| 1 | #!/usr/bin/env python2
|
| 2 | """
|
| 3 | ninja_lib.py
|
| 4 |
|
| 5 | Runtime options:
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| 6 |
|
| 7 | CXXFLAGS Additional flags to pass to the C++ compiler
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| 8 |
|
| 9 | Notes on ninja_syntax.py:
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| 10 |
|
| 11 | - escape_path() seems wrong?
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| 12 | - It should really take $ to $$.
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| 13 | - It doesn't escape newlines
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| 14 |
|
| 15 | return word.replace('$ ', '$$ ').replace(' ', '$ ').replace(':', '$:')
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| 16 |
|
| 17 | Ninja shouldn't have used $ and ALSO used shell commands (sh -c)! Better
|
| 18 | solutions:
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| 19 |
|
| 20 | - Spawn a process with environment variables.
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| 21 | - use % for substitution instead
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| 22 |
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| 23 | - Another problem: Ninja doesn't escape the # comment character like $#, so
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| 24 | how can you write a string with a # as the first char on a line?
|
| 25 | """
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| 26 | from __future__ import print_function
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| 27 |
|
| 28 | import collections
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| 29 | import glob
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| 30 | import os
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| 31 | import sys
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| 32 |
|
| 33 |
|
| 34 | def log(msg, *args):
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| 35 | if args:
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| 36 | msg = msg % args
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| 37 | print(msg, file=sys.stderr)
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| 38 |
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| 39 |
|
| 40 | def globs(pat):
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| 41 | """Deterministic glob, e.g. for _gen/bin/text_files.cc."""
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| 42 | return sorted(glob.glob(pat))
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| 43 |
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| 44 |
|
| 45 | # Matrix of configurations
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| 46 |
|
| 47 | COMPILERS_VARIANTS = [
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| 48 | ('cxx', 'dbg'),
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| 49 | ('cxx', 'opt'),
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| 50 | ('cxx', 'asan'),
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| 51 |
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| 52 | ('cxx', 'asan+gcalways'),
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| 53 | ('cxx', 'asan32+gcalways'),
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| 54 |
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| 55 | ('cxx', 'ubsan'),
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| 56 |
|
| 57 | #('clang', 'asan'),
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| 58 | ('clang', 'dbg'), # compile-quickly
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| 59 | ('clang', 'opt'), # for comparisons
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| 60 | ('clang', 'ubsan'), # finds different bugs
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| 61 | ('clang', 'coverage'),
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| 62 | ]
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| 63 |
|
| 64 | GC_PERF_VARIANTS = [
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| 65 | ('cxx', 'opt+bumpleak'),
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| 66 | ('cxx', 'opt+bumproot'),
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| 67 |
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| 68 | ('cxx', 'opt+bumpsmall'),
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| 69 | ('cxx', 'asan+bumpsmall'),
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| 70 |
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| 71 | ('cxx', 'opt+nopool'),
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| 72 |
|
| 73 | # TODO: should be binary with different files
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| 74 | ('cxx', 'opt+cheney'),
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| 75 |
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| 76 | ('cxx', 'opt+tcmalloc'),
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| 77 |
|
| 78 | # For tracing allocations, or debugging
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| 79 | ('cxx', 'uftrace'),
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| 80 |
|
| 81 | # Test performance of 32-bit build. (It uses less memory usage, but can be
|
| 82 | # slower.)
