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lib/std/Build/CheckObject: dump Mach-O symbol attributes

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This commit is contained in:
Jakub Konka 2023-12-08 21:55:30 +01:00
parent 36981d46a3
commit eb70c8801e
3 changed files with 16 additions and 11 deletions
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21
lib/std/Build/Step/CheckObject.zig
View File

@ -923,9 +923,18 @@ const MachODumper = struct {
sect.segName(), sect.segName(),
sect.sectName(), sect.sectName(),
}); });
if (sym.n_desc & macho.REFERENCED_DYNAMICALLY != 0) try writer.writeAll(" [referenced dynamically]");
if (sym.weakDef()) try writer.writeAll(" weak");
if (sym.weakRef()) try writer.writeAll(" weakref");
if (sym.ext()) { if (sym.ext()) {
if (sym.pext()) try writer.writeAll(" private");
try writer.writeAll(" external"); try writer.writeAll(" external");
} } else if (sym.pext()) try writer.writeAll(" (was private external)");
try writer.print(" {s}\n", .{sym_name});
} else if (sym.tentative()) {
const alignment = (sym.n_desc >> 8) & 0x0F;
try writer.print(" 0x{x:0>16} (common) (alignment 2^{d})", .{ sym.n_value, alignment });
if (sym.ext()) try writer.writeAll(" external");
try writer.print(" {s}\n", .{sym_name}); try writer.print(" {s}\n", .{sym_name});
} else if (sym.undf()) { } else if (sym.undf()) {
const ordinal = @divTrunc(@as(i16, @bitCast(sym.n_desc)), macho.N_SYMBOL_RESOLVER); const ordinal = @divTrunc(@as(i16, @bitCast(sym.n_desc)), macho.N_SYMBOL_RESOLVER);
@ -946,17 +955,13 @@ const MachODumper = struct {
break :blk basename[0..ext]; break :blk basename[0..ext];
}; };
try writer.writeAll("(undefined)"); try writer.writeAll("(undefined)");
if (sym.weakRef()) { if (sym.weakRef()) try writer.writeAll(" weakref");
try writer.writeAll(" weak"); if (sym.ext()) try writer.writeAll(" external");
}
if (sym.ext()) {
try writer.writeAll(" external");
}
try writer.print(" {s} (from {s})\n", .{ try writer.print(" {s} (from {s})\n", .{
sym_name, sym_name,
import_name, import_name,
}); });
} else unreachable; }
} }
} }
}; };

2
test/link/macho/unwind_info/build.zig
View File

@ -46,7 +46,7 @@ fn testUnwindInfo(
} }
check.checkInSymtab(); check.checkInSymtab();
check.checkContains("(__TEXT,__text) external ___gxx_personality_v0"); check.checkContains("(__TEXT,__text) private external ___gxx_personality_v0");
test_step.dependOn(&check.step); test_step.dependOn(&check.step);
const run = b.addRunArtifact(exe); const run = b.addRunArtifact(exe);

4
test/link/macho/weak_library/build.zig
View File

@ -42,10 +42,10 @@ fn add(b: *std.Build, test_step: *std.Build.Step, optimize: std.builtin.Optimize
check.checkExact("name @rpath/liba.dylib"); check.checkExact("name @rpath/liba.dylib");
check.checkInSymtab(); check.checkInSymtab();
check.checkExact("(undefined) weak external _a (from liba)"); check.checkExact("(undefined) weakref external _a (from liba)");
check.checkInSymtab(); check.checkInSymtab();
check.checkExact("(undefined) weak external _asStr (from liba)"); check.checkExact("(undefined) weakref external _asStr (from liba)");
test_step.dependOn(&check.step); test_step.dependOn(&check.step);
const run = b.addRunArtifact(exe); const run = b.addRunArtifact(exe);