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stage2: building glibc libc_nonshared.a CRT file

master
Andrew Kelley 2020-09-15 00:41:02 -07:00
parent 4fa8cc7369
commit 1da9e0fcaf
1 changed files with 93 additions and 5 deletions
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98
src-self-hosted/glibc.zig
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@ -270,7 +270,7 @@ pub fn buildCRTFile(comp: *Compilation, crt_file: CRTFile) !void {
"-g",
"-Wa,--noexecstack",
});
return build_crt_file(comp, "crti.o", &[1]Compilation.CSourceFile{
return build_crt_file(comp, "crti.o", .Obj, &[1]Compilation.CSourceFile{
.{
.src_path = try start_asm_path(comp, arena, "crti.S"),
.extra_flags = args.items,
@ -288,7 +288,7 @@ pub fn buildCRTFile(comp: *Compilation, crt_file: CRTFile) !void {
"-g",
"-Wa,--noexecstack",
});
return build_crt_file(comp, "crtn.o", &[1]Compilation.CSourceFile{
return build_crt_file(comp, "crtn.o", .Obj, &[1]Compilation.CSourceFile{
.{
.src_path = try start_asm_path(comp, arena, "crtn.S"),
.extra_flags = args.items,
@ -339,10 +339,97 @@ pub fn buildCRTFile(comp: *Compilation, crt_file: CRTFile) !void {
.extra_flags = args.items,
};
};
return build_crt_file(comp, "Scrt1.o", &[_]Compilation.CSourceFile{ start_os, abi_note_o });
return build_crt_file(comp, "Scrt1.o", .Obj, &[_]Compilation.CSourceFile{ start_os, abi_note_o });
},
.libc_nonshared_a => {
return error.Unimplemented; // TODO
const deps = [_][]const u8{
lib_libc_glibc ++ "stdlib" ++ path.sep_str ++ "atexit.c",
lib_libc_glibc ++ "stdlib" ++ path.sep_str ++ "at_quick_exit.c",
lib_libc_glibc ++ "io" ++ path.sep_str ++ "stat.c",
lib_libc_glibc ++ "io" ++ path.sep_str ++ "fstat.c",
lib_libc_glibc ++ "io" ++ path.sep_str ++ "lstat.c",
lib_libc_glibc ++ "io" ++ path.sep_str ++ "stat64.c",
lib_libc_glibc ++ "io" ++ path.sep_str ++ "fstat64.c",
lib_libc_glibc ++ "io" ++ path.sep_str ++ "lstat64.c",
lib_libc_glibc ++ "io" ++ path.sep_str ++ "fstatat.c",
lib_libc_glibc ++ "io" ++ path.sep_str ++ "fstatat64.c",
lib_libc_glibc ++ "io" ++ path.sep_str ++ "mknod.c",
lib_libc_glibc ++ "io" ++ path.sep_str ++ "mknodat.c",
lib_libc_glibc ++ "nptl" ++ path.sep_str ++ "pthread_atfork.c",
lib_libc_glibc ++ "debug" ++ path.sep_str ++ "stack_chk_fail_local.c",
};
var c_source_files: [deps.len + 1]Compilation.CSourceFile = undefined;
c_source_files[0] = blk: {
var args = std.ArrayList([]const u8).init(arena);
try args.appendSlice(&[_][]const u8{
"-std=gnu11",
"-fgnu89-inline",
"-g",
"-O2",
"-fmerge-all-constants",
"-fno-stack-protector",
"-fmath-errno",
"-fno-stack-protector",
"-I",
try lib_path(comp, arena, lib_libc_glibc ++ "csu"),
});
try add_include_dirs(comp, arena, &args);
try args.appendSlice(&[_][]const u8{
"-DSTACK_PROTECTOR_LEVEL=0",
"-fPIC",
"-fno-stack-protector",
"-ftls-model=initial-exec",
"-D_LIBC_REENTRANT",
"-include",
try lib_path(comp, arena, lib_libc_glibc ++ "include" ++ path.sep_str ++ "libc-modules.h"),
"-DMODULE_NAME=libc",
"-Wno-nonportable-include-path",
"-include",
try lib_path(comp, arena, lib_libc_glibc ++ "include" ++ path.sep_str ++ "libc-symbols.h"),
"-DPIC",
"-DLIBC_NONSHARED=1",
"-DTOP_NAMESPACE=glibc",
});
break :blk .{
.src_path = try lib_path(comp, arena, lib_libc_glibc ++ "csu" ++ path.sep_str ++ "elf-init.c"),
.extra_flags = args.items,
};
};
for (deps) |dep, i| {
var args = std.ArrayList([]const u8).init(arena);
try args.appendSlice(&[_][]const u8{
"-std=gnu11",
"-fgnu89-inline",
"-g",
"-O2",
"-fmerge-all-constants",
"-fno-stack-protector",
"-fmath-errno",
"-ftls-model=initial-exec",
"-Wno-ignored-attributes",
});
try add_include_dirs(comp, arena, &args);
try args.appendSlice(&[_][]const u8{
"-D_LIBC_REENTRANT",
"-include",
try lib_path(comp, arena, lib_libc_glibc ++ "include" ++ path.sep_str ++ "libc-modules.h"),
"-DMODULE_NAME=libc",
"-Wno-nonportable-include-path",
"-include",
try lib_path(comp, arena, lib_libc_glibc ++ "include" ++ path.sep_str ++ "libc-symbols.h"),
"-DPIC",
"-DLIBC_NONSHARED=1",
"-DTOP_NAMESPACE=glibc",
});
c_source_files[i + 1] = .{
.src_path = try lib_path(comp, arena, dep),
.extra_flags = args.items,
};
}
return build_crt_file(comp, "libc_nonshared.a", .Lib, &c_source_files);
},
}
}
@ -588,6 +675,7 @@ fn lib_path(comp: *Compilation, arena: *Allocator, sub_path: []const u8) ![]cons
fn build_crt_file(
comp: *Compilation,
basename: []const u8,
output_mode: std.builtin.OutputMode,
c_source_files: []const Compilation.CSourceFile,
) !void {
const tracy = trace(@src());
@ -605,7 +693,7 @@ fn build_crt_file(
.target = comp.getTarget(),
.root_name = mem.split(basename, ".").next().?,
.root_pkg = null,
.output_mode = .Obj,
.output_mode = output_mode,
.rand = comp.rand,
.libc_installation = comp.bin_file.options.libc_installation,
.emit_bin = emit_bin,