CFLAGS
|
|
envopt CXXFLAGS
|
|
|
|
# a little post-processing of various config values
|
|
CFG_PREFIX=${CFG_PREFIX%/}
|
|
CFG_MANDIR=${CFG_MANDIR%/}
|
|
CFG_HOST="$(echo $CFG_HOST | tr ',' ' ')"
|
|
CFG_TARGET="$(echo $CFG_TARGET | tr ',' ' ')"
|
|
CFG_SUPPORTED_TARGET=""
|
|
for target_file in ${CFG_SRC_DIR}mk/cfg/*.mk; do
|
|
CFG_SUPPORTED_TARGET="${CFG_SUPPORTED_TARGET} $(basename "$target_file" .mk)"
|
|
done
|
|
|
|
# copy host-triples to target-triples so that hosts are a subset of targets
|
|
V_TEMP=""
|
|
for i in $CFG_HOST $CFG_TARGET;
|
|
do
|
|
echo "$V_TEMP" | grep -qF $i || V_TEMP="$V_TEMP${V_TEMP:+ }$i"
|
|
done
|
|
CFG_TARGET=$V_TEMP
|
|
|
|
# check target-specific tool-chains
|
|
for i in $CFG_TARGET
|
|
do
|
|
L_CHECK=false
|
|
for j in $CFG_SUPPORTED_TARGET
|
|
do
|
|
if [ $i = $j ]
|
|
then
|
|
L_CHECK=true
|
|
fi
|
|
done
|
|
|
|
if [ $L_CHECK = false ]
|
|
then
|
|
err "unsupported target triples \"$i\" found"
|
|
fi
|
|
|
|
case $i in
|
|
arm-linux-androideabi)
|
|
|
|
if [ ! -f $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-gcc ]
|
|
then
|
|
err "NDK $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-gcc not found"
|
|
fi
|
|
if [ ! -f $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-g++ ]
|
|
then
|
|
err "NDK $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-g++ not found"
|
|
fi
|
|
if [ ! -f $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-ar ]
|
|
then
|
|
err "NDK $CFG_ANDROID_CROSS_PATH/bin/arm-linux-androideabi-ar not found"
|
|
fi
|
|
;;
|
|
|
|
arm-apple-darwin)
|
|
if [ $CFG_OSTYPE != apple-darwin ]
|
|
then
|
|
err "The iOS target is only supported on Mac OS X"
|
|
fi
|
|
;;
|
|
|
|
|
|
*-musl)
|
|
if [ ! -f $CFG_MUSL_ROOT/lib/libc.a ]
|
|
then
|
|
err "musl libc $CFG_MUSL_ROOT/lib/libc.a not found"
|
|
fi
|
|
;;
|
|
|
|
x86_64-*-msvc)
|
|
# Currently the build system is not configured to build jemalloc
|
|
# with MSVC, so we omit this optional dependency.
|
|
step_msg "targeting MSVC, disabling jemalloc"
|
|
CFG_DISABLE_JEMALLOC=1
|
|
putvar CFG_DISABLE_JEMALLOC
|
|
|
|
# There are some MSYS python builds which will auto-translate
|
|
# windows-style paths to MSYS-style paths in Python itself.
|
|
# Unfortunately this breaks LLVM's build system as somewhere along
|
|
# the line LLVM prints a path into a file from Python and then CMake
|
|
# later tries to interpret that path. If Python prints a MSYS path
|
|
# and CMake tries to use it as a Windows path, you're gonna have a
|
|
# Bad Time.
|
|
#
|
|
# Consequently here we try to detect when that happens and print an
|
|
# error if it does.
|
|
if $CFG_PYTHON -c 'import sys; print sys.argv[1]' `pwd` | grep '^/'
|
|
then
|
|
err "python is silently translating windows paths to MSYS paths \
|
|
and the build will fail if this python is used.\n\n \
|
|
Either an official python install must be used or an \
|
|
alternative python package in MinGW must be used."
