First cut of DTrace for AArch64.
Reviewed by: andrew, emaste Sponsored by: ARM Limited Differential Revision: https://reviews.freebsd.org/D2738
This commit is contained in:
parent
8b47cda2f7
commit
b78ee15e9f
@ -1766,9 +1766,9 @@ cddl/lib/libctf__L: lib/libz__L
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.endif
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# cddl/lib/libdtrace requires lib/libproc and lib/librtld_db; it's only built
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# on select architectures though (see cddl/lib/Makefile)
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.if ${MACHINE_ARCH} == "amd64" || ${MACHINE_ARCH} == "i386" || \
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${MACHINE_CPUARCH} == "mips" || ${MACHINE_CPUARCH} == "powerpc" || \
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${MACHINE_CPUARCH} == "arm"
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.if ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_ARCH} == "amd64" || \
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${MACHINE_CPUARCH} == "arm" || ${MACHINE_ARCH} == "i386" || \
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${MACHINE_CPUARCH} == "mips" || ${MACHINE_CPUARCH} == "powerpc"
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_prebuild_libs+= lib/libproc lib/librtld_db
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.endif
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139
cddl/contrib/opensolaris/lib/libdtrace/aarch64/dt_isadep.c
Normal file
139
cddl/contrib/opensolaris/lib/libdtrace/aarch64/dt_isadep.c
Normal file
@ -0,0 +1,139 @@
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/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
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* Use is subject to license terms.
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* Copyright 2014 Howard Su
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* Copyright 2015 George V. Neville-Neil
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* Copyright 2015 Ruslan Bukin <br@bsdpad.com>
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*/
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#pragma ident "%Z%%M% %I% %E% SMI"
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#include <stdlib.h>
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#include <assert.h>
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#include <errno.h>
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#include <string.h>
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#include <libgen.h>
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#include <dt_impl.h>
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#include <dt_pid.h>
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#if !defined(sun)
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#include <libproc_compat.h>
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#endif
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/*ARGSUSED*/
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int
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dt_pid_create_entry_probe(struct ps_prochandle *P, dtrace_hdl_t *dtp,
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fasttrap_probe_spec_t *ftp, const GElf_Sym *symp)
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{
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ftp->ftps_type = DTFTP_ENTRY;
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ftp->ftps_pc = (uintptr_t)symp->st_value;
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ftp->ftps_size = (size_t)symp->st_size;
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ftp->ftps_noffs = 1;
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ftp->ftps_offs[0] = 0;
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if (ioctl(dtp->dt_ftfd, FASTTRAPIOC_MAKEPROBE, ftp) != 0) {
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dt_dprintf("fasttrap probe creation ioctl failed: %s\n",
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strerror(errno));
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return (dt_set_errno(dtp, errno));
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}
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return (1);
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}
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int
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dt_pid_create_return_probe(struct ps_prochandle *P, dtrace_hdl_t *dtp,
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fasttrap_probe_spec_t *ftp, const GElf_Sym *symp, uint64_t *stret)
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{
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dt_dprintf("%s: unimplemented\n", __func__);
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return (DT_PROC_ERR);
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}
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/*ARGSUSED*/
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int
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dt_pid_create_offset_probe(struct ps_prochandle *P, dtrace_hdl_t *dtp,
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fasttrap_probe_spec_t *ftp, const GElf_Sym *symp, ulong_t off)
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{
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if (!ALIGNED_POINTER(off, 4))
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return (DT_PROC_ALIGN);
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ftp->ftps_type = DTFTP_OFFSETS;
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ftp->ftps_pc = (uintptr_t)symp->st_value;
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ftp->ftps_size = (size_t)symp->st_size;
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ftp->ftps_noffs = 1;
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ftp->ftps_offs[0] = off;
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if (ioctl(dtp->dt_ftfd, FASTTRAPIOC_MAKEPROBE, ftp) != 0) {
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dt_dprintf("fasttrap probe creation ioctl failed: %s\n",
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strerror(errno));
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return (dt_set_errno(dtp, errno));
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}
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return (1);
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}
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/*ARGSUSED*/
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int
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dt_pid_create_glob_offset_probes(struct ps_prochandle *P, dtrace_hdl_t *dtp,
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fasttrap_probe_spec_t *ftp, const GElf_Sym *symp, const char *pattern)
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{
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ulong_t i;
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ftp->ftps_type = DTFTP_OFFSETS;
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ftp->ftps_pc = (uintptr_t)symp->st_value;
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ftp->ftps_size = (size_t)symp->st_size;
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ftp->ftps_noffs = 0;
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/*
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* If we're matching against everything, just iterate through each
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* instruction in the function, otherwise look for matching offset
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* names by constructing the string and comparing it against the
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* pattern.
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*/
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if (strcmp("*", pattern) == 0) {
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for (i = 0; i < symp->st_size; i += 4) {
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ftp->ftps_offs[ftp->ftps_noffs++] = i;
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}
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} else {
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char name[sizeof (i) * 2 + 1];
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for (i = 0; i < symp->st_size; i += 4) {
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(void) sprintf(name, "%lx", i);
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if (gmatch(name, pattern))
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ftp->ftps_offs[ftp->ftps_noffs++] = i;
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}
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}
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if (ioctl(dtp->dt_ftfd, FASTTRAPIOC_MAKEPROBE, ftp) != 0) {
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dt_dprintf("fasttrap probe creation ioctl failed: %s\n",
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strerror(errno));
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return (dt_set_errno(dtp, errno));
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}
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return (ftp->ftps_noffs);
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}
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@ -227,7 +227,10 @@ prepare_elf32(dtrace_hdl_t *dtp, const dof_hdr_t *dof, dof_elf32_t *dep)
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s = &dofs[dofrh->dofr_tgtsec];
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for (j = 0; j < nrel; j++) {
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#if defined(__arm__)
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#if defined(__aarch64__)
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/* XXX */
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printf("%s:%s(%d): DOODAD\n",__FUNCTION__,__FILE__,__LINE__);
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#elif defined(__arm__)
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/* XXX */
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printf("%s:%s(%d): DOODAD\n",__FUNCTION__,__FILE__,__LINE__);
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#elif defined(__i386) || defined(__amd64)
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@ -426,7 +429,9 @@ prepare_elf64(dtrace_hdl_t *dtp, const dof_hdr_t *dof, dof_elf64_t *dep)
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s = &dofs[dofrh->dofr_tgtsec];
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for (j = 0; j < nrel; j++) {
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#if defined(__arm__)
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#if defined(__aarch64__)
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/* XXX */
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#elif defined(__arm__)
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/* XXX */
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#elif defined(__mips__)
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/* XXX */
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@ -822,7 +827,16 @@ dt_symtab_lookup(Elf_Data *data_sym, int nsym, uintptr_t addr, uint_t shn,
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return (ret);
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}
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#if defined(__arm__)
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#if defined(__aarch64__)
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/* XXX */
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static int
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dt_modtext(dtrace_hdl_t *dtp, char *p, int isenabled, GElf_Rela *rela,
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uint32_t *off)
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{
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printf("%s:%s(%d): DOODAD\n",__FUNCTION__,__FILE__,__LINE__);
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return (0);
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}
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#elif defined(__arm__)
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/* XXX */
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static int
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dt_modtext(dtrace_hdl_t *dtp, char *p, int isenabled, GElf_Rela *rela,
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@ -26,9 +26,9 @@ _libzpool= libzpool
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.endif
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.endif
