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recognize ar program and pass --gc-sections to ld 

See #54
master
Andrew Kelley 2016-05-11 14:44:10 -07:00
parent 6b7ffd4cbe
commit 26718a619c
10 changed files with 29 additions and 4 deletions
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2
CMakeLists.txt
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@ -18,6 +18,7 @@ set(ZIG_LIBC_LIB_DIR "" CACHE STRING "Default native target libc directory where
set(ZIG_LIBC_STATIC_LIB_DIR "" CACHE STRING "Default native target libc directory where crtbeginT.o can be found")
set(ZIG_LIBC_INCLUDE_DIR "/usr/include" CACHE STRING "Default native target libc include directory")
set(ZIG_LD_PATH "ld" CACHE STRING "Path to ld for the native target")
set(ZIG_AR_PATH "ar" CACHE STRING "Path to ar for the native target")
set(ZIG_DYNAMIC_LINKER "" CACHE STRING "Override dynamic linker for native target")
option(ZIG_TEST_COVERAGE "Build Zig with test coverage instrumentation" OFF)
@ -217,6 +218,7 @@ install(FILES "${CMAKE_SOURCE_DIR}/std/linux_i386.zig" DESTINATION "${ZIG_STD_DE
install(FILES "${CMAKE_SOURCE_DIR}/std/mem.zig" DESTINATION "${ZIG_STD_DEST}")
install(FILES "${CMAKE_SOURCE_DIR}/std/list.zig" DESTINATION "${ZIG_STD_DEST}")
install(FILES "${CMAKE_SOURCE_DIR}/std/hash_map.zig" DESTINATION "${ZIG_STD_DEST}")
install(FILES "${CMAKE_SOURCE_DIR}/std/empty.zig" DESTINATION "${ZIG_STD_DEST}")
add_executable(run_tests ${TEST_SOURCES})
target_link_libraries(run_tests)

1
src/all_types.hpp
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@ -1214,6 +1214,7 @@ struct CodeGen {
Buf *libc_include_dir;
Buf *dynamic_linker;
Buf *linker_path;
Buf *ar_path;
Buf triple_str;
bool is_release_build;
bool is_test_build;

6
src/codegen.cpp
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@ -85,6 +85,7 @@ CodeGen *codegen_create(Buf *root_source_dir, const ZigTarget *target) {
g->libc_static_lib_dir = buf_create_from_str("");
g->libc_include_dir = buf_create_from_str("");
g->linker_path = buf_create_from_str("");
g->ar_path = buf_create_from_str("");
g->darwin_linker_version = buf_create_from_str("");
} else {
// native compilation, we can rely on the configuration stuff
@ -96,6 +97,7 @@ CodeGen *codegen_create(Buf *root_source_dir, const ZigTarget *target) {
g->libc_static_lib_dir = buf_create_from_str(ZIG_LIBC_STATIC_LIB_DIR);
g->libc_include_dir = buf_create_from_str(ZIG_LIBC_INCLUDE_DIR);
g->linker_path = buf_create_from_str(ZIG_LD_PATH);
g->ar_path = buf_create_from_str(ZIG_AR_PATH);
g->darwin_linker_version = buf_create_from_str(ZIG_HOST_LINK_VERSION);
if (g->zig_target.os == ZigLLVM_Darwin ||
@ -171,6 +173,10 @@ void codegen_set_linker_path(CodeGen *g, Buf *linker_path) {
g->linker_path = linker_path;
}
void codegen_set_ar_path(CodeGen *g, Buf *ar_path) {
g->ar_path = ar_path;
}
void codegen_add_lib_dir(CodeGen *g, const char *dir) {
g->lib_dirs.append(dir);
}

1
src/codegen.hpp
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@ -32,6 +32,7 @@ void codegen_set_libc_static_lib_dir(CodeGen *g, Buf *libc_static_lib_dir);
void codegen_set_libc_include_dir(CodeGen *codegen, Buf *libc_include_dir);
void codegen_set_dynamic_linker(CodeGen *g, Buf *dynamic_linker);
void codegen_set_linker_path(CodeGen *g, Buf *linker_path);
void codegen_set_ar_path(CodeGen *g, Buf *ar_path);
void codegen_set_windows_subsystem(CodeGen *g, bool mwindows, bool mconsole);
void codegen_set_windows_unicode(CodeGen *g, bool municode);
void codegen_add_lib_dir(CodeGen *codegen, const char *dir);

