1bd8c8fbbSWilly Tarreau /* SPDX-License-Identifier: LGPL-2.1 OR MIT */ 2bd8c8fbbSWilly Tarreau /* 3bd8c8fbbSWilly Tarreau * Syscall definitions for NOLIBC (those in man(2)) 4bd8c8fbbSWilly Tarreau * Copyright (C) 2017-2021 Willy Tarreau <w@1wt.eu> 5bd8c8fbbSWilly Tarreau */ 6bd8c8fbbSWilly Tarreau 7bd8c8fbbSWilly Tarreau #ifndef _NOLIBC_SYS_H 8bd8c8fbbSWilly Tarreau #define _NOLIBC_SYS_H 9bd8c8fbbSWilly Tarreau 10a7604ba1SWilly Tarreau #include <stdarg.h> 11bd8c8fbbSWilly Tarreau #include "std.h" 12bd8c8fbbSWilly Tarreau 13bd8c8fbbSWilly Tarreau /* system includes */ 14bd8c8fbbSWilly Tarreau #include <asm/unistd.h> 15fddc8f81SThomas Weißschuh #include <asm/signal.h> /* for SIGCHLD */ 16bd8c8fbbSWilly Tarreau #include <asm/ioctls.h> 17544fa1a2SAmmar Faizi #include <asm/mman.h> 18bd8c8fbbSWilly Tarreau #include <linux/fs.h> 19bd8c8fbbSWilly Tarreau #include <linux/loop.h> 20bd8c8fbbSWilly Tarreau #include <linux/time.h> 217efd762eSAmmar Faizi #include <linux/auxvec.h> 22fddc8f81SThomas Weißschuh #include <linux/fcntl.h> /* for O_* and AT_* */ 23fddc8f81SThomas Weißschuh #include <linux/stat.h> /* for statx() */ 24bd8c8fbbSWilly Tarreau 25bd8c8fbbSWilly Tarreau #include "arch.h" 2645a794bfSWilly Tarreau #include "errno.h" 27bd8c8fbbSWilly Tarreau #include "types.h" 28bd8c8fbbSWilly Tarreau 29bd8c8fbbSWilly Tarreau 30bd8c8fbbSWilly Tarreau /* Functions in this file only describe syscalls. They're declared static so 31bd8c8fbbSWilly Tarreau * that the compiler usually decides to inline them while still being allowed 32bd8c8fbbSWilly Tarreau * to pass a pointer to one of their instances. Each syscall exists in two 33bd8c8fbbSWilly Tarreau * versions: 34bd8c8fbbSWilly Tarreau * - the "internal" ones, which matches the raw syscall interface at the 35bd8c8fbbSWilly Tarreau * kernel level, which may sometimes slightly differ from the documented 36bd8c8fbbSWilly Tarreau * libc-level ones. For example most of them return either a valid value 37bd8c8fbbSWilly Tarreau * or -errno. All of these are prefixed with "sys_". They may be called 38bd8c8fbbSWilly Tarreau * by non-portable applications if desired. 39bd8c8fbbSWilly Tarreau * 40bd8c8fbbSWilly Tarreau * - the "exported" ones, whose interface must closely match the one 41bd8c8fbbSWilly Tarreau * documented in man(2), that applications are supposed to expect. These 42bd8c8fbbSWilly Tarreau * ones rely on the internal ones, and set errno. 43bd8c8fbbSWilly Tarreau * 44bd8c8fbbSWilly Tarreau * Each syscall will be defined with the two functions, sorted in alphabetical 45bd8c8fbbSWilly Tarreau * order applied to the exported names. 46bd8c8fbbSWilly Tarreau * 47bd8c8fbbSWilly Tarreau * In case of doubt about the relevance of a function here, only those which 48bd8c8fbbSWilly Tarreau * set errno should be defined here. Wrappers like those appearing in man(3) 49bd8c8fbbSWilly Tarreau * should not be placed here. 50bd8c8fbbSWilly Tarreau */ 51bd8c8fbbSWilly Tarreau 52bd8c8fbbSWilly Tarreau 53bd8c8fbbSWilly Tarreau /* 54bd8c8fbbSWilly Tarreau * int brk(void *addr); 55bd8c8fbbSWilly Tarreau * void *sbrk(intptr_t inc) 56bd8c8fbbSWilly Tarreau */ 57bd8c8fbbSWilly Tarreau 58bd8c8fbbSWilly Tarreau static __attribute__((unused)) 59bd8c8fbbSWilly Tarreau void *sys_brk(void *addr) 60bd8c8fbbSWilly Tarreau { 61bd8c8fbbSWilly Tarreau return (void *)my_syscall1(__NR_brk, addr); 62bd8c8fbbSWilly Tarreau } 63bd8c8fbbSWilly Tarreau 64bd8c8fbbSWilly Tarreau static __attribute__((unused)) 65bd8c8fbbSWilly Tarreau int brk(void *addr) 66bd8c8fbbSWilly Tarreau { 67bd8c8fbbSWilly Tarreau void *ret = sys_brk(addr); 68bd8c8fbbSWilly Tarreau 69bd8c8fbbSWilly Tarreau if (!ret) { 70bd8c8fbbSWilly Tarreau SET_ERRNO(ENOMEM); 71bd8c8fbbSWilly Tarreau return -1; 72bd8c8fbbSWilly Tarreau } 73bd8c8fbbSWilly Tarreau return 0; 74bd8c8fbbSWilly Tarreau } 75bd8c8fbbSWilly Tarreau 76bd8c8fbbSWilly Tarreau static __attribute__((unused)) 77bd8c8fbbSWilly Tarreau void *sbrk(intptr_t inc) 78bd8c8fbbSWilly Tarreau { 79bd8c8fbbSWilly Tarreau void *ret; 80bd8c8fbbSWilly Tarreau 81bd8c8fbbSWilly Tarreau /* first call to find current end */ 82bd8c8fbbSWilly Tarreau if ((ret = sys_brk(0)) && (sys_brk(ret + inc) == ret + inc)) 83bd8c8fbbSWilly Tarreau return ret + inc; 84bd8c8fbbSWilly Tarreau 85bd8c8fbbSWilly Tarreau SET_ERRNO(ENOMEM); 86bd8c8fbbSWilly Tarreau return (void *)-1; 87bd8c8fbbSWilly Tarreau } 88bd8c8fbbSWilly Tarreau 89bd8c8fbbSWilly Tarreau 90bd8c8fbbSWilly Tarreau /* 91bd8c8fbbSWilly Tarreau * int chdir(const char *path); 92bd8c8fbbSWilly Tarreau */ 93bd8c8fbbSWilly Tarreau 94bd8c8fbbSWilly Tarreau static __attribute__((unused)) 95bd8c8fbbSWilly Tarreau int sys_chdir(const char *path) 96bd8c8fbbSWilly Tarreau { 97bd8c8fbbSWilly Tarreau return my_syscall1(__NR_chdir, path); 98bd8c8fbbSWilly Tarreau } 99bd8c8fbbSWilly Tarreau 100bd8c8fbbSWilly Tarreau static __attribute__((unused)) 101bd8c8fbbSWilly Tarreau int chdir(const char *path) 102bd8c8fbbSWilly Tarreau { 103bd8c8fbbSWilly Tarreau int ret = sys_chdir(path); 104bd8c8fbbSWilly Tarreau 105bd8c8fbbSWilly Tarreau if (ret < 0) { 106bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 107bd8c8fbbSWilly Tarreau ret = -1; 108bd8c8fbbSWilly Tarreau } 109bd8c8fbbSWilly Tarreau return ret; 110bd8c8fbbSWilly Tarreau } 111bd8c8fbbSWilly Tarreau 112bd8c8fbbSWilly Tarreau 113bd8c8fbbSWilly Tarreau /* 114bd8c8fbbSWilly Tarreau * int chmod(const char *path, mode_t mode); 115bd8c8fbbSWilly Tarreau */ 116bd8c8fbbSWilly Tarreau 117bd8c8fbbSWilly Tarreau static __attribute__((unused)) 118bd8c8fbbSWilly Tarreau int sys_chmod(const char *path, mode_t mode) 119bd8c8fbbSWilly Tarreau { 120bd8c8fbbSWilly Tarreau #ifdef __NR_fchmodat 121bd8c8fbbSWilly Tarreau return my_syscall4(__NR_fchmodat, AT_FDCWD, path, mode, 0); 122bd8c8fbbSWilly Tarreau #elif defined(__NR_chmod) 123bd8c8fbbSWilly Tarreau return my_syscall2(__NR_chmod, path, mode); 124bd8c8fbbSWilly Tarreau #else 125bd8c8fbbSWilly Tarreau #error Neither __NR_fchmodat nor __NR_chmod defined, cannot implement sys_chmod() 126bd8c8fbbSWilly Tarreau #endif 127bd8c8fbbSWilly Tarreau } 128bd8c8fbbSWilly Tarreau 129bd8c8fbbSWilly Tarreau static __attribute__((unused)) 130bd8c8fbbSWilly Tarreau int chmod(const char *path, mode_t mode) 131bd8c8fbbSWilly Tarreau { 132bd8c8fbbSWilly Tarreau int ret = sys_chmod(path, mode); 133bd8c8fbbSWilly Tarreau 134bd8c8fbbSWilly Tarreau if (ret < 0) { 135bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 136bd8c8fbbSWilly Tarreau ret = -1; 137bd8c8fbbSWilly Tarreau } 138bd8c8fbbSWilly Tarreau return ret; 139bd8c8fbbSWilly Tarreau } 140bd8c8fbbSWilly Tarreau 141bd8c8fbbSWilly Tarreau 142bd8c8fbbSWilly Tarreau /* 143bd8c8fbbSWilly Tarreau * int chown(const char *path, uid_t owner, gid_t group); 144bd8c8fbbSWilly Tarreau */ 145bd8c8fbbSWilly Tarreau 146bd8c8fbbSWilly Tarreau static __attribute__((unused)) 147bd8c8fbbSWilly Tarreau int sys_chown(const char *path, uid_t owner, gid_t group) 148bd8c8fbbSWilly Tarreau { 149bd8c8fbbSWilly Tarreau #ifdef __NR_fchownat 150bd8c8fbbSWilly Tarreau return my_syscall5(__NR_fchownat, AT_FDCWD, path, owner, group, 0); 151bd8c8fbbSWilly Tarreau #elif defined(__NR_chown) 152bd8c8fbbSWilly Tarreau return my_syscall3(__NR_chown, path, owner, group); 153bd8c8fbbSWilly Tarreau #else 154bd8c8fbbSWilly Tarreau #error Neither __NR_fchownat nor __NR_chown defined, cannot implement sys_chown() 155bd8c8fbbSWilly Tarreau #endif 156bd8c8fbbSWilly Tarreau } 157bd8c8fbbSWilly Tarreau 158bd8c8fbbSWilly Tarreau static __attribute__((unused)) 159bd8c8fbbSWilly Tarreau int chown(const char *path, uid_t owner, gid_t group) 160bd8c8fbbSWilly Tarreau { 161bd8c8fbbSWilly Tarreau int ret = sys_chown(path, owner, group); 162bd8c8fbbSWilly