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.if ${MACHINE_ARCH} == "amd64" || ${MACHINE_ARCH} == "i386" || \
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${MACHINE_CPUARCH} == "mips" || ${MACHINE_CPUARCH} == "powerpc" || \
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${MACHINE_CPUARCH} == "arm"
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.if ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_ARCH} == "amd64" || \
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${MACHINE_CPUARCH} == "arm" || ${MACHINE_ARCH} == "i386" || \
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${MACHINE_CPUARCH} == "mips" || ${MACHINE_CPUARCH} == "powerpc"
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_drti= drti
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_libdtrace= libdtrace
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.endif
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@ -69,27 +69,31 @@ CFLAGS+= -I${.OBJDIR} -I${.CURDIR} \
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#CFLAGS+= -DYYDEBUG
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.if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64"
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.if ${MACHINE_CPUARCH} == "aarch64"
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CFLAGS+= -I${OPENSOLARIS_SYS_DISTDIR}/uts/aarch64
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.PATH: ${.CURDIR}/../../../cddl/contrib/opensolaris/lib/libdtrace/aarch64
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.PATH: ${.CURDIR}/../../../sys/cddl/dev/dtrace/aarch64
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.elif ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386"
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CFLAGS+= -I${.CURDIR}/../../../sys/cddl/dev/dtrace/x86
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CFLAGS+= -I${OPENSOLARIS_SYS_DISTDIR}/uts/intel -DDIS_MEM
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.PATH: ${.CURDIR}/../../../cddl/contrib/opensolaris/lib/libdtrace/i386
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.PATH: ${.CURDIR}/../../../sys/cddl/dev/dtrace/${MACHINE_ARCH}
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.PATH: ${.CURDIR}/../../../sys/cddl/dev/dtrace/x86
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.elif ${MACHINE_CPUARCH} == "sparc64"
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CFLAGS+= -I${OPENSOLARIS_SYS_DISTDIR}/uts/sparc
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.PATH: ${.CURDIR}/../../../cddl/contrib/opensolaris/lib/libdtrace/sparc
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.elif ${MACHINE_CPUARCH} == "mips"
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CFLAGS+= -I${OPENSOLARIS_SYS_DISTDIR}/uts/mips
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.PATH: ${.CURDIR}/../../../cddl/contrib/opensolaris/lib/libdtrace/mips
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.PATH: ${.CURDIR}/../../../sys/cddl/dev/dtrace/mips
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.elif ${MACHINE_CPUARCH} == "arm"
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CFLAGS+= -I${OPENSOLARIS_SYS_DISTDIR}/uts/arm
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.PATH: ${.CURDIR}/../../../cddl/contrib/opensolaris/lib/libdtrace/arm
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.PATH: ${.CURDIR}/../../../sys/cddl/dev/dtrace/arm
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.elif ${MACHINE_CPUARCH} == "mips"
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CFLAGS+= -I${OPENSOLARIS_SYS_DISTDIR}/uts/mips
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.PATH: ${.CURDIR}/../../../cddl/contrib/opensolaris/lib/libdtrace/mips
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.PATH: ${.CURDIR}/../../../sys/cddl/dev/dtrace/mips
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.elif ${MACHINE_CPUARCH} == "powerpc"
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CFLAGS+= -I${OPENSOLARIS_SYS_DISTDIR}/uts/powerpc
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.PATH: ${.CURDIR}/../../../cddl/contrib/opensolaris/lib/libdtrace/powerpc
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.PATH: ${.CURDIR}/../../../sys/cddl/dev/dtrace/powerpc
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.elif ${MACHINE_CPUARCH} == "sparc64"
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CFLAGS+= -I${OPENSOLARIS_SYS_DISTDIR}/uts/sparc
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.PATH: ${.CURDIR}/../../../cddl/contrib/opensolaris/lib/libdtrace/sparc
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.else
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# temporary hack
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CFLAGS+= -I${OPENSOLARIS_SYS_DISTDIR}/uts/intel
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@ -30,7 +30,7 @@ _plockstat= plockstat
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.endif
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.endif
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.if ${MACHINE_CPUARCH} == "arm"
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.if ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "arm"
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_dtrace= dtrace
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_dtruss= dtruss
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_lockstat= lockstat
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@ -215,8 +215,9 @@ _libldns= libldns
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# sense to build when clang is enabled at all. Furthermore, they can only be
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# built for certain architectures.
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.if ${MK_CLANG} != "no" && ${COMPILER_TYPE} == "clang" && \
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(${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" || \
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(${MACHINE_CPUARCH} == "arm" && ${MACHINE_ARCH} != "armeb"))
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(${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "amd64" || \
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(${MACHINE_CPUARCH} == "arm" && ${MACHINE_ARCH} != "armeb") || \
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(${MACHINE_CPUARCH} == "i386"))
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_libclang_rt= libclang_rt
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.endif
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@ -273,7 +274,7 @@ _libsmb= libsmb
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_libsmb= libsmb
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.endif
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.if ${MACHINE_CPUARCH} == "arm"
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.if ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "arm"
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_libsmb= libsmb
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_libproc= libproc
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_librtld_db= librtld_db
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@ -35,6 +35,7 @@ __FBSDID("$FreeBSD$");
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.macro save_registers el
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.if \el == 1
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mov x18, sp
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sub sp, sp, #128
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.endif
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stp x28, x29, [sp, #-16]!
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stp x26, x27, [sp, #-16]!
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@ -53,6 +53,10 @@ __FBSDID("$FreeBSD$");
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#include <machine/pcpu.h>
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#include <machine/vmparam.h>
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#ifdef KDTRACE_HOOKS
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#include <sys/dtrace_bsd.h>
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#endif
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#ifdef VFP
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#include <machine/vfp.h>
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#endif
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@ -72,6 +76,8 @@ void do_el1h_sync(struct trapframe *);
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void do_el0_sync(struct trapframe *);
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void do_el0_error(struct trapframe *);
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int (*dtrace_invop_jump_addr)(struct trapframe *);
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static __inline void
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call_trapsignal(struct thread *td, int sig, u_long code)
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{
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@ -230,6 +236,11 @@ do_el1h_sync(struct trapframe *frame)
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esr = READ_SPECIALREG(esr_el1);
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exception = ESR_ELx_EXCEPTION(esr);
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#ifdef KDTRACE_HOOKS
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if (dtrace_trap_func != NULL && (*dtrace_trap_func)(frame, exception))
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return;
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#endif
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/*
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* Sanity check we are in an exception er can handle. The IL bit
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* is used to indicate the instruction length, except in a few
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@ -252,6 +263,13 @@ do_el1h_sync(struct trapframe *frame)
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data_abort(frame, esr, 0);
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break;
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case EXCP_BRK:
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#ifdef KDTRACE_HOOKS
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if ((esr & ESR_ELx_ISS_MASK) == 0x40d && \
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dtrace_invop_jump_addr != 0) {
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dtrace_invop_jump_addr(frame);
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break;
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}
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#endif
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case EXCP_WATCHPT_EL1:
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case EXCP_SOFTSTP_EL1:
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#ifdef KDB
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|
@ -0,0 +1,29 @@
|
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/*
|
||||
* CDDL HEADER START
|
||||
*
|
||||
* The contents of this file are subject to the terms of the
|
||||
* Common Development and Distribution License (the "License").
|
||||
* You may not use this file except in compliance with the License.
|
||||
*
|
||||
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
||||
* or http://www.opensolaris.org/os/licensing.
|
||||
* See the License for the specific language governing permissions
|
||||
* and limitations under the License.
|
||||
*
|
||||
* When distributing Covered Code, include this CDDL HEADER in each
|
||||
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
||||
* If applicable, add the following below this CDDL HEADER, with the
|
||||
* fields enclosed by brackets "[]" replaced with your own identifying
|
||||
* information: Portions Copyright [yyyy] [name of copyright owner]
|
||||
*
|
||||
* CDDL HEADER END
|
||||
*/
|
||||
|
||||
/*
|
||||
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
|
||||
* Use is subject to license terms.
|
||||
*/
|
||||
|
||||
/*
|
||||
* XXX: Placeholder for AArch64 fasttrap code
|
||||
*/
|
46
sys/cddl/contrib/opensolaris/uts/aarch64/sys/fasttrap_isa.h
Normal file
46
sys/cddl/contrib/opensolaris/uts/aarch64/sys/fasttrap_isa.h
Normal file
@ -0,0 +1,46 @@
|
||||
/*
|
||||
* CDDL HEADER START
|
||||
*
|
||||
* The contents of this file are subject to the terms of the
|
||||
* Common Development and Distribution License, Version 1.0 only
|
||||
* (the "License"). You may not use this file except in compliance
|
||||
* with the License.
