mirror of
https://github.com/nim-lang/Nim.git
synced 2025-12-29 17:34:43 +00:00
efcb89fa70
We were doing a very poor job detecting the major version of GCC by parsing the output of --version. This patches uses -dumpversion to make this parsing straightforward and it also fixes a bunch of compiling issues on different platforms with custom output for --version switches. For example, openSUSE first line of the output includes the revision number and the parsing that was being done did mix that number with the major version and breaks building the nim compiler (as it doesn't find the 3 dots for an X.Y.Z semver format, hence returning "false"). In this patch, we simply use -dumpversion (which has been at least from 1993, so we are safe :)
1060 lines
42 KiB
Nim
1060 lines
42 KiB
Nim
#
|
|
#
|
|
# The Nim Compiler
|
|
# (c) Copyright 2013 Andreas Rumpf
|
|
#
|
|
# See the file "copying.txt", included in this
|
|
# distribution, for details about the copyright.
|
|
#
|
|
|
|
# Module providing functions for calling the different external C compilers
|
|
# Uses some hard-wired facts about each C/C++ compiler, plus options read
|
|
# from a lineinfos file, to provide generalized procedures to compile
|
|
# nim files.
|
|
|
|
import ropes, platform, condsyms, options, msgs, lineinfos, pathutils, modulepaths
|
|
|
|
import std/[os, strutils, osproc, sha1, streams, sequtils, times, strtabs, json, jsonutils, sugar, parseutils]
|
|
|
|
when defined(nimPreviewSlimSystem):
|
|
import std/syncio
|
|
|
|
type
|
|
TInfoCCProp* = enum # properties of the C compiler:
|
|
hasSwitchRange, # CC allows ranges in switch statements (GNU C)
|
|
hasComputedGoto, # CC has computed goto (GNU C extension)
|
|
hasCpp, # CC is/contains a C++ compiler
|
|
hasAssume, # CC has __assume (Visual C extension)
|
|
hasGcGuard, # CC supports GC_GUARD to keep stack roots
|
|
hasGnuAsm, # CC's asm uses the absurd GNU assembler syntax
|
|
hasDeclspec, # CC has __declspec(X)
|
|
hasAttribute, # CC has __attribute__((X))
|
|
TInfoCCProps* = set[TInfoCCProp]
|
|
TInfoCC* = tuple[
|
|
name: string, # the short name of the compiler
|
|
objExt: string, # the compiler's object file extension
|
|
optSpeed: string, # the options for optimization for speed
|
|
optSize: string, # the options for optimization for size
|
|
compilerExe: string, # the compiler's executable
|
|
cppCompiler: string, # name of the C++ compiler's executable (if supported)
|
|
compileTmpl: string, # the compile command template
|
|
buildGui: string, # command to build a GUI application
|
|
buildDll: string, # command to build a shared library
|
|
buildLib: string, # command to build a static library
|
|
linkerExe: string, # the linker's executable (if not matching compiler's)
|
|
linkTmpl: string, # command to link files to produce an exe
|
|
includeCmd: string, # command to add an include dir
|
|
linkDirCmd: string, # command to add a lib dir
|
|
linkLibCmd: string, # command to link an external library
|
|
debug: string, # flags for debug build
|
|
pic: string, # command for position independent code
|
|
# used on some platforms
|
|
asmStmtFrmt: string, # format of ASM statement
|
|
structStmtFmt: string, # Format for struct statement
|
|
produceAsm: string, # Format how to produce assembler listings
|
|
cppXsupport: string, # what to do to enable C++X support
|
|
props: TInfoCCProps] # properties of the C compiler
|
|
|
|
|
|
# Configuration settings for various compilers.
|
|
# When adding new compilers, the cmake sources could be a good reference:
|
|
# http://cmake.org/gitweb?p=cmake.git;a=tree;f=Modules/Platform;
|
|
|
|
template compiler(name, settings: untyped): untyped =
|
|
proc name: TInfoCC {.compileTime.} = settings
|
|
|
|
const
|
|
gnuAsmListing = "-Wa,-acdl=$asmfile -g -fverbose-asm -masm=intel"
|
|
|
|
# GNU C and C++ Compiler
|
|
compiler gcc:
|
|
result = (
|
|
name: "gcc",
|
|
objExt: "o",
|
|
optSpeed: " -O3 -fno-ident",
|
|
optSize: " -Os -fno-ident",
|
|
compilerExe: "gcc",
|
|
cppCompiler: "g++",
|
|
compileTmpl: "-c $options $include -o $objfile $file",
|
|
buildGui: " -mwindows",
|
|
buildDll: " -shared",
|
|
buildLib: "ar rcs $libfile $objfiles",
|
|
linkerExe: "",
|
|
linkTmpl: "$buildgui $builddll -o $exefile $objfiles $options",
|
|
includeCmd: " -I",
|
|
linkDirCmd: " -L",
|
|
linkLibCmd: " -l$1",
|
|
debug: "",
|
|
pic: "-fPIC",
|
|
asmStmtFrmt: "__asm__($1);$n",
|
|
structStmtFmt: "$1 $3 $2 ", # struct|union [packed] $name
|
|
produceAsm: gnuAsmListing,
|
|
cppXsupport: "-std=gnu++14 -funsigned-char",
|
|
props: {hasSwitchRange, hasComputedGoto, hasCpp, hasGcGuard, hasGnuAsm,
|
|
hasAttribute})
|
|
|
|
# GNU C and C++ Compiler
|
|
compiler nintendoSwitchGCC:
|
|
result = (
|
|
name: "switch_gcc",
|
|
objExt: "o",
|
|
optSpeed: " -O3 ",
|
|
optSize: " -Os ",
|
|
compilerExe: "aarch64-none-elf-gcc",
|
|
cppCompiler: "aarch64-none-elf-g++",
|
|
compileTmpl: "-w -MMD -MP -MF $dfile -c $options $include -o $objfile $file",
|
|
buildGui: " -mwindows",
|
|
buildDll: " -shared",
|
|
buildLib: "aarch64-none-elf-gcc-ar rcs $libfile $objfiles",
