Add arm support in libthread_db.

1 files changed, 116 insertions, 0 deletions

diff --git a/lib/libthread_db/arch/arm/libpthread_md.c b/lib/libthread_db/arch/arm/libpthread_md.c
new file mode 100644
index 0000000..a444598
--- /dev/null
+++ b/lib/libthread_db/arch/arm/libpthread_md.c
@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2007 Olivier Houchard
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <string.h>
+#include <sys/types.h>
+#include <proc_service.h>
+#include <thread_db.h>
+
+#include "libpthread_db.h"
+
+void
+pt_reg_to_ucontext(const struct reg *r, ucontext_t *uc)
+{
+	mcontext_t *mc = &uc->uc_mcontext;
+	__greg_t *gr = mc->__gregs;
+
+	gr[_REG_R0] = r->r[0];
+	gr[_REG_R1] = r->r[1];
+	gr[_REG_R2] = r->r[2];
+	gr[_REG_R3] = r->r[3];
+	gr[_REG_R4] = r->r[4];
+	gr[_REG_R5] = r->r[5];
+	gr[_REG_R6] = r->r[6];
+	gr[_REG_R7] = r->r[7];
+	gr[_REG_R8] = r->r[8];
+	gr[_REG_R9] = r->r[9];
+	gr[_REG_R10] = r->r[10];
+	gr[_REG_R11] = r->r[11];
+	gr[_REG_R12] = r->r[12];
+	gr[_REG_SP] = r->r_sp;
+	gr[_REG_LR] = r->r_lr;
+	gr[_REG_PC] = r->r_pc;
+	gr[_REG_CPSR] = r->r_cpsr;
+}
+
+void
+pt_ucontext_to_reg(const ucontext_t *uc, struct reg *r)
+{
+	const mcontext_t *mc = &uc->uc_mcontext;
+
+	const __greg_t *gr = mc->__gregs;
+
+	r->r[0] = gr[_REG_R0];
+	r->r[1] = gr[_REG_R1];
+	r->r[2] = gr[_REG_R2];
+	r->r[3] = gr[_REG_R3];
+	r->r[4] = gr[_REG_R4];
+	r->r[5] = gr[_REG_R5];
+	r->r[6] = gr[_REG_R6];
+	r->r[7] = gr[_REG_R7];
+	r->r[8] = gr[_REG_R8];
+	r->r[9] = gr[_REG_R9];
+	r->r[10] = gr[_REG_R10];
+	r->r[11] = gr[_REG_R11];
+	r->r[12] = gr[_REG_R12];
+	r->r_sp = gr[_REG_SP];
+	r->r_lr = gr[_REG_LR];
+	r->r_pc = gr[_REG_PC];
+	r->r_cpsr = gr[_REG_CPSR];
+}
+
+void
+pt_fpreg_to_ucontext(const struct fpreg *r, ucontext_t *uc)
+{
+	mcontext_t *mc = &uc->uc_mcontext;
+
+	/* XXX */
+	memset(&mc->__fpu.__fpregs, 0, sizeof(__fpregset_t));
+}
+
+void
+pt_ucontext_to_fpreg(const ucontext_t *uc, struct fpreg *r)
+{
+	const mcontext_t *mc = &uc->uc_mcontext;
+
+	/* XXX */
+	memset(r, 0, sizeof(*r));
+}
+
+void
+pt_md_init(void)
+{
+}
+
+int
+pt_reg_sstep(struct reg *reg, int step)
+{
+
+	/* XXX */
+}