2018-11-30 06:56:40 +08:00
|
|
|
#!/usr/bin/env python
|
2018-12-03 06:25:25 +08:00
|
|
|
"""Emulates the bits of CMake's configure_file() function needed in LLVM.
|
|
|
|
|
|
|
|
The CMake build uses configure_file() for several things. This emulates that
|
2018-12-07 01:42:35 +08:00
|
|
|
function for the GN build. In the GN build, this runs at build time instead
|
2018-12-03 06:25:25 +08:00
|
|
|
of at generator time.
|
[gn build] Create abi-breaking.h, config.h, llvm-config.h, and add a build file for llvm/lib/Support.
The comments at the top of
llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn and
llvm/utils/gn/build/write_cmake_config.py should explain the main bits
happening in this patch. The main parts here are that these headers are
generated at build time, not gn time, and that currently they don't do any
actual feature checks but just hardcode most things based on the current OS,
which seems to work well enough. If this stops being enough, the feature checks
should each be their own action writing the result to somewhere, and the config
write step should depend on those checks (so that they can run in parallel and
as part of the build) -- utils/llvm/gn/README.rst already has some more words
on that in "Philosophy".
(write_cmake_config.py is also going to be used to write clang's
clang/include/clang/Config/config.h)
This also adds a few files for linking to system libraries in a consistent way
if needed in llvm/utils/gn/build/libs (and moves pthread to that model).0
I'm also adding llvm/utils/gn/secondary/llvm/lib/Target/targets.gni in this
patch because $native_arch is needed for writing llvm-config.h -- the rest of
it will be used later, when the build files for llvm/lib/Target get added. That
file describes how to select which archs to build.
As a demo, also add a build file for llvm-undname and make it the default build
target (it depends on everything that can currently be built).
Differential Revision: https://reviews.llvm.org/D54678
llvm-svn: 347636
2018-11-27 13:19:17 +08:00
|
|
|
|
|
|
|
Takes a list of KEY=VALUE pairs (where VALUE can be empty).
|
|
|
|
|
2018-12-07 01:42:35 +08:00
|
|
|
The sequence `\` `n` in each VALUE is replaced by a newline character.
|
2018-12-03 06:25:25 +08:00
|
|
|
|
2018-12-07 01:42:35 +08:00
|
|
|
On each line, replaces '${KEY}' or '@KEY@' with VALUE.
|
|
|
|
|
|
|
|
Then, handles these special cases (note that FOO= sets the value of FOO to the
|
|
|
|
empty string, which is falsy, but FOO=0 sets it to '0' which is truthy):
|
[gn build] Create abi-breaking.h, config.h, llvm-config.h, and add a build file for llvm/lib/Support.
The comments at the top of
llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn and
llvm/utils/gn/build/write_cmake_config.py should explain the main bits
happening in this patch. The main parts here are that these headers are
generated at build time, not gn time, and that currently they don't do any
actual feature checks but just hardcode most things based on the current OS,
which seems to work well enough. If this stops being enough, the feature checks
should each be their own action writing the result to somewhere, and the config
write step should depend on those checks (so that they can run in parallel and
as part of the build) -- utils/llvm/gn/README.rst already has some more words
on that in "Philosophy".
(write_cmake_config.py is also going to be used to write clang's
clang/include/clang/Config/config.h)
This also adds a few files for linking to system libraries in a consistent way
if needed in llvm/utils/gn/build/libs (and moves pthread to that model).0
I'm also adding llvm/utils/gn/secondary/llvm/lib/Target/targets.gni in this
patch because $native_arch is needed for writing llvm-config.h -- the rest of
it will be used later, when the build files for llvm/lib/Target get added. That
file describes how to select which archs to build.
As a demo, also add a build file for llvm-undname and make it the default build
target (it depends on everything that can currently be built).
