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Fri, 15 Nov 2024 14:26:10 -0800 (PST) Received: from timur-HP-ProBook-440-14-inch-G9-Notebook-PC.corp.yadro.com ([93.175.13.202]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-53da65014d7sm715677e87.108.2024.11.15.14.26.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Nov 2024 14:26:10 -0800 (PST) From: Timur To: gdb-patches@sourceware.org Cc: Timur Subject: [PATCH] gdb/riscv: Add record support for rv64gc instructions Date: Sat, 16 Nov 2024 01:26:06 +0300 Message-Id: <20241115222606.27376-1-timurgol007@gmail.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gdb-patches-bounces~public-inbox=simark.ca@sourceware.org Timur Golubovich timurgol007@gmail.com --- gdb/configure.tgt | 4 +- gdb/riscv-canonicalize-syscall.c | 555 ++++++++++++++ gdb/riscv-linux-tdep.c | 261 +++++++ gdb/riscv-linux-tdep.h | 29 + gdb/riscv-tdep.c | 703 +++++++++++++++++- gdb/riscv-tdep.h | 15 + .../riscv-canonicalize-syscall-gen.py | 126 ++++ gdb/testsuite/lib/gdb.exp | 3 +- 8 files changed, 1688 insertions(+), 8 deletions(-) create mode 100644 gdb/riscv-canonicalize-syscall.c create mode 100644 gdb/riscv-linux-tdep.h create mode 100644 gdb/syscalls/riscv-canonicalize-syscall-gen.py diff --git a/gdb/configure.tgt b/gdb/configure.tgt index 62df71b13fa..f965e03e84d 100644 --- a/gdb/configure.tgt +++ b/gdb/configure.tgt @@ -545,8 +545,8 @@ riscv*-*-freebsd*) riscv*-*-linux*) # Target: Linux/RISC-V - gdb_target_obs="riscv-linux-tdep.o glibc-tdep.o \ - linux-tdep.o solib-svr4.o symfile-mem.o linux-record.o" + gdb_target_obs="riscv-linux-tdep.o riscv-canonicalize-syscall.o \ + glibc-tdep.o linux-tdep.o solib-svr4.o symfile-mem.o linux-record.o" ;; riscv*-*-*) diff --git a/gdb/riscv-canonicalize-syscall.c b/gdb/riscv-canonicalize-syscall.c new file mode 100644 index 00000000000..779bbd9335c --- /dev/null +++ b/gdb/riscv-canonicalize-syscall.c @@ -0,0 +1,555 @@ +/* DO NOT EDIT: Autogenerated by riscv-canonicalize-syscall-gen.py */ + +#include "defs.h" +#include "riscv-linux-tdep.h" + +enum gdb_syscall +riscv64_canonicalize_syscall (int syscall) +{ + switch (syscall) + { + case 0: // #define __NR_io_setup 0 + return gdb_sys_io_setup; + case 1: // #define __NR_io_destroy 1 + return gdb_sys_io_destroy; + case 2: // #define __NR_io_submit 2 + return gdb_sys_io_submit; + case 3: // #define __NR_io_cancel 3 + return gdb_sys_io_cancel; + case 4: // #define __NR_io_getevents 4 + return gdb_sys_io_getevents; + case 5: // #define __NR_setxattr 5 + return gdb_sys_setxattr; + case 6: // #define __NR_lsetxattr 6 + return gdb_sys_lsetxattr; + case 7: // #define __NR_fsetxattr 7 + return gdb_sys_fsetxattr; + case 8: // #define __NR_getxattr 8 + return gdb_sys_getxattr; + case 9: // #define __NR_lgetxattr 9 + return gdb_sys_lgetxattr; + case 10: // #define __NR_fgetxattr 10 + return gdb_sys_fgetxattr; + case 11: // #define __NR_listxattr 11 + return gdb_sys_listxattr; + case 12: // #define __NR_llistxattr 12 + return gdb_sys_llistxattr; + case 13: // #define __NR_flistxattr 13 + return gdb_sys_flistxattr; + case 14: // #define __NR_removexattr 14 + return gdb_sys_removexattr; + case 15: // #define __NR_lremovexattr 15 + return gdb_sys_lremovexattr; + case 16: // #define __NR_fremovexattr 16 + return gdb_sys_fremovexattr; + case 17: // #define __NR_getcwd 17 + return gdb_sys_getcwd; + case 18: // #define __NR_lookup_dcookie 18 + return gdb_sys_lookup_dcookie; + case 19: // #define __NR_eventfd2 19 + return gdb_sys_eventfd2; + case 20: // #define __NR_epoll_create1 20 + return gdb_sys_epoll_create1; + case 21: // #define __NR_epoll_ctl 21 + return gdb_sys_epoll_ctl; + case 22: // #define __NR_epoll_pwait 22 + return gdb_sys_epoll_pwait; + case 23: // #define __NR_dup 23 + return gdb_sys_dup; + case 24: // #define __NR_dup3 24 + return gdb_sys_dup3; + case 25: // #define __NR_fcntl 25 + return gdb_sys_fcntl; + case 26: // #define __NR_inotify_init1 26 + return gdb_sys_inotify_init1; + case 27: // #define __NR_inotify_add_watch 27 + return gdb_sys_inotify_add_watch; + case 28: // #define __NR_inotify_rm_watch 28 + return gdb_sys_inotify_rm_watch; + case 29: // #define __NR_ioctl 29 + return gdb_sys_ioctl; + case 30: // #define __NR_ioprio_set 30 + return gdb_sys_ioprio_set; + case 31: // #define __NR_ioprio_get 31 + return gdb_sys_ioprio_get; + case 32: // #define __NR_flock 32 + return gdb_sys_flock; + case 33: // #define __NR_mknodat 33 + return gdb_sys_mknodat; + case 34: // #define __NR_mkdirat 34 + return gdb_sys_mkdirat; + case 35: // #define __NR_unlinkat 35 + return gdb_sys_unlinkat; + case 36: // #define __NR_symlinkat 36 + return gdb_sys_symlinkat; + case 37: // #define __NR_linkat 37 + return gdb_sys_linkat; + // case 39: return gdb_sys_umount2; + case 40: // #define __NR_mount 40 + return gdb_sys_mount; + case 41: // #define __NR_pivot_root 41 + return gdb_sys_pivot_root; + case 42: // #define __NR_nfsservctl 42 + return gdb_sys_nfsservctl; + case 43: // #define __NR_statfs 43 + return gdb_sys_statfs; + case 44: // #define __NR_fstatfs 44 + return gdb_sys_fstatfs; + case 45: // #define __NR_truncate 45 + return gdb_sys_truncate; + case 46: // #define __NR_ftruncate 46 + return gdb_sys_ftruncate; + case 47: // #define __NR_fallocate 47 + return gdb_sys_fallocate; + case 48: // #define __NR_faccessat 48 + return gdb_sys_faccessat; + case 49: // #define __NR_chdir 49 + return gdb_sys_chdir; + case 50: // #define __NR_fchdir 50 + return gdb_sys_fchdir; + case 51: // #define __NR_chroot 51 + return gdb_sys_chroot; + case 52: // #define __NR_fchmod 52 + return gdb_sys_fchmod; + case 53: // #define __NR_fchmodat 53 + return gdb_sys_fchmodat; + case 54: // #define __NR_fchownat 54 + return gdb_sys_fchownat; + case 55: // #define __NR_fchown 55 + return gdb_sys_fchown; + case 56: // #define __NR_openat 56 + return gdb_sys_openat; + case 57: // #define __NR_close 57 + return gdb_sys_close; + case 58: // #define __NR_vhangup 58 + return gdb_sys_vhangup; + case 59: // #define __NR_pipe2 59 + return gdb_sys_pipe2; + case 60: // #define __NR_quotactl 60 + return gdb_sys_quotactl; + case 61: // #define __NR_getdents64 61 + return gdb_sys_getdents64; + case 62: // #define __NR_lseek 62 + return gdb_sys_lseek; + case 63: // #define __NR_read 63 + return gdb_sys_read; + case 64: // #define __NR_write 64 + return gdb_sys_write; + case 65: // #define __NR_readv 65 + return gdb_sys_readv; + case 66: // #define __NR_writev 66 + return gdb_sys_writev; + case 67: // #define __NR_pread64 67 + return gdb_sys_pread64; + case 68: // #define __NR_pwrite64 68 + return gdb_sys_pwrite64; + // case 69: return gdb_sys_preadv; + // case 70: return gdb_sys_pwritev; + case 71: // #define __NR_sendfile 71 + return gdb_sys_sendfile; + case 72: // #define __NR_pselect6 72 + return gdb_sys_pselect6; + case 73: // #define __NR_ppoll 73 + return gdb_sys_ppoll; + // case 74: return gdb_sys_signalfd4; + case 75: // #define __NR_vmsplice 75 + return gdb_sys_vmsplice; + case 76: // #define __NR_splice 76 + return gdb_sys_splice; + case 77: // #define __NR_tee 77 + return gdb_sys_tee; + case 78: // #define __NR_readlinkat 78 + return gdb_sys_readlinkat; + case 79: // #define __NR_newfstatat 79 + return gdb_sys_newfstatat; + case 80: // #define __NR_fstat 80 + return gdb_sys_fstat; + case 81: // #define __NR_sync 81 + return gdb_sys_sync; + case 82: // #define __NR_fsync 82 + return gdb_sys_fsync; + case 83: // #define __NR_fdatasync 83 + return gdb_sys_fdatasync; + case 84: // #define __NR_sync_file_range 84 + return gdb_sys_sync_file_range; + // case 85: return gdb_sys_timerfd_create; + // case 86: return gdb_sys_timerfd_settime; + // case 87: return gdb_sys_timerfd_gettime; + // case 88: return gdb_sys_utimensat; + case 89: // #define __NR_acct 89 + return gdb_sys_acct; + case 90: // #define __NR_capget 90 + return gdb_sys_capget; + case 91: // #define __NR_capset 91 + return gdb_sys_capset; + case 92: // #define __NR_personality 92 + return gdb_sys_personality; + case 93: // #define __NR_exit 93 + return gdb_sys_exit; + case 94: // #define __NR_exit_group 94 + return gdb_sys_exit_group; + case 95: // #define __NR_waitid 95 + return gdb_sys_waitid; + case 96: // #define __NR_set_tid_address 96 + return gdb_sys_set_tid_address; + case 97: // #define __NR_unshare 97 + return gdb_sys_unshare; + case 98: // #define __NR_futex 98 + return gdb_sys_futex; + case 99: // #define __NR_set_robust_list 99 + return gdb_sys_set_robust_list; + case 100: // #define __NR_get_robust_list 100 + return gdb_sys_get_robust_list; + case 101: // #define __NR_nanosleep 101 + return gdb_sys_nanosleep; + case 102: // #define __NR_getitimer 102 + return gdb_sys_getitimer; + case 103: // #define __NR_setitimer 103 + return gdb_sys_setitimer; + case 104: // #define __NR_kexec_load 104 + return gdb_sys_kexec_load; + case 105: // #define __NR_init_module 105 + return gdb_sys_init_module; + case 106: // #define __NR_delete_module 106 + return gdb_sys_delete_module; + case 107: // #define __NR_timer_create 107 + return gdb_sys_timer_create; + case 108: // #define __NR_timer_gettime 108 + return gdb_sys_timer_gettime; + case 109: // #define __NR_timer_getoverrun 109 + return gdb_sys_timer_getoverrun; + case 110: // #define __NR_timer_settime 110 + return gdb_sys_timer_settime; + case 111: // #define __NR_timer_delete 111 + return gdb_sys_timer_delete; + case 112: // #define __NR_clock_settime 112 + return gdb_sys_clock_settime; + case 113: // #define __NR_clock_gettime 113 + return gdb_sys_clock_gettime; + case 114: // #define __NR_clock_getres 114 + return gdb_sys_clock_getres; + case 115: // #define __NR_clock_nanosleep 115 + return gdb_sys_clock_nanosleep; + case 116: // #define __NR_syslog 116 + return gdb_sys_syslog; + case 117: // #define __NR_ptrace 117 + return gdb_sys_ptrace; + case 118: // #define __NR_sched_setparam 118 + return gdb_sys_sched_setparam; + case 119: // #define __NR_sched_setscheduler 119 + return gdb_sys_sched_setscheduler; + case 120: // #define __NR_sched_getscheduler 120 + return gdb_sys_sched_getscheduler; + case 121: // #define __NR_sched_getparam 121 + return gdb_sys_sched_getparam; + case 122: // #define __NR_sched_setaffinity 122 + return gdb_sys_sched_setaffinity; + case 123: // #define __NR_sched_getaffinity 123 + return gdb_sys_sched_getaffinity; + case 124: // #define __NR_sched_yield 124 + return gdb_sys_sched_yield; + case 125: // #define __NR_sched_get_priority_max 125 + return gdb_sys_sched_get_priority_max; + case 126: // #define __NR_sched_get_priority_min 126 + return gdb_sys_sched_get_priority_min; + case 127: // #define __NR_sched_rr_get_interval 127 + return gdb_sys_sched_rr_get_interval; + case 128: // #define __NR_restart_syscall 128 + return gdb_sys_restart_syscall; + case 129: // #define __NR_kill 129 + return gdb_sys_kill; + case 130: // #define __NR_tkill 130 + return gdb_sys_tkill; + case 131: // #define __NR_tgkill 131 + return gdb_sys_tgkill; + case 132: // #define __NR_sigaltstack 132 + return gdb_sys_sigaltstack; + case 133: // #define __NR_rt_sigsuspend 133 + return gdb_sys_rt_sigsuspend; + case 134: // #define __NR_rt_sigaction 134 + return gdb_sys_rt_sigaction; + case 135: // #define __NR_rt_sigprocmask 135 + return gdb_sys_rt_sigprocmask; + case 136: // #define __NR_rt_sigpending 136 + return gdb_sys_rt_sigpending; + case 137: // #define __NR_rt_sigtimedwait 137 + return gdb_sys_rt_sigtimedwait; + case 138: // #define __NR_rt_sigqueueinfo 138 + return gdb_sys_rt_sigqueueinfo; + case 139: // #define __NR_rt_sigreturn 139 + return gdb_sys_rt_sigreturn; + case 140: // #define __NR_setpriority 140 + return gdb_sys_setpriority; + case 141: // #define __NR_getpriority 141 + return gdb_sys_getpriority; + case 142: // #define __NR_reboot 142 + return gdb_sys_reboot; + case 143: // #define __NR_setregid 143 + return gdb_sys_setregid; + case 144: // #define __NR_setgid 144 + return gdb_sys_setgid; + case 145: // #define __NR_setreuid 145 + return gdb_sys_setreuid; + case 146: // #define __NR_setuid 146 + return gdb_sys_setuid; + case 147: // #define __NR_setresuid 147 + return gdb_sys_setresuid; + case 148: // #define __NR_getresuid 148 + return gdb_sys_getresuid; + case 149: // #define __NR_setresgid 149 + return gdb_sys_setresgid; + case 150: // #define __NR_getresgid 150 + return gdb_sys_getresgid; + case 151: // #define __NR_setfsuid 151 + return gdb_sys_setfsuid; + case 152: // #define __NR_setfsgid 152 + return gdb_sys_setfsgid; + case 153: // #define __NR_times 153 + return gdb_sys_times; + case 154: // #define __NR_setpgid 154 + return gdb_sys_setpgid; + case 155: // #define __NR_getpgid 155 + return gdb_sys_getpgid; + case 156: // #define __NR_getsid 156 + return gdb_sys_getsid; + case 157: // #define __NR_setsid 157 + return gdb_sys_setsid; + case 158: // #define __NR_getgroups 158 + return gdb_sys_getgroups; + case 159: // #define __NR_setgroups 159 + return gdb_sys_setgroups; + case 160: // #define __NR_uname 160 + return gdb_sys_uname; + case 161: // #define __NR_sethostname 161 + return gdb_sys_sethostname; + case 162: // #define __NR_setdomainname 162 + return gdb_sys_setdomainname; + case 163: // #define __NR_getrlimit 163 + return gdb_sys_getrlimit; + case 164: // #define __NR_setrlimit 164 + return gdb_sys_setrlimit; + case 165: // #define __NR_getrusage 165 + return gdb_sys_getrusage; + case 166: // #define __NR_umask 166 + return gdb_sys_umask; + case 167: // #define __NR_prctl 167 + return gdb_sys_prctl; + case 168: // #define __NR_getcpu 168 + return gdb_sys_getcpu; + case 169: // #define __NR_gettimeofday 169 + return gdb_sys_gettimeofday; + case 170: // #define __NR_settimeofday 170 + return gdb_sys_settimeofday; + case 171: // #define __NR_adjtimex 171 + return gdb_sys_adjtimex; + case 172: // #define __NR_getpid 172 + return gdb_sys_getpid; + case 173: // #define __NR_getppid 173 + return gdb_sys_getppid; + case 174: // #define __NR_getuid 174 + return gdb_sys_getuid; + case 175: // #define __NR_geteuid 175 + return gdb_sys_geteuid; + case 176: // #define __NR_getgid 176 + return gdb_sys_getgid; + case 177: // #define __NR_getegid 177 + return gdb_sys_getegid; + case 178: // #define __NR_gettid 178 + return gdb_sys_gettid; + case 179: // #define __NR_sysinfo 179 + return gdb_sys_sysinfo; + case 180: // #define __NR_mq_open 180 + return gdb_sys_mq_open; + case 181: // #define __NR_mq_unlink 181 + return gdb_sys_mq_unlink; + case 182: // #define __NR_mq_timedsend 182 + return gdb_sys_mq_timedsend; + case 183: // #define __NR_mq_timedreceive 183 + return gdb_sys_mq_timedreceive; + case 184: // #define __NR_mq_notify 184 + return