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eadf20fda4
lede/toolchain/musl/patches/990-add_loongarch64_support.patch
coolsnowwolf eadf20fda4 toolchain/musl: add loogarch64 support
2024-01-14 22:45:29 +08:00

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>From 2d5f9717fda5c16f10d805ce8a26f1e78de440ea Mon Sep 17 00:00:00 2001
From: wanghongliang <wanghongliang@loongson.cn>
Date: Wed, 15 Nov 2023 01:31:51 +0800
Subject: [PATCH] add loongarch64 port v9.
Author: Xiaojuan Zhai <zhaixiaojuan@loongson.cn>
Author: Meidan Li <limeidan@loongson.cn>
Author: Guoqi Chen <chenguoqi@loongson.cn>
Author: Xiaolin Zhao <zhaoxiaolin@loongson.cn>
Author: Fan peng <fanpeng@loongson.cn>
Author: Jiantao Shan <shanjiantao@loongson.cn>
Author: Xuhui Qiang <qiangxuhui@loongson.cn>
Author: Jingyun Hua <huajingyun@loongson.cn>
Author: Liu xue <liuxue@loongson.cn>
Author: Hongliang Wang <wanghongliang@loongson.cn>
Signed-off-by: wanghongliang <wanghongliang@loongson.cn>
---
arch/loongarch64/atomic_arch.h | 53 ++++
arch/loongarch64/bits/alltypes.h.in | 18 ++
arch/loongarch64/bits/fenv.h | 20 ++
arch/loongarch64/bits/float.h | 16 ++
arch/loongarch64/bits/posix.h | 2 +
arch/loongarch64/bits/ptrace.h | 4 +
arch/loongarch64/bits/reg.h | 2 +
arch/loongarch64/bits/setjmp.h | 1 +
arch/loongarch64/bits/signal.h | 92 +++++++
arch/loongarch64/bits/stat.h | 18 ++
arch/loongarch64/bits/stdint.h | 20 ++
arch/loongarch64/bits/syscall.h.in | 303 +++++++++++++++++++++
arch/loongarch64/bits/user.h | 5 +
arch/loongarch64/crt_arch.h | 13 +
arch/loongarch64/pthread_arch.h | 11 +
arch/loongarch64/reloc.h | 29 ++
arch/loongarch64/syscall_arch.h | 137 ++++++++++
configure | 15 +
include/elf.h | 104 ++++++-
src/fenv/loongarch64/fenv.S | 78 ++++++
src/ldso/loongarch64/dlsym.s | 7 +
src/setjmp/loongarch64/longjmp.S | 32 +++
src/setjmp/loongarch64/setjmp.S | 34 +++
src/signal/loongarch64/restore.s | 10 +
src/signal/loongarch64/sigsetjmp.s | 25 ++
src/thread/loongarch64/__set_thread_area.s | 7 +
src/thread/loongarch64/__unmapself.s | 7 +
src/thread/loongarch64/clone.s | 28 ++
src/thread/loongarch64/syscall_cp.s | 29 ++
29 files changed, 1119 insertions(+), 1 deletion(-)
create mode 100644 arch/loongarch64/atomic_arch.h
create mode 100644 arch/loongarch64/bits/alltypes.h.in
create mode 100644 arch/loongarch64/bits/fenv.h
create mode 100644 arch/loongarch64/bits/float.h
create mode 100644 arch/loongarch64/bits/posix.h
create mode 100644 arch/loongarch64/bits/ptrace.h
create mode 100644 arch/loongarch64/bits/reg.h
create mode 100644 arch/loongarch64/bits/setjmp.h
create mode 100644 arch/loongarch64/bits/signal.h
create mode 100644 arch/loongarch64/bits/stat.h
create mode 100644 arch/loongarch64/bits/stdint.h
create mode 100644 arch/loongarch64/bits/syscall.h.in
create mode 100644 arch/loongarch64/bits/user.h
create mode 100644 arch/loongarch64/crt_arch.h
create mode 100644 arch/loongarch64/pthread_arch.h
create mode 100644 arch/loongarch64/reloc.h
create mode 100644 arch/loongarch64/syscall_arch.h
create mode 100644 src/fenv/loongarch64/fenv.S
create mode 100644 src/ldso/loongarch64/dlsym.s
create mode 100644 src/setjmp/loongarch64/longjmp.S
create mode 100644 src/setjmp/loongarch64/setjmp.S
create mode 100644 src/signal/loongarch64/restore.s
create mode 100644 src/signal/loongarch64/sigsetjmp.s
create mode 100644 src/thread/loongarch64/__set_thread_area.s
create mode 100644 src/thread/loongarch64/__unmapself.s
create mode 100644 src/thread/loongarch64/clone.s
create mode 100644 src/thread/loongarch64/syscall_cp.s
diff --git a/arch/loongarch64/atomic_arch.h b/arch/loongarch64/atomic_arch.h
new file mode 100644
index 00000000..2225d027
--- /dev/null
+++ b/arch/loongarch64/atomic_arch.h
@@ -0,0 +1,53 @@
+#define a_ll a_ll
+static inline int a_ll(volatile int *p)
+{
+ int v;
+ __asm__ __volatile__ (
+ "ll.w %0, %1"
+ : "=r"(v)
+ : "ZC"(*p));
+ return v;
+}
+
+#define a_sc a_sc
+static inline int a_sc(volatile int *p, int v)
+{
+ int r;
+ __asm__ __volatile__ (
+ "sc.w %0, %1"
+ : "=r"(r), "=ZC"(*p)
+ : "0"(v) : "memory");
+ return r;
+}
+
+#define a_ll_p a_ll_p
+static inline void *a_ll_p(volatile void *p)
+{
+ void *v;
+ __asm__ __volatile__ (
+ "ll.d %0, %1"
+ : "=r"(v)
+ : "ZC"(*(void *volatile *)p));
+ return v;
+}
+
+#define a_sc_p a_sc_p
+static inline int a_sc_p(volatile void *p, void *v)
+{
+ long r;
+ __asm__ __volatile__ (
+ "sc.d %0, %1"
+ : "=r"(r), "=ZC"(*(void *volatile *)p)
+ : "0"(v)
+ : "memory");
+ return r;
+}
+
+#define a_barrier a_barrier