Tarreau 163bd8c8fbbSWilly Tarreau if (ret < 0) { 164bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 165bd8c8fbbSWilly Tarreau ret = -1; 166bd8c8fbbSWilly Tarreau } 167bd8c8fbbSWilly Tarreau return ret; 168bd8c8fbbSWilly Tarreau } 169bd8c8fbbSWilly Tarreau 170bd8c8fbbSWilly Tarreau 171bd8c8fbbSWilly Tarreau /* 172bd8c8fbbSWilly Tarreau * int chroot(const char *path); 173bd8c8fbbSWilly Tarreau */ 174bd8c8fbbSWilly Tarreau 175bd8c8fbbSWilly Tarreau static __attribute__((unused)) 176bd8c8fbbSWilly Tarreau int sys_chroot(const char *path) 177bd8c8fbbSWilly Tarreau { 178bd8c8fbbSWilly Tarreau return my_syscall1(__NR_chroot, path); 179bd8c8fbbSWilly Tarreau } 180bd8c8fbbSWilly Tarreau 181bd8c8fbbSWilly Tarreau static __attribute__((unused)) 182bd8c8fbbSWilly Tarreau int chroot(const char *path) 183bd8c8fbbSWilly Tarreau { 184bd8c8fbbSWilly Tarreau int ret = sys_chroot(path); 185bd8c8fbbSWilly Tarreau 186bd8c8fbbSWilly Tarreau if (ret < 0) { 187bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 188bd8c8fbbSWilly Tarreau ret = -1; 189bd8c8fbbSWilly Tarreau } 190bd8c8fbbSWilly Tarreau return ret; 191bd8c8fbbSWilly Tarreau } 192bd8c8fbbSWilly Tarreau 193bd8c8fbbSWilly Tarreau 194bd8c8fbbSWilly Tarreau /* 195bd8c8fbbSWilly Tarreau * int close(int fd); 196bd8c8fbbSWilly Tarreau */ 197bd8c8fbbSWilly Tarreau 198bd8c8fbbSWilly Tarreau static __attribute__((unused)) 199bd8c8fbbSWilly Tarreau int sys_close(int fd) 200bd8c8fbbSWilly Tarreau { 201bd8c8fbbSWilly Tarreau return my_syscall1(__NR_close, fd); 202bd8c8fbbSWilly Tarreau } 203bd8c8fbbSWilly Tarreau 204bd8c8fbbSWilly Tarreau static __attribute__((unused)) 205bd8c8fbbSWilly Tarreau int close(int fd) 206bd8c8fbbSWilly Tarreau { 207bd8c8fbbSWilly Tarreau int ret = sys_close(fd); 208bd8c8fbbSWilly Tarreau 209bd8c8fbbSWilly Tarreau if (ret < 0) { 210bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 211bd8c8fbbSWilly Tarreau ret = -1; 212bd8c8fbbSWilly Tarreau } 213bd8c8fbbSWilly Tarreau return ret; 214bd8c8fbbSWilly Tarreau } 215bd8c8fbbSWilly Tarreau 216bd8c8fbbSWilly Tarreau 217bd8c8fbbSWilly Tarreau /* 218bd8c8fbbSWilly Tarreau * int dup(int fd); 219bd8c8fbbSWilly Tarreau */ 220bd8c8fbbSWilly Tarreau 221bd8c8fbbSWilly Tarreau static __attribute__((unused)) 222bd8c8fbbSWilly Tarreau int sys_dup(int fd) 223bd8c8fbbSWilly Tarreau { 224bd8c8fbbSWilly Tarreau return my_syscall1(__NR_dup, fd); 225bd8c8fbbSWilly Tarreau } 226bd8c8fbbSWilly Tarreau 227bd8c8fbbSWilly Tarreau static __attribute__((unused)) 228bd8c8fbbSWilly Tarreau int dup(int fd) 229bd8c8fbbSWilly Tarreau { 230bd8c8fbbSWilly Tarreau int ret = sys_dup(fd); 231bd8c8fbbSWilly Tarreau 232bd8c8fbbSWilly Tarreau if (ret < 0) { 233bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 234bd8c8fbbSWilly Tarreau ret = -1; 235bd8c8fbbSWilly Tarreau } 236bd8c8fbbSWilly Tarreau return ret; 237bd8c8fbbSWilly Tarreau } 238bd8c8fbbSWilly Tarreau 239bd8c8fbbSWilly Tarreau 240bd8c8fbbSWilly Tarreau /* 241bd8c8fbbSWilly Tarreau * int dup2(int old, int new); 242bd8c8fbbSWilly Tarreau */ 243bd8c8fbbSWilly Tarreau 244bd8c8fbbSWilly Tarreau static __attribute__((unused)) 245bd8c8fbbSWilly Tarreau int sys_dup2(int old, int new) 246bd8c8fbbSWilly Tarreau { 247bd8c8fbbSWilly Tarreau #ifdef __NR_dup3 248bd8c8fbbSWilly Tarreau return my_syscall3(__NR_dup3, old, new, 0); 249bd8c8fbbSWilly Tarreau #elif defined(__NR_dup2) 250bd8c8fbbSWilly Tarreau return my_syscall2(__NR_dup2, old, new); 251bd8c8fbbSWilly Tarreau #else 252bd8c8fbbSWilly Tarreau #error Neither __NR_dup3 nor __NR_dup2 defined, cannot implement sys_dup2() 253bd8c8fbbSWilly Tarreau #endif 254bd8c8fbbSWilly Tarreau } 255bd8c8fbbSWilly Tarreau 256bd8c8fbbSWilly Tarreau static __attribute__((unused)) 257bd8c8fbbSWilly Tarreau int dup2(int old, int new) 258bd8c8fbbSWilly Tarreau { 259bd8c8fbbSWilly Tarreau int ret = sys_dup2(old, new); 260bd8c8fbbSWilly Tarreau 261bd8c8fbbSWilly Tarreau if (ret < 0) { 262bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 263bd8c8fbbSWilly Tarreau ret = -1; 264bd8c8fbbSWilly Tarreau } 265bd8c8fbbSWilly Tarreau return ret; 266bd8c8fbbSWilly Tarreau } 267bd8c8fbbSWilly Tarreau 268bd8c8fbbSWilly Tarreau 269bd8c8fbbSWilly Tarreau /* 270bd8c8fbbSWilly Tarreau * int dup3(int old, int new, int flags); 271bd8c8fbbSWilly Tarreau */ 272bd8c8fbbSWilly Tarreau 273bd8c8fbbSWilly Tarreau #ifdef __NR_dup3 274bd8c8fbbSWilly Tarreau static __attribute__((unused)) 275bd8c8fbbSWilly Tarreau int sys_dup3(int old, int new, int flags) 276bd8c8fbbSWilly Tarreau { 277bd8c8fbbSWilly Tarreau return my_syscall3(__NR_dup3, old, new, flags); 278bd8c8fbbSWilly Tarreau } 279bd8c8fbbSWilly Tarreau 280bd8c8fbbSWilly Tarreau static __attribute__((unused)) 281bd8c8fbbSWilly Tarreau int dup3(int old, int new, int flags) 282bd8c8fbbSWilly Tarreau { 283bd8c8fbbSWilly Tarreau int ret = sys_dup3(old, new, flags); 284bd8c8fbbSWilly Tarreau 285bd8c8fbbSWilly Tarreau if (ret < 0) { 286bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 287bd8c8fbbSWilly Tarreau ret = -1; 288bd8c8fbbSWilly Tarreau } 289bd8c8fbbSWilly Tarreau return ret; 290bd8c8fbbSWilly Tarreau } 291bd8c8fbbSWilly Tarreau #endif 292bd8c8fbbSWilly Tarreau 293bd8c8fbbSWilly Tarreau 294bd8c8fbbSWilly Tarreau /* 295bd8c8fbbSWilly Tarreau * int execve(const char *filename, char *const argv[], char *const envp[]); 296bd8c8fbbSWilly Tarreau */ 297bd8c8fbbSWilly Tarreau 298bd8c8fbbSWilly Tarreau static __attribute__((unused)) 299bd8c8fbbSWilly Tarreau int sys_execve(const char *filename, char *const argv[], char *const envp[]) 300bd8c8fbbSWilly Tarreau { 301bd8c8fbbSWilly Tarreau return my_syscall3(__NR_execve, filename, argv, envp); 302bd8c8fbbSWilly Tarreau } 303bd8c8fbbSWilly Tarreau 304bd8c8fbbSWilly Tarreau static __attribute__((unused)) 305bd8c8fbbSWilly Tarreau int execve(const char *filename, char *const argv[], char *const envp[]) 306bd8c8fbbSWilly Tarreau { 307bd8c8fbbSWilly Tarreau int ret = sys_execve(filename, argv, envp); 308bd8c8fbbSWilly Tarreau 309bd8c8fbbSWilly Tarreau if (ret < 0) { 310bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 311bd8c8fbbSWilly Tarreau ret = -1; 312bd8c8fbbSWilly Tarreau } 313bd8c8fbbSWilly Tarreau return ret; 314bd8c8fbbSWilly Tarreau } 315bd8c8fbbSWilly Tarreau 316bd8c8fbbSWilly Tarreau 317bd8c8fbbSWilly Tarreau /* 318bd8c8fbbSWilly Tarreau * void exit(int status); 319bd8c8fbbSWilly Tarreau */ 320bd8c8fbbSWilly Tarreau 321bd8c8fbbSWilly Tarreau static __attribute__((noreturn,unused)) 322bd8c8fbbSWilly Tarreau void sys_exit(int status) 323bd8c8fbbSWilly Tarreau { 324bd8c8fbbSWilly Tarreau my_syscall1(__NR_exit, status & 255); 325fddc8f81SThomas Weißschuh while(1); /* shut the "noreturn" warnings. */ 326bd8c8fbbSWilly Tarreau } 327bd8c8fbbSWilly Tarreau 328bd8c8fbbSWilly Tarreau static __attribute__((noreturn,unused)) 329bd8c8fbbSWilly Tarreau void exit(int status) 330bd8c8fbbSWilly Tarreau { 331bd8c8fbbSWilly Tarreau sys_exit(status); 332bd8c8fbbSWilly Tarreau } 333bd8c8fbbSWilly Tarreau 334bd8c8fbbSWilly Tarreau 335bd8c8fbbSWilly Tarreau /* 336bd8c8fbbSWilly Tarreau * pid_t fork(void); 337bd8c8fbbSWilly Tarreau */ 338bd8c8fbbSWilly Tarreau 339*404fa87cSThomas Weißschuh #ifndef sys_fork 340bd8c8fbbSWilly Tarreau static __attribute__((unused)) 341bd8c8fbbSWilly Tarreau pid_t sys_fork(void) 342bd8c8fbbSWilly Tarreau { 343bd8c8fbbSWilly Tarreau #ifdef __NR_clone 344bd8c8fbbSWilly Tarreau /* note: some archs only have clone() and not fork(). Different archs 345bd8c8fbbSWilly Tarreau * have a different API, but most archs have the flags on first arg and 346bd8c8fbbSWilly Tarreau * will not use the rest with no other flag. 347bd8c8fbbSWilly Tarreau */ 348bd8c8fbbSWilly Tarreau return my_syscall5(__NR_clone, SIGCHLD, 0, 