* [PATCH] Add support for Tilera TILE-Gx processor (part 3/3: gdbserver)
@ 2012-05-11 16:20 Jeff Kenton
2012-05-21 14:29 ` Jeff Kenton
0 siblings, 1 reply; 9+ messages in thread
From: Jeff Kenton @ 2012-05-11 16:20 UTC (permalink / raw)
To: gdb-patches
[-- Attachment #1: Type: text/plain, Size: 482 bytes --]
This is a re-submission of the port of GDB to the Tilera TILE-Gx
processor, re-organized and modified in response to multiple suggestions
from several people.
This is part 3 of 3, containing GNU/Linux gdbserver support for the
TILE-Gx processor. Patch is attached. It contains:
gdb/gdbserver/
* Makefile.in: Add tilegx dependencies.
* configure.srv: Add tilegx dependencies.
* linux-tile-low.c: New file.
Comments please.
Thanks.
jeff kenton (jkenton@tilera.com)
[-- Attachment #2: patch_3 --]
[-- Type: text/plain, Size: 5743 bytes --]
diff -r -u -N /home/packages/gdb-7.4x/gdb/gdbserver/configure.srv ./gdb/gdbserver/configure.srv
--- /home/packages/gdb-7.4x/gdb/gdbserver/configure.srv 2012-03-13 11:00:37.000000000 -0400
+++ ./gdb/gdbserver/configure.srv 2012-05-08 10:38:23.790546000 -0400
@@ -311,6 +311,12 @@
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 -r -u -N /home/packages/gdb-7.4x/gdb/gdbserver/linux-tile-low.c ./gdb/gdbserver/linux-tile-low.c
--- /home/packages/gdb-7.4x/gdb/gdbserver/linux-tile-low.c 1969-12-31 19:00:00.000000000 -0500
+++ ./gdb/gdbserver/linux-tile-low.c 2012-05-08 10:38:23.804549000 -0400
@@ -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,
+};
diff -r -u -N /home/packages/gdb-7.4x/gdb/gdbserver/Makefile.in ./gdb/gdbserver/Makefile.in
--- /home/packages/gdb-7.4x/gdb/gdbserver/Makefile.in 2012-03-13 11:00:37.000000000 -0400
+++ ./gdb/gdbserver/Makefile.in 2012-05-08 10:38:23.776524000 -0400
@@ -120,6 +120,7 @@
$(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 \
@@ -479,6 +480,7 @@
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)
@@ -670,4 +672,7 @@
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) $(srcdir)/../regformats/reg-tilegx.dat reg-tilegx.c
# This is the end of "Makefile.in".
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH] Add support for Tilera TILE-Gx processor (part 3/3: gdbserver)
2012-05-11 16:20 [PATCH] Add support for Tilera TILE-Gx processor (part 3/3: gdbserver) Jeff Kenton
@ 2012-05-21 14:29 ` Jeff Kenton
2012-05-23 17:50 ` Pedro Alves
0 siblings, 1 reply; 9+ messages in thread
From: Jeff Kenton @ 2012-05-21 14:29 UTC (permalink / raw)
To: gdb-patches
[-- Attachment #1: Type: text/plain, Size: 243 bytes --]
On 05/11/2012 12:20 PM, Jeff Kenton wrote:
>
> This is part 3 of 3, containing GNU/Linux gdbserver support for the
> TILE-Gx processor.
Modified in accordance with Joel Brobecker's comments. Patch attached.
Comments please.
--jeff kenton
[-- Attachment #2: patch_3 --]
[-- Type: text/plain, Size: 5888 bytes --]
gdb/gdbserver/
* Makefile.in: Add tilegx dependencies.
* configure.srv: Add tilegx dependencies.