+static inline void a_barrier()
+{
+ __asm__ __volatile__ ("dbar 0" : : : "memory");
+}
+
+#define a_pre_llsc a_barrier
+#define a_post_llsc a_barrier
diff --git a/arch/loongarch64/bits/alltypes.h.in b/arch/loongarch64/bits/alltypes.h.in
new file mode 100644
index 00000000..06db4096
--- /dev/null
+++ b/arch/loongarch64/bits/alltypes.h.in
@@ -0,0 +1,18 @@
+#define _Addr long
+#define _Int64 long
+#define _Reg long
+
+#define __BYTE_ORDER 1234
+#define __LONG_MAX 0x7fffffffffffffffL
+
+#ifndef __cplusplus
+TYPEDEF int wchar_t;
+#endif
+
+TYPEDEF float float_t;
+TYPEDEF double double_t;
+
+TYPEDEF struct { long long __ll; long double __ld; } max_align_t;
+
+TYPEDEF unsigned nlink_t;
+TYPEDEF int blksize_t;
diff --git a/arch/loongarch64/bits/fenv.h b/arch/loongarch64/bits/fenv.h
new file mode 100644
index 00000000..99e916e1
--- /dev/null
+++ b/arch/loongarch64/bits/fenv.h
@@ -0,0 +1,20 @@
+#define FE_INEXACT 0x010000
+#define FE_UNDERFLOW 0x020000
+#define FE_OVERFLOW 0x040000
+#define FE_DIVBYZERO 0x080000
+#define FE_INVALID 0x100000
+
+#define FE_ALL_EXCEPT 0x1F0000
+
+#define FE_TONEAREST 0x000
+#define FE_TOWARDZERO 0x100
+#define FE_UPWARD 0x200
+#define FE_DOWNWARD 0x300
+
+typedef unsigned fexcept_t;
+
+typedef struct {
+ unsigned int __cw;
+} fenv_t;
+
+#define FE_DFL_ENV ((const fenv_t *) -1)
diff --git a/arch/loongarch64/bits/float.h b/arch/loongarch64/bits/float.h
new file mode 100644
index 00000000..63e86d44
--- /dev/null
+++ b/arch/loongarch64/bits/float.h
@@ -0,0 +1,16 @@
+#define FLT_EVAL_METHOD 0
+
+#define LDBL_TRUE_MIN 6.47517511943802511092443895822764655e-4966L
+#define LDBL_MIN 3.36210314311209350626267781732175260e-4932L
+#define LDBL_MAX 1.18973149535723176508575932662800702e+4932L
+#define LDBL_EPSILON 1.92592994438723585305597794258492732e-34L
+
+#define LDBL_MANT_DIG 113
+#define LDBL_MIN_EXP (-16381)
+#define LDBL_MAX_EXP 16384
+
+#define LDBL_DIG 33
+#define LDBL_MIN_10_EXP (-4931)
+#define LDBL_MAX_10_EXP 4932
+
+#define DECIMAL_DIG 36
diff --git a/arch/loongarch64/bits/posix.h b/arch/loongarch64/bits/posix.h
new file mode 100644
index 00000000..c37b94c1
--- /dev/null
+++ b/arch/loongarch64/bits/posix.h
@@ -0,0 +1,2 @@
+#define _POSIX_V6_LP64_OFF64 1
+#define _POSIX_V7_LP64_OFF64 1
diff --git a/arch/loongarch64/bits/ptrace.h b/arch/loongarch64/bits/ptrace.h
new file mode 100644
index 00000000..dce2fa51
--- /dev/null
+++ b/arch/loongarch64/bits/ptrace.h
@@ -0,0 +1,4 @@
+#define PTRACE_GET_THREAD_AREA 25
+#define PTRACE_SET_THREAD_AREA 26
+#define PTRACE_GET_WATCH_REGS 0xd0
+#define PTRACE_SET_WATCH_REGS 0xd1
diff --git a/arch/loongarch64/bits/reg.h b/arch/loongarch64/bits/reg.h
new file mode 100644
index 00000000..2633f39d
--- /dev/null
+++ b/arch/loongarch64/bits/reg.h
@@ -0,0 +1,2 @@
+#undef __WORDSIZE
+#define __WORDSIZE 64
diff --git a/arch/loongarch64/bits/setjmp.h b/arch/loongarch64/bits/setjmp.h
new file mode 100644
index 00000000..4bfa374d
--- /dev/null
+++ b/arch/loongarch64/bits/setjmp.h
@@ -0,0 +1 @@
+typedef unsigned long __jmp_buf[23];
diff --git a/arch/loongarch64/bits/signal.h b/arch/loongarch64/bits/signal.h
new file mode 100644
index 00000000..e1d256e7
--- /dev/null
+++ b/arch/loongarch64/bits/signal.h
@@ -0,0 +1,92 @@
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+
+#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#define MINSIGSTKSZ 4096
+#define SIGSTKSZ 16384
+#endif
+
+#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+typedef unsigned long greg_t, gregset_t[32];
+
+struct sigcontext {
+ unsigned long sc_pc;
+ unsigned long sc_regs[32];
+ unsigned int sc_flags;
+ unsigned long sc_extcontext[] __attribute__((__aligned__(16)));
+};
+
+typedef struct {
+ unsigned long __pc;
+ unsigned long __gregs[32];
+ unsigned int __flags;
+ unsigned long __extcontext[] __attribute__((__aligned__(16)));
+} mcontext_t;
+#else
+typedef struct {
+ unsigned long __space[34];
+} mcontext_t;
+#endif
+
+struct sigaltstack {
+ void *ss_sp;
+ int ss_flags;
+ size_t ss_size;
+};
+
+typedef struct __ucontext
+{
+ unsigned long __uc_flags;
+ struct __ucontext *uc_link;
+ stack_t uc_stack;
+ sigset_t uc_sigmask;
+ long __uc_pad;
+ mcontext_t uc_mcontext;
+} ucontext_t;
+
+#define SA_NOCLDSTOP 1
+#define SA_NOCLDWAIT 2
+#define SA_SIGINFO 4
+#define SA_ONSTACK 0x08000000
+#define SA_RESTART 0x10000000
+#define SA_NODEFER 0x40000000
+#define SA_RESETHAND 0x80000000
+#define SA_RESTORER 0x0
+
+#endif
+
+#define SIGHUP 1
+#define SIGINT 2
+#define SIGQUIT 3
+#define SIGILL 4
+#define SIGTRAP 5
+#define SIGABRT 6