|
|
linkerExe: "aarch64-none-elf-gcc",
|
|
linkTmpl: "$buildgui $builddll -Wl,-Map,$mapfile -o $exefile $objfiles $options",
|
|
includeCmd: " -I",
|
|
linkDirCmd: " -L",
|
|
linkLibCmd: " -l$1",
|
|
debug: "",
|
|
pic: "-fPIE",
|
|
asmStmtFrmt: "asm($1);$n",
|
|
structStmtFmt: "$1 $3 $2 ", # struct|union [packed] $name
|
|
produceAsm: gnuAsmListing,
|
|
cppXsupport: "-std=gnu++14 -funsigned-char",
|
|
props: {hasSwitchRange, hasComputedGoto, hasCpp, hasGcGuard, hasGnuAsm,
|
|
hasAttribute})
|
|
|
|
# LLVM Frontend for GCC/G++
|
|
compiler llvmGcc:
|
|
result = gcc() # Uses settings from GCC
|
|
|
|
result.name = "llvm_gcc"
|
|
result.compilerExe = "llvm-gcc"
|
|
result.cppCompiler = "llvm-g++"
|
|
when defined(macosx) or defined(openbsd):
|
|
# `llvm-ar` not available
|
|
result.buildLib = "ar rcs $libfile $objfiles"
|
|
else:
|
|
result.buildLib = "llvm-ar rcs $libfile $objfiles"
|
|
|
|
# Clang (LLVM) C/C++ Compiler
|
|
compiler clang:
|
|
result = llvmGcc() # Uses settings from llvmGcc
|
|
|
|
result.name = "clang"
|
|
result.compilerExe = "clang"
|
|
result.cppCompiler = "clang++"
|
|
|
|
# Microsoft Visual C/C++ Compiler
|
|
compiler vcc:
|
|
result = (
|
|
name: "vcc",
|
|
objExt: "obj",
|
|
optSpeed: " /Ogityb2 ",
|
|
optSize: " /O1 ",
|
|
compilerExe: "cl",
|
|
cppCompiler: "cl",
|
|
compileTmpl: "/c$vccplatform $options $include /nologo /Fo$objfile $file",
|
|
buildGui: " /SUBSYSTEM:WINDOWS user32.lib ",
|
|
buildDll: " /LD",
|
|
buildLib: "lib /OUT:$libfile $objfiles",
|
|
linkerExe: "cl",
|
|
linkTmpl: "$builddll$vccplatform /Fe$exefile $objfiles $buildgui /nologo $options",
|
|
includeCmd: " /I",
|
|
linkDirCmd: " /LIBPATH:",
|
|
linkLibCmd: " $1.lib",
|
|
debug: " /RTC1 /Z7 ",
|
|
pic: "",
|
|
asmStmtFrmt: "__asm{$n$1$n}$n",
|
|
structStmtFmt: "$3$n$1 $2",
|
|
produceAsm: "/Fa$asmfile",
|
|
cppXsupport: "",
|
|
props: {hasCpp, hasAssume, hasDeclspec})
|
|
|
|
compiler clangcl:
|
|
result = vcc()
|
|
result.name = "clang_cl"
|
|
result.compilerExe = "clang-cl"
|
|
result.cppCompiler = "clang-cl"
|
|
result.linkerExe = "clang-cl"
|
|
result.linkTmpl = "-fuse-ld=lld " & result.linkTmpl
|
|
|
|
# Intel C/C++ Compiler
|
|
compiler icl:
|
|
result = vcc()
|
|
result.name = "icl"
|
|
result.compilerExe = "icl"
|
|
result.linkerExe = "icl"
|
|
|
|
# Intel compilers try to imitate the native ones (gcc and msvc)
|
|
compiler icc:
|
|
result = gcc()
|
|
result.name = "icc"
|
|
result.compilerExe = "icc"
|
|
result.linkerExe = "icc"
|
|
|
|
# Borland C Compiler
|
|
compiler bcc:
|
|
result = (
|
|
name: "bcc",
|
|
objExt: "obj",
|
|
optSpeed: " -O3 -6 ",
|
|
optSize: " -O1 -6 ",
|
|
compilerExe: "bcc32c",
|
|
cppCompiler: "cpp32c",
|
|
compileTmpl: "-c $options $include -o$objfile $file",
|
|
buildGui: " -tW",
|
|
buildDll: " -tWD",
|
|
buildLib: "", # XXX: not supported yet
|
|
linkerExe: "bcc32",
|
|
linkTmpl: "$options $buildgui $builddll -e$exefile $objfiles",
|
|
includeCmd: " -I",
|
|
linkDirCmd: "", # XXX: not supported yet
|
|
linkLibCmd: "", # XXX: not supported yet
|
|
debug: "",
|
|
pic: "",
|
|
asmStmtFrmt: "__asm{$n$1$n}$n",
|
|
structStmtFmt: "$1 $2",
|
|
produceAsm: "",
|
|
cppXsupport: "",
|
|
props: {hasSwitchRange, hasComputedGoto, hasCpp, hasGcGuard,
|
|
hasAttribute})
|
|
|
|
# Tiny C Compiler
|
|
compiler tcc:
|
|
result = (
|
|
name: "tcc",
|
|
objExt: "o",
|
|
optSpeed: "",
|
|
optSize: "",
|
|
compilerExe: "tcc",
|
|
cppCompiler: "",
|
|
compileTmpl: "-c $options $include -o $objfile $file",
|
|
buildGui: "-Wl,-subsystem=gui",
|
|
buildDll: " -shared",
|
|
buildLib: "", # XXX: not supported yet
|
|
linkerExe: "tcc",
|
|
linkTmpl: "-o $exefile $options $buildgui $builddll $objfiles",
|
|
includeCmd: " -I",
|
|
linkDirCmd: "", # XXX: not supported yet
|
|
linkLibCmd: "", # XXX: not supported yet
|
|
debug: " -g ",
|
|
pic: "",
|
|
asmStmtFrmt: "asm($1);$n",
|
|
structStmtFmt: "$1 $2",
|
|
produceAsm: gnuAsmListing,
|
|
cppXsupport: "",
|
|
props: {hasSwitchRange, hasComputedGoto, hasGnuAsm})
|
|
|
|
# Your C Compiler
|
|
compiler envcc:
|
|
result = (
|
|
name: "env",
|
|
objExt: "o",
|
|
optSpeed: " -O3 ",
|
|
optSize: " -O1 ",
|
|
compilerExe: "",
|
|
cppCompiler: "",
|
|
compileTmpl: "-c $ccenvflags $options $include -o $objfile $file",
|
|
buildGui: "",
|
|
buildDll: " -shared ",
|
|
buildLib: "", # XXX: not supported yet
|
|
linkerExe: "",
|
|
linkTmpl: "-o $exefile $buildgui $builddll $objfiles $options",
|
|
includeCmd: " -I",
|
|
linkDirCmd: "", # XXX: not supported yet
|
|
linkLibCmd: "", # XXX: not supported yet
|
|
debug: "",
|
|
pic: "",
|
|
asmStmtFrmt: "__asm{$n$1$n}$n",
|
|
structStmtFmt: "$1 $2",
|
|
produceAsm: "",
|
|
cppXsupport: "",
|
|
props: {hasGnuAsm})
|
|
|
|
const
|
|
CC*: array[succ(low(TSystemCC))..high(TSystemCC), TInfoCC] = [
|
|
gcc(),
|
|
nintendoSwitchGCC(),
|
|
llvmGcc(),
|
|
clang(),
|
|
bcc(),
|
|
vcc(),
|
|
tcc(),
|
|
envcc(),
|
|
icl(),
|
|
icc(),
|
|
clangcl()]
|
|
|
|
hExt* = ".h"
|
|
|
|
template writePrettyCmdsStderr(cmd) =
|
|
if cmd.len > 0:
|
|
flushDot(conf)
|
|
stderr.writeLine(cmd)
