litmus-rt.git/arch/x86/tools/Makefile, branch v2015.1

x86/build: Supress "Nothing to be done for ..." messages

2014-04-14T09:44:36+00:00

When we build an already built kernel again, arch/x86/syscalls/Makefile
and arch/x86/tools/Makefile emits "Nothing to be done for ..."
messages.

Here is the command log:

  $ make defconfig
     [ snip ]
  $ make
     [ snip ]
  $ make
  make[1]: Nothing to be done for `all'.            <-----
  make[1]: Nothing to be done for `relocs'.         <-----
    CHK     include/config/kernel.release
    CHK     include/generated/uapi/linux/version.h

Besides not emitting those, "all" and "relocs" should be added to PHONY as well.

Signed-off-by: Masahiro Yamada 
Acked-by: Peter Foley 
Acked-by: Michal Marek 
Link: http://lkml.kernel.org/r/1397093742-11144-1-git-send-email-yamada.m@jp.panasonic.com
Signed-off-by: Ingo Molnar

x86, relocs: Refactor the relocs tool to merge 32- and 64-bit ELF

2013-04-16T23:02:58+00:00

Refactor the relocs tool so that the same tool can handle 32- and
64-bit ELF.

Signed-off-by: H. Peter Anvin 
Cc: Kees Cook 
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

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 
Link: http://lkml.kernel.org/r/1365797627-20874-5-git-send-email-keescook@chromium.org
Signed-off-by: H. Peter Anvin

UAPI: x86: Fix the test_get_len tool

2012-10-02T17:01:56+00:00

Fix the x86 test_get_len tool to have the right include paths in the right
order (it includes a non-exported kernel header directly), otherwise errors
like the following occur:

/data/fs/linux-2.6-hdr/include/linux/types.h:18:26: error: conflicting types for 'fd_set'
/usr/include/sys/select.h:78:5: note: previous declaration of 'fd_set' was here

and

/data/fs/linux-2.6-hdr/include/linux/string.h:42:12: error: expected identifier or '(' before '__extension__'

Signed-off-by: David Howells 
Acked-by: Arnd Bergmann 
Acked-by: Thomas Gleixner 
Acked-by: Paul E. McKenney 
Acked-by: Dave Jones

x86, realmode: 16-bit real-mode code support for relocs tool

2012-05-19T02:49:40+00:00

A new option is added to the relocs tool called '--realmode'.
This option causes the generation of 16-bit segment relocations
and 32-bit linear relocations for the real-mode code. When
the real-mode code is moved to the low-memory during kernel
initialization, these relocation entries can be used to
relocate the code properly.

In the assembly code 16-bit segment relocations must be relative
to the 'real_mode_seg' absolute symbol. Linear relocations must be
relative to a symbol prefixed with 'pa_'.

16-bit segment relocation is used to load cs:ip in 16-bit code.
Linear relocations are used in the 32-bit code for relocatable
data references. They are declared in the linker script of the
real-mode code.

The relocs tool is moved to arch/x86/tools/relocs.c, and added new
target archscripts that can be used to build scripts needed building
an architecture.  be compiled before building the arch/x86 tree.

[ hpa: accelerating this because it detects invalid absolute
  relocations, a serious bug in binutils 2.22.52.0.x which currently
  produces bad kernels. ]

Signed-off-by: H. Peter Anvin 
Link: http://lkml.kernel.org/r/1336501366-28617-2-git-send-email-jarkko.sakkinen@intel.com
Signed-off-by: Jarkko Sakkinen 
Signed-off-by: H. Peter Anvin 
Cc:

x86/tools: Fix Makefile to build all test tools

2011-12-05T13:53:13+00:00

Fix arch/x86/tools/Makefile to compile both test tools
correctly. This bug leads build error.

Signed-off-by: Masami Hiramatsu 
Cc: "H. Peter Anvin" 
Cc: yrl.pp-manager.tt@hitachi.com
Link: http://lkml.kernel.org/r/20111205120533.15475.62047.stgit@cloud
Signed-off-by: Ingo Molnar

x86, perf: Add a build-time sanity test to the x86 decoder

2011-11-10T11:38:51+00:00

Add a sanity test of x86 insn decoder against a stream
of randomly generated input, at build time.

This test is also able to reproduce any bug that might
trigger by allowing the passing of random-seed and
iteration-number to the test, or by passing input
which has invalid byte code.

Changes in V2:
 - Code cleanup.
 - Show how to reproduce the error by insn_sanity test.

Signed-off-by: Masami Hiramatsu 
Cc: acme@redhat.com
Cc: ming.m.lin@intel.com
Cc: robert.richter@amd.com
Cc: ravitillo@lbl.gov
Cc: yrl.pp-manager.tt@hitachi.com
Cc: Andi Kleen 
Cc: Peter Zijlstra 
Cc: Stephane Eranian 
Cc: Andi Kleen 
Cc: Peter Zijlstra 
Link: http://lkml.kernel.org/r/20111020140109.20938.92572.stgit@localhost.localdomain
Signed-off-by: Ingo Molnar

x86: insn decoder test checks objdump version

2009-11-21T07:01:04+00:00

Check objdump version before using it for insn decoder build test,
because some older objdump can't decode AVX code correctly.

Signed-off-by: Masami Hiramatsu 
Cc: Ingo Molnar 
Cc: Stephen Rothwell 
Cc: Randy Dunlap 
Cc: Jim Keniston 
LKML-Reference: <20091120171314.6715.30390.stgit@dhcp-100-2-132.bos.redhat.com>
Signed-off-by: H. Peter Anvin

x86: Fix insn decoder test typos

2009-11-21T06:59:36+00:00

Fix postest_verbose to posttest_verbose, and add posttest_64bit option
for CONFIG_64BIT != y, since old command just passed '-' instead
of '-n' when CONFIG_64BIT is not set.

Signed-off-by: Masami Hiramatsu 
Cc: Ingo Molnar 
Cc: Stephen Rothwell 
Cc: Randy Dunlap 
Cc: Jim Keniston 
LKML-Reference: <20091120171307.6715.66099.stgit@dhcp-100-2-132.bos.redhat.com>
Signed-off-by: H. Peter Anvin

x86: Add verbose option to insn decoder test

2009-11-17T06:16:48+00:00

Add verbose option to insn decoder test. This dumps decoded
instruction when building kernel with V=1.

Signed-off-by: Masami Hiramatsu 
Cc: systemtap 
Cc: DLE 
Cc: Stephen Rothwell 
Cc: Randy Dunlap 
Cc: Jim Keniston 
Cc: Stephen Rothwell 
LKML-Reference: <20091116230618.5250.18762.stgit@harusame>
Signed-off-by: Ingo Molnar