0, 0, 0); 349bd8c8fbbSWilly Tarreau #elif defined(__NR_fork) 350bd8c8fbbSWilly Tarreau return my_syscall0(__NR_fork); 351bd8c8fbbSWilly Tarreau #else 352bd8c8fbbSWilly Tarreau #error Neither __NR_clone nor __NR_fork defined, cannot implement sys_fork() 353bd8c8fbbSWilly Tarreau #endif 354bd8c8fbbSWilly Tarreau } 355*404fa87cSThomas Weißschuh #endif 356bd8c8fbbSWilly Tarreau 357bd8c8fbbSWilly Tarreau static __attribute__((unused)) 358bd8c8fbbSWilly Tarreau pid_t fork(void) 359bd8c8fbbSWilly Tarreau { 360bd8c8fbbSWilly Tarreau pid_t ret = sys_fork(); 361bd8c8fbbSWilly Tarreau 362bd8c8fbbSWilly Tarreau if (ret < 0) { 363bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 364bd8c8fbbSWilly Tarreau ret = -1; 365bd8c8fbbSWilly Tarreau } 366bd8c8fbbSWilly Tarreau return ret; 367bd8c8fbbSWilly Tarreau } 368bd8c8fbbSWilly Tarreau 369bd8c8fbbSWilly Tarreau 370bd8c8fbbSWilly Tarreau /* 371bd8c8fbbSWilly Tarreau * int fsync(int fd); 372bd8c8fbbSWilly Tarreau */ 373bd8c8fbbSWilly Tarreau 374bd8c8fbbSWilly Tarreau static __attribute__((unused)) 375bd8c8fbbSWilly Tarreau int sys_fsync(int fd) 376bd8c8fbbSWilly Tarreau { 377bd8c8fbbSWilly Tarreau return my_syscall1(__NR_fsync, fd); 378bd8c8fbbSWilly Tarreau } 379bd8c8fbbSWilly Tarreau 380bd8c8fbbSWilly Tarreau static __attribute__((unused)) 381bd8c8fbbSWilly Tarreau int fsync(int fd) 382bd8c8fbbSWilly Tarreau { 383bd8c8fbbSWilly Tarreau int ret = sys_fsync(fd); 384bd8c8fbbSWilly Tarreau 385bd8c8fbbSWilly Tarreau if (ret < 0) { 386bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 387bd8c8fbbSWilly Tarreau ret = -1; 388bd8c8fbbSWilly Tarreau } 389bd8c8fbbSWilly Tarreau return ret; 390bd8c8fbbSWilly Tarreau } 391bd8c8fbbSWilly Tarreau 392bd8c8fbbSWilly Tarreau 393bd8c8fbbSWilly Tarreau /* 394bd8c8fbbSWilly Tarreau * int getdents64(int fd, struct linux_dirent64 *dirp, int count); 395bd8c8fbbSWilly Tarreau */ 396bd8c8fbbSWilly Tarreau 397bd8c8fbbSWilly Tarreau static __attribute__((unused)) 398bd8c8fbbSWilly Tarreau int sys_getdents64(int fd, struct linux_dirent64 *dirp, int count) 399bd8c8fbbSWilly Tarreau { 400bd8c8fbbSWilly Tarreau return my_syscall3(__NR_getdents64, fd, dirp, count); 401bd8c8fbbSWilly Tarreau } 402bd8c8fbbSWilly Tarreau 403bd8c8fbbSWilly Tarreau static __attribute__((unused)) 404bd8c8fbbSWilly Tarreau int getdents64(int fd, struct linux_dirent64 *dirp, int count) 405bd8c8fbbSWilly Tarreau { 406bd8c8fbbSWilly Tarreau int ret = sys_getdents64(fd, dirp, count); 407bd8c8fbbSWilly Tarreau 408bd8c8fbbSWilly Tarreau if (ret < 0) { 409bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 410bd8c8fbbSWilly Tarreau ret = -1; 411bd8c8fbbSWilly Tarreau } 412bd8c8fbbSWilly Tarreau return ret; 413bd8c8fbbSWilly Tarreau } 414bd8c8fbbSWilly Tarreau 415bd8c8fbbSWilly Tarreau 416bd8c8fbbSWilly Tarreau /* 417919d0532SWilly Tarreau * uid_t geteuid(void); 418919d0532SWilly Tarreau */ 419919d0532SWilly Tarreau 420919d0532SWilly Tarreau static __attribute__((unused)) 421919d0532SWilly Tarreau uid_t sys_geteuid(void) 422919d0532SWilly Tarreau { 423919d0532SWilly Tarreau #ifdef __NR_geteuid32 424919d0532SWilly Tarreau return my_syscall0(__NR_geteuid32); 425919d0532SWilly Tarreau #else 426919d0532SWilly Tarreau return my_syscall0(__NR_geteuid); 427919d0532SWilly Tarreau #endif 428919d0532SWilly Tarreau } 429919d0532SWilly Tarreau 430919d0532SWilly Tarreau static __attribute__((unused)) 431919d0532SWilly Tarreau uid_t geteuid(void) 432919d0532SWilly Tarreau { 433919d0532SWilly Tarreau return sys_geteuid(); 434919d0532SWilly Tarreau } 435919d0532SWilly Tarreau 436919d0532SWilly Tarreau 437919d0532SWilly Tarreau /* 438bd8c8fbbSWilly Tarreau * pid_t getpgid(pid_t pid); 439bd8c8fbbSWilly Tarreau */ 440bd8c8fbbSWilly Tarreau 441bd8c8fbbSWilly Tarreau static __attribute__((unused)) 442bd8c8fbbSWilly Tarreau pid_t sys_getpgid(pid_t pid) 443bd8c8fbbSWilly Tarreau { 444bd8c8fbbSWilly Tarreau return my_syscall1(__NR_getpgid, pid); 445bd8c8fbbSWilly Tarreau } 446bd8c8fbbSWilly Tarreau 447bd8c8fbbSWilly Tarreau static __attribute__((unused)) 448bd8c8fbbSWilly Tarreau pid_t getpgid(pid_t pid) 449bd8c8fbbSWilly Tarreau { 450bd8c8fbbSWilly Tarreau pid_t ret = sys_getpgid(pid); 451bd8c8fbbSWilly Tarreau 452bd8c8fbbSWilly Tarreau if (ret < 0) { 453bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 454bd8c8fbbSWilly Tarreau ret = -1; 455bd8c8fbbSWilly Tarreau } 456bd8c8fbbSWilly Tarreau return ret; 457bd8c8fbbSWilly Tarreau } 458bd8c8fbbSWilly Tarreau 459bd8c8fbbSWilly Tarreau 460bd8c8fbbSWilly Tarreau /* 461bd8c8fbbSWilly Tarreau * pid_t getpgrp(void); 462bd8c8fbbSWilly Tarreau */ 463bd8c8fbbSWilly Tarreau 464bd8c8fbbSWilly Tarreau static __attribute__((unused)) 465bd8c8fbbSWilly Tarreau pid_t sys_getpgrp(void) 466bd8c8fbbSWilly Tarreau { 467bd8c8fbbSWilly Tarreau return sys_getpgid(0); 468bd8c8fbbSWilly Tarreau } 469bd8c8fbbSWilly Tarreau 470bd8c8fbbSWilly Tarreau static __attribute__((unused)) 471bd8c8fbbSWilly Tarreau pid_t getpgrp(void) 472bd8c8fbbSWilly Tarreau { 473830acd08SWilly Tarreau return sys_getpgrp(); 474bd8c8fbbSWilly Tarreau } 475bd8c8fbbSWilly Tarreau 476bd8c8fbbSWilly Tarreau 477bd8c8fbbSWilly Tarreau /* 478bd8c8fbbSWilly Tarreau * pid_t getpid(void); 479bd8c8fbbSWilly Tarreau */ 480bd8c8fbbSWilly Tarreau 481bd8c8fbbSWilly Tarreau static __attribute__((unused)) 482bd8c8fbbSWilly Tarreau pid_t sys_getpid(void) 483bd8c8fbbSWilly Tarreau { 484bd8c8fbbSWilly Tarreau return my_syscall0(__NR_getpid); 485bd8c8fbbSWilly Tarreau } 486bd8c8fbbSWilly Tarreau 487bd8c8fbbSWilly Tarreau static __attribute__((unused)) 488bd8c8fbbSWilly Tarreau pid_t getpid(void) 489bd8c8fbbSWilly Tarreau { 490830acd08SWilly Tarreau return sys_getpid(); 491bd8c8fbbSWilly Tarreau } 492bd8c8fbbSWilly Tarreau 493bd8c8fbbSWilly Tarreau 494bd8c8fbbSWilly Tarreau /* 49554abe359SWilly Tarreau * pid_t getppid(void); 49654abe359SWilly Tarreau */ 49754abe359SWilly Tarreau 49854abe359SWilly Tarreau static __attribute__((unused)) 49954abe359SWilly Tarreau pid_t sys_getppid(void) 50054abe359SWilly Tarreau { 50154abe359SWilly Tarreau return my_syscall0(__NR_getppid); 50254abe359SWilly Tarreau } 50354abe359SWilly Tarreau 50454abe359SWilly Tarreau static __attribute__((unused)) 50554abe359SWilly Tarreau pid_t getppid(void) 50654abe359SWilly Tarreau { 50754abe359SWilly Tarreau return sys_getppid(); 50854abe359SWilly Tarreau } 50954abe359SWilly Tarreau 51054abe359SWilly Tarreau 51154abe359SWilly Tarreau /* 512bd8c8fbbSWilly Tarreau * pid_t gettid(void); 513bd8c8fbbSWilly Tarreau */ 514bd8c8fbbSWilly Tarreau 515bd8c8fbbSWilly Tarreau static __attribute__((unused)) 516bd8c8fbbSWilly Tarreau pid_t sys_gettid(void) 517bd8c8fbbSWilly Tarreau { 518bd8c8fbbSWilly Tarreau return my_syscall0(__NR_gettid); 519bd8c8fbbSWilly Tarreau } 520bd8c8fbbSWilly Tarreau 521bd8c8fbbSWilly Tarreau static __attribute__((unused)) 522bd8c8fbbSWilly Tarreau pid_t gettid(void) 523bd8c8fbbSWilly Tarreau { 524830acd08SWilly Tarreau return sys_gettid(); 525bd8c8fbbSWilly Tarreau } 526bd8c8fbbSWilly Tarreau 5277efd762eSAmmar Faizi static unsigned long getauxval(unsigned long key); 5287efd762eSAmmar Faizi 5297efd762eSAmmar Faizi /* 5307efd762eSAmmar Faizi * long getpagesize(void); 5317efd762eSAmmar Faizi */ 5327efd762eSAmmar Faizi 5337efd762eSAmmar Faizi static __attribute__((unused)) 5347efd762eSAmmar Faizi long getpagesize(void) 5357efd762eSAmmar Faizi { 5367efd762eSAmmar Faizi long ret; 5377efd762eSAmmar Faizi 5387efd762eSAmmar Faizi ret = getauxval(AT_PAGESZ); 5397efd762eSAmmar Faizi if (!ret) { 5407efd762eSAmmar Faizi SET_ERRNO(ENOENT); 5417efd762eSAmmar Faizi return -1; 5427efd762eSAmmar Faizi } 5437efd762eSAmmar Faizi 5447efd762eSAmmar Faizi return ret; 5457efd762eSAmmar Faizi } 5467efd762eSAmmar