From 01d9fe4d9f7cce7a6dbaece0e2e405a2e3279244 Mon Sep 17 00:00:00 2001 From: Stefan O'Rear Date: Thu, 3 Sep 2020 05:40:29 -0400 Subject: riscv32: add arch headers These are mostly copied from riscv64. _Addr and _Reg had to become int to match compiler-controlled parts of the ABI (result type of sizeof, etc.). There is no kernel stat struct; the userspace stat matches glibc in the sizes and offsets of all fields (including glibc's __dev_t __pad1). The jump buffer is 12 words larger to account for 12 saved double-precision floats; additionally it should be 64-bit aligned to save doubles. The syscall list was significantly revised by deleting all time32 and pre-statx syscalls, and renaming several syscalls that have different names depending on __BITS_PER_LONG, notably mmap2 and _llseek. futex was added as an alias to futex_time64 since it is widely used by software which does not pass time arguments. --- arch/riscv32/atomic_arch.h | 21 +++ arch/riscv32/bits/alltypes.h.in | 18 +++ arch/riscv32/bits/fenv.h | 17 +++ arch/riscv32/bits/float.h | 16 +++ arch/riscv32/bits/posix.h | 2 + arch/riscv32/bits/reg.h | 2 + arch/riscv32/bits/setjmp.h | 1 + arch/riscv32/bits/signal.h | 118 +++++++++++++++++ arch/riscv32/bits/stat.h | 18 +++ arch/riscv32/bits/stdint.h | 20 +++ arch/riscv32/bits/syscall.h.in | 286 ++++++++++++++++++++++++++++++++++++++++ arch/riscv32/bits/user.h | 6 + arch/riscv32/crt_arch.h | 19 +++ arch/riscv32/kstat.h | 0 arch/riscv32/pthread_arch.h | 13 ++ arch/riscv32/reloc.h | 22 ++++ arch/riscv32/syscall_arch.h | 80 +++++++++++ 17 files changed, 659 insertions(+) create mode 100644 arch/riscv32/atomic_arch.h create mode 100644 arch/riscv32/bits/alltypes.h.in create mode 100644 arch/riscv32/bits/fenv.h create mode 100644 arch/riscv32/bits/float.h create mode 100644 arch/riscv32/bits/posix.h create mode 100644 arch/riscv32/bits/reg.h create mode 100644 arch/riscv32/bits/setjmp.h create mode 100644 arch/riscv32/bits/signal.h create mode 100644 arch/riscv32/bits/stat.h create mode 100644 arch/riscv32/bits/stdint.h create mode 100644 arch/riscv32/bits/syscall.h.in create mode 100644 arch/riscv32/bits/user.h create mode 100644 arch/riscv32/crt_arch.h create mode 100644 arch/riscv32/kstat.h create mode 100644 arch/riscv32/pthread_arch.h create mode 100644 arch/riscv32/reloc.h create mode 100644 arch/riscv32/syscall_arch.h (limited to 'arch') diff --git a/arch/riscv32/atomic_arch.h b/arch/riscv32/atomic_arch.h new file mode 100644 index 00000000..4d418f63 --- /dev/null +++ b/arch/riscv32/atomic_arch.h @@ -0,0 +1,21 @@ +#define a_barrier a_barrier +static inline void a_barrier() +{ + __asm__ __volatile__ ("fence rw,rw" : : : "memory"); +} + +#define a_cas a_cas +static inline int a_cas(volatile int *p, int t, int s) +{ + int old, tmp; + __asm__ __volatile__ ( + "\n1: lr.w.aqrl %0, (%2)\n" + " bne %0, %3, 1f\n" + " sc.w.aqrl %1, %4, (%2)\n" + " bnez %1, 1b\n" + "1:" + : "=&r"(old), "=&r"(tmp) + : "r"(p), "r"((long)t), "r"((long)s) + : "memory"); + return old; +} diff --git a/arch/riscv32/bits/alltypes.h.in b/arch/riscv32/bits/alltypes.h.in new file mode 100644 index 00000000..e2b6129e --- /dev/null +++ b/arch/riscv32/bits/alltypes.h.in @@ -0,0 +1,18 @@ +#define _Addr int +#define _Int64 long long +#define _Reg int + +#define __BYTE_ORDER 1234 +#define __LONG_MAX 