gdb_sys_mq_notify; + case 185: // #define __NR_mq_getsetattr 185 + return gdb_sys_mq_getsetattr; + case 186: // #define __NR_msgget 186 + return gdb_sys_msgget; + case 187: // #define __NR_msgctl 187 + return gdb_sys_msgctl; + case 188: // #define __NR_msgrcv 188 + return gdb_sys_msgrcv; + case 189: // #define __NR_msgsnd 189 + return gdb_sys_msgsnd; + case 190: // #define __NR_semget 190 + return gdb_sys_semget; + case 191: // #define __NR_semctl 191 + return gdb_sys_semctl; + case 192: // #define __NR_semtimedop 192 + return gdb_sys_semtimedop; + case 193: // #define __NR_semop 193 + return gdb_sys_semop; + case 194: // #define __NR_shmget 194 + return gdb_sys_shmget; + case 195: // #define __NR_shmctl 195 + return gdb_sys_shmctl; + case 196: // #define __NR_shmat 196 + return gdb_sys_shmat; + case 197: // #define __NR_shmdt 197 + return gdb_sys_shmdt; + case 198: // #define __NR_socket 198 + return gdb_sys_socket; + case 199: // #define __NR_socketpair 199 + return gdb_sys_socketpair; + case 200: // #define __NR_bind 200 + return gdb_sys_bind; + case 201: // #define __NR_listen 201 + return gdb_sys_listen; + case 202: // #define __NR_accept 202 + return gdb_sys_accept; + case 203: // #define __NR_connect 203 + return gdb_sys_connect; + case 204: // #define __NR_getsockname 204 + return gdb_sys_getsockname; + case 205: // #define __NR_getpeername 205 + return gdb_sys_getpeername; + case 206: // #define __NR_sendto 206 + return gdb_sys_sendto; + case 207: // #define __NR_recvfrom 207 + return gdb_sys_recvfrom; + case 208: // #define __NR_setsockopt 208 + return gdb_sys_setsockopt; + case 209: // #define __NR_getsockopt 209 + return gdb_sys_getsockopt; + case 210: // #define __NR_shutdown 210 + return gdb_sys_shutdown; + case 211: // #define __NR_sendmsg 211 + return gdb_sys_sendmsg; + case 212: // #define __NR_recvmsg 212 + return gdb_sys_recvmsg; + case 213: // #define __NR_readahead 213 + return gdb_sys_readahead; + case 214: // #define __NR_brk 214 + return gdb_sys_brk; + case 215: // #define __NR_munmap 215 + return gdb_sys_munmap; + case 216: // #define __NR_mremap 216 + return gdb_sys_mremap; + case 217: // #define __NR_add_key 217 + return gdb_sys_add_key; + case 218: // #define __NR_request_key 218 + return gdb_sys_request_key; + case 219: // #define __NR_keyctl 219 + return gdb_sys_keyctl; + case 220: // #define __NR_clone 220 + return gdb_sys_clone; + case 221: // #define __NR_execve 221 + return gdb_sys_execve; + case 222: + return gdb_old_mmap; + case 223: // #define __NR_fadvise64 223 + return gdb_sys_fadvise64; + case 224: // #define __NR_swapon 224 + return gdb_sys_swapon; + case 225: // #define __NR_swapoff 225 + return gdb_sys_swapoff; + case 226: // #define __NR_mprotect 226 + return gdb_sys_mprotect; + case 227: // #define __NR_msync 227 + return gdb_sys_msync; + case 228: // #define __NR_mlock 228 + return gdb_sys_mlock; + case 229: // #define __NR_munlock 229 + return gdb_sys_munlock; + case 230: // #define __NR_mlockall 230 + return gdb_sys_mlockall; + case 231: // #define __NR_munlockall 231 + return gdb_sys_munlockall; + case 232: // #define __NR_mincore 232 + return gdb_sys_mincore; + case 233: // #define __NR_madvise 233 + return gdb_sys_madvise; + case 234: // #define __NR_remap_file_pages 234 + return gdb_sys_remap_file_pages; + case 235: // #define __NR_mbind 235 + return gdb_sys_mbind; + case 236: // #define __NR_get_mempolicy 236 + return gdb_sys_get_mempolicy; + case 237: // #define __NR_set_mempolicy 237 + return gdb_sys_set_mempolicy; + case 238: // #define __NR_migrate_pages 238 + return gdb_sys_migrate_pages; + case 239: // #define __NR_move_pages 239 + return gdb_sys_move_pages; + // case 240: return gdb_sys_rt_tgsigqueueinfo; + // case 241: return gdb_sys_perf_event_open; + // case 242: return gdb_sys_accept4; + // case 243: return gdb_sys_recvmmsg; + // case 258: return gdb_sys_riscv_hwprobe; + // case 259: return gdb_sys_riscv_flush_icache; + case 260: // #define __NR_wait4 260 + return gdb_sys_wait4; + // case 261: return gdb_sys_prlimit64; + // case 262: return gdb_sys_fanotify_init; + // case 263: return gdb_sys_fanotify_mark; + // case 264: return gdb_sys_name_to_handle_at; + // case 265: return gdb_sys_open_by_handle_at; + // case 266: return gdb_sys_clock_adjtime; + // case 267: return gdb_sys_syncfs; + // case 268: return gdb_sys_setns; + // case 269: return gdb_sys_sendmmsg; + // case 270: return gdb_sys_process_vm_readv; + // case 271: return gdb_sys_process_vm_writev; + // case 272: return gdb_sys_kcmp; + // case 273: return gdb_sys_finit_module; + // case 274: return gdb_sys_sched_setattr; + // case 275: return gdb_sys_sched_getattr; + // case 276: return gdb_sys_renameat2; + // case 277: return gdb_sys_seccomp; + case 278: // #define __NR_getrandom 278 + return gdb_sys_getrandom; + // case 279: return gdb_sys_memfd_create; + // case 280: return gdb_sys_bpf; + // case 281: return gdb_sys_execveat; + // case 282: return gdb_sys_userfaultfd; + // case 283: return gdb_sys_membarrier; + // case 284: return gdb_sys_mlock2; + // case 285: return gdb_sys_copy_file_range; + // case 286: return gdb_sys_preadv2; + // case 287: return gdb_sys_pwritev2; + // case 288: return gdb_sys_pkey_mprotect; + // case 289: return gdb_sys_pkey_alloc; + // case 290: return gdb_sys_pkey_free; + case 291: // #define __NR_statx 291 + return gdb_sys_statx; + // case 292: return gdb_sys_io_pgetevents; + // case 293: return gdb_sys_rseq; + // case 294: return gdb_sys_kexec_file_load; + // case 424: return gdb_sys_pidfd_send_signal; + // case 425: return gdb_sys_io_uring_setup; + // case 426: return gdb_sys_io_uring_enter; + // case 427: return gdb_sys_io_uring_register; + // case 428: return gdb_sys_open_tree; + // case 429: return gdb_sys_move_mount; + // case 430: return gdb_sys_fsopen; + // case 431: return gdb_sys_fsconfig; + // case 432: return gdb_sys_fsmount; + // case 433: return gdb_sys_fspick; + // case 434: return gdb_sys_pidfd_open; + // case 435: return gdb_sys_clone3; + // case 436: return gdb_sys_close_range; + // case 437: return gdb_sys_openat2; + // case 438: return gdb_sys_pidfd_getfd; + // case 439: return gdb_sys_faccessat2; + // case 440: return gdb_sys_process_madvise; + // case 441: return gdb_sys_epoll_pwait2; + // case 442: return gdb_sys_mount_setattr; + // case 443: return gdb_sys_quotactl_fd; + // case 444: return gdb_sys_landlock_create_ruleset; + // case 445: return gdb_sys_landlock_add_rule; + // case 446: return gdb_sys_landlock_restrict_self; + // case 447: return gdb_sys_memfd_secret; + // case 448: return gdb_sys_process_mrelease; + // case 449: return gdb_sys_futex_waitv; + // case 450: return gdb_sys_set_mempolicy_home_node; + default: + return gdb_sys_no_syscall; + } +} diff --git a/gdb/riscv-linux-tdep.c b/gdb/riscv-linux-tdep.c index ff478cf4c28..5a56e9911f8 100644 --- a/gdb/riscv-linux-tdep.c +++ b/gdb/riscv-linux-tdep.c @@ -25,6 +25,11 @@ #include "tramp-frame.h" #include "trad-frame.h" #include "gdbarch.h" +#include "record-full.h" +#include "linux-record.h" +#include "riscv-linux-tdep.h" + +extern unsigned int record_debug; /* The following value is derived from __NR_rt_sigreturn in from the Linux source tree. */ @@ -173,6 +178,259 @@ riscv_linux_syscall_next_pc (const frame_info_ptr &frame) return pc + 4 /* Length of