* linux-tile-low.c: New file.
diff -r -u -N /home/packages/gdb-7.4x/gdb/gdbserver/configure.srv ./gdb/gdbserver/configure.srv
--- /home/packages/gdb-7.4x/gdb/gdbserver/configure.srv 2012-03-13 11:00:37.000000000 -0400
+++ ./gdb/gdbserver/configure.srv 2012-05-18 14:00:31.444187000 -0400
@@ -311,6 +311,12 @@
srv_tgtobj="${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 -r -u -N /home/packages/gdb-7.4x/gdb/gdbserver/linux-tile-low.c ./gdb/gdbserver/linux-tile-low.c
--- /home/packages/gdb-7.4x/gdb/gdbserver/linux-tile-low.c 1969-12-31 19:00:00.000000000 -0500
+++ ./gdb/gdbserver/linux-tile-low.c 2012-05-18 14:00:31.466175000 -0400
@@ -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,
+};
diff -r -u -N /home/packages/gdb-7.4x/gdb/gdbserver/Makefile.in ./gdb/gdbserver/Makefile.in
--- /home/packages/gdb-7.4x/gdb/gdbserver/Makefile.in 2012-03-13 11:00:37.000000000 -0400
+++ ./gdb/gdbserver/Makefile.in 2012-05-18 14:00:31.424179000 -0400
@@ -120,6 +120,7 @@
$(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 \
@@ -479,6 +480,7 @@
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)
@@ -670,4 +672,7 @@
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".
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH] Add support for Tilera TILE-Gx processor (part 3/3: gdbserver)
2012-05-21 14:29 ` Jeff Kenton
@ 2012-05-23 17:50 ` Pedro Alves
2012-05-24 11:59 ` Jeff Kenton
2012-05-24 19:31 ` Jeff Kenton
0 siblings, 2 replies; 9+ messages in thread
From: Pedro Alves @ 2012-05-23 17:50 UTC (permalink / raw)
To: Jeff Kenton; +Cc: gdb-patches
On 05/21/2012 03:29 PM, Jeff Kenton wrote:
> * Makefile.in: Add tilegx dependencies.
> * configure.srv: Add tilegx dependencies.
> * linux-tile-low.c: New file.
This needs to be more specific. Something like:
* 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.
Otherwise looks fine, thanks.
Same comment about ps_get_thread_area though.
--
Pedro Alves
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH] Add support for Tilera TILE-Gx processor (part 3/3: gdbserver)
2012-05-23 17:50 ` Pedro Alves
@ 2012-05-24 11:59 ` Jeff Kenton
2012-05-24 12:05 ` Pedro Alves
2012-05-24 19:31 ` Jeff Kenton
1 sibling, 1 reply; 9+ messages in thread
From: Jeff Kenton @ 2012-05-24 11:59 UTC (permalink / raw)
To: Pedro Alves; +Cc: gdb-patches
On 05/23/2012 01:49 PM, Pedro Alves wrote:
> On 05/21/2012 03:29 PM, Jeff Kenton wrote:
>> * Makefile.in: Add tilegx dependencies.
>> * configure.srv: Add tilegx dependencies.
>> * linux-tile-low.c: New file.
> This needs to be more specific. Something like:
>
> * 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.
>
>
> Otherwise looks fine, thanks.
>
> Same comment about ps_get_thread_area though.
>
Pedro,
How is this different from your comment about ps_get_thread_area in your
response to part 2?
--jeff kenton
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH] Add support for Tilera TILE-Gx processor (part 3/3: gdbserver)
2012-05-24 11:59 ` Jeff Kenton
@ 2012-05-24 12:05 ` Pedro Alves
0 siblings, 0 replies; 9+ messages in thread
From: Pedro Alves @ 2012-05-24 12:05 UTC (permalink / raw)
To: Jeff Kenton; +Cc: gdb-patches
On 05/24/2012 12:59 PM, Jeff Kenton wrote:
> On 05/23/2012 01:49 PM, Pedro Alves wrote:
>> On 05/21/2012 03:29 PM, Jeff Kenton wrote:
>>> * Makefile.in: Add tilegx dependencies.