|
| 83 | ('cxx', 'opt32'),
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| 84 | ]
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| 85 |
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| 86 | SMALL_TEST_MATRIX = [
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| 87 | ('cxx', 'asan'),
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| 88 | ('cxx', 'ubsan'),
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| 89 | ('clang', 'coverage'),
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| 90 | ]
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| 91 |
|
| 92 |
|
| 93 | def ConfigDir(config):
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| 94 | compiler, variant, more_cxx_flags = config
|
| 95 | if more_cxx_flags is None:
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| 96 | return '%s-%s' % (compiler, variant)
|
| 97 | else:
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| 98 | # -D CPP_UNIT_TEST -> D_CPP_UNIT_TEST
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| 99 | flags_str = more_cxx_flags.replace('-', '').replace(' ', '_')
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| 100 | return '%s-%s-%s' % (compiler, variant, flags_str)
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| 101 |
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| 102 |
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| 103 | def ObjPath(src_path, config):
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| 104 | rel_path, _ = os.path.splitext(src_path)
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| 105 | return '_build/obj/%s/%s.o' % (ConfigDir(config), rel_path)
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| 106 |
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| 107 |
|
| 108 | # Used namedtuple since it doesn't have any state
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| 109 | CcBinary = collections.namedtuple(
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| 110 | 'CcBinary',
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| 111 | 'main_cc symlinks implicit deps matrix phony_prefix preprocessed bin_path')
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| 112 |
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| 113 |
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| 114 | class CcLibrary(object):
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| 115 | """
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| 116 | Life cycle:
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| 117 |
|
| 118 | 1. A cc_library is first created
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| 119 | 2. A cc_binary can depend on it
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| 120 | - maybe writing rules, and ensuring uniques per configuration
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| 121 | 3. The link step needs the list of objects
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| 122 | 4. The tarball needs the list of sources for binary
|
| 123 | """
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| 124 |
|
| 125 | def __init__(self, label, srcs, implicit, deps, headers, generated_headers):
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| 126 | self.label = label
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| 127 | self.srcs = srcs # queried by SourcesForBinary
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| 128 | self.implicit = implicit
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| 129 | self.deps = deps
|
| 130 | self.headers = headers
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| 131 | # TODO: asdl() rule should add to this.
|
| 132 | # Generated headers are different than regular headers. The former need an
|
| 133 | # implicit dep in Ninja, while the latter can rely on the .d mechanism.
|
| 134 | self.generated_headers = generated_headers
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| 135 |
|
| 136 | self.obj_lookup = {} # config -> list of objects
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| 137 | self.preprocessed_lookup = {} # config -> boolean
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| 138 |
|
| 139 | def _CalculateImplicit(self, ru):
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| 140 | """ Compile actions for cc_library() also need implicit deps on generated headers"""
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| 141 |
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| 142 | out_deps = set()
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| 143 | ru._TransitiveClosure(self.label, self.deps, out_deps)
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| 144 | unique_deps = sorted(out_deps)
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| 145 |
|
| 146 | implicit = list(self.implicit) # copy
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| 147 | for label in unique_deps:
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| 148 | cc_lib = ru.cc_libs[label]
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| 149 | implicit.extend(cc_lib.generated_headers)
|
| 150 | return implicit
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| 151 |
|
| 152 | def MaybeWrite(self, ru, config, preprocessed):
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| 153 | if config not in self.obj_lookup: # already written by some other cc_binary()
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| 154 | implicit = self._CalculateImplicit(ru)
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| 155 |
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| 156 | objects = []
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| 157 | for src in self.srcs:
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| 158 | obj = ObjPath(src, config)
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| 159 | ru.compile(obj, src, self.deps, config, implicit=implicit)
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| 160 | objects.append(obj)
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| 161 |
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| 162 | self.obj_lookup[config] = objects
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| 163 |
|
| 164 | if preprocessed and config not in self.preprocessed_lookup:
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| 165 | implicit = self._CalculateImplicit(ru)
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| 166 |
|
| 167 | for src in self.srcs:
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| 168 | # no output needed
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| 169 | ru.compile('', src, self.deps, config, implicit=implicit,
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| 170 | maybe_preprocess=True)
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| 171 | self.preprocessed_lookup[config] = True
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| 172 |
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| 173 |
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| 174 | class Rules(object):
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| 175 | """High-level wrapper for NinjaWriter
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| 176 |
|
| 177 | What should it handle?
