linux.git/arch/x86/tools, branch v3.11 Linux kernel source tree x86, relocs: Move __vvar_page from S_ABS to S_REL 2013-06-12T22:14:57+00:00 Kees Cook keescook@chromium.org 2013-06-11T18:56:52+00:00 b1983b0a7578de09211a696802edab83fd253303 The __vvar_page relocation should actually be listed in S_REL instead of S_ABS. Oddly, this didn't always cause things to break, presumably because there are no users for relocation information on 64 bits yet. [ hpa: Not for stable - new code in 3.10 ] Signed-off-by: Kees Cook <keescook@chromium.org> Link: http://lkml.kernel.org/r/20130611185652.GA23674@www.outflux.net Reported-by: Michael Davidson <md@google.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> 
The __vvar_page relocation should actually be listed in S_REL instead
of S_ABS. Oddly, this didn't always cause things to break, presumably
because there are no users for relocation information on 64 bits yet.

[ hpa: Not for stable - new code in 3.10 ]

Signed-off-by: Kees Cook <keescook@chromium.org>
Link: http://lkml.kernel.org/r/20130611185652.GA23674@www.outflux.net
Reported-by: Michael Davidson <md@google.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
x86, relocs: Refactor the relocs tool to merge 32- and 64-bit ELF 2013-04-16T23:02:58+00:00 H. Peter Anvin hpa@linux.intel.com 2013-04-16T23:02:58+00:00 c889ba801dc3b3a0155fa77d567f2c3a6097de1c Refactor the relocs tool so that the same tool can handle 32- and 64-bit ELF. Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> Cc: Kees Cook <keescook@chromium.org> Link: http://lkml.kernel.org/r/1365797627-20874-5-git-send-email-keescook@chromium.org 
Refactor the relocs tool so that the same tool can handle 32- and
64-bit ELF.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Kees Cook <keescook@chromium.org>
Link: http://lkml.kernel.org/r/1365797627-20874-5-git-send-email-keescook@chromium.org
x86, relocs: Build separate 32/64-bit tools 2013-04-16T22:22:01+00:00 Kees Cook keescook@chromium.org 2013-04-12T20:13:45+00:00 17c961f7702ff6037b66bb2e5f3ddd58de4ce7e5 Since the ELF structures and access macros change size based on 32 vs 64 bits, build a separate 32-bit relocs tool (for handling realmode and 32-bit relocations), and a 64-bit relocs tool (for handling 64-bit kernel relocations). Signed-off-by: Kees Cook <keescook@chromium.org> Link: http://lkml.kernel.org/r/1365797627-20874-5-git-send-email-keescook@chromium.org Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> 
Since the ELF structures and access macros change size based on 32 vs
64 bits, build a separate 32-bit relocs tool (for handling realmode
and 32-bit relocations), and a 64-bit relocs tool (for handling 64-bit
kernel relocations).

Signed-off-by: Kees Cook <keescook@chromium.org>
Link: http://lkml.kernel.org/r/1365797627-20874-5-git-send-email-keescook@chromium.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
x86, relocs: Add 64-bit ELF support to relocs tool 2013-04-16T22:19:22+00:00 Kees Cook keescook@chromium.org 2013-04-12T20:13:44+00:00 946166af95d1defacfbc21e7c902d0556a2a7660 This adds the ability to process relocations from the 64-bit kernel ELF, if built with ELF_BITS=64 defined. The special case for the percpu area is handled, along with some other symbols specific to the 64-bit kernel. Based on work by Neill Clift and Michael Davidson. Signed-off-by: Kees Cook <keescook@chromium.org> Link: http://lkml.kernel.org/r/1365797627-20874-4-git-send-email-keescook@chromium.org Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> 
This adds the ability to process relocations from the 64-bit kernel ELF,
if built with ELF_BITS=64 defined. The special case for the percpu area is
handled, along with some other symbols specific to the 64-bit kernel.

Based on work by Neill Clift and Michael Davidson.

Signed-off-by: Kees Cook <keescook@chromium.org>
Link: http://lkml.kernel.org/r/1365797627-20874-4-git-send-email-keescook@chromium.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
x86, relocs: Consolidate processing logic 2013-04-16T22:19:13+00:00 Kees Cook keescook@chromium.org 2013-04-12T20:13:43+00:00 5d442e63d6a1b5736fd48a907bd7d2d87e411816 Instead of counting and then processing relocations, do it in a single pass. This splits the processing logic into separate functions for realmode and 32-bit (and paves the way for 64-bit). Also extracts helper functions when emitting relocations. Based on work by Neill Clift and Michael Davidson. Signed-off-by: Kees Cook <keescook@chromium.org> Link: http://lkml.kernel.org/r/1365797627-20874-3-git-send-email-keescook@chromium.org Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> 
Instead of counting and then processing relocations, do it in a single
pass. This splits the processing logic into separate functions for
realmode and 32-bit (and paves the way for 64-bit). Also extracts helper
functions when emitting relocations.

Based on work by Neill Clift and Michael Davidson.

Signed-off-by: Kees Cook <keescook@chromium.org>
Link: http://lkml.kernel.org/r/1365797627-20874-3-git-send-email-keescook@chromium.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
x86, relocs: Generalize ELF structure names 2013-04-16T22:19:06+00:00 Kees Cook keescook@chromium.org 2013-04-12T20:13:42+00:00 bf11655cf2ecdcfaacbc8324da4a3edfe276ba9d In preparation for making the reloc tool operate on 64-bit relocations, generalize the structure names for easy recompilation via #defines. Based on work by Neill Clift and Michael Davidson. Signed-off-by: Kees Cook <keescook@chromium.org> Link: http://lkml.kernel.org/r/1365797627-20874-2-git-send-email-keescook@chromium.org Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> 
In preparation for making the reloc tool operate on 64-bit relocations,
generalize the structure names for easy recompilation via #defines.

