These are distinct from "ios". They are also technically Darwin, so while
something like "aarch64-apple-darwin" could be used when targeting these,
on Apple-silicon based systems there could be cases where `--host` and
`--build` have the same value, and a ./configure script may determine that
we are not cross building, causing it to try to execute test programs for
the target OS that will not run on macOS.
These are functionally equivalent to iOS, and targets with "-tvos" and
"-watchos" are already used by clang.
* config.sub (tvos*, watchos*): Recognize.
* testsuite/config-sub.data (arm64-apple-tvos, arm64-apple-tvos10.0.0,
arm64-apple-watchos, arm64-apple-watchos5.0): New tests.
* doc/config.sub.1: Regenerate.
These are not real OSes, they are object file formats. There is a
longstanding tradition of using them for embedded/freestanding
programming, so it makes sense to parse them with `kernel=none`.
(I have a WIP future patch that systematizes parsing these non-OSes a
bit more. That also opens the door to parsing a 5th component as LLVM
can do.)
This change unblocks an issue we've been having with Nixpkgs (see
https://github.com/NixOS/nixpkgs/issues/165836 for the longer version).
* config.sub (none-coff*, none-elf*): Recognize.
* testsuite/config-sub.data (arm-unknown-none-coff,
arm-unknown-none-elf, riscv64-company-none-elf): New tests.
* doc/config.sub.1: Regenerate.
In older times, MinGW (GCC toolchain with modified windows headers) was
the only free software toolchain for Windows. But now, LLVM has support
both for MinGW ABI and Microsoft's own. The distinction matters for C++
more than C.
LLVM[1], Rust[2], and other projects have taken to differentiating these
two as `...windows-gnu` vs `...windows-msvc`. I think that makes a lot
of sense, as it correctly identifiers both their commonalities and their
differences.
A lot of MinGW-supporting software, most notably GCC itself, will
presumably continue to use configs like x86_64-pc-mingw32 and
i686-pc-mingw32. That's fine; this patch doesn't normalize them away
(like LLVM does) or remove them! If and when that software wants to
support the MSVC ABI without requiring MSVC itself, they can switch to
these newer configurations.
[1]: a18266473b/llvm/unittests/TargetParser/TripleTest.cpp (L1907-L1951)
[2]: 36fb58e433/compiler/rustc_target/src/spec/mod.rs (L1255-L1271)
In 2012 the GNU Coding Standards changed to recommend quoting
'like this' or "like this" instead of `like this'.
Alter diagnostics and comments accordingly.
Use a more-consistent quoting style in config.sub diagnostics,
preferring 'like this' to "like this" as the former is more
resistant to shell metacharacters.
Note: currently, there's no detection method for linux-mlibc in
config.guess, since there's no decided way to detect mlibc.
Signed-off-by: Arsen Arsenović <arsen@aarsen.me>
* config.sub (linux-mlibc*): Recognize.
* testsuite/config-sub.data (aarch64-linux-mlibc, riscv-linux-mlibc,
x86_64-linux-mlibc): New tests.
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
See: https://www.gnu.org/licenses/gpl-3.0.html#howto
Update license headers automatically using the following script:
$ git grep -l 'Foundation; either version 3' \
| xargs sed -i '/Foundation; either version 3/ s/n; e/n, e/'
* config.guess: Adjust via the above command.
(timestamp): Update.
* config.sub: Likewise.
* doc/config.guess.1: Regenerate.
* doc/config.sub.1: Likewise.
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
ALT uses armh as an alias for armv7l-alt-linux-gnueabihf since 2012.
* config.sub (armh-unknown|armh-alt): Set cpu, vendor, and basic_os.
(timestamp): Update.
* doc/config.sub.1: Regenerate.
* testsuite/config-sub.data (armh, armh-alt-linux-gnueabihf): New tests.
When combining variable assignments with a shell command, some older
shells (notably heirloom-sh and presumably also Solaris 10 /bin/sh)
have a bug which causes the assignment to alter the current execution
environment whenever the command is a shell built-in. For example:
% dash -c 'x=good; x=bad echo >/dev/null; echo $x'
good
% jsh -c 'x=good; x=bad echo >/dev/null; echo $x'
bad
The config.sub script contains a few commands of the form:
IFS=- read ...
which triggers this bug, causing the IFS assignment to persist for the
remainder of the script. This can cause misbehaviour in certain cases,
for example:
% jsh config.sub i386-linux-gnu
config.sub: test: unknown operator gnu
% jsh config.sub i386-gnu/linux
sed: can't read s|gnu/linux|gnu|: No such file or directory
Invalid configuration `i386-gnu/linux': OS `' not recognized
* config.sub: Save and restore IFS explicitly to avoid shell bugs.