|
||||
*
|
||||
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
||||
* or http://www.opensolaris.org/os/licensing.
|
||||
* See the License for the specific language governing permissions
|
||||
* and limitations under the License.
|
||||
*
|
||||
* When distributing Covered Code, include this CDDL HEADER in each
|
||||
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
||||
* If applicable, add the following below this CDDL HEADER, with the
|
||||
* fields enclosed by brackets "[]" replaced with your own identifying
|
||||
* information: Portions Copyright [yyyy] [name of copyright owner]
|
||||
*
|
||||
* CDDL HEADER END
|
||||
*/
|
||||
/*
|
||||
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
|
||||
* Use is subject to license terms.
|
||||
*/
|
||||
|
||||
#ifndef _FASTTRAP_ISA_H
|
||||
#define _FASTTRAP_ISA_H
|
||||
|
||||
#pragma ident "%Z%%M% %I% %E% SMI"
|
||||
|
||||
#include <sys/types.h>
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
typedef uint32_t fasttrap_instr_t;
|
||||
|
||||
/* XXX: Place for AArch64 fasttrap headers */
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* _FASTTRAP_ISA_H */
|
@ -11884,7 +11884,8 @@ dtrace_buffer_alloc(dtrace_buffer_t *bufs, size_t size, int flags,
|
||||
int i;
|
||||
|
||||
*factor = 1;
|
||||
#if defined(__amd64__) || defined(__arm__) || defined(__mips__) || defined(__powerpc__)
|
||||
#if defined(__aarch64__) || defined(__amd64__) || defined(__arm__) || \
|
||||
defined(__mips__) || defined(__powerpc__)
|
||||
/*
|
||||
* FreeBSD isn't good at limiting the amount of memory we
|
||||
* ask to malloc, so let's place a limit here before trying
|
||||
|
@ -2445,6 +2445,34 @@ extern void dtrace_helpers_destroy(proc_t *);
|
||||
#define DTRACE_INVOP_POPM 2
|
||||
#define DTRACE_INVOP_B 3
|
||||
|
||||
#elif defined(__aarch64__)
|
||||
|
||||
#define INSN_SIZE 4
|
||||
|
||||
#define B_MASK 0xff000000
|
||||
#define B_DATA_MASK 0x00ffffff
|
||||
#define B_INSTR 0x14000000
|
||||
|
||||
#define RET_INSTR 0xd65f03c0
|
||||
|
||||
#define LDP_STP_MASK 0xffc00000
|
||||
#define STP_32 0x29800000
|
||||
#define STP_64 0xa9800000
|
||||
#define LDP_32 0x28c00000
|
||||
#define LDP_64 0xa8c00000
|
||||
#define LDP_STP_PREIND (1 << 24)
|
||||
#define LDP_STP_DIR (1 << 22) /* Load instruction */
|
||||
#define ARG1_SHIFT 0
|
||||
#define ARG1_MASK 0x1f
|
||||
#define ARG2_SHIFT 10
|
||||
#define ARG2_MASK 0x1f
|
||||
#define OFFSET_SHIFT 15
|
||||
#define OFFSET_SIZE 7
|
||||
#define OFFSET_MASK ((1 << OFFSET_SIZE) - 1)
|
||||
|
||||
#define DTRACE_INVOP_PUSHM 1
|
||||
#define DTRACE_INVOP_RET 2
|
||||
#define DTRACE_INVOP_B 3
|
||||
|
||||
#endif
|
||||
|
||||
|
173
sys/cddl/dev/dtrace/aarch64/dtrace_asm.S
Normal file
173
sys/cddl/dev/dtrace/aarch64/dtrace_asm.S
Normal file
@ -0,0 +1,173 @@
|
||||
/*
|
||||
* CDDL HEADER START
|
||||
*
|
||||
* The contents of this file are subject to the terms of the
|
||||
* Common Development and Distribution License, Version 1.0 only
|
||||
* (the "License"). You may not use this file except in compliance
|
||||
* with the License.
|
||||
*
|
||||
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
||||
* or http://www.opensolaris.org/os/licensing.
|
||||
* See the License for the specific language governing permissions
|
||||
* and limitations under the License.
|
||||
*
|
||||
* When distributing Covered Code, include this CDDL HEADER in each
|
||||
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
||||
* If applicable, add the following below this CDDL HEADER, with the
|
||||
* fields enclosed by brackets "[]" replaced with your own identifying
|
||||
* information: Portions Copyright [yyyy] [name of copyright owner]
|
||||
*
|
||||
* CDDL HEADER END
|
||||
*
|
||||
* $FreeBSD$
|
||||
*/
|
||||
/*
|
||||
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
|
||||
* Use is subject to license terms.
|
||||
*/
|
||||
|
||||
#define _ASM
|
||||
#define _LOCORE
|
||||
|
||||
#include <sys/cpuvar_defs.h>
|
||||
#include <sys/dtrace.h>
|
||||
|
||||
#include <machine/armreg.h>
|
||||
#include <machine/asm.h>
|
||||
|
||||
#include "assym.s"
|
||||
|
||||
/*
|
||||
void dtrace_membar_producer(void)
|
||||
*/
|
||||
ENTRY(dtrace_membar_producer)
|
||||
RET
|
||||
END(dtrace_membar_producer)
|
||||
|
||||
/*
|
||||
void dtrace_membar_consumer(void)
|
||||
*/
|
||||
ENTRY(dtrace_membar_consumer)
|
||||
RET
|
||||
END(dtrace_membar_consumer)
|
||||
|
||||
/*
|
||||
dtrace_icookie_t dtrace_interrupt_disable(void)
|
||||
*/
|
||||
ENTRY(dtrace_interrupt_disable)
|
||||
msr daifset, #2
|
||||
RET
|
||||
END(dtrace_interrupt_disable)
|
||||
|
||||
/*
|
||||
void dtrace_interrupt_enable(dtrace_icookie_t cookie)
|
||||
*/
|
||||
ENTRY(dtrace_interrupt_enable)
|
||||
msr daifclr, #2
|
||||
RET
|
||||
END(dtrace_interrupt_enable)
|
||||
/*
|
||||
uint8_t
|
||||
dtrace_fuword8_nocheck(void *addr)
|
||||
*/
|
||||
ENTRY(dtrace_fuword8_nocheck)
|
||||
ldrb w0, [x0]
|
||||
RET
|
||||
END(dtrace_fuword8_nocheck)
|
||||
|
||||
/*
|
||||
uint16_t
|
||||
dtrace_fuword16_nocheck(void *addr)
|
||||
*/
|
||||
ENTRY(dtrace_fuword16_nocheck)
|
||||
ldrh w0, [x0]
|
||||
RET
|
||||
END(dtrace_fuword16_nocheck)
|
||||
|
||||
/*
|
||||
uint32_t
|
||||
dtrace_fuword32_nocheck(void *addr)
|
||||
*/
|
||||
ENTRY(dtrace_fuword32_nocheck)
|
||||
ldr w0, [x0]
|
||||
RET
|
||||
END(dtrace_fuword32_nocheck)
|
||||
|
||||
/*
|
||||
uint64_t
|
||||
dtrace_fuword64_nocheck(void *addr)
|
||||
*/
|
||||
ENTRY(dtrace_fuword64_nocheck)
|
||||
ldr x0, [x0]
|
||||
RET
|
||||
END(dtrace_fuword64_nocheck)
|
||||
|
||||
/*
|
||||
void
|
||||
dtrace_copy(uintptr_t uaddr, uintptr_t kaddr, size_t size)
|
||||
*/
|
||||
ENTRY(dtrace_copy)
|
||||
cbz x2, 2f /* If len == 0 then skip loop */
|
||||
1:
|
||||
ldrb w4, [x0], #1 /* Load from uaddr */
|
||||
strb w4, [x1], #1 /* Store in kaddr */
|
||||
sub x2, x2, #1 /* len-- */
|
||||
cbnz x2, 1b
|
||||
2:
|
||||
RET
|
||||
END(dtrace_copy)
|
||||
|
||||
/*
|
||||
void
|
||||
dtrace_copystr(uintptr_t uaddr, uintptr_t kaddr, size_t size,
|
||||
volatile uint16_t *flags)
|
||||
XXX: Check for flags?
