#include #include "perf_regs.h" #include "event.h" const struct sample_reg __weak sample_reg_masks[] = { SMPL_REG_END }; #ifdef HAVE_PERF_REGS_SUPPORT int perf_reg_value(u64 *valp, struct regs_dump *regs, int id) { int i, idx = 0; u64 mask = regs->mask; if (regs->cache_mask & (1ULL << id)) goto out; if (!(mask & (1ULL << id))) return -EINVAL; for (i = 0; i < id; i++) { if (mask & (1ULL << i)) idx++; } regs->cache_mask |= (1ULL << id); regs->cache_regs[id] = regs->regs[idx]; out: *valp = regs->cache_regs[id]; return 0; } #endif
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