Add s390x CPU support

Author: neuschaefer

compiler/platform.nim

@@ -210,8 +210,8 @@ type
     cpuNone, cpuI386, cpuM68k, cpuAlpha, cpuPowerpc, cpuPowerpc64,
     cpuPowerpc64el, cpuSparc, cpuVm, cpuHppa, cpuIa64, cpuAmd64, cpuMips,
     cpuMipsel, cpuArm, cpuArm64, cpuJS, cpuNimVM, cpuAVR, cpuMSP430,
-    cpuSparc64, cpuMips64, cpuMips64el, cpuRiscV32, cpuRiscV64, cpuEsp, cpuWasm32,
-    cpuE2k, cpuLoongArch64
+    cpuSparc64, cpuS390x, cpuMips64, cpuMips64el, cpuRiscV32, cpuRiscV64,
+    cpuEsp, cpuWasm32, cpuE2k, cpuLoongArch64
 
 type
   TInfoCPU* = tuple[name: string, intSize: int, endian: Endianness,
@@ -241,6 +241,7 @@ const
     (name: "avr", intSize: 16, endian: littleEndian, floatSize: 32, bit: 16),
     (name: "msp430", intSize: 16, endian: littleEndian, floatSize: 32, bit: 16),
     (name: "sparc64", intSize: 64, endian: bigEndian, floatSize: 64, bit: 64),
+    (name: "s390x", 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: "riscv32", intSize: 32, endian: littleEndian, floatSize: 64, bit: 32),

lib/system.nim

@@ -1068,7 +1068,7 @@ const
     ##
     ## Possible values:
     ## `"i386"`, `"alpha"`, `"powerpc"`, `"powerpc64"`, `"powerpc64el"`,
-    ## `"sparc"`, `"amd64"`, `"mips"`, `"mipsel"`, `"arm"`, `"arm64"`,
+    ## `"sparc"`, `"s390x"`, `"amd64"`, `"mips"`, `"mipsel"`, `"arm"`, `"arm64"`,
     ## `"mips64"`, `"mips64el"`, `"riscv32"`, `"riscv64"`, `"loongarch64"`.
 
   seqShallowFlag = low(int)

lib/system/platforms.nim

@@ -23,6 +23,7 @@ type
     powerpc64el,               ## Little Endian 64 bit PowerPC
     sparc,                     ## Sparc based processor
     sparc64,                   ## 64-bit Sparc based processor
+    s390x,                     ## IBM System z
     hppa,                      ## HP PA-RISC
     ia64,                      ## Intel Itanium
     amd64,                     ## x86_64 (AMD64); 64 bit x86 compatible CPU
@@ -83,6 +84,7 @@ const
                elif defined(powerpc64el): CpuPlatform.powerpc64el
                elif defined(sparc): CpuPlatform.sparc
                elif defined(sparc64): CpuPlatform.sparc64
+               elif defined(s390x): CpuPlatform.s390x
                elif defined(hppa): CpuPlatform.hppa
                elif defined(ia64): CpuPlatform.ia64
                elif defined(amd64): CpuPlatform.amd64

tools/nim.zsh-completion

@@ -78,7 +78,7 @@ _nim() {
     '--opt\:-[optimization mode]:x:(none speed size)'
     '--debugger\:native[use native debugger (gdb)]'
     '--app\:-[generate this type of app (lib=dynamic)]:x:(console gui lib staticlib)'
-    '--cpu\:-[target architecture]:x:(alpha amd64 arm arm64 avr e2k esp hppa i386 ia64 js loongarch64 m68k mips mipsel mips64 mips64el msp430 nimvm powerpc powerpc64 powerpc64el riscv32 riscv64 sparc sparc64 vm wasm32)'
+    '--cpu\:-[target architecture]:x:(alpha amd64 arm arm64 avr e2k esp hppa i386 ia64 js loongarch64 m68k mips mipsel mips64 mips64el msp430 nimvm powerpc powerpc64 powerpc64el riscv32 riscv64 sparc sparc64 s390x vm wasm32)'
     '--gc\:-[memory management algorithm to use (default\: refc)]:x:(refc arc orc markAndSweep boehm go regions none)'
     '--os\:-[operating system to compile for]:x:(AIX Amiga Android Any Atari DOS DragonFly FreeBSD FreeRTOS Genode Haiku iOS Irix JS Linux MacOS MacOSX MorphOS NetBSD Netware NimVM NintendoSwitch OS2 OpenBSD PalmOS Standalone QNX SkyOS Solaris VxWorks Windows)'
     '--panics\:-[turn panics into process termination (default\: off)]:x:(off on)'

tools/niminst/buildsh.nimf

@@ -183,6 +183,8 @@ case $ucpu in
       fi
     fi
     ;;
+  *s390x* )
+    mycpu="s390x" ;;
   *ppc64le* )
     mycpu="powerpc64el" ;;
   *ppc64* )

tools/niminst/makefile.nimf

@@ -117,6 +117,9 @@ endif
 ifeq ($(ucpu),sparc64)
   mycpu = sparc64
 endif
+ifeq ($(ucpu),s390x)
+  mycpu = s390x
+endif
 ifeq ($(ucpu),sun)
   mycpu = sparc
 endif