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| 178 |
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| 179 | - The (compiler, variant) matrix loop
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| 180 | - Implicit deps for generated code
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| 181 | - Phony convenience targets
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| 182 |
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| 183 | Maybe: exporting data to test runner
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| 184 |
|
| 185 | Terminology:
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| 186 |
|
| 187 | Ninja has
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| 188 | - rules, which are like Bazel "actions"
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| 189 | - build targets
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| 190 |
|
| 191 | Our library has:
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| 192 | - Build config: (compiler, variant), and more later
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| 193 |
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| 194 | - Labels: identifiers starting with //, which are higher level than Ninja
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| 195 | "targets"
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| 196 | cc_library:
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| 197 | //mycpp/runtime
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| 198 |
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| 199 | //mycpp/examples/expr.asdl
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| 200 | //frontend/syntax.asdl
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| 201 |
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| 202 | - Deps are lists of labels, and have a transitive closure
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| 203 |
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| 204 | - H Rules / High level rules? B rules / Boil?
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| 205 | cc_binary, cc_library, asdl, etc.
|
| 206 | """
|
| 207 | def __init__(self, n):
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| 208 | self.n = n # direct ninja writer
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| 209 |
|
| 210 | self.cc_bins = [] # list of CcBinary() objects to write
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| 211 | self.cc_libs = {} # label -> CcLibrary object
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| 212 | self.cc_binary_deps = {} # main_cc -> list of LABELS
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| 213 | self.phony = {} # list of phony targets
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| 214 |
|
| 215 | def AddPhony(self, phony_to_add):
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| 216 | self.phony.update(phony_to_add)
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| 217 |
|
| 218 | def WritePhony(self):
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| 219 | for name in sorted(self.phony):
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| 220 | targets = self.phony[name]
|
| 221 | if targets:
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| 222 | self.n.build([name], 'phony', targets)
|
| 223 | self.n.newline()
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| 224 |
|
| 225 | def WriteRules(self):
|
| 226 | for cc_bin in self.cc_bins:
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| 227 | self.WriteCcBinary(cc_bin)
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| 228 |
|
| 229 | def compile(self, out_obj, in_cc, deps, config, implicit=None, maybe_preprocess=False):
|
| 230 | """ .cc -> compiler -> .o """
|
| 231 |
|
| 232 | implicit = implicit or []
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| 233 |
|
| 234 | compiler, variant, more_cxx_flags = config
|
| 235 | if more_cxx_flags is None:
|
| 236 | flags_str = "''"
|
| 237 | else:
|
| 238 | assert "'" not in more_cxx_flags, more_cxx_flags # can't handle single quotes
|
| 239 | flags_str = "'%s'" % more_cxx_flags
|
| 240 |
|
| 241 | v = [('compiler', compiler), ('variant', variant), ('more_cxx_flags', flags_str)]
|
| 242 | if maybe_preprocess:
|
| 243 | # Limit it to certain configs
|
| 244 | if more_cxx_flags is None and variant in ('dbg', 'opt'):
|
| 245 | pre = '_build/preprocessed/%s-%s/%s' % (compiler, variant, in_cc)
|
| 246 | self.n.build(pre, 'preprocess', [in_cc], implicit=implicit, variables=v)
|
| 247 | else:
|
| 248 | self.n.build([out_obj], 'compile_one', [in_cc], implicit=implicit, variables=v)
|
| 249 |
|
| 250 | self.n.newline()
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| 251 |
|
| 252 | def link(self, out_bin, main_obj, deps, config):
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| 253 | """ list of .o -> linker -> executable, along with stripped version """
|
| 254 | compiler, variant, _ = config
|
| 255 |
|
| 256 | assert isinstance(out_bin, str), out_bin
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| 257 | assert isinstance(main_obj, str), main_obj
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| 258 |
|
| 259 | objects = [main_obj]
|
| 260 | for label in deps:
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| 261 | key = (label, compiler, variant)
|
| 262 | try:
|
| 263 | cc_lib = self.cc_libs[label]
|
| 264 | except KeyError:
|
| 265 | raise RuntimeError("Couldn't resolve label %r" % label)
|
| 266 |
|
| 267 | o = cc_lib.obj_lookup[config]
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| 268 | objects.extend(o)
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| 269 |
|
| 270 | v = [('compiler', compiler), ('variant', variant), ('more_link_flags', "''")]
|
| 271 | self.n.build([out_bin], 'link', objects, variables=v)
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| 272 | self.n.newline()
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| 273 |
|
| 274 | # Strip any .opt binaries
|
| 275 | if variant.startswith('opt') or variant.startswith('opt32'):
|
| 276 | stripped = out_bin + '.stripped'
|
| 277 | symbols = out_bin + '.symbols'
|
| 278 | self.n.build([stripped, symbols], 'strip', [out_bin])
|
| 279 | self.n.newline()
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| 280 |
|
| 281 | def comment(self, s):
|
| 282 | self.n.comment(s)
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| 283 | self.n.newline()
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| 284 |
|
| 285 | def cc_library(self, label,
|
| 286 | srcs = None,
|
| 287 | implicit = None,
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| 288 | deps = None,
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| 289 | # note: headers is only used for tarball manifest, not compiler command line
|
| 290 | headers = None,
|
| 291 | generated_headers = None):
|
| 292 |
|
| 293 | # srcs = [] is allowed for _gen/asdl/hnode.asdl.h
|
| 294 | if srcs is None:
|
| 295 | raise RuntimeError('cc_library %r requires srcs' % label)
|
| 296 |
|
| 297 | implicit = implicit or []
|
| 298 | deps = deps or []
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| 299 | headers = headers or []
|
| 300 | generated_headers = generated_headers or []
|
| 301 |
|
| 302 | if label in self.cc_libs:
|
| 303 | raise RuntimeError('%s was already defined' % label)
|
| 304 |
|
| 305 | self.cc_libs[label] = CcLibrary(label, srcs, implicit, deps,
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| 306 | headers, generated_headers)
|
| 307 |
|
| 308 | def _TransitiveClosure(self, name, deps, unique_out):
|
| 309 | """
|
| 310 | Args:
|
| 311 | name: for error messages
|
| 312 | """
|
| 313 | for label in deps:
|
| 314 | if label in unique_out:
|
| 315 | continue
|
| 316 | unique_out.add(label)
|
| 317 |
|
| 318 | try:
|
| 319 | cc_lib = self.cc_libs[label]
|
| 320 | except KeyError:
|
| 321 | raise RuntimeError('Undefined label %s in %s' % (label, name))
|
| 322 |
|
| 323 | self._TransitiveClosure(cc_lib.label, cc_lib.deps, unique_out)
|
| 324 |
|
| 325 | def cc_binary(self, main_cc,
|
| 326 | symlinks = None,
|
| 327 | implicit = None, # for COMPILE action, not link action
|
| 328 | deps = None,
|
| 329 | matrix = None, # $compiler $variant
|
| 330 | phony_prefix = None,
|
| 331 | preprocessed = False,
|
| 332 | bin_path = None, # default is _bin/$compiler-$variant/rel/path
|
| 333 | ):
|
| 334 | symlinks = symlinks or []
|
| 335 | implicit = implicit or []
|
| 336 | deps = deps or []
|
| 337 | if not matrix:
