877ec6d904
Let the kernel keep pthread_internal_t::tid updated, including across forks and for the main thread. This then lets us fix pthread_join to only return after the thread has really exited. Also fix the thread attributes of the main thread so we don't unmap the main thread's stack (which is really owned by the dynamic linker and contains things like environment variables), which fixes crashes when joining with an exited main thread and also fixes problems reported publicly with accessing environment variables after the main thread exits (for which I've added a new unit test). In passing I also fixed a bug where if the clone(2) inside pthread_create(3) fails, we'd unmap the child's stack and TLS (which contains the mutex) and then try to unlock the mutex. Boom! It wasn't until after I'd uploaded the fix for this that I came across a new public bug reporting this exact failure. Bug: 8206355 Bug: 11693195 Bug: https://code.google.com/p/android/issues/detail?id=57421 Bug: https://code.google.com/p/android/issues/detail?id=62392 Change-Id: I2af9cf6e8ae510a67256ad93cad891794ed0580b
307 lines
16 KiB
Text
307 lines
16 KiB
Text
# This file is used to automatically generate bionic's system call stubs.
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#
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# Each non-blank, non-comment line has the following format:
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#
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# return_type func_name[|alias_list][:syscall_name[:socketcall_id]]([parameter_list]) arch_list
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#
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# where:
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# arch_list ::= "all" | arch+
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# arch ::= "aarch64" | "arm" | "mips" | "x86" | "x86_64"
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#
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# Note:
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# - syscall_name corresponds to the name of the syscall, which may differ from
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# the exported function name (example: the exit syscall is implemented by the _exit()
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# function, which is not the same as the standard C exit() function which calls it)
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#
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# - alias_list is optional comma separated list of function aliases.
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#
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# - The call_id parameter, given that func_name and syscall_name have
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# been provided, allows the user to specify dispatch style syscalls.
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# For example, socket() syscall on i386 actually becomes:
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# socketcall(__NR_socket, 1, *(rest of args on stack)).
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#
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# - Each parameter type is assumed to be stored in 32 bits.
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#
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# This file is processed by a python script named gensyscalls.py.
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int execve(const char*, char* const*, char* const*) all
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uid_t getuid:getuid32() arm,x86
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uid_t getuid:getuid() aarch64,mips,x86_64
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gid_t getgid:getgid32() arm,x86
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gid_t getgid:getgid() aarch64,mips,x86_64
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uid_t geteuid:geteuid32() arm,x86
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uid_t geteuid:geteuid() aarch64,mips,x86_64
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gid_t getegid:getegid32() arm,x86
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gid_t getegid:getegid() aarch64,mips,x86_64
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uid_t getresuid:getresuid32(uid_t* ruid, uid_t* euid, uid_t* suid) arm,x86
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uid_t getresuid:getresuid(uid_t* ruid, uid_t* euid, uid_t* suid) aarch64,mips,x86_64
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gid_t getresgid:getresgid32(gid_t* rgid, gid_t* egid, gid_t* sgid) arm,x86
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gid_t getresgid:getresgid(gid_t* rgid, gid_t* egid, gid_t* sgid) aarch64,mips,x86_64
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pid_t gettid() all
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ssize_t readahead(int, off64_t, size_t) all
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int getgroups:getgroups32(int, gid_t*) arm,x86
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int getgroups:getgroups(int, gid_t*) aarch64,mips,x86_64
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pid_t getpgid(pid_t) all
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pid_t getppid() all
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pid_t getsid(pid_t) all
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pid_t setsid() all
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int setgid:setgid32(gid_t) arm,x86
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int setgid:setgid(gid_t) aarch64,mips,x86_64
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int setuid:setuid32(uid_t) arm,x86
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int setuid:setuid(uid_t) aarch64,mips,x86_64
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int setreuid:setreuid32(uid_t, uid_t) arm,x86
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int setreuid:setreuid(uid_t, uid_t) aarch64,mips,x86_64
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int setresuid:setresuid32(uid_t, uid_t, uid_t) arm,x86
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int setresuid:setresuid(uid_t, uid_t, uid_t) aarch64,mips,x86_64
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int setresgid:setresgid32(gid_t, gid_t, gid_t) arm,x86
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int setresgid:setresgid(gid_t, gid_t, gid_t) aarch64,mips,x86_64
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void* __brk:brk(void*) all
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# See comments in kill.S to understand why we don't generate ARM stubs for kill/tkill/tgkill.
