Fixed bug when the GDB is debuggin an architecture arm-eabi (disassembly-flavor). (#889)

* Fixed bug when the GDB is debuggin an architecture arm-eabi.

* Removed hidden characters in the code.

pwndbg/commands/context.py

@@ -472,7 +472,14 @@ Unicorn emulation of code near the current instruction
 code_lines = pwndbg.config.Parameter('context-code-lines', 10, 'number of additional lines to print in the code context')
 
 def context_disasm(target=sys.stdout, with_banner=True, width=None):
+    try:
         flavor = gdb.execute('show disassembly-flavor', to_string=True).lower().split('"')[1]
+    except gdb.error as e:
+        if str(e).find("disassembly-flavor") > -1:
+            flavor = 'intel'
+        else:
+            raise
+
     syntax = pwndbg.disasm.CapstoneSyntax[flavor]
 
     # Get the Capstone object to set disassembly syntax

pwndbg/disasm/__init__.py

@@ -75,7 +75,13 @@ def get_disassembler_cached(arch, ptrsize, endian, extra=None):
 
     mode |= CapstoneEndian[endian]
 
+    try:
         flavor = gdb.execute('show disassembly-flavor', to_string=True).lower().split('"')[1]
+    except gdb.error as e:
+        if str(e).find("disassembly-flavor") > -1:
+            flavor = 'intel'
+        else:
+            raise
 
     cs = Cs(arch, mode)
     cs.syntax = CapstoneSyntax[flavor]