arm64-win32 support : configure & Makefiles

from: https://github.com/bold84/tinycc
Author: Benjamin Oldenburg <benjamin.oldenburg@ordis.co.th>  2026-04-04 16:29:28
Committer: Benjamin Oldenburg <benjamin.oldenburg@ordis.co.th>  2026-04-04 16:29:28
Branch: win_arm64_clean
Commit: 8b5ab1bb01

Also here: https://repo.or.cz/tinycc.git/shortlog/refs/mob/mob_bold84/win_arm64_clean

This and the followup commits on mob is selected parts
of that original branch. So it is not everything.

It is not, for example:
- unrelated whitespace changes in many files
- a "pin msvcrt.dll" feature in tccpe.c (why that)
- a native getenv() replacement in tcc.c (why that)
- larger changes to the win32/lib runtime and tccrun.c (not needed)
- a very gcc specific detail for struct alignent in tccgen.c
- a custom set/longjmp implementation/replacement (not needed)
- lots of rather basic test files in the win32 folder
- a 'tests/asm' folder with some files (one file renamed to 140_test...c)
- a .docs folder with one file

Makefile

@@ -33,7 +33,7 @@ ifdef CONFIG_WIN32
  ifneq ($(CONFIG_debug),yes)
   LDFLAGS += -s
  endif
- NATIVE_TARGET = $(ARCH)-win$(if $(findstring arm,$(ARCH)),ce,32)
+ NATIVE_TARGET = $(if $(findstring arm64,$(ARCH)),arm64-win32,$(ARCH)-win$(if $(findstring arm,$(ARCH)),ce,32))
 else
  CFG = -unx
  LIBS+=-lm
@@ -113,6 +113,7 @@ DEF-arm64-osx      = $(DEF-arm64) -DTCC_TARGET_MACHO
 DEF-arm64-FreeBSD  = $(DEF-arm64) -DTARGETOS_FreeBSD
 DEF-arm64-NetBSD   = $(DEF-arm64) -DTARGETOS_NetBSD
 DEF-arm64-OpenBSD  = $(DEF-arm64) -DTARGETOS_OpenBSD
+DEF-arm64-win32    = $(DEF-arm64) -DTCC_TARGET_PE
 DEF-riscv64        = -DTCC_TARGET_RISCV64
 DEF-c67            = -DTCC_TARGET_C67 -w # disable warnigs
 DEF-x86_64-FreeBSD = $(DEF-x86_64) -DTARGETOS_FreeBSD
@@ -130,7 +131,7 @@ TCCDOCS = tcc.1 tcc-doc.html tcc-doc.info
 all: $(PROGS) $(TCCLIBS) $(TCCDOCS)
 
 # cross compiler targets to build
-TCC_X = i386 x86_64 i386-win32 x86_64-win32 x86_64-osx arm arm64 arm-wince c67
+TCC_X = i386 x86_64 i386-win32 x86_64-win32 x86_64-osx arm arm64 arm64-win32 arm-wince c67
 TCC_X += riscv64 arm64-osx
 # TCC_X += arm-fpa arm-fpa-ld arm-vfp arm-eabi
 
@@ -212,8 +213,9 @@ arm-fpa-ld_FILES  = $(arm_FILES)
 arm-vfp_FILES     = $(arm_FILES)
 arm-eabi_FILES    = $(arm_FILES)
 arm-eabihf_FILES  = $(arm_FILES)
-arm64_FILES = $(CORE_FILES) arm64-gen.c arm64-link.c arm64-asm.c
+arm64_FILES = $(CORE_FILES) arm64-gen.c arm64-link.c arm64-asm.c arm64-tok.h
 arm64-osx_FILES = $(arm64_FILES) tccmacho.c
+arm64-win32_FILES = $(arm64_FILES) tccpe.c
 c67_FILES = $(CORE_FILES) c67-gen.c c67-link.c tcccoff.c
 riscv64_FILES = $(CORE_FILES) riscv64-gen.c riscv64-link.c riscv64-asm.c
 

configure

@@ -266,7 +266,11 @@ default os_release "$(uname -r)"
 case $buildos in
   Windows_NT|MINGW*|MSYS*|CYGWIN*)
     buildos="WIN32"
-    test "$MSYSTEM" = "MINGW32" && cpu_sys=i386
+    case "$MSYSTEM" in
+      MINGW32) cpu_sys=i386 ;;
+      MINGW64) cpu_sys=x86_64 ;;
+      CLANGARM64|MINGW_ARM64) cpu_sys=arm64 ;;
+    esac
   ;;
   Linux)
     if test "$(uname -o)" = "Android"; then

lib/Makefile

@@ -65,6 +65,7 @@ OBJ-i386-win32 = $(I386_O) chkstk.o $(WIN_O)
 OBJ-x86_64-win32 = $(X86_64_O) chkstk.o $(WIN_O)
 OBJ-arm64 = $(ARM64_O) $(LIN_O)
 OBJ-arm64-osx = $(ARM64_O) $(OSX_O)
+OBJ-arm64-win32 = $(ARM64_O) chkstk.o $(WIN_O)
 OBJ-arm = $(ARM_O) $(LIN_O)
 OBJ-arm-fpa = $(OBJ-arm)
 OBJ-arm-fpa-ld = $(OBJ-arm)

tests/Makefile

@@ -309,6 +309,7 @@ CROSS-TGTS = \
  arm-NetBSD \
  arm-wince \
  arm64 \
+ arm64-win32 \
  arm64-osx \
  arm64-FreeBSD \
  arm64-NetBSD \

tests/pp/Makefile

@@ -46,6 +46,7 @@ clean:
 	rm -f *.output
 
 02.test : DIFF_OPTS += -w
+16.test : DIFF_OPTS += -B
 # 15.test : DIFF_OPTS += -I"^XXX:"
 
 # diff options:

tests/tests2/Makefile

@@ -48,6 +48,21 @@ ifeq (-$(CONFIG_WIN32)-,-yes-)
  SKIP += 117_builtins.test # win32 port doesn't define __builtins
  SKIP += 124_atomic_counter.test # No pthread support
 endif
+ifneq (,$(filter arm% riscv%,$(ARCH)))
+ SKIP += 85_asm-outside-function.test
+ SKIP += 98_al_ax_extend.test
+ SKIP += 99_fastcall.test
+ SKIP += 127_asm_goto.test
+endif
+ifeq (,$(filter arm64 aarch64,$(ARCH)))
+ SKIP += 138_arm64_encoding.test
+ SKIP += 139_arm64_errors.test
+endif
+ifneq (,$(findstring win32,$(CROSS_TARGET)))
+ SKIP += 106_versym.test
+ SKIP += 114_bound_signal.test
+ SKIP += 124_atomic_counter.test
+endif
 ifneq (,$(filter OpenBSD FreeBSD NetBSD,$(TARGETOS)))
  SKIP += 106_versym.test # no pthread_condattr_setpshared
  SKIP += 114_bound_signal.test # libc problem signal/fork
@@ -73,6 +88,7 @@ endif
 
 # These tests run several snippets from the same file one by one
 60_errors_and_warnings.test : FLAGS += -dt
+139_arm64_errors.test : FLAGS += -dt
 96_nodata_wanted.test : FLAGS += -dt
 
 # Always generate certain .expects (don't put these in the GIT),