+#define SIGIOT SIGABRT
+#define SIGBUS 7
+#define SIGFPE 8
+#define SIGKILL 9
+#define SIGUSR1 10
+#define SIGSEGV 11
+#define SIGUSR2 12
+#define SIGPIPE 13
+#define SIGALRM 14
+#define SIGTERM 15
+#define SIGSTKFLT 16
+#define SIGCHLD 17
+#define SIGCONT 18
+#define SIGSTOP 19
+#define SIGTSTP 20
+#define SIGTTIN 21
+#define SIGTTOU 22
+#define SIGURG 23
+#define SIGXCPU 24
+#define SIGXFSZ 25
+#define SIGVTALRM 26
+#define SIGPROF 27
+#define SIGWINCH 28
+#define SIGIO 29
+#define SIGPOLL SIGIO
+#define SIGPWR 30
+#define SIGSYS 31
+#define SIGUNUSED SIGSYS
+#define _NSIG 65
diff --git a/arch/loongarch64/bits/stat.h b/arch/loongarch64/bits/stat.h
new file mode 100644
index 00000000..b7f4221b
--- /dev/null
+++ b/arch/loongarch64/bits/stat.h
@@ -0,0 +1,18 @@
+struct stat {
+ dev_t st_dev;
+ ino_t st_ino;
+ mode_t st_mode;
+ nlink_t st_nlink;
+ uid_t st_uid;
+ gid_t st_gid;
+ dev_t st_rdev;
+ unsigned long __pad;
+ off_t st_size;
+ blksize_t st_blksize;
+ int __pad2;
+ blkcnt_t st_blocks;
+ struct timespec st_atim;
+ struct timespec st_mtim;
+ struct timespec st_ctim;
+ unsigned __unused[2];
+};
diff --git a/arch/loongarch64/bits/stdint.h b/arch/loongarch64/bits/stdint.h
new file mode 100644
index 00000000..60c12499
--- /dev/null
+++ b/arch/loongarch64/bits/stdint.h
@@ -0,0 +1,20 @@
+typedef int32_t int_fast16_t;
+typedef int32_t int_fast32_t;
+typedef uint32_t uint_fast16_t;
+typedef uint32_t uint_fast32_t;
+
+#define INT_FAST16_MIN INT32_MIN
+#define INT_FAST32_MIN INT32_MIN
+
+#define INT_FAST16_MAX INT32_MAX
+#define INT_FAST32_MAX INT32_MAX
+
+#define UINT_FAST16_MAX UINT32_MAX
+#define UINT_FAST32_MAX UINT32_MAX
+
+#define INTPTR_MIN INT64_MIN
+#define INTPTR_MAX INT64_MAX
+#define UINTPTR_MAX UINT64_MAX
+#define PTRDIFF_MIN INT64_MIN
+#define PTRDIFF_MAX INT64_MAX
+#define SIZE_MAX UINT64_MAX
diff --git a/arch/loongarch64/bits/syscall.h.in b/arch/loongarch64/bits/syscall.h.in
new file mode 100644
index 00000000..0980e533
--- /dev/null
+++ b/arch/loongarch64/bits/syscall.h.in
@@ -0,0 +1,303 @@
+#define __NR_io_setup 0
+#define __NR_io_destroy 1
+#define __NR_io_submit 2
+#define __NR_io_cancel 3
+#define __NR_io_getevents 4
+#define __NR_setxattr 5
+#define __NR_lsetxattr 6
+#define __NR_fsetxattr 7
+#define __NR_getxattr 8
+#define __NR_lgetxattr 9
+#define __NR_fgetxattr 10
+#define __NR_listxattr 11
+#define __NR_llistxattr 12
+#define __NR_flistxattr 13
+#define __NR_removexattr 14
+#define __NR_lremovexattr 15
+#define __NR_fremovexattr 16
+#define __NR_getcwd 17
+#define __NR_lookup_dcookie 18
+#define __NR_eventfd2 19
+#define __NR_epoll_create1 20
+#define __NR_epoll_ctl 21
+#define __NR_epoll_pwait 22
+#define __NR_dup 23
+#define __NR_dup3 24
+#define __NR3264_fcntl 25
+#define __NR_inotify_init1 26
+#define __NR_inotify_add_watch 27
+#define __NR_inotify_rm_watch 28
+#define __NR_ioctl 29
+#define __NR_ioprio_set 30
+#define __NR_ioprio_get 31
+#define __NR_flock 32
+#define __NR_mknodat 33
+#define __NR_mkdirat 34
+#define __NR_unlinkat 35
+#define __NR_symlinkat 36
+#define __NR_linkat 37
+#define __NR_umount2 39
+#define __NR_mount 40
+#define __NR_pivot_root 41
+#define __NR_nfsservctl 42
+#define __NR3264_statfs 43
+#define __NR3264_fstatfs 44
+#define __NR3264_truncate 45
+#define __NR3264_ftruncate 46
+#define __NR_fallocate 47
+#define __NR_faccessat 48
+#define __NR_chdir 49
+#define __NR_fchdir 50
+#define __NR_chroot 51
+#define __NR_fchmod 52
+#define __NR_fchmodat 53
+#define __NR_fchownat 54
+#define __NR_fchown 55
+#define __NR_openat 56
+#define __NR_close 57
+#define __NR_vhangup 58
+#define __NR_pipe2 59
+#define __NR_quotactl 60
+#define __NR_getdents64 61
+#define __NR3264_lseek 62
+#define __NR_read 63
+#define __NR_write 64
+#define __NR_readv 65
+#define __NR_writev 66
+#define __NR_pread64 67
+#define __NR_pwrite64 68
+#define __NR_preadv 69
+#define __NR_pwritev 70
+#define __NR3264_sendfile 71
+#define __NR_pselect6 72
+#define __NR_ppoll 73
+#define __NR_signalfd4 74
+#define __NR_vmsplice 75
+#define __NR_splice 76
+#define __NR_tee 77
+#define __NR_readlinkat 78
+#define __NR_sync 81
+#define __NR_fsync 82
+#define __NR_fdatasync 83
+#define __NR_sync_file_range 84
+#define __NR_timerfd_create 85
+#define __NR_timerfd_settime 86
+#define __NR_timerfd_gettime 87
+#define __NR_utimensat 88
+#define __NR_acct 89
+#define __NR_capget 90
+#define __NR_capset 91
+#define __NR_personality 92
+#define __NR_exit 93
+#define __NR_exit_group 94
+#define __NR_waitid 95