Differential Revision: https://reviews.llvm.org/D54678
llvm-svn: 347636
2018-11-27 13:19:17 +08:00
|
|
|
|
|
|
|
1.) #cmakedefine01 FOO
|
|
|
|
Checks if key FOO is set to a truthy value, and depending on that prints
|
|
|
|
one of the following two lines:
|
|
|
|
|
|
|
|
#define FOO 1
|
|
|
|
#define FOO 0
|
|
|
|
|
2018-12-03 06:25:25 +08:00
|
|
|
2.) #cmakedefine FOO [...]
|
[gn build] Create abi-breaking.h, config.h, llvm-config.h, and add a build file for llvm/lib/Support.
The comments at the top of
llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn and
llvm/utils/gn/build/write_cmake_config.py should explain the main bits
happening in this patch. The main parts here are that these headers are
generated at build time, not gn time, and that currently they don't do any
actual feature checks but just hardcode most things based on the current OS,
which seems to work well enough. If this stops being enough, the feature checks
should each be their own action writing the result to somewhere, and the config
write step should depend on those checks (so that they can run in parallel and
as part of the build) -- utils/llvm/gn/README.rst already has some more words
on that in "Philosophy".
(write_cmake_config.py is also going to be used to write clang's
clang/include/clang/Config/config.h)
This also adds a few files for linking to system libraries in a consistent way
if needed in llvm/utils/gn/build/libs (and moves pthread to that model).0
I'm also adding llvm/utils/gn/secondary/llvm/lib/Target/targets.gni in this
patch because $native_arch is needed for writing llvm-config.h -- the rest of
it will be used later, when the build files for llvm/lib/Target get added. That
file describes how to select which archs to build.
As a demo, also add a build file for llvm-undname and make it the default build
target (it depends on everything that can currently be built).
Differential Revision: https://reviews.llvm.org/D54678
llvm-svn: 347636
2018-11-27 13:19:17 +08:00
|
|
|
Checks if key FOO is set to a truthy in value, and depending on that prints
|
|
|
|
one of the following two lines:
|
|
|
|
|
2018-12-03 06:25:25 +08:00
|
|
|
#define FOO [...]
|
[gn build] Create abi-breaking.h, config.h, llvm-config.h, and add a build file for llvm/lib/Support.
The comments at the top of
llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn and
llvm/utils/gn/build/write_cmake_config.py should explain the main bits
happening in this patch. The main parts here are that these headers are
generated at build time, not gn time, and that currently they don't do any
actual feature checks but just hardcode most things based on the current OS,
which seems to work well enough. If this stops being enough, the feature checks
should each be their own action writing the result to somewhere, and the config
write step should depend on those checks (so that they can run in parallel and
as part of the build) -- utils/llvm/gn/README.rst already has some more words
on that in "Philosophy".
(write_cmake_config.py is also going to be used to write clang's
clang/include/clang/Config/config.h)
This also adds a few files for linking to system libraries in a consistent way
if needed in llvm/utils/gn/build/libs (and moves pthread to that model).0
I'm also adding llvm/utils/gn/secondary/llvm/lib/Target/targets.gni in this
patch because $native_arch is needed for writing llvm-config.h -- the rest of
it will be used later, when the build files for llvm/lib/Target get added. That
file describes how to select which archs to build.
As a demo, also add a build file for llvm-undname and make it the default build
target (it depends on everything that can currently be built).
Differential Revision: https://reviews.llvm.org/D54678
llvm-svn: 347636
2018-11-27 13:19:17 +08:00
|
|
|
/* #undef FOO */
|
|
|
|
|
|
|
|
Fails if any of the KEY=VALUE arguments aren't needed for processing the
|
2018-12-07 01:42:35 +08:00
|
|
|
input file, or if the input file references keys that weren't passed in.
|
[gn build] Create abi-breaking.h, config.h, llvm-config.h, and add a build file for llvm/lib/Support.
The comments at the top of
llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn and
llvm/utils/gn/build/write_cmake_config.py should explain the main bits
happening in this patch. The main parts here are that these headers are
generated at build time, not gn time, and that currently they don't do any
actual feature checks but just hardcode most things based on the current OS,
which seems to work well enough. If this stops being enough, the feature checks
should each be their own action writing the result to somewhere, and the config
write step should depend on those checks (so that they can run in parallel and
as part of the build) -- utils/llvm/gn/README.rst already has some more words
on that in "Philosophy".
