| /* Copyright (C) 2007-2012 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 "win32-low.h" |
| |
| #ifndef CONTEXT_FLOATING_POINT |
| #define CONTEXT_FLOATING_POINT 0 |
| #endif |
| |
| /* Defined in auto-generated file reg-arm.c. */ |
| void init_registers_arm (void); |
| |
| |
| static void |
| arm_get_thread_context (win32_thread_info *th, DEBUG_EVENT* current_event) |
| { |
| th->context.ContextFlags = \ |
| CONTEXT_FULL | \ |
| CONTEXT_FLOATING_POINT; |
| |
| GetThreadContext (th->h, &th->context); |
| } |
| |
| static void |
| arm_set_thread_context (win32_thread_info *th, DEBUG_EVENT* current_event) |
| { |
| SetThreadContext (th->h, &th->context); |
| } |
| |
| #define context_offset(x) ((int)&(((CONTEXT *)NULL)->x)) |
| static const int mappings[] = { |
| context_offset (R0), |
| context_offset (R1), |
| context_offset (R2), |
| context_offset (R3), |
| context_offset (R4), |
| context_offset (R5), |
| context_offset (R6), |
| context_offset (R7), |
| context_offset (R8), |
| context_offset (R9), |
| context_offset (R10), |
| context_offset (R11), |
| context_offset (R12), |
| context_offset (Sp), |
| context_offset (Lr), |
| context_offset (Pc), |
| -1, /* f0 */ |
| -1, /* f1 */ |
| -1, /* f2 */ |
| -1, /* f3 */ |
| -1, /* f4 */ |
| -1, /* f5 */ |
| -1, /* f6 */ |
| -1, /* f7 */ |
| -1, /* fps */ |
| context_offset (Psr), |
| }; |
| #undef context_offset |
| |
| /* Return a pointer into a CONTEXT field indexed by gdb register number. |
| Return a pointer to an dummy register holding zero if there is no |
| corresponding CONTEXT field for the given register number. */ |
| static char * |
| regptr (CONTEXT* c, int r) |
| { |
| if (mappings[r] < 0) |
| { |
| static ULONG zero; |
| /* Always force value to zero, in case the user tried to write |
| to this register before. */ |
| zero = 0; |
| return (char *) &zero; |
| } |
| else |
| return (char *) c + mappings[r]; |
| } |
| |
| /* Fetch register from gdbserver regcache data. */ |
| static void |
| arm_fetch_inferior_register (struct regcache *regcache, |
| win32_thread_info *th, int r) |
| { |
| char *context_offset = regptr (&th->context, r); |
| supply_register (regcache, r, context_offset); |
| } |
| |
| /* Store a new register value into the thread context of TH. */ |
| static void |
| arm_store_inferior_register (struct regcache *regcache, |
| win32_thread_info *th, int r) |
| { |
| collect_register (regcache, r, regptr (&th->context, r)); |
| } |
| |
| /* Correct in either endianness. We do not support Thumb yet. */ |
| static const unsigned long arm_wince_breakpoint = 0xe6000010; |
| #define arm_wince_breakpoint_len 4 |
| |
| struct win32_target_ops the_low_target = { |
| init_registers_arm, |
| sizeof (mappings) / sizeof (mappings[0]), |
| NULL, /* initial_stuff */ |
| arm_get_thread_context, |
| arm_set_thread_context, |
| NULL, /* thread_added */ |
| arm_fetch_inferior_register, |
| arm_store_inferior_register, |
| NULL, /* single_step */ |
| (const unsigned char *) &arm_wince_breakpoint, |
| arm_wince_breakpoint_len, |
| /* Watchpoint related functions. See target.h for comments. */ |
| NULL, /* insert_point */ |
| NULL, /* remove_point */ |
| NULL, /* stopped_by_watchpoint */ |
| NULL /* stopped_data_address */ |
| }; |