|
|
|
|
proc nameToCC*(name: string): TSystemCC =
|
|
## Returns the kind of compiler referred to by `name`, or ccNone
|
|
## if the name doesn't refer to any known compiler.
|
|
for i in succ(ccNone)..high(TSystemCC):
|
|
if cmpIgnoreStyle(name, CC[i].name) == 0:
|
|
return i
|
|
result = ccNone
|
|
|
|
proc listCCnames(): string =
|
|
result = ""
|
|
for i in succ(ccNone)..high(TSystemCC):
|
|
if i > succ(ccNone): result.add ", "
|
|
result.add CC[i].name
|
|
|
|
proc isVSCompatible*(conf: ConfigRef): bool =
|
|
return conf.cCompiler == ccVcc or
|
|
conf.cCompiler == ccClangCl or
|
|
(conf.cCompiler == ccIcl and conf.target.hostOS in osDos..osWindows)
|
|
|
|
proc getConfigVar(conf: ConfigRef; c: TSystemCC, suffix: string): string =
|
|
# use ``cpu.os.cc`` for cross compilation, unless ``--compileOnly`` is given
|
|
# for niminst support
|
|
var fullSuffix = suffix
|
|
case conf.backend
|
|
of backendCpp, backendJs, backendObjc: fullSuffix = "." & $conf.backend & suffix
|
|
of backendC: discard
|
|
of backendInvalid:
|
|
# during parsing of cfg files; we don't know the backend yet, no point in
|
|
# guessing wrong thing
|
|
return ""
|
|
|
|
if (conf.target.hostOS != conf.target.targetOS or conf.target.hostCPU != conf.target.targetCPU) and
|
|
optCompileOnly notin conf.globalOptions:
|
|
let fullCCname = platform.CPU[conf.target.targetCPU].name & '.' &
|
|
platform.OS[conf.target.targetOS].name & '.' &
|
|
CC[c].name & fullSuffix
|
|
result = getConfigVar(conf, fullCCname)
|
|
if result.len == 0:
|
|
# not overridden for this cross compilation setting?
|
|
result = getConfigVar(conf, CC[c].name & fullSuffix)
|
|
else:
|
|
result = getConfigVar(conf, CC[c].name & fullSuffix)
|
|
|
|
proc setCC*(conf: ConfigRef; ccname: string; info: TLineInfo) =
|
|
conf.cCompiler = nameToCC(ccname)
|
|
if conf.cCompiler == ccNone:
|
|
localError(conf, info, "unknown C compiler: '$1'. Available options are: $2" % [ccname, listCCnames()])
|
|
conf.compileOptions = getConfigVar(conf, conf.cCompiler, ".options.always")
|
|
conf.linkOptions = ""
|
|
conf.cCompilerPath = getConfigVar(conf, conf.cCompiler, ".path")
|
|
for c in CC: undefSymbol(conf.symbols, c.name)
|
|
defineSymbol(conf.symbols, CC[conf.cCompiler].name)
|
|
|
|
proc addOpt(dest: var string, src: string) =
|
|
if dest.len == 0 or dest[^1] != ' ': dest.add(" ")
|
|
dest.add(src)
|
|
|
|
proc addLinkOption*(conf: ConfigRef; option: string) =
|
|
addOpt(conf.linkOptions, option)
|
|
|
|
proc addCompileOption*(conf: ConfigRef; option: string) =
|
|
if strutils.find(conf.compileOptions, option, 0) < 0:
|
|
addOpt(conf.compileOptions, option)
|
|
|
|
proc addLinkOptionCmd*(conf: ConfigRef; option: string) =
|
|
addOpt(conf.linkOptionsCmd, option)
|
|
|
|
proc addCompileOptionCmd*(conf: ConfigRef; option: string) =
|
|
conf.compileOptionsCmd.add(option)
|
|
|
|
proc initVars*(conf: ConfigRef) =
|
|
# we need to define the symbol here, because ``CC`` may have never been set!
|
|
for c in CC: undefSymbol(conf.symbols, c.name)
|
|
defineSymbol(conf.symbols, CC[conf.cCompiler].name)
|
|
addCompileOption(conf, getConfigVar(conf, conf.cCompiler, ".options.always"))
|
|
#addLinkOption(getConfigVar(cCompiler, ".options.linker"))
|
|
if conf.cCompilerPath.len == 0:
|
|
conf.cCompilerPath = getConfigVar(conf, conf.cCompiler, ".path")
|
|
|
|
proc completeCfilePath*(conf: ConfigRef; cfile: AbsoluteFile,
|
|
createSubDir: bool = true): AbsoluteFile =
|
|
## Generate the absolute file path to the generated modules.
|
|
result = completeGeneratedFilePath(conf, cfile, createSubDir)
|
|
|
|
proc toObjFile*(conf: ConfigRef; filename: AbsoluteFile): AbsoluteFile =
|
|
# Object file for compilation
|
|
result = AbsoluteFile(filename.string & "." & CC[conf.cCompiler].objExt)
|
|
|
|
proc addFileToCompile*(conf: ConfigRef; cf: Cfile) =
|
|
conf.toCompile.add(cf)
|
|
|
|
proc addLocalCompileOption*(conf: ConfigRef; option: string; nimfile: AbsoluteFile) =
|
|
let key = completeCfilePath(conf, mangleModuleName(conf, nimfile).AbsoluteFile).string
|
|
var value = conf.cfileSpecificOptions.getOrDefault(key)
|
|
if strutils.find(value, option, 0) < 0:
|
|
addOpt(value, option)
|
|
conf.cfileSpecificOptions[key] = value
|
|
|
|
proc resetCompilationLists*(conf: ConfigRef) =
|
|
conf.toCompile.setLen 0
|
|
## XXX: we must associate these with their originating module
|
|
# when the module is loaded/unloaded it adds/removes its items
|
|
# That's because we still need to hash check the external files
|
|
# Maybe we can do that in checkDep on the other hand?
|
|
conf.externalToLink.setLen 0
|
|
|
|
proc addExternalFileToLink*(conf: ConfigRef; filename: AbsoluteFile) =
|
|
conf.externalToLink.insert(filename.string, 0)
|
|
|
|
proc execWithEcho(conf: ConfigRef; cmd: string, msg = hintExecuting): int =
|
|
rawMessage(conf, msg, if msg == hintLinking and not(optListCmd in conf.globalOptions or conf.verbosity > 1): "" else: cmd)
|
|
result = execCmd(cmd)
|
|
|
|
proc execExternalProgram*(conf: ConfigRef; cmd: string, msg = hintExecuting) =
|
|
if execWithEcho(conf, cmd, msg) != 0:
|
|
rawMessage(conf, errGenerated, "execution of an external program failed: '$1'" %
|
|
cmd)
|
|
|
|
proc generateScript(conf: ConfigRef; script: Rope) =
|
|
let (_, name, _) = splitFile(conf.outFile.string)
|
|
let filename = getNimcacheDir(conf) / RelativeFile(addFileExt("compile_" & name,
|
|
platform.OS[conf.target.targetOS].scriptExt))
|
|
if not writeRope(script, filename):
|
|
rawMessage(conf, errGenerated, "could not write to file: " & filename.string)
|
|
|
|
proc getOptSpeed(conf: ConfigRef; c: TSystemCC): string =
|
|
result = getConfigVar(conf, c, ".options.speed")
|
|
if result == "":
|
|
result = CC[c].optSpeed # use default settings from this file
|
|
|
|
proc getDebug(conf: ConfigRef; c: TSystemCC): string =
|
|
result = getConfigVar(conf, c, ".options.debug")
|
|
if result == "":
|
|
result = CC[c].debug # use default settings from this file
|
|
|
|
proc getOptSize(conf: ConfigRef; c: TSystemCC): string =
|
|
result = getConfigVar(conf, c, ".options.size")
|
|
if result == "":
