From 70d4d5a42d9036c0ff34c844811fa1aab3ab394c Mon Sep 17 00:00:00 2001
From: br
Date: Wed, 1 Jul 2015 15:51:11 +0000
Subject: First cut of DTrace for AArch64.
Reviewed by: andrew, emaste
Sponsored by: ARM Limited
Differential Revision: https://reviews.freebsd.org/D2738
---
.../opensolaris/lib/libdtrace/aarch64/dt_isadep.c | 139 +++++++++++++++++++++
.../opensolaris/lib/libdtrace/common/dt_link.c | 20 ++-
2 files changed, 156 insertions(+), 3 deletions(-)
create mode 100644 cddl/contrib/opensolaris/lib/libdtrace/aarch64/dt_isadep.c
(limited to 'cddl/contrib/opensolaris')
diff --git a/cddl/contrib/opensolaris/lib/libdtrace/aarch64/dt_isadep.c b/cddl/contrib/opensolaris/lib/libdtrace/aarch64/dt_isadep.c
new file mode 100644
index 0000000..9f5af85
--- /dev/null
+++ b/cddl/contrib/opensolaris/lib/libdtrace/aarch64/dt_isadep.c
@@ -0,0 +1,139 @@
+/*
+ * 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.
+ * Copyright 2014 Howard Su
+ * Copyright 2015 George V. Neville-Neil
+ * Copyright 2015 Ruslan Bukin
+ */
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include
+#include
+#include
+#include
+#include
+
+#include
+#include
+
+#if !defined(sun)
+#include
+#endif
+
+/*ARGSUSED*/
+int
+dt_pid_create_entry_probe(struct ps_prochandle *P, dtrace_hdl_t *dtp,
+ fasttrap_probe_spec_t *ftp, const GElf_Sym *symp)
+{
+
+ ftp->ftps_type = DTFTP_ENTRY;
+ ftp->ftps_pc = (uintptr_t)symp->st_value;
+ ftp->ftps_size = (size_t)symp->st_size;
+ ftp->ftps_noffs = 1;
+ ftp->ftps_offs[0] = 0;
+
+ if (ioctl(dtp->dt_ftfd, FASTTRAPIOC_MAKEPROBE, ftp) != 0) {
+ dt_dprintf("fasttrap probe creation ioctl failed: %s\n",
+ strerror(errno));
+ return (dt_set_errno(dtp, errno));
+ }
+
+ return (1);
+}
+
+int
+dt_pid_create_return_probe(struct ps_prochandle *P, dtrace_hdl_t *dtp,
+ fasttrap_probe_spec_t *ftp, const GElf_Sym *symp, uint64_t *stret)
+{
+
+ dt_dprintf("%s: unimplemented\n", __func__);
+
+ return (DT_PROC_ERR);
+}
+
+/*ARGSUSED*/
+int
+dt_pid_create_offset_probe(struct ps_prochandle *P, dtrace_hdl_t *dtp,
+ fasttrap_probe_spec_t *ftp, const GElf_Sym *symp, ulong_t off)
+{
+
+ if (!ALIGNED_POINTER(off, 4))
+ return (DT_PROC_ALIGN);
+
+ ftp->ftps_type = DTFTP_OFFSETS;
+ ftp->ftps_pc = (uintptr_t)symp->st_value;
+ ftp->ftps_size = (size_t)symp->st_size;
+ ftp->ftps_noffs = 1;
+ ftp->ftps_offs[0] = off;
+
+ if (ioctl(dtp->dt_ftfd, FASTTRAPIOC_MAKEPROBE, ftp) != 0) {
+ dt_dprintf("fasttrap probe creation ioctl failed: %s\n",
+ strerror(errno));
+ return (dt_set_errno(dtp, errno));
+ }
+
+ return (1);
+}
+
+/*ARGSUSED*/
+int
+dt_pid_create_glob_offset_probes(struct ps_prochandle *P, dtrace_hdl_t *dtp,
+ fasttrap_probe_spec_t *ftp, const GElf_Sym *symp, const char *pattern)
+{
+ ulong_t i;
+
+ ftp->ftps_type = DTFTP_OFFSETS;
+ ftp->ftps_pc = (uintptr_t)symp->st_value;
+ ftp->ftps_size = (size_t)symp->st_size;
+ ftp->ftps_noffs = 0;
+
+ /*
+ * If we're matching against everything, just iterate through each
+ * instruction in the function, otherwise look for matching offset
+ * names by constructing the string and comparing it against the
+ * pattern.
+ */
+ if (strcmp("*", pattern) == 0) {
+ for (i = 0; i < symp->st_size; i += 4) {
+ ftp->ftps_offs[ftp->ftps_noffs++] = i;
+ }
+ } else {
+ char name[sizeof (i) * 2 + 1];
+
+ for (i = 0; i < symp->st_size; i += 4) {
+ (void) sprintf(name, "%lx", i);
+ if (gmatch(name, pattern))
+ ftp->ftps_offs[ftp->ftps_noffs++] = i;
+ }
+ }
+
+ if (ioctl(dtp->dt_ftfd, FASTTRAPIOC_MAKEPROBE, ftp) != 0) {
+ dt_dprintf("fasttrap probe creation ioctl failed: %s\n",
+ strerror(errno));
+ return (dt_set_errno(dtp, errno));
+ }
+
+ return (ftp->ftps_noffs);
+}
diff --git a/cddl/contrib/opensolaris/lib/libdtrace/common/dt_link.c b/cddl/contrib/opensolaris/lib/libdtrace/common/dt_link.c
index f9b9625..f574cf7 100644
--- a/cddl/contrib/opensolaris/lib/libdtrace/common/dt_link.c
+++ b/cddl/contrib/opensolaris/lib/libdtrace/common/dt_link.c
@@ -227,7 +227,10 @@ prepare_elf32(dtrace_hdl_t *dtp, const dof_hdr_t *dof, dof_elf32_t *dep)
s = &dofs[dofrh->dofr_tgtsec];
for (j = 0; j < nrel; j++) {
-#if defined(__arm__)
+#if defined(__aarch64__)
+/* XXX */
+printf("%s:%s(%d): DOODAD\n",__FUNCTION__,__FILE__,__LINE__);
+#elif defined(__arm__)
/* XXX */
printf("%s:%s(%d): DOODAD\n",__FUNCTION__,__FILE__,__LINE__);
#elif defined(__i386) || defined(__amd64)
@@ -426,7 +429,9 @@ prepare_elf64(dtrace_hdl_t *dtp, const dof_hdr_t *dof, dof_elf64_t *dep)
s = &dofs[dofrh->dofr_tgtsec];
for (j = 0; j < nrel; j++) {
-#if defined(__arm__)
+#if defined(__aarch64__)
+/* XXX */
+#elif defined(__arm__)
/* XXX */
#elif defined(__mips__)
/* XXX */
@@ -822,7 +827,16 @@ dt_symtab_lookup(Elf_Data *data_sym, int nsym, uintptr_t addr, uint_t shn,
return (ret);
}
-#if defined(__arm__)
+#if defined(__aarch64__)
+/* XXX */
+static int
+dt_modtext(dtrace_hdl_t *dtp, char *p, int isenabled, GElf_Rela *rela,
+ uint32_t *off)
+{
+printf("%s:%s(%d): DOODAD\n",__FUNCTION__,__FILE__,__LINE__);
+ return (0);
+}
+#elif defined(__arm__)
/* XXX */
static int
dt_modtext(dtrace_hdl_t *dtp, char *p, int isenabled, GElf_Rela *rela,
--
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