Dmitry V. Levin
d6c71dd061
Indent the C preprocessor directives to reflect their nesting using the following script: $ cppi -l $(git grep -El '^[[:space:]]*#[[:space:]]*(if|ifdef|ifndef|elif|else|endif|define|pragma)[[:space:]]' |grep -v '\.sh$') |while read f; do cppi < "$f" > "$f".cppi; mv "$f".cppi "$f" done
134 lines
2.5 KiB
C
134 lines
2.5 KiB
C
/*
|
|
* Copyright (c) 2018 The strace developers.
|
|
* All rights reserved.
|
|
*
|
|
* SPDX-License-Identifier: LGPL-2.1-or-later
|
|
*/
|
|
|
|
#include "defs.h"
|
|
|
|
#include <linux/ioctl.h>
|
|
|
|
#include "perf_event_struct.h"
|
|
|
|
#define XLAT_MACROS_ONLY
|
|
#include "xlat/perf_ioctl_cmds.h"
|
|
#undef XLAT_MACROS_ONLY
|
|
|
|
#include "xlat/perf_ioctl_flags.h"
|
|
|
|
#include MPERS_DEFS
|
|
|
|
static int
|
|
perf_ioctl_query_bpf(struct tcb *const tcp, const kernel_ulong_t arg)
|
|
{
|
|
uint32_t info;
|
|
|
|
if (entering(tcp)) {
|
|
tprints(", ");
|
|
|
|
if (umove_or_printaddr(tcp, arg, &info))
|
|
return RVAL_IOCTL_DECODED;
|
|
|
|
tprintf("{ids_len=%u, ", info);
|
|
|
|
return 0;
|
|
}
|
|
|
|
if (syserror(tcp) ||
|
|
umove(tcp, arg + offsetof(struct perf_event_query_bpf, prog_cnt),
|
|
&info)) {
|
|
tprints("...}");
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
|
|
tprintf("prog_cnt=%u, ids=", info);
|
|
|
|
print_array(tcp, arg + offsetof(struct perf_event_query_bpf, ids), info,
|
|
&info, sizeof(info),
|
|
tfetch_mem, print_uint32_array_member, NULL);
|
|
|
|
tprints("}");
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
|
|
static int
|
|
perf_ioctl_modify_attributes(struct tcb *const tcp, const kernel_ulong_t arg)
|
|
{
|
|
tprints(", ");
|
|
if (!fetch_perf_event_attr(tcp, arg))
|
|
print_perf_event_attr(tcp, arg);
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
}
|
|
|
|
MPERS_PRINTER_DECL(int, perf_ioctl,
|
|
struct tcb *const tcp, const unsigned int code,
|
|
const kernel_ulong_t arg)
|
|
{
|
|
switch (code) {
|
|
case PERF_EVENT_IOC_ENABLE:
|
|
case PERF_EVENT_IOC_DISABLE:
|
|
case PERF_EVENT_IOC_RESET:
|
|
tprints(", ");
|
|
printflags(perf_ioctl_flags, arg, "PERF_IOC_FLAG_???");
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
|
|
case PERF_EVENT_IOC_REFRESH:
|
|
tprintf(", %d", (int) arg);
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
|
|
case PERF_EVENT_IOC_PERIOD:
|
|
tprints(", ");
|
|
printnum_int64(tcp, arg, "%" PRIu64);
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
|
|
case PERF_EVENT_IOC_SET_OUTPUT:
|
|
case PERF_EVENT_IOC_SET_BPF:
|
|
tprintf(", ");
|
|
printfd(tcp, (int) arg);
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
|
|
case PERF_EVENT_IOC_PAUSE_OUTPUT:
|
|
tprintf(", %" PRI_klu, arg);
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
|
|
/*
|
|
* The following ioctl requests are personality-specific
|
|
* due to the pointer size.
|
|
*/
|
|
case PERF_EVENT_IOC_SET_FILTER:
|
|
tprints(", ");
|
|
printstr_ex(tcp, arg, get_pagesize(), QUOTE_0_TERMINATED);
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
|
|
case PERF_EVENT_IOC_ID:
|
|
if (entering(tcp)) {
|
|
tprints(", ");
|
|
|
|
return 0;
|
|
}
|
|
|
|
printnum_int64(tcp, arg, "%" PRIu64);
|
|
|
|
return RVAL_IOCTL_DECODED;
|
|
|
|
case PERF_EVENT_IOC_QUERY_BPF:
|
|
return perf_ioctl_query_bpf(tcp, arg);
|
|
|
|
case PERF_EVENT_IOC_MODIFY_ATTRIBUTES:
|
|
return perf_ioctl_modify_attributes(tcp, arg);
|
|
|
|
default:
|
|
return RVAL_DECODED;
|
|
}
|
|
}
|