>>> * configure.srv: Add tilegx dependencies.
>>> * linux-tile-low.c: New file.
>> This needs to be more specific. Something like:
>>
>> * 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.
>>
>>
>> Otherwise looks fine, thanks.
>>
>> Same comment about ps_get_thread_area though.
>>
>
> Pedro,
>
> How is this different from your comment about ps_get_thread_area in your response to part 2?
Not sure what you mean. It's the same comment, but applied to gdbserver. If a ps_get_thread_area
function should be added to gdb/tilegx-linux-nat.c, then one should also be added to
gdbserver/linux-tile-low.c.
--
Pedro Alves
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH] Add support for Tilera TILE-Gx processor (part 3/3: gdbserver)
2012-05-23 17:50 ` Pedro Alves
2012-05-24 11:59 ` Jeff Kenton
@ 2012-05-24 19:31 ` Jeff Kenton
2012-05-25 18:18 ` Pedro Alves
1 sibling, 1 reply; 9+ messages in thread
From: Jeff Kenton @ 2012-05-24 19:31 UTC (permalink / raw)
To: Pedro Alves; +Cc: gdb-patches
[-- Attachment #1: Type: text/plain, Size: 166 bytes --]
On 05/23/2012 01:49 PM, Pedro Alves wrote:
> On 05/21/2012 03:29 PM, Jeff Kenton wrote:
- Comments applied.
- Patch attached.
Comments?
Thanks.
--jeff kenton
[-- Attachment #2: patch_3 --]
[-- Type: text/plain, Size: 6586 bytes --]
gdb/gdbserver/
* 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.
diff -r -u -N /home/packages/gdb-7.4x/gdb/gdbserver/configure.srv ./gdb/gdbserver/configure.srv
--- /home/packages/gdb-7.4x/gdb/gdbserver/configure.srv 2012-03-13 11:00:37.000000000 -0400
+++ ./gdb/gdbserver/configure.srv 2012-05-24 13:43:30.007292000 -0400
@@ -311,6 +311,12 @@
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 -r -u -N /home/packages/gdb-7.4x/gdb/gdbserver/linux-tile-low.c ./gdb/gdbserver/linux-tile-low.c
--- /home/packages/gdb-7.4x/gdb/gdbserver/linux-tile-low.c 1969-12-31 19:00:00.000000000 -0500
+++ ./gdb/gdbserver/linux-tile-low.c 2012-05-24 13:43:30.025286000 -0400
@@ -0,0 +1,164 @@
+
+
+/* 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>
+#include "gdb_proc_service.h"
+
+#ifndef PTRACE_GET_THREAD_AREA
+#define PTRACE_GET_THREAD_AREA 25
+#endif
+
+/* 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
+};
+
+/* Fetch the thread-local storage pointer for libthread_db. */
+
+ps_err_e
+ps_get_thread_area (const struct ps_prochandle *ph,
+ lwpid_t lwpid, int idx, void **base)
+{
+ if (ptrace (PTRACE_GET_THREAD_AREA, lwpid, NULL, base) != 0)
+ return PS_ERR;
+
+ /* IDX is the bias from the thread pointer to the beginning of the
+ thread descriptor. It has to be subtracted due to implementation
+ quirks in libthread_db. */
+ *base = (void *) ((char *)*base - idx);
+
+ return PS_OK;
+}
+
+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,
+};
diff -r -u -N /home/packages/gdb-7.4x/gdb/gdbserver/Makefile.in ./gdb/gdbserver/Makefile.in
--- /home/packages/gdb-7.4x/gdb/gdbserver/Makefile.in 2012-03-13 11:00:37.000000000 -0400
+++ ./gdb/gdbserver/Makefile.in 2012-05-24 13:43:29.988273000 -0400
@@ -120,6 +120,7 @@
$(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 \
@@ -479,6 +480,7 @@
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)
@@ -670,4 +672,7 @@
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".
