Permanently Change gef/pwndbg disassembly flavor from intel to att syntax

gef_att.patch

diff --git a/gef.py b/gef.py
index 13e26eb..2f189eb 100644
--- a/gef.py
+++ b/gef.py
@@ -1160,6 +1160,7 @@ def capstone_disassemble(location, nb_insn, **kwargs):
     capstone    = sys.modules["capstone"]
     arch, mode  = get_capstone_arch(arch=kwargs.get("arch", None), mode=kwargs.get("mode", None), endian=kwargs.get("endian", None))
     cs          = capstone.Cs(arch, mode)
+    cs.syntax   = capstone.CS_OPT_SYNTAX_ATT
     cs.detail   = True
 
     page_start  = align_address_to_page(location)
@@ -8395,13 +8396,6 @@ if __name__  == "__main__":
         # pretty print
         gdb.execute("set print pretty on")
 
-        try:
-            # this will raise a gdb.error unless we're on x86
-            gdb.execute("set disassembly-flavor intel")
-        except gdb.error:
-            # we can safely ignore this
-            pass
-
         # SIGALRM will simply display a message, but gdb won't forward the signal to the process
         gdb.execute("handle SIGALRM print nopass")
 

pwndbg_att.patch

diff --git a/pwndbg/__init__.py b/pwndbg/__init__.py
index b6d5dac..bf51f8b 100755
--- a/pwndbg/__init__.py
+++ b/pwndbg/__init__.py
@@ -148,12 +148,6 @@ handle SIGSEGV stop   print nopass
 for line in pre_commands.strip().splitlines():
     gdb.execute(line)
 
-# This may throw an exception, see pwndbg/pwndbg#27
-try:
-    gdb.execute("set disassembly-flavor intel")
-except gdb.error:
-    pass
-
 # handle resize event to align width and completion
 signal.signal(signal.SIGWINCH, lambda signum, frame: gdb.execute("set width %i" % pwndbg.ui.get_window_size()[1]))
 
diff --git a/pwndbg/disasm/__init__.py b/pwndbg/disasm/__init__.py
index 42d4fe9..5d3cad3 100644
--- a/pwndbg/disasm/__init__.py
+++ b/pwndbg/disasm/__init__.py
@@ -76,6 +76,7 @@ def get_disassembler_cached(arch, ptrsize, endian, extra=None):
     mode |= CapstoneEndian[endian]
 
     cs = Cs(arch, mode)
+    cs.syntax = CS_OPT_SYNTAX_ATT
     cs.detail = True
     return cs