$(srcdir)/linux-ppc-low.c $(srcdir)/linux-ppc64-low.c \
$(srcdir)/linux-s390-low.c \
$(srcdir)/linux-sh-low.c $(srcdir)/linux-x86-64-low.c \
+ $(srcdir)/linux-xtensa-low.c \
$(srcdir)/win32-arm-low.c $(srcdir)/win32-i386-low.c \
$(srcdir)/win32-low.c $(srcdir)/wincecompat.c \
$(srcdir)/hostio.c $(srcdir)/hostio-errno.c
rm -f gdbserver$(EXEEXT) gdbreplay$(EXEEXT) core make.log
rm -f reg-arm.c reg-i386.c reg-ia64.c reg-m32r.c reg-m68k.c
rm -f reg-ppc.c reg-sh.c reg-spu.c reg-x86-64.c reg-i386-linux.c
- rm -f reg-cris.c reg-crisv32.c reg-x86-64-linux.c
+ rm -f reg-cris.c reg-crisv32.c reg-x86-64-linux.c reg-xtensa.c
rm -f arm-with-iwmmxt.c mips-linux.c mips64-linux.c
rm -f powerpc-32.c powerpc-64.c powerpc-e500.c
rm -f xml-builtin.c stamp-xml target.xml
linux-sh-low.o: linux-sh-low.c $(linux_low_h) $(server_h)
linux-x86-64-low.o: linux-x86-64-low.c $(linux_low_h) $(server_h) \
$(gdb_proc_service_h)
+linux-xtensa-low.o: linux-xtensa-low.c xtensa-xtregs.c $(linux_low_h) $(server_h)
win32_low_h = $(srcdir)/win32-low.h
reg-x86-64-linux.o : reg-x86-64-linux.c $(regdef_h)
reg-x86-64-linux.c : $(srcdir)/../regformats/reg-x86-64-linux.dat $(regdat_sh)
$(SHELL) $(regdat_sh) $(srcdir)/../regformats/reg-x86-64-linux.dat reg-x86-64-linux.c
-
+reg-xtensa.o : reg-xtensa.c $(regdef_h)
+reg-xtensa.c : $(srcdir)/../regformats/reg-xtensa.dat $(regdat_sh)
+ $(SHELL) $(regdat_sh) $(srcdir)/../regformats/reg-xtensa.dat reg-xtensa.c
# This is the end of "Makefile.in".
--- /dev/null
+/* GNU/Linux/Xtensa specific low level interface, for the remote server for GDB.
+ Copyright 2007, 2008 Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+
+#include "server.h"
+#include "linux-low.h"
+
+#include <sys/ptrace.h>
+#include <xtensa-config.h>
+
+#include "xtensa-xtregs.c"
+
+enum regnum {
+ R_PC=0, R_PS,
+ R_LBEG, R_LEND, R_LCOUNT,
+ R_SAR,
+ R_WS, R_WB,
+ R_A0 = 64
+};
+
+static void
+xtensa_fill_gregset (void *buf)
+{
+ elf_greg_t* rset = (elf_greg_t*)buf;
+ int ar0_regnum;
+ char *ptr;
+ int i;
+
+ /* Take care of AR registers. */
+
+ ar0_regnum = find_regno ("ar0");
+ ptr = (char*)&rset[R_A0];
+
+ for (i = ar0_regnum; i < ar0_regnum + XCHAL_NUM_AREGS; i++)
+ {
+ collect_register (i, ptr);
+ ptr += register_size(i);
+ }
+
+ /* Loop registers, if hardware has it. */
+
+#if XCHAL_HAVE_LOOP
+ collect_register_by_name ("lbeg", (char*)&rset[R_LBEG]);
+ collect_register_by_name ("lend", (char*)&rset[R_LEND]);
+ collect_register_by_name ("lcount", (char*)&rset[R_LCOUNT]);
+#endif
+
+ collect_register_by_name ("sar", (char*)&rset[R_SAR]);
+ collect_register_by_name ("pc", (char*)&rset[R_PC]);
+ collect_register_by_name ("ps", (char*)&rset[R_PS]);
+ collect_register_by_name ("windowbase", (char*)&rset[R_WB]);
+ collect_register_by_name ("windowstart", (char*)&rset[R_WS]);
+}
+
+static void
+xtensa_store_gregset (const void *buf)
+{
+ const elf_greg_t* rset = (const elf_greg_t*)buf;
+ int ar0_regnum;
+ char *ptr;
+ int i;
+
+ /* Take care of AR registers. */
+
+ ar0_regnum = find_regno ("ar0");
+ ptr = (char *)&rset[R_A0];
