aboutsummaryrefslogtreecommitdiff
path: root/cddl/contrib
diff options
context:
space:
mode:
authorGeorge V. Neville-Neil <gnn@FreeBSD.org>2015-02-10 19:41:30 +0000
committerGeorge V. Neville-Neil <gnn@FreeBSD.org>2015-02-10 19:41:30 +0000
commitfcb560670601b2a4d87bb31d7531c8dcc37ee71b (patch)
tree04f2661f10ad407d8e68f760bfcd884bcfdc5cc3 /cddl/contrib
parent950813c4870e6ea4cc19aa62349b59a4ea8be9c1 (diff)
downloadsrc-fcb560670601b2a4d87bb31d7531c8dcc37ee71b.tar.gz
src-fcb560670601b2a4d87bb31d7531c8dcc37ee71b.zip
Initial version of DTrace on ARM32.
Submitted by: Howard Su based on work by Oleksandr Tymoshenko Reviewed by: ian, andrew, rpaulo, markj
Notes
Notes: svn path=/head/; revision=278529
Diffstat (limited to 'cddl/contrib')
-rw-r--r--cddl/contrib/opensolaris/lib/libdtrace/arm/dt_isadep.c190
-rw-r--r--cddl/contrib/opensolaris/tools/ctf/cvt/ctf.c4
2 files changed, 192 insertions, 2 deletions
diff --git a/cddl/contrib/opensolaris/lib/libdtrace/arm/dt_isadep.c b/cddl/contrib/opensolaris/lib/libdtrace/arm/dt_isadep.c
new file mode 100644
index 000000000000..25a250dd525d
--- /dev/null
+++ b/cddl/contrib/opensolaris/lib/libdtrace/arm/dt_isadep.c
@@ -0,0 +1,190 @@
+/*
+ * 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
+ *
+ */
+
+#pragma ident "%Z%%M% %I% %E% SMI"
+
+#include <stdlib.h>
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+#include <libgen.h>
+
+#include <dt_impl.h>
+#include <dt_pid.h>
+
+#if !defined(sun)
+#define PR_MODEL_ILP32 1
+#define PR_MODEL_LP64 2
+#include <libproc_compat.h>
+#endif
+
+#define OP(x) ((x) >> 30)
+#define OP2(x) (((x) >> 22) & 0x07)
+#define COND(x) (((x) >> 25) & 0x0f)
+#define A(x) (((x) >> 29) & 0x01)
+
+#define OP_BRANCH 0
+
+#define OP2_BPcc 0x1
+#define OP2_Bicc 0x2
+#define OP2_BPr 0x3
+#define OP2_FBPfcc 0x5
+#define OP2_FBfcc 0x6
+
+/*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)
+{
+
+ uint32_t *text;
+ int i;
+ int srdepth = 0;
+
+ dt_dprintf("%s: unimplemented\n", __func__);
+ return (DT_PROC_ERR);
+
+ if ((text = malloc(symp->st_size + 4)) == NULL) {
+ dt_dprintf("mr sparkle: malloc() failed\n");
+ return (DT_PROC_ERR);
+ }
+
+ if (Pread(P, text, symp->st_size, symp->st_value) != symp->st_size) {
+ dt_dprintf("mr sparkle: Pread() failed\n");
+ free(text);
+ return (DT_PROC_ERR);
+ }
+
+ /*
+ * Leave a dummy instruction in the last slot to simplify edge
+ * conditions.
+ */
+ text[symp->st_size / 4] = 0;
+
+ ftp->ftps_type = DTFTP_RETURN;
+ ftp->ftps_pc = symp->st_value;
+ ftp->ftps_size = symp->st_size;
+ ftp->ftps_noffs = 0;
+
+
+ free(text);
+ if (ftp->ftps_noffs > 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 (ftp->ftps_noffs);
+}
+
+/*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 (off & 0x3)
+ 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/tools/ctf/cvt/ctf.c b/cddl/contrib/opensolaris/tools/ctf/cvt/ctf.c
index 82ec5fafda4a..c6f47af867d8 100644
--- a/cddl/contrib/opensolaris/tools/ctf/cvt/ctf.c
+++ b/cddl/contrib/opensolaris/tools/ctf/cvt/ctf.c
@@ -169,12 +169,12 @@ write_objects(iidesc_t *idp, ctf_buf_t *b)
{
ushort_t id = (idp ? idp->ii_dtype->t_id : 0);
- ctf_buf_write(b, &id, sizeof (id));
-
if (target_requires_swap) {
SWAP_16(id);
}
+ ctf_buf_write(b, &id, sizeof (id));
+
debug(3, "Wrote object %s (%d)\n", (idp ? idp->ii_name : "(null)"), id);
}