|
|
fi
|
|
|
|
# MSVC requires cmake because that's how we're going to build LLVM
|
|
probe_need CFG_CMAKE cmake
|
|
|
|
# Use the REG program to figure out where VS is installed
|
|
# We need to figure out where cl.exe and link.exe are, so we do some
|
|
# munging and some probing here. We also look for the default
|
|
# INCLUDE and LIB variables for MSVC so we can set those in the
|
|
# build system as well.
|
|
install=$(reg QUERY \
|
|
'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\12.0' \
|
|
-v InstallDir)
|
|
need_ok "couldn't find visual studio install root"
|
|
CFG_MSVC_ROOT=$(echo "$install" | grep InstallDir | sed 's/.*REG_SZ[ ]*//')
|
|
CFG_MSVC_ROOT=$(dirname "$CFG_MSVC_ROOT")
|
|
CFG_MSVC_ROOT=$(dirname "$CFG_MSVC_ROOT")
|
|
CFG_MSVC_CL="${CFG_MSVC_ROOT}/VC/bin/amd64/cl.exe"
|
|
CFG_MSVC_LIB="${CFG_MSVC_ROOT}/VC/bin/amd64/lib.exe"
|
|
CFG_MSVC_LINK="${CFG_MSVC_ROOT}/VC/bin/amd64/link.exe"
|
|
|
|
vcvarsall="${CFG_MSVC_ROOT}/VC/vcvarsall.bat"
|
|
CFG_MSVC_INCLUDE_PATH=$(cmd /c "\"$vcvarsall\" amd64 && cmd /c echo %INCLUDE%")
|
|
need_ok "failed to learn about MSVC's INCLUDE"
|
|
CFG_MSVC_LIB_PATH=$(cmd /c "\"$vcvarsall\" amd64 && cmd /c echo %LIB%")
|
|
need_ok "failed to learn about MSVC's LIB"
|
|
|
|
putvar CFG_MSVC_ROOT
|
|
putvar CFG_MSVC_CL
|
|
putvar CFG_MSVC_LIB
|
|
putvar CFG_MSVC_LINK
|
|
putvar CFG_MSVC_INCLUDE_PATH
|
|
putvar CFG_MSVC_LIB_PATH
|
|
;;
|
|
|
|
*)
|
|
;;
|
|
esac
|
|
done
|
|
|
|
if [ ! -z "$CFG_PERF" ]
|
|
then
|
|
HAVE_PERF_LOGFD=`$CFG_PERF stat --log-fd 2>&1 | grep 'unknown option'`
|
|
if [ -z "$HAVE_PERF_LOGFD" ];
|
|
then
|
|
CFG_PERF_WITH_LOGFD=1
|
|
putvar CFG_PERF_WITH_LOGFD
|
|
fi
|
|
fi
|
|
|
|
step_msg "making directories"
|
|
|
|
for i in \
|
|
doc doc/std doc/extra \
|
|
dl tmp dist
|
|
do
|
|
make_dir $i
|
|
done
|
|
|
|
for t in $CFG_HOST
|
|
do
|
|
make_dir $t/llvm
|
|
done
|
|
|
|
for t in $CFG_HOST
|
|
do
|
|
make_dir $t/rustllvm
|
|
done
|
|
|
|
for t in $CFG_TARGET
|
|
do
|
|
make_dir $t/rt
|
|
for s in 0 1 2 3
|
|
do
|
|
make_dir $t/rt/stage$s
|
|
make_dir $t/rt/jemalloc
|
|
make_dir $t/rt/compiler-rt
|
|
for i in \
|
|
isaac sync test \
|
|
arch/i386 arch/x86_64 arch/arm arch/aarch64 arch/mips arch/powerpc
|
|
do
|
|
make_dir $t/rt/stage$s/$i
|
|
done
|
|
done
|
|
done
|
|
|
|
for h in $CFG_HOST
|
|
do
|
|
for t in $CFG_TARGET
|
|
do
|
|
# host lib dir stage0
|
|
make_dir $h/stage0/lib
|
|
|
|
# target bin dir stage0
|
|
make_dir $h/stage0/lib/rustlib/$t/bin
|
|
|
|
# target lib dir stage0
|
|
make_dir $h/stage0/lib/rustlib/$t/lib
|
|
|
|
for i in 0 1 2 3
|
|
do
|
|
# host bin dir
|
|
make_dir $h/stage$i/bin
|
|
|
|
# host lib dir
|
|
make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE
|
|
|
|
# host test dir
|
|
make_dir $h/stage$i/test
|
|
|
|
# target bin dir
|
|
make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/bin
|
|
|
|
# target lib dir
|
|
make_dir $h/stage$i/$CFG_LIBDIR_RELATIVE/rustlib/$t/lib
|
|
done
|
|
done
|
|
|
|
make_dir $h/test/run-pass