Faizi 547bd8c8fbbSWilly Tarreau 548bd8c8fbbSWilly Tarreau /* 549bd8c8fbbSWilly Tarreau * int gettimeofday(struct timeval *tv, struct timezone *tz); 550bd8c8fbbSWilly Tarreau */ 551bd8c8fbbSWilly Tarreau 552bd8c8fbbSWilly Tarreau static __attribute__((unused)) 553bd8c8fbbSWilly Tarreau int sys_gettimeofday(struct timeval *tv, struct timezone *tz) 554bd8c8fbbSWilly Tarreau { 555bd8c8fbbSWilly Tarreau return my_syscall2(__NR_gettimeofday, tv, tz); 556bd8c8fbbSWilly Tarreau } 557bd8c8fbbSWilly Tarreau 558bd8c8fbbSWilly Tarreau static __attribute__((unused)) 559bd8c8fbbSWilly Tarreau int gettimeofday(struct timeval *tv, struct timezone *tz) 560bd8c8fbbSWilly Tarreau { 561bd8c8fbbSWilly Tarreau int ret = sys_gettimeofday(tv, tz); 562bd8c8fbbSWilly Tarreau 563bd8c8fbbSWilly Tarreau if (ret < 0) { 564bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 565bd8c8fbbSWilly Tarreau ret = -1; 566bd8c8fbbSWilly Tarreau } 567bd8c8fbbSWilly Tarreau return ret; 568bd8c8fbbSWilly Tarreau } 569bd8c8fbbSWilly Tarreau 570bd8c8fbbSWilly Tarreau 571bd8c8fbbSWilly Tarreau /* 572919d0532SWilly Tarreau * uid_t getuid(void); 573919d0532SWilly Tarreau */ 574919d0532SWilly Tarreau 575919d0532SWilly Tarreau static __attribute__((unused)) 576919d0532SWilly Tarreau uid_t sys_getuid(void) 577919d0532SWilly Tarreau { 578919d0532SWilly Tarreau #ifdef __NR_getuid32 579919d0532SWilly Tarreau return my_syscall0(__NR_getuid32); 580919d0532SWilly Tarreau #else 581919d0532SWilly Tarreau return my_syscall0(__NR_getuid); 582919d0532SWilly Tarreau #endif 583919d0532SWilly Tarreau } 584919d0532SWilly Tarreau 585919d0532SWilly Tarreau static __attribute__((unused)) 586919d0532SWilly Tarreau uid_t getuid(void) 587919d0532SWilly Tarreau { 588919d0532SWilly Tarreau return sys_getuid(); 589919d0532SWilly Tarreau } 590919d0532SWilly Tarreau 591919d0532SWilly Tarreau 592919d0532SWilly Tarreau /* 593bd8c8fbbSWilly Tarreau * int ioctl(int fd, unsigned long req, void *value); 594bd8c8fbbSWilly Tarreau */ 595bd8c8fbbSWilly Tarreau 596bd8c8fbbSWilly Tarreau static __attribute__((unused)) 597bd8c8fbbSWilly Tarreau int sys_ioctl(int fd, unsigned long req, void *value) 598bd8c8fbbSWilly Tarreau { 599bd8c8fbbSWilly Tarreau return my_syscall3(__NR_ioctl, fd, req, value); 600bd8c8fbbSWilly Tarreau } 601bd8c8fbbSWilly Tarreau 602bd8c8fbbSWilly Tarreau static __attribute__((unused)) 603bd8c8fbbSWilly Tarreau int ioctl(int fd, unsigned long req, void *value) 604bd8c8fbbSWilly Tarreau { 605bd8c8fbbSWilly Tarreau int ret = sys_ioctl(fd, req, value); 606bd8c8fbbSWilly Tarreau 607bd8c8fbbSWilly Tarreau if (ret < 0) { 608bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 609bd8c8fbbSWilly Tarreau ret = -1; 610bd8c8fbbSWilly Tarreau } 611bd8c8fbbSWilly Tarreau return ret; 612bd8c8fbbSWilly Tarreau } 613bd8c8fbbSWilly Tarreau 614bd8c8fbbSWilly Tarreau /* 615bd8c8fbbSWilly Tarreau * int kill(pid_t pid, int signal); 616bd8c8fbbSWilly Tarreau */ 617bd8c8fbbSWilly Tarreau 618bd8c8fbbSWilly Tarreau static __attribute__((unused)) 619bd8c8fbbSWilly Tarreau int sys_kill(pid_t pid, int signal) 620bd8c8fbbSWilly Tarreau { 621bd8c8fbbSWilly Tarreau return my_syscall2(__NR_kill, pid, signal); 622bd8c8fbbSWilly Tarreau } 623bd8c8fbbSWilly Tarreau 624bd8c8fbbSWilly Tarreau static __attribute__((unused)) 625bd8c8fbbSWilly Tarreau int kill(pid_t pid, int signal) 626bd8c8fbbSWilly Tarreau { 627bd8c8fbbSWilly Tarreau int ret = sys_kill(pid, signal); 628bd8c8fbbSWilly Tarreau 629bd8c8fbbSWilly Tarreau if (ret < 0) { 630bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 631bd8c8fbbSWilly Tarreau ret = -1; 632bd8c8fbbSWilly Tarreau } 633bd8c8fbbSWilly Tarreau return ret; 634bd8c8fbbSWilly Tarreau } 635bd8c8fbbSWilly Tarreau 636bd8c8fbbSWilly Tarreau 637bd8c8fbbSWilly Tarreau /* 638bd8c8fbbSWilly Tarreau * int link(const char *old, const char *new); 639bd8c8fbbSWilly Tarreau */ 640bd8c8fbbSWilly Tarreau 641bd8c8fbbSWilly Tarreau static __attribute__((unused)) 642bd8c8fbbSWilly Tarreau int sys_link(const char *old, const char *new) 643bd8c8fbbSWilly Tarreau { 644bd8c8fbbSWilly Tarreau #ifdef __NR_linkat 645bd8c8fbbSWilly Tarreau return my_syscall5(__NR_linkat, AT_FDCWD, old, AT_FDCWD, new, 0); 646bd8c8fbbSWilly Tarreau #elif defined(__NR_link) 647bd8c8fbbSWilly Tarreau return my_syscall2(__NR_link, old, new); 648bd8c8fbbSWilly Tarreau #else 649bd8c8fbbSWilly Tarreau #error Neither __NR_linkat nor __NR_link defined, cannot implement sys_link() 650bd8c8fbbSWilly Tarreau #endif 651bd8c8fbbSWilly Tarreau } 652bd8c8fbbSWilly Tarreau 653bd8c8fbbSWilly Tarreau static __attribute__((unused)) 654bd8c8fbbSWilly Tarreau int link(const char *old, const char *new) 655bd8c8fbbSWilly Tarreau { 656bd8c8fbbSWilly Tarreau int ret = sys_link(old, new); 657bd8c8fbbSWilly Tarreau 658bd8c8fbbSWilly Tarreau if (ret < 0) { 659bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 660bd8c8fbbSWilly Tarreau ret = -1; 661bd8c8fbbSWilly Tarreau } 662bd8c8fbbSWilly Tarreau return ret; 663bd8c8fbbSWilly Tarreau } 664bd8c8fbbSWilly Tarreau 665bd8c8fbbSWilly Tarreau 666bd8c8fbbSWilly Tarreau /* 667bd8c8fbbSWilly Tarreau * off_t lseek(int fd, off_t offset, int whence); 668bd8c8fbbSWilly Tarreau */ 669bd8c8fbbSWilly Tarreau 670bd8c8fbbSWilly Tarreau static __attribute__((unused)) 671bd8c8fbbSWilly Tarreau off_t sys_lseek(int fd, off_t offset, int whence) 672bd8c8fbbSWilly Tarreau { 673bd8c8fbbSWilly Tarreau return my_syscall3(__NR_lseek, fd, offset, whence); 674bd8c8fbbSWilly Tarreau } 675bd8c8fbbSWilly Tarreau 676bd8c8fbbSWilly Tarreau static __attribute__((unused)) 677bd8c8fbbSWilly Tarreau off_t lseek(int fd, off_t offset, int whence) 678bd8c8fbbSWilly Tarreau { 679bd8c8fbbSWilly Tarreau off_t ret = sys_lseek(fd, offset, whence); 680bd8c8fbbSWilly Tarreau 681bd8c8fbbSWilly Tarreau if (ret < 0) { 682bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 683bd8c8fbbSWilly Tarreau ret = -1; 684bd8c8fbbSWilly Tarreau } 685bd8c8fbbSWilly Tarreau return ret; 686bd8c8fbbSWilly Tarreau } 687bd8c8fbbSWilly Tarreau 688bd8c8fbbSWilly Tarreau 689bd8c8fbbSWilly Tarreau /* 690bd8c8fbbSWilly Tarreau * int mkdir(const char *path, mode_t mode); 691bd8c8fbbSWilly Tarreau */ 692bd8c8fbbSWilly Tarreau 693bd8c8fbbSWilly Tarreau static __attribute__((unused)) 694bd8c8fbbSWilly Tarreau int sys_mkdir(const char *path, mode_t mode) 695bd8c8fbbSWilly Tarreau { 696bd8c8fbbSWilly Tarreau #ifdef __NR_mkdirat 697bd8c8fbbSWilly Tarreau return my_syscall3(__NR_mkdirat, AT_FDCWD, path, mode); 698bd8c8fbbSWilly Tarreau #elif defined(__NR_mkdir) 699bd8c8fbbSWilly Tarreau return my_syscall2(__NR_mkdir, path, mode); 700bd8c8fbbSWilly Tarreau #else 701bd8c8fbbSWilly Tarreau #error Neither __NR_mkdirat nor __NR_mkdir defined, cannot implement sys_mkdir() 702bd8c8fbbSWilly Tarreau #endif 703bd8c8fbbSWilly Tarreau } 704bd8c8fbbSWilly Tarreau 705bd8c8fbbSWilly Tarreau static __attribute__((unused)) 706bd8c8fbbSWilly Tarreau int mkdir(const char *path, mode_t mode) 707bd8c8fbbSWilly Tarreau { 708bd8c8fbbSWilly Tarreau int ret = sys_mkdir(path, mode); 709bd8c8fbbSWilly Tarreau 710bd8c8fbbSWilly Tarreau if (ret < 0) { 711bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 712bd8c8fbbSWilly Tarreau ret = -1; 713bd8c8fbbSWilly Tarreau } 714bd8c8fbbSWilly Tarreau return ret; 715bd8c8fbbSWilly Tarreau } 716bd8c8fbbSWilly Tarreau 717bd8c8fbbSWilly Tarreau 718bd8c8fbbSWilly Tarreau /* 719bd8c8fbbSWilly Tarreau * int mknod(const char *path, mode_t mode, dev_t dev); 720bd8c8fbbSWilly Tarreau */ 721bd8c8fbbSWilly Tarreau 722bd8c8fbbSWilly Tarreau static __attribute__((unused)) 723bd8c8fbbSWilly Tarreau long sys_mknod(const char *path, mode_t mode, dev_t dev) 724bd8c8fbbSWilly Tarreau { 725bd8c8fbbSWilly Tarreau #ifdef __NR_mknodat 