freebsd-dev/usr.bin/procstat/procstat_auxv.c
Mitchell Horne 8a250c7568 procstat: Recognize HWCAP and HWCAP2 with auxv command
The two most recent additions to the elf auxiliary vector are
HWCAP and HWCAP2 which describe platform specific cpu capabilities.

Make procstat recognize these fields so that they aren't displayed
as UNKNOWN.

Reviewed by:	trociny, markj
Approved by:	markj (mentor)
MFC after:	3 days
Differential Revision:	https://reviews.freebsd.org/D20582
2019-06-11 00:59:46 +00:00

210 lines
6.3 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2011 Mikolaj Golub
* Copyright (c) 2015 Allan Jude <allanjude@freebsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/elf.h>
#include <sys/sysctl.h>
#include <sys/user.h>
#include <vm/vm.h>
#include <err.h>
#include <errno.h>
#include <libprocstat.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "procstat.h"
void
procstat_auxv(struct procstat *procstat, struct kinfo_proc *kipp)
{
Elf_Auxinfo *auxv;
u_int count, i;
static char prefix[256];
if ((procstat_opts & PS_OPT_NOHEADER) == 0)
xo_emit("{T:/%5s %-16s %-16s %-16s}\n", "PID", "COMM", "AUXV",
"VALUE");
auxv = procstat_getauxv(procstat, kipp, &count);
if (auxv == NULL)
return;
snprintf(prefix, sizeof(prefix), "%5d %-16s", kipp->ki_pid,
kipp->ki_comm);
xo_emit("{e:process_id/%5d/%d}{e:command/%-16s/%s}", kipp->ki_pid,
kipp->ki_comm);
for (i = 0; i < count; i++) {
switch(auxv[i].a_type) {
case AT_NULL:
return;
case AT_IGNORE:
break;
case AT_EXECFD:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_EXECFD/%ld}\n",
prefix, "AT_EXECFD", (long)auxv[i].a_un.a_val);
break;
case AT_PHDR:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PHDR/%p}\n",
prefix, "AT_PHDR", auxv[i].a_un.a_ptr);
break;
case AT_PHENT:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PHENT/%ld}\n",
prefix, "AT_PHENT", (long)auxv[i].a_un.a_val);
break;
case AT_PHNUM:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PHNUM/%ld}\n",
prefix, "AT_PHNUM", (long)auxv[i].a_un.a_val);
break;
case AT_PAGESZ:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PAGESZ/%ld}\n",
prefix, "AT_PAGESZ", (long)auxv[i].a_un.a_val);
break;
case AT_BASE:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_BASE/%p}\n",
prefix, "AT_BASE", auxv[i].a_un.a_ptr);
break;
case AT_FLAGS:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_FLAGS/%#lx}\n",
prefix, "AT_FLAGS", (u_long)auxv[i].a_un.a_val);
break;
case AT_ENTRY:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_ENTRY/%p}\n",
prefix, "AT_ENTRY", auxv[i].a_un.a_ptr);
break;
#ifdef AT_NOTELF
case AT_NOTELF:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_NOTELF/%ld}\n",
prefix, "AT_NOTELF", (long)auxv[i].a_un.a_val);
break;
#endif
#ifdef AT_UID
case AT_UID:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_UID/%ld}\n",
prefix, "AT_UID", (long)auxv[i].a_un.a_val);
break;
#endif
#ifdef AT_EUID
case AT_EUID:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_EUID/%ld}\n",
prefix, "AT_EUID", (long)auxv[i].a_un.a_val);
break;
#endif
#ifdef AT_GID
case AT_GID:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_GID/%ld}\n",
prefix, "AT_GID", (long)auxv[i].a_un.a_val);
break;
#endif
#ifdef AT_EGID
case AT_EGID:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_EGID/%ld}\n",
prefix, "AT_EGID", (long)auxv[i].a_un.a_val);
break;
#endif
case AT_EXECPATH:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_EXECPATH/%p}\n",
prefix, "AT_EXECPATH", auxv[i].a_un.a_ptr);
break;
case AT_CANARY:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_CANARY/%p}\n",
prefix, "AT_CANARY", auxv[i].a_un.a_ptr);
break;
case AT_CANARYLEN:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_CANARYLEN/%ld}\n",
prefix, "AT_CANARYLEN", (long)auxv[i].a_un.a_val);
break;
case AT_OSRELDATE:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_OSRELDATE/%ld}\n",
prefix, "AT_OSRELDATE", (long)auxv[i].a_un.a_val);
break;
case AT_NCPUS:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_NCPUS/%ld}\n",
prefix, "AT_NCPUS", (long)auxv[i].a_un.a_val);
break;
case AT_PAGESIZES:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_PAGESIZES/%p}\n",
prefix, "AT_PAGESIZES", auxv[i].a_un.a_ptr);
break;
case AT_PAGESIZESLEN:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}"
"{:AT_PAGESIZESLEN/%ld}\n", prefix,
"AT_PAGESIZESLEN", (long)auxv[i].a_un.a_val);
break;
case AT_STACKPROT:
if ((auxv[i].a_un.a_val & VM_PROT_EXECUTE) != 0)
xo_emit("{dw:/%s}{Lw:/%-16s/%s}"
"{:AT_STACKPROT/%s}\n", prefix,
"AT_STACKPROT", "EXECUTABLE");
else
xo_emit("{dw:/%s}{Lw:/%-16s/%s}"
"{:AT_STACKPROT/%s}\n", prefix,
"AT_STACKPROT", "NONEXECUTABLE");
break;
#ifdef AT_TIMEKEEP
case AT_TIMEKEEP:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_TIMEKEEP/%p}\n",
prefix, "AT_TIMEKEEP", auxv[i].a_un.a_ptr);
break;
#endif
#ifdef AT_EHDRFLAGS
case AT_EHDRFLAGS:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_EHDRFLAGS/%#lx}\n",
prefix, "AT_EHDRFLAGS", (u_long)auxv[i].a_un.a_val);
break;
#endif
#ifdef AT_HWCAP
case AT_HWCAP:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_HWCAP/%#lx}\n",
prefix, "AT_HWCAP", (u_long)auxv[i].a_un.a_val);
break;
#endif
#ifdef AT_HWCAP2
case AT_HWCAP2:
xo_emit("{dw:/%s}{Lw:/%-16s/%s}{:AT_HWCAP2/%#lx}\n",
prefix, "AT_HWCAP2", (u_long)auxv[i].a_un.a_val);
break;
#endif
default:
xo_emit("{dw:/%s}{Lw:/%16ld/%ld}{:UNKNOWN/%#lx}\n",
prefix, auxv[i].a_type, auxv[i].a_un.a_val);
break;
}
}
xo_emit("\n");
procstat_freeauxv(procstat, auxv);
}