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int kill(pid_t, int) aarch64,mips,x86,x86_64
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int tkill(pid_t tid, int sig) aarch64,mips,x86,x86_64
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int tgkill(pid_t tgid, pid_t tid, int sig) aarch64,mips,x86,x86_64
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int __ptrace:ptrace(int request, int pid, void* addr, void* data) all
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int __set_thread_area:set_thread_area(void* user_desc) mips,x86
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int __getpriority:getpriority(int, int) all
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int setpriority(int, int, int) all
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int setrlimit(int resource, const struct rlimit* rlp) all
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int getrlimit:ugetrlimit(int resource, struct rlimit* rlp) arm,x86
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int getrlimit:getrlimit(int resource, struct rlimit* rlp) aarch64,mips,x86_64
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int getrusage(int who, struct rusage* r_usage) all
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int setgroups:setgroups32(int, const gid_t*) arm,x86
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int setgroups:setgroups(int, const gid_t*) aarch64,mips,x86_64
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int setpgid(pid_t, pid_t) all
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pid_t vfork(void) arm
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int setregid:setregid32(gid_t, gid_t) arm,x86
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int setregid:setregid(gid_t, gid_t) aarch64,mips,x86_64
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int chroot(const char*) all
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# IMPORTANT: Even though <sys/prctl.h> declares prctl(int, ...), the syscall stub must take 6 arguments
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# to match the kernel implementation.
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int prctl(int option, unsigned int arg2, unsigned int arg3, unsigned int arg4, unsigned int arg5) all
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long __arch_prctl:arch_prctl(int, unsigned long) x86_64
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int capget(cap_user_header_t header, cap_user_data_t data) all
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int capset(cap_user_header_t header, const cap_user_data_t data) all
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int sigaltstack(const stack_t*, stack_t*) all
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int acct(const char* filepath) all
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# file descriptors
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ssize_t read(int, void*, size_t) all
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ssize_t write(int, const void*, size_t) all
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ssize_t pread64(int, void*, size_t, off64_t) arm,mips,x86
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ssize_t pread64|pread(int, void*, size_t, off_t) aarch64,x86_64
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ssize_t pwrite64(int, void*, size_t, off64_t) arm,mips,x86
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ssize_t pwrite64|pwrite(int, void*, size_t, off_t) aarch64,x86_64
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int close(int) all
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pid_t getpid() all
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void* mmap(void*, size_t, int, int, int, long) aarch64,x86_64
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void* __mmap2:mmap2(void*, size_t, int, int, int, long) arm,mips,x86
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int munmap(void*, size_t) all
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void* mremap(void*, size_t, size_t, unsigned long) all
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int msync(const void*, size_t, int) all
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int mprotect(const void*, size_t, int) all
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int madvise(const void*, size_t, int) all
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int mlock(const void* addr, size_t len) all
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int munlock(const void* addr, size_t len) all
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int mlockall(int flags) all
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int munlockall() all
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int mincore(void* start, size_t length, unsigned char* vec) all
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int __ioctl:ioctl(int, int, void*) all
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int readv(int, const struct iovec*, int) all
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int writev(int, const struct iovec*, int) all
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int __fcntl64:fcntl64(int, int, void*) arm,mips,x86
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int fcntl(int, int, void*) aarch64,x86_64
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int flock(int, int) all
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int fchmod(int, mode_t) all
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int dup(int) all
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int pipe2(int*, int) all
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int dup3(int, int, int) all
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int getdents:getdents64(unsigned int, struct dirent*, unsigned int) all
