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Add support for AT_HWCAP2 auxv entry

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Recent ppc64 Linux kernels provide a new auxv entry AT_HWCAP2,
which is currently not recognized by GDB, causing every use of
"info auxv" to show an error.

This commit adds the AT_HWCAP2 define to include/elf/common.h
and handles it in GDB.

include/elf/ChangeLog:

	* common.h (AT_HWCAP2): Define.

gdb/ChangeLog:

	* auxv.c (fprint_target_auxv): Handle AT_HWCAP2.
This commit is contained in:
Ulrich Weigand 2014-01-30 19:12:35 +01:00
parent eaa9d1ad0e
commit 718ee4dc9b
4 changed files with 10 additions and 0 deletions
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4
gdb/ChangeLog
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@ -1,3 +1,7 @@
2014-01-30 Ulrich Weigand  <uweigand@de.ibm.com>
* auxv.c (fprint_target_auxv): Handle AT_HWCAP2.
2014-01-29 Jose E. Marchesi <jose.marchesi@oracle.com>
* sparc64-linux-tdep.c (sparc64_linux_step_trap): Get PC from

1
gdb/auxv.c
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@ -442,6 +442,7 @@ fprint_target_auxv (struct ui_file *file, struct target_ops *ops)
TAG (AT_IGNOREPPC, _("Entry should be ignored"), dec);
TAG (AT_BASE_PLATFORM, _("String identifying base platform"), str);
TAG (AT_RANDOM, _("Address of 16 random bytes"), hex);
TAG (AT_HWCAP2, _("Extension of AT_HWCAP"), hex);
TAG (AT_EXECFN, _("File name of executable"), str);
TAG (AT_SECURE, _("Boolean, was exec setuid-like?"), dec);
TAG (AT_SYSINFO, _("Special system info/entry points"), hex);

4
include/elf/ChangeLog
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@ -1,3 +1,7 @@
2014-01-30 Ulrich Weigand <uweigand@de.ibm.com>
* common.h (AT_HWCAP2): Define.
2013-12-13 Kuan-Lin Chen <kuanlinchentw@gmail.com>
Wei-Cheng Wang <cole945@gmail.com>

1
include/elf/common.h
View File

@ -959,6 +959,7 @@
#define AT_BASE_PLATFORM 24 /* String identifying real platform,
may differ from AT_PLATFORM. */
#define AT_RANDOM 25 /* Address of 16 random bytes. */
#define AT_HWCAP2 26 /* Extension of AT_HWCAP. */
#define AT_EXECFN 31 /* Filename of executable. */
/* Pointer to the global system page used for system calls and other
nice things. */