Add compiler configuration for Nintendo Switch and it's CPU

compiler/extccomp.nim

@@ -83,6 +83,31 @@ compiler gcc:
     props: {hasSwitchRange, hasComputedGoto, hasCpp, hasGcGuard, hasGnuAsm,
             hasAttribute})
 
+# GNU C and C++ Compiler
+compiler aarch64NoneElfGCC:
+  result = (
+    name: "switch_gcc",
+    objExt: "o",
+    optSpeed: " -O3 -ffast-math ",
+    optSize: " -Os -ffast-math ",
+    compilerExe: "aarch64-none-elf-gcc",
+    cppCompiler: "aarch64-none-elf-g++",
+    compileTmpl: "-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
+    props: {hasSwitchRange, hasComputedGoto, hasCpp, hasGcGuard, hasGnuAsm,
+            hasAttribute})
+
 # LLVM Frontend for GCC/G++
 compiler llvmGcc:
   result = gcc() # Uses settings from GCC
@@ -316,6 +341,7 @@ compiler ucc:
 const
   CC*: array[succ(low(TSystemCC))..high(TSystemCC), TInfoCC] = [
     gcc(),
+    aarch64NoneElfGCC(),
     llvmGcc(),
     clang(),
     lcc(),
@@ -556,14 +582,20 @@ proc getCompileCFileCmd*(conf: ConfigRef; cfile: Cfile): string =
     else:
       cfile.obj
 
+  # D files are required by nintendo switch libs for
+  # compilation. They are basically a list of all includes.
+  let dfile = objfile.replace(".o", ".d").quoteShell()
+
   objfile = quoteShell(objfile)
   cf = quoteShell(cf)
   result = quoteShell(compilePattern % [
+    "dfile", dfile,
     "file", cf, "objfile", objfile, "options", options,
     "include", includeCmd, "nim", getPrefixDir(conf),
     "nim", getPrefixDir(conf), "lib", conf.libpath])
   add(result, ' ')
   addf(result, CC[c].compileTmpl, [
+    "dfile", dfile,
     "file", cf, "objfile", objfile,
     "options", options, "include", includeCmd,
     "nim", quoteShell(getPrefixDir(conf)),
@@ -659,16 +691,24 @@ proc getLinkCmd(conf: ConfigRef; projectfile, objfiles: string): string =
       if optCDebug in conf.globalOptions:
         writeDebugInfo(exefile.changeFileExt("ndb"))
     exefile = quoteShell(exefile)
+
+    # Map files are required by Nintendo Switch compilation. They are a list
+    # of all function calls in the library and where they come from.
+    var mapfile = getNimcacheDir(conf) / splitFile(projectFile).name & ".map"
+    mapfile = quoteShell(mapfile)
+
     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), "lib", conf.libpath])
     result.add ' '
     addf(result, linkTmpl, ["builddll", builddll,
+        "mapfile", mapfile,
         "buildgui", buildgui, "options", linkOptions,
         "objfiles", objfiles, "exefile", exefile,
         "nim", quoteShell(getPrefixDir(conf)),

compiler/installer.ini

@@ -15,6 +15,7 @@ Platforms: """
   dragonfly: i386;amd64
   haiku: i386;amd64
   android: i386;arm;arm64
+  nintendoswitch: armv8a57
 """
 
 Authors: "Andreas Rumpf"

compiler/options.nim

@@ -124,7 +124,7 @@ type
     disabledSf, writeOnlySf, readOnlySf, v2Sf
 
   TSystemCC* = enum
-    ccNone, ccGcc, ccLLVM_Gcc, ccCLang, ccLcc, ccBcc, ccDmc, ccWcc, ccVcc,
+    ccNone, ccGcc, ccaarch64NoneElfGcc, ccLLVM_Gcc, ccCLang, ccLcc, ccBcc, ccDmc, ccWcc, ccVcc,
     ccTcc, ccPcc, ccUcc, ccIcl, ccIcc
 
   CfileFlag* {.pure.} = enum
@@ -356,6 +356,8 @@ proc isDefined*(conf: ConfigRef; symbol: string): bool =
     of "mswindows", "win32": result = conf.target.targetOS == osWindows
     of "macintosh": result = conf.target.targetOS in {osMacos, osMacosx}
     of "sunos": result = conf.target.targetOS == osSolaris
+    of "nintendoswitch":
+      result = conf.target.targetOS == osNintendoSwitch
     of "littleendian": result = CPU[conf.target.targetCPU].endian == platform.littleEndian
     of "bigendian": result = CPU[conf.target.targetCPU].endian == platform.bigEndian
     of "cpu8": result = CPU[conf.target.targetCPU].bit == 8

compiler/platform.nim

@@ -22,7 +22,7 @@ type
     osNone, osDos, osWindows, osOs2, osLinux, osMorphos, osSkyos, osSolaris,
     osIrix, osNetbsd, osFreebsd, osOpenbsd, osDragonfly, osAix, osPalmos, osQnx,
     osAmiga, osAtari, osNetware, osMacos, osMacosx, osHaiku, osAndroid, osVxworks
-    osGenode, osJS, osNimVM, osStandalone
+    osGenode, osJS, osNimVM, osStandalone, osNintendoSwitch
 
 type
   TInfoOSProp* = enum
@@ -168,7 +168,12 @@ const
      (name: "Standalone", parDir: "..", dllFrmt: "lib$1.so", altDirSep: "/",
       objExt: ".o", newLine: "\x0A", pathSep: ":", dirSep: "/",
       scriptExt: ".sh", curDir: ".", exeExt: "", extSep: ".",
-      props: {})]
+      props: {}),
+     (name: "NintendoSwitch", parDir: "..", dllFrmt: "lib$1.so", altDirSep: "/",
+      objExt: ".o", newLine: "\x0A", pathSep: ":", dirSep: "/",
+      scriptExt: ".sh", curDir: ".", exeExt: ".elf", extSep: ".",
+      props: {ospNeedsPIC, ospPosix}),
+     ]
 
 type
   TSystemCPU* = enum # Also add CPU for in initialization section and
@@ -176,7 +181,7 @@ type
     cpuNone, cpuI386, cpuM68k, cpuAlpha, cpuPowerpc, cpuPowerpc64,
     cpuPowerpc64el, cpuSparc, cpuVm, cpuIa64, cpuAmd64, cpuMips, cpuMipsel,
     cpuArm, cpuArm64, cpuJS, cpuNimVM, cpuAVR, cpuMSP430, cpuSparc64,
-    cpuMips64, cpuMips64el, cpuRiscV64
+    cpuMips64, cpuMips64el, cpuRiscV64, cpuArmv8A57
 
 type
   TEndian* = enum
@@ -208,7 +213,8 @@ const
     (name: "sparc64", intSize: 64, endian: bigEndian, floatSize: 64, bit: 64),
     (name: "mips64", intSize: 64, endian: bigEndian, floatSize: 64, bit: 64),
     (name: "mips64el", intSize: 64, endian: littleEndian, floatSize: 64, bit: 64),
-    (name: "riscv64", intSize: 64, endian: littleEndian, floatSize: 64, bit: 64)]
+    (name: "riscv64", intSize: 64, endian: littleEndian, floatSize: 64, bit: 64),
+    (name: "armv8a57", intSize: 64, endian: bigEndian, floatSize: 64, bit: 64)]
 
 type
   Target* = object