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int fsync(int) all
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int fdatasync(int) all
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int fchown:fchown32(int, uid_t, gid_t) arm,x86
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int fchown:fchown(int, uid_t, gid_t) aarch64,mips,x86_64
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void sync(void) all
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int __fstatfs64:fstatfs64(int, size_t, struct statfs*) arm,mips,x86
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int fstatfs(int, struct statfs*) aarch64,x86_64
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int fsetxattr(int, const char*, const void*, size_t, int) all
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ssize_t fgetxattr(int, const char*, void*, size_t) all
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ssize_t flistxattr(int, char*, size_t) all
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int fremovexattr(int, const char*) all
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int __openat:openat(int, const char*, int, mode_t) all
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int faccessat(int, const char*, int, int) all
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int fchmodat(int, const char*, mode_t, int) all
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int fchownat(int, const char*, uid_t, gid_t, int) all
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int fstatat:fstatat64(int, const char*, struct stat*, int) arm,mips,x86
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int fstatat:newfstatat(int, const char*, struct stat*, int) aarch64,x86_64
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int linkat(int, const char*, int, const char*, int) all
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int mkdirat(int, const char*, mode_t) all
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int mknodat(int, const char*, mode_t, dev_t) all
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int readlinkat(int, const char*, char*, size_t) all
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int renameat(int, const char*, int, const char*) all
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int symlinkat(const char*, int, const char*) all
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int unlinkat(int, const char*, int) all
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int utimensat(int, const char*, const struct timespec times[2], int) all
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# Paired off_t/off64_t system calls. On 64-bit systems,
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# sizeof(off_t) == sizeof(off64_t), so there we emit two symbols that are
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# aliases. On 32-bit systems, we have two different system calls.
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# That means that every system call in this section should take three lines.
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off_t lseek(int, off_t, int) arm,mips,x86
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int __llseek:_llseek(int, unsigned long, unsigned long, off64_t*, int) arm,mips,x86
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off_t lseek|lseek64(int, off_t, int) aarch64,x86_64
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int ftruncate(int, off_t) arm,mips,x86
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int ftruncate64(int, off64_t) arm,mips,x86
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int ftruncate|ftruncate64(int, off_t) aarch64,x86_64
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ssize_t sendfile(int out_fd, int in_fd, off_t* offset, size_t count) arm,mips,x86
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ssize_t sendfile64(int out_fd, int in_fd, off64_t* offset, size_t count) arm,mips,x86
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ssize_t sendfile|sendfile64(int out_fd, int in_fd, off_t* offset, size_t count) aarch64,x86_64
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int truncate(const char*, off_t) arm,mips,x86
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int truncate64(const char*, off64_t) arm,mips,x86
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int truncate|truncate64(const char*, off_t) aarch64,x86_64
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# file system
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int chdir(const char*) all
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int mount(const char*, const char*, const char*, unsigned long, const void*) all
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int umount2(const char*, int) all
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int fstat:fstat64(int, struct stat*) arm,mips,x86
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int fstat(int, struct stat*) aarch64,x86_64
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int __getcwd:getcwd(char* buf, size_t size) all
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int fchdir(int) all
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int setxattr(const char*, const char*, const void*, size_t, int) all
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int lsetxattr(const char*, const char*, const void*, size_t, int) all
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ssize_t getxattr(const char*, const char*, void*, size_t) all
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ssize_t lgetxattr(const char*, const char*, void*, size_t) all
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ssize_t listxattr(const char*, char*, size_t) all
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ssize_t llistxattr(const char*, char*, size_t) all
