Commit graph

16 commits

Author SHA1 Message Date
Thomas Jarosch
789df17dd9 ARM unwinder for thumb: Fix broken MOV opcode
The origin of the register value was never
moved in the desired register state due to a typo ('rhs' vs. 'rhd').

While looking at the code, I noticed the action taken
for the register value is another copy'n'paste error
from the ADD opcode above -> it added to the register value
instead of MOVing the current value.

Patch submitted upstream.

cppcheck reported:
[lib/unwarminder/unwarm_thumb.c:473]: (warning) Redundant assignment of 'state.regData[rhd].o' to itself.

Change-Id: I78cdbf37a191007a3bddbaa350b906dbce2fe671
2015-01-12 19:36:58 +01:00
Thomas Jarosch
799024198f Fix red
Change-Id: Ia7565dac0f6b9703a5dfff723167620deb218bc3
2015-01-12 19:31:39 +01:00
Thomas Jarosch
7361a433d0 ARM unwinder for thumb: Fix broken SUB opcode
Detected while looking through the code.
Patch submitted upstream.

Change-Id: I7ebe7b5f5947cf3df1b054d545dba92829f21b99
2015-01-12 19:26:23 +01:00
Thomas Jarosch
fa592cc725 ARM unwinder: Add missing 'register' variable in debug output
Also fix a wrong format specifier for an unsigned variable.
Detected by cppcheck, patch submitted upstream.

Change-Id: I9b84d91eeb242ed77b53ecc16252c5b35190bb9f
2015-01-12 19:15:08 +01:00
Thomas Jarosch
1589b28afc ARM unwinder: Add missing va_end() call.
Detected by cppcheck, patch submitted upstream.

Change-Id: Ieeec9d2e7e2c22d64c94936958f5a4ff02d3548b
2015-01-12 19:10:24 +01:00
Thomas Jarosch
55a5aab97c Add newlines at the end of the file
Quiet maemo's gcc 4.2.1 compiler warning.

Change-Id: I35dfb2c0cb269b05edd62adf71fe0308a4b9ba5b
2014-12-17 23:34:48 +01:00
Michael Sevakis
bfbec3a3a7 Remove unused return value variable in lib/unwarminder/backtrace.c
Stop the Android warning about it

Change-Id: I2f01220004f128befaa5757786b8de174566cbb5
2014-08-25 14:07:19 -04:00
Boris Gjenero
4077eac839 Fix return address when data_abort_handler skips faulting instruction.
When writing a value to PC, execution continues at that location,
so subtracting 4 returns to the next instruction. Previously, two
instructions after the faulting instruction were being skipped, causing
safe_read functions to return true even if a data abort happened.

Change-Id: I3fd02d54646323ea2050d0504e38f6d22f09c749
2013-05-23 19:51:19 -04:00
Marcin Bukat
a46e0b02c1 unwarminder: make SP and PC visible on smaller screens
Change-Id: I78c0e6edb1ad097154885b9fa93d74616047cbc1
2012-09-05 08:53:48 +02:00
Amaury Pouly
1a4fa1603b unwarminder: fix data_abort_handler (wrong address to UIE)
Change-Id: I060735363f2e408c42a8e11ac1f31dc96e3cb2d6
2012-06-07 14:48:43 +02:00
Bertrik Sikken
08f5224b1b Use shorter lines to show an ARM backtrace (so address fit on the clip zip screen)
Change-Id: Ib36c09a44230fbaaa119f756367f98bdc7756983
2012-05-28 00:51:47 +02:00
Amaury Pouly
d4674ed3b7 arm: implement safe reads by intercepting the data abort handler.
Implement functions to read from a memory location and indicate
failure in case this is not possible. Since we do not have a MMU,
intercept the data abort handler and simply return when the abort
comes from the safe read routines.

Change-Id: I08f2e59898dcac893319a8150d4cf626f3adabbd
Reviewed-on: http://gerrit.rockbox.org/207
Reviewed-by: Marcin Bukat <marcin.bukat@gmail.com>
2012-04-06 13:48:09 +02:00
Amaury Pouly
a54072e299 arm: fix get_sp (missing return)
__get_sp is missing a return! I don't know how it ever worked.
Use "bx lr" since it works in all cases (armp and thumb).

Change-Id: I26011db333a8a5f96276be83e18da7507c501c38
Reviewed-on: http://gerrit.rockbox.org/206
Reviewed-by: Marcin Bukat <marcin.bukat@gmail.com>
2012-04-04 09:21:02 +02:00
Thomas Martitz
f269aa0060 build system: unify/simplify library handling a bit.
libs in $ROOT/lib now add to $(CORE_LIBS) and $(EXTRA_LIBS) and are
automatically linked by the core and codecs/plugins respectively.

Change-Id: Iff482c792a8c8142718f6a16a450c6e2f1497c9a
2012-03-26 22:27:40 +02:00
Thomas Jarosch
9476883d2d Fix sanity check in UnwStartThumb() using the wrong register
cppcheck reported:
[lib/unwarminder/unwarm_thumb.c:399] -> [lib/unwarminder/unwarm_thumb.c:399]: (style) Same expression on both sides of '&&'.

Patch will also be sent to the upstream project.

Change-Id: I57033f290135f4dc09ac7e9b07c31461bc5b471a
Reviewed-on: http://gerrit.rockbox.org/157
Reviewed-by: Thomas Jarosch <tomj@simonv.com>
2012-03-02 18:29:09 +01:00
Marcin Bukat
b4eab59951 Arm stack unwinder
Simplified stack unwinder for ARM. This is port of
http://www.mcternan.me.uk/ArmStackUnwinding/
backtrace() is called from UIE() on native targets
and from panicf() on both native and ARM RaaA.

Change-Id: I8e4b3c02490dd60b30aa372fe842d193b8929ce0
2012-02-22 08:33:26 +01:00