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Add si_addr_bnd to _sigfault in x86 struct siginfo

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X86 struct siginfo in kernel 3.19 has been changed by

commit ee1b58d36aa1b5a79eaba11f5c3633c88231da83
Author: Qiaowei Ren <qiaowei.ren@intel.com>
Date:   Fri Nov 14 07:18:19 2014 -0800

    mpx: Extend siginfo structure to include bound violation information

    This patch adds new fields about bound violation into siginfo
    structure. si_lower and si_upper are respectively lower bound
    and upper bound when bound violation is caused.

This patch updates x86 struct siginfo to enable GDB with MPX support.

	[BZ #18696]
	* sysdeps/unix/sysv/linux/x86/bits/siginfo.h (_sigfault): Add
	si_addr_bnd.
	(si_lower): New.
	(si_upper): Likewise.
This commit is contained in:
H.J. Lu 2015-07-20 11:54:39 -07:00
parent d87630edc4
commit d4358b51c2
3 changed files with 16 additions and 1 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2015-07-20 H.J. Lu <hongjiu.lu@intel.com>
[BZ #18696]
* sysdeps/unix/sysv/linux/x86/bits/siginfo.h (_sigfault): Add
si_addr_bnd.
(si_lower): New.
(si_upper): Likewise.
2015-07-16 David S. Miller <davem@davemloft.net>
* sysdeps/sparc/fpu/libm-test-ulps: Regenerated.

2
NEWS
View File

@ -27,7 +27,7 @@ Version 2.22
18522, 18527, 18528, 18529, 18530, 18532, 18533, 18534, 18536, 18539,
18540, 18542, 18544, 18545, 18546, 18547, 18549, 18553, 18557, 18558,
18569, 18583, 18585, 18586, 18592, 18593, 18594, 18602, 18612, 18613,
18619, 18633, 18641, 18643, 18648, 18676.
18619, 18633, 18641, 18643, 18648, 18676, 18696.
* Cache information can be queried via sysconf() function on s390 e.g. with
_SC_LEVEL1_ICACHE_SIZE as argument.

7
sysdeps/unix/sysv/linux/x86/bits/siginfo.h
View File

@ -108,6 +108,11 @@ typedef struct
{
void *si_addr; /* Faulting insn/memory ref. */
short int si_addr_lsb; /* Valid LSB of the reported address. */
struct
{
void *_lower;
void *_upper;
} si_addr_bnd;
} _sigfault;
/* SIGPOLL. */
@ -141,6 +146,8 @@ typedef struct
# define si_ptr _sifields._rt.si_sigval.sival_ptr
# define si_addr _sifields._sigfault.si_addr
# define si_addr_lsb _sifields._sigfault.si_addr_lsb
# define si_lower _sifields._sigfault.si_addr_bnd._lower
# define si_upper _sifields._sigfault.si_addr_bnd._upper
# define si_band _sifields._sigpoll.si_band
# define si_fd _sifields._sigpoll.si_fd
# define si_call_addr _sifields._sigsys._call_addr