|
|
result = CC[c].optSize # use default settings from this file
|
|
|
|
proc noAbsolutePaths(conf: ConfigRef): bool {.inline.} =
|
|
# We used to check current OS != specified OS, but this makes no sense
|
|
# really: Cross compilation from Linux to Linux for example is entirely
|
|
# reasonable.
|
|
# `optGenMapping` is included here for niminst.
|
|
# We use absolute paths for vcc / cl, see issue #19883.
|
|
let options =
|
|
if conf.cCompiler == ccVcc:
|
|
{optGenMapping}
|
|
else:
|
|
{optGenScript, optGenMapping}
|
|
result = conf.globalOptions * options != {}
|
|
|
|
proc cFileSpecificOptions(conf: ConfigRef; nimname, fullNimFile: string): string =
|
|
result = conf.compileOptions
|
|
|
|
for option in conf.compileOptionsCmd:
|
|
if strutils.find(result, option, 0) < 0:
|
|
addOpt(result, option)
|
|
|
|
if optCDebug in conf.globalOptions:
|
|
let key = nimname & ".debug"
|
|
if existsConfigVar(conf, key): addOpt(result, getConfigVar(conf, key))
|
|
else: addOpt(result, getDebug(conf, conf.cCompiler))
|
|
if optOptimizeSpeed in conf.options:
|
|
let key = nimname & ".speed"
|
|
if existsConfigVar(conf, key): addOpt(result, getConfigVar(conf, key))
|
|
else: addOpt(result, getOptSpeed(conf, conf.cCompiler))
|
|
elif optOptimizeSize in conf.options:
|
|
let key = nimname & ".size"
|
|
if existsConfigVar(conf, key): addOpt(result, getConfigVar(conf, key))
|
|
else: addOpt(result, getOptSize(conf, conf.cCompiler))
|
|
let key = nimname & ".always"
|
|
if existsConfigVar(conf, key): addOpt(result, getConfigVar(conf, key))
|
|
|
|
addOpt(result, conf.cfileSpecificOptions.getOrDefault(fullNimFile))
|
|
|
|
proc getCompileOptions(conf: ConfigRef): string =
|
|
result = cFileSpecificOptions(conf, "__dummy__", "__dummy__")
|
|
|
|
proc vccplatform(conf: ConfigRef): string =
|
|
# VCC specific but preferable over the config hacks people
|
|
# had to do before, see #11306
|
|
if conf.cCompiler == ccVcc:
|
|
let exe = getConfigVar(conf, conf.cCompiler, ".exe")
|
|
if "vccexe.exe" == extractFilename(exe):
|
|
result = case conf.target.targetCPU
|
|
of cpuI386: " --platform:x86"
|
|
of cpuArm: " --platform:arm"
|
|
of cpuAmd64: " --platform:amd64"
|
|
else: ""
|
|
|
|
proc getLinkOptions(conf: ConfigRef): string =
|
|
result = conf.linkOptions & " " & conf.linkOptionsCmd & " "
|
|
for linkedLib in items(conf.cLinkedLibs):
|
|
result.add(CC[conf.cCompiler].linkLibCmd % linkedLib.quoteShell)
|
|
for libDir in items(conf.cLibs):
|
|
result.add(join([CC[conf.cCompiler].linkDirCmd, libDir.quoteShell]))
|
|
|
|
proc needsExeExt(conf: ConfigRef): bool {.inline.} =
|
|
result = (optGenScript in conf.globalOptions and conf.target.targetOS == osWindows) or
|
|
(conf.target.hostOS == osWindows)
|
|
|
|
proc useCpp(conf: ConfigRef; cfile: AbsoluteFile): bool =
|
|
# List of possible file extensions taken from gcc
|
|
for ext in [".C", ".cc", ".cpp", ".CPP", ".c++", ".cp", ".cxx"]:
|
|
if cfile.string.endsWith(ext): return true
|
|
false
|
|
|
|
proc envFlags(conf: ConfigRef): string =
|
|
result = if conf.backend == backendCpp:
|
|
getEnv("CXXFLAGS")
|
|
else:
|
|
getEnv("CFLAGS")
|
|
|
|
proc getCompilerExe(conf: ConfigRef; compiler: TSystemCC; isCpp: bool): string =
|
|
if compiler == ccEnv:
|
|
result = if isCpp:
|
|
getEnv("CXX")
|
|
else:
|
|
getEnv("CC")
|
|
else:
|
|
result = if isCpp:
|
|
CC[compiler].cppCompiler
|
|
else:
|
|
CC[compiler].compilerExe
|
|
if result.len == 0:
|
|
rawMessage(conf, errGenerated,
|
|
"Compiler '$1' doesn't support the requested target" %
|
|
CC[compiler].name)
|
|
|
|
proc ccHasSaneOverflow*(conf: ConfigRef): bool =
|
|
if conf.cCompiler == ccGcc:
|
|
result = false # assume an old or crappy GCC
|
|
var exe = getConfigVar(conf, conf.cCompiler, ".exe")
|
|
if exe.len == 0: exe = CC[conf.cCompiler].compilerExe
|
|
# NOTE: should we need the full version, use -dumpfullversion
|
|
let (s, exitCode) = try: execCmdEx(exe & " -dumpversion") except: ("", 1)
|
|
if exitCode == 0:
|
|
var major: int
|
|
discard parseInt(s, major)
|
|
result = major >= 5
|
|
else:
|
|
result = conf.cCompiler == ccCLang
|
|
|
|
proc getLinkerExe(conf: ConfigRef; compiler: TSystemCC): string =
|
|
result = if CC[compiler].linkerExe.len > 0: CC[compiler].linkerExe
|
|
else: getCompilerExe(conf, compiler, optMixedMode in conf.globalOptions or conf.backend == backendCpp)
|
|
|
|
proc getCompileCFileCmd*(conf: ConfigRef; cfile: Cfile,
|
|
isMainFile = false; produceOutput = false): string =
|
|
let
|
|
c = conf.cCompiler
|
|
isCpp = useCpp(conf, cfile.cname)
|
|
# We produce files like module.nim.cpp, so the absolute Nim filename is not
|
|
# cfile.name but `cfile.cname.changeFileExt("")`:
|
|
var options = cFileSpecificOptions(conf, cfile.nimname, cfile.cname.changeFileExt("").string)
|
|
if isCpp:
|
|
# needs to be prepended so that --passc:-std=c++17 can override default.
|
|
# we could avoid allocation by making cFileSpecificOptions inplace
|
|
options = CC[c].cppXsupport & ' ' & options
|
|
# If any C++ file was compiled, we need to use C++ driver for linking as well
|
|
incl conf.globalOptions, optMixedMode
|
|
|
|
var exe = getConfigVar(conf, c, ".exe")
|
|
if exe.len == 0: exe = getCompilerExe(conf, c, isCpp)
|
|
|
|
if needsExeExt(conf): exe = addFileExt(exe, "exe")
|
|
if (optGenDynLib in conf.globalOptions or (conf.hcrOn and not isMainFile)) and
|
|
ospNeedsPIC in platform.OS[conf.target.targetOS].props:
|
|
options.add(' ' & CC[c].pic)
|
|
|
|
if cfile.customArgs != "":
|
|
options.add ' '
|
|
options.add cfile.customArgs
|
|
|
|
var compilePattern: string
|
|
# compute include paths:
|
|
var includeCmd = CC[c].includeCmd & quoteShell(conf.libpath)
|
|
if not noAbsolutePaths(conf):
|
|
for includeDir in items(conf.cIncludes):
|
|
includeCmd.add(join([CC[c].includeCmd, includeDir.quoteShell]))
|
|
|
|
compilePattern = joinPath(conf.cCompilerPath, exe)
|
|
else:
|
|
compilePattern = getCompilerExe(conf, c, isCpp)
|
|
|
|
includeCmd.add(join([CC[c].includeCmd, quoteShell(conf.projectPath.string)]))
|
|
|
|
let cf = if noAbsolutePaths(conf): AbsoluteFile extractFilename(cfile.cname.string)
|
|
else: cfile.cname
|
|
|
|
let objfile =
|
|
if cfile.obj.isEmpty:
|
|
if CfileFlag.External notin cfile.flags or noAbsolutePaths(conf):
|
|
toObjFile(conf, cf).string
|
|
else:
|
|
completeCfilePath(conf, toObjFile(conf, cf)).string
|
|
elif noAbsolutePaths(conf):
|
|
extractFilename(cfile.obj.string)
|
|
else:
|
|
cfile.obj.string
|
|
|
|
# D files are required by nintendo switch libs for
|
|
# compilation. They are basically a list of all includes.
|
|
let dfile = objfile.changeFileExt(".d").quoteShell
|
|
|
|
let cfsh = quoteShell(cf)
|
|
result = quoteShell(compilePattern % [
|
|
"dfile", dfile,
|
|
"file", cfsh, "objfile", quoteShell(objfile), "options", options,
|
|
"include", includeCmd, "nim", getPrefixDir(conf).string,
|
|
"lib", conf.libpath.string,
|
|
"ccenvflags", envFlags(conf)])
|
|
|
|
if optProduceAsm in conf.globalOptions:
|
|
if CC[conf.cCompiler].produceAsm.len > 0:
|
|
let asmfile = objfile.changeFileExt(".asm").quoteShell
|
|
addOpt(result, CC[conf.cCompiler].produceAsm % ["asmfile", asmfile])
|
|
if produceOutput:
|
|
rawMessage(conf, hintUserRaw, "Produced assembler here: " & asmfile)
|
|
else:
|
|
if produceOutput:
|
|
rawMessage(conf, hintUserRaw, "Couldn't produce assembler listing " &
|
|
"for the selected C compiler: " & CC[conf.cCompiler].name)
|
|
|
|
result.add(' ')
|
|
result.addf(CC[c].compileTmpl, [
|
|
"dfile", dfile,
|
|
"file", cfsh, "objfile", quoteShell(objfile),
|
|
"options", options, "include", includeCmd,
|
|
"nim", quoteShell(getPrefixDir(conf)),
|
|
"lib", quoteShell(conf.libpath),
|
|
"vccplatform", vccplatform(conf),
|
|
"ccenvflags", envFlags(conf)])
|
|
|
|
proc footprint(conf: ConfigRef; cfile: Cfile): SecureHash =
|
|
result = secureHash(
|
|
$secureHashFile(cfile.cname.string) &
|
|
platform.OS[conf.target.targetOS].name &
|
|
platform.CPU[conf.target.targetCPU].name &
|
|
extccomp.CC[conf.cCompiler].name &
|
|
getCompileCFileCmd(conf, cfile))
|
|
|
|
proc externalFileChanged(conf: ConfigRef; cfile: Cfile): bool =
|
|
if conf.backend == backendJs: return false # pre-existing behavior, but not sure it's good
|
|
|
|
let hashFile = toGeneratedFile(conf, conf.mangleModuleName(cfile.cname).AbsoluteFile, "sha1")
|
|
let currentHash = footprint(conf, cfile)
|
|
var f: File
|
|
if open(f, hashFile.string, fmRead):
|
|
let oldHash = parseSecureHash(f.readLine())
|
|
close(f)
|
|
result = oldHash != currentHash
|
|
else:
|
|
result = true
|
|
if result:
|
|
if open(f, hashFile.string, fmWrite):
|
|
f.writeLine($currentHash)
|
|
close(f)
|
|
|
|
proc addExternalFileToCompile*(conf: ConfigRef; c: var Cfile) =
|
|
# we want to generate the hash file unconditionally
|
|
let extFileChanged = externalFileChanged(conf, c)
|
|
if optForceFullMake notin conf.globalOptions and fileExists(c.obj) and
|
|
not extFileChanged:
|
|
c.flags.incl CfileFlag.Cached
|
|
else:
|
|
# make sure Nim keeps recompiling the external file on reruns
|
|
# if compilation is not successful
|
|
discard tryRemoveFile(c.obj.string)
|
|
conf.toCompile.add(c)
|
|
|
|
proc addExternalFileToCompile*(conf: ConfigRef; filename: AbsoluteFile) =
|
|
var c = Cfile(nimname: splitFile(filename).name, cname: filename,
|
|
obj: toObjFile(conf, completeCfilePath(conf, filename, false)),
|
|
flags: {CfileFlag.External})
|
|
addExternalFileToCompile(conf, c)
|
|
|
|
proc getLinkCmd(conf: ConfigRef; output: AbsoluteFile,
|
|
objfiles: string, isDllBuild: bool, removeStaticFile: bool): string =
|
|
if optGenStaticLib in conf.globalOptions:
|
|
if removeStaticFile:
|
|
removeFile output # fixes: bug #16947
|
|
result = CC[conf.cCompiler].buildLib % ["libfile", quoteShell(output),
|
|
"objfiles", objfiles]
|
|
else:
|
|
var linkerExe = getConfigVar(conf, conf.cCompiler, ".linkerexe")
|
|
if linkerExe.len == 0: linkerExe = getLinkerExe(conf, conf.cCompiler)
|
|
# bug #6452: We must not use ``quoteShell`` here for ``linkerExe``
|
|
if needsExeExt(conf): linkerExe = addFileExt(linkerExe, "exe")
|
|
if noAbsolutePaths(conf): result = linkerExe
|
|
else: result = joinPath(conf.cCompilerPath, linkerExe)
|
|
let buildgui = if optGenGuiApp in conf.globalOptions and conf.target.targetOS == osWindows:
|
|
CC[conf.cCompiler].buildGui
|
|
else:
|
|
""
|
|
let builddll = if isDllBuild: CC[conf.cCompiler].buildDll else: ""
|
|
let exefile = quoteShell(output)
|
|
|
|
when false:
|
|
if optCDebug in conf.globalOptions:
|
|
writeDebugInfo(exefile.changeFileExt("ndb"))
