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b11287e8c5
After b0f82b81fe ("perf: Drop the skip
argument from perf_arch_fetch_regs_caller") the build broke on sparc64
due to the lack of a module symbol export of __perf_arch_fetch_caller_regs.
But that assembler helper can actually be complete eliminated now that
the semantics of this interface have been greatly simplified.
Signed-off-by: David S. Miller <davem@davemloft.net>
38 lines
936 B
C
38 lines
936 B
C
#ifndef __ASM_SPARC_PERF_EVENT_H
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#define __ASM_SPARC_PERF_EVENT_H
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extern void set_perf_event_pending(void);
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#define PERF_EVENT_INDEX_OFFSET 0
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#ifdef CONFIG_PERF_EVENTS
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#include <asm/ptrace.h>
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extern void init_hw_perf_events(void);
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#define perf_arch_fetch_caller_regs(regs, ip) \
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do { \
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unsigned long _pstate, _asi, _pil, _i7, _fp; \
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__asm__ __volatile__("rdpr %%pstate, %0\n\t" \
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"rd %%asi, %1\n\t" \
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"rdpr %%pil, %2\n\t" \
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"mov %%i7, %3\n\t" \
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"mov %%i6, %4\n\t" \
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: "=r" (_pstate), \
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"=r" (_asi), \
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"=r" (_pil), \
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"=r" (_i7), \
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"=r" (_fp)); \
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(regs)->tstate = (_pstate << 8) | \
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(_asi << 24) | (_pil << 20); \
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(regs)->tpc = (ip); \
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(regs)->tnpc = (regs)->tpc + 4; \
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(regs)->u_regs[UREG_I6] = _fp; \
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(regs)->u_regs[UREG_I7] = _i7; \
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} while (0)
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#else
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static inline void init_hw_perf_events(void) { }
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#endif
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#endif
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