726bd8c8fbbSWilly Tarreau return my_syscall4(__NR_mknodat, AT_FDCWD, path, mode, dev); 727bd8c8fbbSWilly Tarreau #elif defined(__NR_mknod) 728bd8c8fbbSWilly Tarreau return my_syscall3(__NR_mknod, path, mode, dev); 729bd8c8fbbSWilly Tarreau #else 730bd8c8fbbSWilly Tarreau #error Neither __NR_mknodat nor __NR_mknod defined, cannot implement sys_mknod() 731bd8c8fbbSWilly Tarreau #endif 732bd8c8fbbSWilly Tarreau } 733bd8c8fbbSWilly Tarreau 734bd8c8fbbSWilly Tarreau static __attribute__((unused)) 735bd8c8fbbSWilly Tarreau int mknod(const char *path, mode_t mode, dev_t dev) 736bd8c8fbbSWilly Tarreau { 737bd8c8fbbSWilly Tarreau int ret = sys_mknod(path, mode, dev); 738bd8c8fbbSWilly Tarreau 739bd8c8fbbSWilly Tarreau if (ret < 0) { 740bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 741bd8c8fbbSWilly Tarreau ret = -1; 742bd8c8fbbSWilly Tarreau } 743bd8c8fbbSWilly Tarreau return ret; 744bd8c8fbbSWilly Tarreau } 745bd8c8fbbSWilly Tarreau 746544fa1a2SAmmar Faizi #ifndef MAP_SHARED 747544fa1a2SAmmar Faizi #define MAP_SHARED 0x01 /* Share changes */ 748544fa1a2SAmmar Faizi #define MAP_PRIVATE 0x02 /* Changes are private */ 749544fa1a2SAmmar Faizi #define MAP_SHARED_VALIDATE 0x03 /* share + validate extension flags */ 750544fa1a2SAmmar Faizi #endif 751544fa1a2SAmmar Faizi 752544fa1a2SAmmar Faizi #ifndef MAP_FAILED 753544fa1a2SAmmar Faizi #define MAP_FAILED ((void *)-1) 754544fa1a2SAmmar Faizi #endif 755544fa1a2SAmmar Faizi 75618a5a09dSSven Schnelle #ifndef sys_mmap 757544fa1a2SAmmar Faizi static __attribute__((unused)) 758544fa1a2SAmmar Faizi void *sys_mmap(void *addr, size_t length, int prot, int flags, int fd, 759544fa1a2SAmmar Faizi off_t offset) 760544fa1a2SAmmar Faizi { 761544fa1a2SAmmar Faizi #ifndef my_syscall6 762544fa1a2SAmmar Faizi /* Function not implemented. */ 7638b53e83bSWilly Tarreau return (void *)-ENOSYS; 764544fa1a2SAmmar Faizi #else 765544fa1a2SAmmar Faizi 766544fa1a2SAmmar Faizi int n; 767544fa1a2SAmmar Faizi 768364702f7SWilly Tarreau #if defined(__NR_mmap2) 769544fa1a2SAmmar Faizi n = __NR_mmap2; 770544fa1a2SAmmar Faizi offset >>= 12; 771544fa1a2SAmmar Faizi #else 772544fa1a2SAmmar Faizi n = __NR_mmap; 773544fa1a2SAmmar Faizi #endif 774544fa1a2SAmmar Faizi 775544fa1a2SAmmar Faizi return (void *)my_syscall6(n, addr, length, prot, flags, fd, offset); 776544fa1a2SAmmar Faizi #endif 777544fa1a2SAmmar Faizi } 77818a5a09dSSven Schnelle #endif 779544fa1a2SAmmar Faizi 780544fa1a2SAmmar Faizi static __attribute__((unused)) 781544fa1a2SAmmar Faizi void *mmap(void *addr, size_t length, int prot, int flags, int fd, off_t offset) 782544fa1a2SAmmar Faizi { 783544fa1a2SAmmar Faizi void *ret = sys_mmap(addr, length, prot, flags, fd, offset); 784544fa1a2SAmmar Faizi 785544fa1a2SAmmar Faizi if ((unsigned long)ret >= -4095UL) { 786544fa1a2SAmmar Faizi SET_ERRNO(-(long)ret); 787544fa1a2SAmmar Faizi ret = MAP_FAILED; 788544fa1a2SAmmar Faizi } 789544fa1a2SAmmar Faizi return ret; 790544fa1a2SAmmar Faizi } 791544fa1a2SAmmar Faizi 792544fa1a2SAmmar Faizi static __attribute__((unused)) 793544fa1a2SAmmar Faizi int sys_munmap(void *addr, size_t length) 794544fa1a2SAmmar Faizi { 795544fa1a2SAmmar Faizi return my_syscall2(__NR_munmap, addr, length); 796544fa1a2SAmmar Faizi } 797544fa1a2SAmmar Faizi 798544fa1a2SAmmar Faizi static __attribute__((unused)) 799544fa1a2SAmmar Faizi int munmap(void *addr, size_t length) 800544fa1a2SAmmar Faizi { 801544fa1a2SAmmar Faizi int ret = sys_munmap(addr, length); 802544fa1a2SAmmar Faizi 803544fa1a2SAmmar Faizi if (ret < 0) { 804544fa1a2SAmmar Faizi SET_ERRNO(-ret); 805544fa1a2SAmmar Faizi ret = -1; 806544fa1a2SAmmar Faizi } 807544fa1a2SAmmar Faizi return ret; 808544fa1a2SAmmar Faizi } 809bd8c8fbbSWilly Tarreau 810bd8c8fbbSWilly Tarreau /* 811bd8c8fbbSWilly Tarreau * int mount(const char *source, const char *target, 812bd8c8fbbSWilly Tarreau * const char *fstype, unsigned long flags, 813bd8c8fbbSWilly Tarreau * const void *data); 814bd8c8fbbSWilly Tarreau */ 815bd8c8fbbSWilly Tarreau static __attribute__((unused)) 816bd8c8fbbSWilly Tarreau int sys_mount(const char *src, const char *tgt, const char *fst, 817bd8c8fbbSWilly Tarreau unsigned long flags, const void *data) 818bd8c8fbbSWilly Tarreau { 819bd8c8fbbSWilly Tarreau return my_syscall5(__NR_mount, src, tgt, fst, flags, data); 820bd8c8fbbSWilly Tarreau } 821bd8c8fbbSWilly Tarreau 822bd8c8fbbSWilly Tarreau static __attribute__((unused)) 823bd8c8fbbSWilly Tarreau int mount(const char *src, const char *tgt, 824bd8c8fbbSWilly Tarreau const char *fst, unsigned long flags, 825bd8c8fbbSWilly Tarreau const void *data) 826bd8c8fbbSWilly Tarreau { 827bd8c8fbbSWilly Tarreau int ret = sys_mount(src, tgt, fst, flags, data); 828bd8c8fbbSWilly Tarreau 829bd8c8fbbSWilly Tarreau if (ret < 0) { 830bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 831bd8c8fbbSWilly Tarreau ret = -1; 832bd8c8fbbSWilly Tarreau } 833bd8c8fbbSWilly Tarreau return ret; 834bd8c8fbbSWilly Tarreau } 835bd8c8fbbSWilly Tarreau 836bd8c8fbbSWilly Tarreau 837bd8c8fbbSWilly Tarreau /* 838a7604ba1SWilly Tarreau * int open(const char *path, int flags[, mode_t mode]); 839bd8c8fbbSWilly Tarreau */ 840bd8c8fbbSWilly Tarreau 841bd8c8fbbSWilly Tarreau static __attribute__((unused)) 842bd8c8fbbSWilly Tarreau int sys_open(const char *path, int flags, mode_t mode) 843bd8c8fbbSWilly Tarreau { 844bd8c8fbbSWilly Tarreau #ifdef __NR_openat 845bd8c8fbbSWilly Tarreau return my_syscall4(__NR_openat, AT_FDCWD, path, flags, mode); 846bd8c8fbbSWilly Tarreau #elif defined(__NR_open) 847bd8c8fbbSWilly Tarreau return my_syscall3(__NR_open, path, flags, mode); 848bd8c8fbbSWilly Tarreau #else 849bd8c8fbbSWilly Tarreau #error Neither __NR_openat nor __NR_open defined, cannot implement sys_open() 850bd8c8fbbSWilly Tarreau #endif 851bd8c8fbbSWilly Tarreau } 852bd8c8fbbSWilly Tarreau 853bd8c8fbbSWilly Tarreau static __attribute__((unused)) 854a7604ba1SWilly Tarreau int open(const char *path, int flags, ...) 855bd8c8fbbSWilly Tarreau { 856a7604ba1SWilly Tarreau mode_t mode = 0; 857a7604ba1SWilly Tarreau int ret; 858a7604ba1SWilly Tarreau 859a7604ba1SWilly Tarreau if (flags & O_CREAT) { 860a7604ba1SWilly Tarreau va_list args; 861a7604ba1SWilly Tarreau 862a7604ba1SWilly Tarreau va_start(args, flags); 863a7604ba1SWilly Tarreau mode = va_arg(args, mode_t); 864a7604ba1SWilly Tarreau va_end(args); 865a7604ba1SWilly Tarreau } 866a7604ba1SWilly Tarreau 867a7604ba1SWilly Tarreau ret = sys_open(path, flags, mode); 868bd8c8fbbSWilly Tarreau 869bd8c8fbbSWilly Tarreau if (ret < 0) { 870bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 871bd8c8fbbSWilly Tarreau ret = -1; 872bd8c8fbbSWilly Tarreau } 873bd8c8fbbSWilly Tarreau return ret; 874bd8c8fbbSWilly Tarreau } 875bd8c8fbbSWilly Tarreau 876bd8c8fbbSWilly Tarreau 877bd8c8fbbSWilly Tarreau /* 878bd8c8fbbSWilly Tarreau * int pivot_root(const char *new, const char *old); 879bd8c8fbbSWilly Tarreau */ 880bd8c8fbbSWilly Tarreau 881bd8c8fbbSWilly Tarreau static __attribute__((unused)) 882bd8c8fbbSWilly Tarreau int sys_pivot_root(const char *new, const char *old) 883bd8c8fbbSWilly Tarreau { 884bd8c8fbbSWilly Tarreau return my_syscall2(__NR_pivot_root, new, old); 885bd8c8fbbSWilly Tarreau } 886bd8c8fbbSWilly Tarreau 887bd8c8fbbSWilly Tarreau static __attribute__((unused)) 888bd8c8fbbSWilly Tarreau int pivot_root(const char *new, const char *old) 889bd8c8fbbSWilly Tarreau { 890bd8c8fbbSWilly Tarreau int ret = sys_pivot_root(new, old); 891bd8c8fbbSWilly Tarreau 892bd8c8fbbSWilly Tarreau if (ret < 0) { 893bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 894bd8c8fbbSWilly Tarreau ret = -1; 895bd8c8fbbSWilly Tarreau } 896bd8c8fbbSWilly Tarreau return ret; 897bd8c8fbbSWilly Tarreau } 898bd8c8fbbSWilly Tarreau 899bd8c8fbbSWilly