|
|
make_dir $h/test/run-pass-valgrind
|
|
make_dir $h/test/run-pass-fulldeps
|
|
make_dir $h/test/run-fail
|
|
make_dir $h/test/run-fail-fulldeps
|
|
make_dir $h/test/compile-fail
|
|
make_dir $h/test/parse-fail
|
|
make_dir $h/test/compile-fail-fulldeps
|
|
make_dir $h/test/bench
|
|
make_dir $h/test/perf
|
|
make_dir $h/test/pretty
|
|
make_dir $h/test/debuginfo-gdb
|
|
make_dir $h/test/debuginfo-lldb
|
|
make_dir $h/test/codegen
|
|
make_dir $h/test/rustdoc
|
|
done
|
|
|
|
# Configure submodules
|
|
step_msg "configuring submodules"
|
|
|
|
# Have to be in the top of src directory for this
|
|
if [ -z $CFG_DISABLE_MANAGE_SUBMODULES ]
|
|
then
|
|
cd ${CFG_SRC_DIR}
|
|
|
|
msg "git: submodule sync"
|
|
"${CFG_GIT}" submodule sync
|
|
|
|
msg "git: submodule init"
|
|
"${CFG_GIT}" submodule init
|
|
|
|
# Disable submodules that we're not using
|
|
if [ ! -z "${CFG_LLVM_ROOT}" ]; then
|
|
msg "git: submodule deinit src/llvm"
|
|
"${CFG_GIT}" submodule deinit src/llvm
|
|
fi
|
|
if [ ! -z "${CFG_JEMALLOC_ROOT}" ]; then
|
|
msg "git: submodule deinit src/jemalloc"
|
|
"${CFG_GIT}" submodule deinit src/jemalloc
|
|
fi
|
|
|
|
msg "git: submodule update"
|
|
"${CFG_GIT}" submodule update
|
|
need_ok "git failed"
|
|
|
|
msg "git: submodule foreach sync"
|
|
"${CFG_GIT}" submodule foreach --recursive 'if test -e .gitmodules; then git submodule sync; fi'
|
|
need_ok "git failed"
|
|
|
|
msg "git: submodule foreach update"
|
|
"${CFG_GIT}" submodule update --recursive
|
|
need_ok "git failed"
|
|
|
|
# NB: this is just for the sake of getting the submodule SHA1 values
|
|
# and status written into the build log.
|
|
msg "git: submodule status"
|
|
"${CFG_GIT}" submodule status --recursive
|
|
|
|
msg "git: submodule clobber"
|
|
"${CFG_GIT}" submodule foreach --recursive git clean -dxf
|
|
need_ok "git failed"
|
|
"${CFG_GIT}" submodule foreach --recursive git checkout .
|
|
need_ok "git failed"
|
|
|
|
cd ${CFG_BUILD_DIR}
|
|
fi
|
|
|
|
# Configure llvm, only if necessary
|
|
step_msg "looking at LLVM"
|
|
CFG_LLVM_SRC_DIR=${CFG_SRC_DIR}src/llvm/
|
|
for t in $CFG_HOST
|
|
do
|
|
do_reconfigure=1
|
|
|
|
if [ -z $CFG_LLVM_ROOT ]
|
|
then
|
|
LLVM_BUILD_DIR=${CFG_BUILD_DIR}$t/llvm
|
|
if [ ! -z "$CFG_DISABLE_OPTIMIZE_LLVM" ]
|
|
then
|
|
LLVM_DBG_OPTS="--enable-debug-symbols --disable-optimized"
|
|
# Just use LLVM straight from its build directory to
|
|
# avoid 'make install' time
|
|
LLVM_INST_DIR=$LLVM_BUILD_DIR/Debug
|
|
else
|
|
LLVM_DBG_OPTS="--enable-optimized"
|
|
LLVM_INST_DIR=$LLVM_BUILD_DIR/Release
|
|
fi
|
|
if [ -z "$CFG_ENABLE_LLVM_ASSERTIONS" ]
|
|
then
|
|
LLVM_ASSERTION_OPTS="--disable-assertions"
|
|
else
|
|
LLVM_ASSERTION_OPTS="--enable-assertions"
|
|
LLVM_INST_DIR=${LLVM_INST_DIR}+Asserts
|
|
fi
|
|
else
|
|
msg "not reconfiguring LLVM, external LLVM root"
|
|
# The user is using their own LLVM
|
|
LLVM_BUILD_DIR=
|
|
LLVM_INST_DIR=$CFG_LLVM_ROOT
|
|
do_reconfigure=0
|
|
fi
|
|
|
|
|
|
if [ ${do_reconfigure} -ne 0 ]
