From bd5969fc876a10b18613302db7087ef3c40f18e1 Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Thu, 7 Mar 2024 17:28:00 -0500 Subject: lib: Add mlibc Signed-off-by: Ian Moffett --- lib/mlibc/sysdeps/linux/x86/arch-syscall.cpp | 90 ++++++ lib/mlibc/sysdeps/linux/x86/cp_syscall.S | 42 +++ lib/mlibc/sysdeps/linux/x86/crt-src/Scrt1.S | 29 ++ lib/mlibc/sysdeps/linux/x86/crt-src/crt1.S | 18 ++ lib/mlibc/sysdeps/linux/x86/crt-src/crti.S | 11 + lib/mlibc/sysdeps/linux/x86/crt-src/crtn.S | 9 + lib/mlibc/sysdeps/linux/x86/signals.S | 18 ++ lib/mlibc/sysdeps/linux/x86/syscallnos.h | 433 +++++++++++++++++++++++++++ lib/mlibc/sysdeps/linux/x86/thread_entry.S | 61 ++++ 9 files changed, 711 insertions(+) create mode 100644 lib/mlibc/sysdeps/linux/x86/arch-syscall.cpp create mode 100644 lib/mlibc/sysdeps/linux/x86/cp_syscall.S create mode 100644 lib/mlibc/sysdeps/linux/x86/crt-src/Scrt1.S create mode 100644 lib/mlibc/sysdeps/linux/x86/crt-src/crt1.S create mode 100644 lib/mlibc/sysdeps/linux/x86/crt-src/crti.S create mode 100644 lib/mlibc/sysdeps/linux/x86/crt-src/crtn.S create mode 100644 lib/mlibc/sysdeps/linux/x86/signals.S create mode 100644 lib/mlibc/sysdeps/linux/x86/syscallnos.h create mode 100644 lib/mlibc/sysdeps/linux/x86/thread_entry.S (limited to 'lib/mlibc/sysdeps/linux/x86') diff --git a/lib/mlibc/sysdeps/linux/x86/arch-syscall.cpp b/lib/mlibc/sysdeps/linux/x86/arch-syscall.cpp new file mode 100644 index 0000000..35fc8aa --- /dev/null +++ b/lib/mlibc/sysdeps/linux/x86/arch-syscall.cpp @@ -0,0 +1,90 @@ +#include +#include + +using sc_word_t = __sc_word_t; + +// Note: ebx is used for PIC (it holds a reference to the GOT), so we can't clobber it with gcc apparently, +// and also need to make sure to restore it after a syscall + +sc_word_t __do_syscall0(long sc) { + sc_word_t ret; + asm volatile("int $0x80" : "=a"(ret) : "a"(sc) : "memory"); + return ret; +} + +sc_word_t __do_syscall1(long sc, sc_word_t arg1) { + sc_word_t ret; + asm volatile("xchg %%ebx, %%edi;" + "int $0x80;" + "xchg %%edi, %%ebx;" + : "=a"(ret) + : "a"(sc), "D"(arg1) + : "memory"); + return ret; +} + +sc_word_t __do_syscall2(long sc, sc_word_t arg1, sc_word_t arg2) { + sc_word_t ret; + asm volatile("xchg %%ebx, %%edi;" + "int $0x80;" + "xchg %%edi, %%ebx;" + : "=a"(ret) + : "a"(sc), "D"(arg1), "c"(arg2) + : "memory"); + return ret; +} + +sc_word_t __do_syscall3(long sc, sc_word_t arg1, sc_word_t arg2, sc_word_t arg3) { + sc_word_t ret; + asm volatile("xchg %%ebx, %%edi;" + "int $0x80;" + "xchg %%edi, %%ebx;" + : "=a"(ret) + : "a"(sc), "D"(arg1), "c"(arg2), "d"(arg3) + : "memory"); + return ret; +} + +sc_word_t __do_syscall4(long sc, sc_word_t arg1, sc_word_t arg2, sc_word_t arg3, sc_word_t arg4) { + sc_word_t ret; + asm volatile("xchg %%ebx, %%edi;" + "int $0x80;" + "xchg %%edi, %%ebx;" + : "=a"(ret) + : "a"(sc), "D"(arg1), "c"(arg2), "d"(arg3), "S"(arg4) + : "memory"); + return