mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-26 06:04:14 +08:00
d451a205da
SDT marker argument is in N@OP format. N is the size of argument and OP is the actual assembly operand. OP is arch dependent component and hence it's parsing logic also should be placed under tools/perf/arch/. Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexis Berlemont <alexis.berlemont@gmail.com> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20170328094754.3156-3-ravi.bangoria@linux.vnet.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
40 lines
694 B
C
40 lines
694 B
C
#include <errno.h>
|
|
#include "perf_regs.h"
|
|
#include "event.h"
|
|
|
|
const struct sample_reg __weak sample_reg_masks[] = {
|
|
SMPL_REG_END
|
|
};
|
|
|
|
int __weak arch_sdt_arg_parse_op(char *old_op __maybe_unused,
|
|
char **new_op __maybe_unused)
|
|
{
|
|
return SDT_ARG_SKIP;
|
|
}
|
|
|
|
#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
|