(write_cmake_config.py is also going to be used to write clang's
clang/include/clang/Config/config.h)
This also adds a few files for linking to system libraries in a consistent way
if needed in llvm/utils/gn/build/libs (and moves pthread to that model).0
I'm also adding llvm/utils/gn/secondary/llvm/lib/Target/targets.gni in this
patch because $native_arch is needed for writing llvm-config.h -- the rest of
it will be used later, when the build files for llvm/lib/Target get added. That
file describes how to select which archs to build.
As a demo, also add a build file for llvm-undname and make it the default build
target (it depends on everything that can currently be built).
Differential Revision: https://reviews.llvm.org/D54678
llvm-svn: 347636
2018-11-27 13:19:17 +08:00
|
|
|
"""
|
|
|
|
|
2018-12-04 05:10:19 +08:00
|
|
|
from __future__ import print_function
|
|
|
|
|
[gn build] Create abi-breaking.h, config.h, llvm-config.h, and add a build file for llvm/lib/Support.
The comments at the top of
llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn and
llvm/utils/gn/build/write_cmake_config.py should explain the main bits
happening in this patch. The main parts here are that these headers are
generated at build time, not gn time, and that currently they don't do any
actual feature checks but just hardcode most things based on the current OS,
which seems to work well enough. If this stops being enough, the feature checks
should each be their own action writing the result to somewhere, and the config
write step should depend on those checks (so that they can run in parallel and
as part of the build) -- utils/llvm/gn/README.rst already has some more words
on that in "Philosophy".
(write_cmake_config.py is also going to be used to write clang's
clang/include/clang/Config/config.h)
This also adds a few files for linking to system libraries in a consistent way
if needed in llvm/utils/gn/build/libs (and moves pthread to that model).0
I'm also adding llvm/utils/gn/secondary/llvm/lib/Target/targets.gni in this
patch because $native_arch is needed for writing llvm-config.h -- the rest of
it will be used later, when the build files for llvm/lib/Target get added. That
file describes how to select which archs to build.
As a demo, also add a build file for llvm-undname and make it the default build
target (it depends on everything that can currently be built).
Differential Revision: https://reviews.llvm.org/D54678
llvm-svn: 347636
2018-11-27 13:19:17 +08:00
|
|
|
import argparse
|
|
|
|
import os
|
|
|
|
import re
|
|
|
|
import sys
|
|
|
|
|
|
|
|
|
|
|
|
def main():
|
|
|
|
parser = argparse.ArgumentParser(
|
|
|
|
epilog=__doc__,
|
|
|
|
formatter_class=argparse.RawDescriptionHelpFormatter)
|
|
|
|
parser.add_argument('input', help='input file')
|
|
|
|
parser.add_argument('values', nargs='*', help='several KEY=VALUE pairs')
|
|
|
|
parser.add_argument('-o', '--output', required=True,
|
|
|
|
help='output file')
|
|
|
|
args = parser.parse_args()
|
|
|
|
|
|
|
|
values = {}
|
|
|
|
for value in args.values:
|
|
|
|
key, val = value.split('=', 1)
|
2019-01-04 21:48:58 +08:00
|
|
|
if key in values:
|
|
|
|
print('duplicate key "%s" in args' % key, file=sys.stderr)
|
|
|
|
return 1
|
2018-12-07 01:42:35 +08:00
|
|
|
values[key] = val.replace('\\n', '\n')
|
[gn build] Create abi-breaking.h, config.h, llvm-config.h, and add a build file for llvm/lib/Support.
The comments at the top of
llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn and
llvm/utils/gn/build/write_cmake_config.py should explain the main bits
happening in this patch. The main parts here are that these headers are
generated at build time, not gn time, and that currently they don't do any
actual feature checks but just hardcode most things based on the current OS,
which seems to work well enough. If this stops being enough, the feature checks
should each be their own action writing the result to somewhere, and the config
write step should depend on those checks (so that they can run in parallel and
as part of the build) -- utils/llvm/gn/README.rst already has some more words
on that in "Philosophy".