Based on work by Neill Clift and Michael Davidson.

Signed-off-by: Kees Cook <keescook@chromium.org>
Link: http://lkml.kernel.org/r/1365797627-20874-2-git-send-email-keescook@chromium.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-02-04T20:57:09+00:00 Linus Torvalds torvalds@linux-foundation.org 2013-02-04T20:57:09+00:00 51c1abb95fe110560f6f6fd25dd9265f861c1e7a Pull perf fixes from Ingo Molnar: "Three fixlets and two small (and low risk) hw-enablement changes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf: Fix event group context move x86/perf: Add IvyBridge EP support perf/x86: Fix P6 driver section warning arch/x86/tools/insn_sanity.c: Identify source of messages perf/x86: Enable Intel Lincroft/Penwell/Cloverview Atom support 
Pull perf fixes from Ingo Molnar:
 "Three fixlets and two small (and low risk) hw-enablement changes"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf: Fix event group context move
  x86/perf: Add IvyBridge EP support
  perf/x86: Fix P6 driver section warning
  arch/x86/tools/insn_sanity.c: Identify source of messages
  perf/x86: Enable Intel Lincroft/Penwell/Cloverview Atom support
x86/boot: Fix minor fd leakage in tools/relocs.c 2013-01-27T18:24:28+00:00 Cong Ding dinggnu@gmail.com 2013-01-14T17:13:35+00:00 65315d4889d403ea025081d8ca85ddf7b9c10f39 The opened file should be closed. Signed-off-by: Cong Ding <dinggnu@gmail.com> Cc: Kusanagi Kouichi <slash@ac.auone-net.jp> Cc: Jarkko Sakkinen <jarkko.sakkinen@intel.com> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Matt Fleming <matt.fleming@intel.com> Link: http://lkml.kernel.org/r/1358183628-27784-1-git-send-email-dinggnu@gmail.com Signed-off-by: Ingo Molnar <mingo@kernel.org> 
The opened file should be closed.

Signed-off-by: Cong Ding <dinggnu@gmail.com>
Cc: Kusanagi Kouichi <slash@ac.auone-net.jp>
Cc: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Matt Fleming <matt.fleming@intel.com>
Link: http://lkml.kernel.org/r/1358183628-27784-1-git-send-email-dinggnu@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arch/x86/tools/insn_sanity.c: Identify source of messages 2013-01-24T14:57:53+00:00 Andrew Morton akpm@linux-foundation.org 2012-12-18T20:22:12+00:00 55a6e622e66a27ab106fae00cac15ba630e7fbd4 The kernel build prints: Building modules, stage 2. TEST posttest MODPOST 3821 modules TEST posttest Success: decoded and checked 1000000 random instructions with 0 errors (seed:0xaac4bc47) CC arch/x86/boot/a20.o CC arch/x86/boot/cmdline.o AS arch/x86/boot/copy.o HOSTCC arch/x86/boot/mkcpustr CC arch/x86/boot/cpucheck.o CC arch/x86/boot/early_serial_console.o which is irritating because you don't know what program is proudly pronouncing its success. So, as described in "console mode programming user interface guidelines version 101" which doesn't exist, change this program to identify the source of its messages. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> 
The kernel build prints:

  Building modules, stage 2.
  TEST    posttest
  MODPOST 3821 modules
  TEST    posttest
 Success: decoded and checked 1000000 random instructions with 0
 errors (seed:0xaac4bc47)   CC      arch/x86/boot/a20.o
  CC      arch/x86/boot/cmdline.o
  AS      arch/x86/boot/copy.o
  HOSTCC  arch/x86/boot/mkcpustr
  CC      arch/x86/boot/cpucheck.o
  CC      arch/x86/boot/early_serial_console.o

which is irritating because you don't know what program is
proudly pronouncing its success.

So, as described in "console mode programming user interface
guidelines version 101" which doesn't exist, change this program
to identify the source of its messages.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
x86: Fix the error of using "const" in gen-insn-attr-x86.awk 2012-12-10T18:31:24+00:00 Cong Ding dinggnu@gmail.com 2012-12-09T08:21:04+00:00 28a793892296ca3367193c7a7de1714f80049fd0 The original version code causes following sparse warnings: arch/x86/lib/inat-tables.c:1080:25: warning: duplicate const arch/x86/lib/inat-tables.c:1095:25: warning: duplicate const arch/x86/lib/inat-tables.c:1118:25: warning: duplicate const for the variables inat_escape_tables, inat_group_tables, and inat_avx_tables in the code generated by gen-insn-attr-x86.awk. The author Masami Hiramutsu says here is to make both the value pointed by the pointers and the pointers itself read-only, so we move the "const" to be after the "*". Signed-off-by: Cong Ding <dinggnu@gmail.com> Link: http://lkml.kernel.org/r/20121209082103.GA9181@gmail.com Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> 
The original version code causes following sparse warnings:
arch/x86/lib/inat-tables.c:1080:25: warning: duplicate const
arch/x86/lib/inat-tables.c:1095:25: warning: duplicate const
arch/x86/lib/inat-tables.c:1118:25: warning: duplicate const

for the variables inat_escape_tables, inat_group_tables, and inat_avx_tables
in the code generated by gen-insn-attr-x86.awk.

The author Masami Hiramutsu says here is to make both the value pointed by the
pointers and the pointers itself read-only, so we move the "const" to be after
the "*".

Signed-off-by: Cong Ding <dinggnu@gmail.com>
Link: http://lkml.kernel.org/r/20121209082103.GA9181@gmail.com
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>