+#define __NR_set_tid_address 96
+#define __NR_unshare 97
+#define __NR_futex 98
+#define __NR_set_robust_list 99
+#define __NR_get_robust_list 100
+#define __NR_nanosleep 101
+#define __NR_getitimer 102
+#define __NR_setitimer 103
+#define __NR_kexec_load 104
+#define __NR_init_module 105
+#define __NR_delete_module 106
+#define __NR_timer_create 107
+#define __NR_timer_gettime 108
+#define __NR_timer_getoverrun 109
+#define __NR_timer_settime 110
+#define __NR_timer_delete 111
+#define __NR_clock_settime 112
+#define __NR_clock_gettime 113
+#define __NR_clock_getres 114
+#define __NR_clock_nanosleep 115
+#define __NR_syslog 116
+#define __NR_ptrace 117
+#define __NR_sched_setparam 118
+#define __NR_sched_setscheduler 119
+#define __NR_sched_getscheduler 120
+#define __NR_sched_getparam 121
+#define __NR_sched_setaffinity 122
+#define __NR_sched_getaffinity 123
+#define __NR_sched_yield 124
+#define __NR_sched_get_priority_max 125
+#define __NR_sched_get_priority_min 126
+#define __NR_sched_rr_get_interval 127
+#define __NR_restart_syscall 128
+#define __NR_kill 129
+#define __NR_tkill 130
+#define __NR_tgkill 131
+#define __NR_sigaltstack 132
+#define __NR_rt_sigsuspend 133
+#define __NR_rt_sigaction 134
+#define __NR_rt_sigprocmask 135
+#define __NR_rt_sigpending 136
+#define __NR_rt_sigtimedwait 137
+#define __NR_rt_sigqueueinfo 138
+#define __NR_rt_sigreturn 139
+#define __NR_setpriority 140
+#define __NR_getpriority 141
+#define __NR_reboot 142
+#define __NR_setregid 143
+#define __NR_setgid 144
+#define __NR_setreuid 145
+#define __NR_setuid 146
+#define __NR_setresuid 147
+#define __NR_getresuid 148
+#define __NR_setresgid 149
+#define __NR_getresgid 150
+#define __NR_setfsuid 151
+#define __NR_setfsgid 152
+#define __NR_times 153
+#define __NR_setpgid 154
+#define __NR_getpgid 155
+#define __NR_getsid 156
+#define __NR_setsid 157
+#define __NR_getgroups 158
+#define __NR_setgroups 159
+#define __NR_uname 160
+#define __NR_sethostname 161
+#define __NR_setdomainname 162
+#define __NR_getrlimit 163
+#define __NR_setrlimit 164
+#define __NR_getrusage 165
+#define __NR_umask 166
+#define __NR_prctl 167
+#define __NR_getcpu 168
+#define __NR_gettimeofday 169
+#define __NR_settimeofday 170
+#define __NR_adjtimex 171
+#define __NR_getpid 172
+#define __NR_getppid 173
+#define __NR_getuid 174
+#define __NR_geteuid 175
+#define __NR_getgid 176
+#define __NR_getegid 177
+#define __NR_gettid 178
+#define __NR_sysinfo 179
+#define __NR_mq_open 180
+#define __NR_mq_unlink 181
+#define __NR_mq_timedsend 182
+#define __NR_mq_timedreceive 183
+#define __NR_mq_notify 184
+#define __NR_mq_getsetattr 185
+#define __NR_msgget 186
+#define __NR_msgctl 187
+#define __NR_msgrcv 188
+#define __NR_msgsnd 189
+#define __NR_semget 190
+#define __NR_semctl 191
+#define __NR_semtimedop 192
+#define __NR_semop 193
+#define __NR_shmget 194
+#define __NR_shmctl 195
+#define __NR_shmat 196
+#define __NR_shmdt 197
+#define __NR_socket 198
+#define __NR_socketpair 199
+#define __NR_bind 200
+#define __NR_listen 201
+#define __NR_accept 202
+#define __NR_connect 203
+#define __NR_getsockname 204
+#define __NR_getpeername 205
+#define __NR_sendto 206
+#define __NR_recvfrom 207
+#define __NR_setsockopt 208
+#define __NR_getsockopt 209
+#define __NR_shutdown 210
+#define __NR_sendmsg 211
+#define __NR_recvmsg 212
+#define __NR_readahead 213
+#define __NR_brk 214
+#define __NR_munmap 215
+#define __NR_mremap 216
+#define __NR_add_key 217
+#define __NR_request_key 218
+#define __NR_keyctl 219
+#define __NR_clone 220
+#define __NR_execve 221
+#define __NR3264_mmap 222
+#define __NR3264_fadvise64 223
+#define __NR_swapon 224
+#define __NR_swapoff 225
+#define __NR_mprotect 226
+#define __NR_msync 227
+#define __NR_mlock 228
+#define __NR_munlock 229
+#define __NR_mlockall 230
+#define __NR_munlockall 231
+#define __NR_mincore 232
+#define __NR_madvise 233
+#define __NR_remap_file_pages 234
+#define __NR_mbind 235
+#define __NR_get_mempolicy 236
+#define __NR_set_mempolicy 237
+#define __NR_migrate_pages 238
+#define __NR_move_pages 239
+#define __NR_rt_tgsigqueueinfo 240
+#define __NR_perf_event_open 241
+#define __NR_accept4 242
+#define __NR_recvmmsg 243
+#define __NR_arch_specific_syscall 244
+#define __NR_wait4 260
+#define __NR_prlimit64 261
+#define __NR_fanotify_init 262
+#define __NR_fanotify_mark 263
+#define __NR_name_to_handle_at 264
+#define __NR_open_by_handle_at 265
+#define __NR_clock_adjtime 266
+#define __NR_syncfs 267
+#define __NR_setns 268