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH] Add support for Tilera TILE-Gx processor (part 3/3: gdbserver)
2012-05-24 19:31 ` Jeff Kenton
@ 2012-05-25 18:18 ` Pedro Alves
2012-05-29 15:28 ` Jeff Kenton
0 siblings, 1 reply; 9+ messages in thread
From: Pedro Alves @ 2012-05-25 18:18 UTC (permalink / raw)
To: Jeff Kenton; +Cc: gdb-patches
On 05/24/2012 08:30 PM, Jeff Kenton wrote:
> diff -r -u -N /home/packages/gdb-7.4x/gdb/gdbserver/linux-tile-low.c ./gdb/gdbserver/linux-tile-low.c
> --- /home/packages/gdb-7.4x/gdb/gdbserver/linux-tile-low.c 1969-12-31 19:00:00.000000000 -0500
> +++ ./gdb/gdbserver/linux-tile-low.c 2012-05-24 13:43:30.025286000 -0400
> @@ -0,0 +1,164 @@
> +
> +
Two spurious empty lines here. Please remove them.
> +/* GNU/Linux/TILE-Gx specific low level interface, GDBserver.
> --- /home/packages/gdb-7.4x/gdb/gdbserver/linux-tile-low.c 1969-12-31 19:00:00.000000000 -0500
> +++ ./gdb/gdbserver/linux-tile-low.c 2012-05-24 13:43:30.025286000 -0400
> +#include "gdb_proc_service.h"
...
> +linux-tile-low.o: linux-tile-low.c $(linux_low_h) $(server_h)
This now needs to depend on $(gdb_proc_service_h) too.
Otherwise looks fine.
--
Pedro Alves
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH] Add support for Tilera TILE-Gx processor (part 3/3: gdbserver)
2012-05-25 18:18 ` Pedro Alves
@ 2012-05-29 15:28 ` Jeff Kenton
2012-05-30 20:06 ` Pedro Alves
0 siblings, 1 reply; 9+ messages in thread
From: Jeff Kenton @ 2012-05-29 15:28 UTC (permalink / raw)
To: Pedro Alves; +Cc: gdb-patches
[-- Attachment #1: Type: text/plain, Size: 959 bytes --]
On 05/25/2012 02:18 PM, Pedro Alves wrote:
> On 05/24/2012 08:30 PM, Jeff Kenton wrote:
>
>> diff -r -u -N /home/packages/gdb-7.4x/gdb/gdbserver/linux-tile-low.c ./gdb/gdbserver/linux-tile-low.c
>> --- /home/packages/gdb-7.4x/gdb/gdbserver/linux-tile-low.c 1969-12-31 19:00:00.000000000 -0500
>> +++ ./gdb/gdbserver/linux-tile-low.c 2012-05-24 13:43:30.025286000 -0400
>> @@ -0,0 +1,164 @@
>> +
>> +
>
> Two spurious empty lines here. Please remove them.
Done.
>
>> +/* GNU/Linux/TILE-Gx specific low level interface, GDBserver.
>
>
>> --- /home/packages/gdb-7.4x/gdb/gdbserver/linux-tile-low.c 1969-12-31 19:00:00.000000000 -0500
>> +++ ./gdb/gdbserver/linux-tile-low.c 2012-05-24 13:43:30.025286000 -0400
>> +#include "gdb_proc_service.h"
> ...
>> +linux-tile-low.o: linux-tile-low.c $(linux_low_h) $(server_h)
> This now needs to depend on $(gdb_proc_service_h) too.
Done.
>
> Otherwise looks fine.
>
Updated patch attached.
Thanks.
--jeff kenton
[-- Attachment #2: patch_3 --]
[-- Type: text/plain, Size: 6538 bytes --]
gdb/gdbserver/
* Makefile.in: Add tilegx dependencies.