(write_cmake_config.py is also going to be used to write clang's
clang/include/clang/Config/config.h)
This also adds a few files for linking to system libraries in a consistent way
if needed in llvm/utils/gn/build/libs (and moves pthread to that model).0
I'm also adding llvm/utils/gn/secondary/llvm/lib/Target/targets.gni in this
patch because $native_arch is needed for writing llvm-config.h -- the rest of
it will be used later, when the build files for llvm/lib/Target get added. That
file describes how to select which archs to build.
As a demo, also add a build file for llvm-undname and make it the default build
target (it depends on everything that can currently be built).
Differential Revision: https://reviews.llvm.org/D54678
llvm-svn: 347636
2018-11-27 13:19:17 +08:00
|
|
|
unused_values = set(values.keys())
|
|
|
|
|
2018-12-07 01:42:35 +08:00
|
|
|
# Matches e.g. '${FOO}' or '@FOO@' and captures FOO in group 1 or 2.
|
|
|
|
var_re = re.compile(r'\$\{([^}]*)\}|@([^@]*)@')
|
[gn build] Create abi-breaking.h, config.h, llvm-config.h, and add a build file for llvm/lib/Support.
The comments at the top of
llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn and
llvm/utils/gn/build/write_cmake_config.py should explain the main bits
happening in this patch. The main parts here are that these headers are
generated at build time, not gn time, and that currently they don't do any
actual feature checks but just hardcode most things based on the current OS,
which seems to work well enough. If this stops being enough, the feature checks
should each be their own action writing the result to somewhere, and the config
write step should depend on those checks (so that they can run in parallel and
as part of the build) -- utils/llvm/gn/README.rst already has some more words
on that in "Philosophy".
(write_cmake_config.py is also going to be used to write clang's
clang/include/clang/Config/config.h)
This also adds a few files for linking to system libraries in a consistent way
if needed in llvm/utils/gn/build/libs (and moves pthread to that model).0
I'm also adding llvm/utils/gn/secondary/llvm/lib/Target/targets.gni in this
patch because $native_arch is needed for writing llvm-config.h -- the rest of
it will be used later, when the build files for llvm/lib/Target get added. That
file describes how to select which archs to build.
As a demo, also add a build file for llvm-undname and make it the default build
target (it depends on everything that can currently be built).
Differential Revision: https://reviews.llvm.org/D54678
llvm-svn: 347636
2018-11-27 13:19:17 +08:00
|
|
|
|
|
|
|
in_lines = open(args.input).readlines()
|
|
|
|
out_lines = []
|
|
|
|
for in_line in in_lines:
|
|
|
|
def repl(m):
|
2018-12-07 01:42:35 +08:00
|
|
|
key = m.group(1) or m.group(2)
|
|
|
|
unused_values.discard(key)
|
|
|
|
return values[key]
|
2018-12-03 06:25:25 +08:00
|
|
|
in_line = var_re.sub(repl, in_line)
|
[gn build] Create abi-breaking.h, config.h, llvm-config.h, and add a build file for llvm/lib/Support.
The comments at the top of
llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn and
llvm/utils/gn/build/write_cmake_config.py should explain the main bits
happening in this patch. The main parts here are that these headers are
generated at build time, not gn time, and that currently they don't do any
actual feature checks but just hardcode most things based on the current OS,
which seems to work well enough. If this stops being enough, the feature checks
should each be their own action writing the result to somewhere, and the config
write step should depend on those checks (so that they can run in parallel and
as part of the build) -- utils/llvm/gn/README.rst already has some more words
on that in "Philosophy".
(write_cmake_config.py is also going to be used to write clang's
clang/include/clang/Config/config.h)
This also adds a few files for linking to system libraries in a consistent way
if needed in llvm/utils/gn/build/libs (and moves pthread to that model).0
I'm also adding llvm/utils/gn/secondary/llvm/lib/Target/targets.gni in this
patch because $native_arch is needed for writing llvm-config.h -- the rest of
it will be used later, when the build files for llvm/lib/Target get added. That
file describes how to select which archs to build.
