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> 15bd8c8fbbSWilly Tarreau #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> 22a438e528SFeiyang Chen #include <linux/fcntl.h> // for O_* and AT_* 23b551cb7dSFeiyang Chen #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); 325bd8c8fbbSWilly Tarreau 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 339bd8c8fbbSWilly Tarreau static __attribute__((unused)) 340bd8c8fbbSWilly Tarreau pid_t sys_fork(void) 341bd8c8fbbSWilly Tarreau { 342bd8c8fbbSWilly Tarreau #ifdef __NR_clone 343bd8c8fbbSWilly Tarreau /* note: some archs only have clone() and not fork(). Different archs 344bd8c8fbbSWilly Tarreau * have a different API, but most archs have the flags on first arg and 345bd8c8fbbSWilly Tarreau * will not use the rest with no other flag. 346bd8c8fbbSWilly Tarreau */ 347bd8c8fbbSWilly Tarreau return my_syscall5(__NR_clone, SIGCHLD, 0, 0, 0, 0); 348bd8c8fbbSWilly Tarreau #elif defined(__NR_fork) 349bd8c8fbbSWilly Tarreau return my_syscall0(__NR_fork); 350bd8c8fbbSWilly Tarreau #else 351bd8c8fbbSWilly Tarreau #error Neither __NR_clone nor __NR_fork defined, cannot implement sys_fork() 352bd8c8fbbSWilly Tarreau #endif 353bd8c8fbbSWilly Tarreau } 354bd8c8fbbSWilly Tarreau 355bd8c8fbbSWilly Tarreau static __attribute__((unused)) 356bd8c8fbbSWilly Tarreau pid_t fork(void) 357bd8c8fbbSWilly Tarreau { 358bd8c8fbbSWilly Tarreau pid_t ret = sys_fork(); 359bd8c8fbbSWilly Tarreau 360bd8c8fbbSWilly Tarreau if (ret < 0) { 361bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 362bd8c8fbbSWilly Tarreau ret = -1; 363bd8c8fbbSWilly Tarreau } 364bd8c8fbbSWilly Tarreau return ret; 365bd8c8fbbSWilly Tarreau } 366bd8c8fbbSWilly Tarreau 367bd8c8fbbSWilly Tarreau 368bd8c8fbbSWilly Tarreau /* 369bd8c8fbbSWilly Tarreau * int fsync(int fd); 370bd8c8fbbSWilly Tarreau */ 371bd8c8fbbSWilly Tarreau 372bd8c8fbbSWilly Tarreau static __attribute__((unused)) 373bd8c8fbbSWilly Tarreau int sys_fsync(int fd) 374bd8c8fbbSWilly Tarreau { 375bd8c8fbbSWilly Tarreau return my_syscall1(__NR_fsync, fd); 376bd8c8fbbSWilly Tarreau } 377bd8c8fbbSWilly Tarreau 378bd8c8fbbSWilly Tarreau static __attribute__((unused)) 379bd8c8fbbSWilly Tarreau int fsync(int fd) 380bd8c8fbbSWilly Tarreau { 381bd8c8fbbSWilly Tarreau int ret = sys_fsync(fd); 382bd8c8fbbSWilly Tarreau 383bd8c8fbbSWilly Tarreau if (ret < 0) { 384bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 385bd8c8fbbSWilly Tarreau ret = -1; 386bd8c8fbbSWilly Tarreau } 387bd8c8fbbSWilly Tarreau return ret; 388bd8c8fbbSWilly Tarreau } 389bd8c8fbbSWilly Tarreau 390bd8c8fbbSWilly Tarreau 391bd8c8fbbSWilly Tarreau /* 392bd8c8fbbSWilly Tarreau * int getdents64(int fd, struct linux_dirent64 *dirp, int count); 393bd8c8fbbSWilly Tarreau */ 394bd8c8fbbSWilly Tarreau 395bd8c8fbbSWilly Tarreau static __attribute__((unused)) 396bd8c8fbbSWilly Tarreau int sys_getdents64(int fd, struct linux_dirent64 *dirp, int count) 397bd8c8fbbSWilly Tarreau { 398bd8c8fbbSWilly Tarreau return my_syscall3(__NR_getdents64, fd, dirp, count); 399bd8c8fbbSWilly Tarreau } 400bd8c8fbbSWilly Tarreau 401bd8c8fbbSWilly Tarreau static __attribute__((unused)) 402bd8c8fbbSWilly Tarreau int getdents64(int fd, struct linux_dirent64 *dirp, int count) 403bd8c8fbbSWilly Tarreau { 404bd8c8fbbSWilly Tarreau int ret = sys_getdents64(fd, dirp, count); 405bd8c8fbbSWilly Tarreau 406bd8c8fbbSWilly Tarreau if (ret < 0) { 407bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 408bd8c8fbbSWilly Tarreau ret = -1; 409bd8c8fbbSWilly Tarreau } 410bd8c8fbbSWilly Tarreau return ret; 411bd8c8fbbSWilly Tarreau } 412bd8c8fbbSWilly Tarreau 413bd8c8fbbSWilly Tarreau 414bd8c8fbbSWilly Tarreau /* 415919d0532SWilly Tarreau * uid_t geteuid(void); 416919d0532SWilly Tarreau */ 417919d0532SWilly Tarreau 418919d0532SWilly Tarreau static __attribute__((unused)) 419919d0532SWilly Tarreau uid_t sys_geteuid(void) 420919d0532SWilly Tarreau { 421919d0532SWilly Tarreau #ifdef __NR_geteuid32 422919d0532SWilly Tarreau return my_syscall0(__NR_geteuid32); 423919d0532SWilly Tarreau #else 424919d0532SWilly Tarreau return my_syscall0(__NR_geteuid); 425919d0532SWilly Tarreau #endif 426919d0532SWilly Tarreau } 427919d0532SWilly Tarreau 428919d0532SWilly Tarreau static __attribute__((unused)) 429919d0532SWilly Tarreau uid_t geteuid(void) 430919d0532SWilly Tarreau { 431919d0532SWilly Tarreau return sys_geteuid(); 432919d0532SWilly Tarreau } 433919d0532SWilly Tarreau 434919d0532SWilly Tarreau 435919d0532SWilly Tarreau /* 436bd8c8fbbSWilly Tarreau * pid_t getpgid(pid_t pid); 437bd8c8fbbSWilly Tarreau */ 438bd8c8fbbSWilly Tarreau 439bd8c8fbbSWilly Tarreau static __attribute__((unused)) 440bd8c8fbbSWilly Tarreau pid_t sys_getpgid(pid_t pid) 441bd8c8fbbSWilly Tarreau { 442bd8c8fbbSWilly Tarreau return my_syscall1(__NR_getpgid, pid); 443bd8c8fbbSWilly Tarreau } 444bd8c8fbbSWilly Tarreau 445bd8c8fbbSWilly Tarreau static __attribute__((unused)) 446bd8c8fbbSWilly Tarreau pid_t getpgid(pid_t pid) 447bd8c8fbbSWilly Tarreau { 448bd8c8fbbSWilly Tarreau pid_t ret = sys_getpgid(pid); 449bd8c8fbbSWilly Tarreau 450bd8c8fbbSWilly Tarreau if (ret < 0) { 451bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 452bd8c8fbbSWilly Tarreau ret = -1; 453bd8c8fbbSWilly Tarreau } 454bd8c8fbbSWilly Tarreau return ret; 455bd8c8fbbSWilly Tarreau } 456bd8c8fbbSWilly Tarreau 457bd8c8fbbSWilly Tarreau 458bd8c8fbbSWilly Tarreau /* 459bd8c8fbbSWilly Tarreau * pid_t getpgrp(void); 460bd8c8fbbSWilly Tarreau */ 461bd8c8fbbSWilly Tarreau 462bd8c8fbbSWilly Tarreau static __attribute__((unused)) 463bd8c8fbbSWilly Tarreau pid_t sys_getpgrp(void) 464bd8c8fbbSWilly Tarreau { 465bd8c8fbbSWilly Tarreau return sys_getpgid(0); 466bd8c8fbbSWilly Tarreau } 467bd8c8fbbSWilly Tarreau 468bd8c8fbbSWilly Tarreau static __attribute__((unused)) 469bd8c8fbbSWilly Tarreau pid_t getpgrp(void) 470bd8c8fbbSWilly Tarreau { 471830acd08SWilly Tarreau return sys_getpgrp(); 