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Download and use embedded msvcrt.dll

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This commit is contained in:
Luke Street
2025-11-09 13:18:33 -07:00
parent cc0a887302
commit d85671e3c6
11 changed files with 619 additions and 259 deletions
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27
tools/gen_trampolines.py
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@@ -49,8 +49,6 @@ if "LIBCLANG_PATH" in os.environ:
f"Warning: LIBCLANG_PATH={libclang_path} is not a file or directory\n"
)
SYMBOL_PREFIX = "_" if sys.platform == "darwin" else ""
class Arch(str, Enum):
X86 = "x86"
@@ -924,7 +922,7 @@ def emit_guest_to_host_thunks(
lines: List[str], dll: str, funcs: Iterable[FuncInfo], arch: Arch
) -> None:
for f in funcs:
thunk = f"{SYMBOL_PREFIX}thunk_{dll}_{f.name}"
thunk = f"thunk_{dll}_{f.name}"
lines.append("")
lines.append(
f"# {f.qualified_ns}::{f.name} (source_cc={f.source_cc.name}, target_cc={f.target_cc.name}, variadic={f.variadic})"
@@ -938,20 +936,16 @@ def emit_guest_to_host_thunks(
details.append(f"class={arg.arg_class.value}")
details.append(f"sign_extended={arg.sign_extended}")
lines.append(f"\t# Arg {i} ({', '.join(details)})")
lines.append(f".globl {thunk}")
if sys.platform != "darwin":
lines.append(f".type {thunk}, @function")
lines.append(f"{thunk}:")
lines.append(f"ASM_GLOBAL({thunk}, @function)")
emit_cc_thunk(f, lines, arch)
if sys.platform != "darwin":
lines.append(f".size {thunk}, .-{thunk}")
lines.append(f"ASM_END({thunk})")
def emit_host_to_guest_thunks(
lines: List[str], typedefs: Iterable[TypedefInfo], arch: Arch
) -> None:
for f in typedefs:
thunk = f"{SYMBOL_PREFIX}call_{f.name}"
thunk = f"call_{f.name}"
lines.append("")
lines.append(
f"# {f.name} (target_cc={f.target_cc.name}, variadic={f.variadic})"
@@ -969,16 +963,9 @@ def emit_host_to_guest_thunks(
# details.append(f"class={f.return_type.arg_class.value}")
# details.append(f"sign_extended={f.return_type.sign_extended}")
# lines.append(f"\t# Ret ({', '.join(details)})")
if sys.platform == "darwin":
lines.append(f".globl {thunk}")
lines.append(f".weak_definition {thunk}")
else:
lines.append(f".weak {thunk}")
lines.append(f".type {thunk}, @function")
lines.append(f"{thunk}:")
lines.append(f"ASM_WEAK({thunk}, @function)")
emit_cc_thunk(f, lines, arch)
if sys.platform != "darwin":
lines.append(f".size {thunk}, .-{thunk}")
lines.append(f"ASM_END({thunk})")
def emit_header_mapping(
@@ -1114,8 +1101,6 @@ def main() -> int:
lines: List[str] = []
lines.append("# Auto-generated thunks; DO NOT EDIT.")
lines.append('#include "macros.S"')
if sys.platform != "darwin":
lines.append('.section .note.GNU-stack, "", @progbits')
lines.append(".text")
emit_guest_to_host_thunks(lines, args.dll, funcs, arch)