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authorDale Rahn <drahn@cvs.openbsd.org>2004-02-02 19:42:27 +0000
committerDale Rahn <drahn@cvs.openbsd.org>2004-02-02 19:42:27 +0000
commit0d70551aeafe691cdfdd378df90ff584296c72e1 (patch)
tree97986d830f11061c05a3f301bb43abbe430c0d72
parent387178bc0c139def77f3f6aa5581401c8452724b (diff)
partially working...
-rw-r--r--usr.bin/pmdb/arch/arm/Makefile.inc1
-rw-r--r--usr.bin/pmdb/arch/arm/arm.c92
-rw-r--r--usr.bin/pmdb/arch/arm/pmdb_machdep.h30
3 files changed, 123 insertions, 0 deletions
diff --git a/usr.bin/pmdb/arch/arm/Makefile.inc b/usr.bin/pmdb/arch/arm/Makefile.inc
new file mode 100644
index 00000000000..176665cf595
--- /dev/null
+++ b/usr.bin/pmdb/arch/arm/Makefile.inc
@@ -0,0 +1 @@
+SRCS+=arm.c
diff --git a/usr.bin/pmdb/arch/arm/arm.c b/usr.bin/pmdb/arch/arm/arm.c
new file mode 100644
index 00000000000..bc0965bb294
--- /dev/null
+++ b/usr.bin/pmdb/arch/arm/arm.c
@@ -0,0 +1,92 @@
+/* $OpenBSD: arm.c,v 1.1 2004/02/02 19:42:26 drahn Exp $ */
+/*
+ * Copyright (c) 2002 Dale Rahn <drahn@openbsd.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. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``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 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.
+ */
+
+
+#include <stddef.h>
+#include <sys/param.h>
+#include <sys/ptrace.h>
+#include <machine/reg.h>
+#include <machine/frame.h>
+#include <string.h>
+#include "pmdb.h"
+
+static const char *md_reg_names[] = {
+ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
+ "r8", "r9", "r10","r11","r12","sp", "lr", "pc", "cpsr"
+};
+
+struct md_def md_def = { md_reg_names, 16, 16};
+
+void
+md_def_init(void)
+{
+ /* no need to do anything */
+}
+
+int
+md_getframe(struct pstate *ps, int frame, struct md_frame *fram)
+{
+ struct reg r;
+ reg fp, pc;
+ int i;
+
+ if (process_getregs(ps, &r))
+ return (-1);
+ fp = r.r_sp;
+ if (frame == 0) {
+ pc = r.r_pc;
+ goto out;
+ }
+ pc = r.r_lr;
+ for (i = 1; i < frame; i++) {
+ if (fp != (fp & ~7)) { /* should be 0xf */
+ return -1;
+ }
+ if (process_read(ps, fp, &fp, sizeof(fp)) < 0)
+ return -1;
+ if (process_read(ps, fp+4, &pc, sizeof(pc)) < 0)
+ return -1;
+ if (fp == 0) {
+ return -1;
+ }
+ }
+out:
+ fram->pc = pc;
+ fram->fp = fp;
+ fram->nargs = 0;
+ return 0;
+}
+
+int
+md_getregs(struct pstate *ps, reg *regs)
+{
+ struct reg md_reg;
+ if (process_getregs(ps, &md_reg))
+ return -1;
+ memcpy(regs, &md_reg, 32 * sizeof(long));
+ memcpy(&regs[32], &md_reg.r_pc, 7 * sizeof(long));
+ return 0;
+}
diff --git a/usr.bin/pmdb/arch/arm/pmdb_machdep.h b/usr.bin/pmdb/arch/arm/pmdb_machdep.h
new file mode 100644
index 00000000000..021fe0e7b6f
--- /dev/null
+++ b/usr.bin/pmdb/arch/arm/pmdb_machdep.h
@@ -0,0 +1,30 @@
+/* $OpenBSD: pmdb_machdep.h,v 1.1 2004/02/02 19:42:26 drahn Exp $ */
+/*
+ * Copyright (c) 2002 Dale Rahn <drahn@openbsd.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. The name of the author may not be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED ``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 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.
+ */
+
+/* SWI */
+#define BREAKPOINT { 0xef, 0xaf, 0xff, 0xff }
+#define BREAKPOINT_LEN 4
+#define BREAKPOINT_DECR_PC 4