Tarreau 900bd8c8fbbSWilly Tarreau /* 901bd8c8fbbSWilly Tarreau * int poll(struct pollfd *fds, int nfds, int timeout); 902bd8c8fbbSWilly Tarreau */ 903bd8c8fbbSWilly Tarreau 904bd8c8fbbSWilly Tarreau static __attribute__((unused)) 905bd8c8fbbSWilly Tarreau int sys_poll(struct pollfd *fds, int nfds, int timeout) 906bd8c8fbbSWilly Tarreau { 907bd8c8fbbSWilly Tarreau #if defined(__NR_ppoll) 908bd8c8fbbSWilly Tarreau struct timespec t; 909bd8c8fbbSWilly Tarreau 910bd8c8fbbSWilly Tarreau if (timeout >= 0) { 911bd8c8fbbSWilly Tarreau t.tv_sec = timeout / 1000; 912bd8c8fbbSWilly Tarreau t.tv_nsec = (timeout % 1000) * 1000000; 913bd8c8fbbSWilly Tarreau } 914bd8c8fbbSWilly Tarreau return my_syscall4(__NR_ppoll, fds, nfds, (timeout >= 0) ? &t : NULL, NULL); 915bd8c8fbbSWilly Tarreau #elif defined(__NR_poll) 916bd8c8fbbSWilly Tarreau return my_syscall3(__NR_poll, fds, nfds, timeout); 917bd8c8fbbSWilly Tarreau #else 918bd8c8fbbSWilly Tarreau #error Neither __NR_ppoll nor __NR_poll defined, cannot implement sys_poll() 919bd8c8fbbSWilly Tarreau #endif 920bd8c8fbbSWilly Tarreau } 921bd8c8fbbSWilly Tarreau 922bd8c8fbbSWilly Tarreau static __attribute__((unused)) 923bd8c8fbbSWilly Tarreau int poll(struct pollfd *fds, int nfds, int timeout) 924bd8c8fbbSWilly Tarreau { 925bd8c8fbbSWilly Tarreau int ret = sys_poll(fds, nfds, timeout); 926bd8c8fbbSWilly Tarreau 927bd8c8fbbSWilly Tarreau if (ret < 0) { 928bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 929bd8c8fbbSWilly Tarreau ret = -1; 930bd8c8fbbSWilly Tarreau } 931bd8c8fbbSWilly Tarreau return ret; 932bd8c8fbbSWilly Tarreau } 933bd8c8fbbSWilly Tarreau 934bd8c8fbbSWilly Tarreau 935bd8c8fbbSWilly Tarreau /* 936bd8c8fbbSWilly Tarreau * ssize_t read(int fd, void *buf, size_t count); 937bd8c8fbbSWilly Tarreau */ 938bd8c8fbbSWilly Tarreau 939bd8c8fbbSWilly Tarreau static __attribute__((unused)) 940bd8c8fbbSWilly Tarreau ssize_t sys_read(int fd, void *buf, size_t count) 941bd8c8fbbSWilly Tarreau { 942bd8c8fbbSWilly Tarreau return my_syscall3(__NR_read, fd, buf, count); 943bd8c8fbbSWilly Tarreau } 944bd8c8fbbSWilly Tarreau 945bd8c8fbbSWilly Tarreau static __attribute__((unused)) 946bd8c8fbbSWilly Tarreau ssize_t read(int fd, void *buf, size_t count) 947bd8c8fbbSWilly Tarreau { 948bd8c8fbbSWilly Tarreau ssize_t ret = sys_read(fd, buf, count); 949bd8c8fbbSWilly Tarreau 950bd8c8fbbSWilly Tarreau if (ret < 0) { 951bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 952bd8c8fbbSWilly Tarreau ret = -1; 953bd8c8fbbSWilly Tarreau } 954bd8c8fbbSWilly Tarreau return ret; 955bd8c8fbbSWilly Tarreau } 956bd8c8fbbSWilly Tarreau 957bd8c8fbbSWilly Tarreau 958bd8c8fbbSWilly Tarreau /* 959bd8c8fbbSWilly Tarreau * int reboot(int cmd); 960bd8c8fbbSWilly Tarreau * <cmd> is among LINUX_REBOOT_CMD_* 961bd8c8fbbSWilly Tarreau */ 962bd8c8fbbSWilly Tarreau 963bd8c8fbbSWilly Tarreau static __attribute__((unused)) 964bd8c8fbbSWilly Tarreau ssize_t sys_reboot(int magic1, int magic2, int cmd, void *arg) 965bd8c8fbbSWilly Tarreau { 966bd8c8fbbSWilly Tarreau return my_syscall4(__NR_reboot, magic1, magic2, cmd, arg); 967bd8c8fbbSWilly Tarreau } 968bd8c8fbbSWilly Tarreau 969bd8c8fbbSWilly Tarreau static __attribute__((unused)) 970bd8c8fbbSWilly Tarreau int reboot(int cmd) 971bd8c8fbbSWilly Tarreau { 972bd8c8fbbSWilly Tarreau int ret = sys_reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, cmd, 0); 973bd8c8fbbSWilly Tarreau 974bd8c8fbbSWilly Tarreau if (ret < 0) { 975bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 976bd8c8fbbSWilly Tarreau ret = -1; 977bd8c8fbbSWilly Tarreau } 978bd8c8fbbSWilly Tarreau return ret; 979bd8c8fbbSWilly Tarreau } 980bd8c8fbbSWilly Tarreau 981bd8c8fbbSWilly Tarreau 982bd8c8fbbSWilly Tarreau /* 983bd8c8fbbSWilly Tarreau * int sched_yield(void); 984bd8c8fbbSWilly Tarreau */ 985bd8c8fbbSWilly Tarreau 986bd8c8fbbSWilly Tarreau static __attribute__((unused)) 987bd8c8fbbSWilly Tarreau int sys_sched_yield(void) 988bd8c8fbbSWilly Tarreau { 989bd8c8fbbSWilly Tarreau return my_syscall0(__NR_sched_yield); 990bd8c8fbbSWilly Tarreau } 991bd8c8fbbSWilly Tarreau 992bd8c8fbbSWilly Tarreau static __attribute__((unused)) 993bd8c8fbbSWilly Tarreau int sched_yield(void) 994bd8c8fbbSWilly Tarreau { 995bd8c8fbbSWilly Tarreau int ret = sys_sched_yield(); 996bd8c8fbbSWilly Tarreau 997bd8c8fbbSWilly Tarreau if (ret < 0) { 998bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 999bd8c8fbbSWilly Tarreau ret = -1; 1000bd8c8fbbSWilly Tarreau } 1001bd8c8fbbSWilly Tarreau return ret; 1002bd8c8fbbSWilly Tarreau } 1003bd8c8fbbSWilly Tarreau 1004bd8c8fbbSWilly Tarreau 1005bd8c8fbbSWilly Tarreau /* 1006bd8c8fbbSWilly Tarreau * int select(int nfds, fd_set *read_fds, fd_set *write_fds, 1007bd8c8fbbSWilly Tarreau * fd_set *except_fds, struct timeval *timeout); 1008bd8c8fbbSWilly Tarreau */ 1009bd8c8fbbSWilly Tarreau 1010bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1011bd8c8fbbSWilly Tarreau int sys_select(int nfds, fd_set *rfds, fd_set *wfds, fd_set *efds, struct timeval *timeout) 1012bd8c8fbbSWilly Tarreau { 1013bd8c8fbbSWilly Tarreau #if defined(__ARCH_WANT_SYS_OLD_SELECT) && !defined(__NR__newselect) 1014bd8c8fbbSWilly Tarreau struct sel_arg_struct { 1015bd8c8fbbSWilly Tarreau unsigned long n; 1016bd8c8fbbSWilly Tarreau fd_set *r, *w, *e; 1017bd8c8fbbSWilly Tarreau struct timeval *t; 1018bd8c8fbbSWilly Tarreau } arg = { .n = nfds, .r = rfds, .w = wfds, .e = efds, .t = timeout }; 1019bd8c8fbbSWilly Tarreau return my_syscall1(__NR_select, &arg); 1020bd8c8fbbSWilly Tarreau #elif defined(__ARCH_WANT_SYS_PSELECT6) && defined(__NR_pselect6) 1021bd8c8fbbSWilly Tarreau struct timespec t; 1022bd8c8fbbSWilly Tarreau 1023bd8c8fbbSWilly Tarreau if (timeout) { 1024bd8c8fbbSWilly Tarreau t.tv_sec = timeout->tv_sec; 1025bd8c8fbbSWilly Tarreau t.tv_nsec = timeout->tv_usec * 1000; 1026bd8c8fbbSWilly Tarreau } 1027bd8c8fbbSWilly Tarreau return my_syscall6(__NR_pselect6, nfds, rfds, wfds, efds, timeout ? &t : NULL, NULL); 1028bd8c8fbbSWilly Tarreau #elif defined(__NR__newselect) || defined(__NR_select) 1029bd8c8fbbSWilly Tarreau #ifndef __NR__newselect 1030bd8c8fbbSWilly Tarreau #define __NR__newselect __NR_select 1031bd8c8fbbSWilly Tarreau #endif 1032bd8c8fbbSWilly Tarreau return my_syscall5(__NR__newselect, nfds, rfds, wfds, efds, timeout); 1033bd8c8fbbSWilly Tarreau #else 1034bd8c8fbbSWilly Tarreau #error None of __NR_select, __NR_pselect6, nor __NR__newselect defined, cannot implement sys_select() 1035bd8c8fbbSWilly Tarreau #endif 1036bd8c8fbbSWilly Tarreau } 1037bd8c8fbbSWilly Tarreau 1038bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1039bd8c8fbbSWilly Tarreau int select(int nfds, fd_set *rfds, fd_set *wfds, fd_set *efds, struct timeval *timeout) 1040bd8c8fbbSWilly Tarreau { 1041bd8c8fbbSWilly Tarreau int ret = sys_select(nfds, rfds, wfds, efds, timeout); 1042bd8c8fbbSWilly Tarreau 1043bd8c8fbbSWilly Tarreau if (ret < 0) { 1044bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1045bd8c8fbbSWilly Tarreau ret = -1; 1046bd8c8fbbSWilly Tarreau } 1047bd8c8fbbSWilly Tarreau return ret; 1048bd8c8fbbSWilly Tarreau } 1049bd8c8fbbSWilly Tarreau 1050bd8c8fbbSWilly Tarreau 1051bd8c8fbbSWilly Tarreau /* 1052bd8c8fbbSWilly Tarreau * int setpgid(pid_t pid, pid_t pgid); 1053bd8c8fbbSWilly Tarreau */ 1054bd8c8fbbSWilly Tarreau 1055bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1056bd8c8fbbSWilly Tarreau int sys_setpgid(pid_t pid, pid_t pgid) 1057bd8c8fbbSWilly Tarreau { 1058bd8c8fbbSWilly Tarreau return my_syscall2(__NR_setpgid, pid, pgid); 1059bd8c8fbbSWilly Tarreau } 1060bd8c8fbbSWilly Tarreau 1061bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1062bd8c8fbbSWilly Tarreau int setpgid(pid_t pid, pid_t pgid) 1063bd8c8fbbSWilly Tarreau { 1064bd8c8fbbSWilly