+#define __NR_sendmmsg 269
+#define __NR_process_vm_readv 270
+#define __NR_process_vm_writev 271
+#define __NR_kcmp 272
+#define __NR_finit_module 273
+#define __NR_sched_setattr 274
+#define __NR_sched_getattr 275
+#define __NR_renameat2 276
+#define __NR_seccomp 277
+#define __NR_getrandom 278
+#define __NR_memfd_create 279
+#define __NR_bpf 280
+#define __NR_execveat 281
+#define __NR_userfaultfd 282
+#define __NR_membarrier 283
+#define __NR_mlock2 284
+#define __NR_copy_file_range 285
+#define __NR_preadv2 286
+#define __NR_pwritev2 287
+#define __NR_pkey_mprotect 288
+#define __NR_pkey_alloc 289
+#define __NR_pkey_free 290
+#define __NR_statx 291
+#define __NR_io_pgetevents 292
+#define __NR_rseq 293
+#define __NR_kexec_file_load 294
+#define __NR_pidfd_send_signal 424
+#define __NR_io_uring_setup 425
+#define __NR_io_uring_enter 426
+#define __NR_io_uring_register 427
+#define __NR_open_tree 428
+#define __NR_move_mount 429
+#define __NR_fsopen 430
+#define __NR_fsconfig 431
+#define __NR_fsmount 432
+#define __NR_fspick 433
+#define __NR_pidfd_open 434
+#define __NR_clone3 435
+#define __NR_close_range 436
+#define __NR_openat2 437
+#define __NR_pidfd_getfd 438
+#define __NR_faccessat2 439
+#define __NR_process_madvise 440
+#define __NR_fcntl __NR3264_fcntl
+#define __NR_statfs __NR3264_statfs
+#define __NR_fstatfs __NR3264_fstatfs
+#define __NR_truncate __NR3264_truncate
+#define __NR_ftruncate __NR3264_ftruncate
+#define __NR_lseek __NR3264_lseek
+#define __NR_sendfile __NR3264_sendfile
+#define __NR_mmap __NR3264_mmap
+#define __NR_fadvise64 __NR3264_fadvise64
diff --git a/arch/loongarch64/bits/user.h b/arch/loongarch64/bits/user.h
new file mode 100644
index 00000000..5a71d132
--- /dev/null
+++ b/arch/loongarch64/bits/user.h
@@ -0,0 +1,5 @@
+#define ELF_NGREG 45
+#define ELF_NFPREG 33
+
+typedef unsigned long elf_greg_t, elf_gregset_t[ELF_NGREG];
+typedef double elf_fpreg_t, elf_fpregset_t[ELF_NFPREG];
diff --git a/arch/loongarch64/crt_arch.h b/arch/loongarch64/crt_arch.h
new file mode 100644
index 00000000..e0760d9e
--- /dev/null
+++ b/arch/loongarch64/crt_arch.h
@@ -0,0 +1,13 @@
+__asm__(
+".text \n"
+".global " START "\n"
+".type " START ", @function\n"
+START ":\n"
+" move $fp, $zero\n"
+" move $a0, $sp\n"
+".weak _DYNAMIC\n"
+".hidden _DYNAMIC\n"
+" la.local $a1, _DYNAMIC\n"
+" bstrins.d $sp, $zero, 3, 0\n"
+" b " START "_c\n"
+);
diff --git a/arch/loongarch64/pthread_arch.h b/arch/loongarch64/pthread_arch.h
new file mode 100644
index 00000000..28fbfcd1
--- /dev/null
+++ b/arch/loongarch64/pthread_arch.h
@@ -0,0 +1,11 @@
+static inline uintptr_t __get_tp()
+{
+ uintptr_t tp;
+ __asm__ __volatile__("move %0, $tp" : "=r"(tp));
+ return tp;
+}
+
+#define TLS_ABOVE_TP
+#define GAP_ABOVE_TP 0
+#define DTP_OFFSET 0
+#define MC_PC __pc
diff --git a/arch/loongarch64/reloc.h b/arch/loongarch64/reloc.h
new file mode 100644
index 00000000..6907de8e
--- /dev/null
+++ b/arch/loongarch64/reloc.h
@@ -0,0 +1,29 @@
+#if defined __loongarch_double_float
+#define FP_SUFFIX "-lp64d"
+#elif defined __loongarch_single_float
+#define FP_SUFFIX "-lp64f"
+#elif defined __loongarch_soft_float
+#define FP_SUFFIX "-lp64s"
+#endif
+
+#define LDSO_ARCH "loongarch64" FP_SUFFIX
+
+#define TPOFF_K 0
+
+#define REL_PLT R_LARCH_JUMP_SLOT
+#define REL_COPY R_LARCH_COPY
+#define REL_DTPMOD R_LARCH_TLS_DTPMOD64
+#define REL_DTPOFF R_LARCH_TLS_DTPREL64
+#define REL_TPOFF R_LARCH_TLS_TPREL64
+#define REL_RELATIVE R_LARCH_RELATIVE
+#define REL_SYMBOLIC R_LARCH_64
+
+#define CRTJMP(pc,sp) __asm__ __volatile__( \
+ "move $sp, %1 ; jr %0" : : "r"(pc), "r"(sp) : "memory" )
+
+#define GETFUNCSYM(fp, sym, got) __asm__ ( \
+ ".hidden " #sym "\n" \
+ ".align 8 \n" \
+ " la.local $t1, "#sym" \n" \
+ " move %0, $t1 \n" \
+ : "=r"(*(fp)) : : "memory" )
diff --git a/arch/loongarch64/syscall_arch.h b/arch/loongarch64/syscall_arch.h
new file mode 100644
index 00000000..4d5e1885
--- /dev/null
+++ b/arch/loongarch64/syscall_arch.h
@@ -0,0 +1,137 @@
+#define __SYSCALL_LL_E(x) (x)
+#define __SYSCALL_LL_O(x) (x)
+
+#define SYSCALL_CLOBBERLIST \
+ "$t0", "$t1", "$t2", "$t3", \
+ "$t4", "$t5", "$t6", "$t7", "$t8", "memory"
+
+static inline long __syscall0(long n)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0");
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "=r"(a0)