ret; +} + +sc_word_t __do_syscall5(long sc, sc_word_t arg1, sc_word_t arg2, sc_word_t arg3, sc_word_t arg4, + sc_word_t arg5) { + sc_word_t ret; + asm volatile("pushl %2;" + "push %%ebx;" + "mov 4(%%esp), %%ebx;" + "int $0x80;" + "pop %%ebx;" + "add $4, %%esp;" + : "=a"(ret) + : "a"(sc), "g"(arg1), "c"(arg2), "d"(arg3), "S"(arg4), "D"(arg5) + : "memory"); + return ret; +} + +sc_word_t __do_syscall6(long sc, sc_word_t arg1, sc_word_t arg2, sc_word_t arg3, sc_word_t arg4, + sc_word_t arg5, sc_word_t arg6) { + sc_word_t ret; + sc_word_t a1a6[2] = { arg1, arg6 }; + asm volatile ("pushl %1;" + "push %%ebx;" + "push %%ebp;" + "mov 8(%%esp),%%ebx;" + "mov 4(%%ebx),%%ebp;" + "mov (%%ebx),%%ebx;" + "int $0x80;" + "pop %%ebp;" + "pop %%ebx;" + "add $4,%%esp;" + : "=a"(ret) : "g"(&a1a6), "a"(sc), "c"(arg2), "d"(arg3), "S"(arg4), "D"(arg5) : "memory"); + return ret; +} diff --git a/lib/mlibc/sysdeps/linux/x86/cp_syscall.S b/lib/mlibc/sysdeps/linux/x86/cp_syscall.S new file mode 100644 index 0000000..b89e1f4 --- /dev/null +++ b/lib/mlibc/sysdeps/linux/x86/cp_syscall.S @@ -0,0 +1,42 @@ + +.section .text +.global __mlibc_do_asm_cp_syscall +.global __mlibc_syscall_begin +.global __mlibc_syscall_end +.type __mlibc_do_asm_cp_syscall, "function" +__mlibc_do_asm_cp_syscall: + push %ebx + push %esi + push %edi + push %ebp + ; mov 16(%esp), %eax + mov 24(%esp), %ebx + mov 28(%esp), %ecx + mov 32(%esp), %edx + mov 36(%esp), %esi + mov 40(%esp), %edi + mov 44(%esp), %ebp + mov %gs:0x18, %al +__mlibc_syscall_begin: + /* tcbCancelEnableBit && tcbCancelTriggerBit */ + and $((1 << 0) | (1 << 2)), %al + cmp $((1 << 0) | (1 << 2)), %al + je cancel + mov 20(%esp), %eax + int $0x80 +__mlibc_syscall_end: + pop %ebp + pop %edi + pop %esi + pop %ebx + ret + +cancel: + pop %ebp + pop %edi + pop %esi + pop %ebx + call __mlibc_do_cancel@PLT + hlt + +.section .note.GNU-stack,"",%progbits diff --git a/lib/mlibc/sysdeps/linux/x86/crt-src/Scrt1.S b/lib/mlibc/sysdeps/linux/x86/crt-src/Scrt1.S new file mode 100644 index 0000000..a62b127 --- /dev/null +++ b/lib/mlibc/sysdeps/linux/x86/crt-src/Scrt1.S @@ -0,0 +1,29 @@ +.section .text + +.type __stack_chk_fail_local, %function +.weak __stack_chk_fail_local +__stack_chk_fail_local: + call __stack_chk_fail@plt + +.global _start + +.type _start, %function +.type main, %function +.type __mlibc_entry, %function + +.cfi_startproc +_start: +.cfi_undefined eip + xor %ebp, %ebp + mov %esp, %edi + call 1f + +1: + pop %ebx + addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ebx + push main@GOT(%ebx) + push %edi + call __mlibc_entry@plt +.cfi_endproc + +.section .note.GNU-stack,"",%progbits diff --git a/lib/mlibc/sysdeps/linux/x86/crt-src/crt1.S b/lib/mlibc/sysdeps/linux/x86/crt-src/crt1.S new file mode 100644 index 0000000..ed45da3 --- /dev/null +++ b/lib/mlibc/sysdeps/linux/x86/crt-src/crt1.S @@ -0,0 +1,18 @@ +.section .text +.global _start + +.type _start, %function +.type main, %function +.type __mlibc_entry, %function + +.cfi_startproc +_start: +.cfi_undefined eip + xor %ebp, %ebp + mov %esp, %ecx + push $main + push %ecx + call __mlibc_entry +.cfi_endproc + +.section .note.GNU-stack,"",%progbits diff --git a/lib/mlibc/sysdeps/linux/x86/crt-src/crti.S b/lib/mlibc/sysdeps/linux/x86/crt-src/crti.S new file mode 100644 index 0000000..e232557 --- /dev/null +++ b/lib/mlibc/sysdeps/linux/x86/crt-src/crti.S @@ -0,0 +1,11 @@ +.section .init +.global _init +_init: + pushl %eax + +.section .fini +.global _fini +_fini: + pushl %eax + +.section .note.GNU-stack,"",%progbits diff --git a/lib/mlibc/sysdeps/linux/x86/crt-src/crtn.S b/lib/mlibc/sysdeps/linux/x86/crt-src/crtn.S new file mode 100644 index 0000000..d890289 --- /dev/null +++ b/lib/mlibc/sysdeps/linux/x86/crt-src/crtn.S @@ -0,0 +1,9 @@ +.section .init + popl %eax + ret + +.section .fini + popl %eax + ret + +.section .note.GNU-stack,"",%progbits diff --git a/lib/mlibc/sysdeps/linux/x86/signals.S b/lib/mlibc/sysdeps/linux/x86/signals.S new file mode 100644 index 0000000..8127ee4 --- /dev/null +++ b/lib/mlibc/sysdeps/linux/x86/signals.S @@ -0,0 +1,18 @@ +.section .text + +.global __mlibc_signal_restore +.type __mlibc_signal_restore, @function +__mlibc_signal_restore: + popl %eax + mov $119, %eax + int $0x80 + ud2 + +.global __mlibc_signal_restore_rt +.type __mlibc_signal_restore_rt, @function +__mlibc_signal_restore_rt: + mov $173, %eax + int $0x80 + ud2 + +.section .note.GNU-stack,"",%progbits diff --git a/lib/mlibc/sysdeps/linux/x86/syscallnos.h b/lib/mlibc/sysdeps/linux/x86/syscallnos.h new file mode 100644 index 0000000..f75eb0a --- /dev/null +++ b/lib/mlibc/sysdeps/linux/x86/syscallnos.h @@ -0,0 +1,433 @@ +#ifndef __MLIBC_SYSCALLNOS_h +#define __MLIBC_SYSCALLNOS_h +/* This file is autogenerated. Don't bother. */ +/* Generator script: sysdeps/linux/update-syscall-list.py. */ +#define __NR_restart_syscall 0 +#define __NR_exit 1 +#define __NR_fork 2 +#define __NR_read 3 +#define __NR_write 4 +#define __NR_open 5 +#define __NR_close 6 +#define __NR_waitpid 7 +#define __NR_creat 8 +#define __NR_link 9 +#define __NR_unlink 10 +#define __NR_execve 11 +#define __NR_chdir 12 +#define __NR_time 13 +#define __NR_mknod 14 +#define __NR_chmod 15 +#define __NR_lchown 16 +#define __NR_oldstat 18 +#define __NR_lseek 19 +#define __NR_getpid 20 +#define __NR_mount 21 +#define __NR_umount 22 +#define __NR_setuid 23 +#define __NR_getuid 24 +#define __NR_stime 25 +#define __NR_ptrace 26 +#define __NR_alarm 27 +#define __NR_oldfstat 28 +#define __NR_pause 29 +#define __NR_utime 30 +#define __NR_access 33 +#define __NR_nice 34 +#define __NR_sync 36 +#define __NR_kill 37 +#define __NR_rename 38 +#define __NR_mkdir 39 +#define __NR_rmdir 40 +#define __NR_dup 41 +#define __NR_pipe 42 +#define __NR_times 43 +#define __NR_brk 45 +#define __NR_setgid 46 +#define __NR_getgid 47 +#define __NR_signal 48 +#define __NR_geteuid 49 +#define __NR_getegid 50 +#define __NR_acct 51 +#define __NR_umount2 52 +#define __NR_ioctl 54 +#define __NR_fcntl 55 +#define __NR_setpgid 57 +#define __NR_oldolduname 59 +#define __NR_umask 60 +#define __NR_chroot 61 +#define __NR_ustat 62 +#define __NR_dup2 63 +#define __NR_getppid 64 +#define __NR_getpgrp 65 +#define __NR_setsid 66 +#define __NR_sigaction 67 +#define __NR_sgetmask 68 +#define __NR_ssetmask 69 +#define __NR_setreuid 70 +#define __NR_setregid 71 +#define __NR_sigsuspend 72 +#define __NR_sigpending 73 +#define __NR_sethostname 74 +#define __NR_setrlimit 75 +#define __NR_getrlimit 76 +#define __NR_getrusage 77 +#define __NR_gettimeofday 78 +#define __NR_settimeofday 79 +#define __NR_getgroups 80 +#define __NR_setgroups 81 +#define __NR_select 82 +#define __NR_symlink 83 +#define __NR_oldlstat 84 +#define __NR_readlink 85 +#define __NR_uselib 86 +#define __NR_swapon 87 +#define __NR_reboot 88 +#define __NR_readdir 89 +#define __NR_mmap 90 +#define __NR_munmap 91 +#define __NR_truncate 92 +#define __NR_ftruncate 93 +#define __NR_fchmod 94 +#define __NR_fchown 95 +#define __NR_getpriority 96 +#define __NR_setpriority 97 +#define __NR_statfs 99 +#define __NR_fstatfs 100 +#define __NR_ioperm 101 +#define __NR_socketcall 102 +#define __NR_syslog 103 +#define __NR_setitimer 104 +#define __NR_getitimer 105 +#define __NR_stat 106 +#define __NR_lstat 107 +#define __NR_fstat 108 +#define __NR_olduname 109 +#define __NR_iopl 110 +#define __NR_vhangup 111 +#define __NR_idle 112 +#define __NR_vm86old 113 +#define __NR_wait4 114 +#define __NR_swapoff 115 +#define __NR_sysinfo 116 +#define __NR_ipc 117 +#define __NR_fsync 118 +#define __NR_sigreturn 119 +#define __NR_clone 120 +#define __NR_setdomainname 121 +#define __NR_uname 122 +#define __NR_modify_ldt 123 +#define __NR_adjtimex 124 +#define __NR_mprotect 125 +#define __NR_sigprocmask 126 +#define __NR_create_module 127 +#define __NR_init_module 128 +#define __NR_delete_module 129 +#define __NR_get_kernel_syms 130 +#define __NR_quotactl 131 +#define __NR_getpgid 132 +#define __NR_fchdir 133 +#define __NR_bdflush 134 +#define __NR_sysfs 135 +#define __NR_personality 136 +#define __NR_setfsuid 138 +#define __NR_setfsgid 139 +#define __NR__llseek 140 +#define __NR_getdents 141 +#define __NR__newselect 142 +#define __NR_flock 143 +#define __NR_msync 144 +#define __NR_readv 145 +#define __NR_writev 146 +#define __NR_getsid 147 +#define __NR_fdatasync 148 +#define __NR__sysctl 149 +#define __NR_mlock 150 +#define __NR_munlock 151 +#define __NR_mlockall 152 +#define __NR_munlockall 153 +#define __NR_sched_setparam 154 +#define __NR_sched_getparam 155 +#define __NR_sched_setscheduler 