Tarreau int ret = sys_setpgid(pid, pgid); 1065bd8c8fbbSWilly Tarreau 1066bd8c8fbbSWilly Tarreau if (ret < 0) { 1067bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1068bd8c8fbbSWilly Tarreau ret = -1; 1069bd8c8fbbSWilly Tarreau } 1070bd8c8fbbSWilly Tarreau return ret; 1071bd8c8fbbSWilly Tarreau } 1072bd8c8fbbSWilly Tarreau 1073bd8c8fbbSWilly Tarreau 1074bd8c8fbbSWilly Tarreau /* 1075bd8c8fbbSWilly Tarreau * pid_t setsid(void); 1076bd8c8fbbSWilly Tarreau */ 1077bd8c8fbbSWilly Tarreau 1078bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1079bd8c8fbbSWilly Tarreau pid_t sys_setsid(void) 1080bd8c8fbbSWilly Tarreau { 1081bd8c8fbbSWilly Tarreau return my_syscall0(__NR_setsid); 1082bd8c8fbbSWilly Tarreau } 1083bd8c8fbbSWilly Tarreau 1084bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1085bd8c8fbbSWilly Tarreau pid_t setsid(void) 1086bd8c8fbbSWilly Tarreau { 1087bd8c8fbbSWilly Tarreau pid_t ret = sys_setsid(); 1088bd8c8fbbSWilly Tarreau 1089bd8c8fbbSWilly Tarreau if (ret < 0) { 1090bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1091bd8c8fbbSWilly Tarreau ret = -1; 1092bd8c8fbbSWilly Tarreau } 1093bd8c8fbbSWilly Tarreau return ret; 1094bd8c8fbbSWilly Tarreau } 1095bd8c8fbbSWilly Tarreau 1096b551cb7dSFeiyang Chen #if defined(__NR_statx) 1097b551cb7dSFeiyang Chen /* 1098b551cb7dSFeiyang Chen * int statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf); 1099b551cb7dSFeiyang Chen */ 1100b551cb7dSFeiyang Chen 1101b551cb7dSFeiyang Chen static __attribute__((unused)) 1102b551cb7dSFeiyang Chen int sys_statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf) 1103b551cb7dSFeiyang Chen { 1104b551cb7dSFeiyang Chen return my_syscall5(__NR_statx, fd, path, flags, mask, buf); 1105b551cb7dSFeiyang Chen } 1106b551cb7dSFeiyang Chen 1107b551cb7dSFeiyang Chen static __attribute__((unused)) 1108b551cb7dSFeiyang Chen int statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf) 1109b551cb7dSFeiyang Chen { 1110b551cb7dSFeiyang Chen int ret = sys_statx(fd, path, flags, mask, buf); 1111b551cb7dSFeiyang Chen 1112b551cb7dSFeiyang Chen if (ret < 0) { 1113b551cb7dSFeiyang Chen SET_ERRNO(-ret); 1114b551cb7dSFeiyang Chen ret = -1; 1115b551cb7dSFeiyang Chen } 1116b551cb7dSFeiyang Chen return ret; 1117b551cb7dSFeiyang Chen } 1118b551cb7dSFeiyang Chen #endif 1119bd8c8fbbSWilly Tarreau 1120bd8c8fbbSWilly Tarreau /* 1121bd8c8fbbSWilly Tarreau * int stat(const char *path, struct stat *buf); 1122bd8c8fbbSWilly Tarreau * Warning: the struct stat's layout is arch-dependent. 1123bd8c8fbbSWilly Tarreau */ 1124bd8c8fbbSWilly Tarreau 1125b551cb7dSFeiyang Chen #if defined(__NR_statx) && !defined(__NR_newfstatat) && !defined(__NR_stat) 1126b551cb7dSFeiyang Chen /* 1127b551cb7dSFeiyang Chen * Maybe we can just use statx() when available for all architectures? 1128b551cb7dSFeiyang Chen */ 1129b551cb7dSFeiyang Chen static __attribute__((unused)) 1130b551cb7dSFeiyang Chen int sys_stat(const char *path, struct stat *buf) 1131b551cb7dSFeiyang Chen { 1132b551cb7dSFeiyang Chen struct statx statx; 1133b551cb7dSFeiyang Chen long ret; 1134b551cb7dSFeiyang Chen 1135b551cb7dSFeiyang Chen ret = sys_statx(AT_FDCWD, path, AT_NO_AUTOMOUNT, STATX_BASIC_STATS, &statx); 1136b551cb7dSFeiyang Chen buf->st_dev = ((statx.stx_dev_minor & 0xff) 1137b551cb7dSFeiyang Chen | (statx.stx_dev_major << 8) 1138b551cb7dSFeiyang Chen | ((statx.stx_dev_minor & ~0xff) << 12)); 1139b551cb7dSFeiyang Chen buf->st_ino = statx.stx_ino; 1140b551cb7dSFeiyang Chen buf->st_mode = statx.stx_mode; 1141b551cb7dSFeiyang Chen buf->st_nlink = statx.stx_nlink; 1142b551cb7dSFeiyang Chen buf->st_uid = statx.stx_uid; 1143b551cb7dSFeiyang Chen buf->st_gid = statx.stx_gid; 1144b551cb7dSFeiyang Chen buf->st_rdev = ((statx.stx_rdev_minor & 0xff) 1145b551cb7dSFeiyang Chen | (statx.stx_rdev_major << 8) 1146b551cb7dSFeiyang Chen | ((statx.stx_rdev_minor & ~0xff) << 12)); 1147b551cb7dSFeiyang Chen buf->st_size = statx.stx_size; 1148b551cb7dSFeiyang Chen buf->st_blksize = statx.stx_blksize; 1149b551cb7dSFeiyang Chen buf->st_blocks = statx.stx_blocks; 1150b551cb7dSFeiyang Chen buf->st_atime = statx.stx_atime.tv_sec; 1151b551cb7dSFeiyang Chen buf->st_mtime = statx.stx_mtime.tv_sec; 1152b551cb7dSFeiyang Chen buf->st_ctime = statx.stx_ctime.tv_sec; 1153b551cb7dSFeiyang Chen return ret; 1154b551cb7dSFeiyang Chen } 1155b551cb7dSFeiyang Chen #else 1156bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1157bd8c8fbbSWilly Tarreau int sys_stat(const char *path, struct stat *buf) 1158bd8c8fbbSWilly Tarreau { 1159bd8c8fbbSWilly Tarreau struct sys_stat_struct stat; 1160bd8c8fbbSWilly Tarreau long ret; 1161bd8c8fbbSWilly Tarreau 1162bd8c8fbbSWilly Tarreau #ifdef __NR_newfstatat 1163bd8c8fbbSWilly Tarreau /* only solution for arm64 */ 1164bd8c8fbbSWilly Tarreau ret = my_syscall4(__NR_newfstatat, AT_FDCWD, path, &stat, 0); 1165bd8c8fbbSWilly Tarreau #elif defined(__NR_stat) 1166bd8c8fbbSWilly Tarreau ret = my_syscall2(__NR_stat, path, &stat); 1167bd8c8fbbSWilly Tarreau #else 1168bd8c8fbbSWilly Tarreau #error Neither __NR_newfstatat nor __NR_stat defined, cannot implement sys_stat() 1169bd8c8fbbSWilly Tarreau #endif 1170bd8c8fbbSWilly Tarreau buf->st_dev = stat.st_dev; 1171bd8c8fbbSWilly Tarreau buf->st_ino = stat.st_ino; 1172bd8c8fbbSWilly Tarreau buf->st_mode = stat.st_mode; 1173bd8c8fbbSWilly Tarreau buf->st_nlink = stat.st_nlink; 1174bd8c8fbbSWilly Tarreau buf->st_uid = stat.st_uid; 1175bd8c8fbbSWilly Tarreau buf->st_gid = stat.st_gid; 1176bd8c8fbbSWilly Tarreau buf->st_rdev = stat.st_rdev; 1177bd8c8fbbSWilly Tarreau buf->st_size = stat.st_size; 1178bd8c8fbbSWilly Tarreau buf->st_blksize = stat.st_blksize; 1179bd8c8fbbSWilly Tarreau buf->st_blocks = stat.st_blocks; 1180bd8c8fbbSWilly Tarreau buf->st_atime = stat.st_atime; 1181bd8c8fbbSWilly Tarreau buf->st_mtime = stat.st_mtime; 1182bd8c8fbbSWilly Tarreau buf->st_ctime = stat.st_ctime; 1183bd8c8fbbSWilly Tarreau return ret; 1184bd8c8fbbSWilly Tarreau } 1185b551cb7dSFeiyang Chen #endif 1186bd8c8fbbSWilly Tarreau 1187bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1188bd8c8fbbSWilly Tarreau int stat(const char *path, struct stat *buf) 1189bd8c8fbbSWilly Tarreau { 1190bd8c8fbbSWilly Tarreau int ret = sys_stat(path, buf); 1191bd8c8fbbSWilly Tarreau 1192bd8c8fbbSWilly Tarreau if (ret < 0) { 1193bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1194bd8c8fbbSWilly Tarreau ret = -1; 1195bd8c8fbbSWilly Tarreau } 1196bd8c8fbbSWilly Tarreau return ret; 1197bd8c8fbbSWilly Tarreau } 1198bd8c8fbbSWilly Tarreau 1199bd8c8fbbSWilly Tarreau 1200bd8c8fbbSWilly Tarreau /* 1201bd8c8fbbSWilly Tarreau * int symlink(const char *old, const char *new); 1202bd8c8fbbSWilly Tarreau */ 1203bd8c8fbbSWilly Tarreau 1204bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1205bd8c8fbbSWilly Tarreau int sys_symlink(const char *old, const char *new) 1206bd8c8fbbSWilly Tarreau { 1207bd8c8fbbSWilly Tarreau #ifdef __NR_symlinkat 1208bd8c8fbbSWilly Tarreau return my_syscall3(__NR_symlinkat, old, AT_FDCWD, new); 1209bd8c8fbbSWilly Tarreau #elif defined(__NR_symlink) 1210bd8c8fbbSWilly Tarreau return my_syscall2(__NR_symlink, old, new); 1211bd8c8fbbSWilly Tarreau #else 1212bd8c8fbbSWilly Tarreau #error Neither __NR_symlinkat nor __NR_symlink defined, cannot implement sys_symlink() 1213bd8c8fbbSWilly Tarreau #endif 1214bd8c8fbbSWilly Tarreau } 1215bd8c8fbbSWilly Tarreau 1216bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1217bd8c8fbbSWilly Tarreau int symlink(const char *old, const char *new) 1218bd8c8fbbSWilly Tarreau { 1219bd8c8fbbSWilly Tarreau int ret = sys_symlink(old, new); 1220bd8c8fbbSWilly Tarreau 1221bd8c8fbbSWilly Tarreau if (ret < 0) { 1222bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1223bd8c8fbbSWilly