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debug_core,x86,blackfin: Clean up hw debug disable API

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The kgdb_disable_hw_debug() was an architecture specific function for
disabling all hardware breakpoints on a per cpu basis when entering
the debug core.

This patch will remove the weak function kdbg_disable_hw_debug() and
change it into a call back which lives with the rest of hw breakpoint
call backs in struct kgdb_arch.

Signed-off-by: Dongdong Deng <dongdong.deng@windriver.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
This commit is contained in:
Dongdong Deng 2010-08-18 06:02:00 -05:00 • committed by Jason Wessel
parent 578bd4dfcd
commit d7ba979d45
4 changed files with 10 additions and 25 deletions
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16
kernel/debug/debug_core.c
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@ -209,18 +209,6 @@ int __weak kgdb_skipexception(int exception, struct pt_regs *regs)
return 0;
}
/**
* kgdb_disable_hw_debug - Disable hardware debugging while we in kgdb.
* @regs: Current &struct pt_regs.
*
* This function will be called if the particular architecture must
* disable hardware debugging while it is processing gdb packets or
* handling exception.
*/
void __weak kgdb_disable_hw_debug(struct pt_regs *regs)
{
}
/*
* Some architectures need cache flushes when we set/clear a
* breakpoint:
@ -484,7 +472,9 @@ static int kgdb_cpu_enter(struct kgdb_state *ks, struct pt_regs *regs,
atomic_inc(&masters_in_kgdb);
else
atomic_inc(&slaves_in_kgdb);
kgdb_disable_hw_debug(ks->linux_regs);
if (arch_kgdb_ops.disable_hw_break)
arch_kgdb_ops.disable_hw_break(regs);
acquirelock:
/*