|
|
then
|
|
# because git is hilarious, it might have put the module index
|
|
# in a couple places.
|
|
index1="${CFG_SRC_DIR}.git/modules/src/llvm/index"
|
|
index2="${CFG_SRC_DIR}src/llvm/.git/index"
|
|
for index in ${index1} ${index2}
|
|
do
|
|
config_status="${LLVM_BUILD_DIR}/config.status"
|
|
if test -e ${index} -a \
|
|
-e ${config_status} -a \
|
|
${config_status} -nt ${index}
|
|
then
|
|
msg "not reconfiguring LLVM, config.status is fresh"
|
|
do_reconfigure=0
|
|
fi
|
|
done
|
|
fi
|
|
|
|
use_cmake=0
|
|
case "$t" in
|
|
(*-msvc)
|
|
use_cmake=1
|
|
;;
|
|
esac
|
|
|
|
if [ ${do_reconfigure} -ne 0 ] && [ ${use_cmake} -ne 0 ]
|
|
then
|
|
msg "configuring LLVM for $t with cmake"
|
|
|
|
CMAKE_ARGS="-DLLVM_INCLUDE_TESTS=OFF"
|
|
if [ ! -z "$CFG_DISABLE_OPTIMIZE_LLVM" ]; then
|
|
CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_BUILD_TYPE=Debug"
|
|
else
|
|
CMAKE_ARGS="$CMAKE_ARGS -DCMAKE_BUILD_TYPE=Release"
|
|
fi
|
|
if [ -z "$CFG_ENABLE_LLVM_ASSERTIONS" ]
|
|
then
|
|
CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_ASSERTIONS=OFF"
|
|
else
|
|
CMAKE_ARGS="$CMAKE_ARGS -DLLVM_ENABLE_ASSERTIONS=ON"
|
|
fi
|
|
|
|
msg "configuring LLVM with:"
|
|
msg "$CMAKE_ARGS"
|
|
(cd $LLVM_BUILD_DIR && "$CFG_CMAKE" $CFG_LLVM_SRC_DIR \
|
|
-G "Visual Studio 12 2013 Win64" \
|
|
$CMAKE_ARGS)
|
|
need_ok "LLVM cmake configure failed"
|
|
fi
|
|
|
|
if [ ${do_reconfigure} -ne 0 ] && [ ${use_cmake} -eq 0 ]
|
|
then
|
|
# LLVM's configure doesn't recognize the new Windows triples yet
|
|
gnu_t=$(to_gnu_triple $t)
|
|
|
|
msg "configuring LLVM for $gnu_t"
|
|
|
|
LLVM_TARGETS="--enable-targets=x86,x86_64,arm,aarch64,mips,powerpc"
|
|
LLVM_BUILD="--build=$gnu_t"
|
|
LLVM_HOST="--host=$gnu_t"
|
|
LLVM_TARGET="--target=$gnu_t"
|
|
|
|
# Disable unused LLVM features
|
|
LLVM_OPTS="$LLVM_DBG_OPTS $LLVM_ASSERTION_OPTS --disable-docs --enable-bindings=none"
|
|
# Disable term-info, linkage of which comes in multiple forms,
|
|
# making our snapshots incompatible (#9334)
|
|
LLVM_OPTS="$LLVM_OPTS --disable-terminfo"
|
|
# Try to have LLVM pull in as few dependencies as possible (#9397)
|
|
LLVM_OPTS="$LLVM_OPTS --disable-zlib --disable-libffi"
