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ARM DPM: share debug reason logic

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No point in both ARM11 and Cortex-A8 having private copies
of the logic sorting out e.g. DBG_REASON_WATCHPOINT.

Add and use a shared routine for this ... there's actually
a bunch more debug entry logic that could be shared, this
is just a start on that.  Note that this routine fixes a
bug observed in the ARM11 code, where some abort mode quirks
were displayed as being an unknown debug reason; and also
silences needless ARM11 chatter.

Likewise with private copies of DSCR ... add one to the DPM
struct.  Save it as part of setting DBG_REASON_* so later
patches can switch over to using that copy.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
This commit is contained in:
David Brownell
2009-12-03 16:08:04 -08:00
parent 6eee0729d7
commit ea7a49cb9b
7 changed files with 59 additions and 99 deletions
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src/target/arm11_dbgtap.h
-2
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@@ -14,8 +14,6 @@ int arm11_add_debug_SCAN_N(struct arm11_common *arm11,
int arm11_read_DSCR(struct arm11_common *arm11);
int arm11_write_DSCR(struct arm11_common *arm11, uint32_t dscr);
enum target_debug_reason arm11_get_DSCR_debug_reason(uint32_t dscr);
int arm11_run_instr_data_prepare(struct arm11_common *arm11);
int arm11_run_instr_data_finish(struct arm11_common *arm11);
int arm11_run_instr_no_data1(struct arm11_common *arm11, uint32_t opcode);