472bd8c8fbbSWilly Tarreau } 473bd8c8fbbSWilly Tarreau 474bd8c8fbbSWilly Tarreau 475bd8c8fbbSWilly Tarreau /* 476bd8c8fbbSWilly Tarreau * pid_t getpid(void); 477bd8c8fbbSWilly Tarreau */ 478bd8c8fbbSWilly Tarreau 479bd8c8fbbSWilly Tarreau static __attribute__((unused)) 480bd8c8fbbSWilly Tarreau pid_t sys_getpid(void) 481bd8c8fbbSWilly Tarreau { 482bd8c8fbbSWilly Tarreau return my_syscall0(__NR_getpid); 483bd8c8fbbSWilly Tarreau } 484bd8c8fbbSWilly Tarreau 485bd8c8fbbSWilly Tarreau static __attribute__((unused)) 486bd8c8fbbSWilly Tarreau pid_t getpid(void) 487bd8c8fbbSWilly Tarreau { 488830acd08SWilly Tarreau return sys_getpid(); 489bd8c8fbbSWilly Tarreau } 490bd8c8fbbSWilly Tarreau 491bd8c8fbbSWilly Tarreau 492bd8c8fbbSWilly Tarreau /* 49354abe359SWilly Tarreau * pid_t getppid(void); 49454abe359SWilly Tarreau */ 49554abe359SWilly Tarreau 49654abe359SWilly Tarreau static __attribute__((unused)) 49754abe359SWilly Tarreau pid_t sys_getppid(void) 49854abe359SWilly Tarreau { 49954abe359SWilly Tarreau return my_syscall0(__NR_getppid); 50054abe359SWilly Tarreau } 50154abe359SWilly Tarreau 50254abe359SWilly Tarreau static __attribute__((unused)) 50354abe359SWilly Tarreau pid_t getppid(void) 50454abe359SWilly Tarreau { 50554abe359SWilly Tarreau return sys_getppid(); 50654abe359SWilly Tarreau } 50754abe359SWilly Tarreau 50854abe359SWilly Tarreau 50954abe359SWilly Tarreau /* 510bd8c8fbbSWilly Tarreau * pid_t gettid(void); 511bd8c8fbbSWilly Tarreau */ 512bd8c8fbbSWilly Tarreau 513bd8c8fbbSWilly Tarreau static __attribute__((unused)) 514bd8c8fbbSWilly Tarreau pid_t sys_gettid(void) 515bd8c8fbbSWilly Tarreau { 516bd8c8fbbSWilly Tarreau return my_syscall0(__NR_gettid); 517bd8c8fbbSWilly Tarreau } 518bd8c8fbbSWilly Tarreau 519bd8c8fbbSWilly Tarreau static __attribute__((unused)) 520bd8c8fbbSWilly Tarreau pid_t gettid(void) 521bd8c8fbbSWilly Tarreau { 522830acd08SWilly Tarreau return sys_gettid(); 523bd8c8fbbSWilly Tarreau } 524bd8c8fbbSWilly Tarreau 5257efd762eSAmmar Faizi static unsigned long getauxval(unsigned long key); 5267efd762eSAmmar Faizi 5277efd762eSAmmar Faizi /* 5287efd762eSAmmar Faizi * long getpagesize(void); 5297efd762eSAmmar Faizi */ 5307efd762eSAmmar Faizi 5317efd762eSAmmar Faizi static __attribute__((unused)) 5327efd762eSAmmar Faizi long getpagesize(void) 5337efd762eSAmmar Faizi { 5347efd762eSAmmar Faizi long ret; 5357efd762eSAmmar Faizi 5367efd762eSAmmar Faizi ret = getauxval(AT_PAGESZ); 5377efd762eSAmmar Faizi if (!ret) { 5387efd762eSAmmar Faizi SET_ERRNO(ENOENT); 5397efd762eSAmmar Faizi return -1; 5407efd762eSAmmar Faizi } 5417efd762eSAmmar Faizi 5427efd762eSAmmar Faizi return ret; 5437efd762eSAmmar Faizi } 5447efd762eSAmmar Faizi 545bd8c8fbbSWilly Tarreau 546bd8c8fbbSWilly Tarreau /* 547bd8c8fbbSWilly Tarreau * int gettimeofday(struct timeval *tv, struct timezone *tz); 548bd8c8fbbSWilly Tarreau */ 549bd8c8fbbSWilly Tarreau 550bd8c8fbbSWilly Tarreau static __attribute__((unused)) 551bd8c8fbbSWilly Tarreau int sys_gettimeofday(struct timeval *tv, struct timezone *tz) 552bd8c8fbbSWilly Tarreau { 553bd8c8fbbSWilly Tarreau return my_syscall2(__NR_gettimeofday, tv, tz); 554bd8c8fbbSWilly Tarreau } 555bd8c8fbbSWilly Tarreau 556bd8c8fbbSWilly Tarreau static __attribute__((unused)) 557bd8c8fbbSWilly Tarreau int gettimeofday(struct timeval *tv, struct timezone *tz) 558bd8c8fbbSWilly Tarreau { 559bd8c8fbbSWilly Tarreau int ret = sys_gettimeofday(tv, tz); 560bd8c8fbbSWilly Tarreau 561bd8c8fbbSWilly Tarreau if (ret < 0) { 562bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 563bd8c8fbbSWilly Tarreau ret = -1; 564bd8c8fbbSWilly Tarreau } 565bd8c8fbbSWilly Tarreau return ret; 566bd8c8fbbSWilly Tarreau } 567bd8c8fbbSWilly Tarreau 568bd8c8fbbSWilly Tarreau 569bd8c8fbbSWilly Tarreau /* 570919d0532SWilly Tarreau * uid_t getuid(void); 571919d0532SWilly Tarreau */ 572919d0532SWilly Tarreau 573919d0532SWilly Tarreau static __attribute__((unused)) 574919d0532SWilly Tarreau uid_t sys_getuid(void) 575919d0532SWilly Tarreau { 576919d0532SWilly Tarreau #ifdef __NR_getuid32 577919d0532SWilly Tarreau return my_syscall0(__NR_getuid32); 578919d0532SWilly Tarreau #else 579919d0532SWilly Tarreau return my_syscall0(__NR_getuid); 580919d0532SWilly Tarreau #endif 581919d0532SWilly Tarreau } 582919d0532SWilly Tarreau 583919d0532SWilly Tarreau static __attribute__((unused)) 584919d0532SWilly Tarreau uid_t getuid(void) 585919d0532SWilly Tarreau { 586919d0532SWilly Tarreau return sys_getuid(); 587919d0532SWilly Tarreau } 588919d0532SWilly Tarreau 589919d0532SWilly Tarreau 590919d0532SWilly Tarreau /* 591bd8c8fbbSWilly Tarreau * int ioctl(int fd, unsigned long req, void *value); 592bd8c8fbbSWilly Tarreau */ 593bd8c8fbbSWilly Tarreau 594bd8c8fbbSWilly Tarreau static __attribute__((unused)) 595bd8c8fbbSWilly Tarreau int sys_ioctl(int fd, unsigned long req, void *value) 596bd8c8fbbSWilly Tarreau { 597bd8c8fbbSWilly Tarreau return my_syscall3(__NR_ioctl, fd, req, value); 598bd8c8fbbSWilly Tarreau } 599bd8c8fbbSWilly Tarreau 600bd8c8fbbSWilly Tarreau static __attribute__((unused)) 601bd8c8fbbSWilly Tarreau int ioctl(int fd, unsigned long req, void *value) 602bd8c8fbbSWilly Tarreau { 603bd8c8fbbSWilly Tarreau int ret = sys_ioctl(fd, req, value); 604bd8c8fbbSWilly Tarreau 605bd8c8fbbSWilly Tarreau if (ret < 0) { 606bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 607bd8c8fbbSWilly Tarreau ret = -1; 608bd8c8fbbSWilly Tarreau } 609bd8c8fbbSWilly Tarreau return ret; 610bd8c8fbbSWilly Tarreau } 611bd8c8fbbSWilly Tarreau 612bd8c8fbbSWilly Tarreau /* 613bd8c8fbbSWilly Tarreau * int kill(pid_t pid, int signal); 614bd8c8fbbSWilly Tarreau */ 615bd8c8fbbSWilly Tarreau 616bd8c8fbbSWilly Tarreau static __attribute__((unused)) 617bd8c8fbbSWilly Tarreau int sys_kill(pid_t pid, int signal) 618bd8c8fbbSWilly Tarreau { 619bd8c8fbbSWilly Tarreau return my_syscall2(__NR_kill, pid, signal); 620bd8c8fbbSWilly Tarreau } 621bd8c8fbbSWilly