1
src/config.h.in
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@ -12,6 +12,7 @@
#define ZIG_LIBC_LIB_DIR "@ZIG_LIBC_LIB_DIR@"
#define ZIG_LIBC_STATIC_LIB_DIR "@ZIG_LIBC_STATIC_LIB_DIR@"
#define ZIG_LD_PATH "@ZIG_LD_PATH@"
#define ZIG_AR_PATH "@ZIG_AR_PATH@"
#define ZIG_DYNAMIC_LINKER "@ZIG_DYNAMIC_LINKER@"
#define ZIG_HOST_LINK_VERSION "@ZIG_HOST_LINK_VERSION@"

1
src/link.cpp
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@ -152,6 +152,7 @@ static void construct_linker_job_linux(LinkJob *lj) {
find_libc_lib_path(g);
}
lj->args.append("--gc-sections");
lj->args.append("-m");
lj->args.append(getLDMOption(&g->zig_target));

6
src/main.cpp
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@ -37,6 +37,7 @@ static int usage(const char *arg0) {
" --libc-include-dir [path] directory where libc stdlib.h resides\n"
" --dynamic-linker [path] set the path to ld.so\n"
" --ld-path [path] set the path to the linker\n"
" --ar-path [path] set the path to ar\n"
" -isystem [dir] add additional search path for other .h files\n"
" -dirafter [dir] same as -isystem but do it last\n"
" --library-path [dir] add a directory to the library search path\n"
@ -118,6 +119,7 @@ int main(int argc, char **argv) {
const char *libc_include_dir = nullptr;
const char *dynamic_linker = nullptr;
const char *linker_path = nullptr;
const char *ar_path = nullptr;
ZigList<const char *> clang_argv = {0};
ZigList<const char *> lib_dirs = {0};
ZigList<const char *> link_libs = {0};
@ -196,6 +198,8 @@ int main(int argc, char **argv) {
dynamic_linker = argv[i];
} else if (strcmp(arg, "--ld-path") == 0) {
linker_path = argv[i];
} else if (strcmp(arg, "--ar-path") == 0) {
ar_path = argv[i];
} else if (strcmp(arg, "-isystem") == 0) {
clang_argv.append("-isystem");
clang_argv.append(argv[i]);
@ -356,6 +360,8 @@ int main(int argc, char **argv) {
codegen_set_dynamic_linker(g, buf_create_from_str(dynamic_linker));
if (linker_path)
codegen_set_linker_path(g, buf_create_from_str(linker_path));
if (ar_path)
codegen_set_ar_path(g, buf_create_from_str(ar_path));
codegen_set_verbose(g, verbose);
codegen_set_errmsg_color(g, color);

0
std/empty.zig Normal file
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6
std/index.zig
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@ -8,7 +8,13 @@ pub const net = @import("net.zig");
pub const list = @import("list.zig");
pub const hash_map = @import("hash_map.zig");
pub const mem = @import("mem.zig");
pub const linux = switch(@compile_var("os")) {
linux => @import("linux.zig"),
else => null_import,
};
pub fn assert(b: bool) {
if (!b) unreachable{}
}
const null_import = @import("empty.zig");

9
std/io.zig
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@ -119,10 +119,10 @@ pub struct OutStream {
}
pub fn flush(os: &OutStream) -> %void {
const amt_written = linux.write(os.fd, &os.buffer[0], os.index);
os.index = 0;
if (amt_written < 0) {
return switch (-amt_written) {
const write_ret = linux.write(os.fd, &os.buffer[0], os.index);
const write_err = linux.get_errno(write_ret);
if (write_err > 0) {
return switch (write_err) {
errno.EINVAL => unreachable{},
errno.EDQUOT => error.DiskQuota,
errno.EFBIG => error.FileTooBig,
@ -134,6 +134,7 @@ pub struct OutStream {
else => error.Unexpected,
}
}
os.index = 0;
}
pub fn close(os: &OutStream) -> %void {