|
|
|
|
# Use win32 native thread/lock apis instead of pthread wrapper.
|
|
# (llvm's configure tries to find pthread first, so we have to disable it explicitly.)
|
|
# Also note that pthreads works badly on mingw-w64 systems: #8996
|
|
case "$CFG_BUILD" in
|
|
(*-windows-gnu)
|
|
LLVM_OPTS="$LLVM_OPTS --disable-pthreads"
|
|
;;
|
|
esac
|
|
|
|
case "$CFG_CC" in
|
|
("ccache clang")
|
|
LLVM_CXX_32="ccache clang++ -Qunused-arguments"
|
|
LLVM_CC_32="ccache clang -Qunused-arguments"
|
|
|
|
LLVM_CXX_64="ccache clang++ -Qunused-arguments"
|
|
LLVM_CC_64="ccache clang -Qunused-arguments"
|
|
;;
|
|
("clang")
|
|
LLVM_CXX_32="clang++ -Qunused-arguments"
|
|
LLVM_CC_32="clang -Qunused-arguments"
|
|
|
|
LLVM_CXX_64="clang++ -Qunused-arguments"
|
|
LLVM_CC_64="clang -Qunused-arguments"
|
|
;;
|
|
("ccache gcc")
|
|
LLVM_CXX_32="ccache g++"
|
|
LLVM_CC_32="ccache gcc"
|
|
|
|
LLVM_CXX_64="ccache g++"
|
|
LLVM_CC_64="ccache gcc"
|
|
;;
|
|
("gcc")
|
|
LLVM_CXX_32="g++"
|
|
LLVM_CC_32="gcc"
|
|
|
|
LLVM_CXX_64="g++"
|
|
LLVM_CC_64="gcc"
|
|
;;
|
|
|
|
(*)
|
|
msg "inferring LLVM_CXX/CC from CXX/CC = $CXX/$CC"
|
|
LLVM_CXX_32="$CXX"
|
|
LLVM_CC_32="$CC"
|
|
|
|
LLVM_CXX_64="$CXX"
|
|
LLVM_CC_64="$CC"
|
|
;;
|
|
esac
|
|
|
|
case "$CFG_CPUTYPE" in
|
|
(x86*)
|
|
LLVM_CXX_32="$LLVM_CXX_32 -m32"
|
|
LLVM_CC_32="$LLVM_CC_32 -m32"
|
|
|
|
LLVM_CFLAGS_32="-m32"
|
|
LLVM_CXXFLAGS_32="-m32"
|
|
LLVM_LDFLAGS_32="-m32"
|
|
|
|
LLVM_CFLAGS_64=""
|
|
LLVM_CXXFLAGS_64=""
|
|
LLVM_LDFLAGS_64=""
|
|
|
|
LLVM_CXX_32="$LLVM_CXX_32 -m32"
|
|
LLVM_CC_32="$LLVM_CC_32 -m32"
|
|
;;
|
|
|
|
(*)
|
|
LLVM_CFLAGS_32=""
|
|
LLVM_CXXFLAGS_32=""
|
|
LLVM_LDFLAGS_32=""
|
|
|
|
LLVM_CFLAGS_64=""
|
|
LLVM_CXXFLAGS_64=""
|
|
LLVM_LDFLAGS_64=""
|
|
;;
|
|
esac
|
|
|
|
if echo $t | grep -q x86_64
|
|
then
|
|
LLVM_CXX=$LLVM_CXX_64
|
|
LLVM_CC=$LLVM_CC_64
|
|
LLVM_CFLAGS=$LLVM_CFLAGS_64
|
|
LLVM_CXXFLAGS=$LLVM_CXXFLAGS_64
|
|
LLVM_LDFLAGS=$LLVM_LDFLAGS_64
|
|
else
|
|
LLVM_CXX=$LLVM_CXX_32
|
|
LLVM_CC=$LLVM_CC_32
|
|
LLVM_CFLAGS=$LLVM_CFLAGS_32
|
|
LLVM_CXXFLAGS=$LLVM_CXXFLAGS_32
|
|
LLVM_LDFLAGS=$LLVM_LDFLAGS_32
|
|
fi
|
|
|
|
CXX=$LLVM_CXX
|
|
CC=$LLVM_CC
|
|
CFLAGS=$LLVM_CFLAGS
|
|
CXXFLAGS=$LLVM_CXXFLAGS
|
|
LDFLAGS=$LLVM_LDFLAGS
|
|
|
|
if [ -z "$CFG_DISABLE_LIBCPP" ] && [ -n "$CFG_USING_CLANG" ]; then
|
|
LLVM_OPTS="$LLVM_OPTS --enable-libcpp"
|
|
fi
|
|
|
|
LLVM_FLAGS="$LLVM_TARGETS $LLVM_OPTS $LLVM_BUILD \
|
|
$LLVM_HOST $LLVM_TARGET --with-python=$CFG_PYTHON"