Tarreau 622bd8c8fbbSWilly Tarreau static __attribute__((unused)) 623bd8c8fbbSWilly Tarreau int kill(pid_t pid, int signal) 624bd8c8fbbSWilly Tarreau { 625bd8c8fbbSWilly Tarreau int ret = sys_kill(pid, signal); 626bd8c8fbbSWilly Tarreau 627bd8c8fbbSWilly Tarreau if (ret < 0) { 628bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 629bd8c8fbbSWilly Tarreau ret = -1; 630bd8c8fbbSWilly Tarreau } 631bd8c8fbbSWilly Tarreau return ret; 632bd8c8fbbSWilly Tarreau } 633bd8c8fbbSWilly Tarreau 634bd8c8fbbSWilly Tarreau 635bd8c8fbbSWilly Tarreau /* 636bd8c8fbbSWilly Tarreau * int link(const char *old, const char *new); 637bd8c8fbbSWilly Tarreau */ 638bd8c8fbbSWilly Tarreau 639bd8c8fbbSWilly Tarreau static __attribute__((unused)) 640bd8c8fbbSWilly Tarreau int sys_link(const char *old, const char *new) 641bd8c8fbbSWilly Tarreau { 642bd8c8fbbSWilly Tarreau #ifdef __NR_linkat 643bd8c8fbbSWilly Tarreau return my_syscall5(__NR_linkat, AT_FDCWD, old, AT_FDCWD, new, 0); 644bd8c8fbbSWilly Tarreau #elif defined(__NR_link) 645bd8c8fbbSWilly Tarreau return my_syscall2(__NR_link, old, new); 646bd8c8fbbSWilly Tarreau #else 647bd8c8fbbSWilly Tarreau #error Neither __NR_linkat nor __NR_link defined, cannot implement sys_link() 648bd8c8fbbSWilly Tarreau #endif 649bd8c8fbbSWilly Tarreau } 650bd8c8fbbSWilly Tarreau 651bd8c8fbbSWilly Tarreau static __attribute__((unused)) 652bd8c8fbbSWilly Tarreau int link(const char *old, const char *new) 653bd8c8fbbSWilly Tarreau { 654bd8c8fbbSWilly Tarreau int ret = sys_link(old, new); 655bd8c8fbbSWilly Tarreau 656bd8c8fbbSWilly Tarreau if (ret < 0) { 657bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 658bd8c8fbbSWilly Tarreau ret = -1; 659bd8c8fbbSWilly Tarreau } 660bd8c8fbbSWilly Tarreau return ret; 661bd8c8fbbSWilly Tarreau } 662bd8c8fbbSWilly Tarreau 663bd8c8fbbSWilly Tarreau 664bd8c8fbbSWilly Tarreau /* 665bd8c8fbbSWilly Tarreau * off_t lseek(int fd, off_t offset, int whence); 666bd8c8fbbSWilly Tarreau */ 667bd8c8fbbSWilly Tarreau 668bd8c8fbbSWilly Tarreau static __attribute__((unused)) 669bd8c8fbbSWilly Tarreau off_t sys_lseek(int fd, off_t offset, int whence) 670bd8c8fbbSWilly Tarreau { 671bd8c8fbbSWilly Tarreau return my_syscall3(__NR_lseek, fd, offset, whence); 672bd8c8fbbSWilly Tarreau } 673bd8c8fbbSWilly Tarreau 674bd8c8fbbSWilly Tarreau static __attribute__((unused)) 675bd8c8fbbSWilly Tarreau off_t lseek(int fd, off_t offset, int whence) 676bd8c8fbbSWilly Tarreau { 677bd8c8fbbSWilly Tarreau off_t ret = sys_lseek(fd, offset, whence); 678bd8c8fbbSWilly Tarreau 679bd8c8fbbSWilly Tarreau if (ret < 0) { 680bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 681bd8c8fbbSWilly Tarreau ret = -1; 682bd8c8fbbSWilly Tarreau } 683bd8c8fbbSWilly Tarreau return ret; 684bd8c8fbbSWilly Tarreau } 685bd8c8fbbSWilly Tarreau 686bd8c8fbbSWilly Tarreau 687bd8c8fbbSWilly Tarreau /* 688bd8c8fbbSWilly Tarreau * int mkdir(const char *path, mode_t mode); 689bd8c8fbbSWilly Tarreau */ 690bd8c8fbbSWilly Tarreau 691bd8c8fbbSWilly Tarreau static __attribute__((unused)) 692bd8c8fbbSWilly Tarreau int sys_mkdir(const char *path, mode_t mode) 693bd8c8fbbSWilly Tarreau { 694bd8c8fbbSWilly Tarreau #ifdef __NR_mkdirat 695bd8c8fbbSWilly Tarreau return my_syscall3(__NR_mkdirat, AT_FDCWD, path, mode); 696bd8c8fbbSWilly Tarreau #elif defined(__NR_mkdir) 697bd8c8fbbSWilly Tarreau return my_syscall2(__NR_mkdir, path, mode); 698bd8c8fbbSWilly Tarreau #else 699bd8c8fbbSWilly Tarreau #error Neither __NR_mkdirat nor __NR_mkdir defined, cannot implement sys_mkdir() 700bd8c8fbbSWilly Tarreau #endif 701bd8c8fbbSWilly Tarreau } 702bd8c8fbbSWilly Tarreau 703bd8c8fbbSWilly Tarreau static __attribute__((unused)) 704bd8c8fbbSWilly Tarreau int mkdir(const char *path, mode_t mode) 705bd8c8fbbSWilly Tarreau { 706bd8c8fbbSWilly Tarreau int ret = sys_mkdir(path, mode); 707bd8c8fbbSWilly Tarreau 708bd8c8fbbSWilly Tarreau if (ret < 0) { 709bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 710bd8c8fbbSWilly Tarreau ret = -1; 711bd8c8fbbSWilly Tarreau } 712bd8c8fbbSWilly Tarreau return ret; 713bd8c8fbbSWilly Tarreau } 714bd8c8fbbSWilly Tarreau 715bd8c8fbbSWilly Tarreau 716bd8c8fbbSWilly Tarreau /* 717bd8c8fbbSWilly Tarreau * int mknod(const char *path, mode_t mode, dev_t dev); 718bd8c8fbbSWilly Tarreau */ 719bd8c8fbbSWilly Tarreau 720bd8c8fbbSWilly Tarreau static __attribute__((unused)) 721bd8c8fbbSWilly Tarreau long sys_mknod(const char *path, mode_t mode, dev_t dev) 722bd8c8fbbSWilly Tarreau { 723bd8c8fbbSWilly Tarreau #ifdef __NR_mknodat 724bd8c8fbbSWilly Tarreau return my_syscall4(__NR_mknodat, AT_FDCWD, path, mode, dev); 725bd8c8fbbSWilly Tarreau #elif defined(__NR_mknod) 726bd8c8fbbSWilly Tarreau return my_syscall3(__NR_mknod, path, mode, dev); 727bd8c8fbbSWilly Tarreau #else 728bd8c8fbbSWilly Tarreau #error Neither __NR_mknodat nor __NR_mknod defined, cannot implement sys_mknod() 729bd8c8fbbSWilly Tarreau #endif 730bd8c8fbbSWilly Tarreau } 731bd8c8fbbSWilly Tarreau 732bd8c8fbbSWilly Tarreau static __attribute__((unused)) 733bd8c8fbbSWilly Tarreau int mknod(const char *path, mode_t mode, dev_t dev) 734bd8c8fbbSWilly Tarreau { 735bd8c8fbbSWilly Tarreau int ret = sys_mknod(path, mode, dev); 736bd8c8fbbSWilly Tarreau 737bd8c8fbbSWilly Tarreau if (ret < 0) { 738bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 739bd8c8fbbSWilly Tarreau ret = -1; 740bd8c8fbbSWilly Tarreau } 741bd8c8fbbSWilly Tarreau return ret; 742bd8c8fbbSWilly Tarreau } 743bd8c8fbbSWilly Tarreau 744544fa1a2SAmmar Faizi #ifndef MAP_SHARED 745544fa1a2SAmmar Faizi #define MAP_SHARED 0x01 /* Share changes */ 746544fa1a2SAmmar Faizi #define MAP_PRIVATE 0x02 /* Changes are private */ 747544fa1a2SAmmar Faizi #define MAP_SHARED_VALIDATE 0x03 /* share + validate extension flags */ 748544fa1a2SAmmar Faizi #endif 749544fa1a2SAmmar Faizi 750544fa1a2SAmmar Faizi #ifndef MAP_FAILED 751544fa1a2SAmmar Faizi #define MAP_FAILED ((void *)-1) 