As a demo, also add a build file for llvm-undname and make it the default build
target (it depends on everything that can currently be built).
Differential Revision: https://reviews.llvm.org/D54678
llvm-svn: 347636
2018-11-27 13:19:17 +08:00
|
|
|
if in_line.startswith('#cmakedefine01 '):
|
|
|
|
_, var = in_line.split()
|
2018-12-03 06:25:25 +08:00
|
|
|
in_line = '#define %s %d\n' % (var, 1 if values[var] else 0)
|
[gn build] Create abi-breaking.h, config.h, llvm-config.h, and add a build file for llvm/lib/Support.
The comments at the top of
llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn and
llvm/utils/gn/build/write_cmake_config.py should explain the main bits
happening in this patch. The main parts here are that these headers are
generated at build time, not gn time, and that currently they don't do any
actual feature checks but just hardcode most things based on the current OS,
which seems to work well enough. If this stops being enough, the feature checks
should each be their own action writing the result to somewhere, and the config
write step should depend on those checks (so that they can run in parallel and
as part of the build) -- utils/llvm/gn/README.rst already has some more words
on that in "Philosophy".
(write_cmake_config.py is also going to be used to write clang's
clang/include/clang/Config/config.h)
This also adds a few files for linking to system libraries in a consistent way
if needed in llvm/utils/gn/build/libs (and moves pthread to that model).0
I'm also adding llvm/utils/gn/secondary/llvm/lib/Target/targets.gni in this
patch because $native_arch is needed for writing llvm-config.h -- the rest of
it will be used later, when the build files for llvm/lib/Target get added. That
file describes how to select which archs to build.
As a demo, also add a build file for llvm-undname and make it the default build
target (it depends on everything that can currently be built).
Differential Revision: https://reviews.llvm.org/D54678
llvm-svn: 347636
2018-11-27 13:19:17 +08:00
|
|
|
unused_values.discard(var)
|
|
|
|
elif in_line.startswith('#cmakedefine '):
|
|
|
|
_, var = in_line.split(None, 1)
|
|
|
|
try:
|
|
|
|
var, val = var.split(None, 1)
|
2018-12-03 06:26:18 +08:00
|
|
|
in_line = '#define %s %s' % (var, val) # val ends in \n.
|
[gn build] Create abi-breaking.h, config.h, llvm-config.h, and add a build file for llvm/lib/Support.
The comments at the top of
llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn and
llvm/utils/gn/build/write_cmake_config.py should explain the main bits
happening in this patch. The main parts here are that these headers are
generated at build time, not gn time, and that currently they don't do any
actual feature checks but just hardcode most things based on the current OS,
which seems to work well enough. If this stops being enough, the feature checks
should each be their own action writing the result to somewhere, and the config
write step should depend on those checks (so that they can run in parallel and
as part of the build) -- utils/llvm/gn/README.rst already has some more words
on that in "Philosophy".
(write_cmake_config.py is also going to be used to write clang's
clang/include/clang/Config/config.h)
This also adds a few files for linking to system libraries in a consistent way
if needed in llvm/utils/gn/build/libs (and moves pthread to that model).0
I'm also adding llvm/utils/gn/secondary/llvm/lib/Target/targets.gni in this
patch because $native_arch is needed for writing llvm-config.h -- the rest of
it will be used later, when the build files for llvm/lib/Target get added. That
file describes how to select which archs to build.
As a demo, also add a build file for llvm-undname and make it the default build
target (it depends on everything that can currently be built).
Differential Revision: https://reviews.llvm.org/D54678
llvm-svn: 347636
2018-11-27 13:19:17 +08:00
|
|
|
except:
|
2018-12-03 06:26:18 +08:00
|
|
|
var = var.rstrip()
|
|
|
|
in_line = '#define %s\n' % var
|
|
|
|
if not values[var]:
|
2018-12-03 06:25:25 +08:00
|
|
|
in_line = '/* #undef %s */\n' % var
|
[gn build] Create abi-breaking.h, config.h, llvm-config.h, and add a build file for llvm/lib/Support.