+ : "r"(a7)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall1(long n, long a)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall2(long n, long a, long b)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall3(long n, long a, long b, long c)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall4(long n, long a, long b, long c, long d)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+ register long a3 __asm__("$a3") = d;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2), "r"(a3)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall5(long n, long a, long b, long c, long d, long e)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+ register long a3 __asm__("$a3") = d;
+ register long a4 __asm__("$a4") = e;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall6(long n, long a, long b, long c, long d, long e, long f)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+ register long a3 __asm__("$a3") = d;
+ register long a4 __asm__("$a4") = e;
+ register long a5 __asm__("$a5") = f;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4), "r"(a5)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+static inline long __syscall7(long n, long a, long b, long c, long d, long e, long f, long g)
+{
+ register long a7 __asm__("$a7") = n;
+ register long a0 __asm__("$a0") = a;
+ register long a1 __asm__("$a1") = b;
+ register long a2 __asm__("$a2") = c;
+ register long a3 __asm__("$a3") = d;
+ register long a4 __asm__("$a4") = e;
+ register long a5 __asm__("$a5") = f;
+ register long a6 __asm__("$a6") = g;
+
+ __asm__ __volatile__ (
+ "syscall 0"
+ : "+r"(a0)
+ : "r"(a7), "r"(a1), "r"(a2), "r"(a3), "r"(a4), "r"(a5), "r"(a6)
+ : SYSCALL_CLOBBERLIST);
+ return a0;
+}
+
+#define VDSO_USEFUL
+#define VDSO_CGT_SYM "__vdso_clock_gettime"
+#define VDSO_CGT_VER "LINUX_5.10"
+
+#define IPC_64 0
diff --git a/configure b/configure
index 0b966ede..93b06287 100755
--- a/configure
+++ b/configure
@@ -328,6 +328,7 @@ i?86*) ARCH=i386 ;;
x86_64-x32*|x32*|x86_64*x32) ARCH=x32 ;;
x86_64-nt64*) ARCH=nt64 ;;
x86_64*) ARCH=x86_64 ;;
+loongarch64*) ARCH=loongarch64 ;;
m68k*) ARCH=m68k ;;
mips64*|mipsisa64*) ARCH=mips64 ;;
mips*) ARCH=mips ;;
@@ -671,6 +672,20 @@ if test "$ARCH" = "aarch64" ; then
trycppif __AARCH64EB__ "$t" && SUBARCH=${SUBARCH}_be
fi
+if test "$ARCH" = "loongarch64" ; then
+trycppif __loongarch_double_float "$t" && SUBARCH=${SUBARCH}-lp64d
+trycppif __loongarch_single_float "$t" && SUBARCH=${SUBARCH}-lp64f
+trycppif __loongarch_soft_float "$t" && SUBARCH=${SUBARCH}-lp64s
+printf "checking whether compiler support FCSRs... "
+echo "__asm__(\"movfcsr2gr \$t0,\$fcsr0\");" > "$tmpc"
+if $CC -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
+printf "yes\n"
+else
+printf "no\n"
+CFLAGS_AUTO="$CFLAGS_AUTO -DBROKEN_LOONGARCH_FCSR_ASM"
+fi
+fi
+
if test "$ARCH" = "m68k" ; then
if trycppif "__HAVE_68881__" ; then : ;
elif trycppif "__mcffpu__" ; then SUBARCH="-fp64"
diff --git a/include/elf.h b/include/elf.h
index 23f2c4bc..7114f262 100644
--- a/include/elf.h
+++ b/include/elf.h
@@ -315,7 +315,8 @@ typedef struct {
#define EM_RISCV 243
#define EM_BPF 247
#define EM_CSKY 252
-#define EM_NUM 253
+#define EM_LOONGARCH 258
+#define EM_NUM 259
#define EM_ALPHA 0x9026
@@ -699,6 +700,11 @@ typedef struct {
#define NT_MIPS_FP_MODE 0x801
#define NT_MIPS_MSA 0x802
#define NT_VERSION 1
+#define NT_LOONGARCH_CPUCFG 0xa00
+#define NT_LOONGARCH_CSR 0xa01
+#define NT_LOONGARCH_LSX 0xa02
+#define NT_LOONGARCH_LASX 0xa03
+#define NT_LOONGARCH_LBT 0xa04
@@ -3293,6 +3299,102 @@ enum
#define R_RISCV_SET32 56
#define R_RISCV_32_PCREL 57
+#define EF_LARCH_ABI_MODIFIER_MASK 0x07
+#define EF_LARCH_ABI_SOFT_FLOAT 0x01
+#define EF_LARCH_ABI_SINGLE_FLOAT 0x02
+#define EF_LARCH_ABI_DOUBLE_FLOAT 0x03
+#define EF_LARCH_OBJABI_V1 0x40
+
+#define R_LARCH_NONE 0
+#define R_LARCH_32 1
+#define R_LARCH_64 2
+#define R_LARCH_RELATIVE 3
+#define R_LARCH_COPY 4
+#define R_LARCH_JUMP_SLOT 5
+#define R_LARCH_TLS_DTPMOD32 6
+#define R_LARCH_TLS_DTPMOD64 7
+#define R_LARCH_TLS_DTPREL32 8
+#define R_LARCH_TLS_DTPREL64 9
+#define R_LARCH_TLS_TPREL32 10
+#define R_LARCH_TLS_TPREL64 11
+#define R_LARCH_IRELATIVE 12
+#define R_LARCH_MARK_LA 20
+#define R_LARCH_MARK_PCREL 21
+#define R_LARCH_SOP_PUSH_PCREL 22
+#define R_LARCH_SOP_PUSH_ABSOLUTE 23
+#define R_LARCH_SOP_PUSH_DUP 24
+#define R_LARCH_SOP_PUSH_GPREL 25
+#define R_LARCH_SOP_PUSH_TLS_TPREL 26
+#define R_LARCH_SOP_PUSH_TLS_GOT 27
+#define R_LARCH_SOP_PUSH_TLS_GD 28
+#define R_LARCH_SOP_PUSH_PLT_PCREL 29
+#define R_LARCH_SOP_ASSERT 30
+#define R_LARCH_SOP_NOT 31
+#define R_LARCH_SOP_SUB 32
+#define R_LARCH_SOP_SL 33
+#define R_LARCH_SOP_SR 34
+#define R_LARCH_SOP_ADD 35
+#define R_LARCH_SOP_AND 36
