diff options
Diffstat (limited to 'gdb')
| -rw-r--r-- | gdb/gdbserver/ChangeLog | 7 | ||||
| -rw-r--r-- | gdb/gdbserver/Makefile.in | 5 | ||||
| -rw-r--r-- | gdb/gdbserver/configure.srv | 6 | ||||
| -rw-r--r-- | gdb/gdbserver/linux-tile-low.c | 142 |
4 files changed, 160 insertions, 0 deletions
diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog index f060255..966d61a 100644 --- a/gdb/gdbserver/ChangeLog +++ b/gdb/gdbserver/ChangeLog @@ -1,3 +1,10 @@ +2012-05-30 Jeff Kenton <jkenton@tilera.com> + + * Makefile.in (SFILES): Add linux-tile-low.c. + (linux-tile-low.o, reg-tilegx.o, reg-tilegx.c): New rules. + * configure.srv: Handle tilegx-*-linux*. + * linux-tile-low.c: New file. + 2012-05-28 Jan Kratochvil <jan.kratochvil@redhat.com> * linux-low.c (linux_qxfer_libraries_svr4): Return -1 if R_DEBUG is -1. diff --git a/gdb/gdbserver/Makefile.in b/gdb/gdbserver/Makefile.in index 50786d5..3c5c041 100644 --- a/gdb/gdbserver/Makefile.in +++ b/gdb/gdbserver/Makefile.in @@ -133,6 +133,7 @@ SFILES= $(srcdir)/gdbreplay.c $(srcdir)/inferiors.c $(srcdir)/dll.c \ $(srcdir)/linux-sh-low.c $(srcdir)/linux-sparc-low.c \ $(srcdir)/linux-x86-low.c \ $(srcdir)/linux-xtensa-low.c \ + $(srcdir)/linux-tile-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 \ @@ -549,6 +550,7 @@ linux-tic6x-low.o: linux-tic6x-low.c $(linux_low_h) $(server_h) linux-x86-low.o: linux-x86-low.c $(linux_low_h) $(server_h) \ $(gdb_proc_service_h) $(i386_low_h) $(agent_h) linux-xtensa-low.o: linux-xtensa-low.c xtensa-xtregs.c $(linux_low_h) $(server_h) +linux-tile-low.o: linux-tile-low.c $(linux_low_h) $(server_h) lynx-low.o: lynx-low.c $(server_h) $(target_h) $(lynx_low_h) lynx-ppc-low.o: lynx-ppc-low.c $(server_h) $(lynx_low_h) @@ -752,4 +754,7 @@ x32-avx-linux.c : $(srcdir)/../regformats/i386/x32-avx-linux.dat $(regdat_sh) 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 +reg-tilegx.o : reg-tilegx.c $(regdef_h) +reg-tilegx.c : $(srcdir)/../regformats/reg-tilegx.dat $(regdat_sh) + $(SHELL) $(regdat_sh) $(srcdir)/../regformats/reg-tilegx.dat reg-tilegx.c # This is the end of "Makefile.in". diff --git a/gdb/gdbserver/configure.srv b/gdb/gdbserver/configure.srv index e6ae157..d1e04a9 100644 --- a/gdb/gdbserver/configure.srv +++ b/gdb/gdbserver/configure.srv @@ -311,6 +311,12 @@ case "${target}" in srv_tgtobj="${srv_tgtobj} linux-ptrace.o" srv_linux_regsets=yes ;; + tilegx-*-linux*) srv_regobj=reg-tilegx.o + srv_tgtobj="linux-low.o linux-tile-low.o linux-osdata.o linux-procfs.o" + srv_tgtobj="${srv_tgtobj} linux-ptrace.o" + srv_linux_regsets=yes + srv_linux_thread_db=yes + ;; *) echo "Error: target not supported by gdbserver." exit 1 ;; diff --git a/gdb/gdbserver/linux-tile-low.c b/gdb/gdbserver/linux-tile-low.c new file mode 100644 index 0000000..e7c7d11 --- /dev/null +++ b/gdb/gdbserver/linux-tile-low.c @@ -0,0 +1,142 @@ +/* GNU/Linux/TILE-Gx specific low level interface, GDBserver. + + Copyright (C) 2012 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> + +/* Defined in auto-generated file reg-tile.c. */ +void init_registers_tile (void); + +#define tile_num_regs 65 + +static int tile_regmap[] = +{ + 0, 1, 2, 3, 4, 5, 6, 7, + 8, 9, 10, 11, 12, 13, 14, 15, + 16, 17, 18, 19, 20, 21, 22, 23, + 24, 25, 26, 27, 28, 29, 30, 31, + 32, 33, 34, 35, 36, 37, 38, 39, + 40, 41, 42, 43, 44, 45, 46, 47, + 48, 49, 50, 51, 52, 53, 54, 55, + -1, -1, -1, -1, -1, -1, -1, -1, + 56 +}; + +static int +tile_cannot_fetch_register (int regno) +{ + if (regno >= 0 && regno < 56) + return 0; + else if (regno == 64) + return 0; + else + return 1; +} + +static int +tile_cannot_store_register (int regno) +{ + if (regno >= 0 && regno < 56) + return 0; + else if (regno == 64) + return 0; + else + return 1; +} + +static CORE_ADDR +tile_get_pc (struct regcache *regcache) +{ + unsigned long pc; + + collect_register_by_name (regcache, "pc", &pc); + return pc; +} + +static void +tile_set_pc (struct regcache *regcache, CORE_ADDR pc) +{ + unsigned long newpc = pc; + + supply_register_by_name (regcache, "pc", &newpc); +} + +static uint64_t tile_breakpoint = 0x400b3cae70166000ULL; +#define tile_breakpoint_len 8 + +static int +tile_breakpoint_at (CORE_ADDR where) +{ + uint64_t insn; + + (*the_target->read_memory) (where, (unsigned char *) &insn, 8); + if (insn == tile_breakpoint) + return 1; + + /* If necessary, recognize more trap instructions here. GDB only uses the + one. */ + return 0; +} + +static void +tile_fill_gregset (struct regcache *regcache, void *buf) +{ + int i; + + for (i = 0; i < tile_num_regs; i++) + if (tile_regmap[i] != -1) + collect_register (regcache, i, ((unsigned int *) buf) + tile_regmap[i]); +} + +static void +tile_store_gregset (struct regcache *regcache, const void *buf) +{ + int i; + + for (i = 0; i < tile_num_regs; i++) + if (tile_regmap[i] != -1) + supply_register (regcache, i, ((unsigned long *) buf) + tile_regmap[i]); +} + +struct regset_info target_regsets[] = +{ + { PTRACE_GETREGS, PTRACE_SETREGS, 0, tile_num_regs * 4, + GENERAL_REGS, tile_fill_gregset, tile_store_gregset }, + { 0, 0, 0, -1, -1, NULL, NULL } +}; + +struct linux_target_ops the_low_target = +{ + init_registers_tile, + tile_num_regs, + tile_regmap, + NULL, + tile_cannot_fetch_register, + tile_cannot_store_register, + NULL, + tile_get_pc, + tile_set_pc, + (const unsigned char *) &tile_breakpoint, + tile_breakpoint_len, + NULL, + 0, + tile_breakpoint_at, +}; |