752544fa1a2SAmmar Faizi #endif 753544fa1a2SAmmar Faizi 75418a5a09dSSven Schnelle #ifndef sys_mmap 755544fa1a2SAmmar Faizi static __attribute__((unused)) 756544fa1a2SAmmar Faizi void *sys_mmap(void *addr, size_t length, int prot, int flags, int fd, 757544fa1a2SAmmar Faizi off_t offset) 758544fa1a2SAmmar Faizi { 759544fa1a2SAmmar Faizi #ifndef my_syscall6 760544fa1a2SAmmar Faizi /* Function not implemented. */ 7618b53e83bSWilly Tarreau return (void *)-ENOSYS; 762544fa1a2SAmmar Faizi #else 763544fa1a2SAmmar Faizi 764544fa1a2SAmmar Faizi int n; 765544fa1a2SAmmar Faizi 766364702f7SWilly Tarreau #if defined(__NR_mmap2) 767544fa1a2SAmmar Faizi n = __NR_mmap2; 768544fa1a2SAmmar Faizi offset >>= 12; 769544fa1a2SAmmar Faizi #else 770544fa1a2SAmmar Faizi n = __NR_mmap; 771544fa1a2SAmmar Faizi #endif 772544fa1a2SAmmar Faizi 773544fa1a2SAmmar Faizi return (void *)my_syscall6(n, addr, length, prot, flags, fd, offset); 774544fa1a2SAmmar Faizi #endif 775544fa1a2SAmmar Faizi } 77618a5a09dSSven Schnelle #endif 777544fa1a2SAmmar Faizi 778544fa1a2SAmmar Faizi static __attribute__((unused)) 779544fa1a2SAmmar Faizi void *mmap(void *addr, size_t length, int prot, int flags, int fd, off_t offset) 780544fa1a2SAmmar Faizi { 781544fa1a2SAmmar Faizi void *ret = sys_mmap(addr, length, prot, flags, fd, offset); 782544fa1a2SAmmar Faizi 783544fa1a2SAmmar Faizi if ((unsigned long)ret >= -4095UL) { 784544fa1a2SAmmar Faizi SET_ERRNO(-(long)ret); 785544fa1a2SAmmar Faizi ret = MAP_FAILED; 786544fa1a2SAmmar Faizi } 787544fa1a2SAmmar Faizi return ret; 788544fa1a2SAmmar Faizi } 789544fa1a2SAmmar Faizi 790544fa1a2SAmmar Faizi static __attribute__((unused)) 791544fa1a2SAmmar Faizi int sys_munmap(void *addr, size_t length) 792544fa1a2SAmmar Faizi { 793544fa1a2SAmmar Faizi return my_syscall2(__NR_munmap, addr, length); 794544fa1a2SAmmar Faizi } 795544fa1a2SAmmar Faizi 796544fa1a2SAmmar Faizi static __attribute__((unused)) 797544fa1a2SAmmar Faizi int munmap(void *addr, size_t length) 798544fa1a2SAmmar Faizi { 799544fa1a2SAmmar Faizi int ret = sys_munmap(addr, length); 800544fa1a2SAmmar Faizi 801544fa1a2SAmmar Faizi if (ret < 0) { 802544fa1a2SAmmar Faizi SET_ERRNO(-ret); 803544fa1a2SAmmar Faizi ret = -1; 804544fa1a2SAmmar Faizi } 805544fa1a2SAmmar Faizi return ret; 806544fa1a2SAmmar Faizi } 807bd8c8fbbSWilly Tarreau 808bd8c8fbbSWilly Tarreau /* 809bd8c8fbbSWilly Tarreau * int mount(const char *source, const char *target, 810bd8c8fbbSWilly Tarreau * const char *fstype, unsigned long flags, 811bd8c8fbbSWilly Tarreau * const void *data); 812bd8c8fbbSWilly Tarreau */ 813bd8c8fbbSWilly Tarreau static __attribute__((unused)) 814bd8c8fbbSWilly Tarreau int sys_mount(const char *src, const char *tgt, const char *fst, 815bd8c8fbbSWilly Tarreau unsigned long flags, const void *data) 816bd8c8fbbSWilly Tarreau { 817bd8c8fbbSWilly Tarreau return my_syscall5(__NR_mount, src, tgt, fst, flags, data); 818bd8c8fbbSWilly Tarreau } 819bd8c8fbbSWilly Tarreau 820bd8c8fbbSWilly Tarreau static __attribute__((unused)) 821bd8c8fbbSWilly Tarreau int mount(const char *src, const char *tgt, 822bd8c8fbbSWilly Tarreau const char *fst, unsigned long flags, 823bd8c8fbbSWilly Tarreau const void *data) 824bd8c8fbbSWilly Tarreau { 825bd8c8fbbSWilly Tarreau int ret = sys_mount(src, tgt, fst, flags, data); 826bd8c8fbbSWilly Tarreau 827bd8c8fbbSWilly Tarreau if (ret < 0) { 828bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 829bd8c8fbbSWilly Tarreau ret = -1; 830bd8c8fbbSWilly Tarreau } 831bd8c8fbbSWilly Tarreau return ret; 832bd8c8fbbSWilly Tarreau } 833bd8c8fbbSWilly Tarreau 834bd8c8fbbSWilly Tarreau 835bd8c8fbbSWilly Tarreau /* 836a7604ba1SWilly Tarreau * int open(const char *path, int flags[, mode_t mode]); 837bd8c8fbbSWilly Tarreau */ 838bd8c8fbbSWilly Tarreau 839bd8c8fbbSWilly Tarreau static __attribute__((unused)) 840bd8c8fbbSWilly Tarreau int sys_open(const char *path, int flags, mode_t mode) 841bd8c8fbbSWilly Tarreau { 842bd8c8fbbSWilly Tarreau #ifdef __NR_openat 843bd8c8fbbSWilly Tarreau return my_syscall4(__NR_openat, AT_FDCWD, path, flags, mode); 844bd8c8fbbSWilly Tarreau #elif defined(__NR_open) 845bd8c8fbbSWilly Tarreau return my_syscall3(__NR_open, path, flags, mode); 846bd8c8fbbSWilly Tarreau #else 847bd8c8fbbSWilly Tarreau #error Neither __NR_openat nor __NR_open defined, cannot implement sys_open() 848bd8c8fbbSWilly Tarreau #endif 849bd8c8fbbSWilly Tarreau } 850bd8c8fbbSWilly Tarreau 851bd8c8fbbSWilly Tarreau static __attribute__((unused)) 852a7604ba1SWilly Tarreau int open(const char *path, int flags, ...) 853bd8c8fbbSWilly Tarreau { 854a7604ba1SWilly Tarreau mode_t mode = 0; 855a7604ba1SWilly Tarreau int ret; 856a7604ba1SWilly Tarreau 857a7604ba1SWilly Tarreau if (flags & O_CREAT) { 858a7604ba1SWilly Tarreau va_list args; 859a7604ba1SWilly Tarreau 860a7604ba1SWilly Tarreau va_start(args, flags); 861a7604ba1SWilly Tarreau mode = va_arg(args, mode_t); 862a7604ba1SWilly Tarreau va_end(args); 863a7604ba1SWilly Tarreau } 864a7604ba1SWilly Tarreau 865a7604ba1SWilly Tarreau ret = sys_open(path, flags, mode); 866bd8c8fbbSWilly Tarreau 867bd8c8fbbSWilly Tarreau if (ret < 0) { 868bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 869bd8c8fbbSWilly Tarreau ret = -1; 870bd8c8fbbSWilly Tarreau } 871bd8c8fbbSWilly Tarreau return ret; 872bd8c8fbbSWilly Tarreau } 873bd8c8fbbSWilly Tarreau 874bd8c8fbbSWilly Tarreau 875bd8c8fbbSWilly Tarreau /* 876bd8c8fbbSWilly Tarreau * int pivot_root(const char *new, const char *old); 877bd8c8fbbSWilly Tarreau */ 878bd8c8fbbSWilly Tarreau 879bd8c8fbbSWilly Tarreau static __attribute__((unused)) 880bd8c8fbbSWilly Tarreau int sys_pivot_root(const char *new, const char *old) 881bd8c8fbbSWilly Tarreau { 882bd8c8fbbSWilly Tarreau return my_syscall2(__NR_pivot_root, new, old); 883bd8c8fbbSWilly Tarreau } 884bd8c8fbbSWilly Tarreau 885bd8c8fbbSWilly Tarreau static __attribute__((unused)) 886bd8c8fbbSWilly Tarreau int pivot_root(const