|
|
|
|
# Map files are required by Nintendo Switch compilation. They are a list
|
|
# of all function calls in the library and where they come from.
|
|
let mapfile = quoteShell(getNimcacheDir(conf) / RelativeFile(splitFile(output).name & ".map"))
|
|
|
|
let linkOptions = getLinkOptions(conf) & " " &
|
|
getConfigVar(conf, conf.cCompiler, ".options.linker")
|
|
var linkTmpl = getConfigVar(conf, conf.cCompiler, ".linkTmpl")
|
|
if linkTmpl.len == 0:
|
|
linkTmpl = CC[conf.cCompiler].linkTmpl
|
|
result = quoteShell(result % ["builddll", builddll,
|
|
"mapfile", mapfile,
|
|
"buildgui", buildgui, "options", linkOptions, "objfiles", objfiles,
|
|
"exefile", exefile, "nim", getPrefixDir(conf).string, "lib", conf.libpath.string])
|
|
result.add ' '
|
|
result.addf(linkTmpl, ["builddll", builddll,
|
|
"mapfile", mapfile,
|
|
"buildgui", buildgui, "options", linkOptions,
|
|
"objfiles", objfiles, "exefile", exefile,
|
|
"nim", quoteShell(getPrefixDir(conf)),
|
|
"lib", quoteShell(conf.libpath),
|
|
"vccplatform", vccplatform(conf)])
|
|
# On windows the debug information for binaries is emitted in a separate .pdb
|
|
# file and the binaries (.dll and .exe) contain a full path to that .pdb file.
|
|
# This is a problem for hot code reloading because even when we copy the .dll
|
|
# and load the copy so the build process may overwrite the original .dll on
|
|
# the disk (windows locks the files of running binaries) the copy still points
|
|
# to the original .pdb (and a simple copy of the .pdb won't help). This is a
|
|
# problem when a debugger is attached to the program we are hot-reloading.
|
|
# This problem is nonexistent on Unix since there by default debug symbols
|
|
# are embedded in the binaries so loading a copy of a .so will be fine. There
|
|
# is the '/Z7' flag for the MSVC compiler to embed the debug info of source
|
|
# files into their respective .obj files but the linker still produces a .pdb
|
|
# when a final .dll or .exe is linked so the debug info isn't embedded.
|
|
# There is also the issue that even when a .dll is unloaded the debugger
|
|
# still keeps the .pdb for that .dll locked. This is a major problem and
|
|
# because of this we cannot just alternate between 2 names for a .pdb file
|
|
# when rebuilding a .dll - instead we need to accumulate differently named
|
|
# .pdb files in the nimcache folder - this is the easiest and most reliable
|
|
# way of being able to debug and rebuild the program at the same time. This
|
|
# is accomplished using the /PDB:<filename> flag (there also exists the
|
|
# /PDBALTPATH:<filename> flag). The only downside is that the .pdb files are
|
|
# at least 300kb big (when linking statically to the runtime - or else 5mb+)
|
|
# and will quickly accumulate. There is a hacky solution: we could try to
|
|
# delete all .pdb files with a pattern and swallow exceptions.
|
|
#
|
|
# links about .pdb files and hot code reloading:
|
|
# https://ourmachinery.com/post/dll-hot-reloading-in-theory-and-practice/
|
|
# https://ourmachinery.com/post/little-machines-working-together-part-2/
|
|
# https://github.com/fungos/cr
|
|
# https://fungos.github.io/blog/2017/11/20/cr.h-a-simple-c-hot-reload-header-only-library/
|
|
# on forcing the debugger to unlock a locked .pdb of an unloaded library:
|
|
# https://blog.molecular-matters.com/2017/05/09/deleting-pdb-files-locked-by-visual-studio/
|
|
# and a bit about the .pdb format in case that is ever needed:
|
|
# https://github.com/crosire/blink
|
|
# http://www.debuginfo.com/articles/debuginfomatch.html#pdbfiles
|
|
if conf.hcrOn and isVSCompatible(conf):
|
|
let t = now()
|
|
let pdb = output.string & "." & format(t, "MMMM-yyyy-HH-mm-") & $t.nanosecond & ".pdb"
|
|
result.add " /link /PDB:" & pdb
|
|
if optCDebug in conf.globalOptions and conf.cCompiler == ccVcc:
|
|
result.add " /Zi /FS /Od"
|
|
|
|
template getLinkCmd(conf: ConfigRef; output: AbsoluteFile, objfiles: string,
|
|
removeStaticFile = false): string =
|
|
getLinkCmd(conf, output, objfiles, optGenDynLib in conf.globalOptions, removeStaticFile)
|
|
|
|
template tryExceptOSErrorMessage(conf: ConfigRef; errorPrefix: string = "", body: untyped) =
|
|
try:
|
|
body
|
|
except OSError:
|
|
let ose = (ref OSError)(getCurrentException())
|
|
if errorPrefix.len > 0:
|
|
rawMessage(conf, errGenerated, errorPrefix & " " & ose.msg & " " & $ose.errorCode)
|
|
else:
|
|
rawMessage(conf, errGenerated, "execution of an external program failed: '$1'" %
|
|
(ose.msg & " " & $ose.errorCode))
|
|
raise
|
|
|
|
proc getExtraCmds(conf: ConfigRef; output: AbsoluteFile): seq[string] =
|
|
when defined(macosx):
|
|
if optCDebug in conf.globalOptions and optGenStaticLib notin conf.globalOptions:
|
|
# if needed, add an option to skip or override location
|
|
result.add "dsymutil " & $(output).quoteShell
|
|
|
|
proc execLinkCmd(conf: ConfigRef; linkCmd: string) =
|
|
tryExceptOSErrorMessage(conf, "invocation of external linker program failed."):
|
|
execExternalProgram(conf, linkCmd, hintLinking)
|
|
|
|
proc execCmdsInParallel(conf: ConfigRef; cmds: seq[string]; prettyCb: proc (idx: int)) =
|
|
let runCb = proc (idx: int, p: Process) =
|
|
let exitCode = p.peekExitCode
|
|
if exitCode != 0:
|
|
rawMessage(conf, errGenerated, "execution of an external compiler program '" &
|
|
cmds[idx] & "' failed with exit code: " & $exitCode & "\n\n")
|
|
if conf.numberOfProcessors == 0: conf.numberOfProcessors = countProcessors()
|
|
var res = 0
|
|
if conf.numberOfProcessors <= 1:
|
|
for i in 0..high(cmds):
|
|
tryExceptOSErrorMessage(conf, "invocation of external compiler program failed."):
|
|
res = execWithEcho(conf, cmds[i])
|
|
if res != 0:
|
|
rawMessage(conf, errGenerated, "execution of an external program failed: '$1'" %
|
|
cmds[i])
|
|
else:
|
|
tryExceptOSErrorMessage(conf, "invocation of external compiler program failed."):
|
|
res = execProcesses(cmds, {poStdErrToStdOut, poUsePath, poParentStreams},
|
|
conf.numberOfProcessors, prettyCb, afterRunEvent=runCb)
|
|
if res != 0:
|
|
if conf.numberOfProcessors <= 1:
|
|
rawMessage(conf, errGenerated, "execution of an external program failed: '$1'" %
|
|
cmds.join())
