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Fix BootServices.locateHandleLen() (#30877)

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Fixes https://codeberg.org/ziglang/zig/issues/30876

Reviewed-on: https://codeberg.org/ziglang/zig/pulls/30877
Reviewed-by: linus <mail@linusgroh.de>
Co-authored-by: just_some_entity <entity@jsentity.dev>
Co-committed-by: just_some_entity <entity@jsentity.dev>
This commit is contained in:
just_some_entity
2026-01-27 23:09:51 +01:00
committed by Alex Rønne Petersen
parent 1655a666d5
commit 06cf86abeb
1 changed files with 12 additions and 5 deletions
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lib/std/os/uefi/tables/boot_services.zig
+12 -5
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@@ -235,9 +235,7 @@ pub const BootServices = extern struct {
InvalidParameter,
};
pub const NumHandlesError = uefi.UnexpectedError || error{
OutOfResources,
};
pub const NumHandlesError = uefi.UnexpectedError;
pub const LocateHandleError = uefi.UnexpectedError || error{
BufferTooSmall,
@@ -702,8 +700,17 @@ pub const BootServices = extern struct {
&len,
null,
)) {
.success => return @divExact(len, @sizeOf(Handle)),
.out_of_resources => return error.OutOfResources,
// If len is zero, it should return not_found, otherwise buffer_too_small.
// This is because it can/should only return success when a valid buffer is
// passed with a non zero size, which is not the case.
// Thus this status is considered unreachable and will return error.Unexpected
// .success => unreachable,
.buffer_too_small => return @divExact(len, @sizeOf(uefi.Handle)),
.not_found => return 0,
// This function accounts for all possible causes of this error code
// as per the most recent UEFI spec 2.10A, therefore this branch is
// considered unreachable and will return error.Unexpected instead
// .invalid_parameter => unreachable
else => |status| return uefi.unexpectedStatus(status),
}
}