156 +#define __NR_sched_getscheduler 157 +#define __NR_sched_yield 158 +#define __NR_sched_get_priority_max 159 +#define __NR_sched_get_priority_min 160 +#define __NR_sched_rr_get_interval 161 +#define __NR_nanosleep 162 +#define __NR_mremap 163 +#define __NR_setresuid 164 +#define __NR_getresuid 165 +#define __NR_vm86 166 +#define __NR_query_module 167 +#define __NR_poll 168 +#define __NR_nfsservctl 169 +#define __NR_setresgid 170 +#define __NR_getresgid 171 +#define __NR_prctl 172 +#define __NR_rt_sigreturn 173 +#define __NR_rt_sigaction 174 +#define __NR_rt_sigprocmask 175 +#define __NR_rt_sigpending 176 +#define __NR_rt_sigtimedwait 177 +#define __NR_rt_sigqueueinfo 178 +#define __NR_rt_sigsuspend 179 +#define __NR_pread64 180 +#define __NR_pwrite64 181 +#define __NR_chown 182 +#define __NR_getcwd 183 +#define __NR_capget 184 +#define __NR_capset 185 +#define __NR_sigaltstack 186 +#define __NR_sendfile 187 +#define __NR_getpmsg 188 +#define __NR_vfork 190 +#define __NR_ugetrlimit 191 +#define __NR_mmap2 192 +#define __NR_truncate64 193 +#define __NR_ftruncate64 194 +#define __NR_stat64 195 +#define __NR_lstat64 196 +#define __NR_fstat64 197 +#define __NR_lchown32 198 +#define __NR_getuid32 199 +#define __NR_getgid32 200 +#define __NR_geteuid32 201 +#define __NR_getegid32 202 +#define __NR_setreuid32 203 +#define __NR_setregid32 204 +#define __NR_getgroups32 205 +#define __NR_setgroups32 206 +#define __NR_fchown32 207 +#define __NR_setresuid32 208 +#define __NR_getresuid32 209 +#define __NR_setresgid32 210 +#define __NR_getresgid32 211 +#define __NR_chown32 212 +#define __NR_setuid32 213 +#define __NR_setgid32 214 +#define __NR_setfsuid32 215 +#define __NR_setfsgid32 216 +#define __NR_pivot_root 217 +#define __NR_mincore 218 +#define __NR_madvise 219 +#define __NR_getdents64 220 +#define __NR_fcntl64 221 +#define __NR_gettid 224 +#define __NR_readahead 225 +#define __NR_setxattr 226 +#define __NR_lsetxattr 227 +#define __NR_fsetxattr 228 +#define __NR_getxattr 229 +#define __NR_lgetxattr 230 +#define __NR_fgetxattr 231 +#define __NR_listxattr 232 +#define __NR_llistxattr 233 +#define __NR_flistxattr 234 +#define __NR_removexattr 235 +#define __NR_lremovexattr 236 +#define __NR_fremovexattr 237 +#define __NR_tkill 238 +#define __NR_sendfile64 239 +#define __NR_futex 240 +#define __NR_sched_setaffinity 241 +#define __NR_sched_getaffinity 242 +#define __NR_set_thread_area 243 +#define __NR_get_thread_area 244 +#define __NR_io_setup 245 +#define __NR_io_destroy 246 +#define __NR_io_getevents 247 +#define __NR_io_submit 248 +#define __NR_io_cancel 249 +#define __NR_fadvise64 250 +#define __NR_exit_group 252 +#define __NR_lookup_dcookie 253 +#define __NR_epoll_create 254 +#define __NR_epoll_ctl 255 +#define __NR_epoll_wait 256 +#define __NR_remap_file_pages 257 +#define __NR_set_tid_address 258 +#define __NR_timer_create 259 +#define __NR_timer_settime 260 +#define __NR_timer_gettime 261 +#define __NR_timer_getoverrun 262 +#define __NR_timer_delete 263 +#define __NR_clock_settime 264 +#define __NR_clock_gettime 265 +#define __NR_clock_getres 266 +#define __NR_clock_nanosleep 267 +#define __NR_statfs64 268 +#define __NR_fstatfs64 269 +#define __NR_tgkill 270 +#define __NR_utimes 271 +#define __NR_fadvise64_64 272 +#define __NR_mbind 274 +#define __NR_get_mempolicy 275 +#define __NR_set_mempolicy 276 +#define __NR_mq_open 277 +#define __NR_mq_unlink 278 +#define __NR_mq_timedsend 279 +#define __NR_mq_timedreceive 280 +#define __NR_mq_notify 281 +#define __NR_mq_getsetattr 282 +#define __NR_kexec_load 283 +#define __NR_waitid 284 +#define __NR_add_key 286 +#define __NR_request_key 287 +#define __NR_keyctl 288 +#define __NR_ioprio_set 289 +#define __NR_ioprio_get 290 +#define __NR_inotify_init 291 +#define __NR_inotify_add_watch 292 +#define __NR_inotify_rm_watch 293 +#define __NR_migrate_pages 294 +#define __NR_openat 295 +#define __NR_mkdirat 296 +#define __NR_mknodat 297 +#define __NR_fchownat 298 +#define __NR_futimesat 299 +#define __NR_fstatat64 300 +#define __NR_unlinkat 301 +#define __NR_renameat 302 +#define __NR_linkat 303 +#define __NR_symlinkat 304 +#define __NR_readlinkat 305 +#define __NR_fchmodat 306 +#define __NR_faccessat 307 +#define __NR_pselect6 308 +#define __NR_ppoll 309 +#define __NR_unshare 310 +#define __NR_set_robust_list 311 +#define __NR_get_robust_list 312 +#define __NR_splice 313 +#define __NR_sync_file_range 314 +#define __NR_tee 315 +#define __NR_vmsplice 316 +#define __NR_move_pages 317 +#define __NR_getcpu 318 +#define __NR_epoll_pwait 319 +#define __NR_utimensat 320 +#define __NR_signalfd 321 +#define __NR_timerfd_create 322 +#define __NR_eventfd 323 +#define __NR_fallocate 324 +#define __NR_timerfd_settime 325 +#define __NR_timerfd_gettime 326 +#define __NR_signalfd4 327 +#define __NR_eventfd2 328 +#define __NR_epoll_create1 329 +#define __NR_dup3 330 +#define __NR_pipe2 331 +#define __NR_inotify_init1 332 +#define __NR_preadv 333 +#define __NR_pwritev 334 +#define __NR_rt_tgsigqueueinfo 335 +#define __NR_perf_event_open 336 +#define __NR_recvmmsg 337 +#define __NR_fanotify_init 338 +#define __NR_fanotify_mark 339 +#define __NR_prlimit64 340 +#define __NR_name_to_handle_at 341 +#define __NR_open_by_handle_at 342 +#define __NR_clock_adjtime 343 +#define __NR_syncfs 344 +#define __NR_sendmmsg 345 +#define __NR_setns 346 +#define __NR_process_vm_readv 347 +#define __NR_process_vm_writev 348 +#define __NR_kcmp 349 +#define __NR_finit_module 350 +#define __NR_sched_setattr 351 +#define __NR_sched_getattr 352 +#define __NR_renameat2 353 +#define __NR_seccomp 354 +#define __NR_getrandom 355 +#define __NR_memfd_create 356 +#define __NR_bpf 357 +#define __NR_execveat 358 +#define __NR_socket 