Auto merge of #3246 - loongarch-rs:fix-loongarch, r=JohnTitor

Fix loongarch64 bindings

This PR aims to fix the LoongArch64 bindings and incorporate tests for LoongArch.

- libc-test: PASSED

Author: bors

libc-test/semver/linux-gnu-loongarch64.txt

@@ -0,0 +1,6 @@
+PTRACE_GETFPREGS
+PTRACE_SETFPREGS
+PTRACE_GETFPXREGS
+PTRACE_SETFPXREGS
+PTRACE_GETREGS
+PTRACE_SETREGS

libc-test/semver/linux-loongarch64.txt

@@ -0,0 +1,136 @@
+B2500000
+B3000000
+B3500000
+B4000000
+BPF_ABS
+BPF_ADD
+BPF_ALU
+BPF_B
+BPF_DIV
+BPF_H
+BPF_IMM
+BPF_IND
+BPF_JA
+BPF_JEQ
+BPF_JGE
+BPF_JGT
+BPF_JMP
+BPF_JUMP
+BPF_K
+BPF_LD
+BPF_LDX
+BPF_LEN
+BPF_LL_OFF
+BPF_MEM
+BPF_MISC
+BPF_MISCOP
+BPF_MOD
+BPF_MSH
+BPF_NEG
+BPF_NET_OFF
+BPF_RET
+BPF_RVAL
+BPF_ST
+BPF_STMT
+BPF_STX
+BPF_SUB
+BPF_W
+BPF_X
+BPF_XOR
+CIBAUD
+FICLONE
+FICLONERANGE
+flock64
+KEYCTL_CAPABILITIES
+KEYCTL_CAPS0_BIG_KEY
+KEYCTL_CAPS0_CAPABILITIES
+KEYCTL_CAPS0_DIFFIE_HELLMAN
+KEYCTL_CAPS0_INVALIDATE
+KEYCTL_CAPS0_MOVE
+KEYCTL_CAPS0_PERSISTENT_KEYRINGS
+KEYCTL_CAPS0_PUBLIC_KEY
+KEYCTL_CAPS0_RESTRICT_KEYRING
+KEYCTL_CAPS1_NS_KEYRING_NAME
+KEYCTL_CAPS1_NS_KEY_TAG
+KEYCTL_MOVE
+MADV_SOFT_OFFLINE
+MAP_SYNC
+NFT_MSG_DELOBJ
+NFT_MSG_GETOBJ
+NFT_MSG_GETOBJ_RESET
+NFT_MSG_NEWOBJ
+PTRACE_SYSEMU
+PTRACE_SYSEMU_SINGLESTEP
+SCM_TIMESTAMPNS
+SCM_WIFI_STATUS
+SIGSTKFLT
+SIGUNUSED
+SKF_AD_ALU_XOR_X
+SKF_AD_CPU
+SKF_AD_HATYPE
+SKF_AD_MARK
+SKF_AD_MAX
+SKF_AD_NLATTR
+SKF_AD_NLATTR_NEST
+SKF_AD_OFF
+SKF_AD_PAY_OFFSET
+SKF_AD_PKTTYPE
+SKF_AD_PROTOCOL
+SKF_AD_QUEUE
+SKF_AD_RANDOM
+SKF_AD_RXHASH
+SKF_AD_VLAN_TAG
+SKF_AD_VLAN_TAG_PRESENT
+SKF_AD_VLAN_TPID
+SKF_LL_OFF
+SKF_NET_OFF
+SO_ATTACH_BPF
+SO_ATTACH_FILTER
+SO_BPF_EXTENSIONS
+SO_BSDCOMPAT
+SO_DETACH_BPF
+SO_DETACH_FILTER
+SO_GET_FILTER
+SO_INCOMING_CPU
+SO_LOCK_FILTER
+SO_MAX_PACING_RATE
+SO_NO_CHECK
+SO_NOFCS
+SO_PEERNAME
+SO_PRIORITY
+SO_PROTOCOL
+SO_SECURITY_AUTHENTICATION
+SO_SECURITY_ENCRYPTION_NETWORK
+SO_SECURITY_ENCRYPTION_TRANSPORT
+SO_SELECT_ERR_QUEUE
+SO_TIMESTAMPNS
+SO_WIFI_STATUS
+SYS_accept
+SYS_msgctl
+SYS_msgget
+SYS_msgrcv
+SYS_msgsnd
+SYS_pkey_alloc
+SYS_pkey_free
+SYS_pkey_mprotect
+SYS_semctl
+SYS_semget
+SYS_semop
+SYS_semtimedop
+SYS_sendfile
+SYS_shmat
+SYS_shmctl
+SYS_shmdt
+SYS_shmget
+SYS_sync_file_range
+termios2
+TIOCCBRK
+TIOCGRS485
+TIOCSBRK
+TIOCSRS485
+XCASE
+max_align_t
+mcontext_t
+ucontext_t
+user_regs_struct
+user_fp_struct