+#define R_LARCH_SOP_IF_ELSE 37
+#define R_LARCH_SOP_POP_32_S_10_5 38
+#define R_LARCH_SOP_POP_32_U_10_12 39
+#define R_LARCH_SOP_POP_32_S_10_12 40
+#define R_LARCH_SOP_POP_32_S_10_16 41
+#define R_LARCH_SOP_POP_32_S_10_16_S2 42
+#define R_LARCH_SOP_POP_32_S_5_20 43
+#define R_LARCH_SOP_POP_32_S_0_5_10_16_S2 44
+#define R_LARCH_SOP_POP_32_S_0_10_10_16_S2 45
+#define R_LARCH_SOP_POP_32_U 46
+#define R_LARCH_ADD8 47
+#define R_LARCH_ADD16 48
+#define R_LARCH_ADD24 49
+#define R_LARCH_ADD32 50
+#define R_LARCH_ADD64 51
+#define R_LARCH_SUB8 52
+#define R_LARCH_SUB16 53
+#define R_LARCH_SUB24 54
+#define R_LARCH_SUB32 55
+#define R_LARCH_SUB64 56
+#define R_LARCH_GNU_VTINHERIT 57
+#define R_LARCH_GNU_VTENTRY 58
+#define R_LARCH_B16 64
+#define R_LARCH_B21 65
+#define R_LARCH_B26 66
+#define R_LARCH_ABS_HI20 67
+#define R_LARCH_ABS_LO12 68
+#define R_LARCH_ABS64_LO20 69
+#define R_LARCH_ABS64_HI12 70
+#define R_LARCH_PCALA_HI20 71
+#define R_LARCH_PCALA_LO12 72
+#define R_LARCH_PCALA64_LO20 73
+#define R_LARCH_PCALA64_HI12 74
+#define R_LARCH_GOT_PC_HI20 75
+#define R_LARCH_GOT_PC_LO12 76
+#define R_LARCH_GOT64_PC_LO20 77
+#define R_LARCH_GOT64_PC_HI12 78
+#define R_LARCH_GOT_HI20 79
+#define R_LARCH_GOT_LO12 80
+#define R_LARCH_GOT64_LO20 81
+#define R_LARCH_GOT64_HI12 82
+#define R_LARCH_TLS_LE_HI20 83
+#define R_LARCH_TLS_LE_LO12 84
+#define R_LARCH_TLS_LE64_LO20 85
+#define R_LARCH_TLS_LE64_HI12 86
+#define R_LARCH_TLS_IE_PC_HI20 87
+#define R_LARCH_TLS_IE_PC_LO12 88
+#define R_LARCH_TLS_IE64_PC_LO20 89
+#define R_LARCH_TLS_IE64_PC_HI12 90
+#define R_LARCH_TLS_IE_HI20 91
+#define R_LARCH_TLS_IE_LO12 92
+#define R_LARCH_TLS_IE64_LO20 93
+#define R_LARCH_TLS_IE64_HI12 94
+#define R_LARCH_TLS_LD_PC_HI20 95
+#define R_LARCH_TLS_LD_HI20 96
+#define R_LARCH_TLS_GD_PC_HI20 97
+#define R_LARCH_TLS_GD_HI20 98
+#define R_LARCH_32_PCREL 99
+#define R_LARCH_RELAX 100
+
#ifdef __cplusplus
}
#endif
diff --git a/src/fenv/loongarch64/fenv.S b/src/fenv/loongarch64/fenv.S
new file mode 100644
index 00000000..54064e01
--- /dev/null
+++ b/src/fenv/loongarch64/fenv.S
@@ -0,0 +1,78 @@
+#ifndef __loongarch_soft_float
+
+#ifdef BROKEN_LOONGARCH_FCSR_ASM
+#define FCSR $r0
+#else
+#define FCSR $fcsr0
+#endif
+
+.global feclearexcept
+.type feclearexcept,@function
+feclearexcept:
+ li.w $t0, 0x1f0000
+ and $a0, $a0, $t0
+ movfcsr2gr $t1, FCSR
+ andn $t1, $t1, $a0
+ movgr2fcsr FCSR, $t1
+ li.w $a0, 0
+ jr $ra
+
+.global feraiseexcept
+.type feraiseexcept,@function
+feraiseexcept:
+ li.w $t0, 0x1f0000
+ and $a0, $a0, $t0
+ movfcsr2gr $t1, FCSR
+ or $t1, $t1, $a0
+ movgr2fcsr FCSR, $t1
+ li.w $a0, 0
+ jr $ra
+
+.global fetestexcept
+.type fetestexcept,@function
+fetestexcept:
+ li.w $t0, 0x1f0000
+ and $a0, $a0, $t0
+ movfcsr2gr $t1, FCSR
+ and $a0, $t1, $a0
+ jr $ra
+
+.global fegetround
+.type fegetround,@function
+fegetround:
+ movfcsr2gr $t0, FCSR
+ andi $a0, $t0, 0x300
+ jr $ra
+
+.global __fesetround
+.hidden __fesetround
+.type __fesetround,@function
+__fesetround:
+ li.w $t0, 0x300
+ and $a0, $a0, $t0
+ movfcsr2gr $t1, FCSR
+ andn $t1, $t1, $t0
+ or $t1, $t1, $a0
+ movgr2fcsr FCSR, $t1
+ li.w $a0, 0
+ jr $ra
+
+.global fegetenv
+.type fegetenv,@function
+fegetenv:
+ movfcsr2gr $t0, FCSR
+ st.w $t0, $a0, 0
+ li.w $a0, 0
+ jr $ra
+
+.global fesetenv
+.type fesetenv,@function
+fesetenv:
+ addi.d $t0, $a0, 1
+ beq $t0, $r0, 1f
+ ld.w $t0, $a0, 0
+1: movgr2fcsr FCSR, $t0
+ li.w $a0, 0
+ jr $ra
+
+#endif
diff --git a/src/ldso/loongarch64/dlsym.s b/src/ldso/loongarch64/dlsym.s
new file mode 100644
index 00000000..26fabcdb
--- /dev/null
+++ b/src/ldso/loongarch64/dlsym.s
@@ -0,0 +1,7 @@
+.global dlsym
+.hidden __dlsym
+.type dlsym,@function
+dlsym:
+ move $a2, $ra
+ la.global $t0, __dlsym
+ jr $t0
diff --git a/src/setjmp/loongarch64/longjmp.S b/src/setjmp/loongarch64/longjmp.S
new file mode 100644
index 00000000..896d2e26
--- /dev/null
+++ b/src/setjmp/loongarch64/longjmp.S
@@ -0,0 +1,32 @@
+.global _longjmp
+.global longjmp
+.type _longjmp,@function
+.type longjmp,@function
+_longjmp:
+longjmp:
+ ld.d $ra, $a0, 0
+ ld.d $sp, $a0, 8
+ ld.d $r21,$a0, 16
+ ld.d $fp, $a0, 24
+ ld.d $s0, $a0, 32
+ ld.d $s1, $a0, 40
+ ld.d $s2, $a0, 48
+ ld.d $s3, $a0, 56
+ ld.d $s4, $a0, 64
+ ld.d $s5, $a0, 72
+ ld.d $s6, $a0, 80
+ ld.d $s7, $a0, 88
+ ld.d $s8, $a0, 96
+#ifndef __loongarch_soft_float
+ fld.d $fs0, $a0, 104
+ fld.d $fs1, $a0, 112
+ fld.d $fs2, $a0, 120
+ fld.d $fs3, $a0, 128
+ fld.d $fs4, $a0, 136
+ fld.d $fs5, $a0, 144
+ fld.d $fs6, $a0, 152
+ fld.d $fs7, $a0, 160