char *new, const char *old) 887bd8c8fbbSWilly Tarreau { 888bd8c8fbbSWilly Tarreau int ret = sys_pivot_root(new, old); 889bd8c8fbbSWilly Tarreau 890bd8c8fbbSWilly Tarreau if (ret < 0) { 891bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 892bd8c8fbbSWilly Tarreau ret = -1; 893bd8c8fbbSWilly Tarreau } 894bd8c8fbbSWilly Tarreau return ret; 895bd8c8fbbSWilly Tarreau } 896bd8c8fbbSWilly Tarreau 897bd8c8fbbSWilly Tarreau 898bd8c8fbbSWilly Tarreau /* 899bd8c8fbbSWilly Tarreau * int poll(struct pollfd *fds, int nfds, int timeout); 900bd8c8fbbSWilly Tarreau */ 901bd8c8fbbSWilly Tarreau 902bd8c8fbbSWilly Tarreau static __attribute__((unused)) 903bd8c8fbbSWilly Tarreau int sys_poll(struct pollfd *fds, int nfds, int timeout) 904bd8c8fbbSWilly Tarreau { 905bd8c8fbbSWilly Tarreau #if defined(__NR_ppoll) 906bd8c8fbbSWilly Tarreau struct timespec t; 907bd8c8fbbSWilly Tarreau 908bd8c8fbbSWilly Tarreau if (timeout >= 0) { 909bd8c8fbbSWilly Tarreau t.tv_sec = timeout / 1000; 910bd8c8fbbSWilly Tarreau t.tv_nsec = (timeout % 1000) * 1000000; 911bd8c8fbbSWilly Tarreau } 912bd8c8fbbSWilly Tarreau return my_syscall4(__NR_ppoll, fds, nfds, (timeout >= 0) ? &t : NULL, NULL); 913bd8c8fbbSWilly Tarreau #elif defined(__NR_poll) 914bd8c8fbbSWilly Tarreau return my_syscall3(__NR_poll, fds, nfds, timeout); 915bd8c8fbbSWilly Tarreau #else 916bd8c8fbbSWilly Tarreau #error Neither __NR_ppoll nor __NR_poll defined, cannot implement sys_poll() 917bd8c8fbbSWilly Tarreau #endif 918bd8c8fbbSWilly Tarreau } 919bd8c8fbbSWilly Tarreau 920bd8c8fbbSWilly Tarreau static __attribute__((unused)) 921bd8c8fbbSWilly Tarreau int poll(struct pollfd *fds, int nfds, int timeout) 922bd8c8fbbSWilly Tarreau { 923bd8c8fbbSWilly Tarreau int ret = sys_poll(fds, nfds, timeout); 924bd8c8fbbSWilly Tarreau 925bd8c8fbbSWilly Tarreau if (ret < 0) { 926bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 927bd8c8fbbSWilly Tarreau ret = -1; 928bd8c8fbbSWilly Tarreau } 929bd8c8fbbSWilly Tarreau return ret; 930bd8c8fbbSWilly Tarreau } 931bd8c8fbbSWilly Tarreau 932bd8c8fbbSWilly Tarreau 933bd8c8fbbSWilly Tarreau /* 934bd8c8fbbSWilly Tarreau * ssize_t read(int fd, void *buf, size_t count); 935bd8c8fbbSWilly Tarreau */ 936bd8c8fbbSWilly Tarreau 937bd8c8fbbSWilly Tarreau static __attribute__((unused)) 938bd8c8fbbSWilly Tarreau ssize_t sys_read(int fd, void *buf, size_t count) 939bd8c8fbbSWilly Tarreau { 940bd8c8fbbSWilly Tarreau return my_syscall3(__NR_read, fd, buf, count); 941bd8c8fbbSWilly Tarreau } 942bd8c8fbbSWilly Tarreau 943bd8c8fbbSWilly Tarreau static __attribute__((unused)) 944bd8c8fbbSWilly Tarreau ssize_t read(int fd, void *buf, size_t count) 945bd8c8fbbSWilly Tarreau { 946bd8c8fbbSWilly Tarreau ssize_t ret = sys_read(fd, buf, count); 947bd8c8fbbSWilly Tarreau 948bd8c8fbbSWilly Tarreau if (ret < 0) { 949bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 950bd8c8fbbSWilly Tarreau ret = -1; 951bd8c8fbbSWilly Tarreau } 952bd8c8fbbSWilly Tarreau return ret; 953bd8c8fbbSWilly Tarreau } 954bd8c8fbbSWilly Tarreau 955bd8c8fbbSWilly Tarreau 956bd8c8fbbSWilly Tarreau /* 957bd8c8fbbSWilly Tarreau * int reboot(int cmd); 958bd8c8fbbSWilly Tarreau * <cmd> is among LINUX_REBOOT_CMD_* 959bd8c8fbbSWilly Tarreau */ 960bd8c8fbbSWilly Tarreau 961bd8c8fbbSWilly Tarreau static __attribute__((unused)) 962bd8c8fbbSWilly Tarreau ssize_t sys_reboot(int magic1, int magic2, int cmd, void *arg) 963bd8c8fbbSWilly Tarreau { 964bd8c8fbbSWilly Tarreau return my_syscall4(__NR_reboot, magic1, magic2, cmd, arg); 965bd8c8fbbSWilly Tarreau } 966bd8c8fbbSWilly Tarreau 967bd8c8fbbSWilly Tarreau static __attribute__((unused)) 968bd8c8fbbSWilly Tarreau int reboot(int cmd) 969bd8c8fbbSWilly Tarreau { 970bd8c8fbbSWilly Tarreau int ret = sys_reboot(LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2, cmd, 0); 971bd8c8fbbSWilly Tarreau 972bd8c8fbbSWilly Tarreau if (ret < 0) { 973bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 974bd8c8fbbSWilly Tarreau ret = -1; 975bd8c8fbbSWilly Tarreau } 976bd8c8fbbSWilly Tarreau return ret; 977bd8c8fbbSWilly Tarreau } 978bd8c8fbbSWilly Tarreau 979bd8c8fbbSWilly Tarreau 980bd8c8fbbSWilly Tarreau /* 981bd8c8fbbSWilly Tarreau * int sched_yield(void); 982bd8c8fbbSWilly Tarreau */ 983bd8c8fbbSWilly Tarreau 984bd8c8fbbSWilly Tarreau static __attribute__((unused)) 985bd8c8fbbSWilly Tarreau int sys_sched_yield(void) 986bd8c8fbbSWilly Tarreau { 987bd8c8fbbSWilly Tarreau return my_syscall0(__NR_sched_yield); 988bd8c8fbbSWilly Tarreau } 989bd8c8fbbSWilly Tarreau 990bd8c8fbbSWilly Tarreau static __attribute__((unused)) 991bd8c8fbbSWilly Tarreau int sched_yield(void) 992bd8c8fbbSWilly Tarreau { 993bd8c8fbbSWilly Tarreau int ret = sys_sched_yield(); 994bd8c8fbbSWilly Tarreau 995bd8c8fbbSWilly Tarreau if (ret < 0) { 996bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 997bd8c8fbbSWilly Tarreau ret = -1; 998bd8c8fbbSWilly Tarreau } 999bd8c8fbbSWilly Tarreau return ret; 1000bd8c8fbbSWilly Tarreau } 1001bd8c8fbbSWilly Tarreau 1002bd8c8fbbSWilly Tarreau 1003bd8c8fbbSWilly Tarreau /* 1004bd8c8fbbSWilly Tarreau * int select(int nfds, fd_set *read_fds, fd_set *write_fds, 1005bd8c8fbbSWilly Tarreau * fd_set *except_fds, struct timeval *timeout); 1006bd8c8fbbSWilly Tarreau */ 1007bd8c8fbbSWilly Tarreau 1008bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1009bd8c8fbbSWilly Tarreau int sys_select(int nfds, fd_set *rfds, fd_set *wfds, fd_set *efds, struct timeval *timeout) 1010bd8c8fbbSWilly Tarreau { 1011bd8c8fbbSWilly Tarreau #if defined(__ARCH_WANT_SYS_OLD_SELECT) && !defined(__NR__newselect) 1012bd8c8fbbSWilly Tarreau struct sel_arg_struct { 1013bd8c8fbbSWilly Tarreau unsigned long n; 1014bd8c8fbbSWilly Tarreau fd_set *r, *w, *e; 1015bd8c8fbbSWilly Tarreau struct timeval *t; 1016bd8c8fbbSWilly Tarreau } arg = { .n = nfds, .r = rfds, .w = wfds, .e = efds, .t = timeout }; 1017bd8c8fbbSWilly Tarreau return my_syscall1(__NR_select, &arg); 