linux-toradex.git/arch/x86/tools/Makefile, branch v3.2.34

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

2012-05-30T23:44:08+00:00

commit 6520fe5564acf07ade7b18a1272db1184835c487 upstream.

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: 
[bwh: Backported to 3.2:
 - Adjust context (no archheaders; no insn_sanity)
 - Expand put_unaligned_le32()]
Signed-off-by: Ben Hutchings

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

x86, instruction decoder: Fix test_get_len build rules

2009-10-21T12:42:56+00:00

Add the kernel source include file as well to the include files
search path, to fix this build bug:

 In file included from arch/x86/tools/test_get_len.c:28:
   arch/x86/lib/insn.c:21:26: error: linux/string.h: No such file or directory

Cc: Masami Hiramatsu 
Cc: systemtap
Cc: DLE 
Cc: Jim Keniston 
Cc: Frederic Weisbecker 
LKML-Reference: <20091020165531.4145.21872.stgit@dhcp-100-2-132.bos.redhat.com>
Signed-off-by: Ingo Molnar

x86: Allow x86-32 instruction decoder selftest on x86-64

2009-09-04T16:14:04+00:00

Pass $(CONFIG_64BIT) to the x86 insn decoder selftest in case we are
decoding 32bit code on x86-64, which will happen when building kernel
with ARCH=i386 on x86-64.

Signed-off-by: Masami Hiramatsu 
Cc: Jim Keniston 
Cc: Ingo Molnar 
LKML-Reference: <20090828221319.8778.88508.stgit@localhost.localdomain>
Signed-off-by: Frederic Weisbecker

x86: Fix x86 instruction decoder selftest to check only .text

2009-08-27T00:32:44+00:00

Fix x86 instruction decoder selftest to check only .text because other
sections (e.g. .notes) will have random bytes which don't need to be
checked.

Signed-off-by: Masami Hiramatsu 
Cc: Jim Keniston 
Cc: H. Peter Anvin 
Cc: Ananth N Mavinakayanahalli 
Cc: Avi Kivity 
Cc: Andi Kleen 
Cc: Christoph Hellwig 
Cc: Frank Ch. Eigler 
Cc: Ingo Molnar 
Cc: Jason Baron 
Cc: K.Prasad 
Cc: Lai Jiangshan 
Cc: Li Zefan 
Cc: Przemysław Pawełczyk 
Cc: Roland McGrath 
Cc: Sam Ravnborg 
Cc: Srikar Dronamraju 
Cc: Steven Rostedt 
Cc: Tom Zanussi 
Cc: Vegard Nossum 
LKML-Reference: <20090821194307.12478.76938.stgit@localhost.localdomain>
Signed-off-by: Frederic Weisbecker

x86: X86 instruction decoder build-time selftest

2009-08-26T22:35:56+00:00

Add a user-space selftest of x86 instruction decoder at kernel build
time.
When CONFIG_X86_DECODER_SELFTEST=y, Kbuild builds a test harness of x86
instruction decoder and performs it after building vmlinux.
The test compares the results of objdump and x86 instruction decoder
code and check there are no differences.

Signed-off-by: Masami Hiramatsu 
Signed-off-by: Jim Keniston 
Cc: Ananth N Mavinakayanahalli 
Cc: Avi Kivity 
Cc: Andi Kleen 
Cc: Christoph Hellwig 
Cc: Frank Ch. Eigler 
Cc: H. Peter Anvin 
Cc: Ingo Molnar 
Cc: Jason Baron 
Cc: K.Prasad 
Cc: Lai Jiangshan 
Cc: Li Zefan 
Cc: Przemysław Pawełczyk 
Cc: Roland McGrath 
Cc: Sam Ravnborg 
Cc: Srikar Dronamraju 
Cc: Steven Rostedt 
Cc: Tom Zanussi 
Cc: Vegard Nossum 
LKML-Reference: <20090813203421.31965.29006.stgit@localhost.localdomain>
Signed-off-by: Frederic Weisbecker