Commit Graph

17 Commits

Author SHA1 Message Date
Silvan Mosberger
667d42c00d treewide: format all inactive Nix files
After final improvements to the official formatter implementation,
this commit now performs the first treewide reformat of Nix files using it.
This is part of the implementation of RFC 166.

Only "inactive" files are reformatted, meaning only files that
aren't being touched by any PR with activity in the past 2 months.
This is to avoid conflicts for PRs that might soon be merged.
Later we can do a full treewide reformat to get the rest,
which should not cause as many conflicts.

A CI check has already been running for some time to ensure that new and
already-formatted files are formatted, so the files being reformatted here
should also stay formatted.

This commit was automatically created and can be verified using

    nix-build a08b3a4d19.tar.gz \
      --argstr baseRev 57b193d8dd
    result/bin/apply-formatting $NIXPKGS_PATH
2024-12-10 20:27:17 +01:00
Alyssa Ross
0a71bbb64a gcc: fix building with gcc.cpu on some platforms
This fixes, for example, cross compiling to
{ system = "riscv64-linux"; gcc.cpu = "sifive-u74"; }.
2024-06-15 08:03:18 +02:00
Adam Joseph
e1842769ae Merge pull request #228296 from amjoseph-nixpkgs/pr/gcc/libsanitizer/mips64n32
gcc: disable libsanitizer on mips64n32
2023-05-05 06:54:41 +00:00
Elias Naur
c10a195ab1 gcc: tighten platform flags special-case for aarch64-darwin
The 4aa95e3312 commit added support for
aarch64-darwin but also ignored platform flags if the build platform
is aarch64-darwin. This leads to confusing errors such as
`pkgsCross.raspberryPi` packages compiled with soft-float even though
the platform supports hard-float (and is built as such on other
platforms).

The correct way to ignore platform flags is to check `targetPlatform`,
not the build platform. This change fixes that.

While we're here, tigthen the special-case to cover only the problematic
flags: `-with-cpu` and `-with-arch`.
2023-04-27 15:57:17 -06:00
Adam Joseph
c289fc341b gcc: disable libsanitizer on mips64n32
On MIPS, libsanitizer appears to have very detailed knowledge of the
Linux system call ABI manually encoded, by hand, into the library.
This encoding covers the o32 and 64 abis, but does not cover n32.
Adding support for n32 would be a major undertaking.

Without adding this encoding, builds of gcc will fail with errors
including (but not limited to) the following:

```
In file included from ../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_platform_limits_linux.cpp:21:
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_platform_limits_linux.cpp:75:38: error: static assertion failed
   75 | COMPILER_CHECK(struct_kernel_stat_sz == sizeof(struct stat));
      |                ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_internal_defs.h:348:44: note: in definition of macro 'COMPILER_CHECK'
  348 | #define COMPILER_CHECK(pred) static_assert(pred, "")
      |                                            ^~~~
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_platform_limits_linux.cpp:75:38: note: the comparison reduces to '(144 == 160)'
   75 | COMPILER_CHECK(struct_kernel_stat_sz == sizeof(struct stat));
      |                ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_internal_defs.h:348:44: note: in definition of macro 'COMPILER_CHECK'
  348 | #define COMPILER_CHECK(pred) static_assert(pred, "")
      |                                            ^~~~
...
In file included from ../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_linux.cpp:184:
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_linux.cpp: In function '__sanitizer::uptr __sanitizer::internal_mmap(void*, uptr, int, int, int, u64)':
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_syscall_generic.inc:19:24: error: '__NR_mmap2' was not declared in this scope
   19 | # define SYSCALL(name) __NR_ ## name
      |                        ^~~~~
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_linux.cpp:198:27: note: in expansion of macro 'SYSCALL'
  198 |   return internal_syscall(SYSCALL(mmap2), addr, length, prot, flags, fd,
      |                           ^~~~~~~
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_linux.cpp: In function 'void __sanitizer::stat64_to_stat(stat64*, stat*)':
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_linux.cpp:279:23: error: 'struct stat64' has no member named 'st_atim'; did you mean 'st_atime'?
  279 |   out->st_atime = in->st_atime;
      |                       ^~~~~~~~
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_linux.cpp:280:23: error: 'struct stat64' has no member named 'st_mtim'; did you mean 'st_mtime'?
  280 |   out->st_mtime = in->st_mtime;
      |                       ^~~~~~~~
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_linux.cpp:281:23: error: 'struct stat64' has no member named 'st_ctim'; did you mean 'st_ctime'?
  281 |   out->st_ctime = in->st_ctime;
      |                       ^~~~~~~~
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_linux.cpp: In function '__sanitizer::uptr __sanitizer::internal_stat(const char*, void*)':
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_syscall_generic.inc:19:24: error: '__NR_stat64' was not declared in this scope
   19 | # define SYSCALL(name) __NR_ ## name
      |                        ^~~~~
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_linux.cpp:353:30: note: in expansion of macro 'SYSCALL'
  353 |   int res = internal_syscall(SYSCALL(stat64), path, &buf64);
      |                              ^~~~~~~
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_linux.cpp: In function '__sanitizer::uptr __sanitizer::internal_lstat(const char*, void*)':
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_syscall_generic.inc:19:24: error: '__NR_lstat64' was not declared in this scope
   19 | # define SYSCALL(name) __NR_ ## name
      |                        ^~~~~
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_linux.cpp:378:30: note: in expansion of macro 'SYSCALL'
  378 |   int res = internal_syscall(SYSCALL(lstat64), path, &buf64);
      |                              ^~~~~~~
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_linux.cpp: In function '__sanitizer::uptr __sanitizer::internal_fstat(fd_t, void*)':
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_syscall_generic.inc:19:24: error: '__NR_fstat64' was not declared in this scope
   19 | # define SYSCALL(name) __NR_ ## name
      |                        ^~~~~
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_linux.cpp:397:30: note: in expansion of macro 'SYSCALL'
  397 |   int res = internal_syscall(SYSCALL(fstat64), fd, &buf64);
      |                              ^~~~~~~
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_linux.cpp: At global scope:
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_linux.cpp:303:13: warning: 'void __sanitizer::kernel_stat_to_stat(kernel_stat*, stat*)' defined but not used [8;;https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html#index-Wunused-function-Wunused-function8;;]
  303 | static void kernel_stat_to_stat(struct kernel_stat *in, struct stat *out) {
      |             ^~~~~~~~~~~~~~~~~~~
mv -f .deps/sanitizer_mutex.Tpo .deps/sanitizer_mutex.Plo
make[4]: *** [Makefile:617: sanitizer_linux.lo] Error 1
mv -f .deps/sancov_flags.Tpo .deps/sancov_flags.Plo
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_posix.cpp: In function '__sanitizer::fd_t __sanitizer::OpenFile(const char*, FileAccessMode, error_t*)':
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_posix.cpp:162:27: warning: 'flags' may be used uninitialized [8;;https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html#index-Wmaybe-uninitialized-Wmaybe-uninitialized8;;]
  162 |   fd_t res = internal_open(filename, flags, 0660);
      |              ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
../../../../gcc-12.2.0/libsanitizer/sanitizer_common/sanitizer_posix.cpp:156:7: note: 'flags' was declared here
  156 |   int flags;
      |       ^~~~~
```
2023-04-26 21:50:15 -07:00
Adam Joseph
deda18bae8 gcc: only pass --with-long-double-format if gcc allows it 2023-04-05 15:54:38 -07:00
Adam Joseph
29b395309f gcc: make --with-long-double-format configurable by targetPlatform.gcc 2023-04-05 15:54:37 -07:00
Adam Joseph
40f7300227 gcc: if isPower64 && !isMusl use --with-long-double-format=ieee
Use IEEE-standard floating point on `powerpc64le` instead of
IBM-proprietary formats.  The GCC wiki has more details on the history
here:

