Extend perf_output_sample_regs() to take in perf_regs structure as a parameter instead of pt_regs. Add code to check for arch_regs_mask and dump the arch registers to the output sample.
Cc: Thomas Gleixner <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Arnaldo Carvalho de Melo <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Russell King <[email protected]> Cc: Catalin Marinas <[email protected]> Cc: Will Deacon <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> Cc: Michael Ellerman <[email protected]> Cc: Sukadev Bhattiprolu <[email protected]> Signed-off-by: Madhavan Srinivasan <[email protected]> --- kernel/events/core.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/kernel/events/core.c b/kernel/events/core.c index 274288819829..e16bf4d057d1 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -5371,16 +5371,24 @@ u64 __attribute__((weak)) perf_arch_reg_value(struct perf_arch_regs *regs, static void perf_output_sample_regs(struct perf_output_handle *handle, - struct pt_regs *regs, u64 mask) + struct perf_regs *regs, u64 mask) { int bit; DECLARE_BITMAP(_mask, 64); + u64 arch_regs_mask = regs->arch_regs_mask; bitmap_from_u64(_mask, mask); for_each_set_bit(bit, _mask, sizeof(mask) * BITS_PER_BYTE) { u64 val; - val = perf_reg_value(regs, bit); + val = perf_reg_value(regs->regs, bit); + perf_output_put(handle, val); + } + + bitmap_from_u64(_mask, arch_regs_mask); + for_each_set_bit(bit, _mask, sizeof(mask) * BITS_PER_BYTE) { + u64 val; + val = perf_arch_reg_value(regs->arch_regs, bit); perf_output_put(handle, val); } } @@ -5792,7 +5800,7 @@ void perf_output_sample(struct perf_output_handle *handle, if (abi) { u64 mask = event->attr.sample_regs_user; perf_output_sample_regs(handle, - data->regs_user.regs, + &data->regs_user, mask); } } @@ -5827,7 +5835,7 @@ void perf_output_sample(struct perf_output_handle *handle, u64 mask = event->attr.sample_regs_intr; perf_output_sample_regs(handle, - data->regs_intr.regs, + &data->regs_intr, mask); } } -- 2.7.4
