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Commit Graph

16 Commits

Author SHA1 Message Date
Motiejus Jakštys
9dbba15064 partially revert c023c217a5
The `toolchain/private/cc_toolchains.bzl` changes were added by accident.
2022-09-22 13:32:17 +03:00
Motiejus Jakštys
c023c217a5 contrib/own_zig.md: clarify zig-bootstrap instructions 2022-09-22 11:39:39 +03:00
Motiejus Jakštys
2f0ae4affa target_musl: remove linkopts
These flags were added in this commit:

    commit 58a04fbfec
    Author: Motiejus Jakštys <motiejus@jakstys.lt>
    Date:   Tue Jun 15 09:10:15 2021 +0300

        bump zig

I am still quite puzzled on why I did this and in such a commit: it
bumps the zig version and changes the linker flag.

Working alone, experimentation time? Probably something like this.
Anyhow, this is a good example of the real value of code reviews.
2022-09-02 13:21:39 +03:00
Motiejus Jakštys
23d9b9d39e [macos] remove libc/include/{}-macos.{}-gnu
This seems to be absent in the Zig SDK for macos targets.

Reported-by: Mike Eastham <meastham@tecton.ai>
2022-08-23 18:12:02 +03:00
Luis Holanda
f13e59a30a Add missing include path for MacOS platforms
While integrating the project into our Bazel workspace, we had some
problems while building protoc in an Intel MacBook.

From my testing, the issue seems to be caused by missing include path
in the toolchain configuration to the `-none` variant of the headers.
More details below.

The issue can be reproduced directly inside `bazel-zig-cc` by including
the protobuf workspace as a dependency:

+http_archive(
+    name = "com_google_protobuf",
+    sha256 = "2d9084d3dd13b86ca2e811d2331f780eb86f6d7cb02b405426e3c80dcbfabf25",
+    strip_prefix = "protobuf-3.21.1",
+    url = "https://github.com/protocolbuffers/protobuf/archive/v3.21.1.zip",
+)
+
+load("@com_google_protobuf//:protobuf_deps.bzl", "protobuf_deps")
+
+protobuf_deps()

And then executing:

bazel build --platforms @zig_sdk//platform:darwin_amd64 @com_google_protobuf//:protoc

The command fails with the same error both in native compilation and
cross-compiling from Linux. The error:

ERROR: <output_base>/external/zlib/BUILD.bazel:37:11: Compiling compress.c failed: undeclared inclusion(s) in rule '@zlib//:zlib':
this rule is missing dependency declarations for the following files included by 'compress.c':
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/sys/cdefs.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/sys/_symbol_aliasing.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/machine/limits.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/i386/limits.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/i386/_limits.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/sys/syslimits.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/machine/types.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/i386/types.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/i386/_types.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/sys/_types/_int8_t.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/sys/_types/_uintptr_t.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/machine/_types.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/sys/_pthread/_pthread_types.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/machine/endian.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/i386/endian.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/libkern/_OSByteOrder.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/libkern/i386/_OSByteOrder.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/sys/_types/_fd_def.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/Availability.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/AvailabilityInternal.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/sys/_pthread/_pthread_attr_t.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/sys/_pthread/_pthread_cond_t.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/sys/_pthread/_pthread_condattr_t.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/sys/_pthread/_pthread_rwlock_t.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/sys/_pthread/_pthread_rwlockattr_t.h'
  '<output_base>/external/zig_sdk/lib/libc/include/x86_64-macos.10-none/sys/_pthread/_pthread_t.h'
Target @com_google_protobuf//:protoc failed to build

(<output_base> replaced manually to keep the description sane)

Note that the specific rule included in the error message will vary due
to parallelism, but the error is always the same and the missing paths
always have the same prefix (up to `x86_64-macos.10-none`).

After applying the patch, we confirmed that both native and cross compilations
works as expected and can properly build protoc.

Signed-off-by: Luis Holanda <luiscmholanda@gmail.com>
2022-08-23 18:11:54 +03:00
b7da83e13e upgrade zig sdk
Also fix darwin zigtarget to none; see 5b813f1a2acdc1668e39008b02a234f3da724552 of zig
2022-06-28 12:47:23 +03:00
91ef17196b windows: add dynamic_library_linkopts
The patchset was created before
921fda9260, which added an option to
zig_cc_toolchain_config, causing a "soft merge conflict" after merging.
2022-06-06 10:30:39 +03:00
Fabian Hahn
72475ee012 added support for Windows targets 2022-06-02 05:27:22 +03:00
Fabian Hahn
4a6eef7945 added Windows host support 2022-06-02 05:27:22 +03:00
Jeremy Volkman
a0511ca5ee Pass "-Wl,-undefined=dynamic_lookup" for dynamic libraries on darwin.
This linker flag causes undefined symbols to be ignored, which is the
default behavior on linux but not macos. This is required when building
shared libraries to use as e.g. Python modules. This also matches what
Bazel's built-in macos cc toolchain does.
2022-06-01 11:49:13 +03:00
Jeremy Volkman
921fda9260 Adds dynamic_library_linkopts to zig_cc_toolchain_config
If specified, the flags in dynamic_library_linkopts are included in
cpp_link_dynamic_library and cpp_link_nodeps_dynamic_library actions.
2022-06-01 11:49:13 +03:00
Motiejus Jakštys
efca6e6428 remove support for glibc autodetection; this is a hermetic toolchain 2022-04-18 11:45:09 +03:00
Motiejus Jakštys
0c02a827ae README prose, the way I understand it 2022-04-18 11:42:13 +03:00
laurynasl
4d65b80903 Add libc constraint and libc aware toolchains
- Also get rid of @bazel_skylib dependency
2022-04-14 14:29:06 +00:00
laurynasl
64be98b830 Hide toolchain internals 2022-04-07 11:23:40 +00:00
laurynasl
eedfc3312e Move toolchain definitions to toolchains/ 2022-04-07 12:43:34 +03:00