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| author | Isaac Freund <ifreund@ifreund.xyz> | 2021-06-21 22:45:43 +0200 |
|---|---|---|
| committer | Isaac Freund <ifreund@ifreund.xyz> | 2021-06-25 19:13:43 +0200 |
| commit | 260c5aed86d662d2e2bd03c06d123bef9455053d (patch) | |
| tree | 9bbf9bcbce9447ecacb5e92b969d0565fb4cce53 /src/main.zig | |
| parent | 411f9c60b1cb30aec8706ffac75992ac8cc59cba (diff) | |
| download | zig-260c5aed86d662d2e2bd03c06d123bef9455053d.tar.gz zig-260c5aed86d662d2e2bd03c06d123bef9455053d.zip | |
stage2: add --sysroot link option
This feature is necessary for cross-compiling code that dynamically
links system libraries, at least with the current feature set of lld.
Diffstat (limited to 'src/main.zig')
| -rw-r--r-- | src/main.zig | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/main.zig b/src/main.zig index 1cf62c011b..86995c5b9f 100644 --- a/src/main.zig +++ b/src/main.zig @@ -379,6 +379,7 @@ const usage_build_generic = \\ -T[script], --script [script] Use a custom linker script \\ --version-script [path] Provide a version .map file \\ --dynamic-linker [path] Set the dynamic interpreter path (usually ld.so) + \\ --sysroot [path] Set the system root directory (usually /) \\ --version [ver] Dynamic library semver \\ -fsoname[=name] (Linux) Override the default SONAME value \\ -fno-soname (Linux) Disable emitting a SONAME @@ -604,6 +605,7 @@ fn buildOutputType( var link_eh_frame_hdr = false; var link_emit_relocs = false; var each_lib_rpath: ?bool = null; + var sysroot: ?[]const u8 = null; var libc_paths_file: ?[]const u8 = try optionalStringEnvVar(arena, "ZIG_LIBC"); var machine_code_model: std.builtin.CodeModel = .default; var runtime_args_start: ?usize = null; @@ -865,6 +867,10 @@ fn buildOutputType( if (i + 1 >= args.len) fatal("expected parameter after {s}", .{arg}); i += 1; target_dynamic_linker = args[i]; + } else if (mem.eql(u8, arg, "--sysroot")) { + if (i + 1 >= args.len) fatal("expected parameter after {s}", .{arg}); + i += 1; + sysroot = args[i]; } else if (mem.eql(u8, arg, "--libc")) { if (i + 1 >= args.len) fatal("expected parameter after {s}", .{arg}); i += 1; @@ -1641,7 +1647,9 @@ fn buildOutputType( want_native_include_dirs = true; } - if (cross_target.isNativeOs() and (system_libs.items.len != 0 or want_native_include_dirs)) { + if (sysroot == null and cross_target.isNativeOs() and + (system_libs.items.len != 0 or want_native_include_dirs)) + { const paths = std.zig.system.NativePaths.detect(arena, target_info) catch |err| { fatal("unable to detect native system paths: {s}", .{@errorName(err)}); }; @@ -1918,6 +1926,7 @@ fn buildOutputType( .is_native_os = cross_target.isNativeOs(), .is_native_abi = cross_target.isNativeAbi(), .dynamic_linker = target_info.dynamic_linker.get(), + .sysroot = sysroot, .output_mode = output_mode, .root_pkg = root_pkg, .emit_bin = emit_bin_loc, |