1 files changed, 0 insertions, 286 deletions
diff --git a/gnu/usr.bin/gdb/kgdb/trgt_arm.c b/gnu/usr.bin/gdb/kgdb/trgt_arm.c
deleted file mode 100644
index 13111bc43469..000000000000
--- a/gnu/usr.bin/gdb/kgdb/trgt_arm.c
+++ /dev/null
@@ -1,286 +0,0 @@
-/*
- * Copyright (c) 2004 Marcel Moolenaar
- * 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 AUTHORS ``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 AUTHORS 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 <sys/types.h>
-#ifndef CROSS_DEBUGGER
-#include <machine/pcb.h>
-#include <machine/frame.h>
-#include <machine/armreg.h>
-#endif
-#include <err.h>
-#include <kvm.h>
-#include <string.h>
-
-#include <defs.h>
-#include <target.h>
-#include <gdbthread.h>
-#include <inferior.h>
-#include <regcache.h>
-#include <frame-unwind.h>
-#include <arm-tdep.h>
-
-#include "kgdb.h"
-
-CORE_ADDR
-kgdb_trgt_core_pcb(u_int cpuid)
-{
-#ifndef CROSS_DEBUGGER
-	return (kgdb_trgt_stop_pcb(cpuid, sizeof(struct pcb)));
-#else
-	return -1;
-#endif
-}
-
-void
-kgdb_trgt_fetch_registers(int regno __unused)
-{
-#ifndef CROSS_DEBUGGER
-	struct kthr *kt;
-	struct pcb pcb;
-	int i;
-
-	kt = kgdb_thr_lookup_tid(ptid_get_pid(inferior_ptid));
-	if (kt == NULL)
-		return;
-	if (kvm_read(kvm, kt->pcb, &pcb, sizeof(pcb)) != sizeof(pcb)) {
-		warnx("kvm_read: %s", kvm_geterr(kvm));
-		memset(&pcb, 0, sizeof(pcb));
-	}
-	for (i = ARM_A1_REGNUM + 4; i <= ARM_SP_REGNUM; i++) {
-		supply_register(i, (char *)&pcb.pcb_regs.sf_r4 +
-		    (i - (ARM_A1_REGNUM + 4 )) * 4);
-	}
-	supply_register(ARM_PC_REGNUM, (char *)&pcb.pcb_regs.sf_pc);
-	supply_register(ARM_LR_REGNUM, (char *)&pcb.pcb_regs.sf_lr);
-#endif
-}
-
-void
-kgdb_trgt_store_registers(int regno __unused)
-{
-	fprintf_unfiltered(gdb_stderr, "XXX: %s\n", __func__);
-}
-
-void
-kgdb_trgt_new_objfile(struct objfile *objfile)
-{
-}
-
-#ifndef CROSS_DEBUGGER
-struct kgdb_frame_cache {
-	CORE_ADDR	fp;
-	CORE_ADDR	sp;
-	CORE_ADDR	pc;
-};
-
-static int kgdb_trgt_frame_offset[26] = {
-	offsetof(struct trapframe, tf_r0),
-	offsetof(struct trapframe, tf_r1),
-	offsetof(struct trapframe, tf_r2),
-	offsetof(struct trapframe, tf_r3),
-	offsetof(struct trapframe, tf_r4),
-	offsetof(struct trapframe, tf_r5),
-	offsetof(struct trapframe, tf_r6),
-	offsetof(struct trapframe, tf_r7),
-	offsetof(struct trapframe, tf_r8),
-	offsetof(struct trapframe, tf_r9),
-	offsetof(struct trapframe, tf_r10),
-	offsetof(struct trapframe, tf_r11),
-	offsetof(struct trapframe, tf_r12),
-	offsetof(struct trapframe, tf_svc_sp),
-	offsetof(struct trapframe, tf_svc_lr),
-	offsetof(struct trapframe, tf_pc),
-	-1, -1, -1, -1, -1, -1, -1, -1, -1,
-	offsetof(struct trapframe, tf_spsr)
-};
-
-static struct kgdb_frame_cache *
-kgdb_trgt_frame_cache(struct frame_info *next_frame, void **this_cache)
-{
-	char buf[MAX_REGISTER_SIZE];
-	struct kgdb_frame_cache *cache;
-
-	cache = *this_cache;
-	if (cache == NULL) {
-		cache = FRAME_OBSTACK_ZALLOC(struct kgdb_frame_cache);
-		*this_cache = cache;
-		frame_unwind_register(next_frame, ARM_SP_REGNUM, buf);
-		cache->sp = extract_unsigned_integer(buf,
-		    register_size(current_gdbarch, ARM_SP_REGNUM));
-		frame_unwind_register(next_frame, ARM_FP_REGNUM, buf);
-		cache->fp = extract_unsigned_integer(buf,
-		    register_size(current_gdbarch, ARM_FP_REGNUM));
-		cache->pc = frame_func_unwind(next_frame);
-	}
-	return (cache);
-}
-
-static int is_undef;
-
-static void
-kgdb_trgt_trapframe_this_id(struct frame_info *next_frame, void **this_cache,
-    struct frame_id *this_id)
-{
-	struct kgdb_frame_cache *cache;
-
-	cache = kgdb_trgt_frame_cache(next_frame, this_cache);