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int removexattr(const char*, const char*) all
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int lremovexattr(const char*, const char*) all
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int __statfs64:statfs64(const char*, size_t, struct statfs*) arm,mips,x86
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int statfs(const char*, struct statfs*) aarch64,x86_64
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long unshare(unsigned long) all
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int swapon(const char*, int) all
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int swapoff(const char*) all
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# time
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int gettimeofday(struct timeval*, struct timezone*) all
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int settimeofday(const struct timeval*, const struct timezone*) all
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clock_t times(struct tms*) all
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int nanosleep(const struct timespec*, struct timespec*) all
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int clock_gettime(clockid_t clk_id, struct timespec* tp) all
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int clock_settime(clockid_t clk_id, const struct timespec* tp) all
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int clock_getres(clockid_t clk_id, struct timespec* res) all
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int clock_nanosleep(clockid_t clock_id, int flags, const struct timespec* req, struct timespec* rem) all
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int getitimer(int, const struct itimerval*) all
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int setitimer(int, const struct itimerval*, struct itimerval*) all
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int __timer_create:timer_create(clockid_t clockid, struct sigevent* evp, timer_t* timerid) all
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int __timer_settime:timer_settime(timer_t, int, const struct itimerspec*, struct itimerspec*) all
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int __timer_gettime:timer_gettime(timer_t, struct itimerspec*) all
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int __timer_getoverrun:timer_getoverrun(timer_t) all
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int __timer_delete:timer_delete(timer_t) all
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int timerfd_create(clockid_t, int) all
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int timerfd_settime(int, int, const struct itimerspec*, struct itimerspec*) all
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int timerfd_gettime(int, struct itimerspec*) all
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# signals
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int __sigaction:sigaction(int, const struct sigaction*, struct sigaction*) arm,mips,x86
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int __rt_sigaction:rt_sigaction(int, const struct sigaction*, struct sigaction*, size_t) all
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int __rt_sigpending:rt_sigpending(sigset_t*, size_t) all
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int __rt_sigprocmask:rt_sigprocmask(int, const sigset_t*, sigset_t*, size_t) all
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int __rt_sigsuspend:rt_sigsuspend(const sigset_t*, size_t) all
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int __rt_sigtimedwait:rt_sigtimedwait(const sigset_t*, struct siginfo_t*, struct timespec_t*, size_t) all
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int signalfd4(int, const sigset_t*, size_t, int) all
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# sockets
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int socket(int, int, int) aarch64,arm,mips,x86_64
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int socketpair(int, int, int, int*) aarch64,arm,mips,x86_64
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int bind(int, struct sockaddr*, int) aarch64,arm,mips,x86_64
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int connect(int, struct sockaddr*, socklen_t) aarch64,arm,mips,x86_64
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int listen(int, int) aarch64,arm,mips,x86_64
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int accept(int, struct sockaddr*, socklen_t*) aarch64,arm,mips,x86_64
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int getsockname(int, struct sockaddr*, socklen_t*) aarch64,arm,mips,x86_64
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int getpeername(int, struct sockaddr*, socklen_t*) aarch64,arm,mips,x86_64
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int sendto(int, const void*, size_t, int, const struct sockaddr*, socklen_t) aarch64,arm,mips,x86_64
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int recvfrom(int, void*, size_t, unsigned int, struct sockaddr*, socklen_t*) aarch64,arm,mips,x86_64
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int shutdown(int, int) aarch64,arm,mips,x86_64
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int setsockopt(int, int, int, const void*, socklen_t) aarch64,arm,mips,x86_64
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int getsockopt(int, int, int, void*, socklen_t*) aarch64,arm,mips,x86_64
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int sendmsg(int, const struct msghdr*, unsigned int) aarch64,arm,mips,x86_64
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int recvmsg(int, struct msghdr*, unsigned int) aarch64,arm,mips,x86_64
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# sockets for x86. These are done as an "indexed" call to socketcall syscall.
