[WIP] Add Borland 3.1 compiler to MS-DOS platform

.github/workflows/ci.yml

@@ -58,7 +58,9 @@ jobs:
       - name: Install msdos assembler
         run: |-
           wget https://github.com/OmniBlade/binutils-gdb/releases/download/omf-build/omftools.tar.gz
-          sudo tar xvzf omftools.tar.gz -C /usr/bin jwasm omf-nm omf-objdump
+          sudo tar xvzf omftools.tar.gz -C /usr/bin jwasm
+          wget https://github.com/sillyc0n/binutils-gdb/releases/download/2.42-build7/omftools-2.42-build7-linux-x86_64.tar.gz
+          sudo tar xvzf omftools-2.42-build7-linux-x86_64.tar.gz -C /usr/bin omf-nm omf-objdump
       - name: Install mips PS2 binutils
         run: |-
           wget https://github.com/decompals/binutils-mips-ps2-decompals/releases/download/v0.4/binutils-mips-ps2-decompals-linux-x86-64.tar.gz

backend/Dockerfile

@@ -100,8 +100,11 @@ RUN if [ "${ENABLE_PS2_SUPPORT}" = "YES" ] || [ "${ENABLE_PSP_SUPPORT}" = "YES"
 # msdos specific
 RUN if [ "${ENABLE_MSDOS_SUPPORT}" = "YES" ]; then \
     wget "https://github.com/OmniBlade/binutils-gdb/releases/download/omf-build/omftools.tar.gz" && \
-    tar xvzf omftools.tar.gz -C /usr/bin jwasm omf-nm omf-objdump && \
-    rm omftools.tar.gz; \
+    tar xvzf omftools.tar.gz -C /usr/bin jwasm && \
+    rm omftools.tar.gz && \
+    wget "https://github.com/sillyc0n/binutils-gdb/releases/download/2.42-build7/omftools-2.42-build7-linux-x86_64.tar.gz" && \
+    tar xvzf omftools-2.42-build7-linux-x86_64.tar.gz -C /usr/bin omf-nm omf-objdump && \
+    rm omftools-2.42-build7-linux-x86_64.tar.gz; \
     fi
 
 # Patched PowerPC binutils

backend/compilers/compilers.linux.yaml

@@ -186,6 +186,7 @@ msdos:
   - wcc10.5a
   - wcc10.6
   - wcc11.0
+  - bcc3.1
 
 win32:
   - msvc4.0

backend/coreapp/asm_preludes/msdos.s

@@ -1,2 +1 @@
-.386P
-.model FLAT
+

backend/coreapp/compilers.py

@@ -21,6 +21,7 @@
     COMMON_MWCC_PSP_FLAGS,
     COMMON_MWCC_WII_GC_FLAGS,
     COMMON_WATCOM_FLAGS,
+    COMMON_BORLAND_FLAGS,
     Flags,
     Language,
 )
@@ -184,6 +185,12 @@ class WatcomCompiler(Compiler):
     library_include_flag: str = "/IZ:"
 
 
+@dataclass(frozen=True)
+class BorlandCompiler(Compiler):
+    flags: ClassVar[Flags] = COMMON_BORLAND_FLAGS
+    library_include_flag: str = ""
+
+
 def from_id(compiler_id: str) -> Compiler:
     if compiler_id not in _compilers:
         raise APIException(
@@ -1472,6 +1479,19 @@ def available_platforms() -> List[Platform]:
     cc=WATCOM_CXX,
 )
 
+BORLAND_MSDOS_CC = (
+    'cat "$INPUT" | unix2dos > dos_src.c && '
+    "echo \"\$_hdimage = '+0 ${COMPILER_DIR} +1'\" > .dosemurc && "
+    '(HOME="." /usr/bin/dosemu -quiet -dumb -f .dosemurc -K . -E "D:\\bin\\bcc.exe -ID:\\include ${COMPILER_FLAGS} -c -oout.o dos_src.c") && '
+    'cp out.o "$OUTPUT"'
+)
+
+BORLAND_31_C = BorlandCompiler(
+    id="bcc3.1",
+    platform=MSDOS,
+    cc=BORLAND_MSDOS_CC,
+)
+
 _all_compilers: List[Compiler] = [
     DUMMY,
     DUMMY_LONGRUNNING,
@@ -1682,6 +1702,8 @@ def available_platforms() -> List[Platform]:
     WATCOM_106_CPP,
     WATCOM_110_C,
     WATCOM_110_CPP,
+    # Borland, DOS
+    BORLAND_31_C,
 ]
 
 _compilers = OrderedDict({c.id: c for c in _all_compilers if c.available()})

backend/coreapp/diff_wrapper.py

@@ -133,7 +133,7 @@ def get_objdump_target_function_flags(
 
     @staticmethod
     def parse_objdump_flags(diff_flags: List[str]) -> List[str]:
-        known_objdump_flags = ["-Mno-aliases"]
+        known_objdump_flags = ["-Mno-aliases", "--reloc"]
         known_objdump_flag_prefixes = ["-Mreg-names=", "--disassemble="]
         ret = []
 

backend/coreapp/flags.py

@@ -323,3 +323,7 @@ def to_json(self) -> Dict[str, Union[str, List[str]]]:
     Checkbox("watcom_signedchar", "-j"),
     Checkbox("watcom_fpu", "-fpi87"),
 ]
+
+COMMON_MSDOS_DIFF_FLAGS: Flags = [Checkbox("diff_reloc", "--reloc")]
+
+COMMON_BORLAND_FLAGS: Flags = []

backend/coreapp/platforms.py

@@ -4,7 +4,12 @@
 from pathlib import Path
 import functools
 
-from coreapp.flags import COMMON_DIFF_FLAGS, COMMON_MIPS_DIFF_FLAGS, Flags
+from coreapp.flags import (
+    COMMON_DIFF_FLAGS,
+    COMMON_MIPS_DIFF_FLAGS,
+    COMMON_MSDOS_DIFF_FLAGS,
+    Flags,
+)
 from coreapp.models.preset import Preset
 from coreapp.models.scratch import Scratch
 from rest_framework.exceptions import APIException
@@ -78,10 +83,12 @@ def from_id(platform_id: str) -> Platform:
     id="msdos",
     name="Microsoft DOS",
     description="x86",
-    arch="i686",
+    arch="x86",
     assemble_cmd='jwasm -c -Fo"$OUTPUT" -Fi"$PRELUDE" "$INPUT"',
     objdump_cmd="omf-objdump",
     nm_cmd="omf-nm",
+    supports_objdump_disassemble=True,
+    diff_flags=COMMON_DIFF_FLAGS + COMMON_MSDOS_DIFF_FLAGS,
 )
 
 WIN32 = Platform(

frontend/src/lib/i18n/locales/en/compilers.json

@@ -219,6 +219,8 @@
     "wcc11.0": "Watcom Optimizing C i386 Compiler 11.0",
     "wpp11.0": "Watcom Optimizing C++ i386 Compiler 11.0",
 
+    "bcc3.1": "Borland C i386 Compiler 3.1",
+
     "cygnus-2.7-96Q3": "cygnus-2.7-96Q3 SOA-960904",
 
     "armcc_opt_level": "Optimization level",
@@ -458,6 +460,7 @@
     "mno_aliases": "Disable pseudo instructions",
     "no_show_rodata_refs": "Hide rodata refs in diff, e.g. jtbl labels",
     "diff_function_symbols": "Include function labels in diff",
+    "diff_reloc": "Diff relocation",
 
     "diff_algorithm": "Diff algorithm",
     "diff_algorithm.-DIFFlevenshtein": "Levenshtein",