1018bd8c8fbbSWilly Tarreau #elif defined(__ARCH_WANT_SYS_PSELECT6) && defined(__NR_pselect6) 1019bd8c8fbbSWilly Tarreau struct timespec t; 1020bd8c8fbbSWilly Tarreau 1021bd8c8fbbSWilly Tarreau if (timeout) { 1022bd8c8fbbSWilly Tarreau t.tv_sec = timeout->tv_sec; 1023bd8c8fbbSWilly Tarreau t.tv_nsec = timeout->tv_usec * 1000; 1024bd8c8fbbSWilly Tarreau } 1025bd8c8fbbSWilly Tarreau return my_syscall6(__NR_pselect6, nfds, rfds, wfds, efds, timeout ? &t : NULL, NULL); 1026bd8c8fbbSWilly Tarreau #elif defined(__NR__newselect) || defined(__NR_select) 1027bd8c8fbbSWilly Tarreau #ifndef __NR__newselect 1028bd8c8fbbSWilly Tarreau #define __NR__newselect __NR_select 1029bd8c8fbbSWilly Tarreau #endif 1030bd8c8fbbSWilly Tarreau return my_syscall5(__NR__newselect, nfds, rfds, wfds, efds, timeout); 1031bd8c8fbbSWilly Tarreau #else 1032bd8c8fbbSWilly Tarreau #error None of __NR_select, __NR_pselect6, nor __NR__newselect defined, cannot implement sys_select() 1033bd8c8fbbSWilly Tarreau #endif 1034bd8c8fbbSWilly Tarreau } 1035bd8c8fbbSWilly Tarreau 1036bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1037bd8c8fbbSWilly Tarreau int select(int nfds, fd_set *rfds, fd_set *wfds, fd_set *efds, struct timeval *timeout) 1038bd8c8fbbSWilly Tarreau { 1039bd8c8fbbSWilly Tarreau int ret = sys_select(nfds, rfds, wfds, efds, timeout); 1040bd8c8fbbSWilly Tarreau 1041bd8c8fbbSWilly Tarreau if (ret < 0) { 1042bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1043bd8c8fbbSWilly Tarreau ret = -1; 1044bd8c8fbbSWilly Tarreau } 1045bd8c8fbbSWilly Tarreau return ret; 1046bd8c8fbbSWilly Tarreau } 1047bd8c8fbbSWilly Tarreau 1048bd8c8fbbSWilly Tarreau 1049bd8c8fbbSWilly Tarreau /* 1050bd8c8fbbSWilly Tarreau * int setpgid(pid_t pid, pid_t pgid); 1051bd8c8fbbSWilly Tarreau */ 1052bd8c8fbbSWilly Tarreau 1053bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1054bd8c8fbbSWilly Tarreau int sys_setpgid(pid_t pid, pid_t pgid) 1055bd8c8fbbSWilly Tarreau { 1056bd8c8fbbSWilly Tarreau return my_syscall2(__NR_setpgid, pid, pgid); 1057bd8c8fbbSWilly Tarreau } 1058bd8c8fbbSWilly Tarreau 1059bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1060bd8c8fbbSWilly Tarreau int setpgid(pid_t pid, pid_t pgid) 1061bd8c8fbbSWilly Tarreau { 1062bd8c8fbbSWilly Tarreau int ret = sys_setpgid(pid, pgid); 1063bd8c8fbbSWilly Tarreau 1064bd8c8fbbSWilly Tarreau if (ret < 0) { 1065bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1066bd8c8fbbSWilly Tarreau ret = -1; 1067bd8c8fbbSWilly Tarreau } 1068bd8c8fbbSWilly Tarreau return ret; 1069bd8c8fbbSWilly Tarreau } 1070bd8c8fbbSWilly Tarreau 1071bd8c8fbbSWilly Tarreau 1072bd8c8fbbSWilly Tarreau /* 1073bd8c8fbbSWilly Tarreau * pid_t setsid(void); 1074bd8c8fbbSWilly Tarreau */ 1075bd8c8fbbSWilly Tarreau 1076bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1077bd8c8fbbSWilly Tarreau pid_t sys_setsid(void) 1078bd8c8fbbSWilly Tarreau { 1079bd8c8fbbSWilly Tarreau return my_syscall0(__NR_setsid); 1080bd8c8fbbSWilly Tarreau } 1081bd8c8fbbSWilly Tarreau 1082bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1083bd8c8fbbSWilly Tarreau pid_t setsid(void) 1084bd8c8fbbSWilly Tarreau { 1085bd8c8fbbSWilly Tarreau pid_t ret = sys_setsid(); 1086bd8c8fbbSWilly Tarreau 1087bd8c8fbbSWilly Tarreau if (ret < 0) { 1088bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1089bd8c8fbbSWilly Tarreau ret = -1; 1090bd8c8fbbSWilly Tarreau } 1091bd8c8fbbSWilly Tarreau return ret; 1092bd8c8fbbSWilly Tarreau } 1093bd8c8fbbSWilly Tarreau 1094b551cb7dSFeiyang Chen #if defined(__NR_statx) 1095b551cb7dSFeiyang Chen /* 1096b551cb7dSFeiyang Chen * int statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf); 1097b551cb7dSFeiyang Chen */ 1098b551cb7dSFeiyang Chen 1099b551cb7dSFeiyang Chen static __attribute__((unused)) 1100b551cb7dSFeiyang Chen int sys_statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf) 1101b551cb7dSFeiyang Chen { 1102b551cb7dSFeiyang Chen return my_syscall5(__NR_statx, fd, path, flags, mask, buf); 1103b551cb7dSFeiyang Chen } 1104b551cb7dSFeiyang Chen 1105b551cb7dSFeiyang Chen static __attribute__((unused)) 1106b551cb7dSFeiyang Chen int statx(int fd, const char *path, int flags, unsigned int mask, struct statx *buf) 1107b551cb7dSFeiyang Chen { 1108b551cb7dSFeiyang Chen int ret = sys_statx(fd, path, flags, mask, buf); 1109b551cb7dSFeiyang Chen 1110b551cb7dSFeiyang Chen if (ret < 0) { 1111b551cb7dSFeiyang Chen SET_ERRNO(-ret); 1112b551cb7dSFeiyang Chen ret = -1; 1113b551cb7dSFeiyang Chen } 1114b551cb7dSFeiyang Chen return ret; 1115b551cb7dSFeiyang Chen } 1116b551cb7dSFeiyang Chen #endif 1117bd8c8fbbSWilly Tarreau 1118bd8c8fbbSWilly Tarreau /* 1119bd8c8fbbSWilly Tarreau * int stat(const char *path, struct stat *buf); 1120bd8c8fbbSWilly Tarreau * Warning: the struct stat's layout is arch-dependent. 1121bd8c8fbbSWilly Tarreau */ 1122bd8c8fbbSWilly Tarreau 1123b551cb7dSFeiyang Chen #if defined(__NR_statx) && !defined(__NR_newfstatat) && !defined(__NR_stat) 1124b551cb7dSFeiyang Chen /* 1125b551cb7dSFeiyang Chen * Maybe we can just use statx() when available for all architectures? 