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link.Elf: truncate st_other to u3 before converting to std.elf.STV

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See 6b6e336e07308fd23f3061b5be11407956b2a460 for context, but note that in
gABI 4.3, 3 bits are reserved for the visibility, up from the previous 2.
This commit is contained in:
Alex Rønne Petersen 2025-09-04 00:52:11 +02:00
parent a82f446d91
commit 210b764c03
No known key found for this signature in database
3 changed files with 5 additions and 5 deletions
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4
src/link/Elf/Object.zig
View File

@ -634,7 +634,7 @@ pub fn claimUnresolved(self: *Object, elf_file: *Elf) void {
const is_import = blk: {
if (!elf_file.isEffectivelyDynLib()) break :blk false;
const vis = @as(elf.STV, @enumFromInt(esym.st_other));
const vis: elf.STV = @enumFromInt(@as(u3, @truncate(esym.st_other)));
if (vis == .HIDDEN) break :blk false;
break :blk true;
};
@ -707,7 +707,7 @@ pub fn markImportsExports(self: *Object, elf_file: *Elf) void {
const file = sym.file(elf_file).?;
// https://github.com/ziglang/zig/issues/21678
if (@as(u16, @bitCast(sym.version_index)) == @as(u16, @bitCast(elf.Versym.LOCAL))) continue;
const vis: elf.STV = @enumFromInt(sym.elfSym(elf_file).st_other);
const vis: elf.STV = @enumFromInt(@as(u3, @truncate(sym.elfSym(elf_file).st_other)));
if (vis == .HIDDEN) continue;
if (file == .shared_object and !sym.isAbs(elf_file)) {
sym.flags.import = true;

2
src/link/Elf/SharedObject.zig
View File

@ -357,7 +357,7 @@ pub fn markImportExports(self: *SharedObject, elf_file: *Elf) void {
const ref = self.resolveSymbol(@intCast(i), elf_file);
const ref_sym = elf_file.symbol(ref) orelse continue;
const ref_file = ref_sym.file(elf_file).?;
const vis = @as(elf.STV, @enumFromInt(ref_sym.elfSym(elf_file).st_other));
const vis: elf.STV = @enumFromInt(@as(u3, @truncate(ref_sym.elfSym(elf_file).st_other)));
if (ref_file != .shared_object and vis != .HIDDEN) ref_sym.flags.@"export" = true;
}
}

4
src/link/Elf/ZigObject.zig
View File

@ -617,7 +617,7 @@ pub fn claimUnresolved(self: *ZigObject, elf_file: *Elf) void {
const is_import = blk: {
if (!elf_file.isEffectivelyDynLib()) break :blk false;
const vis = @as(elf.STV, @enumFromInt(esym.st_other));
const vis: elf.STV = @enumFromInt(@as(u3, @truncate(esym.st_other)));
if (vis == .HIDDEN) break :blk false;
break :blk true;
};
@ -695,7 +695,7 @@ pub fn markImportsExports(self: *ZigObject, elf_file: *Elf) void {
const file = sym.file(elf_file).?;
// https://github.com/ziglang/zig/issues/21678
if (@as(u16, @bitCast(sym.version_index)) == @as(u16, @bitCast(elf.Versym.LOCAL))) continue;
const vis: elf.STV = @enumFromInt(sym.elfSym(elf_file).st_other);
const vis: elf.STV = @enumFromInt(@as(u3, @truncate(sym.elfSym(elf_file).st_other)));
if (vis == .HIDDEN) continue;
if (file == .shared_object and !sym.isAbs(elf_file)) {
sym.flags.import = true;