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Merge "AArch64: Add support for AArch64 to the syscall interface"

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Elliott Hughes 2013-10-28 23:17:23 +00:00 committed by Gerrit Code Review
commit 93b7b81912
3 changed files with 87 additions and 55 deletions
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104
libc/SYSCALLS.TXT
View File

@ -6,7 +6,7 @@
#
# where:
# arch_list ::= "all" | arch+
# arch ::= "arm" | "mips" | "x86" | "x86_64"
# arch ::= "aarch64" | "arm" | "mips" | "x86" | "x86_64"
#
# Note:
# - syscall_name corresponds to the name of the syscall, which may differ from
@ -27,54 +27,54 @@
int execve(const char*, char* const*, char* const*) all
uid_t getuid:getuid32() arm,x86
uid_t getuid:getuid() mips,x86_64
uid_t getuid:getuid() aarch64,mips,x86_64
gid_t getgid:getgid32() arm,x86
gid_t getgid:getgid() mips,x86_64
gid_t getgid:getgid() aarch64,mips,x86_64
uid_t geteuid:geteuid32() arm,x86
uid_t geteuid:geteuid() mips,x86_64
uid_t geteuid:geteuid() aarch64,mips,x86_64
gid_t getegid:getegid32() arm,x86
gid_t getegid:getegid() mips,x86_64
gid_t getegid:getegid() aarch64,mips,x86_64
uid_t getresuid:getresuid32(uid_t* ruid, uid_t* euid, uid_t* suid) arm,x86
uid_t getresuid:getresuid(uid_t* ruid, uid_t* euid, uid_t* suid) mips,x86_64
uid_t getresuid:getresuid(uid_t* ruid, uid_t* euid, uid_t* suid) aarch64,mips,x86_64
gid_t getresgid:getresgid32(gid_t* rgid, gid_t* egid, gid_t* sgid) arm,x86
gid_t getresgid:getresgid(gid_t* rgid, gid_t* egid, gid_t* sgid) mips,x86_64
gid_t getresgid:getresgid(gid_t* rgid, gid_t* egid, gid_t* sgid) aarch64,mips,x86_64