Tarreau ret = -1; 1224bd8c8fbbSWilly Tarreau } 1225bd8c8fbbSWilly Tarreau return ret; 1226bd8c8fbbSWilly Tarreau } 1227bd8c8fbbSWilly Tarreau 1228bd8c8fbbSWilly Tarreau 1229bd8c8fbbSWilly Tarreau /* 1230bd8c8fbbSWilly Tarreau * mode_t umask(mode_t mode); 1231bd8c8fbbSWilly Tarreau */ 1232bd8c8fbbSWilly Tarreau 1233bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1234bd8c8fbbSWilly Tarreau mode_t sys_umask(mode_t mode) 1235bd8c8fbbSWilly Tarreau { 1236bd8c8fbbSWilly Tarreau return my_syscall1(__NR_umask, mode); 1237bd8c8fbbSWilly Tarreau } 1238bd8c8fbbSWilly Tarreau 1239bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1240bd8c8fbbSWilly Tarreau mode_t umask(mode_t mode) 1241bd8c8fbbSWilly Tarreau { 1242bd8c8fbbSWilly Tarreau return sys_umask(mode); 1243bd8c8fbbSWilly Tarreau } 1244bd8c8fbbSWilly Tarreau 1245bd8c8fbbSWilly Tarreau 1246bd8c8fbbSWilly Tarreau /* 1247bd8c8fbbSWilly Tarreau * int umount2(const char *path, int flags); 1248bd8c8fbbSWilly Tarreau */ 1249bd8c8fbbSWilly Tarreau 1250bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1251bd8c8fbbSWilly Tarreau int sys_umount2(const char *path, int flags) 1252bd8c8fbbSWilly Tarreau { 1253bd8c8fbbSWilly Tarreau return my_syscall2(__NR_umount2, path, flags); 1254bd8c8fbbSWilly Tarreau } 1255bd8c8fbbSWilly Tarreau 1256bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1257bd8c8fbbSWilly Tarreau int umount2(const char *path, int flags) 1258bd8c8fbbSWilly Tarreau { 1259bd8c8fbbSWilly Tarreau int ret = sys_umount2(path, flags); 1260bd8c8fbbSWilly Tarreau 1261bd8c8fbbSWilly Tarreau if (ret < 0) { 1262bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1263bd8c8fbbSWilly Tarreau ret = -1; 1264bd8c8fbbSWilly Tarreau } 1265bd8c8fbbSWilly Tarreau return ret; 1266bd8c8fbbSWilly Tarreau } 1267bd8c8fbbSWilly Tarreau 1268bd8c8fbbSWilly Tarreau 1269bd8c8fbbSWilly Tarreau /* 1270bd8c8fbbSWilly Tarreau * int unlink(const char *path); 1271bd8c8fbbSWilly Tarreau */ 1272bd8c8fbbSWilly Tarreau 1273bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1274bd8c8fbbSWilly Tarreau int sys_unlink(const char *path) 1275bd8c8fbbSWilly Tarreau { 1276bd8c8fbbSWilly Tarreau #ifdef __NR_unlinkat 1277bd8c8fbbSWilly Tarreau return my_syscall3(__NR_unlinkat, AT_FDCWD, path, 0); 1278bd8c8fbbSWilly Tarreau #elif defined(__NR_unlink) 1279bd8c8fbbSWilly Tarreau return my_syscall1(__NR_unlink, path); 1280bd8c8fbbSWilly Tarreau #else 1281bd8c8fbbSWilly Tarreau #error Neither __NR_unlinkat nor __NR_unlink defined, cannot implement sys_unlink() 1282bd8c8fbbSWilly Tarreau #endif 1283bd8c8fbbSWilly Tarreau } 1284bd8c8fbbSWilly Tarreau 1285bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1286bd8c8fbbSWilly Tarreau int unlink(const char *path) 1287bd8c8fbbSWilly Tarreau { 1288bd8c8fbbSWilly Tarreau int ret = sys_unlink(path); 1289bd8c8fbbSWilly Tarreau 1290bd8c8fbbSWilly Tarreau if (ret < 0) { 1291bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1292bd8c8fbbSWilly Tarreau ret = -1; 1293bd8c8fbbSWilly Tarreau } 1294bd8c8fbbSWilly Tarreau return ret; 1295bd8c8fbbSWilly Tarreau } 1296bd8c8fbbSWilly Tarreau 1297bd8c8fbbSWilly Tarreau 1298bd8c8fbbSWilly Tarreau /* 1299bd8c8fbbSWilly Tarreau * pid_t wait(int *status); 1300bd8c8fbbSWilly Tarreau * pid_t wait4(pid_t pid, int *status, int options, struct rusage *rusage); 1301bd8c8fbbSWilly Tarreau * pid_t waitpid(pid_t pid, int *status, int options); 1302bd8c8fbbSWilly Tarreau */ 1303bd8c8fbbSWilly Tarreau 1304bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1305bd8c8fbbSWilly Tarreau pid_t sys_wait4(pid_t pid, int *status, int options, struct rusage *rusage) 1306bd8c8fbbSWilly Tarreau { 1307bd8c8fbbSWilly Tarreau return my_syscall4(__NR_wait4, pid, status, options, rusage); 1308bd8c8fbbSWilly Tarreau } 1309bd8c8fbbSWilly Tarreau 1310bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1311bd8c8fbbSWilly Tarreau pid_t wait(int *status) 1312bd8c8fbbSWilly Tarreau { 1313bd8c8fbbSWilly Tarreau pid_t ret = sys_wait4(-1, status, 0, NULL); 1314bd8c8fbbSWilly Tarreau 1315bd8c8fbbSWilly Tarreau if (ret < 0) { 1316bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1317bd8c8fbbSWilly Tarreau ret = -1; 1318bd8c8fbbSWilly Tarreau } 1319bd8c8fbbSWilly Tarreau return ret; 1320bd8c8fbbSWilly Tarreau } 1321bd8c8fbbSWilly Tarreau 1322bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1323bd8c8fbbSWilly Tarreau pid_t wait4(pid_t pid, int *status, int options, struct rusage *rusage) 1324bd8c8fbbSWilly Tarreau { 1325bd8c8fbbSWilly Tarreau pid_t ret = sys_wait4(pid, status, options, rusage); 1326bd8c8fbbSWilly Tarreau 1327bd8c8fbbSWilly Tarreau if (ret < 0) { 1328bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1329bd8c8fbbSWilly Tarreau ret = -1; 1330bd8c8fbbSWilly Tarreau } 1331bd8c8fbbSWilly Tarreau return ret; 1332bd8c8fbbSWilly Tarreau } 1333bd8c8fbbSWilly Tarreau 1334bd8c8fbbSWilly Tarreau 1335bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1336bd8c8fbbSWilly Tarreau pid_t waitpid(pid_t pid, int *status, int options) 1337bd8c8fbbSWilly Tarreau { 1338bd8c8fbbSWilly Tarreau pid_t ret = sys_wait4(pid, status, options, NULL); 1339bd8c8fbbSWilly Tarreau 1340bd8c8fbbSWilly Tarreau if (ret < 0) { 1341bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1342bd8c8fbbSWilly Tarreau ret = -1; 1343bd8c8fbbSWilly Tarreau } 1344bd8c8fbbSWilly Tarreau return ret; 1345bd8c8fbbSWilly Tarreau } 1346bd8c8fbbSWilly Tarreau 1347bd8c8fbbSWilly Tarreau 1348bd8c8fbbSWilly Tarreau /* 1349bd8c8fbbSWilly Tarreau * ssize_t write(int fd, const void *buf, size_t count); 1350bd8c8fbbSWilly Tarreau */ 1351bd8c8fbbSWilly Tarreau 1352bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1353bd8c8fbbSWilly Tarreau ssize_t sys_write(int fd, const void *buf, size_t count) 1354bd8c8fbbSWilly Tarreau { 1355bd8c8fbbSWilly Tarreau return my_syscall3(__NR_write, fd, buf, count); 1356bd8c8fbbSWilly Tarreau } 1357bd8c8fbbSWilly Tarreau 1358bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1359bd8c8fbbSWilly Tarreau ssize_t write(int fd, const void *buf, size_t count) 1360bd8c8fbbSWilly Tarreau { 1361bd8c8fbbSWilly Tarreau ssize_t ret = sys_write(fd, buf, count); 1362bd8c8fbbSWilly Tarreau 1363bd8c8fbbSWilly Tarreau if (ret < 0) { 1364bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1365bd8c8fbbSWilly Tarreau ret = -1; 1366bd8c8fbbSWilly Tarreau } 1367bd8c8fbbSWilly Tarreau return ret; 1368bd8c8fbbSWilly Tarreau } 1369bd8c8fbbSWilly Tarreau 1370e8842cf0SThomas Weißschuh 1371e8842cf0SThomas Weißschuh /* 1372e8842cf0SThomas Weißschuh * int memfd_create(const char *name, unsigned int flags); 1373e8842cf0SThomas Weißschuh */ 1374e8842cf0SThomas Weißschuh 1375e8842cf0SThomas Weißschuh static __attribute__((unused)) 1376e8842cf0SThomas Weißschuh int sys_memfd_create(const char *name, unsigned int flags) 1377e8842cf0SThomas Weißschuh { 1378e8842cf0SThomas Weißschuh return my_syscall2(__NR_memfd_create, name, flags); 1379e8842cf0SThomas Weißschuh } 1380e8842cf0SThomas Weißschuh 1381e8842cf0SThomas Weißschuh static __attribute__((unused)) 1382e8842cf0SThomas Weißschuh int memfd_create(const char *name, unsigned int flags) 1383e8842cf0SThomas Weißschuh { 1384e8842cf0SThomas Weißschuh ssize_t ret = sys_memfd_create(name, flags); 1385e8842cf0SThomas Weißschuh 1386e8842cf0SThomas Weißschuh if (ret < 0) { 1387e8842cf0SThomas Weißschuh SET_ERRNO(-ret); 1388e8842cf0SThomas Weißschuh ret = -1; 1389e8842cf0SThomas Weißschuh } 1390e8842cf0SThomas Weißschuh return ret; 1391e8842cf0SThomas Weißschuh } 1392e8842cf0SThomas Weißschuh 139355abdd1fSWilly Tarreau /* make sure to include all global symbols */ 139455abdd1fSWilly Tarreau #include "nolibc.h" 1395bd8c8fbbSWilly Tarreau 1396bd8c8fbbSWilly Tarreau #endif /* _NOLIBC_SYS_H */ 1397