The comments at the top of
llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn and
llvm/utils/gn/build/write_cmake_config.py should explain the main bits
happening in this patch. The main parts here are that these headers are
generated at build time, not gn time, and that currently they don't do any
actual feature checks but just hardcode most things based on the current OS,
which seems to work well enough. If this stops being enough, the feature checks
should each be their own action writing the result to somewhere, and the config
write step should depend on those checks (so that they can run in parallel and
as part of the build) -- utils/llvm/gn/README.rst already has some more words
on that in "Philosophy".
(write_cmake_config.py is also going to be used to write clang's
clang/include/clang/Config/config.h)
This also adds a few files for linking to system libraries in a consistent way
if needed in llvm/utils/gn/build/libs (and moves pthread to that model).0
I'm also adding llvm/utils/gn/secondary/llvm/lib/Target/targets.gni in this
patch because $native_arch is needed for writing llvm-config.h -- the rest of
it will be used later, when the build files for llvm/lib/Target get added. That
file describes how to select which archs to build.
As a demo, also add a build file for llvm-undname and make it the default build
target (it depends on everything that can currently be built).
Differential Revision: https://reviews.llvm.org/D54678
llvm-svn: 347636
2018-11-27 13:19:17 +08:00
|
|
|
unused_values.discard(var)
|
2018-12-03 06:25:25 +08:00
|
|
|
out_lines.append(in_line)
|
[gn build] Create abi-breaking.h, config.h, llvm-config.h, and add a build file for llvm/lib/Support.
The comments at the top of
llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn and
llvm/utils/gn/build/write_cmake_config.py should explain the main bits
happening in this patch. The main parts here are that these headers are
generated at build time, not gn time, and that currently they don't do any
actual feature checks but just hardcode most things based on the current OS,
which seems to work well enough. If this stops being enough, the feature checks
should each be their own action writing the result to somewhere, and the config
write step should depend on those checks (so that they can run in parallel and
as part of the build) -- utils/llvm/gn/README.rst already has some more words
on that in "Philosophy".
(write_cmake_config.py is also going to be used to write clang's
clang/include/clang/Config/config.h)
This also adds a few files for linking to system libraries in a consistent way
if needed in llvm/utils/gn/build/libs (and moves pthread to that model).0
I'm also adding llvm/utils/gn/secondary/llvm/lib/Target/targets.gni in this
patch because $native_arch is needed for writing llvm-config.h -- the rest of
it will be used later, when the build files for llvm/lib/Target get added. That
file describes how to select which archs to build.
As a demo, also add a build file for llvm-undname and make it the default build
target (it depends on everything that can currently be built).
Differential Revision: https://reviews.llvm.org/D54678
llvm-svn: 347636
2018-11-27 13:19:17 +08:00
|
|
|
|
|
|
|
if unused_values:
|
2018-12-04 05:10:19 +08:00
|
|
|
print('unused values args:', file=sys.stderr)
|
2018-12-20 07:52:16 +08:00
|
|
|
print(' ' + '\n '.join(unused_values), file=sys.stderr)
|
[gn build] Create abi-breaking.h, config.h, llvm-config.h, and add a build file for llvm/lib/Support.
The comments at the top of
llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn and
llvm/utils/gn/build/write_cmake_config.py should explain the main bits
happening in this patch. The main parts here are that these headers are
generated at build time, not gn time, and that currently they don't do any
actual feature checks but just hardcode most things based on the current OS,
which seems to work well enough. If this stops being enough, the feature checks
should each be their own action writing the result to somewhere, and the config
write step should depend on those checks (so that they can run in parallel and
as part of the build) -- utils/llvm/gn/README.rst already has some more words
on that in "Philosophy".
(write_cmake_config.py is also going to be used to write clang's
clang/include/clang/Config/config.h)
This also adds a few files for linking to system libraries in a consistent way
if needed in llvm/utils/gn/build/libs (and moves pthread to that model).0
I'm also adding llvm/utils/gn/secondary/llvm/lib/Target/targets.gni in this
patch because $native_arch is needed for writing llvm-config.h -- the rest of
it will be used later, when the build files for llvm/lib/Target get added. That
file describes how to select which archs to build.