0x7fffffffL + +#ifndef __cplusplus +TYPEDEF int wchar_t; +#endif + +TYPEDEF int blksize_t; +TYPEDEF unsigned int nlink_t; + +TYPEDEF float float_t; +TYPEDEF double double_t; + +TYPEDEF struct { long long __ll; long double __ld; } max_align_t; diff --git a/arch/riscv32/bits/fenv.h b/arch/riscv32/bits/fenv.h new file mode 100644 index 00000000..806ec40f --- /dev/null +++ b/arch/riscv32/bits/fenv.h @@ -0,0 +1,17 @@ +#define FE_INVALID 16 +#define FE_DIVBYZERO 8 +#define FE_OVERFLOW 4 +#define FE_UNDERFLOW 2 +#define FE_INEXACT 1 + +#define FE_ALL_EXCEPT 31 + +#define FE_TONEAREST 0 +#define FE_DOWNWARD 2 +#define FE_UPWARD 3 +#define FE_TOWARDZERO 1 + +typedef unsigned int fexcept_t; +typedef unsigned int fenv_t; + +#define FE_DFL_ENV ((const fenv_t *) -1) diff --git a/arch/riscv32/bits/float.h b/arch/riscv32/bits/float.h new file mode 100644 index 00000000..719c7908 --- /dev/null +++ b/arch/riscv32/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/riscv32/bits/posix.h b/arch/riscv32/bits/posix.h new file mode 100644 index 00000000..8897d37d --- /dev/null +++ b/arch/riscv32/bits/posix.h @@ -0,0 +1,2 @@ +#define _POSIX_V6_ILP32_OFFBIG 1 +#define _POSIX_V7_ILP32_OFFBIG 1 diff --git a/arch/riscv32/bits/reg.h b/arch/riscv32/bits/reg.h new file mode 100644 index 00000000..0192a293 --- /dev/null +++ b/arch/riscv32/bits/reg.h @@ -0,0 +1,2 @@ +#undef __WORDSIZE +#define __WORDSIZE 32 diff --git a/arch/riscv32/bits/setjmp.h b/arch/riscv32/bits/setjmp.h new file mode 100644 index 00000000..51e96276 --- /dev/null +++ b/arch/riscv32/bits/setjmp.h @@ -0,0 +1 @@ +typedef unsigned long long __jmp_buf[19]; diff --git a/arch/riscv32/bits/signal.h b/arch/riscv32/bits/signal.h new file mode 100644 index 00000000..287367db --- /dev/null +++ b/arch/riscv32/bits/signal.h @@ -0,0 +1,118 @@ +#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 2048 +# define SIGSTKSZ 8192 +#endif + +typedef unsigned long __riscv_mc_gp_state[32]; + +struct __riscv_mc_f_ext_state { + unsigned int __f[32]; + unsigned int __fcsr; +}; + +struct __riscv_mc_d_ext_state { + unsigned long long __f[32]; + unsigned int __fcsr; +}; + +struct __riscv_mc_q_ext_state { + unsigned long long __f[64] __attribute__((aligned(16))); + unsigned int __fcsr; + unsigned int __reserved[3]; +}; + +union __riscv_mc_fp_state { + struct __riscv_mc_f_ext_state __f; + struct __riscv_mc_d_ext_state __d; + struct __riscv_mc_q_ext_state __q; +}; + +typedef struct mcontext_t { + __riscv_mc_gp_state __gregs; + union __riscv_mc_fp_state __fpregs; +} mcontext_t; + +#if defined(_GNU_SOURCE) +#define REG_PC 0 +#define REG_RA 1 +#define REG_SP 2 +#define REG_TP 4 +#define REG_S0 8 +#define REG_A0 10 +#endif + +#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) +typedef unsigned long greg_t; +typedef unsigned long gregset_t[32]; +typedef union __riscv_mc_fp_state fpregset_t; +struct sigcontext { + gregset_t gregs; + fpregset_t fpregs; +}; +#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; + 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 0x04000000 + +#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/riscv32/bits/stat.h b/arch/riscv32/bits/stat.h new file mode 100644 index 00000000..f6d9e864 --- /dev/null +++ b/arch/riscv32/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 