|
| 338 | raise RuntimeError("Config matrix required")
|
| 339 |
|
| 340 | cc_bin = CcBinary(main_cc, symlinks, implicit, deps, matrix, phony_prefix,
|
| 341 | preprocessed, bin_path)
|
| 342 |
|
| 343 | self.cc_bins.append(cc_bin)
|
| 344 |
|
| 345 | def WriteCcBinary(self, cc_bin):
|
| 346 | c = cc_bin
|
| 347 |
|
| 348 | out_deps = set()
|
| 349 | self._TransitiveClosure(c.main_cc, c.deps, out_deps)
|
| 350 | unique_deps = sorted(out_deps)
|
| 351 |
|
| 352 | # save for SourcesForBinary()
|
| 353 | self.cc_binary_deps[c.main_cc] = unique_deps
|
| 354 |
|
| 355 | compile_imp = list(c.implicit)
|
| 356 | for label in unique_deps:
|
| 357 | cc_lib = self.cc_libs[label] # should exit
|
| 358 | # compile actions of binaries that have ASDL label deps need the
|
| 359 | # generated header as implicit dep
|
| 360 | compile_imp.extend(cc_lib.generated_headers)
|
| 361 |
|
| 362 | for config in c.matrix:
|
| 363 | if len(config) == 2:
|
| 364 | config = (config[0], config[1], None)
|
| 365 |
|
| 366 | for label in unique_deps:
|
| 367 | cc_lib = self.cc_libs[label] # should exit
|
| 368 |
|
| 369 | cc_lib.MaybeWrite(self, config, c.preprocessed)
|
| 370 |
|
| 371 | # Compile main object, maybe with IMPLICIT headers deps
|
| 372 | main_obj = ObjPath(c.main_cc, config)
|
| 373 | self.compile(main_obj, c.main_cc, c.deps, config, implicit=compile_imp)
|
| 374 | if c.preprocessed:
|
| 375 | self.compile('', c.main_cc, c.deps, config, implicit=compile_imp,
|
| 376 | maybe_preprocess=True)
|
| 377 |
|
| 378 | config_dir = ConfigDir(config)
|
| 379 | bin_dir = '_bin/%s' % config_dir
|
| 380 |
|
| 381 | if c.bin_path:
|
| 382 | # e.g. _bin/cxx-dbg/oils_for_unix
|
| 383 | bin_ = '%s/%s' % (bin_dir, c.bin_path)
|
| 384 | else:
|
| 385 | # e.g. _gen/mycpp/examples/classes.mycpp
|
| 386 | rel_path, _ = os.path.splitext(c.main_cc)
|
| 387 |
|
| 388 | # Put binary in _bin/cxx-dbg/mycpp/examples, not _bin/cxx-dbg/_gen/mycpp/examples
|
| 389 | if rel_path.startswith('_gen/'):
|
| 390 | rel_path = rel_path[len('_gen/'):]
|
| 391 |
|
| 392 | bin_= '%s/%s' % (bin_dir, rel_path)
|
| 393 |
|
| 394 | # Link with OBJECT deps
|
| 395 | self.link(bin_, main_obj, unique_deps, config)
|
| 396 |
|
| 397 | # Make symlinks
|
| 398 | for symlink in c.symlinks:
|
| 399 | # Must explicitly specify bin_path to have a symlink, for now
|
| 400 | assert c.bin_path is not None
|
| 401 | self.n.build(
|
| 402 | ['%s/%s' % (bin_dir, symlink)],
|
| 403 | 'symlink',
|
| 404 | [bin_],
|
| 405 | variables = [('dir', bin_dir), ('target', c.bin_path), ('new', symlink)])
|
| 406 | self.n.newline()
|
| 407 |
|
| 408 | if c.phony_prefix:
|
| 409 | key = '%s-%s' % (c.phony_prefix, config_dir)
|
| 410 | if key not in self.phony:
|
| 411 | self.phony[key] = []
|
| 412 | self.phony[key].append(bin_)
|
| 413 |
|
| 414 | def SourcesForBinary(self, main_cc):
|
| 415 | """
|
| 416 | Used for preprocessed metrics, release tarball, _build/oils.sh, etc.
|
| 417 | """
|
| 418 | deps = self.cc_binary_deps[main_cc]
|
| 419 | sources = [main_cc]
|
| 420 | for label in deps:
|
| 421 | sources.extend(self.cc_libs[label].srcs)
|
| 422 | return sources
|
| 423 |
|
| 424 | def HeadersForBinary(self, main_cc):
|
| 425 | deps = self.cc_binary_deps[main_cc]
|
| 426 | headers = []
|
| 427 | for label in deps:
|
| 428 | headers.extend(self.cc_libs[label].headers)
|
| 429 | headers.extend(self.cc_libs[label].generated_headers)
|
| 430 | return headers
|
| 431 |
|
| 432 | def asdl_library(self, asdl_path, deps = None,
|
| 433 | pretty_print_methods=True):
|
| 434 |
|
| 435 | deps = deps or []
|
| 436 |
|
| 437 | # SYSTEM header, _gen/asdl/hnode.asdl.h
|
| 438 | deps.append('//asdl/hnode.asdl')
|
| 439 |
|
| 440 | # to create _gen/mycpp/examples/expr.asdl.h
|
| 441 | prefix = '_gen/%s' % asdl_path
|
| 442 |
|
| 443 | out_cc = prefix + '.cc'
|
| 444 | out_header = prefix + '.h'
|
| 445 |
|
| 446 | asdl_flags = ''
|
| 447 |
|
| 448 | if pretty_print_methods:
|
| 449 | outputs = [out_cc, out_header]
|
| 450 | else:
|
| 451 | outputs = [out_header]
|
| 452 | asdl_flags += '--no-pretty-print-methods'
|
| 453 |
|
| 454 | debug_mod = prefix + '_debug.py'
|
| 455 | outputs.append(debug_mod)
|
| 456 |
|
| 457 | # Generating syntax_asdl.h does NOT depend on hnode_asdl.h existing ...
