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glibc: Fix a benign bug when selecting the size of an object symbol.

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This didn't cause any problems in practice, but doing it this way is technically
more correct.
This commit is contained in:
Alex Rønne Petersen 2025-05-13 00:20:23 +02:00
parent 9e48e919e7
commit e52ffe6738
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1 changed files with 7 additions and 4 deletions
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11
src/libs/glibc.zig
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@ -966,6 +966,8 @@ pub fn buildSharedObjects(comp: *Compilation, prog_node: std.Progress.Node) anye
const obj_inclusions_len = try inc_reader.readInt(u16, .little);
var sizes = try arena.alloc(u16, metadata.all_versions.len);
sym_i = 0;
opt_symbol_name = null;
versions_buffer = undefined;
@ -1003,6 +1005,7 @@ pub fn buildSharedObjects(comp: *Compilation, prog_node: std.Progress.Node) anye
if (ok_lib_and_target and ver_i <= target_ver_index) {
versions_buffer[versions_len] = ver_i;
versions_len += 1;
sizes[ver_i] = size;
}
if (last) break;
}
@ -1066,14 +1069,14 @@ pub fn buildSharedObjects(comp: *Compilation, prog_node: std.Progress.Node) anye
sym_plus_ver,
sym_plus_ver,
sym_plus_ver,
size,
sizes[ver_index],
sym_plus_ver,
sym_name,
at_sign_str,
ver.major,
ver.minor,
sym_plus_ver,
size,
sizes[ver_index],
});
} else {
const sym_plus_ver = try std.fmt.allocPrint(
@ -1094,7 +1097,7 @@ pub fn buildSharedObjects(comp: *Compilation, prog_node: std.Progress.Node) anye
sym_plus_ver,
sym_plus_ver,
sym_plus_ver,
size,
sizes[ver_index],
sym_plus_ver,
sym_name,
at_sign_str,
@ -1102,7 +1105,7 @@ pub fn buildSharedObjects(comp: *Compilation, prog_node: std.Progress.Node) anye
ver.minor,
ver.patch,
sym_plus_ver,
size,
sizes[ver_index],
});
}
}