|
||||
*/
|
||||
ENTRY(dtrace_copystr)
|
||||
cbz x2, 2f /* If len == 0 then skip loop */
|
||||
|
||||
1: ldrb w4, [x0], #1 /* Load from uaddr */
|
||||
strb w4, [x1], #1 /* Store in kaddr */
|
||||
cbz w4, 2f /* If == 0 then break */
|
||||
sub x2, x2, #1 /* len-- */
|
||||
cbnz x2, 1b
|
||||
2:
|
||||
RET
|
||||
END(dtrace_copystr)
|
||||
|
||||
/*
|
||||
uintptr_t
|
||||
dtrace_caller(int aframes)
|
||||
*/
|
||||
ENTRY(dtrace_caller)
|
||||
mov x0, #-1
|
||||
RET
|
||||
END(dtrace_caller)
|
||||
|
||||
/*
|
||||
uint32_t
|
||||
dtrace_cas32(uint32_t *target, uint32_t cmp, uint32_t new)
|
||||
*/
|
||||
ENTRY(dtrace_cas32)
|
||||
1: ldxr w3, [x0] /* Load target */
|
||||
cmp w3, w1 /* Check if *target == cmp */
|
||||
bne 2f /* No, return */
|
||||
stxr w12, w2, [x0] /* Store new to target */
|
||||
cbnz w12, 1b /* Try again if store not succeed */
|
||||
2: mov w0, w3 /* Return the value loaded from target */
|
||||
RET
|
||||
END(dtrace_cas32)
|
||||
|
||||
/*
|
||||
void *
|
||||
dtrace_casptr(volatile void *target, volatile void *cmp, volatile void *new)
|
||||
*/
|
||||
ENTRY(dtrace_casptr)
|
||||
1: ldxr x3, [x0] /* Load target */
|
||||
cmp x3, x1 /* Check if *target == cmp */
|
||||
bne 2f /* No, return */
|
||||
stxr w12, x2, [x0] /* Store new to target */
|
||||
cbnz w12, 1b /* Try again if store not succeed */
|
||||
2: mov x0, x3 /* Return the value loaded from target */
|
||||
RET
|
||||
END(dtrace_casptr)
|
287
sys/cddl/dev/dtrace/aarch64/dtrace_isa.c
Normal file
287
sys/cddl/dev/dtrace/aarch64/dtrace_isa.c
Normal file
@ -0,0 +1,287 @@
|
||||
/*
|
||||
* CDDL HEADER START
|
||||
*
|
||||
* The contents of this file are subject to the terms of the
|
||||
* Common Development and Distribution License, Version 1.0 only
|
||||
* (the "License"). You may not use this file except in compliance
|
||||
* with the License.
|
||||
*
|
||||
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
||||
* or http://www.opensolaris.org/os/licensing.
|
||||
* See the License for the specific language governing permissions
|
||||
* and limitations under the License.
|
||||
*
|
||||
* When distributing Covered Code, include this CDDL HEADER in each
|
||||
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
||||
* If applicable, add the following below this CDDL HEADER, with the
|
||||
* fields enclosed by brackets "[]" replaced with your own identifying
|
||||
* information: Portions Copyright [yyyy] [name of copyright owner]
|
||||
*
|
||||
* CDDL HEADER END
|
||||
*
|
||||
* $FreeBSD$
|
||||
*/
|
||||
/*
|
||||
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
|
||||
* Use is subject to license terms.
|
||||
*/
|
||||
#include <sys/cdefs.h>
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/stack.h>
|
||||
#include <sys/pcpu.h>
|
||||
|
||||
#include <machine/frame.h>
|
||||
#include <machine/md_var.h>
|
||||
#include <machine/reg.h>
|
||||
|
||||
#include <vm/vm.h>
|
||||
#include <vm/vm_param.h>
|
||||
#include <vm/pmap.h>
|
||||
|
||||
#include <machine/atomic.h>
|
||||
#include <machine/db_machdep.h>
|
||||
#include <machine/md_var.h>
|
||||
#include <machine/vmparam.h>
|
||||
#include <machine/stack.h>
|
||||
#include <ddb/db_sym.h>
|
||||
#include <ddb/ddb.h>
|
||||
#include <sys/kdb.h>
|
||||
|
||||
#include "regset.h"
|
||||
|
||||
/*
|
||||
* Wee need some reasonable default to prevent backtrace code
|
||||
* from wandering too far
|
||||
*/
|
||||
#define MAX_FUNCTION_SIZE 0x10000
|
||||
#define MAX_PROLOGUE_SIZE 0x100
|
||||
|
||||
uint8_t dtrace_fuword8_nocheck(void *);
|
||||
uint16_t dtrace_fuword16_nocheck(void *);
|
||||
uint32_t dtrace_fuword32_nocheck(void *);
|
||||
uint64_t dtrace_fuword64_nocheck(void *);
|
||||
|
||||
void
|
||||
dtrace_getpcstack(pc_t *pcstack, int pcstack_limit, int aframes,
|
||||
uint32_t *intrpc)
|
||||
{
|
||||
struct unwind_state state;
|
||||
int scp_offset;
|
||||
register_t sp;
|
||||
int depth;
|
||||
|
||||
depth = 0;
|
||||
|
||||
if (intrpc != 0) {
|
||||
pcstack[depth++] = (pc_t) intrpc;
|
||||
}
|
||||
|
||||
aframes++;
|
||||
|
||||
__asm __volatile("mov %0, sp" : "=&r" (sp));
|
||||
|
||||
state.fp = (uint64_t)__builtin_frame_address(0);
|
||||
state.sp = sp;
|
||||
state.pc = (uint64_t)dtrace_getpcstack;
|
||||
|
||||
while (depth < pcstack_limit) {
|
||||
if (unwind_frame(&state))
|
||||
break;
|
||||
|
||||
if (!INKERNEL(state.pc) || !INKERNEL(state.fp))
|
||||
break;
|
||||
|
||||
/*
|
||||
* NB: Unlike some other architectures, we don't need to
|
||||
* explicitly insert cpu_dtrace_caller as it appears in the
|
||||
* normal kernel stack trace rather than a special trap frame.
