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authorLinus Torvalds <torvalds@linux-foundation.org>2014-12-10 09:34:43 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-12-10 09:34:43 -0800
commit3eb5b893ebec7325ac9e6b8e4864af89a9ca1ed1 (patch)
treec1ced8c2c3eb68f14001fcca35d5b0eed8277a52 /arch/ia64
parent9e66645d72d3c395da92b0f8855c787f4b5f0e89 (diff)
parent9f7789f845cc100dd0d94fa1aa083e3373dc03db (diff)
downloadlinux-3eb5b893ebec7325ac9e6b8e4864af89a9ca1ed1.tar.gz
Merge branch 'x86-mpx-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 MPX support from Thomas Gleixner:
 "This enables support for x86 MPX.

  MPX is a new debug feature for bound checking in user space.  It
  requires kernel support to handle the bound tables and decode the
  bound violating instruction in the trap handler"

* 'x86-mpx-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  asm-generic: Remove asm-generic arch_bprm_mm_init()
  mm: Make arch_unmap()/bprm_mm_init() available to all architectures
  x86: Cleanly separate use of asm-generic/mm_hooks.h
  x86 mpx: Change return type of get_reg_offset()
  fs: Do not include mpx.h in exec.c
  x86, mpx: Add documentation on Intel MPX
  x86, mpx: Cleanup unused bound tables
  x86, mpx: On-demand kernel allocation of bounds tables
  x86, mpx: Decode MPX instruction to get bound violation information
  x86, mpx: Add MPX-specific mmap interface
  x86, mpx: Introduce VM_MPX to indicate that a VMA is MPX specific
  x86, mpx: Add MPX to disabled features
  ia64: Sync struct siginfo with general version
  mips: Sync struct siginfo with general version
  mpx: Extend siginfo structure to include bound violation information
  x86, mpx: Rename cfg_reg_u and status_reg
  x86: mpx: Give bndX registers actual names
  x86: Remove arbitrary instruction size limit in instruction decoder
Diffstat (limited to 'arch/ia64')
-rw-r--r--arch/ia64/include/uapi/asm/siginfo.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/ia64/include/uapi/asm/siginfo.h b/arch/ia64/include/uapi/asm/siginfo.h
index 4ea6225196bb..bce9bc1a66c4 100644
--- a/arch/ia64/include/uapi/asm/siginfo.h
+++ b/arch/ia64/include/uapi/asm/siginfo.h
@@ -63,6 +63,10 @@ typedef struct siginfo {
 			unsigned int _flags;	/* see below */
 			unsigned long _isr;	/* isr */
 			short _addr_lsb;	/* lsb of faulting address */
+			struct {
+				void __user *_lower;
+				void __user *_upper;
+			} _addr_bnd;
 		} _sigfault;
 
 		/* SIGPOLL */
@@ -110,9 +114,9 @@ typedef struct siginfo {
 /*
  * SIGSEGV si_codes
  */
-#define __SEGV_PSTKOVF	(__SI_FAULT|3)	/* paragraph stack overflow */
+#define __SEGV_PSTKOVF	(__SI_FAULT|4)	/* paragraph stack overflow */
 #undef NSIGSEGV
-#define NSIGSEGV	3
+#define NSIGSEGV	4
 
 #undef NSIGTRAP
 #define NSIGTRAP	4