From e145242ea0df6b7d28fd7186e61d6840fa4bb06e Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Mon, 9 Apr 2018 12:51:42 +0200 Subject: [PATCH] syscalls/core, syscalls/x86: Clean up syscall stub naming convention Tidy the naming convention for compat syscall subs. Hints which describe the purpose of the stub go in front and receive a double underscore to denote that they are generated on-the-fly by the SYSCALL_DEFINEx() macro. For the generic case, this means (0xffffffff prefix removed): 810f08d0 t kernel_waitid # common C function (see kernel/exit.c) __do_sys_waitid # inlined helper doing the actual work # (takes original parameters as declared) 810f1aa0 T __se_sys_waitid # sign-extending C function calling inlined # helper (takes parameters of type long; # casts them to the declared type) 810f1aa0 T sys_waitid # alias to __se_sys_waitid() (taking # parameters as declared), to be included # in syscall table For x86, the naming is as follows: 810efc70 t kernel_waitid # common C function (see kernel/exit.c) __do_sys_waitid # inlined helper doing the actual work # (takes original parameters as declared) 810efd60 t __se_sys_waitid # sign-extending C function calling inlined # helper (takes parameters of type long; # casts them to the declared type) 810f1140 T __ia32_sys_waitid # IA32_EMULATION 32-bit-ptregs -> C stub, # calls __se_sys_waitid(); to be included # in syscall table 810f1110 T sys_waitid # x86 64-bit-ptregs -> C stub, calls # __se_sys_waitid(); to be included in # syscall table For x86, sys_waitid() will be re-named to __x64_sys_waitid in a follow-up patch. Suggested-by: Ingo Molnar Signed-off-by: Dominik Brodowski Cc: Al Viro Cc: Andrew Morton Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: Josh Poimboeuf Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20180409105145.5364-2-linux@dominikbrodowski.net Signed-off-by: Ingo Molnar --- arch/x86/entry/syscalls/syscall_32.tbl | 424 ++++++++++++------------- arch/x86/include/asm/syscall_wrapper.h | 35 +- include/linux/syscalls.h | 17 +- scripts/bloat-o-meter | 2 +- 4 files changed, 242 insertions(+), 236 deletions(-) diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl index 7f09a3da0b3d..539df8f6d0e1 100644 --- a/arch/x86/entry/syscalls/syscall_32.tbl +++ b/arch/x86/entry/syscalls/syscall_32.tbl @@ -4,7 +4,7 @@ # The format is: # # -# The __sys_ia32 and __compat_sys_ia32 stubs are created on-the-fly for +# The __ia32_sys and __compat_sys_ia32 stubs are created on-the-fly for # sys_*() system calls and compat_sys_*() compat system calls if # IA32_EMULATION is defined, and expect struct pt_regs *regs as their only # parameter. @@ -12,284 +12,284 @@ # The abi is always "i386" for this file. # 0 i386 restart_syscall sys_restart_syscall -1 i386 exit sys_exit __sys_ia32_exit +1 i386 exit sys_exit __ia32_sys_exit 2 i386 fork sys_fork -3 i386 read sys_read __sys_ia32_read -4 i386 write sys_write __sys_ia32_write +3 i386 read sys_read __ia32_sys_read +4 i386 write sys_write __ia32_sys_write 5 i386 open sys_open __compat_sys_ia32_open -6 i386 close sys_close __sys_ia32_close -7 i386 waitpid sys_waitpid __sys_ia32_waitpid -8 i386 creat sys_creat __sys_ia32_creat -9 i386 link sys_link __sys_ia32_link -10 i386 unlink sys_unlink __sys_ia32_unlink +6 i386 close sys_close __ia32_sys_close +7 i386 waitpid sys_waitpid __ia32_sys_waitpid +8 i386 creat sys_creat __ia32_sys_creat +9 i386 link sys_link __ia32_sys_link +10 i386 unlink sys_unlink __ia32_sys_unlink 11 i386 execve sys_execve __compat_sys_ia32_execve -12 i386 chdir sys_chdir __sys_ia32_chdir +12 i386 chdir sys_chdir __ia32_sys_chdir 13 i386 time sys_time __compat_sys_ia32_time -14 i386 mknod sys_mknod __sys_ia32_mknod -15 i386 chmod sys_chmod __sys_ia32_chmod -16 i386 lchown sys_lchown16 __sys_ia32_lchown16 +14 i386 mknod sys_mknod __ia32_sys_mknod +15 i386 chmod sys_chmod __ia32_sys_chmod +16 i386 lchown sys_lchown16 __ia32_sys_lchown16 17 i386 break -18 i386 oldstat sys_stat __sys_ia32_stat +18 i386 oldstat sys_stat __ia32_sys_stat 19 i386 lseek sys_lseek __compat_sys_ia32_lseek 20 i386 getpid sys_getpid 21 i386 mount sys_mount __compat_sys_ia32_mount -22 i386 umount sys_oldumount __sys_ia32_oldumount -23 i386 setuid sys_setuid16 __sys_ia32_setuid16 +22 i386 umount sys_oldumount __ia32_sys_oldumount +23 i386 setuid sys_setuid16 __ia32_sys_setuid16 24 i386 getuid sys_getuid16 25 i386 stime sys_stime __compat_sys_ia32_stime 26 i386 ptrace sys_ptrace __compat_sys_ia32_ptrace -27 i386 alarm sys_alarm __sys_ia32_alarm -28 i386 oldfstat sys_fstat __sys_ia32_fstat +27 i386 alarm sys_alarm __ia32_sys_alarm +28 i386 oldfstat sys_fstat __ia32_sys_fstat 29 i386 pause sys_pause 30 i386 utime sys_utime __compat_sys_ia32_utime 31 i386 stty 32 i386 gtty -33 i386 access sys_access __sys_ia32_access -34 i386 nice sys_nice __sys_ia32_nice +33 i386 access sys_access __ia32_sys_access +34 i386 nice sys_nice __ia32_sys_nice 35 i386 ftime 36 i386 sync sys_sync -37 i386 kill sys_kill __sys_ia32_kill -38 i386 rename sys_rename __sys_ia32_rename -39 i386 