  https://gcc.gnu.org/wiki/Ieee128PowerPC

Nixpkgs' stdenv has no legacy `powerpc64le` installs to deal with
(stdenv did not bootstrap on powerpc64le until very recenty), so it's
much easier decision for us.

Red Hat (i.e. IBM) has tried to do this in each of the last *six*
releases:

  https://fedoraproject.org/wiki/Changes/PPC64LE_Float128_Transition

they and finally shipped it in May with Fedora 36:

  https://bugzilla.redhat.com/show_bug.cgi?id=1649936

Apparently glibc 2.35 fixes the last blocker.

Co-authored-by: Sandro <sandro.jaeckel@gmail.com>
2023-04-05 15:52:43 -07:00
Ryan Burns
5530a3adbe gcc: fix powerpc64-linux
Long-double-128 is a hardware feature independent of endianness
2021-01-30 12:34:30 -08:00
John Ericson
9c213398b3 lib: Clean up how linux and gcc config is specified
Second attempt of 8929989614589ee3acd070a6409b2b9700c92d65; see that
commit for details.

This reverts commit 0bc275e634.
2021-01-23 10:01:28 -05:00
Jonathan Ringer
0bc275e634 Revert "lib: Clean up how linux and gcc config is specified"
This is a stdenv-rebuild, and should not be merged
into master

This reverts commit 8929989614.
2021-01-22 14:07:06 -08:00
John Ericson
8929989614 lib: Clean up how linux and gcc config is specified
The `platform` field is pointless nesting: it's just stuff that happens
to be defined together, and that should be an implementation detail.

This instead makes `linux-kernel` and `gcc` top level fields in platform
configs. They join `rustc` there [all are optional], which was put there
and not in `platform` in anticipation of a change like this.

`linux-kernel.arch` in particular also becomes `linuxArch`, to match the
other `*Arch`es.

The next step after is this to combine the *specific* machines from
`lib.systems.platforms` with `lib.systems.examples`, keeping just the
"multiplatform" ones for defaulting.
2021-01-21 22:44:09 -05:00
volth
5d87bc2650 fix bootstrap when platform.gcc.arch=="skylake" 2019-04-21 16:37:49 +00:00
CrystalGamma
72d161f548 [RFC] ppc64le enablement (#45340)
* ppc64le enablement

* gcc, glibc: properly handle __float128

* lib/systems, stdenv: syntax cleanup

* gcc7: remove ugly hack

* gcc: add/update __float128 flags

* stdenv: add another pair of quotes for consistency

* gcc: move __float128 flag for ppc64le-glibc into common/platform-flags.nix
2018-08-21 15:31:34 -04:00
John Ericson
f2004e6287 lib: Fix float handling for Aarch32
Forgot to adjust default so abi with explicit float attr would be used.
2018-05-12 15:18:31 -04:00
John Ericson
1fe81a4bcd lib: Clean up float/fpu options
ARM ABIs now have a float field. This is used as a fallback to lessen
our use of `platform.gcc.float`. I didn't know what the MIPs convention
is so I kept using `platform.gcc.float` in that case.
2018-05-10 18:02:00 -04:00
John Ericson
c9f6a82b61 gcc: Factor out "platform flags" 2018-05-10 18:00:57 -04:00