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/riscv32/bits/stdint.h b/arch/riscv32/bits/stdint.h new file mode 100644 index 00000000..d1b27121 --- /dev/null +++ b/arch/riscv32/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 INT32_MIN +#define INTPTR_MAX INT32_MAX +#define UINTPTR_MAX UINT32_MAX +#define PTRDIFF_MIN INT32_MIN +#define PTRDIFF_MAX INT32_MAX +#define SIZE_MAX UINT32_MAX diff --git a/arch/riscv32/bits/syscall.h.in b/arch/riscv32/bits/syscall.h.in new file mode 100644 index 00000000..852d2aaa --- /dev/null +++ b/arch/riscv32/bits/syscall.h.in @@ -0,0 +1,286 @@ +#define __NR_io_setup 0 +#define __NR_io_destroy 1 +#define __NR_io_submit 2 +#define __NR_io_cancel 3 +#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 __NR_fcntl64 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 __NR_statfs64 43 +#define __NR_fstatfs64 44 +#define __NR_truncate64 45 +#define __NR_ftruncate64 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 __NR__llseek 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 __NR_sendfile64 71 +#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_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_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_getoverrun 109 +#define __NR_timer_delete 111 +#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_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_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_getrusage 165 +#define __NR_umask 166 +#define __NR_prctl 167 +#define __NR_getcpu 168 +#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_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_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 __NR_mmap2 222 +#define __NR_fadvise64_64 223 +#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_arch_specific_syscall 244 +#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_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_rseq 293 +#define __NR_kexec_file_load 294 +#define __NR_clock_gettime64 403 +#define __NR_clock_settime64 404 +#define __NR_clock_adjtime64 405 +#define __NR_clock_getres_time64 406 +#define __NR_clock_nanosleep_time64 407 +#define __NR_timer_gettime64 408 +#define __NR_timer_settime64 409 +#define __NR_timerfd_gettime64 410 +#define __NR_timerfd_settime64 411 +#define __NR_utimensat_time64 412 +#define __NR_pselect6_time64 413 +#define __NR_ppoll_time64 414 +#define __NR_io_pgetevents_time64 416 +#define __NR_recvmmsg_time64 417 +#define __NR_mq_timedsend_time64 418 +#define __NR_mq_timedreceive_time64 419 +#define __NR_semtimedop_time64 420 +#define __NR_rt_sigtimedwait_time64 421 +#define __NR_futex_time64 422 +#define __NR_sched_rr_get_interval_time64 423 +#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_futex __NR_futex_time64 + +#define __NR_sysriscv __NR_arch_specific_syscall +#define __NR_riscv_flush_icache (__NR_sysriscv + 15) diff --git a/arch/riscv32/bits/user.h b/arch/riscv32/bits/user.h new file mode 100644 index 00000000..0d37de0b --- /dev/null +++ b/arch/riscv32/bits/user.h @@ -0,0 +1,6 @@ +#include + +#define ELF_NGREG 32 +#define ELF_NFPREG 33 +typedef unsigned long elf_greg_t, elf_gregset_t[ELF_NGREG]; +typedef union __riscv_mc_fp_state elf_fpregset_t; diff --git a/arch/riscv32/crt_arch.h b/arch/riscv32/crt_arch.h new file mode 100644 index 00000000..6b93fcfd --- /dev/null +++ b/arch/riscv32/crt_arch.h @@ -0,0 +1,19 @@ +__asm__( +".section .sdata,\"aw\"\n" +".text\n" +".global " START "\n" +".type " START ",%function\n" +START ":\n" +".weak __global_pointer$\n" +".hidden __global_pointer$\n" +".option push\n" +".option norelax\n\t" +"lla gp, __global_pointer$\n" +".option pop\n\t" +"mv a0, sp\n" +".weak _DYNAMIC\n" +".hidden _DYNAMIC\n\t" +"lla a1, _DYNAMIC\n\t" +"andi sp, sp, -16\n\t" +"tail " START "_c" +); diff --git a/arch/riscv32/kstat.h b/arch/riscv32/kstat.h new file mode 100644 index 00000000..e69de29b diff --git a/arch/riscv32/pthread_arch.h b/arch/riscv32/pthread_arch.h new file mode 100644 index 00000000..a20d7fba --- /dev/null +++ b/arch/riscv32/pthread_arch.h @@ -0,0 +1,13 @@ +static inline uintptr_t __get_tp() +{ + uintptr_t tp; + __asm__ __volatile__("mv %0, tp" : "=r"(tp)); + return tp; +} + +#define TLS_ABOVE_TP +#define GAP_ABOVE_TP 0 + +#define DTP_OFFSET 0x800 + +#define MC_PC __gregs[0] diff --git a/arch/riscv32/reloc.h b/arch/riscv32/reloc.h new file mode 100644 index 00000000..59d15f17 --- /dev/null +++ b/arch/riscv32/reloc.h @@ -0,0 +1,22 @@ +#if defined __riscv_float_abi_soft +#define RISCV_FP_SUFFIX "-sf" +#elif defined __riscv_float_abi_single +#define RISCV_FP_SUFFIX "-sp" +#elif defined __riscv_float_abi_double +#define RISCV_FP_SUFFIX "" +#endif + +#define LDSO_ARCH "riscv32" RISCV_FP_SUFFIX + +#define TPOFF_K 0 + +#define REL_SYMBOLIC R_RISCV_32 +#define REL_PLT R_RISCV_JUMP_SLOT +#define REL_RELATIVE R_RISCV_RELATIVE +#define REL_COPY R_RISCV_COPY +#define REL_DTPMOD R_RISCV_TLS_DTPMOD32 +#define REL_DTPOFF R_RISCV_TLS_DTPREL32 +#define REL_TPOFF R_RISCV_TLS_TPREL32 + +#define CRTJMP(pc,sp) __asm__ __volatile__( \ + "mv sp, %1 ; jr %0" : : "r"(pc), "r"(sp) : "memory" ) diff --git a/arch/riscv32/syscall_arch.h b/arch/riscv32/syscall_arch.h new file mode 100644 index 00000000..c507f15f --- /dev/null +++ b/arch/riscv32/syscall_arch.h @@ -0,0 +1,80 @@ +#define __SYSCALL_LL_E(x) \ +((union { long long ll; long l[2]; }){ .ll = x }).l[0], \ +((union { long long ll; long l[2]; }){ .ll = x }).l[1] +#define __SYSCALL_LL_O(x) __SYSCALL_LL_E((x)) + +#define __asm_syscall(...) \ + __asm__ __volatile__ ("ecall\n\t" \ + : "=r"(a0) : __VA_ARGS__ : "memory"); \ + return a0; \ + +static inline long __syscall0(long n) +{ + register long a7 __asm__("a7") = n; + register long a0 __asm__("a0"); + __asm_syscall("r"(a7)) +} + +static inline long __syscall1(long n, long a) +{ + register long a7 __asm__("a7") = n; + register long a0 __asm__("a0") = a; + __asm_syscall("r"(a7), "0"(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_syscall("r"(a7), "0"(a0), "r"(a1)) +} + +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_syscall("r"(a7), "0"(a0), "r"(a1), "r"(a2)) +} + +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_syscall("r"(a7), "0"(a0), "r"(a1), "r"(a2), "r"(a3)) +} + +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_syscall("r"(a7), "0"(a0), "r"(a1), "r"(a2), "r"(a3), "r"(a4)) +} + +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_syscall("r"(a7), "0"(a0), "r"(a1), "r"(a2), "r"(a3), "r"(a4), "r"(a5)) +} + +#define VDSO_USEFUL +/* We don't have a clock_gettime function. +#define VDSO_CGT_SYM "__vdso_clock_gettime" +#define VDSO_CGT_VER "LINUX_2.6" */ + +#define IPC_64 0 -- cgit v1.2.1