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>
* config.guess (x86_64:Linux:*:*): Test for the 32-bit ABI. Don't assume that
__ILP32__ is a certain indicator for the x32 ABI; for GCC ≥ 9 it no longer is.
* doc/config.guess.1: Regenerate.
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.
config.guess guesses Solaris 11 to run on a 32-bit platform
despite Solaris 11 no longer supporting any 32-bit platform.
See the following code at lines 434 to 445:
| SUN_ARCH=i386
| # If there is a compiler, see if it is configured for 64-bit objects.
| # Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
| # This test works for both compilers.
| if test "$CC_FOR_BUILD" != no_compiler_found; then
| if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
| (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
| grep IS_64BIT_ARCH >/dev/null
| then
| SUN_ARCH=x86_64
| fi
| fi
If "cc" is installed, i.e. the Oracle Studio compiler, this one is
chosen for $CC_FOR_BUILD. This compiler, the gcc provided by Oracle
and also gcc bootstrapped from sources on that platform with a default
configuration will by default generate 32-bit binaries -- even on
a 64-bit platform. And __amd64 will not be defined for compilations
targeting a 32-bit platform. This is different from the corresponding
behaviour on GNU/Linux systems where the local platform is targeted by
default.
Thus, as long as you do not add "-m64" or if you have a custom-built
gcc which defaults to 64 bit, you will get 32-bit binaries on Solaris
despite living on a 64-bit platform.
* config.guess (i86pc:SunOS:5.*:* || i86xen:SunOS:5.*:*): Adapt the
test by adding the "-m64" flag. This will work properly for Solaris
10 as well (the last Solaris release that supported x86 32-bit
platforms).
* doc/config.guess.1: Regenerate.
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
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>
These tools have served their purposes and need not be kept outside of
the repository history any longer. This patch as a diff also collects
the contents of the various tools in one convenient place.
* patch-1.gawk: Remove.
* patch-3.gawk: Likewise.
* patch-6.gawk: Likewise.
The tool could not handle command substitutions that span lines, but
fortunately there were only two such substitutions in the script.
The test for which universe is active on Pyramid is rewritten into a
case block because it was the only use of a command substitution as an
argument to the test command, which would require quoting.
* config.guess: Rewrite "if" for Pyramid systems to "case".
The previous replacement of backticks with POSIX command substitutions
was ill-considered and illogical: this script recognizes many archaic
machine types that probably never had POSIX shells, therefore it needs
to be able to run successfully under pre-POSIX shells.
This patch was generated using the included GNU Awk program.
* config.guess: Revert POSIX command substitutions to classic form.
* patch-6.gawk: Store the tool that produced the automated patch.
This patch provides the special handling for the GNU system. As these
were two small and unique edits, they were not included in the scripts.
This patch also cleans up other minor issues that must be addressed
before reverting to classic command substitutions and updates
"shellcheck" directives to account for changes in this script and the
change in "shellcheck" towards reporting individual portability issues.
This patch was generated using the following command:
sed -i config.guess \
-e '/="[^"]\+"\(-\|$\)/s/="\([^"([:space:])]\+\)"/=\1/' \
-e '/="[^"]\+"[[:alnum:]]/s/="\$\([^([:space:])]\+\)"/=${\1}/' \
-e \
'/\$(echo[^|]\+|/s/\([^[:space:]]\)[[:space:]]*|[[:space:]]*sed/\1 | sed/g'
* config.guess: Remove unneeded quotes in other variable assignments,
standardize spacing for "echo ... | sed" substitutions.
This is further cleanup and simplifies some constructs that can confuse
Emacs' syntax highlighting while generally reducing required quoting.
This patch was generated using the included GNU Awk program.
* config.guess: Remove unneeded variable quotes and factor out command
substitutions when setting GUESS.
* patch-3.gawk: Store the tool that produced the automated patch.
This will allow quoting to be significantly simplified in another
pass through the file.
This patch was generated using the included GNU Awk program.
* config.guess: Use GUESS variable to hold results of uname analysis.
* patch-1.gawk: Store the tool that produced the automated patch.
This will allow quoting to be significantly simplified in another
pass through the file.
* config.guess: Introduce GUESS variable to hold results of uname analysis.
While, according to Plan 9 documentation, the environment variable
$cputype is set to the name of the kernel's CPU's architecture,
shellcheck warns that cputype is referenced but not assigned.
Be on the safe side and do not use cputype if it is not defined
or empty.
* config.guess (*:Plan9:*:*): Fix shellcheck warning SC2154.
According to the GNU Autoconf Portable Shell Programming manual,
the Bourne shell does not systematically split variables and back-quoted
expressions, in particular on the right-hand side of assignments and in
the argument of 'case'.
The change is made automatically using the following command:
$ sed -E -i 's/(\<case )"(\$[^"]+)"( in\>)/\1\2\3/' config.guess
* config.guess: Simplify case commands by removing quotes around the
argument.
Suggested-by: Jacob Bachmeyer <jcb@gnu.org>
Commit 29865ea8a5622cdd80b7a69a0afa78004b4cd311 introduced an exit trap
reset before exiting to avoid a spurious non-zero exit status on
alphaev67-dec-osf5.1. Simplify that code a bit by moving the exit trap
reset around.
* config.guess (alpha:OSF1:*:*): Reset exit trap earlier.
* doc/config.guess.1: Regenerate.
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>