the ECALL insn. */; } +/* RISC-V process record-replay constructs: syscall, signal etc. */ + +static linux_record_tdep riscv_linux_record_tdep; + +/* Record all registers but PC register for process-record. */ + +using regnum_type = int; + +static bool +save_registers (struct regcache *regcache, regnum_type fir, regnum_type last) +{ + for (regnum_type i = fir; i != last; ++i) + if (record_full_arch_list_add_reg (regcache, i)) + return false; + return true; +}; + +static bool +riscv_all_but_pc_registers_record (struct regcache *regcache) +{ + auto &&gdbarch = regcache->arch (); + auto &&tdep = gdbarch_tdep (gdbarch); + auto &&features = tdep->isa_features; + + if (!save_registers (regcache, RISCV_ZERO_REGNUM + 1, RISCV_PC_REGNUM)) + return false; + + if (features.flen + && !save_registers (regcache, RISCV_FIRST_FP_REGNUM, + RISCV_LAST_FP_REGNUM + 1)) + return false; + + // TODO: add saving vector registers + + return true; +} + +/* Handler for riscv system call instruction recording. */ + +static int +riscv_linux_syscall_record (struct regcache *regcache, + unsigned long svc_number) +{ + auto syscall_gdb = riscv64_canonicalize_syscall (svc_number); + + if (record_debug > 1) + { + gdb_printf (gdb_stdlog, "Made syscall %s.\n", plongest (svc_number)); + } + + if (syscall_gdb == gdb_sys_no_syscall) + { + gdb_printf (gdb_stderr, + _ ("Process record and replay target doesn't " + "support syscall number %s\n"), + plongest (svc_number)); + return -1; + } + + if (syscall_gdb == gdb_sys_sigreturn || syscall_gdb == gdb_sys_rt_sigreturn) + { + if (!riscv_all_but_pc_registers_record (regcache)) + return -1; + return 0; + } + + auto ret = record_linux_system_call (syscall_gdb, regcache, + &riscv_linux_record_tdep); + if (ret != 0) + return ret; + + /* Record the return value of the system call. */ + if (record_full_arch_list_add_reg (regcache, RISCV_A0_REGNUM)) + return -1; + + return 0; +} + +/* Initialize the riscv64_linux_record_tdep. */ +/* These values are the size of the type that will be used in a system + call. They are obtained from Linux Kernel source. */ +static void +riscv64_linux_record_tdep_init ( + struct gdbarch *gdbarch, struct linux_record_tdep &riscv_linux_record_tdep) +{ + riscv_linux_record_tdep.size_pointer + = gdbarch_ptr_bit (gdbarch) / TARGET_CHAR_BIT; + riscv_linux_record_tdep.size__old_kernel_stat + = 48; // arch/powerpc/include/uapi/asm/stat.h: 2+2+2+2+2+2+2+2+8+8+8+8 + riscv_linux_record_tdep.size_tms = 32; + riscv_linux_record_tdep.size_loff_t = 8; + riscv_linux_record_tdep.size_flock = 32; + riscv_linux_record_tdep.size_oldold_utsname + = 45; // include/uapi/linux/utsname.h:7:9+9+9+9+9 + riscv_linux_record_tdep.size_ustat = 32; + riscv_linux_record_tdep.size_old_sigaction + = 32; // include/linux/signal_types.h:60:8+8+8+8 + riscv_linux_record_tdep.size_old_sigset_t + = 8; // arch/powerpc/include/uapi/asm/signal.h:15 + riscv_linux_record_tdep.size_rlimit = 16; + riscv_linux_record_tdep.size_rusage = 144; + riscv_linux_record_tdep.size_timeval = 8; // include/uapi/linux/time.h:17:8+8 + riscv_linux_record_tdep.size_timezone = 8; + riscv_linux_record_tdep.size_old_gid_t + = 2; // arch/arm64/include/uapi/asm/posix_types.h:6 + riscv_linux_record_tdep.size_old_uid_t + = 2; // arch/arm64/include/uapi/asm/posix_types.h:5 + riscv_linux_record_tdep.size_fd_set = 128; + riscv_linux_record_tdep.size_old_dirent = 268; //? + riscv_linux_record_tdep.size_statfs = 120; + riscv_linux_record_tdep.size_statfs64 = 120; + riscv_linux_record_tdep.size_sockaddr = 16; + riscv_linux_record_tdep.size_int + = gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT; + riscv_linux_record_tdep.size_long + = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT; + riscv_linux_record_tdep.size_ulong + = gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT; + riscv_linux_record_tdep.size_msghdr = 104; + riscv_linux_record_tdep.size_itimerval + = 16; // include/uapi/linux/time.h:27:8+8 + riscv_linux_record_tdep.size_stat = 128; + riscv_linux_record_tdep.size_old_utsname + = 325; // include/uapi/linux/utsname.h:17:65+65+65+65+65 + riscv_linux_record_tdep.size_sysinfo = 112; + riscv_linux_record_tdep.size_msqid_ds = 104; + riscv_linux_record_tdep.size_shmid_ds = 88; + riscv_linux_record_tdep.size_new_utsname = 390; + riscv_linux_record_tdep.size_timex + = 188; // include/uapi/linux/timex.h:65:4+8+8+8+8+4+8+8+8+8+8+8+8+4+8+8+8+8+8+4+11*4 + riscv_linux_record_tdep.size_mem_dqinfo = 72; + riscv_linux_record_tdep.size_if_dqblk + = 68; // include/uapi/linux/quota.h:111:8*8+4 + riscv_linux_record_tdep.size_fs_quota_stat + = 64; // include/uapi/linux/dqblk_xfs.h:165:1+2+1+20+20+4+4+4+4+2+2 + riscv_linux_record_tdep.size_timespec + = 16; // include/uapi/linux/time.h:11:8+8 + riscv_linux_record_tdep.size_pollfd = 8; + riscv_linux_record_tdep.size_NFS_FHSIZE = 32; // include/uapi/linux/nfs.h:20 + riscv_linux_record_tdep.size_knfsd_fh = 36; // fs/nfsd/nfsfh.h:47:4+32 + riscv_linux_record_tdep.size_TASK_COMM_LEN = 4; + riscv_linux_record_tdep.size_sigaction = 24; + riscv_linux_record_tdep.size_sigset_t = 8; + riscv_linux_record_tdep.size_siginfo_t = 128; + riscv_linux_record_tdep.size_cap_user_data_t = 8; + riscv_linux_record_tdep.size_stack_t = 24; + riscv_linux_record_tdep.size_off_t = riscv_linux_record_tdep.size_long; + riscv_linux_record_tdep.size_stat64 + = 136; // include/uapi/asm-generic/stat.h:49:8+8+4+4+4+4+8+8+8+4+4+8+4+4+4+4+4+4+4+4 + riscv_linux_record_tdep.size_gid_t = 4; + riscv_linux_record_tdep.size_uid_t = 4; + riscv_linux_record_tdep.size_PAGE_SIZE = 4096; + riscv_linux_record_tdep.size_flock64 = 32; + riscv_linux_record_tdep.size_user_desc + = 37; // arch/x86/include/uapi/asm/ldt.h:21:4*9+1 + riscv_linux_record_tdep.size_io_event = 32; + riscv_linux_record_tdep.size_iocb = 64; + riscv_linux_record_tdep.size_epoll_event = 16; + riscv_linux_record_tdep.size_itimerspec + = riscv_linux_record_tdep.size_timespec * 2; + riscv_linux_record_tdep.size_mq_attr = 64; + riscv_linux_record_tdep.size_termios = 36; + riscv_linux_record_tdep.size_termios2 = 44; + riscv_linux_record_tdep.size_pid_t = 4; + riscv_linux_record_tdep.size_winsize = 8; + riscv_linux_record_tdep.size_serial_struct = 72; + riscv_linux_record_tdep.size_serial_icounter_struct = 80; + riscv_linux_record_tdep.size_hayes_esp_config = 12; + riscv_linux_record_tdep.size_size_t = 8; + riscv_linux_record_tdep.size_iovec = 16; + riscv_linux_record_tdep.size_time_t = 8; // tools/include/nolibc/std.h:34 + + riscv_linux_record_tdep.ioctl_TCGETS = 0x5401; + riscv_linux_record_tdep.ioctl_TCSETS = 0x5402; + riscv_linux_record_tdep.ioctl_TCSETSW = 0x5403; + riscv_linux_record_tdep.ioctl_TCSETSF = 0x5404; + riscv_linux_record_tdep.ioctl_TCGETA = 0x5405; + riscv_linux_record_tdep.ioctl_TCSETA = 0x5406; + riscv_linux_record_tdep.ioctl_TCSETAW = 0x5407; + riscv_linux_record_tdep.ioctl_TCSETAF = 0x5408; + riscv_linux_record_tdep.ioctl_TCSBRK = 0x5409; + riscv_linux_record_tdep.ioctl_TCXONC = 0x540a; + riscv_linux_record_tdep.ioctl_TCFLSH = 0x540b; + riscv_linux_record_tdep.ioctl_TIOCEXCL = 0x540c; + riscv_linux_record_tdep.ioctl_TIOCNXCL = 0x540d; + riscv_linux_record_tdep.ioctl_TIOCSCTTY = 0x540e; + riscv_linux_record_tdep.ioctl_TIOCGPGRP = 0x540f; + riscv_linux_record_tdep.ioctl_TIOCSPGRP = 0x5410; + riscv_linux_record_tdep.ioctl_TIOCOUTQ = 