Parse the target endianness from the output of "show endian" and cache
the result to return it via the new helper get_target_endiannes. We will
need it for reading integers from buffers that contain target memory.

Signed-off-by: Jan Kiszka <jan.kis...@siemens.com>
---
 scripts/gdb/utils.py |   17 +++++++++++++++++
 1 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/scripts/gdb/utils.py b/scripts/gdb/utils.py
index 74682c3..a4e6df2 100644
--- a/scripts/gdb/utils.py
+++ b/scripts/gdb/utils.py
@@ -53,3 +53,20 @@ class ContainerOf(gdb.Function):
                                    elementname.string())
 
 ContainerOf()
+
+
+BIG_ENDIAN = 0
+LITTLE_ENDIAN = 1
+target_endianness = None
+
+def get_target_endianness():
+       global target_endianness
+       if target_endianness == None:
+               endian = gdb.execute("show endian", False, True)
+               if endian.find("little endian") >= 0:
+                       target_endianness = LITTLE_ENDIAN
+               elif endian.find("big endian") >= 0:
+                       target_endianness = BIG_ENDIAN
+               else:
+                       raise gdb.GdgError("unknown endianness '%s'" % endian)
+       return target_endianness
-- 
1.7.3.4

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