|
|
|
|
proc linkViaResponseFile(conf: ConfigRef; cmd: string) =
|
|
# Extracting the linker.exe here is a bit hacky but the best solution
|
|
# given ``buildLib``'s design.
|
|
var i = 0
|
|
var last = 0
|
|
if cmd.len > 0 and cmd[0] == '"':
|
|
inc i
|
|
while i < cmd.len and cmd[i] != '"': inc i
|
|
last = i
|
|
inc i
|
|
else:
|
|
while i < cmd.len and cmd[i] != ' ': inc i
|
|
last = i
|
|
while i < cmd.len and cmd[i] == ' ': inc i
|
|
let linkerArgs = conf.projectName & "_" & "linkerArgs.txt"
|
|
let args = cmd.substr(i)
|
|
# GCC's response files don't support backslashes. Junk.
|
|
if conf.cCompiler == ccGcc or conf.cCompiler == ccCLang:
|
|
writeFile(linkerArgs, args.replace('\\', '/'))
|
|
else:
|
|
writeFile(linkerArgs, args)
|
|
try:
|
|
execLinkCmd(conf, cmd.substr(0, last) & " @" & linkerArgs)
|
|
finally:
|
|
removeFile(linkerArgs)
|
|
|
|
proc getObjFilePath(conf: ConfigRef, f: Cfile): string =
|
|
if noAbsolutePaths(conf): f.obj.extractFilename
|
|
else: f.obj.string
|
|
|
|
proc hcrLinkTargetName(conf: ConfigRef, objFile: string, isMain = false): AbsoluteFile =
|
|
let basename = splitFile(objFile).name
|
|
let targetName = if isMain: basename & ".exe"
|
|
else: platform.OS[conf.target.targetOS].dllFrmt % basename
|
|
result = conf.getNimcacheDir / RelativeFile(targetName)
|
|
|
|
proc displayProgressCC(conf: ConfigRef, path, compileCmd: string): string =
|
|
if conf.hasHint(hintCC):
|
|
if optListCmd in conf.globalOptions or conf.verbosity > 1:
|
|
result = MsgKindToStr[hintCC] % (demangleModuleName(path.splitFile.name) & ": " & compileCmd)
|
|
else:
|
|
result = MsgKindToStr[hintCC] % demangleModuleName(path.splitFile.name)
|
|
|
|
proc callCCompiler*(conf: ConfigRef) =
|
|
var
|
|
linkCmd: string
|
|
extraCmds: seq[string]
|
|
if conf.globalOptions * {optCompileOnly, optGenScript} == {optCompileOnly}:
|
|
return # speed up that call if only compiling and no script shall be
|
|
# generated
|
|
#var c = cCompiler
|
|
var script: Rope = nil
|
|
var cmds: TStringSeq
|
|
var prettyCmds: TStringSeq
|
|
let prettyCb = proc (idx: int) = writePrettyCmdsStderr(prettyCmds[idx])
|
|
|
|
for idx, it in conf.toCompile:
|
|
# call the C compiler for the .c file:
|
|
if CfileFlag.Cached in it.flags: continue
|
|
let compileCmd = getCompileCFileCmd(conf, it, idx == conf.toCompile.len - 1, produceOutput=true)
|
|
if optCompileOnly notin conf.globalOptions:
|
|
cmds.add(compileCmd)
|
|
prettyCmds.add displayProgressCC(conf, $it.cname, compileCmd)
|
|
if optGenScript in conf.globalOptions:
|
|
script.add(compileCmd)
|
|
script.add("\n")
|
|
|
|
if optCompileOnly notin conf.globalOptions:
|
|
execCmdsInParallel(conf, cmds, prettyCb)
|
|
if optNoLinking notin conf.globalOptions:
|
|
# call the linker:
|
|
var objfiles = ""
|
|
for it in conf.externalToLink:
|
|
let objFile = if noAbsolutePaths(conf): it.extractFilename else: it
|
|
objfiles.add(' ')
|
|
objfiles.add(quoteShell(
|
|
addFileExt(objFile, CC[conf.cCompiler].objExt)))
|
|
|
|
if conf.hcrOn: # lets assume that optCompileOnly isn't on
|
|
cmds = @[]
|
|
let mainFileIdx = conf.toCompile.len - 1
|
|
for idx, x in conf.toCompile:
|
|
# don't relink each of the many binaries (one for each source file) if the nim code is
|
|
# cached because that would take too much time for small changes - the only downside to
|
|
# this is that if an external-to-link file changes the final target wouldn't be relinked
|
|
if CfileFlag.Cached in x.flags: continue
|
|
# we pass each object file as if it is the project file - a .dll will be created for each such
|
|
# object file in the nimcache directory, and only in the case of the main project file will
|
|
# there be probably an executable (if the project is such) which will be copied out of the nimcache
|
|
let objFile = conf.getObjFilePath(x)
|
|
let buildDll = idx != mainFileIdx
|
|
let linkTarget = conf.hcrLinkTargetName(objFile, not buildDll)
|
|
cmds.add(getLinkCmd(conf, linkTarget, objfiles & " " & quoteShell(objFile), buildDll, removeStaticFile = true))
|
|
# try to remove all .pdb files for the current binary so they don't accumulate endlessly in the nimcache
|
|
# for more info check the comment inside of getLinkCmd() where the /PDB:<filename> MSVC flag is used
|
|
if isVSCompatible(conf):
|
|
for pdb in walkFiles(objFile & ".*.pdb"):
|
|
discard tryRemoveFile(pdb)
|
|
# execute link commands in parallel - output will be a bit different
|
|
# if it fails than that from execLinkCmd() but that doesn't matter
|
|
prettyCmds = map(prettyCmds, proc (curr: string): string = return curr.replace("CC", "Link"))
|
|
execCmdsInParallel(conf, cmds, prettyCb)
|
|
# only if not cached - copy the resulting main file from the nimcache folder to its originally intended destination
|
|
if CfileFlag.Cached notin conf.toCompile[mainFileIdx].flags:
|
|
let mainObjFile = getObjFilePath(conf, conf.toCompile[mainFileIdx])
|
|
let src = conf.hcrLinkTargetName(mainObjFile, true)
|
|
let dst = conf.prepareToWriteOutput
|
|
copyFileWithPermissions(src.string, dst.string)
|
|
else:
|
|
for x in conf.toCompile:
|
|
let objFile = if noAbsolutePaths(conf): x.obj.extractFilename else: x.obj.string
|
|
objfiles.add(' ')
|
|
objfiles.add(quoteShell(objFile))
|
|
let mainOutput = if optGenScript notin conf.globalOptions: conf.prepareToWriteOutput
|
|
else: AbsoluteFile(conf.outFile)
|
|
|
|
linkCmd = getLinkCmd(conf, mainOutput, objfiles, removeStaticFile = true)
|
|
extraCmds = getExtraCmds(conf, mainOutput)
|
|
if optCompileOnly notin conf.globalOptions:
|
|
const MaxCmdLen = when defined(windows): 8_000 else: 32_000
|
|
if linkCmd.len > MaxCmdLen:
|
|
# Windows's command line limit is about 8K (don't laugh...) so C compilers on
|
|
# Windows support a feature where the command line can be passed via ``@linkcmd``
|
|
# to them.
|
|
linkViaResponseFile(conf, linkCmd)
|
|
else:
|
|
execLinkCmd(conf, linkCmd)
|
|
for cmd in extraCmds:
|
|
execExternalProgram(conf, cmd, hintExecuting)
|
|
else:
|
|
linkCmd = ""
|
|
if optGenScript in conf.globalOptions:
|
|
script.add(linkCmd)
|
|
script.add("\n")
|
|
generateScript(conf, script)
|
|
|
|
template hashNimExe(): string = $secureHashFile(os.getAppFilename())
|
|
|
|
proc jsonBuildInstructionsFile*(conf: ConfigRef): AbsoluteFile =
|
|
# `outFile` is better than `projectName`, as it allows having different json
|
|
# files for a given source file compiled with different options; it also
|
|
# works out of the box with `hashMainCompilationParams`.
|
|
result = getNimcacheDir(conf) / conf.outFile.changeFileExt("json")
|
|
|
|
const cacheVersion = "D20210525T193831" # update when `BuildCache` spec changes
|
|
type BuildCache = object
|
|
cacheVersion: string
|
|
outputFile: string
|
|
compile: seq[(string, string)]
|
|
link: seq[string]
|
|
linkcmd: string
|
|
extraCmds: seq[string]
|
|
configFiles: seq[string] # the hash shouldn't be needed
|
|
stdinInput: bool
|
|
projectIsCmd: bool
|
|
cmdInput: string
|
|
currentDir: string
|
|
cmdline: string
|
|
depfiles: seq[(string, string)]
|
|
nimexe: string
|
|
|
|
proc writeJsonBuildInstructions*(conf: ConfigRef) =
|
|
var linkFiles = collect(for it in conf.externalToLink:
|
|
var it = it
|
|
if conf.noAbsolutePaths: it = it.extractFilename
|
|
it.addFileExt(CC[conf.cCompiler].objExt))
|
|
for it in conf.toCompile: linkFiles.add it.obj.string
|
|
var bcache = BuildCache(
|
|
cacheVersion: cacheVersion,
|
|
outputFile: conf.absOutFile.string,
|
|
compile: collect(for i, it in conf.toCompile:
|
|
if CfileFlag.Cached notin it.flags: (it.cname.string, getCompileCFileCmd(conf, it))),
|
|
link: linkFiles,
|
|
linkcmd: getLinkCmd(conf, conf.absOutFile, linkFiles.quoteShellCommand),
|
|
extraCmds: getExtraCmds(conf, conf.absOutFile),
|
|
stdinInput: conf.projectIsStdin,
|
|
projectIsCmd: conf.projectIsCmd,
|
|
cmdInput: conf.cmdInput,
|
|
configFiles: conf.configFiles.mapIt(it.string),
|
|
currentDir: getCurrentDir())
|
|
if optRun in conf.globalOptions or isDefined(conf, "nimBetterRun"):
|
|
bcache.cmdline = conf.commandLine
|
|
bcache.depfiles = collect(for it in conf.m.fileInfos:
|
|
let path = it.fullPath.string
|
|
if isAbsolute(path): # TODO: else?
|
|
(path, $secureHashFile(path)))
|
|
bcache.nimexe = hashNimExe()
|
|
conf.jsonBuildFile = conf.jsonBuildInstructionsFile
|
|
conf.jsonBuildFile.string.writeFile(bcache.toJson.pretty)
|
|
|
|
proc changeDetectedViaJsonBuildInstructions*(conf: ConfigRef; jsonFile: AbsoluteFile): bool =
|
|
if not fileExists(jsonFile) or not fileExists(conf.absOutFile): return true
|
|
var bcache: BuildCache
|
|
try: bcache.fromJson(jsonFile.string.parseFile)
|
|
except IOError, OSError, ValueError:
|
|
stderr.write "Warning: JSON processing failed for: $#\n" % jsonFile.string
|
|
return true
|
|
if bcache.currentDir != getCurrentDir() or # fixes bug #16271
|
|
bcache.configFiles != conf.configFiles.mapIt(it.string) or
|
|
bcache.cacheVersion != cacheVersion or bcache.outputFile != conf.absOutFile.string or
|
|
bcache.cmdline != conf.commandLine or bcache.nimexe != hashNimExe() or
|
|
bcache.projectIsCmd != conf.projectIsCmd or conf.cmdInput != bcache.cmdInput: return true
|
|
if bcache.stdinInput or conf.projectIsStdin: return true
|
|
# xxx optimize by returning false if stdin input was the same
|
|
for (file, hash) in bcache.depfiles:
|
|
if $secureHashFile(file) != hash: return true
|
|
|
|
proc runJsonBuildInstructions*(conf: ConfigRef; jsonFile: AbsoluteFile) =
|
|
var bcache: BuildCache
|
|
try: bcache.fromJson(jsonFile.string.parseFile)
|
|
except:
|
|
let e = getCurrentException()
|
|
conf.quitOrRaise "\ncaught exception:\n$#\nstacktrace:\n$#error evaluating JSON file: $#" %
|
|
[e.msg, e.getStackTrace(), jsonFile.string]
|
|
let output = bcache.outputFile
|
|
createDir output.parentDir
|
|
let outputCurrent = $conf.absOutFile
|
|
if output != outputCurrent or bcache.cacheVersion != cacheVersion:
|
|
globalError(conf, gCmdLineInfo,
|
|
"jsonscript command outputFile '$1' must match '$2' which was specified during --compileOnly, see \"outputFile\" entry in '$3' " %
|
|
[outputCurrent, output, jsonFile.string])
|
|
var cmds, prettyCmds: TStringSeq
|
|
let prettyCb = proc (idx: int) = writePrettyCmdsStderr(prettyCmds[idx])
|
|
for (name, cmd) in bcache.compile:
|
|
cmds.add cmd
|
|
prettyCmds.add displayProgressCC(conf, name, cmd)
|
|
execCmdsInParallel(conf, cmds, prettyCb)
|
|
execLinkCmd(conf, bcache.linkcmd)
|
|
for cmd in bcache.extraCmds: execExternalProgram(conf, cmd, hintExecuting)
|
|
|
|
proc genMappingFiles(conf: ConfigRef; list: CfileList): Rope =
|
|
for it in list:
|
|
result.addf("--file:r\"$1\"$N", [rope(it.cname.string)])
|
|
|
|
proc writeMapping*(conf: ConfigRef; symbolMapping: Rope) =
|
|
if optGenMapping notin conf.globalOptions: return
|
|
var code = rope("[C_Files]\n")
|
|
code.add(genMappingFiles(conf, conf.toCompile))
|
|
code.add("\n[C_Compiler]\nFlags=")
|
|
code.add(strutils.escape(getCompileOptions(conf)))
|
|
|
|
code.add("\n[Linker]\nFlags=")
|
|
code.add(strutils.escape(getLinkOptions(conf) & " " &
|
|
getConfigVar(conf, conf.cCompiler, ".options.linker")))
|
|
|
|
code.add("\n[Environment]\nlibpath=")
|
|
code.add(strutils.escape(conf.libpath.string))
|
|
|
|
code.addf("\n[Symbols]$n$1", [symbolMapping])
|
|
let filename = conf.projectPath / RelativeFile"mapping.txt"
|
|
if not writeRope(code, filename):
|
|
rawMessage(conf, errGenerated, "could not write to file: " & filename.string)
|