| author |  Andrew Kelley <andrew@ziglang.org> 2024-12-06 19:04:39-05:00 |
| committer |  GitHub <noreply@github.com> 2024-12-06 19:04:39-05:00 |
| log | eb9c9a38f268f48ac51223e04fab7af5d8a5a1bd |
| tree | 946f2484d8f1ded10f6df4a613a79a0c6da31d6b |
| parent | ca069244b200ec1b7f826dd7e7a31a098a4c71a2 |
| parent | 8f27fc6c072590f4e9047542ee56b85fd133633d |
| signature |  Signed by PGP key B5690EEEBB952194 |
Merge pull request #22167 from alexrp/compiler-rt-names
compiler: Classify various compiler-rt and libunwind names accurately and satisfy them3 files changed, 14 insertions(+), 10 deletions(-)
lib- std
- zig
lib/std/zig/target.zig+2-1
| ... | ... | @@ -263,7 +263,8 @@ pub fn isLibCxxLibName(target: std.Target, name: []const u8) bool { |
| 263 | 263 | |
| 264 | 264 | return eqlIgnoreCase(ignore_case, name, "c++") or |
| 265 | 265 | eqlIgnoreCase(ignore_case, name, "stdc++") or |
| 266 | eqlIgnoreCase(ignore_case, name, "c++abi"); | |
| 266 | eqlIgnoreCase(ignore_case, name, "c++abi") or | |
| 267 | eqlIgnoreCase(ignore_case, name, "supc++"); | |
| 267 | 268 | } |
| 268 | 269 | |
| 269 | 270 | fn eqlIgnoreCase(ignore_case: bool, a: []const u8, b: []const u8) bool { |
src/main.zig+2-5
| ... | ... | @@ -3832,16 +3832,13 @@ fn createModule( |
| 3832 | 3832 | create_module.opts.link_libcpp = true; |
| 3833 | 3833 | continue; |
| 3834 | 3834 | } |
| 3835 | switch (target_util.classifyCompilerRtLibName(target, lib_name)) { | |
| 3835 | switch (target_util.classifyCompilerRtLibName(lib_name)) { | |
| 3836 | 3836 | .none => {}, |
| 3837 | 3837 | .only_libunwind, .both => { |
| 3838 | 3838 | create_module.opts.link_libunwind = true; |
| 3839 | 3839 | continue; |
| 3840 | 3840 | }, |
| 3841 | .only_compiler_rt => { | |
| 3842 | warn("ignoring superfluous library '{s}': this dependency is fulfilled instead by compiler-rt which zig unconditionally provides", .{lib_name}); | |
| 3843 | continue; | |
| 3844 | }, | |
| 3841 | .only_compiler_rt => continue, | |
| 3845 | 3842 | } |
| 3846 | 3843 | |
| 3847 | 3844 | if (target.isMinGW()) { |
src/target.zig+10-4
| ... | ... | @@ -260,17 +260,23 @@ pub fn supportsReturnAddress(target: std.Target) bool { |
| 260 | 260 | |
| 261 | 261 | pub const CompilerRtClassification = enum { none, only_compiler_rt, only_libunwind, both }; |
| 262 | 262 | |
| 263 | pub fn classifyCompilerRtLibName(target: std.Target, name: []const u8) CompilerRtClassification { | |
| 264 | if (target.abi.isGnu() and std.mem.eql(u8, name, "gcc_s")) { | |
| 263 | pub fn classifyCompilerRtLibName(name: []const u8) CompilerRtClassification { | |
| 264 | if (std.mem.eql(u8, name, "gcc_s")) { | |
| 265 | 265 | // libgcc_s includes exception handling functions, so if linking this library |
| 266 | 266 | // is requested, zig needs to instead link libunwind. Otherwise we end up with |
| 267 | 267 | // the linker unable to find `_Unwind_RaiseException` and other related symbols. |
| 268 | 268 | return .both; |
| 269 | 269 | } |
| 270 | if (std.mem.eql(u8, name, "compiler_rt")) { | |
| 270 | if (std.mem.eql(u8, name, "compiler_rt") or | |
| 271 | std.mem.eql(u8, name, "gcc") or | |
| 272 | std.mem.eql(u8, name, "atomic") or | |
| 273 | std.mem.eql(u8, name, "ssp")) | |
| 274 | { | |
| 271 | 275 | return .only_compiler_rt; |
| 272 | 276 | } |
| 273 | if (std.mem.eql(u8, name, "unwind")) { | |
| 277 | if (std.mem.eql(u8, name, "unwind") or | |
| 278 | std.mem.eql(u8, name, "gcc_eh")) | |
| 279 | { | |
| 274 | 280 | return .only_libunwind; |
| 275 | 281 | } |
| 276 | 282 | return .none; |