Messages in this thread Patch in this message |  | | From | Jan Kiszka <> | Subject | [PATCH v5 09/20] scripts/gdb: Add read_u16/32/64 helpers | Date | Tue, 29 Jan 2013 13:37:52 +0100 |
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Add helpers for reading integers from target memory buffers. Required when caching the memory access is more efficient than reading individual values via gdb.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> --- scripts/gdb/utils.py | 18 ++++++++++++++++++ 1 files changed, 18 insertions(+), 0 deletions(-)
diff --git a/scripts/gdb/utils.py b/scripts/gdb/utils.py index 1c7cb42..9b23052 100644 --- a/scripts/gdb/utils.py +++ b/scripts/gdb/utils.py @@ -94,3 +94,21 @@ def get_target_endianness(): else: raise gdb.GdgError("unknown endianness '%s'" % endian) return target_endianness + +def read_u16(buffer): + if get_target_endianness() == LITTLE_ENDIAN: + return ord(buffer[0]) + (ord(buffer[1]) << 8) + else: + return ord(buffer[1]) + (ord(buffer[0]) << 8) + +def read_u32(buffer): + if get_target_endianness() == LITTLE_ENDIAN: + return read_u16(buffer[0:2]) + (read_u16(buffer[2:4]) << 16) + else: + return read_u16(buffer[2:4]) + (read_u16(buffer[0:2]) << 16) + +def read_u64(buffer): + if get_target_endianness() == LITTLE_ENDIAN: + return read_u32(buffer[0:4]) + (read_u32(buffer[4:8]) << 32) + else: + return read_u32(buffer[4:8]) + (read_u32(buffer[0:4]) << 32) -- 1.7.3.4
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