Commit graph

6 commits

Author SHA1 Message Date
Heinrich Schuchardt
0c1456d571 ARM: correct detection of thumb mode
When a crash occurs in thumb mode the crash dump is incorrect. This is due
to the usage of a non-existing configuration variable CONFIG_ARM_THUMB in
the definition of macro thumb_mode(regs).

Use CONFIG_IS_ENABLED(SYS_THUMB_BUILD) to detect that the code has been
compiled for thumb mode. Remove ARM_THUMB from config_whitelist.txt.

With the patch crash dumps indicate thumb mode correctly.

On a system with thumb mode:

=> exception unaligned
data abort
pc : [<8f7a2b52>]          lr : [<8f7ab1ef>]
reloc pc : [<1780cb52>]    lr : [<178151ef>]
sp : 8ed8c3f8  ip : 8f7a2b4d     fp : 00000002
r10: 8f7f8228  r9 : 8ed95ea8     r8 : 8ed99488
r7 : 8f7ab141  r6 : 00000000     r5 : 8ed8c3f9  r4 : 8f7f6390
r3 : 8ed9948c  r2 : 00000001     r1 : 00000000  r0 : 8f7f6390
Flags: nzCv  IRQs off  FIQs off  Mode SVC_32 (T)
Code: 8f7e 466d f105 0501 (e9d5) 6700

The Flags line has '(T)' and in the Code line the output is in u16 groups.

On a system without thumb mode:

=> exception breakpoint
prefetch abort
pc : [<7ff5a5c8>]          lr : [<7ff675ec>]
reloc pc : [<0000e5c8>]    lr : [<0001b5ec>]
sp : 7ee0ad80  ip : 7ff5a5cc     fp : 7ff674cc
r10: 00000002  r9 : 7ef0bed8     r8 : 7ffd6214
r7 : 7ef0e080  r6 : 00000000     r5 : 7ffd4090  r4 : 00000000
r3 : 7ef0e084  r2 : 00000001     r1 : 00000000  r0 : 7ffd4090
Flags: nzCv  IRQs off  FIQs off  Mode SVC_32
Code: e1a0500d e2855001 e1c560d0 e3a00001 (e12fff1e)

The Flags line does not show '(T)' and in the Code line the output is in
u32 groups.

Reported-by: Marek Vasut <marex@denx.de>
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Marek Vasut <marex@denx.de>
2019-07-18 11:31:24 -04:00
Stephen Warren
3e3b2b4776 ARM: define MON_MODE
Add a MON_MODE define for ARM's monitor mode. This can be used later by
a secure monitor to avoid hard-coding mode IDs.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>
2018-07-26 13:15:30 -07:00
Marc Zyngier
b726d22da9 ARM: add missing HYP mode constant
In order to be able to use the various mode constants (far more
readable than random hex values), add the missing HYP and A
values.

Also update arm/lib/interrupts.c to display HYP instead of an
unknown value.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
2014-07-28 17:06:35 +02:00
David Feng
0ae7653128 arm64: core support
Relocation code based on a patch by Scott Wood, which is:
Signed-off-by: Scott Wood <scottwood@freescale.com>

Signed-off-by: David Feng <fenghua@phytium.com.cn>
2014-01-09 16:08:44 +01:00
Masahiro Yamada
643aae1406 include: delete include/linux/config.h
Linux Kernel abolished include/linux/config.h long time ago.
(around version v2.6.18..v2.6.19)

We don't need to provide Linux copatibility any more.

This commit deletes include/linux/config.h
and fixes source files not to include this.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-11-08 15:25:13 -05:00
Peter Tyser
819833af39 Move architecture-specific includes to arch/$ARCH/include/asm
This helps to clean up the include/ directory so that it only contains
non-architecture-specific headers and also matches Linux's directory
layout which many U-Boot developers are already familiar with.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
2010-04-13 09:13:12 +02:00
Renamed from include/asm-arm/proc-armv/ptrace.h (Browse further)