* configure.srv: Add tilegx dependencies.
* linux-tile-low.c: New file.
diff -r -u -N /home/packages/gdb-7.4x/gdb/gdbserver/configure.srv ./gdb/gdbserver/configure.srv
--- /home/packages/gdb-7.4x/gdb/gdbserver/configure.srv 2012-03-13 11:00:37.000000000 -0400
+++ ./gdb/gdbserver/configure.srv 2012-05-29 09:35:10.102123000 -0400
@@ -311,6 +311,12 @@
srv_tgtobj="${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 -r -u -N /home/packages/gdb-7.4x/gdb/gdbserver/linux-tile-low.c ./gdb/gdbserver/linux-tile-low.c
--- /home/packages/gdb-7.4x/gdb/gdbserver/linux-tile-low.c 1969-12-31 19:00:00.000000000 -0500
+++ ./gdb/gdbserver/linux-tile-low.c 2012-05-29 09:35:10.138123000 -0400
@@ -0,0 +1,162 @@
+/* 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>
+#include "gdb_proc_service.h"
+
+#ifndef PTRACE_GET_THREAD_AREA
+#define PTRACE_GET_THREAD_AREA 25
+#endif
+
+/* 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
+};
+
+/* Fetch the thread-local storage pointer for libthread_db. */
+
+ps_err_e
+ps_get_thread_area (const struct ps_prochandle *ph,
+ lwpid_t lwpid, int idx, void **base)
+{
+ if (ptrace (PTRACE_GET_THREAD_AREA, lwpid, NULL, base) != 0)
+ return PS_ERR;
+
+ /* IDX is the bias from the thread pointer to the beginning of the
+ thread descriptor. It has to be subtracted due to implementation
+ quirks in libthread_db. */
+ *base = (void *) ((char *)*base - idx);
+
+ return PS_OK;
+}
+
+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,
+};
diff -r -u -N /home/packages/gdb-7.4x/gdb/gdbserver/Makefile.in ./gdb/gdbserver/Makefile.in
--- /home/packages/gdb-7.4x/gdb/gdbserver/Makefile.in 2012-03-13 11:00:37.000000000 -0400
+++ ./gdb/gdbserver/Makefile.in 2012-05-29 09:35:10.083121000 -0400
@@ -120,6 +120,7 @@
$(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 \
@@ -479,6 +480,8 @@
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) \
+ $(gdb_proc_service_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)
@@ -670,4 +673,7 @@
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".
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH] Add support for Tilera TILE-Gx processor (part 3/3: gdbserver)
2012-05-29 15:28 ` Jeff Kenton
@ 2012-05-30 20:06 ` Pedro Alves
0 siblings, 0 replies; 9+ messages in thread
From: Pedro Alves @ 2012-05-30 20:06 UTC (permalink / raw)
To: Jeff Kenton; +Cc: gdb-patches
On 05/29/2012 04:28 PM, Jeff Kenton wrote:
> Updated patch attached.
This lost the ChangeLog changes of the previous iteration, but I think the patch
is the up-to-date one. I've also removed the ps_get_thread_area bit from this.
Here's what I checked in.
I think that's it. I think you already had a NEWS patch at some point.
Could you resend it in a new thread, please?
Thanks!
gdb/gdbserver/
* 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.
---
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,
+};
^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2012-05-30 20:06 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-05-11 16:20 [PATCH] Add support for Tilera TILE-Gx processor (part 3/3: gdbserver) Jeff Kenton
2012-05-21 14:29 ` Jeff Kenton
2012-05-23 17:50 ` Pedro Alves
2012-05-24 11:59 ` Jeff Kenton
2012-05-24 12:05 ` Pedro Alves
2012-05-24 19:31 ` Jeff Kenton
2012-05-25 18:18 ` Pedro Alves
2012-05-29 15:28 ` Jeff Kenton
2012-05-30 20:06 ` Pedro Alves
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox