diff options
Diffstat (limited to 'gdb/common/btrace-common.h')
| -rw-r--r-- | gdb/common/btrace-common.h | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/gdb/common/btrace-common.h b/gdb/common/btrace-common.h index 1d389af..25617bb 100644 --- a/gdb/common/btrace-common.h +++ b/gdb/common/btrace-common.h @@ -42,7 +42,9 @@ asynchronous, e.g. interrupts. */ struct btrace_block { - /* The address of the first byte of the first instruction in the block. */ + /* The address of the first byte of the first instruction in the block. + The address may be zero if we do not know the beginning of this block, + such as for the first block in a delta trace. */ CORE_ADDR begin; /* The address of the first byte of the last instruction in the block. */ @@ -67,7 +69,28 @@ enum btrace_read_type BTRACE_READ_ALL, /* Send all available trace, if it changed. */ - BTRACE_READ_NEW + BTRACE_READ_NEW, + + /* Send the trace since the last request. This will fail if the trace + buffer overflowed. */ + BTRACE_READ_DELTA +}; + +/* Enumeration of btrace errors. */ + +enum btrace_error +{ + /* No error. Everything is OK. */ + BTRACE_ERR_NONE, + + /* An unknown error. */ + BTRACE_ERR_UNKNOWN, + + /* Branch tracing is not supported on this system. */ + BTRACE_ERR_NOT_SUPPORTED, + + /* The branch trace buffer overflowed; no delta read possible. */ + BTRACE_ERR_OVERFLOW }; #endif /* BTRACE_COMMON_H */ |