+#endif
+ sltui $a0, $a1, 1
+ add.d $a0, $a0, $a1
+ jr $ra
diff --git a/src/setjmp/loongarch64/setjmp.S b/src/setjmp/loongarch64/setjmp.S
new file mode 100644
index 00000000..d158a3d2
--- /dev/null
+++ b/src/setjmp/loongarch64/setjmp.S
@@ -0,0 +1,34 @@
+.global __setjmp
+.global _setjmp
+.global setjmp
+.type __setjmp,@function
+.type _setjmp,@function
+.type setjmp,@function
+__setjmp:
+_setjmp:
+setjmp:
+ st.d $ra, $a0, 0
+ st.d $sp, $a0, 8
+ st.d $r21,$a0, 16
+ st.d $fp, $a0, 24
+ st.d $s0, $a0, 32
+ st.d $s1, $a0, 40
+ st.d $s2, $a0, 48
+ st.d $s3, $a0, 56
+ st.d $s4, $a0, 64
+ st.d $s5, $a0, 72
+ st.d $s6, $a0, 80
+ st.d $s7, $a0, 88
+ st.d $s8, $a0, 96
+#ifndef __loongarch_soft_float
+ fst.d $fs0, $a0, 104
+ fst.d $fs1, $a0, 112
+ fst.d $fs2, $a0, 120
+ fst.d $fs3, $a0, 128
+ fst.d $fs4, $a0, 136
+ fst.d $fs5, $a0, 144
+ fst.d $fs6, $a0, 152
+ fst.d $fs7, $a0, 160
+#endif
+ move $a0, $zero
+ jr $ra
diff --git a/src/signal/loongarch64/restore.s b/src/signal/loongarch64/restore.s
new file mode 100644
index 00000000..f8e6daeb
--- /dev/null
+++ b/src/signal/loongarch64/restore.s
@@ -0,0 +1,10 @@
+.global __restore_rt
+.global __restore
+.hidden __restore_rt
+.hidden __restore
+.type __restore_rt,@function
+.type __restore,@function
+__restore_rt:
+__restore:
+ li.w $a7, 139
+ syscall 0
diff --git a/src/signal/loongarch64/sigsetjmp.s b/src/signal/loongarch64/sigsetjmp.s
new file mode 100644
index 00000000..992ab1a4
--- /dev/null
+++ b/src/signal/loongarch64/sigsetjmp.s
@@ -0,0 +1,25 @@
+.global sigsetjmp
+.global __sigsetjmp
+.type sigsetjmp,@function
+.type __sigsetjmp,@function
+sigsetjmp:
+__sigsetjmp:
+ beq $a1, $zero, 1f
+ st.d $ra, $a0, 168
+ st.d $s0, $a0, 176
+ move $s0, $a0
+
+ la.global $t0, setjmp
+ jirl $ra, $t0, 0
+
+ move $a1, $a0 # Return from 'setjmp' or 'longjmp'
+ move $a0, $s0
+ ld.d $ra, $a0, 168
+ ld.d $s0, $a0, 176
+
+.hidden __sigsetjmp_tail
+ la.global $t0, __sigsetjmp_tail
+ jr $t0
+1:
+ la.global $t0, setjmp
+ jr $t0
diff --git a/src/thread/loongarch64/__set_thread_area.s b/src/thread/loongarch64/__set_thread_area.s
new file mode 100644
index 00000000..ffdd52f1
--- /dev/null
+++ b/src/thread/loongarch64/__set_thread_area.s
@@ -0,0 +1,7 @@
+.global __set_thread_area
+.hidden __set_thread_area
+.type __set_thread_area,@function
+__set_thread_area:
+ move $tp, $a0
+ move $a0, $zero
+ jr $ra
diff --git a/src/thread/loongarch64/__unmapself.s b/src/thread/loongarch64/__unmapself.s
new file mode 100644
index 00000000..1de334af
--- /dev/null
+++ b/src/thread/loongarch64/__unmapself.s
@@ -0,0 +1,7 @@
+.global __unmapself
+.type __unmapself, @function
+__unmapself:
+ li.d $a7, 215 # call munmap
+ syscall 0
+ li.d $a7, 93 # call exit
+ syscall 0
diff --git a/src/thread/loongarch64/clone.s b/src/thread/loongarch64/clone.s
new file mode 100644
index 00000000..db9015e6
--- /dev/null
+++ b/src/thread/loongarch64/clone.s
@@ -0,0 +1,28 @@
+#__clone(func, stack, flags, arg, ptid, tls, ctid)
+# a0, a1, a2, a3, a4, a5, a6
+# sys_clone(flags, stack, ptid, ctid, tls)
+# a0, a1, a2, a3, a4
+
+.global __clone
+.hidden __clone
+.type __clone,@function
+__clone:
+ # Save function pointer and argument pointer on new thread stack
+ addi.d $a1, $a1, -16
+ st.d $a0, $a1, 0 # save function pointer
+ st.d $a3, $a1, 8 # save argument pointer
+ or $a0, $a2, $zero
+ or $a2, $a4, $zero
+ or $a3, $a6, $zero
+ or $a4, $a5, $zero
+ ori $a7, $zero, 220
+ syscall 0 # call clone
+
+ beqz $a0, 1f # whether child process
+ jirl $zero, $ra, 0 # parent process return
+1:
+ ld.d $t8, $sp, 0 # function pointer
+ ld.d $a0, $sp, 8 # argument pointer
+ jirl $ra, $t8, 0 # call the user's function
+ ori $a7, $zero, 93
+ syscall 0 # child process exit
diff --git a/src/thread/loongarch64/syscall_cp.s b/src/thread/loongarch64/syscall_cp.s
new file mode 100644
index 00000000..0fbc7a47
--- /dev/null
+++ b/src/thread/loongarch64/syscall_cp.s
@@ -0,0 +1,29 @@
+.global __cp_begin
+.hidden __cp_begin
+.global __cp_end
+.hidden __cp_end
+.global __cp_cancel
+.hidden __cp_cancel
+.hidden __cancel
+.global __syscall_cp_asm
+.hidden __syscall_cp_asm
+.type __syscall_cp_asm,@function
+
+__syscall_cp_asm:
+__cp_begin:
+ ld.w $a0, $a0, 0
+ bnez $a0, __cp_cancel
+ move $t8, $a1 # reserve system call number
+ move $a0, $a2
+ move $a1, $a3
+ move $a2, $a4
+ move $a3, $a5
+ move $a4, $a6
+ move $a5, $a7
+ move $a7, $t8
+ syscall 0
+__cp_end:
+ jr $ra
+__cp_cancel:
+ la.local $t8, __cancel
+ jr $t8
--
2.37.1
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