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hw-breakpoints: Provide an off-case for counter_arch_bp()

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If an arch doesn't support the hw breakpoints, counter_arch_bp()
has no off case to cover the missing breakpoint info structure
from the perf event. The result is a build error in non-x86
configs.

Reported-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Prasad <prasad@linux.vnet.ibm.com>
LKML-Reference: <1258114575-32655-1-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Prasad <prasad@linux.vnet.ibm.com>
This commit is contained in:
Frederic Weisbecker 2009-11-13 13:16:15 +01:00 committed by Ingo Molnar
parent 59d8eb53ea
commit 687b16fb61
1 changed files with 10 additions and 5 deletions
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15
include/linux/hw_breakpoint.h
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@ -16,11 +16,6 @@ enum {
HW_BREAKPOINT_X = 4,
};
static inline struct arch_hw_breakpoint *counter_arch_bp(struct perf_event *bp)
{
return &bp->hw.info;
}
static inline unsigned long hw_breakpoint_addr(struct perf_event *bp)
{
return bp->attr.bp_addr;
@ -83,6 +78,11 @@ extern void release_bp_slot(struct perf_event *bp);
extern void flush_ptrace_hw_breakpoint(struct task_struct *tsk);
static inline struct arch_hw_breakpoint *counter_arch_bp(struct perf_event *bp)
{
return &bp->hw.info;
}
#else /* !CONFIG_HAVE_HW_BREAKPOINT */
static inline struct perf_event *
@ -126,6 +126,11 @@ static inline void release_bp_slot(struct perf_event *bp) { }
static inline void flush_ptrace_hw_breakpoint(struct task_struct *tsk) { }
static inline struct arch_hw_breakpoint *counter_arch_bp(struct perf_event *bp)
{
return NULL;
}
#endif /* CONFIG_HAVE_HW_BREAKPOINT */
#endif /* _LINUX_HW_BREAKPOINT_H */