1126b551cb7dSFeiyang Chen */ 1127b551cb7dSFeiyang Chen static __attribute__((unused)) 1128b551cb7dSFeiyang Chen int sys_stat(const char *path, struct stat *buf) 1129b551cb7dSFeiyang Chen { 1130b551cb7dSFeiyang Chen struct statx statx; 1131b551cb7dSFeiyang Chen long ret; 1132b551cb7dSFeiyang Chen 1133b551cb7dSFeiyang Chen ret = sys_statx(AT_FDCWD, path, AT_NO_AUTOMOUNT, STATX_BASIC_STATS, &statx); 1134b551cb7dSFeiyang Chen buf->st_dev = ((statx.stx_dev_minor & 0xff) 1135b551cb7dSFeiyang Chen | (statx.stx_dev_major << 8) 1136b551cb7dSFeiyang Chen | ((statx.stx_dev_minor & ~0xff) << 12)); 1137b551cb7dSFeiyang Chen buf->st_ino = statx.stx_ino; 1138b551cb7dSFeiyang Chen buf->st_mode = statx.stx_mode; 1139b551cb7dSFeiyang Chen buf->st_nlink = statx.stx_nlink; 1140b551cb7dSFeiyang Chen buf->st_uid = statx.stx_uid; 1141b551cb7dSFeiyang Chen buf->st_gid = statx.stx_gid; 1142b551cb7dSFeiyang Chen buf->st_rdev = ((statx.stx_rdev_minor & 0xff) 1143b551cb7dSFeiyang Chen | (statx.stx_rdev_major << 8) 1144b551cb7dSFeiyang Chen | ((statx.stx_rdev_minor & ~0xff) << 12)); 1145b551cb7dSFeiyang Chen buf->st_size = statx.stx_size; 1146b551cb7dSFeiyang Chen buf->st_blksize = statx.stx_blksize; 1147b551cb7dSFeiyang Chen buf->st_blocks = statx.stx_blocks; 1148b551cb7dSFeiyang Chen buf->st_atime = statx.stx_atime.tv_sec; 1149b551cb7dSFeiyang Chen buf->st_mtime = statx.stx_mtime.tv_sec; 1150b551cb7dSFeiyang Chen buf->st_ctime = statx.stx_ctime.tv_sec; 1151b551cb7dSFeiyang Chen return ret; 1152b551cb7dSFeiyang Chen } 1153b551cb7dSFeiyang Chen #else 1154bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1155bd8c8fbbSWilly Tarreau int sys_stat(const char *path, struct stat *buf) 1156bd8c8fbbSWilly Tarreau { 1157bd8c8fbbSWilly Tarreau struct sys_stat_struct stat; 1158bd8c8fbbSWilly Tarreau long ret; 1159bd8c8fbbSWilly Tarreau 1160bd8c8fbbSWilly Tarreau #ifdef __NR_newfstatat 1161bd8c8fbbSWilly Tarreau /* only solution for arm64 */ 1162bd8c8fbbSWilly Tarreau ret = my_syscall4(__NR_newfstatat, AT_FDCWD, path, &stat, 0); 1163bd8c8fbbSWilly Tarreau #elif defined(__NR_stat) 1164bd8c8fbbSWilly Tarreau ret = my_syscall2(__NR_stat, path, &stat); 1165bd8c8fbbSWilly Tarreau #else 1166bd8c8fbbSWilly Tarreau #error Neither __NR_newfstatat nor __NR_stat defined, cannot implement sys_stat() 1167bd8c8fbbSWilly Tarreau #endif 1168bd8c8fbbSWilly Tarreau buf->st_dev = stat.st_dev; 1169bd8c8fbbSWilly Tarreau buf->st_ino = stat.st_ino; 1170bd8c8fbbSWilly Tarreau buf->st_mode = stat.st_mode; 1171bd8c8fbbSWilly Tarreau buf->st_nlink = stat.st_nlink; 1172bd8c8fbbSWilly Tarreau buf->st_uid = stat.st_uid; 1173bd8c8fbbSWilly Tarreau buf->st_gid = stat.st_gid; 1174bd8c8fbbSWilly Tarreau buf->st_rdev = stat.st_rdev; 1175bd8c8fbbSWilly Tarreau buf->st_size = stat.st_size; 1176bd8c8fbbSWilly Tarreau buf->st_blksize = stat.st_blksize; 1177bd8c8fbbSWilly Tarreau buf->st_blocks = stat.st_blocks; 1178bd8c8fbbSWilly Tarreau buf->st_atime = stat.st_atime; 1179bd8c8fbbSWilly Tarreau buf->st_mtime = stat.st_mtime; 1180bd8c8fbbSWilly Tarreau buf->st_ctime = stat.st_ctime; 1181bd8c8fbbSWilly Tarreau return ret; 1182bd8c8fbbSWilly Tarreau } 1183b551cb7dSFeiyang Chen #endif 1184bd8c8fbbSWilly Tarreau 1185bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1186bd8c8fbbSWilly Tarreau int stat(const char *path, struct stat *buf) 1187bd8c8fbbSWilly Tarreau { 1188bd8c8fbbSWilly Tarreau int ret = sys_stat(path, buf); 1189bd8c8fbbSWilly Tarreau 1190bd8c8fbbSWilly Tarreau if (ret < 0) { 1191bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1192bd8c8fbbSWilly Tarreau ret = -1; 1193bd8c8fbbSWilly Tarreau } 1194bd8c8fbbSWilly Tarreau return ret; 1195bd8c8fbbSWilly Tarreau } 1196bd8c8fbbSWilly Tarreau 1197bd8c8fbbSWilly Tarreau 1198bd8c8fbbSWilly Tarreau /* 1199bd8c8fbbSWilly Tarreau * int symlink(const char *old, const char *new); 1200bd8c8fbbSWilly Tarreau */ 1201bd8c8fbbSWilly Tarreau 1202bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1203bd8c8fbbSWilly Tarreau int sys_symlink(const char *old, const char *new) 1204bd8c8fbbSWilly Tarreau { 1205bd8c8fbbSWilly Tarreau #ifdef __NR_symlinkat 1206bd8c8fbbSWilly Tarreau return my_syscall3(__NR_symlinkat, old, AT_FDCWD, new); 1207bd8c8fbbSWilly Tarreau #elif defined(__NR_symlink) 1208bd8c8fbbSWilly Tarreau return my_syscall2(__NR_symlink, old, new); 1209bd8c8fbbSWilly Tarreau #else 1210bd8c8fbbSWilly Tarreau #error Neither __NR_symlinkat nor __NR_symlink defined, cannot implement sys_symlink() 1211bd8c8fbbSWilly Tarreau #endif 1212bd8c8fbbSWilly Tarreau } 1213bd8c8fbbSWilly Tarreau 1214bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1215bd8c8fbbSWilly Tarreau int symlink(const char *old, const char *new) 1216bd8c8fbbSWilly Tarreau { 1217bd8c8fbbSWilly Tarreau int ret = sys_symlink(old, new); 1218bd8c8fbbSWilly Tarreau 1219bd8c8fbbSWilly Tarreau if (ret < 0) { 1220bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1221bd8c8fbbSWilly Tarreau ret = -1; 1222bd8c8fbbSWilly Tarreau } 1223bd8c8fbbSWilly Tarreau return ret; 1224bd8c8fbbSWilly Tarreau } 1225bd8c8fbbSWilly Tarreau 1226bd8c8fbbSWilly Tarreau 1227bd8c8fbbSWilly Tarreau /* 1228bd8c8fbbSWilly Tarreau * mode_t umask(mode_t mode); 1229bd8c8fbbSWilly Tarreau */ 1230bd8c8fbbSWilly Tarreau 1231bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1232bd8c8fbbSWilly Tarreau mode_t sys_umask(mode_t mode) 1233bd8c8fbbSWilly Tarreau { 1234bd8c8fbbSWilly Tarreau return my_syscall1(__NR_umask, mode); 1235bd8c8fbbSWilly Tarreau } 1236bd8c8fbbSWilly Tarreau 1237bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1238bd8c8fbbSWilly Tarreau mode_t umask(mode_t mode) 1239bd8c8fbbSWilly Tarreau { 1240bd8c8fbbSWilly Tarreau return sys_umask(mode); 1241bd8c8fbbSWilly Tarreau } 1242bd8c8fbbSWilly Tarreau 1243bd8c8fbbSWilly Tarreau 1244bd8c8fbbSWilly Tarreau /* 1245bd8c8fbbSWilly Tarreau * int umount2(const char *path, int flags); 1246bd8c8fbbSWilly Tarreau */ 1247bd8c8fbbSWilly Tarreau 1248bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1249bd8c8fbbSWilly Tarreau int sys_umount2(const char *path, int flags) 1250bd8c8fbbSWilly Tarreau { 1251bd8c8fbbSWilly Tarreau return my_syscall2(__NR_umount2, path, flags); 1252bd8c8fbbSWilly Tarreau } 1253bd8c8fbbSWilly Tarreau 1254bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1255bd8c8fbbSWilly Tarreau int umount2(const char *path, int flags) 1256bd8c8fbbSWilly Tarreau { 1257bd8c8fbbSWilly Tarreau int ret = sys_umount2(path, flags); 1258bd8c8fbbSWilly Tarreau 1259bd8c8fbbSWilly Tarreau if (ret < 0) { 1260bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1261bd8c8fbbSWilly Tarreau ret = -1; 1262bd8c8fbbSWilly Tarreau } 1263bd8c8fbbSWilly Tarreau return ret; 1264bd8c8fbbSWilly Tarreau } 1265bd8c8fbbSWilly Tarreau 1266bd8c8fbbSWilly