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int socket:socketcall:1(int, int, int) x86
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int bind:socketcall:2(int, struct sockaddr*, int) x86
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int connect:socketcall:3(int, struct sockaddr*, socklen_t) x86
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int listen:socketcall:4(int, int) x86
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int accept:socketcall:5(int, struct sockaddr*, socklen_t*) x86
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int getsockname:socketcall:6(int, struct sockaddr*, socklen_t*) x86
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int getpeername:socketcall:7(int, struct sockaddr*, socklen_t*) x86
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int socketpair:socketcall:8(int, int, int, int*) x86
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int sendto:socketcall:11(int, const void*, size_t, int, const struct sockaddr*, socklen_t) x86
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int recvfrom:socketcall:12(int, void*, size_t, unsigned int, struct sockaddr*, socklen_t*) x86
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int shutdown:socketcall:13(int, int) x86
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int setsockopt:socketcall:14(int, int, int, const void*, socklen_t) x86
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int getsockopt:socketcall:15(int, int, int, void*, socklen_t*) x86
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int sendmsg:socketcall:16(int, const struct msghdr*, unsigned int) x86
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int recvmsg:socketcall:17(int, struct msghdr*, unsigned int) x86
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# scheduler & real-time
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int sched_setscheduler(pid_t pid, int policy, const struct sched_param* param) all
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int sched_getscheduler(pid_t pid) all
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int sched_yield(void) all
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int sched_setparam(pid_t pid, const struct sched_param* param) all
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int sched_getparam(pid_t pid, struct sched_param* param) all
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int sched_get_priority_max(int policy) all
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int sched_get_priority_min(int policy) all
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int sched_rr_get_interval(pid_t pid, struct timespec* interval) all
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int sched_setaffinity(pid_t pid, size_t setsize, const cpu_set_t* set) all
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int __sched_getaffinity:sched_getaffinity(pid_t pid, size_t setsize, cpu_set_t* set) all
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int __getcpu:getcpu(unsigned* cpu, unsigned* node, void* unused) all
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# io priorities
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int ioprio_set(int which, int who, int ioprio) all
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int ioprio_get(int which, int who) all
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# other
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int uname(struct utsname*) all
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mode_t umask(mode_t) all
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int __reboot:reboot(int, int, int, void*) all
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int __syslog:syslog(int, char*, int) all
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int init_module(void*, unsigned long, const char*) all
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int delete_module(const char*, unsigned int) all
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int klogctl:syslog(int, char*, int) all
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int sysinfo(struct sysinfo*) all
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int personality(unsigned long) all
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long perf_event_open(struct perf_event_attr* attr_uptr, pid_t pid, int cpu, int group_fd, unsigned long flags) all
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pid_t __clone:clone(int, void*, int*, void*, int*) all
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int __set_tid_address:set_tid_address(int*) all
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int epoll_create1(int) all
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int epoll_ctl(int, int op, int, struct epoll_event*) all
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int __epoll_pwait:epoll_pwait(int, struct epoll_event*, int, int, const sigset_t*, size_t) all
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int eventfd:eventfd2(unsigned int, int) all
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void _exit:exit_group(int) all
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void __exit:exit(int) all
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int futex(void*, int, int, void*, void*, int) all
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int inotify_init1(int) all
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int inotify_add_watch(int, const char*, unsigned int) all
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int inotify_rm_watch(int, unsigned int) all
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int __pselect6:pselect6(int, fd_set*, fd_set*, fd_set*, timespec*, void*) all
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int __ppoll:ppoll(pollfd*, unsigned int, timespec*, const sigset_t*, size_t) all
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pid_t wait4(pid_t, int*, int, struct rusage*) all
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int __waitid:waitid(int, pid_t, struct siginfo_t*, int, void*) all
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# ARM-specific
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int __set_tls:__ARM_NR_set_tls(void*) arm
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int cacheflush:__ARM_NR_cacheflush(long start, long end, long flags) arm
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# MIPS-specific
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int _flush_cache:cacheflush(char* addr, const int nbytes, const int op) mips
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