pid_t gettid() all
ssize_t readahead(int, off64_t, size_t) all
int getgroups:getgroups32(int, gid_t*) arm,x86
int getgroups:getgroups(int, gid_t*) mips,x86_64
int getgroups:getgroups(int, gid_t*) aarch64,mips,x86_64
pid_t getpgid(pid_t) all
pid_t getppid() all
pid_t getsid(pid_t) all
pid_t setsid() all
int setgid:setgid32(gid_t) arm,x86
int setgid:setgid(gid_t) mips,x86_64
int setgid:setgid(gid_t) aarch64,mips,x86_64
int setuid:setuid32(uid_t) arm,x86
int setuid:setuid(uid_t) mips,x86_64
int setuid:setuid(uid_t) aarch64,mips,x86_64
int setreuid:setreuid32(uid_t, uid_t) arm,x86
int setreuid:setreuid(uid_t, uid_t) mips,x86_64
int setreuid:setreuid(uid_t, uid_t) aarch64,mips,x86_64
int setresuid:setresuid32(uid_t, uid_t, uid_t) arm,x86
int setresuid:setresuid(uid_t, uid_t, uid_t) mips,x86_64
int setresuid:setresuid(uid_t, uid_t, uid_t) aarch64,mips,x86_64
int setresgid:setresgid32(gid_t, gid_t, gid_t) arm,x86
int setresgid:setresgid(gid_t, gid_t, gid_t) mips,x86_64
int setresgid:setresgid(gid_t, gid_t, gid_t) aarch64,mips,x86_64
void* __brk:brk(void*) all
# See comments in kill.S to understand why we don't generate ARM stubs for kill/tkill/tgkill.
int kill(pid_t, int) mips,x86,x86_64
int tkill(pid_t tid, int sig) mips,x86,x86_64
int tgkill(pid_t tgid, pid_t tid, int sig) mips,x86,x86_64
int kill(pid_t, int) aarch64,mips,x86,x86_64
int tkill(pid_t tid, int sig) aarch64,mips,x86,x86_64
int tgkill(pid_t tgid, pid_t tid, int sig) aarch64,mips,x86,x86_64
int __ptrace:ptrace(int request, int pid, void* addr, void* data) all
int __set_thread_area:set_thread_area(void* user_desc) mips,x86
int __getpriority:getpriority(int, int) all
int setpriority(int, int, int) all
int setrlimit(int resource, const struct rlimit* rlp) all
int getrlimit:ugetrlimit(int resource, struct rlimit* rlp) arm,x86
int getrlimit:getrlimit(int resource, struct rlimit* rlp) mips,x86_64
int getrlimit:getrlimit(int resource, struct rlimit* rlp) aarch64,mips,x86_64
int getrusage(int who, struct rusage* r_usage) all
int setgroups:setgroups32(int, const gid_t*) arm,x86
int setgroups:setgroups(int, const gid_t*) mips,x86_64
int setgroups:setgroups(int, const gid_t*) aarch64,mips,x86_64
int setpgid(pid_t, pid_t) all
pid_t vfork(void) arm
int setregid:setregid32(gid_t, gid_t) arm,x86
int setregid:setregid(gid_t, gid_t) mips,x86_64
int setregid:setregid(gid_t, gid_t) aarch64,mips,x86_64
int chroot(const char*) all
# IMPORTANT: Even though <sys/prctl.h> declares prctl(int, ...), the syscall stub must take 6 arguments
# to match the kernel implementation.
@ -92,8 +92,8 @@ ssize_t pread64(int, void*, size_t, off64_t) all
ssize_t pwrite64(int, void*, size_t, off64_t) all
int close(int) all
pid_t getpid() all
void* mmap(void*, size_t, int, int, int, long) x86_64
void* __mmap2:mmap2(void*, size_t, int, int, int, long) arm,x86,mips
void* mmap(void*, size_t, int, int, int, long) aarch64,x86_64
void* __mmap2:mmap2(void*, size_t, int, int, int, long) arm,mips,x86
int munmap(void*, size_t) all
void* mremap(void*, size_t, size_t, unsigned long) all
int msync(const void*, size_t, int) all
@ -107,8 +107,8 @@ int mincore(void* start, size_t length, unsigned char* vec) all
int __ioctl:ioctl(int, int, void*) all
int readv(int, const struct iovec*, int) all
int writev(int, const struct iovec*, int) all
int __fcntl:fcntl(int, int, void*) arm,x86,mips
int fcntl(int, void*) x86_64
int __fcntl:fcntl(int, int, void*) arm,mips,x86
int fcntl(int, void*) aarch64,x86_64
int flock(int, int) all
int fchmod(int, mode_t) all
int dup(int) all
@ -118,11 +118,11 @@ int getdents:getdents64(unsigned int, struct dirent*, unsigned int) al
int fsync(int) all
int fdatasync(int) all
int fchown:fchown32(int, uid_t, gid_t) arm,x86
int fchown:fchown(int, uid_t, gid_t) mips,x86_64
int fchown:fchown(int, uid_t, gid_t) aarch64,mips,x86_64
void sync(void) all
int __fcntl64:fcntl64(int, int, void*) arm,x86,mips
int __fstatfs64:fstatfs64(int, size_t, struct statfs*) arm,x86,mips
int fstatfs(int, struct statfs*) x86_64
int __fcntl64:fcntl64(int, int, void*) arm,mips,x86
int __fstatfs64:fstatfs64(int, size_t, struct statfs*) arm,mips,x86
int fstatfs(int, struct statfs*) aarch64,x86_64
int fsetxattr(int, const char*, const void*, size_t, int) all
ssize_t fgetxattr(int, const char*, void*, size_t) all
ssize_t flistxattr(int, char*, size_t) all
@ -132,8 +132,8 @@ int __openat:openat(int, const char*, int, mode_t) all
int faccessat(int, const char*, int, int) all
int fchmodat(int, const char*, mode_t, int) all
int fchownat(int, const char*, uid_t, gid_t, int) all
int fstatat:fstatat64(int, const char*, struct stat*, int) arm,x86,mips
int fstatat:newfstatat(int, const char*, struct stat*, int) x86_64
int fstatat:fstatat64(int, const char*, struct stat*, int) arm,mips,x86
int fstatat:newfstatat(int, const char*, struct stat*, int) aarch64,x86_64
int linkat(int, const char*, int, const char*, int) all
int mkdirat(int, const char*, mode_t) all
int mknodat(int, const char*, mode_t, dev_t) all
@ -149,23 +149,23 @@ int utimensat(int, const char*, const struct timespec times[2], int) all
# That means that every system call in this section should take three lines.
off_t lseek(int, off_t, int) arm,mips,x86
int __llseek:_llseek(int, unsigned long, unsigned long, off64_t*, int) arm,mips,x86
off_t lseek|lseek64(int, off_t, int) x86_64
off_t lseek|lseek64(int, off_t, int) aarch64,x86_64
int ftruncate(int, off_t) arm,mips,x86
int ftruncate64(int, off64_t) arm,mips,x86
int ftruncate|ftruncate64(int, off_t) x86_64
int ftruncate|ftruncate64(int, off_t) aarch64,x86_64
ssize_t sendfile(int out_fd, int in_fd, off_t* offset, size_t count) arm,mips,x86
ssize_t sendfile64(int out_fd, int in_fd, off64_t* offset, size_t count) arm,mips,x86
ssize_t sendfile|sendfile64(int out_fd, int in_fd, off_t* offset, size_t count) x86_64
ssize_t sendfile|sendfile64(int out_fd, int in_fd, off_t* offset, size_t count) aarch64,x86_64
int truncate(const char*, off_t) arm,mips,x86
int truncate64(const char*, off64_t) arm,mips,x86
int truncate|truncate64(const char*, off_t) x86_64
int truncate|truncate64(const char*, off_t) aarch64,x86_64
# file system
int chdir(const char*) all
int mount(const char*, const char*, const char*, unsigned long, const void*) all
int umount2(const char*, int) all
int fstat:fstat64(int, struct stat*) arm,x86,mips
int fstat(int, struct stat*) x86_64
int fstat:fstat64(int, struct stat*) arm,mips,x86
int fstat(int, struct stat*) aarch64,x86_64
int __getcwd:getcwd(char* buf, size_t size) all
int fchdir(int) all
int setxattr(const char*, const char*, const void*, size_t, int) all
@ -176,8 +176,8 @@ ssize_t listxattr(const char*, char*, size_t) all
ssize_t llistxattr(const char*, char*, size_t) all
int removexattr(const char*, const char*) all
int lremovexattr(const char*, const char*) all
int __statfs64:statfs64(const char*, size_t, struct statfs*) arm,x86,mips
int statfs(const char*, struct statfs*) x86_64
int __statfs64:statfs64(const char*, size_t, struct statfs*) arm,mips,x86
int statfs(const char*, struct statfs*) aarch64,x86_64
long unshare(unsigned long) all
int swapon(const char*, int) all
int swapoff(const char*) all
@ -212,21 +212,21 @@ int __rt_sigtimedwait:rt_sigtimedwait(const sigset_t*, struct siginfo_t*, st
int signalfd4(int, const sigset_t*, size_t, int) all
# sockets
int socket(int, int, int) arm,mips,x86_64
int socketpair(int, int, int, int*) arm,mips,x86_64
int bind(int, struct sockaddr*, int) arm,mips,x86_64
int connect(int, struct sockaddr*, socklen_t) arm,mips,x86_64
int listen(int, int) arm,mips,x86_64
int accept(int, struct sockaddr*, socklen_t*) arm,mips,x86_64
int getsockname(int, struct sockaddr*, socklen_t*) arm,mips,x86_64
int getpeername(int, struct sockaddr*, socklen_t*) arm,mips,x86_64
int sendto(int, const void*, size_t, int, const struct sockaddr*, socklen_t) arm,mips,x86_64
int recvfrom(int, void*, size_t, unsigned int, struct sockaddr*, socklen_t*) arm,mips,x86_64
int shutdown(int, int) arm,mips,x86_64
int setsockopt(int, int, int, const void*, socklen_t) arm,mips,x86_64
int getsockopt(int, int, int, void*, socklen_t*) arm,mips,x86_64
int sendmsg(int, const struct msghdr*, unsigned int) arm,mips,x86_64
int recvmsg(int, struct msghdr*, unsigned int) arm,mips,x86_64
int socket(int, int, int) aarch64,arm,mips,x86_64
int socketpair(int, int, int, int*) aarch64,arm,mips,x86_64
int bind(int, struct sockaddr*, int) aarch64,arm,mips,x86_64
int connect(int, struct sockaddr*, socklen_t) aarch64,arm,mips,x86_64
int listen(int, int) aarch64,arm,mips,x86_64
int accept(int, struct sockaddr*, socklen_t*) aarch64,arm,mips,x86_64
int getsockname(int, struct sockaddr*, socklen_t*) aarch64,arm,mips,x86_64
int getpeername(int, struct sockaddr*, socklen_t*) aarch64,arm,mips,x86_64
int sendto(int, const void*, size_t, int, const struct sockaddr*, socklen_t) aarch64,arm,mips,x86_64
int recvfrom(int, void*, size_t, unsigned int, struct sockaddr*, socklen_t*) aarch64,arm,mips,x86_64