0x5411; + riscv_linux_record_tdep.ioctl_TIOCSTI = 0x5412; + riscv_linux_record_tdep.ioctl_TIOCGWINSZ = 0x5413; + riscv_linux_record_tdep.ioctl_TIOCSWINSZ = 0x5414; + riscv_linux_record_tdep.ioctl_TIOCMGET = 0x5415; + riscv_linux_record_tdep.ioctl_TIOCMBIS = 0x5416; + riscv_linux_record_tdep.ioctl_TIOCMBIC = 0x5417; + riscv_linux_record_tdep.ioctl_TIOCMSET = 0x5418; + riscv_linux_record_tdep.ioctl_TIOCGSOFTCAR = 0x5419; + riscv_linux_record_tdep.ioctl_TIOCSSOFTCAR = 0x541a; + riscv_linux_record_tdep.ioctl_FIONREAD = 0x541b; + riscv_linux_record_tdep.ioctl_TIOCINQ + = riscv_linux_record_tdep.ioctl_FIONREAD; + riscv_linux_record_tdep.ioctl_TIOCLINUX = 0x541c; + riscv_linux_record_tdep.ioctl_TIOCCONS = 0x541d; + riscv_linux_record_tdep.ioctl_TIOCGSERIAL = 0x541e; + riscv_linux_record_tdep.ioctl_TIOCSSERIAL = 0x541f; + riscv_linux_record_tdep.ioctl_TIOCPKT = 0x5420; + riscv_linux_record_tdep.ioctl_FIONBIO = 0x5421; + riscv_linux_record_tdep.ioctl_TIOCNOTTY = 0x5422; + riscv_linux_record_tdep.ioctl_TIOCSETD = 0x5423; + riscv_linux_record_tdep.ioctl_TIOCGETD = 0x5424; + riscv_linux_record_tdep.ioctl_TCSBRKP = 0x5425; + riscv_linux_record_tdep.ioctl_TIOCTTYGSTRUCT = 0x5426; + riscv_linux_record_tdep.ioctl_TIOCSBRK = 0x5427; + riscv_linux_record_tdep.ioctl_TIOCCBRK = 0x5428; + riscv_linux_record_tdep.ioctl_TIOCGSID = 0x5429; + riscv_linux_record_tdep.ioctl_TCGETS2 = 0x802c542a; + riscv_linux_record_tdep.ioctl_TCSETS2 = 0x402c542b; + riscv_linux_record_tdep.ioctl_TCSETSW2 = 0x402c542c; + riscv_linux_record_tdep.ioctl_TCSETSF2 = 0x402c542d; + riscv_linux_record_tdep.ioctl_TIOCGPTN = 0x80045430; + riscv_linux_record_tdep.ioctl_TIOCSPTLCK = 0x40045431; + riscv_linux_record_tdep.ioctl_FIONCLEX = 0x5450; + riscv_linux_record_tdep.ioctl_FIOCLEX = 0x5451; + riscv_linux_record_tdep.ioctl_FIOASYNC = 0x5452; + riscv_linux_record_tdep.ioctl_TIOCSERCONFIG = 0x5453; + riscv_linux_record_tdep.ioctl_TIOCSERGWILD = 0x5454; + riscv_linux_record_tdep.ioctl_TIOCSERSWILD = 0x5455; + riscv_linux_record_tdep.ioctl_TIOCGLCKTRMIOS = 0x5456; + riscv_linux_record_tdep.ioctl_TIOCSLCKTRMIOS = 0x5457; + riscv_linux_record_tdep.ioctl_TIOCSERGSTRUCT = 0x5458; + riscv_linux_record_tdep.ioctl_TIOCSERGETLSR = 0x5459; + riscv_linux_record_tdep.ioctl_TIOCSERGETMULTI = 0x545a; + riscv_linux_record_tdep.ioctl_TIOCSERSETMULTI = 0x545b; + riscv_linux_record_tdep.ioctl_TIOCMIWAIT = 0x545c; + riscv_linux_record_tdep.ioctl_TIOCGICOUNT = 0x545d; + riscv_linux_record_tdep.ioctl_TIOCGHAYESESP = 0x545e; + riscv_linux_record_tdep.ioctl_TIOCSHAYESESP = 0x545f; + riscv_linux_record_tdep.ioctl_FIOQSIZE = 0x5460; + + riscv_linux_record_tdep.fcntl_F_GETLK = 5; + riscv_linux_record_tdep.fcntl_F_GETLK64 = 12; + riscv_linux_record_tdep.fcntl_F_SETLK64 = 13; + riscv_linux_record_tdep.fcntl_F_SETLKW64 = 14; + + riscv_linux_record_tdep.arg1 = RISCV_A0_REGNUM; + riscv_linux_record_tdep.arg2 = RISCV_A1_REGNUM; + riscv_linux_record_tdep.arg3 = RISCV_A2_REGNUM; + riscv_linux_record_tdep.arg4 = RISCV_A3_REGNUM; + riscv_linux_record_tdep.arg5 = RISCV_A4_REGNUM; + riscv_linux_record_tdep.arg6 = RISCV_A5_REGNUM; + riscv_linux_record_tdep.arg7 = RISCV_A7_REGNUM; +} + /* Initialize RISC-V Linux ABI info. */ static void @@ -205,6 +463,9 @@ riscv_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch) tramp_frame_prepend_unwinder (gdbarch, &riscv_linux_sigframe); tdep->syscall_next_pc = riscv_linux_syscall_next_pc; + tdep->riscv_syscall_record = riscv_linux_syscall_record; + + riscv64_linux_record_tdep_init (gdbarch, riscv_linux_record_tdep); } /* Initialize RISC-V Linux target support. */ diff --git a/gdb/riscv-linux-tdep.h b/gdb/riscv-linux-tdep.h new file mode 100644 index 00000000000..5ee2c94387f --- /dev/null +++ b/gdb/riscv-linux-tdep.h @@ -0,0 +1,29 @@ +/* Copyright (C) 2024 Free Software Foundation, Inc. + Contributed by Timur Golubovich + + This file is part of GDB. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#ifndef RISCV_LINUX_TDEP_H +#define RISCV_LINUX_TDEP_H + +#include "linux-record.h" + +/* riscv64_canonicalize_syscall maps from the native riscv Linux set + of syscall ids into a canonical set of syscall ids used by + process record. */ +extern enum gdb_syscall riscv64_canonicalize_syscall (int syscall); + +#endif /* RISCV_LINUX_TDEP_H */ diff --git a/gdb/riscv-tdep.c b/gdb/riscv-tdep.c index 932708ca4e9..29013bc46c1 100644 --- a/gdb/riscv-tdep.c +++ b/gdb/riscv-tdep.c @@ -54,9 +54,12 @@ #include "observable.h" #include "prologue-value.h" #include "arch/riscv.h" +#include "record-full.h" #include "riscv-ravenscar-thread.h" #include "gdbsupport/gdb-safe-ctype.h" +#include + /* The stack must be 16-byte aligned. */ #define SP_ALIGNMENT 16 @@ -1655,6 +1658,11 @@ class riscv_insn int imm_signed () const { return m_imm.s; } + /* Fetch instruction from target memory at ADDR, return the content of + the instruction, and update LEN with the instruction length. */ + static ULONGEST fetch_instruction (struct gdbarch *gdbarch, CORE_ADDR addr, + int *len); + private: /* Extract 5 bit register field at OFFSET from instruction OPCODE. */ @@ -1800,11 +1808,6 @@ class riscv_insn m_rs2 = decode_register_index_short (ival, OP_SH_CRS2S); } - /* Fetch instruction from target memory at ADDR, return the content of - the instruction, and update LEN with the instruction length. */ - static ULONGEST fetch_instruction (struct gdbarch *gdbarch, - CORE_ADDR addr, int *len); - /* The length of the instruction in bytes. Should be 2 or 4. */ int m_length; @@ -4415,6 +4418,9 @@ riscv_gdbarch_init (struct gdbarch_info info, set_gdbarch_stap_register_indirection_suffixes (gdbarch, stap_register_indirection_suffixes); + /* Process record-replay */ + set_gdbarch_process_record (gdbarch, riscv_process_record); + /* Hook in OS ABI-specific overrides, if they have been registered. */ gdbarch_init_osabi (info, gdbarch); @@ -4833,3 +4839,690 @@ this option can be used."), &setriscvcmdlist, &showriscvcmdlist); } + +static bool +try_read (struct regcache *regcache, int regnum, ULONGEST &addr) +{ + gdb_assert (regcache); + + if (regcache->raw_read (regnum, &addr) + != register_status::REG_VALID) + { + warning (_ ("Can not read at address %lx"), addr); + return false; + } + return true; +} + +class riscv_recorded_insn final +{ +public: + using regnum_type = int; + using memory_type = std::pair; + + enum class record_type + { + UNKNOWN, + ORDINARY, + + // corner cases + ECALL, + EBREAK, + }; + +private: + using recorded_regs = std::vector; + using recorded_mems = std::vector; + + using mem_addr = decltype (std::declval ().first); + using mem_len = decltype (std::declval ().second); + + record_type m_record_type = record_type::UNKNOWN; + + bool m_error_occured = false; + + recorded_regs m_regs; + recorded_mems m_mems; + + /* Helper for decode 16-bit instruction RS1. */ + static regnum_type + decode_crs1_short (ULONGEST opcode) noexcept + { + return ((opcode >> OP_SH_CRS1S) & OP_MASK_CRS1S) + 8; + } + + /* Helper for decode 16-bit instruction RS2. */ + static regnum_type + decode_crs2_short (ULONGEST opcode) noexcept + { + return ((opcode >> OP_SH_CRS2S) & OP_MASK_CRS2S) + 8; + } + + /* Helper for decode 16-bit instruction CRS1. */ + static regnum_type + decode_crs1 (ULONGEST opcode) noexcept + { + return ((opcode >> OP_SH_RD) & OP_MASK_RD); + } + + /* Helper for decode 16-bit instruction