Replace __packed with __attribute__((__packed__)) in uapi headers
Linux uapi headers use __packed as an abbreviation for
__attribute__((__packed__)). In the upstream kernel headers this
is defined in linux/compiler_attributes.h, but it is not defined
in the uapi headers. Bionic defines it in sys/cdefs.h, which will
almost always provide the needed definition, but there are uapi
headers that use __packed and do not include any system headers
that would include sys/cdefs.h. Musl's sys/cdefs.h does not
define __packed, which leads to linker errors when __packed is
treated as a variable name.
Replace __packed with __attribute__((__packed__)) when importing
uapi headers to break the dependency on sys/cdefs.h.
Test: m USE_HOST_MUSL=true on oriole-userdebug in internal master
Change-Id: I45f80f4e5aec868b80ce8eb9d757a3e08ae3e1a9
diff --git a/libc/kernel/uapi/linux/dns_resolver.h b/libc/kernel/uapi/linux/dns_resolver.h
index 21cb5c0..e7113d0 100644
--- a/libc/kernel/uapi/linux/dns_resolver.h
+++ b/libc/kernel/uapi/linux/dns_resolver.h
@@ -55,13 +55,13 @@
__u8 zero;
__u8 content;
__u8 version;
-} __packed;
+} __attribute__((__packed__));
struct dns_server_list_v1_header {
struct dns_payload_header hdr;
__u8 source;
__u8 status;
__u8 nr_servers;
-} __packed;
+} __attribute__((__packed__));
struct dns_server_list_v1_server {
__u16 name_len;
__u16 priority;
@@ -71,8 +71,8 @@
__u8 status;
__u8 protocol;
__u8 nr_addrs;
-} __packed;
+} __attribute__((__packed__));
struct dns_server_list_v1_address {
__u8 address_type;
-} __packed;
+} __attribute__((__packed__));
#endif