|
||||
*/
|
||||
if (aframes > 0) {
|
||||
aframes--;
|
||||
} else {
|
||||
pcstack[depth++] = state.pc;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
for (; depth < pcstack_limit; depth++) {
|
||||
pcstack[depth] = 0;
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
dtrace_getupcstack(uint64_t *pcstack, int pcstack_limit)
|
||||
{
|
||||
|
||||
printf("IMPLEMENT ME: %s\n", __func__);
|
||||
}
|
||||
|
||||
int
|
||||
dtrace_getustackdepth(void)
|
||||
{
|
||||
|
||||
printf("IMPLEMENT ME: %s\n", __func__);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
void
|
||||
dtrace_getufpstack(uint64_t *pcstack, uint64_t *fpstack, int pcstack_limit)
|
||||
{
|
||||
|
||||
printf("IMPLEMENT ME: %s\n", __func__);
|
||||
}
|
||||
|
||||
/*ARGSUSED*/
|
||||
uint64_t
|
||||
dtrace_getarg(int arg, int aframes)
|
||||
{
|
||||
|
||||
printf("IMPLEMENT ME: %s\n", __func__);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
int
|
||||
dtrace_getstackdepth(int aframes)
|
||||
{
|
||||
struct unwind_state state;
|
||||
int scp_offset;
|
||||
register_t sp;
|
||||
int depth;
|
||||
int done;
|
||||
|
||||
depth = 1;
|
||||
done = 0;
|
||||
|
||||
__asm __volatile("mov %0, sp" : "=&r" (sp));
|
||||
|
||||
state.fp = (uint64_t)__builtin_frame_address(0);
|
||||
state.sp = sp;
|
||||
state.pc = (uint64_t)dtrace_getstackdepth;
|
||||
|
||||
do {
|
||||
done = unwind_frame(&state);
|
||||
if (!INKERNEL(state.pc) || !INKERNEL(state.fp))
|
||||
break;
|
||||
depth++;
|
||||
} while (!done);
|
||||
|
||||
if (depth < aframes)
|
||||
return (0);
|
||||
else
|
||||
return (depth - aframes);
|
||||
}
|
||||
|
||||
ulong_t
|
||||
dtrace_getreg(struct trapframe *rp, uint_t reg)
|
||||
{
|
||||
|
||||
printf("IMPLEMENT ME: %s\n", __func__);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
static int
|
||||
dtrace_copycheck(uintptr_t uaddr, uintptr_t kaddr, size_t size)
|
||||
{
|
||||
|
||||
if (uaddr + size > VM_MAXUSER_ADDRESS || uaddr + size < uaddr) {
|
||||
DTRACE_CPUFLAG_SET(CPU_DTRACE_BADADDR);
|
||||
cpu_core[curcpu].cpuc_dtrace_illval = uaddr;
|
||||
return (0);
|
||||
}
|
||||
|
||||
return (1);
|
||||
}
|
||||
|
||||
void
|
||||
dtrace_copyin(uintptr_t uaddr, uintptr_t kaddr, size_t size,
|
||||
volatile uint16_t *flags)
|
||||
{
|
||||
|
||||
if (dtrace_copycheck(uaddr, kaddr, size))
|
||||
dtrace_copy(uaddr, kaddr, size);
|
||||
}
|
||||
|
||||
void
|
||||
dtrace_copyout(uintptr_t kaddr, uintptr_t uaddr, size_t size,
|
||||
volatile uint16_t *flags)
|
||||
{
|
||||
|
||||
if (dtrace_copycheck(uaddr, kaddr, size))
|
||||
dtrace_copy(kaddr, uaddr, size);
|
||||
}
|
||||
|
||||
void
|
||||
dtrace_copyinstr(uintptr_t uaddr, uintptr_t kaddr, size_t size,
|
||||
volatile uint16_t *flags)
|
||||
{
|
||||
|
||||
if (dtrace_copycheck(uaddr, kaddr, size))
|
||||
dtrace_copystr(uaddr, kaddr, size, flags);
|
||||
}
|
||||
|
||||
void
|
||||
dtrace_copyoutstr(uintptr_t kaddr, uintptr_t uaddr, size_t size,
|
||||
volatile uint16_t *flags)
|
||||
{
|
||||
|
||||
if (dtrace_copycheck(uaddr, kaddr, size))
|
||||
dtrace_copystr(kaddr, uaddr, size, flags);
|
||||
}
|
||||
|
||||
uint8_t
|
||||
dtrace_fuword8(void *uaddr)
|
||||
{
|
||||
|
||||
if ((uintptr_t)uaddr > VM_MAXUSER_ADDRESS) {
|
||||
DTRACE_CPUFLAG_SET(CPU_DTRACE_BADADDR);
|
||||
cpu_core[curcpu].cpuc_dtrace_illval = (uintptr_t)uaddr;
|
||||
return (0);
|
||||
}
|
||||
|
||||
return (dtrace_fuword8_nocheck(uaddr));
|
||||
}
|
||||
|
||||
uint16_t
|
||||
dtrace_fuword16(void *uaddr)
|
||||
{
|
||||
|
||||
if ((uintptr_t)uaddr > VM_MAXUSER_ADDRESS) {
|
||||
DTRACE_CPUFLAG_SET(CPU_DTRACE_BADADDR);
|
||||
cpu_core[curcpu].cpuc_dtrace_illval = (uintptr_t)uaddr;
|
||||
return (0);
|
||||
}
|
||||
|
||||
return (dtrace_fuword16_nocheck(uaddr));
|
||||
}
|
||||
|
||||
uint32_t
|
||||
dtrace_fuword32(void *uaddr)
|
||||
{
|
||||
|
||||
if ((uintptr_t)uaddr > VM_MAXUSER_ADDRESS) {
|
||||
DTRACE_CPUFLAG_SET(CPU_DTRACE_BADADDR);
|
||||
cpu_core[curcpu].cpuc_dtrace_illval = (uintptr_t)uaddr;
|
||||
return (0);
|
||||
}
|
||||
|
||||
return (dtrace_fuword32_nocheck(uaddr));
|
||||
}
|
||||
|
||||
uint64_t
|
||||
dtrace_fuword64(void *uaddr)
|
||||
{
|
||||
|
||||
if ((uintptr_t)uaddr > VM_MAXUSER_ADDRESS) {
|
||||
DTRACE_CPUFLAG_SET(CPU_DTRACE_BADADDR);
|
||||
cpu_core[curcpu].cpuc_dtrace_illval = (uintptr_t)uaddr;
|
||||
return (0);
|
||||
}
|
||||
|
||||
return (dtrace_fuword64_nocheck(uaddr));
|
||||
}
|
311
sys/cddl/dev/dtrace/aarch64/dtrace_subr.c
Normal file
311
sys/cddl/dev/dtrace/aarch64/dtrace_subr.c
Normal file
@ -0,0 +1,311 @@
|
||||
/*
|
||||
* CDDL HEADER START
|
||||
*
|
||||
* The contents of this file are subject to the terms of the
|
||||
* Common Development and Distribution License, Version 1.0 only
|
||||
* (the "License"). You may not use this file except in compliance
|
||||
* with the License.
|
||||
*
|
||||
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
||||
* or http://www.opensolaris.org/os/licensing.
|
||||
* See the License for the specific language governing permissions
|
||||
* and limitations under the License.