|
|
|
|
msg "configuring LLVM with:"
|
|
msg "$LLVM_FLAGS"
|
|
|
|
export CXX
|
|
export CC
|
|
export CFLAGS
|
|
export CXXFLAGS
|
|
export LDFLAGS
|
|
|
|
cd $LLVM_BUILD_DIR
|
|
case $CFG_SRC_DIR in
|
|
/* | [a-z]:* | [A-Z]:*)
|
|
${CFG_LLVM_SRC_DIR}configure $LLVM_FLAGS
|
|
;;
|
|
*)
|
|
${CFG_BUILD_DIR}${CFG_LLVM_SRC_DIR}configure \
|
|
$LLVM_FLAGS
|
|
;;
|
|
esac
|
|
need_ok "LLVM configure failed"
|
|
|
|
cd $CFG_BUILD_DIR
|
|
fi
|
|
|
|
# Construct variables for LLVM build and install directories for
|
|
# each target. These will be named
|
|
# CFG_LLVM_BUILD_DIR_${target_triple} but all the hyphens in
|
|
# target_triple will be converted to underscore, because bash
|
|
# variables can't contain hyphens. The makefile will then have to
|
|
# convert back.
|
|
CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
|
|
CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)
|
|
eval ${CFG_LLVM_BUILD_DIR}="'$LLVM_BUILD_DIR'"
|
|
eval ${CFG_LLVM_INST_DIR}="'$LLVM_INST_DIR'"
|
|
done
|
|
|
|
|
|
step_msg "writing configuration"
|
|
|
|
putvar CFG_SRC_DIR
|
|
putvar CFG_BUILD_DIR
|
|
putvar CFG_OSTYPE
|
|
putvar CFG_CPUTYPE
|
|
putvar CFG_CONFIGURE_ARGS
|
|
putvar CFG_PREFIX
|
|
putvar CFG_HOST
|
|
putvar CFG_TARGET
|
|
putvar CFG_LIBDIR_RELATIVE
|
|
putvar CFG_DISABLE_MANAGE_SUBMODULES
|
|
putvar CFG_ANDROID_CROSS_PATH
|
|
putvar CFG_MANDIR
|
|
|
|
# Avoid spurious warnings from clang by feeding it original source on
|
|
# ccache-miss rather than preprocessed input.
|
|
if [ ! -z "$CFG_ENABLE_CCACHE" ] && [ ! -z "$CFG_USING_CLANG" ]
|
|
then
|
|
CFG_CCACHE_CPP2=1
|
|
putvar CFG_CCACHE_CPP2
|
|
fi
|
|
|
|
if [ ! -z "$CFG_ENABLE_CCACHE" ]
|
|
then
|
|
CFG_CCACHE_BASEDIR=${CFG_SRC_DIR}
|
|
putvar CFG_CCACHE_BASEDIR
|
|
fi
|
|
|
|
|
|
if [ ! -z $BAD_PANDOC ]
|
|
then
|
|
CFG_PANDOC=
|
|
putvar CFG_PANDOC
|
|
fi
|
|
|
|
putvar CFG_LLVM_SRC_DIR
|
|
|
|
for t in $CFG_HOST
|
|
do
|
|
CFG_LLVM_BUILD_DIR=$(echo CFG_LLVM_BUILD_DIR_${t} | tr - _)
|
|
CFG_LLVM_INST_DIR=$(echo CFG_LLVM_INST_DIR_${t} | tr - _)
|
|
putvar $CFG_LLVM_BUILD_DIR
|
|
putvar $CFG_LLVM_INST_DIR
|
|
done
|
|
|
|
msg
|
|
copy_if_changed ${CFG_SRC_DIR}Makefile.in ./Makefile
|
|
move_if_changed config.tmp config.mk
|
|
rm -f config.tmp
|
|
touch config.stamp
|
|
|
|
if [ -z "$CFG_ENABLE_DEBUG" ]; then
|
|
step_msg "configured in release mode. for development consider --enable-debug"
|
|
else
|
|
step_msg "complete"
|
|
fi
|
|
|
|
msg "run \`make help\`"
|
|
msg
|