x86: pass in pt_regs pointer for syscalls that need it

Some syscalls need to access the pt_regs structure, either to copy
user register state or to modifiy it.  This patch adds stubs to load
the address of the pt_regs struct into the %eax register, and changes
the syscalls to regparm(1) to receive the pt_regs pointer as the
first argument.

Signed-off-by: Brian Gerst <brgerst@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 10 insertions, 10 deletions

diff --git a/arch/x86/kernel/syscall_table_32.S b/arch/x86/kernel/syscall_table_32.S
index e2e86a08f31d..3bdb64829b82 100644
--- a/arch/x86/kernel/syscall_table_32.S
+++ b/arch/x86/kernel/syscall_table_32.S
@@ -1,7 +1,7 @@
 ENTRY(sys_call_table)
         .long sys_restart_syscall       /* 0 - old "setup()" system call, used for restarting */
         .long sys_exit
-        .long sys_fork
+        .long ptregs_fork
         .long sys_read
         .long sys_write
         .long sys_open          /* 5 */
@@ -10,7 +10,7 @@ ENTRY(sys_call_table)
         .long sys_creat
         .long sys_link
         .long sys_unlink        /* 10 */
-        .long sys_execve
+        .long ptregs_execve
         .long sys_chdir
         .long sys_time
         .long sys_mknod
@@ -109,17 +109,17 @@ ENTRY(sys_call_table)
         .long sys_newlstat
         .long sys_newfstat
         .long sys_uname
-        .long sys_iopl          /* 110 */
+        .long ptregs_iopl       /* 110 */
         .long sys_vhangup
         .long sys_ni_syscall    /* old "idle" system call */
-        .long sys_vm86old
+        .long ptregs_vm86old
         .long sys_wait4
         .long sys_swapoff       /* 115 */
         .long sys_sysinfo
         .long sys_ipc
         .long sys_fsync
-        .long sys_sigreturn
-        .long sys_clone         /* 120 */
+        .long ptregs_sigreturn
+        .long ptregs_clone      /* 120 */
         .long sys_setdomainname
         .long sys_newuname
         .long sys_modify_ldt
@@ -165,14 +165,14 @@ ENTRY(sys_call_table)
         .long sys_mremap
         .long sys_setresuid16
         .long sys_getresuid16   /* 165 */
-        .long sys_vm86
+        .long ptregs_vm86
         .long sys_ni_syscall    /* Old sys_query_module */
         .long sys_poll
         .long sys_nfsservctl
         .long sys_setresgid16   /* 170 */
         .long sys_getresgid16
         .long sys_prctl
-        .long sys_rt_sigreturn
+        .long ptregs_rt_sigreturn
         .long sys_rt_sigaction
         .long sys_rt_sigprocmask        /* 175 */
         .long sys_rt_sigpending
@@ -185,11 +185,11 @@ ENTRY(sys_call_table)
         .long sys_getcwd
         .long sys_capget
         .long sys_capset        /* 185 */
-        .long sys_sigaltstack
+        .long ptregs_sigaltstack
         .long sys_sendfile
         .long sys_ni_syscall    /* reserved for streams1 */
         .long sys_ni_syscall    /* reserved for streams2 */
-        .long sys_vfork         /* 190 */
+        .long ptregs_vfork      /* 190 */
         .long sys_getrlimit
         .long sys_mmap2
         .long sys_truncate64