|
||||
*
|
||||
* When distributing Covered Code, include this CDDL HEADER in each
|
||||
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
||||
* If applicable, add the following below this CDDL HEADER, with the
|
||||
* fields enclosed by brackets "[]" replaced with your own identifying
|
||||
* information: Portions Copyright [yyyy] [name of copyright owner]
|
||||
*
|
||||
* CDDL HEADER END
|
||||
*
|
||||
* $FreeBSD$
|
||||
*
|
||||
*/
|
||||
/*
|
||||
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
|
||||
* Use is subject to license terms.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__FBSDID("$FreeBSD$");
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/malloc.h>
|
||||
#include <sys/kmem.h>
|
||||
#include <sys/smp.h>
|
||||
#include <sys/dtrace_impl.h>
|
||||
#include <sys/dtrace_bsd.h>
|
||||
#include <machine/armreg.h>
|
||||
#include <machine/clock.h>
|
||||
#include <machine/frame.h>
|
||||
#include <machine/trap.h>
|
||||
#include <vm/pmap.h>
|
||||
|
||||
extern uintptr_t dtrace_in_probe_addr;
|
||||
extern int dtrace_in_probe;
|
||||
extern dtrace_id_t dtrace_probeid_error;
|
||||
extern int (*dtrace_invop_jump_addr)(struct trapframe *);
|
||||
extern void dtrace_getnanotime(struct timespec *tsp);
|
||||
|
||||
int dtrace_invop(uintptr_t, uintptr_t *, uintptr_t);
|
||||
void dtrace_invop_init(void);
|
||||
void dtrace_invop_uninit(void);
|
||||
|
||||
typedef struct dtrace_invop_hdlr {
|
||||
int (*dtih_func)(uintptr_t, uintptr_t *, uintptr_t);
|
||||
struct dtrace_invop_hdlr *dtih_next;
|
||||
} dtrace_invop_hdlr_t;
|
||||
|
||||
dtrace_invop_hdlr_t *dtrace_invop_hdlr;
|
||||
|
||||
int
|
||||
dtrace_invop(uintptr_t addr, uintptr_t *stack, uintptr_t eax)
|
||||
{
|
||||
dtrace_invop_hdlr_t *hdlr;
|
||||
int rval;
|
||||
|
||||
for (hdlr = dtrace_invop_hdlr; hdlr != NULL; hdlr = hdlr->dtih_next)
|
||||
if ((rval = hdlr->dtih_func(addr, stack, eax)) != 0)
|
||||
return (rval);
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
dtrace_invop_add(int (*func)(uintptr_t, uintptr_t *, uintptr_t))
|
||||
{
|
||||
dtrace_invop_hdlr_t *hdlr;
|
||||
|
||||
hdlr = kmem_alloc(sizeof (dtrace_invop_hdlr_t), KM_SLEEP);
|
||||
hdlr->dtih_func = func;
|
||||
hdlr->dtih_next = dtrace_invop_hdlr;
|
||||
dtrace_invop_hdlr = hdlr;
|
||||
}
|
||||
|
||||
void
|
||||
dtrace_invop_remove(int (*func)(uintptr_t, uintptr_t *, uintptr_t))
|
||||
{
|
||||
dtrace_invop_hdlr_t *hdlr, *prev;
|
||||
|
||||
hdlr = dtrace_invop_hdlr;
|
||||
prev = NULL;
|
||||
|
||||
for (;;) {
|
||||
if (hdlr == NULL)
|
||||
panic("attempt to remove non-existent invop handler");
|
||||
|
||||
if (hdlr->dtih_func == func)
|
||||
break;
|
||||
|
||||
prev = hdlr;
|
||||
hdlr = hdlr->dtih_next;
|
||||
}
|
||||
|
||||
if (prev == NULL) {
|
||||
ASSERT(dtrace_invop_hdlr == hdlr);
|
||||
dtrace_invop_hdlr = hdlr->dtih_next;
|
||||
} else {
|
||||
ASSERT(dtrace_invop_hdlr != hdlr);
|
||||
prev->dtih_next = hdlr->dtih_next;
|
||||
}
|
||||
|
||||
kmem_free(hdlr, 0);
|
||||
}
|
||||
|
||||
/*ARGSUSED*/
|
||||
void
|
||||
dtrace_toxic_ranges(void (*func)(uintptr_t base, uintptr_t limit))
|
||||
{
|
||||
|
||||
printf("IMPLEMENT ME: dtrace_toxic_ranges\n");
|
||||
}
|
||||
|
||||
void
|
||||
dtrace_xcall(processorid_t cpu, dtrace_xcall_t func, void *arg)
|
||||
{
|
||||
cpuset_t cpus;
|
||||
|
||||
if (cpu == DTRACE_CPUALL)
|
||||
cpus = all_cpus;
|
||||
else
|
||||
CPU_SETOF(cpu, &cpus);
|
||||
|
||||
smp_rendezvous_cpus(cpus, smp_no_rendevous_barrier, func,
|
||||
smp_no_rendevous_barrier, arg);
|
||||
}
|
||||
|
||||
static void
|
||||
dtrace_sync_func(void)
|
||||
{
|
||||
|
||||
}
|
||||
|
||||
void
|
||||
dtrace_sync(void)
|
||||
{
|
||||
|
||||
dtrace_xcall(DTRACE_CPUALL, (dtrace_xcall_t)dtrace_sync_func, NULL);
|
||||
}
|
||||
|
||||
/*
|
||||
* DTrace needs a high resolution time function which can
|
||||
* be called from a probe context and guaranteed not to have
|
||||
* instrumented with probes itself.
|
||||
*
|
||||
* Returns nanoseconds since boot.
|
||||
*/
|
||||
uint64_t
|
||||
dtrace_gethrtime()
|
||||
{
|
||||
struct timespec curtime;
|
||||
|
||||
nanouptime(&curtime);
|
||||
|
||||
return (curtime.tv_sec * 1000000000UL + curtime.tv_nsec);
|
||||
|
||||
}
|
||||
|
||||
uint64_t
|
||||
dtrace_gethrestime(void)
|
||||
{
|
||||
struct timespec current_time;
|
||||
|
||||
dtrace_getnanotime(¤t_time);
|
||||
|
||||
return (current_time.tv_sec * 1000000000UL + current_time.tv_nsec);
|
||||
}
|
||||
|
||||
/* Function to handle DTrace traps during probes. See arm64/arm64/trap.c */
|
||||
int
|
||||
dtrace_trap(struct trapframe *frame, u_int type)
|
||||
{
|
||||
/*
|
||||
* A trap can occur while DTrace executes a probe. Before
|
||||
* executing the probe, DTrace blocks re-scheduling and sets
|
||||
* a flag in it's per-cpu flags to indicate that it doesn't
|
||||
* want to fault. On returning from the probe, the no-fault
|
||||
* flag is cleared and finally re-scheduling is enabled.
|
||||
*
|
||||
* Check if DTrace has enabled 'no-fault' mode:
|
||||
*
|
||||
*/
|
||||
|
||||
if ((cpu_core[curcpu].cpuc_dtrace_flags & CPU_DTRACE_NOFAULT) != 0) {
|
||||
/*
|
||||
* There are only a couple of trap types that are expected.
|
||||
* All the rest will be handled in the usual way.
|
||||
*/
|
||||
switch (type) {
|
||||
case EXCP_DATA_ABORT:
|
||||
/* Flag a bad address. */
|
||||
cpu_core[curcpu].cpuc_dtrace_flags |= CPU_DTRACE_BADADDR;
|
||||
cpu_core[curcpu].cpuc_dtrace_illval = 0;
|
||||
|
||||
/*
|
||||
* Offset the instruction pointer to the instruction
|
||||
* following the one causing the fault.
|
||||
*/
|
||||
frame->tf_elr += 4;
|
||||
return (1);
|
||||
default:
|
||||
/* Handle all other traps in the usual way. */
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/* Handle the trap in the usual way. */
|
||||
return (0);
|
||||
}
|
||||
|
||||
void
|
||||
dtrace_probe_error(dtrace_state_t *state, dtrace_epid_t epid, int which,
|
||||
int fault, int fltoffs, uintptr_t illval)
|
||||
{
|
||||
|
||||
dtrace_probe(dtrace_probeid_error, (uint64_t)(uintptr_t)state,
|
||||
(uintptr_t)epid,
|
||||
(uintptr_t)which, (uintptr_t)fault, (uintptr_t)fltoffs);
|
||||
}
|
||||
|
||||
static int
|
||||
dtrace_invop_start(struct trapframe *frame)
|
||||
{
|
||||
int data, invop, reg, update_sp;
|
||||
register_t arg1, arg2;
|
||||
register_t *sp;
|
||||
int offs;
|
||||
int tmp;
|
||||
int i;
|
||||
|
||||
invop = dtrace_invop(frame->tf_elr, (uintptr_t *)frame, frame->tf_elr);
|
||||
|
||||
tmp = (invop & LDP_STP_MASK);
|
||||
if (tmp == STP_64 || tmp == LDP_64) {
|
||||
sp = (register_t *)frame->tf_sp;
|
||||
data = invop;
|
||||
arg1 = (data >> ARG1_SHIFT) & ARG1_MASK;
|
||||
arg2 = (data >> ARG2_SHIFT) & ARG2_MASK;
|
||||
|
||||
offs = (data >> OFFSET_SHIFT) & OFFSET_MASK;
|
||||
|
||||
switch (tmp) {
|
||||
case STP_64:
|
||||
if (offs >> (OFFSET_SIZE - 1))
|
||||
sp -= (~offs & OFFSET_MASK) + 1;
|
||||
else
|
||||
sp += (offs);
|
||||
*(sp + 0) = frame->tf_x[arg1];
|
||||
*(sp + 1) = frame->tf_x[arg2];
|
||||
break;
|
||||
case LDP_64:
|
||||
frame->tf_x[arg1] = *(sp + 0);
|
||||
frame->tf_x[arg2] = *(sp + 1);
|
||||
if (offs >> (OFFSET_SIZE - 1))
|
||||
sp -= (~offs & OFFSET_MASK) + 1;
|
||||
else
|
||||
sp += (offs);
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
/* Update the stack pointer and program counter to continue */
|
||||
frame->tf_sp = (register_t)sp;
|
||||
frame->tf_elr += INSN_SIZE;
|
||||
return (0);
|
||||
}
|
||||
|
||||
if ((invop & B_MASK) == B_INSTR) {
|
||||
data = (invop & B_DATA_MASK);
|
||||
/* The data is the number of 4-byte words to change the pc */
|
||||
data *= 4;
|
||||
frame->tf_elr += data;
|
||||
return (0);
|
||||
}
|
||||
|
||||
if (invop == RET_INSTR) {
|
||||
frame->tf_elr = frame->tf_lr;
|
||||
return (0);
|
||||
}
|
||||
|
||||
return (-1);
|
||||
}
|
||||
|
||||
void
|
||||
dtrace_invop_init(void)
|
||||
{
|
||||
|
||||
dtrace_invop_jump_addr = dtrace_invop_start;
|
||||
}
|
||||
|
||||
void
|
||||
dtrace_invop_uninit(void)
|
||||
{
|
||||
|
||||
dtrace_invop_jump_addr = 0;
|
||||
}
|
51
sys/cddl/dev/dtrace/aarch64/regset.h
Normal file
51
sys/cddl/dev/dtrace/aarch64/regset.h
Normal file
@ -0,0 +1,51 @@
|
||||
/*
|
||||
* CDDL HEADER START
|
||||
*
|
||||
* The contents of this file are subject to the terms of the
|
||||
* Common Development and Distribution License, Version 1.0 only
|
||||
* (the "License"). You may not use this file except in compliance
|
||||
* with the License.
|
||||
*
|
||||
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
||||
* or http://www.opensolaris.org/os/licensing.
|
||||
* See the License for the specific language governing permissions
|
||||
* and limitations under the License.
|
||||
*
|
||||
* When distributing Covered Code, include this CDDL HEADER in each
|
||||
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
||||
* If applicable, add the following below this CDDL HEADER, with the
|
||||
* fields enclosed by brackets "[]" replaced with your own identifying
|
||||
* information: Portions Copyright [yyyy] [name of copyright owner]
|
||||
*
|
||||
* CDDL HEADER END
|
||||
*
|
||||
* $FreeBSD$
|
||||
*/
|
||||
/*
|
||||
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
|
||||
* Use is subject to license terms.
|
||||
*/
|
||||
|
||||
/* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */
|
||||
|
||||
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
|
||||
/* All Rights Reserved */
|
||||
|
||||
#ifndef _REGSET_H
|
||||
#define _REGSET_H
|
||||
|
||||
/*
|
||||
* #pragma ident "@(#)regset.h 1.11 05/06/08 SMI"
|
||||
*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/* Place here */
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* _REGSET_H */
|
180
sys/cddl/dev/fbt/aarch64/fbt_isa.c
Normal file
180
sys/cddl/dev/fbt/aarch64/fbt_isa.c
Normal file
@ -0,0 +1,180 @@
|
||||
/*
|
||||
* CDDL HEADER START
|
||||
*
|
||||
* The contents of this file are subject to the terms of the
|
||||
* Common Development and Distribution License (the "License").
|
||||
* You may not use this file except in compliance with the License.
|
||||
*
|
||||
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
||||
* or http://www.opensolaris.org/os/licensing.
|
||||
* See the License for the specific language governing permissions
|
||||
* and limitations under the License.
|
||||
*
|
||||
* When distributing Covered Code, include this CDDL HEADER in each
|
||||
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
||||
* If applicable, add the following below this CDDL HEADER, with the
|
||||
* fields enclosed by brackets "[]" replaced with your own identifying
|
||||
* information: Portions Copyright [yyyy] [name of copyright owner]
|
||||
*
|
||||
* CDDL HEADER END
|
||||
*
|
||||
* Portions Copyright 2006-2008 John Birrell jb@freebsd.org
|
||||
* Portions Copyright 2013 Justin Hibbits jhibbits@freebsd.org
|
||||
* Portions Copyright 2013 Howard Su howardsu@freebsd.org
|
||||
* Portions Copyright 2015 Ruslan Bukin <br@bsdpad.com>
|
||||
*
|
||||
* $FreeBSD$
|
||||
*/
|
||||
|
||||
/*
|
||||
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
|
||||
* Use is subject to license terms.
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
#include <sys/param.h>
|
||||
|
||||
#include <sys/dtrace.h>
|
||||
|
||||
#include "fbt.h"
|
||||
|
||||
#define AARCH64_BRK 0xd4200000
|
||||
#define AARCH64_BRK_IMM16_SHIFT 5
|
||||
#define AARCH64_BRK_IMM16_VAL (0x40d << AARCH64_BRK_IMM16_SHIFT)
|
||||
#define FBT_PATCHVAL (AARCH64_BRK | AARCH64_BRK_IMM16_VAL)
|
||||
#define FBT_ENTRY "entry"
|
||||
#define FBT_RETURN "return"
|
||||
|
||||
int
|
||||
fbt_invop(uintptr_t addr, uintptr_t *stack, uintptr_t rval)
|
||||
{
|
||||
struct trapframe *frame;
|
||||
solaris_cpu_t *cpu;
|
||||
fbt_probe_t *fbt;
|
||||
|
||||
frame = (struct trapframe *)stack;
|
||||
cpu = &solaris_cpu[curcpu];
|
||||
fbt = fbt_probetab[FBT_ADDR2NDX(addr)];
|
||||
|
||||
for (; fbt != NULL; fbt = fbt->fbtp_hashnext) {
|
||||
if ((uintptr_t)fbt->fbtp_patchpoint == addr) {
|
||||
fbt->fbtp_invop_cnt++;
|
||||
cpu->cpu_dtrace_caller = addr;
|
||||
|
||||
dtrace_probe(fbt->fbtp_id, frame->tf_x[0],
|
||||
frame->tf_x[1], frame->tf_x[2],
|
||||
frame->tf_x[3], frame->tf_x[4]);
|
||||
|
||||
cpu->cpu_dtrace_caller = 0;
|
||||
return (fbt->fbtp_savedval);
|
||||
}
|
||||
}
|
||||
|
||||
return (0);
|
||||
}
|
||||
|
||||
void
|
||||
fbt_patch_tracepoint(fbt_probe_t *fbt, fbt_patchval_t val)
|
||||
{
|
||||
|
||||
*fbt->fbtp_patchpoint = val;
|
||||
cpu_icache_sync_range((vm_offset_t)fbt->fbtp_patchpoint, 4);
|
||||
}
|
||||
|
||||
int
|
||||
fbt_provide_module_function(linker_file_t lf, int symindx,
|
||||
linker_symval_t *symval, void *opaque)
|
||||
{
|
||||
fbt_probe_t *fbt, *retfbt;
|
||||
uint32_t *target, *start;
|
||||
uint32_t *instr, *limit;
|
||||
const char *name;
|
||||
char *modname;
|
||||
int offs;
|
||||
|
||||
modname = opaque;
|
||||
name = symval->name;
|
||||
|
||||
/* Check if function is excluded from instrumentation */
|
||||
if (fbt_excluded(name))
|
||||
return (0);
|
||||
|
||||
instr = (uint32_t *)(symval->value);
|
||||
limit = (uint32_t *)(symval->value + symval->size);
|
||||
|
||||
/* Look for stp (pre-indexed) operation */
|
||||
for (; instr < limit; instr++) {
|
||||
if ((*instr & LDP_STP_MASK) == STP_64)
|
||||
break;
|
||||
}
|
||||
|
||||
if (instr >= limit)
|
||||
return (0);
|
||||
|
||||
fbt = malloc(sizeof (fbt_probe_t), M_FBT, M_WAITOK | M_ZERO);
|
||||
fbt->fbtp_name = name;
|
||||
fbt->fbtp_id = dtrace_probe_create(fbt_id, modname,
|
||||
name, FBT_ENTRY, 3, fbt);
|
||||
fbt->fbtp_patchpoint = instr;
|
||||
fbt->fbtp_ctl = lf;
|
||||
fbt->fbtp_loadcnt = lf->loadcnt;
|
||||
fbt->fbtp_savedval = *instr;
|
||||
fbt->fbtp_patchval = FBT_PATCHVAL;
|
||||
fbt->fbtp_rval = DTRACE_INVOP_PUSHM;
|
||||
fbt->fbtp_symindx = symindx;
|
||||
|
||||
fbt->fbtp_hashnext = fbt_probetab[FBT_ADDR2NDX(instr)];
|
||||
fbt_probetab[FBT_ADDR2NDX(instr)] = fbt;
|
||||
|
||||
lf->fbt_nentries++;
|
||||
|
||||
retfbt = NULL;
|
||||
again:
|
||||
for (; instr < limit; instr++) {
|
||||
if (*instr == RET_INSTR)
|
||||
break;
|
||||
else if ((*instr & B_MASK) == B_INSTR) {
|
||||
offs = (*instr & B_DATA_MASK);
|
||||
offs *= 4;
|
||||
target = (instr + offs);
|
||||
start = (uint32_t *)symval->value;
|
||||
if (target >= limit || target < start)
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (instr >= limit)
|
||||
return (0);
|
||||
|
||||
/*
|
||||
* We have a winner!