* doc/config.sub.1: Regenerate.
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
This is in line with the recent config.guess change in commit
12fcf67c9108f4c4b581eaa302088782f0ee40ea
* config.sub (shellcheck disable): Add SC2006,SC2268.
Suggested-by: Jacob Bachmeyer <jcb@gnu.org>
Signed-off-by: Ozkan Sezer <sezero@users.sourceforge.net>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Some cases quote the argument to echo and some do not. At runtime
it probably does not matter because the substituted values will never
contain whitespace, but quoting them all would make shellcheck more
useful.
* config.sub: Consistently quote the argument of echo.
* doc/config.sub.1: Regenerate.
Suggested-by: Jacob Bachmeyer <jcb@gnu.org>
Signed-off-by: Ozkan Sezer <sezero@users.sourceforge.net>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
This is in line with the recent config.guess change in commit
d70c4fa934de164178054c3a60aaa0024ed07c91.
The patch was generated using patch-6.gawk script introduced in that
commit.
* config.sub: Revert POSIX command substitutions to classic form.
Signed-off-by: Ozkan Sezer <sezero@users.sourceforge.net>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Complement binutils commit ae52f4830604 ("Add MIPS r3 and r5 support.")
and recognize MIPS CPU patterns for the R3 and R5 ISA levels, used by
GAS to set defaults.
* config.sub (mipsisa32r3, mipsisa32r3el, mipsisa32r5, mipsisa32r5el,
mipsisa64r3, mipsisa64r3el, mipsisa64r5, mipsisa64r5el): Recognize.
* doc/config.sub.1: Regenerate.
* testsuite/config-sub.data: Add test cases.
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Commit 5e531d391852 broke powerpc-eabivle:
$ ./config.sub powerpc-eabivle
Invalid configuration `powerpc-eabivle': OS `eabivle' not recognized
Also powerpc-eabisim and probably some arm configurations.
* config.sub: Accept OS of eabi* and gnueabi*.
* testsuite/config-sub.data: Add powerpc-eabisim and powerpc-eabivle.
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Recently RISC-V community got patches big-endian support for binutils,
and we'd like to accept that, however before accepting that I think it
would be better to upstream config.sub and config.guess change here :)
It's my check result on Ubuntu 18.04:
$ make check
cd testsuite && bash config-guess.sh && rm uname
PASS: config.guess checks (131 tests)
cd testsuite && bash config-sub.sh
PASS: config.sub checks (830 tests)
PASS: config.sub idempotency checks (767 tests)
PASS: config.sub canonicalise each config.guess testcase (131 tests)
* config.guess (riscv32be:Linux:*:*, riscv64be:Linux:*:*): Recognize.
* config.sub (riscv32be, riscv64be): Likewise.
* doc/config.guess.1: Regenerate.
* doc/config.sub.1: Likewise.
* testsuite/config-guess.data: Add test cases for riscv32be, and riscv64be.
* testsuite/config-sub.data (riscv32be, riscv64be): Add test cases.
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Apparently, this is needed to correctly detect musl libc in different
versions of Alpine Linux.
According to
https://lists.gnu.org/archive/html/config-patches/2020-09/msg00002.html,
the ldd based check does not work for some old versions of the Alpine Linux,
and, according to
https://lists.gnu.org/archive/html/config-patches/2020-11/msg00002.html,
the compiler may not be available in a fresh Alpine container.
The ldd based check is essentially the same as the check that was
introduced by commit 3d00f60242f1726fc6eaa38e09435a969ee7ebe5, it is
performed iff the compiler based check could not give a definitive
answer.
Reported-by: Cheng XU <xucheng@me.com>
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
I previously refactored config.sub to parse 'basic_machine' into
separate 'cpu' and 'vendor' variables. This is a kindred refactor
where 'basic_os' (a rename of 'os' when used early on) is now parsed
into 'kernel' and 'os'.
Like the previous refactoring, this does make things a bit longer. I
think the change makes the code easier to understand and more robust,
so it is worth the cost of a longer script.
Signed-off-by: Ben Elliston <bje@gnu.org>
overrides.
Previously, 'ibm' was forced, which caused problems when someone
wanted to use 'busybox' as a vendor and cross-compile with a slightly
different toolchain. The fix changed behaviour such that without any
vendor, it would use to 'unknown' rather than 'ibm' as before.
This patch aims to compromise between the old and new behaviour by
making 'ibm' a default for those CPUs when no vendor is specified, but
if the user explicitly provides a vendor that is used instead. This
sort of "vendor defaulting" has plenty of precedent in config.sub, so
it seemed like a good approach.
Signed-off-by: Ben Elliston <bje@gnu.org>
