auto import from //depot/cupcake/@135843

1 files changed, 139 insertions, 0 deletions

diff --git a/trace_common.h b/trace_common.h
new file mode 100644
index 0000000..3c4440d
--- /dev/null
+++ b/trace_common.h
@@ -0,0 +1,139 @@
+/* Copyright (C) 2006-2007 The Android Open Source Project
+**
+** This software is licensed under the terms of the GNU General Public
+** License version 2, as published by the Free Software Foundation, and
+** may be copied, distributed, and modified under those terms.
+**
+** 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.
+*/
+
+#ifndef TRACE_COMMON_H
+#define TRACE_COMMON_H
+
+#include <inttypes.h>
+
+// This should be the same as OPC_BUF_SIZE
+#define kMaxInsnPerBB 512
+
+#define kMaxNumBasicBlocks 1024
+
+#define kMaxNumAddrs 1024
+
+#define kInsnBufferSize 1024
+
+#define kCompressedSize 8192
+
+#define kMethodEnter		0
+#define kMethodExit		1
+#define kMethodException	2
+
+// The trace identifier string must be less than 16 characters.
+#define TRACE_IDENT "qemu_trace_file"
+#define TRACE_VERSION 1
+
+typedef struct TraceHeader {
+    char	ident[16];
+    int		version;
+    uint32_t	start_sec;
+    uint32_t	start_usec;
+    uint32_t	pdate;
+    uint32_t	ptime;
+    uint32_t	num_used_pids;		// number of distinct process ids used
+    int		first_unused_pid;	// -1 if all 32,768 pids are used (unlikely)
+    uint8_t	padding[4];		// next field is 8-byte aligned
+    uint64_t	num_static_bb;
+    uint64_t	num_static_insn;
+    uint64_t	num_dynamic_bb;
+    uint64_t	num_dynamic_insn;
+    uint64_t	elapsed_usecs;
+} TraceHeader;
+
+typedef struct BBRec {
+    uint64_t	start_time;	// time of first occurrence
+    uint64_t	bb_num;		// basic block number
+    uint32_t	repeat;		// repeat count (= 0 if just one occurrence)
+    uint64_t	time_diff;	// diff from previous time (if repeat > 0)
+} BBRec;
+
+// Define a trace record for addresses that miss in the cache
+typedef struct AddrRec {
+    uint64_t	time;
+    uint32_t	addr;
+} AddrRec;
+
+// Define a trace record for the start time of each instruction
+typedef struct InsnRec {
+    uint64_t	time_diff;	// time difference from last instruction
+    uint32_t	repeat;		// repeat count
+} InsnRec;
+
+// Define record types for process id changes.
+#define kPidEndOfFile		0
+#define kPidFork		1
+#define kPidClone		2
+#define kPidSwitch		3
+#define kPidExec		4
+#define kPidMmap		5
+#define kPidExit		6
+#define kPidKthreadName		7
+#define kPidSymbolAdd		8
+#define kPidSymbolRemove	9
+#define kPidMunmap		10
+#define kPidNoAction		11
+#define kPidName		12
+
+#define bswap16(x) ((((x) & 0xff) << 8) | (((x) >> 8) & 0xff))
+
+#define bswap32(x) ((((x) & 0xff) << 24) | (((x) & 0xff00) << 8) \
+        | (((x) >> 8) & 0xff00) | (((x) >> 24) & 0xff))
+
+#define bswap64(x) (((x) << 56) | (((x) & 0xff00) << 40) \
+        | (((x) & 0xff0000) << 24) | (((x) & 0xff000000ull) << 8) \
+        | (((x) >> 8) & 0xff000000ull) | (((x) >> 24) & 0xff0000) \
+        | (((x) >> 40) & 0xff00) | ((x) >> 56))
+
+#if BYTE_ORDER == LITTLE_ENDIAN
+#define hostToLE16(x)	(x)
+#define hostToLE32(x)	(x)
+#define hostToLE64(x)	(x)
+#define LE16ToHost(x)	(x)
+#define LE32ToHost(x)	(x)
+#define LE64ToHost(x)	(x)
+#define convert16(x)
+#define convert32(x)
+#define convert64(x)
+#else
+#define hostToLE16(x)	bswap16(x)
+#define hostToLE32(x)	bswap32(x)
+#define hostToLE64(x)	bswap64(x)
+#define LE16ToHost(x)	bswap16(x)
+#define LE32ToHost(x)	bswap32(x)
+#define LE64ToHost(x)	bswap64(x)
+#define convert16(x) (x = bswap16(x))
+#define convert32(x) (x = bswap32(x))
+#define convert64(x) (x = bswap64(x))
+#endif
+
+/* XXX: we wrap 16-bit thumb instructions into 32-bit undefined ARM instructions
+ *      for simplicity reasons. See section 3.13.1 section of the ARM ARM for details
+ *      on the undefined instruction space we're using
+ */
+static __inline__ int   insn_is_thumb(uint32_t   insn)
+{
+    return ((insn & 0xfff000f0) == 0xf7f000f0);
+}
+
+static __inline__ uint32_t  insn_wrap_thumb(uint32_t  insn)
+{
+    return 0xf7f000f0 | ((insn & 0xfff0) << 4) | (insn & 0x000f);
+}
+
+static __inline__ uint32_t  insn_unwrap_thumb(uint32_t  insn)
+{
+    return ((insn >> 4) & 0xfff0) | (insn & 0x000f);
+}
+
+#endif /* TRACE_COMMON_H */