mirror of
https://git.rtems.org/rtems-tools/
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122 lines
3.4 KiB
C
122 lines
3.4 KiB
C
/*
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* QEMU System Emulator
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*
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* Copyright (C) 2009-2011, AdaCore
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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/*
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* QEMU trace file format.
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* It requires proper definition for uintXX_t where XX is 8, 16, 32 and 64
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* and target_ulong (32 or 64 bits).
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*/
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#ifndef QEMU_TRACE_H
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#define QEMU_TRACE_H
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/* File header definition. */
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struct trace_header {
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char magic[12];
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#define QEMU_TRACE_MAGIC "#QEMU-Traces"
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uint8_t version;
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#define QEMU_TRACE_VERSION 1
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/* File kind. */
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uint8_t kind;
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#define QEMU_TRACE_KIND_RAW 0
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#define QEMU_TRACE_KIND_HISTORY 1
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#define QEMU_TRACE_KIND_INFO 2
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#define QEMU_TRACE_KIND_DECISION_MAP 3
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#define QEMU_TRACE_KIND_CONSOLIDATED 248
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/* Sizeof (target_pc). Indicates struct trace_entry length. */
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uint8_t sizeof_target_pc;
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/* True if host was big endian. All the trace data used the host
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endianness. */
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uint8_t big_endian;
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/* Target machine (use ELF number) - always in big endian. */
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uint8_t machine[2];
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uint16_t _pad;
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};
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/* Header is followed by trace entries. */
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struct trace_entry {
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/* FIXME: import target_ulong */
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/* target_ulong pc; */
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uint32_t pc;
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uint16_t size;
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uint8_t op;
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};
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struct trace_entry32 {
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uint32_t pc;
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uint16_t size;
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uint8_t op;
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uint8_t _pad[1];
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};
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struct trace_entry64 {
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uint64_t pc;
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uint16_t size;
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uint8_t op;
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uint8_t _pad[5];
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};
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/*
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* Trace operations for RAW and HISTORY
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*/
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/* _BLOCK means pc .. pc+size-1 was executed. */
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#define TRACE_OP_BLOCK 0x10 /* Block fully executed. */
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#define TRACE_OP_FAULT 0x20 /* Fault at pc. */
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#define TRACE_OP_BR0 0x01 /* Branch 0 taken at pc. */
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#define TRACE_OP_BR1 0x02
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#define TRACE_OP_SPECIAL 0x80 /* Special info in trace file. */
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/* Special operations (in size). */
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#define TRACE_SPECIAL_LOADADDR 0x1 /* Module loaded at PC. */
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/* Only used internally in cpu-exec.c. */
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#define TRACE_OP_HIST_SET 0x100 /* Set in the map file. */
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#define TRACE_OP_HIST_CACHE 0x200 /* Has already been searched. */
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/*
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* Decision map operations
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*/
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/* Trace conditional jump instruction at address */
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#define TRACE_OP_TRACE_CONDITIONAL 1
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extern struct trace_entry *trace_current;
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extern int tracefile_enabled;
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void trace_init(const char *optarg);
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void trace_cleanup(void);
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void trace_push_entry(void);
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void trace_special(uint16_t subop, uint32_t data);
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#endif /* QEMU_TRACE_H */
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