overhaul elf csu (c-runtime startup) logic

- more support for linux, android, freebsd, netbsd, openbsd, dragonfly
- centralize musl utils; musl logic is no longer intertwined with csu
- fix musl compilation to build crti/crtn for full archs list
- fix openbsd to support `zig build-lib -dynamic`
- initial dragonfly linking success (with a warning)

ancillary:

- fix emutls (openbsd) tests to use `try`

1 files changed, 0 insertions, 21 deletions

diff --git a/src/target.zig b/src/target.zig
index 35c3cd8560..e077d9629c 100644
--- a/src/target.zig
+++ b/src/target.zig
@@ -99,23 +99,6 @@ pub fn libCGenericName(target: std.Target) [:0]const u8 {
     }
 }
 
-pub fn archMuslName(arch: std.Target.Cpu.Arch) [:0]const u8 {
-    switch (arch) {
-        .aarch64, .aarch64_be => return "aarch64",
-        .arm, .armeb, .thumb, .thumbeb => return "arm",
-        .mips, .mipsel => return "mips",
-        .mips64el, .mips64 => return "mips64",
-        .powerpc => return "powerpc",
-        .powerpc64, .powerpc64le => return "powerpc64",
-        .s390x => return "s390x",
-        .i386 => return "i386",
-        .x86_64 => return "x86_64",
-        .riscv64 => return "riscv64",
-        .wasm32, .wasm64 => return "wasm",
-        else => unreachable,
-    }
-}
-
 pub fn canBuildLibC(target: std.Target) bool {
     for (available_libcs) |libc| {
         if (target.cpu.arch == libc.arch and target.os.tag == libc.os and target.abi == libc.abi) {
@@ -172,10 +155,6 @@ pub fn supports_fpic(target: std.Target) bool {
     return target.os.tag != .windows;
 }
 
-pub fn libc_needs_crti_crtn(target: std.Target) bool {
-    return !(target.cpu.arch.isRISCV() or target.isAndroid() or target.os.tag == .openbsd);
-}
-
 pub fn isSingleThreaded(target: std.Target) bool {
     return target.isWasm();
 }