CRS2. */ + static regnum_type + decode_crs2 (ULONGEST opcode) noexcept + { + return ((opcode >> OP_SH_CRS2) & OP_MASK_CRS2); + } + + /* Helper for decode 32-bit instruction RD. */ + static regnum_type + decode_rd (ULONGEST ival) noexcept + { + return (ival >> OP_SH_RD) & OP_MASK_RD; + } + + /* Helper for decode 32-bit instruction RS1. */ + static regnum_type + decode_rs1 (ULONGEST ival) noexcept + { + return (ival >> OP_SH_RS1) & OP_MASK_RS1; + } + + /* Helper for decode 32-bit instruction RS2. */ + static regnum_type + decode_rs2 (ULONGEST ival) noexcept + { + return (ival >> OP_SH_RS2) & OP_MASK_RS2; + } + + /* Helper for decode 32-bit instruction CSR. */ + static regnum_type + decode_csr (ULONGEST ival) noexcept + { + return (ival >> OP_SH_CSR) & OP_MASK_CSR; + } + + bool + set_ordinary_record_type () noexcept + { + m_record_type = record_type::ORDINARY; + return true; + } + + bool + set_error () noexcept + { + m_error_occured = true; + return false; + } + + bool + has_error () const noexcept + { + return m_error_occured; + } + + bool + read_reg (struct regcache *regcache, regnum_type reg, + ULONGEST &addr) noexcept + { + gdb_assert (regcache); + + if (!try_read (regcache, reg, addr)) + { + return set_error (); + } + return true; + } + + bool + save_reg (regnum_type regnum) noexcept + { + try + { + m_regs.emplace_back (regnum); + return true; + } + catch (const std::bad_alloc &ex) + { + warning (_ ("Exception was caught during reverse execution: %s"), + ex.what ()); + return set_error (); + } + } + + bool + save_mem (mem_addr addr, mem_len len) noexcept + { + try + { + m_mems.emplace_back (addr, len); + return true; + } + catch (const std::bad_alloc &ex) + { + warning (_ ("Exception was caught during reverse execution: %s"), + ex.what ()); + return set_error (); + } + } + + static bool + need_save_pc (ULONGEST ival) noexcept + { + return is_beq_insn (ival) || is_bne_insn (ival) || is_blt_insn (ival) + || is_bge_insn (ival) || is_bltu_insn (ival) || is_bgeu_insn (ival) + || is_fence_insn (ival) || is_pause_insn (ival) + || is_fence_i_insn (ival); + } + + /* Returns true if instruction is classified */ + bool + try_save_pc (ULONGEST ival) noexcept + { + if (!need_save_pc (ival)) + return false; + + return set_ordinary_record_type (); + } + + static bool + need_save_pc_rd (ULONGEST ival) noexcept + { + return is_lui_insn (ival) || is_auipc_insn (ival) || is_jal_insn (ival) + || is_jalr_insn (ival) || is_lb_insn (ival) || is_lh_insn (ival) + || is_lw_insn (ival) || is_ld_insn (ival) || is_lbu_insn (ival) + || is_lhu_insn (ival) || is_lb_insn (ival) || is_lh_insn (ival) + || is_lw_insn (ival) || is_ld_insn (ival) || is_lbu_insn (ival) + || is_lhu_insn (ival) || is_addi_insn (ival) || is_slti_insn (ival) + || is_sltiu_insn (ival) || is_xori_insn (ival) || is_ori_insn (ival) + || is_andi_insn (ival) || is_slli_insn (ival) || is_srli_insn (ival) + || is_srai_insn (ival) || is_add_insn (ival) || is_sub_insn (ival) + || is_sll_insn (ival) || is_slt_insn (ival) || is_sltu_insn (ival) + || is_xor_insn (ival) || is_srl_insn (ival) || is_sra_insn (ival) + || is_or_insn (ival) || is_and_insn (ival) || is_lwu_insn (ival) + || is_addiw_insn (ival) || is_slliw_insn (ival) + || is_srliw_insn (ival) || is_sraiw_insn (ival) + || is_addw_insn (ival) || is_subw_insn (ival) || is_sllw_insn (ival) + || is_srlw_insn (ival) || is_sraw_insn (ival) || is_mul_insn (ival) + || is_mulh_insn (ival) || is_mulhsu_insn (ival) + || is_mulhu_insn (ival) || is_div_insn (ival) || is_divu_insn (ival) + || is_rem_insn (ival) || is_remu_insn (ival) || is_mulw_insn (ival) + || is_divw_insn (ival) || is_divuw_insn (ival) + || is_remw_insn (ival) || is_remuw_insn (ival) + || is_lr_w_insn (ival) || is_lr_d_insn (ival) + || is_fcvt_l_s_insn (ival) || is_fcvt_lu_s_insn (ival) + || is_feq_d_insn (ival) || is_flt_d_insn (ival) + || is_fle_d_insn (ival) || is_fclass_d_insn (ival) + || is_fcvt_w_d_insn (ival) || is_fcvt_wu_d_insn (ival) + || is_fcvt_d_w_insn (ival) || is_fcvt_l_d_insn (ival) + || is_fcvt_lu_d_insn (ival) || is_fmv_x_d_insn (ival); + } + + /* Returns true if instruction is classified. Needs error checking after */ + bool + try_save_pc_rd (ULONGEST ival) noexcept + { + if (!need_save_pc_rd (ival)) + return false; + + return !save_reg (decode_rd (ival)) || set_ordinary_record_type (); + } + + static bool + need_save_pc_fprd (ULONGEST ival) noexcept + { + return is_fmadd_s_insn (ival) || is_fmsub_s_insn (ival) + || is_fnmsub_s_insn (ival) || is_fnmadd_s_insn (ival) + || is_fadd_s_insn (ival) || is_fsub_s_insn (ival) + || is_fmul_s_insn (ival) || is_fdiv_s_insn (ival) + || is_fsqrt_s_insn (ival) || is_fsgnj_s_insn (ival) + || is_fsgnjn_s_insn (ival) || is_fsgnjx_s_insn (ival) + || is_fmin_s_insn (ival) || is_fmax_s_insn (ival) + || is_flw_insn (ival) || is_fld_insn (ival) + || is_fcvt_s_w_insn (ival) || is_fcvt_s_wu_insn (ival) + || is_fmv_s_x_insn (ival) || is_fcvt_s_l_insn (ival) + || is_fcvt_s_lu_insn (ival) || is_fmadd_d_insn (ival) + || is_fmsub_d_insn (ival) || is_fnmsub_d_insn (ival) + || is_fnmadd_d_insn (ival) || is_fadd_d_insn (ival) + || is_fsub_d_insn (ival) || is_fmul_d_insn (ival) + || is_fdiv_d_insn (ival) || is_fsqrt_d_insn (ival) + || is_fsgnj_d_insn (ival) || is_fsgnjn_d_insn (ival) + || is_fsgnjx_d_insn (ival) || is_fmin_d_insn (ival) + || is_fmax_d_insn (ival) || is_fcvt_s_d_insn (ival) + || is_fcvt_d_s_insn (ival) || is_fcvt_d_wu_insn (ival) + || is_fcvt_d_l_insn (ival) || is_fcvt_d_lu_insn (ival) + || is_fmv_d_x_insn (ival); + } + + /* Returns true if instruction is classified. Needs error checking after */ + bool + try_save_pc_fprd (ULONGEST ival) noexcept + { + if (!need_save_pc_fprd (ival)) + return false; + + return !save_reg (RISCV_FIRST_FP_REGNUM + decode_rd (ival)) + || set_ordinary_record_type (); + } + + static bool + need_save_pc_rd_csr (ULONGEST ival) noexcept + { + return is_csrrw_insn (ival) || is_csrrs_insn (ival) || is_csrrc_insn (ival) + || is_csrrwi_insn (ival) || is_csrrsi_insn (ival) + || is_csrrc_insn (ival); + } + + /* Returns true if instruction is classified. Needs error checking after */ + bool + try_save_pc_rd_csr (ULONGEST ival) noexcept + { + if (!need_save_pc_rd_csr (ival)) + return false; + + return !save_reg (decode_rd (ival)) + || !save_reg (RISCV_FIRST_CSR_REGNUM + decode_csr (ival)) + || set_ordinary_record_type (); + } + + /* If return value is > 0, than instruction needs saving memory len */ + static mem_len + need_save_pc_mem (ULONGEST ival) noexcept + { + if (is_sb_insn (ival)) + return 1; + if (is_sh_insn (ival)) + return 2; + if (is_sw_insn (ival) || is_fsw_insn (ival)) + return 4; + if (is_sd_insn (ival) || is_fsd_insn (ival)) + return 8; + return 0; + } + + /* Returns true if instruction is classified. Needs error checking after */ + bool + try_save_pc_mem (ULONGEST ival, struct regcache *regcache) noexcept + { + gdb_assert (regcache); + + mem_addr addr = 0; + auto len = need_save_pc_mem (ival); + if (len <= 0) + return false; + + mem_len offset = EXTRACT_STYPE_IMM (ival); + return !read_reg (regcache, decode_rs1 (ival), addr) + || !save_mem (addr + offset, len) || set_ordinary_record_type (); + } + + /* If return value is > 0, than instruction needs saving memory len */ + static mem_len + need_save_pc_rd_mem (ULONGEST ival) noexcept + { + if (is_sc_w_insn (ival) || is_amoadd_w_insn (ival) + || is_amoxor_w_insn (ival) || is_amoand_w_insn (ival) + || is_amoor_w_insn (ival) || is_amomin_w_insn (ival) + || is_amomax_w_insn (ival) || is_amominu_w_insn (ival) + || is_amomaxu_w_insn (ival)) + return 4; + if (is_sc_d_insn (ival) || is_amoadd_d_insn (ival) + || is_amoxor_d_insn (ival) || is_amoand_d_insn (ival) + || is_amoor_d_insn (ival) || is_amomin_d_insn (ival) + || is_amomax_d_insn (ival) || is_amominu_d_insn (ival) + || is_amomaxu_d_insn (ival)) + return 8; + return 0; + } + + /* Returns true if instruction is classified. Needs error checking after */ + bool + try_save_pc_rd_mem (ULONGEST ival, struct regcache *regcache) noexcept + { + gdb_assert (regcache); + + auto len = need_save_pc_rd_mem (ival); + mem_addr addr = 0; + if (len <= 0) + return false; + + return !read_reg (regcache, decode_rs1 (ival), addr) + || !save_mem (addr, len) || !save_reg (decode_rd (ival)) + || set_ordinary_record_type (); + } + + /* If return value is > 0, than instruction needs saving memory len */ + static mem_len + need_save_pc_rs2_rd_mem (ULONGEST ival) noexcept + { + if (is_amoswap_w_insn (ival)) + return 4; + if (is_amoswap_d_insn (ival)) + return 8; + return 0; + } + + /* Returns true if instruction is classified. Needs error checking after */ + bool + try_save_pc_rs2_rd_mem (ULONGEST ival, struct regcache *regcache) noexcept + { + gdb_assert (regcache); + + mem_addr addr = 0; + auto len = need_save_pc_rs2_rd_mem (ival); + if (len <= 0) + return false; + + return !read_reg (regcache, decode_rs1 (ival), addr) + || !save_mem (addr, len) || !save_reg (decode_rs2 (ival)) + || !save_reg (decode_rd (ival)) || set_ordinary_record_type (); + } + + /* Returns true if instruction is successfully recorder. + Else returns false */ + bool + record_insn_len4 (ULONGEST ival, struct regcache *regcache) noexcept + { + gdb_assert (regcache); + + if (is_ecall_insn (ival)) + { + m_record_type = record_type::ECALL; + return true; + } + + if (is_ebreak_insn (ival)) + { + m_record_type = record_type::EBREAK; + return true; + } + + if (try_save_pc (ival) || try_save_pc_rd (ival) || try_save_pc_fprd (ival) + || try_save_pc_rd_csr (ival) || try_save_pc_mem (ival, regcache) + || try_save_pc_rd_mem (ival, regcache) + || try_save_pc_rs2_rd_mem (ival, regcache)) + { + return !has_error (); + } + + warning (_ ("Currently this instruction with len 4(%lx) is unsupported"), + ival); + return false; + } + + /* Returns true if instruction is successfully recorder. + Else returns false */ + bool + record_insn_len2 (ULONGEST ival, struct regcache *regcache, + struct gdbarch *gdbarch) noexcept + { + gdb_assert (regcache); + gdb_assert (gdbarch); + + mem_addr addr = 0; + auto xlen = riscv_isa_xlen (gdbarch); + + /* The order here is very important, because + opcodes of some instructions may be the same. */ + + if (is_c_addi4spn_insn (ival) || is_c_lw_insn (ival) + || (xlen == 8 && is_c_ld_insn (ival))) + { + return !save_reg (decode_crs2_short (ival)) + || set_ordinary_record_type (); + } + + if (is_c_fld_insn (ival) || (xlen == 4 && is_c_flw_insn (ival))) + { + return !save_reg (RISCV_FIRST_FP_REGNUM + decode_crs2_short (ival)) + || set_ordinary_record_type (); + } + + if (is_c_fsd_insn (ival) || (xlen == 8 && is_c_sd_insn (ival))) + { + int offset = EXTRACT_CLTYPE_LD_IMM (ival); + return !read_reg (regcache, decode_crs1_short (ival), addr) + || !save_mem (addr + offset, 8) || set_ordinary_record_type (); + } + + if ((xlen == 4 && is_c_fsw_insn (ival)) || is_c_sw_insn (ival)) + { + int offset = EXTRACT_CLTYPE_LW_IMM (ival); + return !read_reg (regcache, decode_crs1_short (ival), addr) + || !save_mem (addr + offset, 4) || set_ordinary_record_type (); + } + + if (is_c_nop_insn (ival)) + { + return set_ordinary_record_type (); + } + + if (is_c_addi_insn (ival)) + { + return !save_reg (decode_crs1 (ival)) || set_ordinary_record_type (); + } + + if (xlen == 4 && is_c_jal_insn (ival)) + { + return !save_reg (RISCV_RA_REGNUM) || set_ordinary_record_type (); + } + + if ((xlen == 8 && is_c_addiw_insn (ival)) || is_c_li_insn (ival)) + { + return !save_reg (decode_crs1 (ival)) || set_ordinary_record_type (); + } + + if (is_c_addi16sp_insn (ival)) + { + return !save_reg (RISCV_SP_REGNUM) || set_ordinary_record_type (); + } + + if (is_c_lui_insn (ival)) + { + return !save_reg (decode_crs1 (ival)) || set_ordinary_record_type (); + } + + if (is_c_srli_insn (ival) || is_c_srai_insn (ival) || is_c_andi_insn (ival) + || is_c_sub_insn (ival) || is_c_xor_insn (ival) || is_c_or_insn (ival) + || is_c_and_insn (ival) || (xlen == 8 && is_c_subw_insn (ival)) + || (xlen == 8 && is_c_addw_insn (ival))) + { + return !save_reg (decode_crs1_short (ival)) + || set_ordinary_record_type (); + } + + if (is_c_j_insn (ival) || is_c_beqz_insn (ival) || is_c_bnez_insn (ival)) + { + return set_ordinary_record_type (); + } + + if (is_c_slli_insn (ival)) + { + return !save_reg (decode_crs1 (ival)) || set_ordinary_record_type (); + } + + if (is_c_fldsp_insn (ival) || (xlen == 4 && is_c_flwsp_insn (ival))) + { + return !save_reg (RISCV_FIRST_FP_REGNUM + decode_crs1 (ival)) + || set_ordinary_record_type (); + } + + if (is_c_lwsp_insn (ival) || (xlen == 8 && is_c_ldsp_insn (ival))) + { + return !save_reg (decode_crs1 (ival)) || set_ordinary_record_type (); + } + + if (is_c_jr_insn (ival)) + { + return set_ordinary_record_type (); + } + + if (is_c_mv_insn (ival)) + { + return !save_reg (decode_crs1 (ival)) || set_ordinary_record_type (); + } + + if (is_c_ebreak_insn (ival)) + { + m_record_type = record_type::EBREAK; + return true; + } + + if (is_c_jalr_insn (ival)) + { + return !save_reg (RISCV_RA_REGNUM) || set_ordinary_record_type (); + } + + if (is_c_add_insn (ival)) + { + return !save_reg (decode_crs1 (ival)) || set_ordinary_record_type (); + } + + if (is_c_fsdsp_insn (ival) || (xlen == 8 && is_c_sdsp_insn (ival))) + { + int offset = EXTRACT_CSSTYPE_SDSP_IMM (ival); + return !read_reg (regcache, RISCV_SP_REGNUM, addr) + || !save_mem (addr + offset, 8) || set_ordinary_record_type (); + } + + if (is_c_swsp_insn (ival) || (xlen == 4 && is_c_fswsp_insn (ival))) + { + int offset = EXTRACT_CSSTYPE_SWSP_IMM (ival); + return !read_reg (regcache, RISCV_SP_REGNUM, addr) + || !save_mem (addr + offset, 4) || set_ordinary_record_type (); + } + + warning (_ ("Currently this instruction with len 2(%lx) is unsupported"), + ival); + return false; + } + +public: + using regs_iter = recorded_regs::const_iterator; + using mems_iter = recorded_mems::const_iterator; + + bool + record (gdbarch *gdbarch, struct regcache *regcache, CORE_ADDR addr) noexcept + { + int m_length = 0; + auto ival = riscv_insn::fetch_instruction (gdbarch, addr, &m_length); + if (!save_reg (RISCV_PC_REGNUM)) + return false; + + if (m_length == 4) + return record_insn_len4 (ival, regcache); + + if (m_length == 2) + return record_insn_len2 (ival, regcache, gdbarch); + + /* 6 bytes or more. If the instruction is longer than 8 bytes, we don't +have full instruction bits in ival. At least, such long instructions +are not defined yet, so just ignore it. */ + gdb_assert (m_length > 0 && m_length % 2 == 0); + + warning (_ ("Can not record unknown instruction (opcode = %lx)"), ival); + return false; + } + + record_type + get_record_type () const noexcept + { + return