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Make several functions be static. Shrink some of the overlong
lines. Use pure tab indents in some places that mixed in spaces.
This gives a minor object code shrink (about 2% on amd64).
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Remove most remaining uses of target->arch_info from ARM
infrastructure, where it hasn't already been updated.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Only type 1 branch instruction has a condition code, not type 2.
Currently they're both tagged with ARM_B which doesn't allow for the
distinction.
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Currently, OpenOCD is always caching the PC value without the T bit.
This means that assignment to the PC register must clear that bit and set
the processor state to Thumb when it is set. And when the PC register
value is transferred to another register or stored into memory then
the T bit must be restored.
Discussion: It is arguable if OpenOCd should have preserved the original
PC value which would have greatly simplified this code. The processor
state could then be obtained simply by getting at bit 0 of the PC. This
however would require special handling elsewhere instead since the T bit
is not always relevant (like when PC is used with ALU insns or as an index
with some addressing modes). It is unclear which way would be simpler in
the end.
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Whenever an unconditional branch with the H bits set to 0b10 is met, the
offset must be combined with the offset from the following opcode and not
ignored like it is now.
A comment in evaluate_b_bl_blx_thumb() suggests that the Thumb2 decoder
would be a simpler solution. That might be true when single-stepping of
Thumb2 code is implemented. But for now this appears to be the simplest
solution to fix Thumb1 support.
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Calling it first with every opcodes and then testing if the opcode
was indeed a branch instruction is wasteful and rather strange.
If ever thumb_pass_branch_condition() has side effects (say, like
printing a debugging traces) then the result would be garbage for most
Thumb instructions which have no condition code.
While at it, let's make the nearby code more readable by reducing some of
the redundant brace noise and reworking the error handling construct.
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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Without this fix, the following code cannot be single stepped:
add ip, pc, #1
bx ip
[thumb code here]
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The LE check is obviously buggy (as easily triggered during some
testing), but I didn't audit the rest of the cases.
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
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changes otherwise.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2640 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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- Replace '\s*$' with ''.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2379 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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git-svn-id: svn://svn.berlios.de/openocd/trunk@2357 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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- Replace '\([^_]\)u32' with '\1uint32_t'.
- Replace '^u32' with 'uint32_t'.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2278 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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- Replace '\([^_]\)u16' with '\1uint16_t'.
- Replace '^u16' with 'uint16_t'.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2277 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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- Replace '\([^_]\)u8' with '\1uint8_t'.
- Replace '^u8' with 'uint8_t'.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2274 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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git-svn-id: svn://svn.berlios.de/openocd/trunk@1714 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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git-svn-id: svn://svn.berlios.de/openocd/trunk@1455 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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git-svn-id: svn://svn.berlios.de/openocd/trunk@1109 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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git-svn-id: svn://svn.berlios.de/openocd/trunk@1097 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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git-svn-id: svn://svn.berlios.de/openocd/trunk@1057 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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git-svn-id: svn://svn.berlios.de/openocd/trunk@523 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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(arm_simulator.c)
- some cosmetic changes
git-svn-id: svn://svn.berlios.de/openocd/trunk@423 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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- arm_simulate_step called incorrect arm_evaluate_opcode when in thumb mode
git-svn-id: svn://svn.berlios.de/openocd/trunk@254 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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- reworked etm/etb into a generic etm part with trace capture drivers (currently only etb supported)
- added XScale debug handler binary to repository
- added Thumb disassembling (thanks to Vincent Palatin for this patch)
- added support for non-CFI compatible flashes to cfi driver (currently only SST39VFxxx devices supported)
This checkin is experimental, not suitable for general use
git-svn-id: svn://svn.berlios.de/openocd/trunk@155 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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- fixed some compiler warnigns in amt_jtagaccel.c, bitbang.c, parport.c
- free working area and register stuff if str7x block write algorithm failed
- check PC after exiting a target algorithm in armv4_5.c
git-svn-id: svn://svn.berlios.de/openocd/trunk@135 b42882b7-edfa-0310-969c-e2dbd0fdcd60
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