src/unix/linux_like/linux/gnu/b64/loongarch64/align.rs

@@ -17,10 +17,10 @@ s! {
 
     #[repr(align(16))]
     pub struct mcontext_t {
-        pub sc_pc: ::c_ulonglong,
-        pub sc_regs: [::c_ulonglong; 32],
-        pub sc_flags: ::c_ulong,
-        pub sc_extcontext: [u64; 0],
+        pub __pc: ::c_ulonglong,
+        pub __gregs: [::c_ulonglong; 32],
+        pub __flags: ::c_uint,
+        pub __extcontext: [::c_ulonglong; 0],
     }
 
     #[repr(align(8))]

src/unix/linux_like/linux/gnu/b64/loongarch64/mod.rs

@@ -189,6 +189,21 @@ s! {
         __unused4: ::c_ulong,
         __unused5: ::c_ulong
     }
+
+    pub struct user_regs_struct {
+        pub regs: [u64; 32],
+        pub orig_a0: u64,
+        pub csr_era: u64,
+        pub csr_badv: u64,
+        pub reserved: [u64; 10],
+
+    }
+
+    pub struct user_fp_struct {
+        pub fpr: [u64; 32],
+        pub fcc: u64,
+        pub fcsr: u32,
+    }
 }
 
 pub const __SIZEOF_PTHREAD_CONDATTR_T: usize = 4;
@@ -549,7 +564,7 @@ pub const SYS_landlock_add_rule: ::c_long = 445;
 pub const SYS_landlock_restrict_self: ::c_long = 446;
 pub const SYS_process_mrelease: ::c_long = 448;
 pub const SYS_futex_waitv: ::c_long = 449;
-//pub const SYS_set_mempolicy_home_node: ::c_long = 450;
+pub const SYS_set_mempolicy_home_node: ::c_long = 450;
 
 pub const POSIX_FADV_DONTNEED: ::c_int = 4;
 pub const POSIX_FADV_NOREUSE: ::c_int = 5;
@@ -684,6 +699,8 @@ pub const ENOTRECOVERABLE: ::c_int = 131;
 pub const ERFKILL: ::c_int = 132;
 pub const EHWPOISON: ::c_int = 133;
 
+pub const MADV_SOFT_OFFLINE: ::c_int = 101;
+
 pub const MAP_NORESERVE: ::c_int = 0x4000;
 pub const MAP_ANONYMOUS: ::c_int = 0x0020;
 pub const MAP_ANON: ::c_int = 0x0020;
@@ -695,6 +712,7 @@ pub const MAP_POPULATE: ::c_int = 0x8000;
 pub const MAP_NONBLOCK: ::c_int = 0x10000;
 pub const MAP_STACK: ::c_int = 0x20000;
 pub const MAP_HUGETLB: ::c_int = 0x40000;
+pub const MAP_SYNC: ::c_int = 0x080000;
 pub const MCL_CURRENT: ::c_int = 0x0001;
 pub const MCL_FUTURE: ::c_int = 0x0002;
 pub const MCL_ONFAULT: ::c_int = 0x0004;
@@ -746,6 +764,8 @@ pub const PTRACE_GETFPXREGS: ::c_uint = 18;
 pub const PTRACE_SETFPXREGS: ::c_uint = 19;
 pub const PTRACE_GETREGS: ::c_uint = 12;
 pub const PTRACE_SETREGS: ::c_uint = 13;
+pub const PTRACE_SYSEMU: ::c_uint = 31;
+pub const PTRACE_SYSEMU_SINGLESTEP: ::c_uint = 32;
 
 pub const RTLD_DEEPBIND: ::c_int = 0x8;
 pub const RTLD_GLOBAL: ::c_int = 0x100;
@@ -846,6 +866,7 @@ pub const ECHOPRT: ::tcflag_t = 0x00000400;
 pub const ECHOCTL: ::tcflag_t = 0x00000200;
 pub const ISIG: ::tcflag_t = 0x00000001;
 pub const ICANON: ::tcflag_t = 0x00000002;
+pub const XCASE: ::tcflag_t = 0x00000004;
 pub const PENDIN: ::tcflag_t = 0x00004000;
 pub const NOFLSH: ::tcflag_t = 0x00000080;