| /* Data structures and functions associated with agent expressions in GDB. |
| Copyright (C) 2009-2013 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/>. */ |
| |
| #if !defined (AX_H) |
| #define AX_H 1 |
| |
| #include "server.h" |
| #include "regcache.h" |
| |
| #ifdef IN_PROCESS_AGENT |
| extern int debug_agent; |
| #define debug_threads debug_agent |
| #endif |
| |
| struct traceframe; |
| |
| /* Enumeration of the different kinds of things that can happen during |
| agent expression evaluation. */ |
| |
| enum eval_result_type |
| { |
| expr_eval_no_error, |
| expr_eval_empty_expression, |
| expr_eval_empty_stack, |
| expr_eval_stack_overflow, |
| expr_eval_stack_underflow, |
| expr_eval_unhandled_opcode, |
| expr_eval_unrecognized_opcode, |
| expr_eval_divide_by_zero, |
| expr_eval_invalid_goto |
| }; |
| |
| struct agent_expr |
| { |
| int length; |
| |
| unsigned char *bytes; |
| }; |
| |
| #ifndef IN_PROCESS_AGENT |
| |
| /* The packet form of an agent expression consists of an 'X', number |
| of bytes in expression, a comma, and then the bytes. */ |
| struct agent_expr *gdb_parse_agent_expr (char **actparm); |
| |
| /* Convert the bytes of an agent expression back into hex digits, so |
| they can be printed or uploaded. This allocates the buffer, |
| callers should free when they are done with it. */ |
| char *gdb_unparse_agent_expr (struct agent_expr *aexpr); |
| void emit_prologue (void); |
| void emit_epilogue (void); |
| enum eval_result_type compile_bytecodes (struct agent_expr *aexpr); |
| #endif |
| |
| /* The context when evaluating agent expression. */ |
| |
| struct eval_agent_expr_context |
| { |
| /* The registers when evaluating agent expression. */ |
| struct regcache *regcache; |
| /* The traceframe, if any, when evaluating agent expression. */ |
| struct traceframe *tframe; |
| /* The tracepoint, if any, when evaluating agent expression. */ |
| struct tracepoint *tpoint; |
| }; |
| |
| enum eval_result_type |
| gdb_eval_agent_expr (struct eval_agent_expr_context *ctx, |
| struct agent_expr *aexpr, |
| ULONGEST *rslt); |
| #endif /* AX_H */ |