-	*this_id = frame_id_build(cache->sp, cache->pc);
-}
-
-static void
-kgdb_trgt_trapframe_prev_register(struct frame_info *next_frame,
-    void **this_cache, int regnum, int *optimizedp, enum lval_type *lvalp,
-    CORE_ADDR *addrp, int *realnump, void *valuep)
-{
-	char dummy_valuep[MAX_REGISTER_SIZE];
-	struct kgdb_frame_cache *cache;
-	int ofs, regsz;
-	CORE_ADDR sp;
-
-	regsz = register_size(current_gdbarch, regnum);
-
-	if (valuep == NULL)
-		valuep = dummy_valuep;
-	memset(valuep, 0, regsz);
-	*optimizedp = 0;
-	*addrp = 0;
-	*lvalp = not_lval;
-	*realnump = -1;
-
-	ofs = (regnum >= 0 && regnum <= ARM_PS_REGNUM)
-	    ? kgdb_trgt_frame_offset[regnum] : -1;
-	if (ofs == -1)
-		return;
-
-	cache = kgdb_trgt_frame_cache(next_frame, this_cache);
-	sp = cache->sp;
-
-	ofs = kgdb_trgt_frame_offset[regnum];
-	*addrp = sp + ofs;
-	*lvalp = lval_memory;
-	target_read_memory(*addrp, valuep, regsz);
-}
-
-static const struct frame_unwind kgdb_trgt_trapframe_unwind = {
-        UNKNOWN_FRAME,
-        &kgdb_trgt_trapframe_this_id,
-        &kgdb_trgt_trapframe_prev_register
-};
-#endif
-
-const struct frame_unwind *
-kgdb_trgt_trapframe_sniffer(struct frame_info *next_frame)
-{
-#ifndef CROSS_DEBUGGER
-	char *pname;
-	CORE_ADDR pc;
-
-	pc = frame_pc_unwind(next_frame);
-	pname = NULL;
-	find_pc_partial_function(pc, &pname, NULL, NULL);
-	if (pname == NULL) {
-		is_undef = 0;
-		return (NULL);
-	}
-	if (!strcmp(pname, "undefinedinstruction"))
-		is_undef = 1;
-	if (strcmp(pname, "Laddress_exception_entry") == 0 ||
-	    strcmp(pname, "undefined_entry") == 0 ||
-	    strcmp(pname, "exception_exit") == 0 ||
-	    strcmp(pname, "Laddress_exception_msg") == 0 ||
-	    strcmp(pname, "irq_entry") == 0)
-		return (&kgdb_trgt_trapframe_unwind);
-	if (!strcmp(pname, "undefinedinstruction"))
-		is_undef = 1;
-	else
-		is_undef = 0;
-#endif
-	return (NULL);
-}
-
-/*
- * This function ensures, that the PC is inside the
- * function section which is understood by GDB.
- *
- * Return 0 when fixup is necessary, -1 otherwise.
- */
-int
-kgdb_trgt_pc_fixup(CORE_ADDR *pc)
-{
-#ifndef CROSS_DEBUGGER
-	struct minimal_symbol *msymbol;
-	int valpc;
-
-	/*
-	 * exception_exit and swi_exit are special. These functions
-	 * are artificially injected into the stack to be executed
-	 * as the last entry in calling chain when all functions exit.
-	 * Treat them differently.
-	 */
-	msymbol = lookup_minimal_symbol_by_pc(*pc);
-	if (msymbol != NULL) {
-		if (strcmp(DEPRECATED_SYMBOL_NAME(msymbol), "exception_exit") == 0)
-			return (0);
-		if (strcmp(DEPRECATED_SYMBOL_NAME(msymbol), "swi_exit") == 0)
-			return (0);
-	}
-
-	/*
-	 * kdb_enter contains an invalid instruction which is supposed
-	 * to generate a trap. BFD does not understand it and treats
-	 * this part of function as a separate function. Move PC
-	 * two instruction earlier to be inside kdb_enter section.
-	 */
-	target_read_memory(*pc - 4, (char*)&valpc, 4);
-	if (valpc == 0xe7ffffff) {
-		*pc = *pc - 8;
-		return (0);
-	}
-
-	/*
-	 * When the panic/vpanic is the last (noreturn) function,
-	 * the bottom of the calling function looks as below.
-	 *   mov lr, pc
-	 *   b panic
-	 * Normally, GDB is not able to detect function boundaries,
-	 * so move the PC two instruction earlier where it can deal
-	 * with it.
-	 * Match this pair of instructions: mov lr, pc followed with
-	 * non-linked branch.
-	 */
-	if ((valpc & 0xff000000) == 0xea000000) {
-		target_read_memory(*pc - 8, (char*)&valpc, 4);
-		if (valpc == 0xe1a0e00f) {
-			*pc -= 8;
-			return (0);
-		}
-	}
-#endif
-	return (-1);
-}