|
| 458 | self.n.build(outputs, 'asdl-cpp', [asdl_path],
|
| 459 | implicit = ['_bin/shwrap/asdl_main'],
|
| 460 | variables = [
|
| 461 | ('action', 'cpp'),
|
| 462 | ('out_prefix', prefix),
|
| 463 | ('asdl_flags', asdl_flags),
|
| 464 | ('debug_mod', debug_mod),
|
| 465 | ])
|
| 466 | self.n.newline()
|
| 467 |
|
| 468 | # ... But COMPILING anything that #includes it does.
|
| 469 | # Note: assumes there's a build rule for this "system" ASDL schema
|
| 470 |
|
| 471 | srcs = [out_cc] if pretty_print_methods else []
|
| 472 | # Define lazy CC library
|
| 473 | self.cc_library(
|
| 474 | '//' + asdl_path,
|
| 475 | srcs = srcs,
|
| 476 | deps = deps,
|
| 477 | # For compile_one steps of files that #include this ASDL file
|
| 478 | generated_headers = [out_header],
|
| 479 | )
|
| 480 |
|
| 481 | def py_binary(self, main_py, deps_base_dir='_build/NINJA', template='py'):
|
| 482 | """
|
| 483 | Wrapper for Python script with dynamically discovered deps
|
| 484 | """
|
| 485 | rel_path, _ = os.path.splitext(main_py)
|
| 486 | py_module = rel_path.replace('/', '.') # asdl/asdl_main.py -> asdl.asdl_main
|
| 487 |
|
| 488 | deps_path = os.path.join(deps_base_dir, py_module, 'deps.txt')
|
| 489 | with open(deps_path) as f:
|
| 490 | deps = [line.strip() for line in f]
|
| 491 |
|
| 492 | deps.remove(main_py) # raises ValueError if it's not there
|
| 493 |
|
| 494 | basename = os.path.basename(rel_path)
|
| 495 | self.n.build('_bin/shwrap/%s' % basename, 'write-shwrap', [main_py] + deps,
|
| 496 | variables=[('template', template)])
|
| 497 | self.n.newline()
|
| 498 |
|
| 499 | def souffle_binary(self, souffle_cpp):
|
| 500 | """
|
| 501 | Compile a souffle C++ into a native executable.
|
| 502 | """
|
| 503 | rel_path, _ = os.path.splitext(souffle_cpp)
|
| 504 | basename = os.path.basename(rel_path)
|
| 505 |
|
| 506 | souffle_obj = '_build/obj/datalog/%s.o' % basename
|
| 507 | self.n.build(
|
| 508 | [souffle_obj], 'compile_one', souffle_cpp,
|
| 509 | variables=[
|
| 510 | ('compiler', 'cxx'),
|
| 511 | ('variant', 'opt'),
|
| 512 | ('more_cxx_flags', "'-Ivendor -std=c++17'")
|
| 513 | ])
|
| 514 |
|
| 515 | souffle_bin = '_bin/datalog/%s' % basename
|
| 516 | self.n.build(
|
| 517 | [souffle_bin], 'link', souffle_obj,
|
| 518 | variables=[
|
| 519 | ('compiler', 'cxx'),
|
| 520 | ('variant', 'opt'),
|
| 521 | ('more_link_flags', "'-lstdc++fs'")
|
| 522 | ])
|
| 523 |
|
| 524 | self.n.newline()
|