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[Mach-O] Add a stub for Mach-O

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This commit is contained in:
Rui Ueyama 2021-09-08 19:02:38 +09:00
parent 6cf0a010ec
commit cab0ccf0bd
6 changed files with 44 additions and 16 deletions
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12
Makefile
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@ -17,9 +17,9 @@ CPPFLAGS = -g -pthread -std=c++20 -fPIE \
LDFLAGS += $(EXTRA_LDFLAGS)
LIBS = -pthread -lz -lxxhash -ldl -lm
SRCS=$(wildcard elf/*.cc)
HEADERS=$(wildcard elf/*.h)
OBJS=$(SRCS:elf/%.cc=out/elf/%.o)
SRCS=$(wildcard *.cc elf/*.cc macho/*.cc)
HEADERS=$(wildcard *.h elf/*.h macho/*.h)
OBJS=$(SRCS:%.cc=out/%.o)
PREFIX ?= /usr
DEST = $(DESTDIR)$(PREFIX)
@ -79,13 +79,17 @@ mold: $(OBJS) $(MIMALLOC_LIB) $(TBB_LIB)
mold-wrapper.so: elf/mold-wrapper.c Makefile
$(CC) -fPIC -shared -o $@ $< -ldl
out/elf/%.o: elf/%.cc $(HEADERS) Makefile out/elf/.keep
out/%.o: %.cc $(HEADERS) Makefile out/elf/.keep out/macho/.keep
$(CXX) $(CPPFLAGS) -c -o $@ $<
out/elf/.keep:
mkdir -p out/elf
touch $@
out/macho/.keep:
mkdir -p out/macho
touch $@
$(MIMALLOC_LIB):
mkdir -p out/mimalloc
(cd out/mimalloc; CFLAGS=-DMI_USE_ENVIRON=0 cmake -G'Unix Makefiles' ../../third-party/mimalloc)

17
elf/main.cc
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@ -323,7 +323,7 @@ static void show_stats(Context<E> &ctx) {
}
template <typename E>
int do_main(int argc, char **argv) {
int elf_main(int argc, char **argv) {
Context<E> ctx;
// Process -run option first. process_run_subcommand() does not return.
@ -340,9 +340,9 @@ int do_main(int argc, char **argv) {
if (ctx.arg.emulation != E::e_machine) {
switch (ctx.arg.emulation) {
case EM_386:
return do_main<I386>(argc, argv);
return elf_main<I386>(argc, argv);
case EM_AARCH64:
return do_main<AARCH64>(argc, argv);
return elf_main<AARCH64>(argc, argv);
}
unreachable(ctx);
}
@ -673,18 +673,11 @@ int do_main(int argc, char **argv) {
#define INSTANTIATE(E) \
template void read_file(Context<E> &, MemoryMappedFile<E> *); \
template std::string_view save_string(Context<E> &, const std::string &)
template std::string_view save_string(Context<E> &, const std::string &); \
template int elf_main<E>(int, char **);
INSTANTIATE(X86_64);
INSTANTIATE(I386);
INSTANTIATE(AARCH64);
} // namespace mold::elf
int main(int argc, char **argv) {
std::string_view cmd = mold::elf::path_filename(argv[0]);
if (cmd == "ld" || cmd == "mold" || cmd == "ld.mold")
return mold::elf::do_main<mold::elf::X86_64>(argc, argv);
std::cerr << "mold: unknown command: " << argv[0] << "\n";
exit(1);
}

3
elf/mold.h
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@ -1671,6 +1671,9 @@ std::regex glob_to_regex(std::string_view pat);
std::string errno_string();
std::string get_version_string();
template <typename E>
int elf_main(int argc, char **argv);
//
// Error output
//

9
macho/main.cc Normal file
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@ -0,0 +1,9 @@
#include "mold.h"
namespace mold::macho {
int macho_main(int argc, char **argv) {
return 0;
}
}

5
macho/mold.h Normal file
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@ -0,0 +1,5 @@
namespace mold::macho {
int macho_main(int argc, char **argv);
} // namespace mold::macho

14
main.cc Normal file
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@ -0,0 +1,14 @@
#include "elf/mold.h"
#include "macho/mold.h"
int main(int argc, char **argv) {
std::string_view cmd = mold::elf::path_filename(argv[0]);
if (cmd == "ld" || cmd == "mold" || cmd == "ld.mold")
return mold::elf::elf_main<mold::elf::X86_64>(argc, argv);
if (cmd == "ld64" || cmd == "ld64.mold")
return mold::macho::macho_main(argc, argv);
std::cerr << "mold: unknown command: " << argv[0] << "\n";
exit(1);
}