+
+ for (i = ar0_regnum; i < ar0_regnum + XCHAL_NUM_AREGS; i++)
+ {
+ supply_register (i, ptr);
+ ptr += register_size(i);
+ }
+
+ /* Loop registers, if hardware has it. */
+
+#if XCHAL_HAVE_LOOP
+ supply_register_by_name ("lbeg", (char*)&rset[R_LBEG]);
+ supply_register_by_name ("lend", (char*)&rset[R_LEND]);
+ supply_register_by_name ("lcount", (char*)&rset[R_LCOUNT]);
+#endif
+
+ supply_register_by_name ("sar", (char*)&rset[R_SAR]);
+ supply_register_by_name ("pc", (char*)&rset[R_PC]);
+ supply_register_by_name ("ps", (char*)&rset[R_PS]);
+ supply_register_by_name ("windowbase", (char*)&rset[R_WB]);
+ supply_register_by_name ("windowstart", (char*)&rset[R_WS]);
+}
+
+/* Xtensa GNU/Linux PTRACE interface includes extended register set. */
+
+static void
+xtensa_fill_xtregset (void *buf)
+{
+ const xtensa_regtable_t *ptr;
+
+ for (ptr = xtensa_regmap_table; ptr->name; ptr++)
+ {
+ collect_register_by_name (ptr->name,
+ (char*)buf + ptr->ptrace_offset);
+ }
+}
+
+static void
+xtensa_store_xtregset (const void *buf)
+{
+ const xtensa_regtable_t *ptr;
+
+ for (ptr = xtensa_regmap_table; ptr->name; ptr++)
+ {
+ supply_register_by_name (ptr->name,
+ (char*)buf + ptr->ptrace_offset);
+ }
+}
+
+struct regset_info target_regsets[] = {
+ { PTRACE_GETREGS, PTRACE_SETREGS, sizeof (elf_gregset_t),
+ GENERAL_REGS,
+ xtensa_fill_gregset, xtensa_store_gregset },
+ { PTRACE_GETXTREGS, PTRACE_SETXTREGS, XTENSA_ELF_XTREG_SIZE,
+ EXTENDED_REGS,
+ xtensa_fill_xtregset, xtensa_store_xtregset },
+ { 0, 0, -1, -1, NULL, NULL }
+};
+
+#if XCHAL_HAVE_BE
+#define XTENSA_BREAKPOINT {0xd2,0x0f}
+#else
+#define XTENSA_BREAKPOINT {0x2d,0xf0}
+#endif
+
+static const unsigned char xtensa_breakpoint[] = XTENSA_BREAKPOINT;
+#define xtensa_breakpoint_len 2
+
+static CORE_ADDR
+xtensa_get_pc (void)
+{
+ unsigned long pc;
+
+ collect_register_by_name ("pc", &pc);
+ return pc;
+}
+
+static void
+xtensa_set_pc (CORE_ADDR pc)
+{
+ unsigned long newpc = pc;
+ supply_register_by_name ("pc", &newpc);
+}
+
+static int
+xtensa_breakpoint_at (CORE_ADDR where)
+{
+ unsigned long insn;
+
+ (*the_target->read_memory) (where, (unsigned char *) &insn,
+ xtensa_breakpoint_len);
+ return memcmp((char *)&insn, xtensa_breakpoint, xtensa_breakpoint_len) == 0;
+}
+
+struct linux_target_ops the_low_target = {
+ 0,
+ 0,
+ 0,
+ 0,
+ xtensa_get_pc,
+ xtensa_set_pc,
+ xtensa_breakpoint,
+ xtensa_breakpoint_len,
+ NULL,
+ 0,
+ xtensa_breakpoint_at,
+};
--- /dev/null
+/* Table mapping between kernel xtregset and GDB register cache.
+ Copyright 2007, 2008 Free Software Foundation, Inc.
+
+ This file is part of GDB.
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+
+typedef struct {
+ int gdb_regnum;
+ int gdb_offset;
+ int ptrace_cp_offset;
+ int ptrace_offset;
+ int size;
+ int coproc;
+ int dbnum;
+ char* name
+;} xtensa_regtable_t;
+
+#define XTENSA_ELF_XTREG_SIZE 0
+
+const xtensa_regtable_t xtensa_regmap_table[] = {
+ /* gnum,gofs,cpofs,ofs,siz,cp, dbnum, name */
+ { 0 }
+};
+
projects / binutils-gdb.git / commitdiff