mkdir sys_mkdir __sys_ia32_mkdir -40 i386 rmdir sys_rmdir __sys_ia32_rmdir -41 i386 dup sys_dup __sys_ia32_dup -42 i386 pipe sys_pipe __sys_ia32_pipe +37 i386 kill sys_kill __ia32_sys_kill +38 i386 rename sys_rename __ia32_sys_rename +39 i386 mkdir sys_mkdir __ia32_sys_mkdir +40 i386 rmdir sys_rmdir __ia32_sys_rmdir +41 i386 dup sys_dup __ia32_sys_dup +42 i386 pipe sys_pipe __ia32_sys_pipe 43 i386 times sys_times __compat_sys_ia32_times 44 i386 prof -45 i386 brk sys_brk __sys_ia32_brk -46 i386 setgid sys_setgid16 __sys_ia32_setgid16 +45 i386 brk sys_brk __ia32_sys_brk +46 i386 setgid sys_setgid16 __ia32_sys_setgid16 47 i386 getgid sys_getgid16 -48 i386 signal sys_signal __sys_ia32_signal +48 i386 signal sys_signal __ia32_sys_signal 49 i386 geteuid sys_geteuid16 50 i386 getegid sys_getegid16 -51 i386 acct sys_acct __sys_ia32_acct -52 i386 umount2 sys_umount __sys_ia32_umount +51 i386 acct sys_acct __ia32_sys_acct +52 i386 umount2 sys_umount __ia32_sys_umount 53 i386 lock 54 i386 ioctl sys_ioctl __compat_sys_ia32_ioctl 55 i386 fcntl sys_fcntl __compat_sys_ia32_fcntl64 56 i386 mpx -57 i386 setpgid sys_setpgid __sys_ia32_setpgid +57 i386 setpgid sys_setpgid __ia32_sys_setpgid 58 i386 ulimit -59 i386 oldolduname sys_olduname __sys_ia32_olduname -60 i386 umask sys_umask __sys_ia32_umask -61 i386 chroot sys_chroot __sys_ia32_chroot +59 i386 oldolduname sys_olduname __ia32_sys_olduname +60 i386 umask sys_umask __ia32_sys_umask +61 i386 chroot sys_chroot __ia32_sys_chroot 62 i386 ustat sys_ustat __compat_sys_ia32_ustat -63 i386 dup2 sys_dup2 __sys_ia32_dup2 +63 i386 dup2 sys_dup2 __ia32_sys_dup2 64 i386 getppid sys_getppid 65 i386 getpgrp sys_getpgrp 66 i386 setsid sys_setsid 67 i386 sigaction sys_sigaction __compat_sys_ia32_sigaction 68 i386 sgetmask sys_sgetmask -69 i386 ssetmask sys_ssetmask __sys_ia32_ssetmask -70 i386 setreuid sys_setreuid16 __sys_ia32_setreuid16 -71 i386 setregid sys_setregid16 __sys_ia32_setregid16 -72 i386 sigsuspend sys_sigsuspend __sys_ia32_sigsuspend +69 i386 ssetmask sys_ssetmask __ia32_sys_ssetmask +70 i386 setreuid sys_setreuid16 __ia32_sys_setreuid16 +71 i386 setregid sys_setregid16 __ia32_sys_setregid16 +72 i386 sigsuspend sys_sigsuspend __ia32_sys_sigsuspend 73 i386 sigpending sys_sigpending __compat_sys_ia32_sigpending -74 i386 sethostname sys_sethostname __sys_ia32_sethostname +74 i386 sethostname sys_sethostname __ia32_sys_sethostname 75 i386 setrlimit sys_setrlimit __compat_sys_ia32_setrlimit 76 i386 getrlimit sys_old_getrlimit __compat_sys_ia32_old_getrlimit 77 i386 getrusage sys_getrusage __compat_sys_ia32_getrusage 78 i386 gettimeofday sys_gettimeofday __compat_sys_ia32_gettimeofday 79 i386 settimeofday sys_settimeofday __compat_sys_ia32_settimeofday -80 i386 getgroups sys_getgroups16 __sys_ia32_getgroups16 -81 i386 setgroups sys_setgroups16 __sys_ia32_setgroups16 +80 i386 getgroups sys_getgroups16 __ia32_sys_getgroups16 +81 i386 setgroups sys_setgroups16 __ia32_sys_setgroups16 82 i386 select sys_old_select __compat_sys_ia32_old_select -83 i386 symlink sys_symlink __sys_ia32_symlink -84 i386 oldlstat sys_lstat __sys_ia32_lstat -85 i386 readlink sys_readlink __sys_ia32_readlink -86 i386 uselib sys_uselib __sys_ia32_uselib -87 i386 swapon sys_swapon __sys_ia32_swapon -88 i386 reboot sys_reboot __sys_ia32_reboot +83 i386 symlink sys_symlink __ia32_sys_symlink +84 i386 oldlstat sys_lstat __ia32_sys_lstat +85 i386 readlink sys_readlink __ia32_sys_readlink +86 i386 uselib sys_uselib __ia32_sys_uselib +87 i386 swapon sys_swapon __ia32_sys_swapon +88 i386 reboot sys_reboot __ia32_sys_reboot 89 i386 readdir sys_old_readdir __compat_sys_ia32_old_readdir 90 i386 mmap sys_old_mmap __compat_sys_ia32_x86_mmap -91 i386 munmap sys_munmap __sys_ia32_munmap +91 i386 munmap sys_munmap __ia32_sys_munmap 92 i386 truncate sys_truncate __compat_sys_ia32_truncate 93 i386 ftruncate sys_ftruncate __compat_sys_ia32_ftruncate -94 i386 fchmod sys_fchmod __sys_ia32_fchmod -95 i386 fchown sys_fchown16 __sys_ia32_fchown16 -96 i386 getpriority sys_getpriority __sys_ia32_getpriority -97 i386 setpriority sys_setpriority __sys_ia32_setpriority +94 i386 fchmod sys_fchmod __ia32_sys_fchmod +95 i386 fchown sys_fchown16 __ia32_sys_fchown16 +96 i386 getpriority sys_getpriority __ia32_sys_getpriority +97 i386 setpriority sys_setpriority __ia32_sys_setpriority 98 i386 profil 99 i386 statfs sys_statfs __compat_sys_ia32_statfs 100 i386 fstatfs sys_fstatfs __compat_sys_ia32_fstatfs -101 i386 ioperm sys_ioperm __sys_ia32_ioperm +101 i386 ioperm sys_ioperm __ia32_sys_ioperm 102 i386 socketcall sys_socketcall __compat_sys_ia32_socketcall -103 i386 syslog sys_syslog __sys_ia32_syslog +103 i386 syslog sys_syslog __ia32_sys_syslog 104 i386 setitimer sys_setitimer __compat_sys_ia32_setitimer 105 i386 getitimer sys_getitimer __compat_sys_ia32_getitimer 106 i386 stat sys_newstat __compat_sys_ia32_newstat 107 i386 lstat sys_newlstat __compat_sys_ia32_newlstat 108 i386 fstat sys_newfstat __compat_sys_ia32_newfstat -109 i386 olduname sys_uname __sys_ia32_uname -110 i386 iopl sys_iopl __sys_ia32_iopl +109 i386 olduname sys_uname __ia32_sys_uname +110 i386 iopl sys_iopl __ia32_sys_iopl 111 i386 vhangup sys_vhangup 112 i386 idle 113 i386 vm86old sys_vm86old sys_ni_syscall 114 i386 wait4 sys_wait4 __compat_sys_ia32_wait4 -115 i386 swapoff sys_swapoff __sys_ia32_swapoff +115 i386 swapoff sys_swapoff __ia32_sys_swapoff 116 i386 sysinfo sys_sysinfo __compat_sys_ia32_sysinfo 117 i386 ipc sys_ipc __compat_sys_ia32_ipc -118 i386 fsync sys_fsync __sys_ia32_fsync +118 i386 fsync sys_fsync __ia32_sys_fsync 119 i386 sigreturn sys_sigreturn sys32_sigreturn 120 i386 clone sys_clone __compat_sys_ia32_x86_clone -121 i386 setdomainname sys_setdomainname __sys_ia32_setdomainname -122 i386 uname sys_newuname __sys_ia32_newuname -123 i386 modify_ldt sys_modify_ldt __sys_ia32_modify_ldt +121 i386 setdomainname sys_setdomainname __ia32_sys_setdomainname +122 i386 uname sys_newuname __ia32_sys_newuname +123 i386 modify_ldt sys_modify_ldt __ia32_sys_modify_ldt 124 i386 adjtimex sys_adjtimex __compat_sys_ia32_adjtimex -125 i386 mprotect sys_mprotect __sys_ia32_mprotect +125 i386 mprotect sys_mprotect __ia32_sys_mprotect 126 i386 sigprocmask sys_sigprocmask __compat_sys_ia32_sigprocmask 127 i386 create_module -128 i386 init_module sys_init_module __sys_ia32_init_module -129 i386 delete_module sys_delete_module __sys_ia32_delete_module +128 i386 init_module sys_init_module __ia32_sys_init_module +129 i386 delete_module sys_delete_module __ia32_sys_delete_module 130 i386 get_kernel_syms 131 i386 quotactl sys_quotactl __compat_sys_ia32_quotactl32 -132 i386 getpgid sys_getpgid __sys_ia32_getpgid -133 i386 fchdir sys_fchdir __sys_ia32_fchdir -134 i386 bdflush sys_bdflush __sys_ia32_bdflush -135 i386 sysfs sys_sysfs __sys_ia32_sysfs -136 i386 personality sys_personality __sys_ia32_personality +132 i386 getpgid sys_getpgid __ia32_sys_getpgid +133 i386 fchdir sys_fchdir __ia32_sys_fchdir +134 i386 bdflush sys_bdflush __ia32_sys_bdflush +135 i386 sysfs sys_sysfs __ia32_sys_sysfs +136 i386 personality sys_personality __ia32_sys_personality 137 i386 afs_syscall -138 i386 setfsuid sys_setfsuid16 __sys_ia32_setfsuid16 -139 i386 setfsgid sys_setfsgid16 __sys_ia32_setfsgid16 -140 i386 _llseek sys_llseek __sys_ia32_llseek +138 i386 setfsuid sys_setfsuid16 __ia32_sys_setfsuid16 +139 i386 setfsgid sys_setfsgid16 __ia32_sys_setfsgid16 +140 i386 _llseek sys_llseek __ia32_sys_llseek 141 i386 getdents sys_getdents __compat_sys_ia32_getdents 142 i386 _newselect sys_select __compat_sys_ia32_select -143 i386 flock sys_flock __sys_ia32_flock -144 i386 msync sys_msync __sys_ia32_msync +143 i386 flock sys_flock __ia32_sys_flock +144 i386 msync sys_msync __ia32_sys_msync 145 i386 readv sys_readv __compat_sys_ia32_readv 146 i386 writev sys_writev __compat_sys_ia32_writev -147 i386 getsid sys_getsid __sys_ia32_getsid -148 i386 fdatasync sys_fdatasync __sys_ia32_fdatasync +147 i386 getsid sys_getsid __ia32_sys_getsid +148 i386 fdatasync sys_fdatasync __ia32_sys_fdatasync 149 i386 _sysctl sys_sysctl __compat_sys_ia32_sysctl -150 i386 mlock sys_mlock __sys_ia32_mlock -151 i386 munlock sys_munlock __sys_ia32_munlock -152 i386 mlockall sys_mlockall __sys_ia32_mlockall +150 i386 mlock sys_mlock __ia32_sys_mlock +151 i386 munlock sys_munlock __ia32_sys_munlock +152 i386 mlockall sys_mlockall __ia32_sys_mlockall 153 i386 munlockall sys_munlockall -154 i386 sched_setparam sys_sched_setparam __sys_ia32_sched_setparam -155 i386 sched_getparam sys_sched_getparam __sys_ia32_sched_getparam -156 i386 sched_setscheduler sys_sched_setscheduler __sys_ia32_sched_setscheduler -157 i386 sched_getscheduler sys_sched_getscheduler __sys_ia32_sched_getscheduler +154 i386 sched_setparam sys_sched_setparam __ia32_sys_sched_setparam +155 i386 sched_getparam sys_sched_getparam __ia32_sys_sched_getparam +156 i386 sched_setscheduler sys_sched_setscheduler __ia32_sys_sched_setscheduler +157 i386 sched_getscheduler sys_sched_getscheduler __ia32_sys_sched_getscheduler 158 i386 sched_yield sys_sched_yield -159 i386 sched_get_priority_max sys_sched_get_priority_max __sys_ia32_sched_get_priority_max -160 i386 sched_get_priority_min sys_sched_get_priority_min __sys_ia32_sched_get_priority_min +159 i386 sched_get_priority_max sys_sched_get_priority_max __ia32_sys_sched_get_priority_max +160 i386 sched_get_priority_min sys_sched_get_priority_min __ia32_sys_sched_get_priority_min 161 i386 sched_rr_get_interval sys_sched_rr_get_interval __compat_sys_ia32_sched_rr_get_interval 162 i386 nanosleep sys_nanosleep __compat_sys_ia32_nanosleep -163 i386 mremap sys_mremap __sys_ia32_mremap -164 i386 setresuid sys_setresuid16 __sys_ia32_setresuid16 -165 i386 getresuid sys_getresuid16 __sys_ia32_getresuid16 +163 i386 mremap sys_mremap __ia32_sys_mremap +164 i386 setresuid sys_setresuid16 __ia32_sys_setresuid16 +165 i386 getresuid sys_getresuid16 __ia32_sys_getresuid16 166 i386 vm86 sys_vm86 sys_ni_syscall 167 i386 query_module -168 i386 poll sys_poll __sys_ia32_poll +168 i386 poll sys_poll __ia32_sys_poll 169 i386 nfsservctl -170 i386 setresgid sys_setresgid16 __sys_ia32_setresgid16 -171 i386 getresgid sys_getresgid16 __sys_ia32_getresgid16 -172 i386 prctl sys_prctl __sys_ia32_prctl +170 i386 setresgid sys_setresgid16 __ia32_sys_setresgid16 +171 i386 getresgid sys_getresgid16 __ia32_sys_getresgid16 +172 i386 prctl sys_prctl __ia32_sys_prctl 173 i386 rt_sigreturn sys_rt_sigreturn sys32_rt_sigreturn 174 i386 rt_sigaction sys_rt_sigaction __compat_sys_ia32_rt_sigaction -175 i386 rt_sigprocmask sys_rt_sigprocmask __sys_ia32_rt_sigprocmask +175 i386 rt_sigprocmask sys_rt_sigprocmask __ia32_sys_rt_sigprocmask 176 i386 rt_sigpending sys_rt_sigpending __compat_sys_ia32_rt_sigpending 177 i386 rt_sigtimedwait sys_rt_sigtimedwait __compat_sys_ia32_rt_sigtimedwait 178 i386 rt_sigqueueinfo sys_rt_sigqueueinfo __compat_sys_ia32_rt_sigqueueinfo -179 i386 rt_sigsuspend sys_rt_sigsuspend __sys_ia32_rt_sigsuspend +179 i386 rt_sigsuspend sys_rt_sigsuspend __ia32_sys_rt_sigsuspend 180 i386 pread64 sys_pread64 __compat_sys_ia32_x86_pread 181 i386 pwrite64 sys_pwrite64 __compat_sys_ia32_x86_pwrite -182 i386 chown sys_chown16 __sys_ia32_chown16 -183 i386 getcwd sys_getcwd __sys_ia32_getcwd -184 i386 capget sys_capget __sys_ia32_capget -185 i386 capset sys_capset __sys_ia32_capset +182 i386 chown sys_chown16 __ia32_sys_chown16 +183 i386 getcwd sys_getcwd __ia32_sys_getcwd +184 i386 capget sys_capget __ia32_sys_capget +185 i386 capset sys_capset __ia32_sys_capset 186 i386 sigaltstack sys_sigaltstack __compat_sys_ia32_sigaltstack 187 i386 sendfile sys_sendfile __compat_sys_ia32_sendfile 188 i386 getpmsg 189 i386 putpmsg 190 i386 vfork sys_vfork 191 i386 ugetrlimit sys_getrlimit __compat_sys_ia32_getrlimit -192 i386 mmap2 sys_mmap_pgoff __sys_ia32_mmap_pgoff +192 i386 mmap2 sys_mmap_pgoff __ia32_sys_mmap_pgoff 193 i386 truncate64 sys_truncate64 __compat_sys_ia32_x86_truncate64 194 i386 ftruncate64 sys_ftruncate64 __compat_sys_ia32_x86_ftruncate64 195 i386 stat64 sys_stat64 __compat_sys_ia32_x86_stat64 196 i386 lstat64 sys_lstat64 __compat_sys_ia32_x86_lstat64 197 i386 fstat64 sys_fstat64 __compat_sys_ia32_x86_fstat64 -198 i386 lchown32 sys_lchown __sys_ia32_lchown +198 i386 lchown32 sys_lchown __ia32_sys_lchown 199 i386 getuid32 sys_getuid 200 i386 getgid32 sys_getgid 201 i386 geteuid32 sys_geteuid 202 i386 getegid32 sys_getegid -203 i386 setreuid32 sys_setreuid __sys_ia32_setreuid -204 i386 setregid32 sys_setregid __sys_ia32_setregid -205 i386 getgroups32 sys_getgroups __sys_ia32_getgroups -206 i386 setgroups32 sys_setgroups __sys_ia32_setgroups -207 i386 fchown32 sys_fchown __sys_ia32_fchown -208 i386 setresuid32 sys_setresuid __sys_ia32_setresuid -209 i386 getresuid32 sys_getresuid __sys_ia32_getresuid -210 i386 setresgid32 sys_setresgid __sys_ia32_setresgid -211 i386 getresgid32 sys_getresgid __sys_ia32_getresgid -212 i386 chown32 sys_chown __sys_ia32_chown -213 i386 setuid32 sys_setuid __sys_ia32_setuid -214 i386 setgid32 sys_setgid __sys_ia32_setgid -215 i386 setfsuid32 sys_setfsuid __sys_ia32_setfsuid -216 i386 setfsgid32 sys_setfsgid __sys_ia32_setfsgid -217 i386 pivot_root sys_pivot_root __sys_ia32_pivot_root -218 i386 mincore sys_mincore __sys_ia32_mincore -219 i386 madvise sys_madvise __sys_ia32_madvise -220 i386 getdents64 sys_getdents64 __sys_ia32_getdents64 +203 i386 setreuid32 sys_setreuid __ia32_sys_setreuid +204 i386 setregid32 sys_setregid __ia32_sys_setregid +205 i386 getgroups32 sys_getgroups __ia32_sys_getgroups +206 i386 setgroups32 sys_setgroups __ia32_sys_setgroups +207 i386 fchown32 sys_fchown __ia32_sys_fchown +208 i386 setresuid32 sys_setresuid __ia32_sys_setresuid +209 i386 getresuid32 sys_getresuid __ia32_sys_getresuid +210 i386 setresgid32 sys_setresgid __ia32_sys_setresgid +211 i386 getresgid32 sys_getresgid __ia32_sys_getresgid +212 i386 chown32 sys_chown __ia32_sys_chown +213 i386 setuid32 sys_setuid __ia32_sys_setuid +214 i386 setgid32 sys_setgid __ia32_sys_setgid +215 i386 setfsuid32 sys_setfsuid __ia32_sys_setfsuid +216 i386 setfsgid32 sys_setfsgid __ia32_sys_setfsgid +217 i386 pivot_root sys_pivot_root __ia32_sys_pivot_root +218 i386 mincore sys_mincore __ia32_sys_mincore +219 i386 madvise sys_madvise __ia32_sys_madvise +220 i386 getdents64 sys_getdents64 __ia32_sys_getdents64 221 i386 fcntl64 sys_fcntl64 __compat_sys_ia32_fcntl64 # 222 is unused # 223 is unused 224 i386 gettid sys_gettid 225 i386 readahead sys_readahead __compat_sys_ia32_x86_readahead -226 i386 setxattr sys_setxattr __sys_ia32_setxattr -227 i386 lsetxattr sys_lsetxattr __sys_ia32_lsetxattr -228 i386 fsetxattr sys_fsetxattr __sys_ia32_fsetxattr -229 i386 getxattr sys_getxattr __sys_ia32_getxattr -230 i386 lgetxattr sys_lgetxattr __sys_ia32_lgetxattr -231 i386 fgetxattr sys_fgetxattr __sys_ia32_fgetxattr -232 i386 listxattr sys_listxattr __sys_ia32_listxattr -233 i386 llistxattr sys_llistxattr __sys_ia32_llistxattr -234 i386 flistxattr sys_flistxattr __sys_ia32_flistxattr -235 i386 removexattr sys_removexattr __sys_ia32_removexattr -236 i386 lremovexattr sys_lremovexattr __sys_ia32_lremovexattr -237 i386 fremovexattr sys_fremovexattr __sys_ia32_fremovexattr -238 i386 tkill sys_tkill __sys_ia32_tkill -239 i386 sendfile64 sys_sendfile64 __sys_ia32_sendfile64 +226 i386 setxattr sys_setxattr __ia32_sys_setxattr +227 i386 lsetxattr sys_lsetxattr __ia32_sys_lsetxattr +228 i386 fsetxattr sys_fsetxattr __ia32_sys_fsetxattr +229 i386 getxattr sys_getxattr __ia32_sys_getxattr +230 i386 lgetxattr sys_lgetxattr __ia32_sys_lgetxattr +231 i386 fgetxattr sys_fgetxattr __ia32_sys_fgetxattr +232 i386 listxattr sys_listxattr __ia32_sys_listxattr +233 i386 llistxattr sys_llistxattr __ia32_sys_llistxattr +234 i386 flistxattr sys_flistxattr __ia32_sys_flistxattr +235 i386 removexattr sys_removexattr __ia32_sys_removexattr +236 i386 lremovexattr sys_lremovexattr __ia32_sys_lremovexattr +237 i386 fremovexattr sys_fremovexattr __ia32_sys_fremovexattr +238 i386 tkill sys_tkill __ia32_sys_tkill +239 i386 sendfile64 sys_sendfile64 __ia32_sys_sendfile64 240 i386 futex sys_futex __compat_sys_ia32_futex 241 i386 sched_setaffinity sys_sched_setaffinity __compat_sys_ia32_sched_setaffinity 242 i386 sched_getaffinity sys_sched_getaffinity __compat_sys_ia32_sched_getaffinity -243 i386 set_thread_area sys_set_thread_area __sys_ia32_set_thread_area -244 i386 get_thread_area sys_get_thread_area __sys_ia32_get_thread_area +243 i386 set_thread_area sys_set_thread_area __ia32_sys_set_thread_area +244 i386 get_thread_area sys_get_thread_area __ia32_sys_get_thread_area 245 i386 io_setup sys_io_setup __compat_sys_ia32_io_setup -246 i386 io_destroy sys_io_destroy __sys_ia32_io_destroy +246 i386 io_destroy sys_io_destroy __ia32_sys_io_destroy 247 i386 io_getevents sys_io_getevents __compat_sys_ia32_io_getevents 248 i386 io_submit sys_io_submit __compat_sys_ia32_io_submit -249 i386 io_cancel sys_io_cancel __sys_ia32_io_cancel +249 i386 io_cancel sys_io_cancel __ia32_sys_io_cancel 250 i386 fadvise64 sys_fadvise64 __compat_sys_ia32_x86_fadvise64 # 251 is available for reuse (was briefly sys_set_zone_reclaim) -252 i386 exit_group sys_exit_group __sys_ia32_exit_group +252 i386 exit_group sys_exit_group __ia32_sys_exit_group 253 i386 lookup_dcookie sys_lookup_dcookie __compat_sys_ia32_lookup_dcookie -254 i386 epoll_create sys_epoll_create __sys_ia32_epoll_create -255 i386 epoll_ctl sys_epoll_ctl __sys_ia32_epoll_ctl -256 i386 epoll_wait sys_epoll_wait __sys_ia32_epoll_wait -257 i386 remap_file_pages sys_remap_file_pages __sys_ia32_remap_file_pages -258 i386 set_tid_address sys_set_tid_address __sys_ia32_set_tid_address +254 i386 epoll_create sys_epoll_create __ia32_sys_epoll_create +255 i386 epoll_ctl sys_epoll_ctl __ia32_sys_epoll_ctl +256 i386 epoll_wait sys_epoll_wait __ia32_sys_epoll_wait +257 i386 remap_file_pages sys_remap_file_pages __ia32_sys_remap_file_pages +258 i386 set_tid_address sys_set_tid_address __ia32_sys_set_tid_address 259 i386 timer_create sys_timer_create __compat_sys_ia32_timer_create 260 i386 timer_settime sys_timer_settime __compat_sys_ia32_timer_settime 261 i386 timer_gettime sys_timer_gettime __compat_sys_ia32_timer_gettime -262 i386 timer_getoverrun sys_timer_getoverrun __sys_ia32_timer_getoverrun -263 i386 timer_delete sys_timer_delete __sys_ia32_timer_delete +262 i386 timer_getoverrun sys_timer_getoverrun __ia32_sys_timer_getoverrun +263 i386 timer_delete sys_timer_delete __ia32_sys_timer_delete 264 i386 clock_settime sys_clock_settime __compat_sys_ia32_clock_settime 265 i386 clock_gettime sys_clock_gettime __compat_sys_ia32_clock_gettime 266 i386 clock_getres sys_clock_getres __compat_sys_ia32_clock_getres 267 i386 clock_nanosleep sys_clock_nanosleep __compat_sys_ia32_clock_nanosleep 268 i386 statfs64 sys_statfs64 __compat_sys_ia32_statfs64 269 i386 fstatfs64 sys_fstatfs64 __compat_sys_ia32_fstatfs64 -270 i386 tgkill sys_tgkill __sys_ia32_tgkill +270 i386 tgkill sys_tgkill __ia32_sys_tgkill 271 i386 utimes sys_utimes __compat_sys_ia32_utimes 272 i386 fadvise64_64 sys_fadvise64_64 __compat_sys_ia32_x86_fadvise64_64 273 i386 vserver -274 i386 mbind sys_mbind __sys_ia32_mbind +274 i386 mbind sys_mbind __ia32_sys_mbind 275 i386 get_mempolicy sys_get_mempolicy __compat_sys_ia32_get_mempolicy -276 i386 set_mempolicy sys_set_mempolicy __sys_ia32_set_mempolicy +276 i386 set_mempolicy sys_set_mempolicy __ia32_sys_set_mempolicy 277 i386 mq_open sys_mq_open __compat_sys_ia32_mq_open -278 i386 mq_unlink sys_mq_unlink __sys_ia32_mq_unlink +278 i386 mq_unlink sys_mq_unlink __ia32_sys_mq_unlink 279 i386 mq_timedsend sys_mq_timedsend __compat_sys_ia32_mq_timedsend 280 i386 mq_timedreceive sys_mq_timedreceive __compat_sys_ia32_mq_timedreceive 281 i386 mq_notify sys_mq_notify __compat_sys_ia32_mq_notify @@ -297,102 +297,102 @@ 283 i386 kexec_load sys_kexec_load __compat_sys_ia32_kexec_load 284 i386 waitid sys_waitid __compat_sys_ia32_waitid # 285 sys_setaltroot -286 i386 add_key sys_add_key __sys_ia32_add_key -287 i386 request_key sys_request_key __sys_ia32_request_key +286 i386 add_key sys_add_key __ia32_sys_add_key +287 i386 request_key sys_request_key __ia32_sys_request_key 288 i386 keyctl sys_keyctl __compat_sys_ia32_keyctl -289 i386 ioprio_set sys_ioprio_set __sys_ia32_ioprio_set -290 i386 ioprio_get sys_ioprio_get __sys_ia32_ioprio_get +289 i386 ioprio_set sys_ioprio_set __ia32_sys_ioprio_set +290 i386 ioprio_get sys_ioprio_get __ia32_sys_ioprio_get 291 i386 inotify_init sys_inotify_init -292 i386 inotify_add_watch sys_inotify_add_watch __sys_ia32_inotify_add_watch -293 i386 inotify_rm_watch sys_inotify_rm_watch __sys_ia32_inotify_rm_watch -294 i386 migrate_pages sys_migrate_pages __sys_ia32_migrate_pages +292 i386 inotify_add_watch sys_inotify_add_watch __ia32_sys_inotify_add_watch +293 i386 inotify_rm_watch sys_inotify_rm_watch __ia32_sys_inotify_rm_watch +294 i386 migrate_pages sys_migrate_pages __ia32_sys_migrate_pages 295 i386 openat sys_openat __compat_sys_ia32_openat -296 i386 mkdirat sys_mkdirat __sys_ia32_mkdirat -297 i386 mknodat sys_mknodat __sys_ia32_mknodat -298 i386 fchownat sys_fchownat __sys_ia32_fchownat +296 i386 mkdirat sys_mkdirat __ia32_sys_mkdirat +297 i386 mknodat sys_mknodat __ia32_sys_mknodat +298 i386 fchownat sys_fchownat __ia32_sys_fchownat 299 i386 futimesat sys_futimesat __compat_sys_ia32_futimesat 300 i386 fstatat64 sys_fstatat64 __compat_sys_ia32_x86_fstatat -301 i386 unlinkat sys_unlinkat __sys_ia32_unlinkat -302 i386 renameat sys_renameat __sys_ia32_renameat -303 i386 linkat sys_linkat __sys_ia32_linkat -304 i386 symlinkat sys_symlinkat __sys_ia32_symlinkat -305 i386 readlinkat sys_readlinkat __sys_ia32_readlinkat -306 i386 fchmodat sys_fchmodat __sys_ia32_fchmodat -307 i386 faccessat sys_faccessat __sys_ia32_faccessat +301 i386 unlinkat sys_unlinkat __ia32_sys_unlinkat +302 i386 renameat sys_renameat __ia32_sys_renameat +303 i386 linkat sys_linkat __ia32_sys_linkat +304 i386 symlinkat sys_symlinkat __ia32_sys_symlinkat +305 i386 readlinkat sys_readlinkat __ia32_sys_readlinkat +306 i386 fchmodat sys_fchmodat __ia32_sys_fchmodat +307 i386 faccessat sys_faccessat __ia32_sys_faccessat 308 i386 pselect6 sys_pselect6 __compat_sys_ia32_pselect6 309 i386 ppoll sys_ppoll __compat_sys_ia32_ppoll -310 i386 unshare sys_unshare __sys_ia32_unshare +310 i386 unshare sys_unshare __ia32_sys_unshare 311 i386 set_robust_list sys_set_robust_list __compat_sys_ia32_set_robust_list 312 i386 get_robust_list sys_get_robust_list __compat_sys_ia32_get_robust_list -313 i386 splice sys_splice __sys_ia32_splice +313 i386 splice sys_splice __ia32_sys_splice 314 i386 sync_file_range sys_sync_file_range __compat_sys_ia32_x86_sync_file_range -315 i386 tee sys_tee __sys_ia32_tee +315 i386 tee sys_tee __ia32_sys_tee 316 i386 vmsplice sys_vmsplice __compat_sys_ia32_vmsplice 317 i386 move_pages sys_move_pages __compat_sys_ia32_move_pages -318 i386 getcpu sys_getcpu __sys_ia32_getcpu -319 i386 epoll_pwait sys_epoll_pwait __sys_ia32_epoll_pwait +318 i386 getcpu sys_getcpu __ia32_sys_getcpu +319 i386 epoll_pwait sys_epoll_pwait __ia32_sys_epoll_pwait 320 i386 utimensat sys_utimensat __compat_sys_ia32_utimensat 321 i386 signalfd sys_signalfd __compat_sys_ia32_signalfd -322 i386 timerfd_create sys_timerfd_create __sys_ia32_timerfd_create -323 i386 eventfd sys_eventfd __sys_ia32_eventfd +322 i386 timerfd_create sys_timerfd_create __ia32_sys_timerfd_create +323 i386 eventfd sys_eventfd __ia32_sys_eventfd 324 i386 fallocate sys_fallocate __compat_sys_ia32_x86_fallocate 325 i386 timerfd_settime sys_timerfd_settime __compat_sys_ia32_timerfd_settime 326 i386 timerfd_gettime sys_timerfd_gettime __compat_sys_ia32_timerfd_gettime 327 i386 signalfd4 sys_signalfd4 __compat_sys_ia32_signalfd4 -328 i386 eventfd2 sys_eventfd2 __sys_ia32_eventfd2 -329 i386 epoll_create1 sys_epoll_create1 __sys_ia32_epoll_create1 -330 i386 dup3 sys_dup3 __sys_ia32_dup3 -331 i386 pipe2 sys_pipe2 __sys_ia32_pipe2 -332 i386 inotify_init1 sys_inotify_init1 __sys_ia32_inotify_init1 +328 i386 eventfd2 sys_eventfd2 __ia32_sys_eventfd2 +329 i386 epoll_create1 sys_epoll_create1 __ia32_sys_epoll_create1 +330 i386 dup3 sys_dup3 __ia32_sys_dup3 +331 i386 pipe2 sys_pipe2 __ia32_sys_pipe2 +332 i386 inotify_init1 sys_inotify_init1 __ia32_sys_inotify_init1 333 i386 preadv sys_preadv __compat_sys_ia32_preadv 334 i386 pwritev sys_pwritev __compat_sys_ia32_pwritev 335 i386 rt_tgsigqueueinfo sys_rt_tgsigqueueinfo __compat_sys_ia32_rt_tgsigqueueinfo -336 i386 perf_event_open sys_perf_event_open __sys_ia32_perf_event_open +336 i386 perf_event_open sys_perf_event_open __ia32_sys_perf_event_open 337 i386 recvmmsg sys_recvmmsg __compat_sys_ia32_recvmmsg -338 i386 fanotify_init sys_fanotify_init __sys_ia32_fanotify_init +338 i386 fanotify_init sys_fanotify_init __ia32_sys_fanotify_init 339 i386 fanotify_mark sys_fanotify_mark __compat_sys_ia32_fanotify_mark -340 i386 prlimit64 sys_prlimit64 __sys_ia32_prlimit64 -341 i386 name_to_handle_at sys_name_to_handle_at __sys_ia32_name_to_handle_at +340 i386 prlimit64 sys_prlimit64 __ia32_sys_prlimit64 +341 i386 name_to_handle_at sys_name_to_handle_at __ia32_sys_name_to_handle_at 342 i386 open_by_handle_at sys_open_by_handle_at __compat_sys_ia32_open_by_handle_at 343 i386 clock_adjtime sys_clock_adjtime __compat_sys_ia32_clock_adjtime -344 i386 syncfs sys_syncfs __sys_ia32_syncfs +344 i386 syncfs sys_syncfs __ia32_sys_syncfs 345 i386 sendmmsg sys_sendmmsg __compat_sys_ia32_sendmmsg -346 i386 setns sys_setns __sys_ia32_setns +346 i386 setns sys_setns __ia32_sys_setns 347 i386 process_vm_readv sys_process_vm_readv __compat_sys_ia32_process_vm_readv 348 i386 process_vm_writev sys_process_vm_writev __compat_sys_ia32_process_vm_writev -349 i386 kcmp sys_kcmp __sys_ia32_kcmp -350 i386 finit_module sys_finit_module __sys_ia32_finit_module -351 i386 sched_setattr sys_sched_setattr __sys_ia32_sched_setattr -352 i386 sched_getattr sys_sched_getattr __sys_ia32_sched_getattr -353 i386 renameat2 sys_renameat2 __sys_ia32_renameat2 -354 i386 seccomp sys_seccomp __sys_ia32_seccomp -355 i386 getrandom sys_getrandom __sys_ia32_getrandom -356 i386 memfd_create sys_memfd_create __sys_ia32_memfd_create -357 i386 bpf sys_bpf __sys_ia32_bpf +349 i386 kcmp sys_kcmp __ia32_sys_kcmp +350 i386 finit_module sys_finit_module __ia32_sys_finit_module +351 i386 sched_setattr sys_sched_setattr __ia32_sys_sched_setattr +352 i386 sched_getattr sys_sched_getattr __ia32_sys_sched_getattr +353 i386 renameat2 sys_renameat2 __ia32_sys_renameat2 +354 i386 seccomp sys_seccomp __ia32_sys_seccomp +355 i386 getrandom sys_getrandom __ia32_sys_getrandom +356 i386 memfd_create sys_memfd_create __ia32_sys_memfd_create +357 i386 bpf sys_bpf __ia32_sys_bpf 358 i386 execveat sys_execveat __compat_sys_ia32_execveat -359 i386 socket sys_socket __sys_ia32_socket -360 i386 socketpair sys_socketpair __sys_ia32_socketpair -361 i386 bind sys_bind __sys_ia32_bind -362 i386 connect sys_connect __sys_ia32_connect -363 i386 listen sys_listen __sys_ia32_listen -364 i386 accept4 sys_accept4 __sys_ia32_accept4 +359 i386 socket sys_socket __ia32_sys_socket +360 i386 socketpair sys_socketpair __ia32_sys_socketpair +361 i386 bind sys_bind __ia32_sys_bind +362 i386 connect sys_connect __ia32_sys_connect +363 i386 listen sys_listen __ia32_sys_listen +364 i386 accept4 sys_accept4 __ia32_sys_accept4 365 i386 getsockopt sys_getsockopt __compat_sys_ia32_getsockopt 366 i386 setsockopt sys_setsockopt __compat_sys_ia32_setsockopt -367 i386 getsockname sys_getsockname __sys_ia32_getsockname -368 i386 getpeername sys_getpeername __sys_ia32_getpeername -369 i386 sendto sys_sendto __sys_ia32_sendto +367 i386 getsockname sys_getsockname __ia32_sys_getsockname +368 i386 getpeername sys_getpeername __ia32_sys_getpeername +369 i386 sendto sys_sendto __ia32_sys_sendto 370 i386 sendmsg sys_sendmsg __compat_sys_ia32_sendmsg 371 i386 recvfrom sys_recvfrom __compat_sys_ia32_recvfrom 372 i386 recvmsg sys_recvmsg __compat_sys_ia32_recvmsg -373 i386 shutdown sys_shutdown __sys_ia32_shutdown -374 i386 userfaultfd sys_userfaultfd __sys_ia32_userfaultfd -375 i386 membarrier sys_membarrier __sys_ia32_membarrier -376 i386 mlock2 sys_mlock2 __sys_ia32_mlock2 -377 i386 copy_file_range sys_copy_file_range __sys_ia32_copy_file_range +373 i386 shutdown sys_shutdown __ia32_sys_shutdown +374 i386 userfaultfd sys_userfaultfd __ia32_sys_userfaultfd +375 i386 membarrier sys_membarrier __ia32_sys_membarrier +376 i386 mlock2 sys_mlock2 __ia32_sys_mlock2 +377 i386 copy_file_range sys_copy_file_range __ia32_sys_copy_file_range 378 i386 preadv2 sys_preadv2 __compat_sys_ia32_preadv2 379 i386 pwritev2 sys_pwritev2 __compat_sys_ia32_pwritev2 -380 i386 pkey_mprotect sys_pkey_mprotect __sys_ia32_pkey_mprotect -381 i386 pkey_alloc sys_pkey_alloc __sys_ia32_pkey_alloc -382 i386 pkey_free sys_pkey_free __sys_ia32_pkey_free -383 i386 statx sys_statx __sys_ia32_statx +380 i386 pkey_mprotect sys_pkey_mprotect __ia32_sys_pkey_mprotect +381 i386 pkey_alloc sys_pkey_alloc __ia32_sys_pkey_alloc +382 i386 pkey_free sys_pkey_free __ia32_sys_pkey_free +383 i386 statx sys_statx __ia32_sys_statx 384 i386 arch_prctl sys_arch_prctl __compat_sys_ia32_arch_prctl diff --git a/arch/x86/include/asm/syscall_wrapper.h b/arch/x86/include/asm/syscall_wrapper.h index 49d7e4970110..798a3c2bff4f 100644 --- a/arch/x86/include/asm/syscall_wrapper.h +++ b/arch/x86/include/asm/syscall_wrapper.h @@ -22,7 +22,7 @@ #ifdef CONFIG_IA32_EMULATION /* * For IA32 emulation, we need to handle "compat" syscalls *and* create - * additional wrappers (aptly named __sys_ia32_sys_xyzzy) which decode the + * additional wrappers (aptly named __ia32_sys_xyzzy) which decode the * ia32 regs in the proper order for shared or "common" syscalls. As some * syscalls may not be implemented, we need to expand COND_SYSCALL in * kernel/sys_ni.c and SYS_NI in kernel/time/posix-stubs.c to cover this @@ -37,20 +37,20 @@ } \ #define SC_IA32_WRAPPERx(x, name, ...) \ - asmlinkage long __sys_ia32##name(const struct pt_regs *regs); \ - ALLOW_ERROR_INJECTION(__sys_ia32##name, ERRNO); \ - asmlinkage long __sys_ia32##name(const struct pt_regs *regs) \ + asmlinkage long __ia32_sys##name(const struct pt_regs *regs); \ + ALLOW_ERROR_INJECTION(__ia32_sys##name, ERRNO); \ + asmlinkage long __ia32_sys##name(const struct pt_regs *regs) \ { \ - return SyS##name(SC_IA32_REGS_TO_ARGS(x,__VA_ARGS__)); \ + return __se_sys##name(SC_IA32_REGS_TO_ARGS(x,__VA_ARGS__));\ } #define COND_SYSCALL(name) \ cond_syscall(sys_##name); \ - cond_syscall(__sys_ia32_##name) + cond_syscall(__ia32_sys_##name) #define SYS_NI(name) \ SYSCALL_ALIAS(sys_##name, sys_ni_posix_timers); \ - SYSCALL_ALIAS(__sys_ia32_##name, sys_ni_posix_timers) + SYSCALL_ALIAS(__ia32_sys_##name, sys_ni_posix_timers) #else /* CONFIG_IA32_EMULATION */ #define COMPAT_SC_IA32_STUBx(x, name, ...) @@ -115,9 +115,10 @@ * Instead of the generic __SYSCALL_DEFINEx() definition, this macro takes * struct pt_regs *regs as the only argument of the syscall stub named * sys_*(). It decodes just the registers it needs and passes them on to - * the SyS_*() wrapper and then to the SYSC_*() function doing the actual job. - * These wrappers and functions are inlined, meaning that the assembly looks - * as follows (slightly re-ordered): + * the __se_sys_*() wrapper performing sign extension and then to the + * __do_sys_*() function doing the actual job. These wrappers and functions + * are inlined (at least in very most cases), meaning that the assembly looks + * as follows (slightly re-ordered for better readability): * * : <-- syscall with 4 parameters * callq <__fentry__> @@ -140,7 +141,7 @@ * the call chain. * * If IA32_EMULATION is enabled, this macro generates an additional wrapper - * named __sys_ia32_*() which decodes the struct pt_regs *regs according + * named __ia32_sys_*() which decodes the struct pt_regs *regs according * to the i386 calling convention (bx, cx, dx, si, di, bp). * * As the generic SYSCALL_DEFINE0() macro does not decode any parameters for @@ -151,21 +152,21 @@ #define __SYSCALL_DEFINEx(x, name, ...) \ asmlinkage long sys##name(const struct pt_regs *regs); \ ALLOW_ERROR_INJECTION(sys##name, ERRNO); \ - static long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ - static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \ + static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ + static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ asmlinkage long sys##name(const struct pt_regs *regs) \ { \ - return SyS##name(SC_X86_64_REGS_TO_ARGS(x,__VA_ARGS__));\ + return __se_sys##name(SC_X86_64_REGS_TO_ARGS(x,__VA_ARGS__));\ } \ SC_IA32_WRAPPERx(x, name, __VA_ARGS__) \ - static long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ + static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ { \ - long ret = SYSC##name(__MAP(x,__SC_CAST,__VA_ARGS__)); \ + long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\ __MAP(x,__SC_TEST,__VA_ARGS__); \ __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \ return ret; \ } \ - static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__)) + static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) /* * For VSYSCALLS, we need to declare these three syscalls with the new diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index d7168b3a4b4c..70fcda1a9049 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -223,21 +223,26 @@ static inline int is_syscall_trace_event(struct trace_event_call *tp_event) #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__) +/* + * The asmlinkage stub is aliased to a function named __se_sys_*() which + * sign-extends 32-bit ints to longs whenever needed. The actual work is + * done within __do_sys_*(). + */ #ifndef __SYSCALL_DEFINEx #define __SYSCALL_DEFINEx(x, name, ...) \ asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ - __attribute__((alias(__stringify(SyS##name)))); \ + __attribute__((alias(__stringify(__se_sys##name)))); \ ALLOW_ERROR_INJECTION(sys##name, ERRNO); \ - static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \ - asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ - asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ + static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ + asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ + asmlinkage long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ { \ - long ret = SYSC##name(__MAP(x,__SC_CAST,__VA_ARGS__)); \ + long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\ __MAP(x,__SC_TEST,__VA_ARGS__); \ __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \ return ret; \ } \ - static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__)) + static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) #endif /* __SYSCALL_DEFINEx */ /* diff --git a/scripts/bloat-o-meter b/scripts/bloat-o-meter index d84a5674e95e..ce129e61cc65 100755 --- a/scripts/bloat-o-meter +++ b/scripts/bloat-o-meter @@ -30,7 +30,7 @@ def getsizes(file, format): if type in format: # strip generated symbols if name.startswith("__mod_"): continue - if name.startswith("SyS_"): continue + if name.startswith("__se_sys"): continue if name.startswith("compat_SyS_"): continue if name == "linux_banner": continue # statics and some other optimizations adds random .NUMBER -- GitLab