As a demo, also add a build file for llvm-undname and make it the default build
target (it depends on everything that can currently be built).
Differential Revision: https://reviews.llvm.org/D54678
llvm-svn: 347636
2018-11-27 13:19:17 +08:00
|
|
|
return 1
|
|
|
|
|
|
|
|
output = ''.join(out_lines)
|
|
|
|
|
|
|
|
leftovers = var_re.findall(output)
|
|
|
|
if leftovers:
|
2019-04-17 14:11:27 +08:00
|
|
|
print(
|
|
|
|
'unprocessed values:\n',
|
|
|
|
'\n'.join([x[0] or x[1] for x in leftovers]),
|
|
|
|
file=sys.stderr)
|
[gn build] Create abi-breaking.h, config.h, llvm-config.h, and add a build file for llvm/lib/Support.
The comments at the top of
llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn and
llvm/utils/gn/build/write_cmake_config.py should explain the main bits
happening in this patch. The main parts here are that these headers are
generated at build time, not gn time, and that currently they don't do any
actual feature checks but just hardcode most things based on the current OS,
which seems to work well enough. If this stops being enough, the feature checks
should each be their own action writing the result to somewhere, and the config
write step should depend on those checks (so that they can run in parallel and
as part of the build) -- utils/llvm/gn/README.rst already has some more words
on that in "Philosophy".
(write_cmake_config.py is also going to be used to write clang's
clang/include/clang/Config/config.h)
This also adds a few files for linking to system libraries in a consistent way
if needed in llvm/utils/gn/build/libs (and moves pthread to that model).0
I'm also adding llvm/utils/gn/secondary/llvm/lib/Target/targets.gni in this
patch because $native_arch is needed for writing llvm-config.h -- the rest of
it will be used later, when the build files for llvm/lib/Target get added. That
file describes how to select which archs to build.
As a demo, also add a build file for llvm-undname and make it the default build
target (it depends on everything that can currently be built).
Differential Revision: https://reviews.llvm.org/D54678
llvm-svn: 347636
2018-11-27 13:19:17 +08:00
|
|
|
return 1
|
|
|
|
|
|
|
|
if not os.path.exists(args.output) or open(args.output).read() != output:
|
|
|
|
open(args.output, 'w').write(output)
|
2019-01-09 18:49:44 +08:00
|
|
|
os.chmod(args.output, os.stat(args.input).st_mode & 0o777)
|
[gn build] Create abi-breaking.h, config.h, llvm-config.h, and add a build file for llvm/lib/Support.
The comments at the top of
llvm/utils/gn/secondary/llvm/include/llvm/Config/BUILD.gn and
llvm/utils/gn/build/write_cmake_config.py should explain the main bits
happening in this patch. The main parts here are that these headers are
generated at build time, not gn time, and that currently they don't do any
actual feature checks but just hardcode most things based on the current OS,
which seems to work well enough. If this stops being enough, the feature checks
should each be their own action writing the result to somewhere, and the config
write step should depend on those checks (so that they can run in parallel and
as part of the build) -- utils/llvm/gn/README.rst already has some more words
on that in "Philosophy".
(write_cmake_config.py is also going to be used to write clang's
clang/include/clang/Config/config.h)
This also adds a few files for linking to system libraries in a consistent way
if needed in llvm/utils/gn/build/libs (and moves pthread to that model).0
I'm also adding llvm/utils/gn/secondary/llvm/lib/Target/targets.gni in this
patch because $native_arch is needed for writing llvm-config.h -- the rest of
it will be used later, when the build files for llvm/lib/Target get added. That
file describes how to select which archs to build.
As a demo, also add a build file for llvm-undname and make it the default build
target (it depends on everything that can currently be built).
Differential Revision: https://reviews.llvm.org/D54678
llvm-svn: 347636
2018-11-27 13:19:17 +08:00
|
|
|
|
|
|
|
|
|
|
|
if __name__ == '__main__':
|
|
|
|
sys.exit(main())
|