diff options
Diffstat (limited to 'arch/x86/ia32')
-rw-r--r-- | arch/x86/ia32/ia32_signal.c | 2 | ||||
-rw-r--r-- | arch/x86/ia32/ia32entry.S | 12 | ||||
-rw-r--r-- | arch/x86/ia32/sys_ia32.c | 31 |
3 files changed, 10 insertions, 35 deletions
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c index 5e7771a..05e155d 100644 --- a/arch/x86/ia32/ia32_signal.c +++ b/arch/x86/ia32/ia32_signal.c @@ -468,7 +468,7 @@ int ia32_setup_frame(int sig, struct k_sigaction *ka, restorer = ka->sa.sa_restorer; } else { /* Return stub is in 32bit vsyscall page */ - if (current->binfmt->hasvdso) + if (current->mm->context.vdso) restorer = VDSO32_SYMBOL(current->mm->context.vdso, sigreturn); else diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S index 8022d3c..ae7158bc 100644 --- a/arch/x86/ia32/ia32entry.S +++ b/arch/x86/ia32/ia32entry.S @@ -162,12 +162,14 @@ sysenter_tracesys: SAVE_REST CLEAR_RREGS movq %r9,R9(%rsp) - movq $-ENOSYS,RAX(%rsp) /* really needed? */ + movq $-ENOSYS,RAX(%rsp)/* ptrace can change this for a bad syscall */ movq %rsp,%rdi /* &pt_regs -> arg1 */ call syscall_trace_enter LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */ RESTORE_REST xchgl %ebp,%r9d + cmpl $(IA32_NR_syscalls-1),%eax + ja int_ret_from_sys_call /* sysenter_tracesys has set RAX(%rsp) */ jmp sysenter_do_call CFI_ENDPROC ENDPROC(ia32_sysenter_target) @@ -261,13 +263,15 @@ cstar_tracesys: SAVE_REST CLEAR_RREGS movq %r9,R9(%rsp) - movq $-ENOSYS,RAX(%rsp) /* really needed? */ + movq $-ENOSYS,RAX(%rsp) /* ptrace can change this for a bad syscall */ movq %rsp,%rdi /* &pt_regs -> arg1 */ call syscall_trace_enter LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */ RESTORE_REST xchgl %ebp,%r9d movl RSP-ARGOFFSET(%rsp), %r8d + cmpl $(IA32_NR_syscalls-1),%eax + ja int_ret_from_sys_call /* cstar_tracesys has set RAX(%rsp) */ jmp cstar_do_call END(ia32_cstar_target) @@ -325,7 +329,7 @@ ENTRY(ia32_syscall) jnz ia32_tracesys ia32_do_syscall: cmpl $(IA32_NR_syscalls-1),%eax - ja ia32_badsys + ja int_ret_from_sys_call /* ia32_tracesys has set RAX(%rsp) */ IA32_ARG_FIXUP call *ia32_sys_call_table(,%rax,8) # xxx: rip relative ia32_sysret: @@ -335,7 +339,7 @@ ia32_sysret: ia32_tracesys: SAVE_REST CLEAR_RREGS - movq $-ENOSYS,RAX(%rsp) /* really needed? */ + movq $-ENOSYS,RAX(%rsp) /* ptrace can change this for a bad syscall */ movq %rsp,%rdi /* &pt_regs -> arg1 */ call syscall_trace_enter LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */ diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c index abf71d2..7cede7a 100644 --- a/arch/x86/ia32/sys_ia32.c +++ b/arch/x86/ia32/sys_ia32.c @@ -26,51 +26,27 @@ #include <linux/file.h> #include <linux/signal.h> #include <linux/syscalls.h> -#include <linux/resource.h> #include <linux/times.h> #include <linux/utsname.h> -#include <linux/smp.h> #include <linux/smp_lock.h> -#include <linux/sem.h> -#include <linux/msg.h> #include <linux/mm.h> -#include <linux/shm.h> -#include <linux/slab.h> #include <linux/uio.h> -#include <linux/nfs_fs.h> -#include <linux/quota.h> -#include <linux/module.h> -#include <linux/sunrpc/svc.h> -#include <linux/nfsd/nfsd.h> -#include <linux/nfsd/cache.h> -#include <linux/nfsd/xdr.h> -#include <linux/nfsd/syscall.h> #include <linux/poll.h> #include <linux/personality.h> #include <linux/stat.h> -#include <linux/ipc.h> #include <linux/rwsem.h> -#include <linux/binfmts.h> -#include <linux/init.h> -#include <linux/aio_abi.h> -#include <linux/aio.h> #include <linux/compat.h> #include <linux/vfs.h> #include <linux/ptrace.h> #include <linux/highuid.h> -#include <linux/vmalloc.h> -#include <linux/fsnotify.h> #include <linux/sysctl.h> #include <asm/mman.h> #include <asm/types.h> #include <asm/uaccess.h> #include <asm/semaphore.h> #include <asm/atomic.h> -#include <asm/ldt.h> - -#include <net/scm.h> -#include <net/sock.h> #include <asm/ia32.h> +#include <asm/vgtod.h> #define AA(__x) ((unsigned long)(__x)) @@ -804,11 +780,6 @@ asmlinkage long sys32_execve(char __user *name, compat_uptr_t __user *argv, if (IS_ERR(filename)) return error; error = compat_do_execve(filename, argv, envp, regs); - if (error == 0) { - task_lock(current); - current->ptrace &= ~PT_DTRACE; - task_unlock(current); - } putname(filename); return error; } |