m_record_type; + } + + regs_iter + regs_begin () const noexcept + { + return m_regs.begin (); + } + + regs_iter + regs_end () const noexcept + { + return m_regs.end (); + } + + mems_iter + mems_begin () const noexcept + { + return m_mems.begin (); + } + + mems_iter + mems_end () const noexcept + { + return m_mems.end (); + } +}; + +static int +riscv_make_record_process (struct gdbarch *gdbarch, struct regcache *regcache, + const riscv_recorded_insn &insn) +{ + gdb_assert (gdbarch && regcache); + + riscv_gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); + auto regs_begin = insn.regs_begin (); + auto regs_end = insn.regs_end (); + if (std::any_of (regs_begin, regs_end, [®cache] (auto &®_it) { + return record_full_arch_list_add_reg (regcache, reg_it); + })) + return -1; + + auto mems_begin = insn.mems_begin (); + auto mems_end = insn.mems_end (); + if (std::any_of (mems_begin, mems_end, [] (auto &&mem_it) { + return record_full_arch_list_add_mem (mem_it.first, mem_it.second); + })) + return -1; + + switch (insn.get_record_type ()) + { + case riscv_recorded_insn::record_type::ORDINARY: + break; + + case riscv_recorded_insn::record_type::ECALL: + { + if (!tdep->riscv_syscall_record) + { + warning (_ ("Syscall record is not supported")); + return -1; + } + ULONGEST reg_val = 0; + if (!try_read (regcache, RISCV_A7_REGNUM, reg_val)) + { + return -1; + } + return tdep->riscv_syscall_record (regcache, reg_val); + } + + case riscv_recorded_insn::record_type::EBREAK: + break; + + default: + return -1; + } + return 0; +} + +int +riscv_process_record (struct gdbarch *gdbarch, struct regcache *regcache, + CORE_ADDR addr) +{ + gdb_assert (gdbarch && regcache); + + riscv_recorded_insn insn; + if (!insn.record (gdbarch, regcache, addr)) + { + record_full_arch_list_add_end (); + return -1; + } + + auto ret_val = riscv_make_record_process (gdbarch, regcache, insn); + + if (record_full_arch_list_add_end ()) + { + return -1; + } + + return ret_val; +} diff --git a/gdb/riscv-tdep.h b/gdb/riscv-tdep.h index 4bdc2e7a3d5..505371ba4f6 100644 --- a/gdb/riscv-tdep.h +++ b/gdb/riscv-tdep.h @@ -35,6 +35,10 @@ enum RISCV_FP_REGNUM = 8, /* Frame Pointer. */ RISCV_A0_REGNUM = 10, /* First argument. */ RISCV_A1_REGNUM = 11, /* Second argument. */ + RISCV_A2_REGNUM = 12, /* Third argument. */ + RISCV_A3_REGNUM = 13, /* Forth argument. */ + RISCV_A4_REGNUM = 14, /* Fifth argument. */ + RISCV_A5_REGNUM = 15, /* Sixth argument. */ RISCV_A7_REGNUM = 17, /* Seventh argument. */ RISCV_PC_REGNUM = 32, /* Program Counter. */ @@ -113,6 +117,11 @@ struct riscv_gdbarch_tdep : gdbarch_tdep_base /* Return the expected next PC assuming FRAME is stopped at a syscall instruction. */ CORE_ADDR (*syscall_next_pc) (const frame_info_ptr &frame) = nullptr; + + /* Syscall record. */ + int (*riscv_syscall_record) (struct regcache *regcache, + unsigned long svc_number) + = nullptr; }; @@ -177,6 +186,12 @@ extern void riscv_supply_regset (const struct regset *regset, struct regcache *regcache, int regnum, const void *regs, size_t len); +/* Parse the current instruction, and record the values of the + registers and memory that will be changed by the current + instruction. Returns -1 if something goes wrong, 0 otherwise. */ +extern int riscv_process_record (struct gdbarch *gdbarch, + struct regcache *regcache, CORE_ADDR addr); + /* The names of the RISC-V target description features. */ extern const char *riscv_feature_name_csr; diff --git a/gdb/syscalls/riscv-canonicalize-syscall-gen.py b/gdb/syscalls/riscv-canonicalize-syscall-gen.py new file mode 100644 index 00000000000..235f858f5ff --- /dev/null +++ b/gdb/syscalls/riscv-canonicalize-syscall-gen.py @@ -0,0 +1,126 @@ +#!/usr/bin/env python3 +# pylint: disable=invalid-name + +# Copyright (C) 2024 Free Software Foundation, Inc. +# Contributed by Timur Golubovich + +# This file is part of GDB. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +import argparse +import re +import sys +from pathlib import Path as _Path + +head = """\ +/* DO NOT EDIT: Autogenerated by riscv-canonicalize-syscall-gen.py */ + +#include "defs.h" +#include "riscv-linux-tdep.h" + +enum gdb_syscall +riscv64_canonicalize_syscall (int syscall) +{ + switch (syscall) + { +""" + +tail = """\ + default: + return gdb_sys_no_syscall; + } +} +""" + + +class Generator: + def _get_gdb_syscalls(self, gdb_syscalls_path: _Path) -> list[str]: + gdb_syscalls: list[str] = [] + with open(gdb_syscalls_path, "r", encoding="UTF-8") as file: + lines = file.readlines() + for line in lines: + match = re.search(r"\s*(?Pgdb_sys_[^S]+)\S*=", line) + if match: + gdb_syscalls.append(match.group("name").strip()) + return gdb_syscalls + + def _get_canon_syscalls_lines(self, syscalls_path: _Path, gdb_syscalls: list[str]) -> list[str]: + canon_syscalls: dict[int, str] = {} + with open(syscalls_path, "r", encoding="UTF-8") as file: + lines = file.readlines() + for line in lines: + match = re.match(r"#define\s+__NR_(?P[^\s]+)\s+(?P\d+)", line) + if match: + syscall_name = match.group("name") + syscall_num = int(match.group("number")) + gdb_syscall_name = f"gdb_sys_{syscall_name}" + if gdb_syscall_name in gdb_syscalls: + canon_syscalls[syscall_num] = ( + f" case {syscall_num}: // {line} return {gdb_syscall_name};\n" + ) + # this is a place for corner cases + elif syscall_name == "mmap": + gdb_old_syscall_name = "gdb_old_mmap" + canon_syscalls[syscall_num] = f" case {syscall_num}:\n return {gdb_old_syscall_name};\n" + else: + canon_syscalls[syscall_num] = f" // case {syscall_num}: return {gdb_syscall_name};\n" + return [canon_syscalls[syscall_num] for syscall_num in sorted(canon_syscalls)] + + def generate(self, syscalls_path: _Path) -> None: + repo_path = _Path(__file__).parent.parent.parent + gdb_syscalls_path = repo_path / "gdb" / "linux-record.h" + canon_syscalls_path = repo_path / "gdb" / "riscv-canonicalize-syscall.c" + + gdb_syscalls = self._get_gdb_syscalls(gdb_syscalls_path) + canon_syscalls_lines = self._get_canon_syscalls_lines(syscalls_path, gdb_syscalls) + + with open(canon_syscalls_path, "w", encoding="UTF-8") as file: + file.writelines(head) + file.writelines(canon_syscalls_lines) + file.writelines(tail) + + +help_message = """\ +Generate file gdb/riscv-canonicalize-syscall.c +from path to riscv linux syscalls. +""" + + +def setup_parser() -> argparse.ArgumentParser: + parser = argparse.ArgumentParser(description=help_message) + parser.add_argument( + "-i", + "--input", + type=_Path, + required=True, + help="path to riscv linux syscalls (riscv-glibc/sysdeps/unix/sysv/linux/riscv/rv64/arch-syscall.h)", + ) + return parser + + +def main(argv: list[str]) -> int: + try: + parser = setup_parser() + args = parser.parse_args(argv) + generator = Generator() + generator.generate(args.input) + return 0 + except RuntimeError as e: + print(str(e)) + return -1 + + +if __name__ == "__main__": + sys.exit(main(sys.argv[1:])) diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp index 410f99e3350..b048ac7078b 100644 --- a/gdb/testsuite/lib/gdb.exp +++ b/gdb/testsuite/lib/gdb.exp @@ -3718,7 +3718,8 @@ proc supports_reverse {} { || [istarget "i\[34567\]86-*-linux*"] || [istarget "aarch64*-*-linux*"] || [istarget "powerpc*-*-linux*"] - || [istarget "s390*-*-linux*"] } { + || [istarget "s390*-*-linux*"] + || [istarget "riscv*-*-*"] } { return 1 } -- 2.34.1