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/wmi.h b/libc/kernel/uapi/linux/wmi.h
index 26f54d9..7b72056 100644
--- a/libc/kernel/uapi/linux/wmi.h
+++ b/libc/kernel/uapi/linux/wmi.h
@@ -30,17 +30,17 @@
__u16 cmd_select;
volatile __u32 input[4];
volatile __u32 output[4];
-} __packed;
+} __attribute__((__packed__));
struct dell_wmi_extensions {
__u32 argattrib;
__u32 blength;
__u8 data[];
-} __packed;
+} __attribute__((__packed__));
struct dell_wmi_smbios_buffer {
__u64 length;
struct calling_interface_buffer std;
struct dell_wmi_extensions ext;
-} __packed;
+} __attribute__((__packed__));
#define CLASS_TOKEN_READ 0
#define CLASS_TOKEN_WRITE 1
#define SELECT_TOKEN_STD 0