|
||||
*/
|
||||
fbt = malloc(sizeof (fbt_probe_t), M_FBT, M_WAITOK | M_ZERO);
|
||||
fbt->fbtp_name = name;
|
||||
if (retfbt == NULL) {
|
||||
fbt->fbtp_id = dtrace_probe_create(fbt_id, modname,
|
||||
name, FBT_RETURN, 3, fbt);
|
||||
} else {
|
||||
retfbt->fbtp_next = fbt;
|
||||
fbt->fbtp_id = retfbt->fbtp_id;
|
||||
}
|
||||
retfbt = fbt;
|
||||
|
||||
fbt->fbtp_patchpoint = instr;
|
||||
fbt->fbtp_ctl = lf;
|
||||
fbt->fbtp_loadcnt = lf->loadcnt;
|
||||
fbt->fbtp_symindx = symindx;
|
||||
if ((*instr & B_MASK) == B_INSTR)
|
||||
fbt->fbtp_rval = DTRACE_INVOP_B;
|
||||
else
|
||||
fbt->fbtp_rval = DTRACE_INVOP_RET;
|
||||
fbt->fbtp_savedval = *instr;
|
||||
fbt->fbtp_patchval = FBT_PATCHVAL;
|
||||
fbt->fbtp_hashnext = fbt_probetab[FBT_ADDR2NDX(instr)];
|
||||
fbt_probetab[FBT_ADDR2NDX(instr)] = fbt;
|
||||
|
||||
lf->fbt_nentries++;
|
||||
|
||||
instr++;
|
||||
goto again;
|
||||
}
|
30
sys/cddl/dev/fbt/aarch64/fbt_isa.h
Normal file
30
sys/cddl/dev/fbt/aarch64/fbt_isa.h
Normal file
@ -0,0 +1,30 @@
|
||||
/*
|
||||
* CDDL HEADER START
|
||||
*
|
||||
* The contents of this file are subject to the terms of the
|
||||
* Common Development and Distribution License (the "License").
|
||||
* You may not use this file except in compliance with the License.
|
||||
*
|
||||
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
||||
* or http://www.opensolaris.org/os/licensing.
|
||||
* See the License for the specific language governing permissions
|
||||
* and limitations under the License.
|
||||
*
|
||||
* When distributing Covered Code, include this CDDL HEADER in each
|
||||
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
||||
* If applicable, add the following below this CDDL HEADER, with the
|
||||
* fields enclosed by brackets "[]" replaced with your own identifying
|
||||
* information: Portions Copyright [yyyy] [name of copyright owner]
|
||||
*
|
||||
* CDDL HEADER END
|
||||
*
|
||||
* $FreeBSD$
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef _FBT_ISA_H_
|
||||
#define _FBT_ISA_H_
|
||||
|
||||
typedef uint32_t fbt_patchval_t;
|
||||
|
||||
#endif
|
@ -43,9 +43,8 @@
|
||||
#include <sys/dtrace.h>
|
||||
#include <sys/lockstat.h>
|
||||
|
||||
#if defined(__i386__) || defined(__amd64__) || \
|
||||
defined(__mips__) || defined(__powerpc__) || \
|
||||
defined(__arm__)
|
||||
#if defined(__aarch64__) || defined(__amd64__) || defined(__arm__) || \
|
||||
defined(__i386__) || defined(__mips__) || defined(__powerpc__)
|
||||
#define LOCKSTAT_AFRAMES 1
|
||||
#else
|
||||
#error "architecture not supported"
|
||||
|
@ -140,6 +140,11 @@ struct profile_probe_percpu;
|
||||
#define PROF_ARTIFICIAL_FRAMES 10
|
||||
#endif
|
||||
|
||||
#ifdef __aarch64__
|
||||
/* TODO: verify */
|
||||
#define PROF_ARTIFICIAL_FRAMES 10
|
||||
#endif
|
||||
|
||||
typedef struct profile_probe {
|
||||
char prof_name[PROF_NAMELEN];
|
||||
dtrace_id_t prof_id;
|
||||
|
@ -66,3 +66,7 @@ libkern/flsl.c standard
|
||||
libkern/flsll.c standard
|
||||
libkern/memmove.c standard
|
||||
libkern/memset.c standard
|
||||
cddl/compat/opensolaris/kern/opensolaris_atomic.c optional zfs | dtrace compile-with "${CDDL_C}"
|
||||
cddl/dev/dtrace/aarch64/dtrace_asm.S optional dtrace compile-with "${DTRACE_S}"
|
||||
cddl/dev/dtrace/aarch64/dtrace_subr.c optional dtrace compile-with "${DTRACE_C}"
|
||||
cddl/dev/fbt/aarch64/fbt_isa.c optional dtrace_fbt | dtraceall compile-with "${FBT_C}"
|
||||
|
@ -22,7 +22,7 @@ SUBDIR+= fbt fasttrap
|
||||
.if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_ARCH} == "powerpc64"
|
||||
SUBDIR+= systrace_freebsd32
|
||||
.endif
|
||||
.if ${MACHINE_CPUARCH} == "arm"
|
||||
.if ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "arm"
|
||||
SUBDIR+= fbt
|
||||
.endif
|
||||
.include <bsd.subdir.mk>
|
||||
|
@ -69,7 +69,8 @@ MODULE_DEPEND(dtraceall, dtmalloc, 1, 1, 1);
|
||||
#if defined(NFSCL)
|
||||
MODULE_DEPEND(dtraceall, dtnfscl, 1, 1, 1);
|
||||
#endif
|
||||
#if defined(__amd64__) || defined(__i386__) || defined(__powerpc__) || defined(__arm__)
|
||||
#if defined(__aarch64__) || defined(__amd64__) || defined(__arm__) || \
|
||||
defined(__i386__) || defined(__powerpc__)
|
||||
MODULE_DEPEND(dtraceall, fbt, 1, 1, 1);
|
||||
#endif
|
||||
#if defined(__amd64__) || defined(__i386__)
|
||||
|
Loading…
Reference in New Issue
Block a user