int shutdown(int, int) aarch64,arm,mips,x86_64
int setsockopt(int, int, int, const void*, socklen_t) aarch64,arm,mips,x86_64
int getsockopt(int, int, int, void*, socklen_t*) aarch64,arm,mips,x86_64
int sendmsg(int, const struct msghdr*, unsigned int) aarch64,arm,mips,x86_64
int recvmsg(int, struct msghdr*, unsigned int) aarch64,arm,mips,x86_64
# sockets for x86. These are done as an "indexed" call to socketcall syscall.
int socket:socketcall:1(int, int, int) x86

2
libc/tools/bionic_utils.py
View File

@ -2,7 +2,7 @@
import sys, os, commands, string
all_arches = [ "arm", "mips", "x86", "x86_64" ]
all_arches = [ "aarch64", "arm", "mips", "x86", "x86_64" ]
# basic debugging trace support
# call D_setlevel to set the verbosity level

36
libc/tools/gensyscalls.py
View File

@ -55,6 +55,29 @@ function_alias = """
"""
#
# AArch64 assembler templates for each syscall stub
#
aarch64_call = syscall_stub_header + """\
stp x29, x30, [sp, #-16]!
mov x29, sp
str x8, [sp, #-16]!
mov x8, %(__NR_name)s
svc #0
ldr x8, [sp], #16
ldp x29, x30, [sp], #16
cmn x0, #(MAX_ERRNO + 1)
cneg x0, x0, hi
b.hi __set_errno
ret
END(%(func)s)
"""
#
# ARM assembler templates for each syscall stub
#
@ -246,6 +269,10 @@ def add_footer(pointer_length, stub, syscall):
return stub
def aarch64_genstub(syscall):
return aarch64_call % syscall
def arm_eabi_genstub(syscall):
num_regs = count_arm_param_registers(syscall["params"])
if num_regs > 4:
@ -277,6 +304,7 @@ def x86_genstub(syscall):
result += x86_return % syscall
return result
def x86_genstub_socketcall(syscall):
# %ebx <--- Argument 1 - The call id of the needed vectored
# syscall (socket, bind, recv, etc)
@ -339,6 +367,9 @@ class State:
for syscall in self.syscalls:
syscall["__NR_name"] = make__NR_name(syscall["name"])
if syscall.has_key("aarch64"):
syscall["asm-aarch64"] = add_footer(64, aarch64_genstub(syscall), syscall)
if syscall.has_key("arm"):
syscall["asm-arm"] = add_footer(32, arm_eabi_genstub(syscall), syscall)
@ -357,7 +388,6 @@ class State:
if syscall.has_key("x86_64"):
syscall["asm-x86_64"] = add_footer(64, x86_64_genstub(syscall), syscall)
# Scan a Linux kernel asm/unistd.h file containing __NR_* constants
# and write out equivalent SYS_* constants for glibc source compatibility.
def scan_linux_unistd_h(self, fp, path):
@ -380,7 +410,9 @@ class State:
glibc_fp.write("#ifndef _BIONIC_GLIBC_SYSCALLS_H_\n")
glibc_fp.write("#define _BIONIC_GLIBC_SYSCALLS_H_\n")
glibc_fp.write("#if defined(__arm__)\n")
glibc_fp.write("#if defined(__aarch64__)\n")
self.scan_linux_unistd_h(glibc_fp, bionic_libc_root + "/kernel/uapi/asm-generic/unistd.h")
glibc_fp.write("#elif defined(__arm__)\n")
self.scan_linux_unistd_h(glibc_fp, bionic_libc_root + "/kernel/arch-arm/asm/unistd.h")
glibc_fp.write("#elif defined(__mips__)\n")
self.scan_linux_unistd_h(glibc_fp, bionic_libc_root + "/kernel/arch-mips/asm/unistd.h")