commit f666d20249ff381dfc9bf5a621c544560527af40

Author: mjw <mjw@a5019735-40e9-0310-863c-91ae7b9d1cf9>

Date:   Wed May 22 10:21:08 2013 +0000

    Support PTRACE_GET/SET_THREAD_AREA on x86.

    BZ#320063.  (Josh Stone, jistone@redhat.com)

    git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13403 a5019735-40e9-0310-863c-91ae7b9d1cf9

diff --git a/coregrind/m_syswrap/syswrap-x86-linux.c b/coregrind/m_syswrap/syswrap-x86-linux.c

index 7e75899..ed60a15 100644

--- a/coregrind/m_syswrap/syswrap-x86-linux.c

+++ b/coregrind/m_syswrap/syswrap-x86-linux.c

@@ -1118,6 +1118,10 @@ PRE(sys_ptrace)

       PRE_MEM_WRITE( "ptrace(getfpxregs)", ARG4, 

                      sizeof(struct vki_user_fxsr_struct) );

       break;

+   case VKI_PTRACE_GET_THREAD_AREA:

+      PRE_MEM_WRITE( "ptrace(get_thread_area)", ARG4, 

+                     sizeof(struct vki_user_desc) );

+      break;

    case VKI_PTRACE_SETREGS:

       PRE_MEM_READ( "ptrace(setregs)", ARG4, 

 		     sizeof (struct vki_user_regs_struct));

@@ -1130,6 +1134,10 @@ PRE(sys_ptrace)

       PRE_MEM_READ( "ptrace(setfpxregs)", ARG4, 

                      sizeof(struct vki_user_fxsr_struct) );

       break;

+   case VKI_PTRACE_SET_THREAD_AREA:

+      PRE_MEM_READ( "ptrace(set_thread_area)", ARG4, 

+                     sizeof(struct vki_user_desc) );

+      break;

    case VKI_PTRACE_GETEVENTMSG:

       PRE_MEM_WRITE( "ptrace(geteventmsg)", ARG4, sizeof(unsigned long));

       break;

@@ -1167,6 +1175,9 @@ POST(sys_ptrace)

    case VKI_PTRACE_GETFPXREGS:

       POST_MEM_WRITE( ARG4, sizeof(struct vki_user_fxsr_struct) );

       break;

+   case VKI_PTRACE_GET_THREAD_AREA:

+      POST_MEM_WRITE( ARG4, sizeof(struct vki_user_desc) );

+      break;

    case VKI_PTRACE_GETEVENTMSG:

       POST_MEM_WRITE( ARG4, sizeof(unsigned long));

       break;

diff --git a/include/vki/vki-x86-linux.h b/include/vki/vki-x86-linux.h

index 7c072d6..adfcb08 100644

--- a/include/vki/vki-x86-linux.h

+++ b/include/vki/vki-x86-linux.h

@@ -812,6 +812,8 @@ struct vki_shminfo64 {

 #define VKI_PTRACE_SETFPREGS          15

 #define VKI_PTRACE_GETFPXREGS         18

 #define VKI_PTRACE_SETFPXREGS         19

+#define VKI_PTRACE_GET_THREAD_AREA    25

+#define VKI_PTRACE_SET_THREAD_AREA    26

 //----------------------------------------------------------------------

 // From linux-2.6.15.4/include/asm-i386/vm86.h