Tarreau 1267bd8c8fbbSWilly Tarreau /* 1268bd8c8fbbSWilly Tarreau * int unlink(const char *path); 1269bd8c8fbbSWilly Tarreau */ 1270bd8c8fbbSWilly Tarreau 1271bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1272bd8c8fbbSWilly Tarreau int sys_unlink(const char *path) 1273bd8c8fbbSWilly Tarreau { 1274bd8c8fbbSWilly Tarreau #ifdef __NR_unlinkat 1275bd8c8fbbSWilly Tarreau return my_syscall3(__NR_unlinkat, AT_FDCWD, path, 0); 1276bd8c8fbbSWilly Tarreau #elif defined(__NR_unlink) 1277bd8c8fbbSWilly Tarreau return my_syscall1(__NR_unlink, path); 1278bd8c8fbbSWilly Tarreau #else 1279bd8c8fbbSWilly Tarreau #error Neither __NR_unlinkat nor __NR_unlink defined, cannot implement sys_unlink() 1280bd8c8fbbSWilly Tarreau #endif 1281bd8c8fbbSWilly Tarreau } 1282bd8c8fbbSWilly Tarreau 1283bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1284bd8c8fbbSWilly Tarreau int unlink(const char *path) 1285bd8c8fbbSWilly Tarreau { 1286bd8c8fbbSWilly Tarreau int ret = sys_unlink(path); 1287bd8c8fbbSWilly Tarreau 1288bd8c8fbbSWilly Tarreau if (ret < 0) { 1289bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1290bd8c8fbbSWilly Tarreau ret = -1; 1291bd8c8fbbSWilly Tarreau } 1292bd8c8fbbSWilly Tarreau return ret; 1293bd8c8fbbSWilly Tarreau } 1294bd8c8fbbSWilly Tarreau 1295bd8c8fbbSWilly Tarreau 1296bd8c8fbbSWilly Tarreau /* 1297bd8c8fbbSWilly Tarreau * pid_t wait(int *status); 1298bd8c8fbbSWilly Tarreau * pid_t wait4(pid_t pid, int *status, int options, struct rusage *rusage); 1299bd8c8fbbSWilly Tarreau * pid_t waitpid(pid_t pid, int *status, int options); 1300bd8c8fbbSWilly Tarreau */ 1301bd8c8fbbSWilly Tarreau 1302bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1303bd8c8fbbSWilly Tarreau pid_t sys_wait4(pid_t pid, int *status, int options, struct rusage *rusage) 1304bd8c8fbbSWilly Tarreau { 1305bd8c8fbbSWilly Tarreau return my_syscall4(__NR_wait4, pid, status, options, rusage); 1306bd8c8fbbSWilly Tarreau } 1307bd8c8fbbSWilly Tarreau 1308bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1309bd8c8fbbSWilly Tarreau pid_t wait(int *status) 1310bd8c8fbbSWilly Tarreau { 1311bd8c8fbbSWilly Tarreau pid_t ret = sys_wait4(-1, status, 0, NULL); 1312bd8c8fbbSWilly Tarreau 1313bd8c8fbbSWilly Tarreau if (ret < 0) { 1314bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1315bd8c8fbbSWilly Tarreau ret = -1; 1316bd8c8fbbSWilly Tarreau } 1317bd8c8fbbSWilly Tarreau return ret; 1318bd8c8fbbSWilly Tarreau } 1319bd8c8fbbSWilly Tarreau 1320bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1321bd8c8fbbSWilly Tarreau pid_t wait4(pid_t pid, int *status, int options, struct rusage *rusage) 1322bd8c8fbbSWilly Tarreau { 1323bd8c8fbbSWilly Tarreau pid_t ret = sys_wait4(pid, status, options, rusage); 1324bd8c8fbbSWilly Tarreau 1325bd8c8fbbSWilly Tarreau if (ret < 0) { 1326bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1327bd8c8fbbSWilly Tarreau ret = -1; 1328bd8c8fbbSWilly Tarreau } 1329bd8c8fbbSWilly Tarreau return ret; 1330bd8c8fbbSWilly Tarreau } 1331bd8c8fbbSWilly Tarreau 1332bd8c8fbbSWilly Tarreau 1333bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1334bd8c8fbbSWilly Tarreau pid_t waitpid(pid_t pid, int *status, int options) 1335bd8c8fbbSWilly Tarreau { 1336bd8c8fbbSWilly Tarreau pid_t ret = sys_wait4(pid, status, options, NULL); 1337bd8c8fbbSWilly Tarreau 1338bd8c8fbbSWilly Tarreau if (ret < 0) { 1339bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1340bd8c8fbbSWilly Tarreau ret = -1; 1341bd8c8fbbSWilly Tarreau } 1342bd8c8fbbSWilly Tarreau return ret; 1343bd8c8fbbSWilly Tarreau } 1344bd8c8fbbSWilly Tarreau 1345bd8c8fbbSWilly Tarreau 1346bd8c8fbbSWilly Tarreau /* 1347bd8c8fbbSWilly Tarreau * ssize_t write(int fd, const void *buf, size_t count); 1348bd8c8fbbSWilly Tarreau */ 1349bd8c8fbbSWilly Tarreau 1350bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1351bd8c8fbbSWilly Tarreau ssize_t sys_write(int fd, const void *buf, size_t count) 1352bd8c8fbbSWilly Tarreau { 1353bd8c8fbbSWilly Tarreau return my_syscall3(__NR_write, fd, buf, count); 1354bd8c8fbbSWilly Tarreau } 1355bd8c8fbbSWilly Tarreau 1356bd8c8fbbSWilly Tarreau static __attribute__((unused)) 1357bd8c8fbbSWilly Tarreau ssize_t write(int fd, const void *buf, size_t count) 1358bd8c8fbbSWilly Tarreau { 1359bd8c8fbbSWilly Tarreau ssize_t ret = sys_write(fd, buf, count); 1360bd8c8fbbSWilly Tarreau 1361bd8c8fbbSWilly Tarreau if (ret < 0) { 1362bd8c8fbbSWilly Tarreau SET_ERRNO(-ret); 1363bd8c8fbbSWilly Tarreau ret = -1; 1364bd8c8fbbSWilly Tarreau } 1365bd8c8fbbSWilly Tarreau return ret; 1366bd8c8fbbSWilly Tarreau } 1367bd8c8fbbSWilly Tarreau 1368*e8842cf0SThomas Weißschuh 1369*e8842cf0SThomas Weißschuh /* 1370*e8842cf0SThomas Weißschuh * int memfd_create(const char *name, unsigned int flags); 1371*e8842cf0SThomas Weißschuh */ 1372*e8842cf0SThomas Weißschuh 1373*e8842cf0SThomas Weißschuh static __attribute__((unused)) 1374*e8842cf0SThomas Weißschuh int sys_memfd_create(const char *name, unsigned int flags) 1375*e8842cf0SThomas Weißschuh { 1376*e8842cf0SThomas Weißschuh return my_syscall2(__NR_memfd_create, name, flags); 1377*e8842cf0SThomas Weißschuh } 1378*e8842cf0SThomas Weißschuh 1379*e8842cf0SThomas Weißschuh static __attribute__((unused)) 1380*e8842cf0SThomas Weißschuh int memfd_create(const char *name, unsigned int flags) 1381*e8842cf0SThomas Weißschuh { 1382*e8842cf0SThomas Weißschuh ssize_t ret = sys_memfd_create(name, flags); 1383*e8842cf0SThomas Weißschuh 1384*e8842cf0SThomas Weißschuh if (ret < 0) { 1385*e8842cf0SThomas Weißschuh SET_ERRNO(-ret); 1386*e8842cf0SThomas Weißschuh ret = -1; 1387*e8842cf0SThomas Weißschuh } 1388*e8842cf0SThomas Weißschuh return ret; 1389*e8842cf0SThomas Weißschuh } 1390*e8842cf0SThomas Weißschuh 139155abdd1fSWilly Tarreau /* make sure to include all global symbols */ 139255abdd1fSWilly Tarreau #include "nolibc.h" 1393bd8c8fbbSWilly Tarreau 1394bd8c8fbbSWilly Tarreau #endif /* _NOLIBC_SYS_H */ 1395