359 +#define __NR_socketpair 360 +#define __NR_bind 361 +#define __NR_connect 362 +#define __NR_listen 363 +#define __NR_accept4 364 +#define __NR_getsockopt 365 +#define __NR_setsockopt 366 +#define __NR_getsockname 367 +#define __NR_getpeername 368 +#define __NR_sendto 369 +#define __NR_sendmsg 370 +#define __NR_recvfrom 371 +#define __NR_recvmsg 372 +#define __NR_shutdown 373 +#define __NR_userfaultfd 374 +#define __NR_membarrier 375 +#define __NR_mlock2 376 +#define __NR_copy_file_range 377 +#define __NR_preadv2 378 +#define __NR_pwritev2 379 +#define __NR_pkey_mprotect 380 +#define __NR_pkey_alloc 381 +#define __NR_pkey_free 382 +#define __NR_statx 383 +#define __NR_arch_prctl 384 +#define __NR_io_pgetevents 385 +#define __NR_rseq 386 +#define __NR_semget 393 +#define __NR_semctl 394 +#define __NR_shmget 395 +#define __NR_shmctl 396 +#define __NR_shmat 397 +#define __NR_shmdt 398 +#define __NR_msgget 399 +#define __NR_msgsnd 400 +#define __NR_msgrcv 401 +#define __NR_msgctl 402 +#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_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_epoll_pwait2 441 +#define __NR_mount_setattr 442 +#define __NR_quotactl_fd 443 +#define __NR_landlock_create_ruleset 444 +#define __NR_landlock_add_rule 445 +#define __NR_landlock_restrict_self 446 +#define __NR_memfd_secret 447 +#define __NR_process_mrelease 448 +#define __NR_futex_waitv 449 +#define __NR_set_mempolicy_home_node 450 +#endif /* __MLIBC_SYSCALLNOS_h */ diff --git a/lib/mlibc/sysdeps/linux/x86/thread_entry.S b/lib/mlibc/sysdeps/linux/x86/thread_entry.S new file mode 100644 index 0000000..031a6aa --- /dev/null +++ b/lib/mlibc/sysdeps/linux/x86/thread_entry.S @@ -0,0 +1,61 @@ +#define FLAGS 4 +#define STACK FLAGS+4 +#define PTID STACK+4 +#define CTID PTID+4 +#define TLS CTID+4 + +.section .text +.global __mlibc_spawn_thread +.type __mlibc_spawn_thread, "function" +.cfi_startproc +__mlibc_spawn_thread: + push %ebx + .cfi_adjust_cfa_offset 4 + .cfi_rel_offset ebx, 0 + push %esi + .cfi_adjust_cfa_offset 4 + .cfi_rel_offset esi, 0 + push %edi + .cfi_adjust_cfa_offset 4 + .cfi_rel_offset edi, 0 + + xor %eax, %eax + mov 12+FLAGS(%esp), %ebx + mov 12+STACK(%esp), %ecx + mov 12+PTID(%esp), %edx + /* On x86-32 tls and child_tid have to be reversed */ + mov 12+TLS(%esp), %esi + mov 12+CTID(%esp), %edi + mov $120, %al + + int $0x80 + + test %eax, %eax + jnz .parent_exit + + xor %ebp, %ebp + .cfi_undefined %eip + .cfi_undefined %ebp + + call 1f +1: + pop %ebx + addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %ebx + + call __mlibc_enter_thread@plt + hlt + +.parent_exit: + pop %edi + .cfi_adjust_cfa_offset -4 + .cfi_restore edi + pop %esi + .cfi_adjust_cfa_offset -4 + .cfi_restore esi + pop %ebx + .cfi_adjust_cfa_offset -4 + .cfi_restore ebx + ret +.cfi_endproc + +.section .note.GNU-stack,"",%progbits -- cgit v1.2.3