First Binutils hack: missing initializer & excess elements

[Ahmed101Mohammed]

In the First Binutils hack task, I need to write the following code in the path: submodules/binutils-gdb/opcodes/i386-tbl.h

  { "myinc", 1, 0xfe, 0x0, 1,
    { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } },
    { 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0 },
    { { { 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
	  0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0,
	  1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0 } } } },

Then I should rebuild the binutils with this command:

./build-buildroot -- host-binutils-rebuild

But I get in the logs the following warnings that later will affect the rest of the task:

make[5]: Entering directory '/root/lkmc/out.docker/buildroot/build/default/x86_64/build/host-binutils-custom/opcodes'
  CC       i386-opc.lo
In file included from i386-opc.c:24:
i386-tbl.h:1525:9: warning: missing initializer for field ‘cpuwbnoinvd’ of ‘struct <anonymous>’ [-Wmissing-field-initializers]
 1525 |         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } },
      |         ^
In file included from i386-opc.c:23:
i386-opc.h:357:20: note: ‘cpuwbnoinvd’ declared here
  357 |       unsigned int cpuwbnoinvd:1;
      |                    ^~~~~~~~~~~
In file included from i386-opc.c:24:
i386-tbl.h:1529:13: warning: excess elements in struct initializer
 1529 |       0, 0, 0, 0, 0, 0 },
      |             ^
i386-tbl.h:1529:13: note: (near initialization for ‘i386_optab[95].opcode_modifier’)
i386-tbl.h:1529:16: warning: excess elements in struct initializer
 1529 |       0, 0, 0, 0, 0, 0 },
      |                ^
i386-tbl.h:1529:16: note: (near initialization for ‘i386_optab[95].opcode_modifier’)
i386-tbl.h:1529:19: warning: excess elements in struct initializer
 1529 |       0, 0, 0, 0, 0, 0 },
      |                   ^
i386-tbl.h:1529:19: note: (near initialization for ‘i386_optab[95].opcode_modifier’)
i386-tbl.h:1529:22: warning: excess elements in struct initializer
 1529 |       0, 0, 0, 0, 0, 0 },
      |                      ^
i386-tbl.h:1529:22: note: (near initialization for ‘i386_optab[95].opcode_modifier’)
i386-tbl.h:1532:13: warning: excess elements in struct initializer
 1532 |    1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0 } } } },
      |             ^
i386-tbl.h:1532:13: note: (near initialization for ‘i386_optab[95].operand_types[0].bitfield’)
i386-tbl.h:1532:16: warning: excess elements in struct initializer
 1532 |    1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0 } } } },
      |                ^
i386-tbl.h:1532:16: note: (near initialization for ‘i386_optab[95].operand_types[0].bitfield’)
i386-tbl.h:1532:19: warning: excess elements in struct initializer
 1532 |    1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0 } } } },
      |                   ^
i386-tbl.h:1532:19: note: (near initialization for ‘i386_optab[95].operand_types[0].bitfield’)
i386-tbl.h:1532:22: warning: excess elements in struct initializer
 1532 |    1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0 } } } },
      |                      ^
i386-tbl.h:1532:22: note: (near initialization for ‘i386_optab[95].operand_types[0].bitfield’)
i386-tbl.h:1532:25: warning: excess elements in struct initializer
 1532 |    1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0 } } } },
      |                         ^
i386-tbl.h:1532:25: note: (near initialization for ‘i386_optab[95].operand_types[0].bitfield’)
i386-tbl.h:1532:28: warning: excess elements in struct initializer
 1532 |    1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0 } } } },
      |                            ^
i386-tbl.h:1532:28: note: (near initialization for ‘i386_optab[95].operand_types[0].bitfield’)
i386-tbl.h:1532:31: warning: excess elements in struct initializer
 1532 |    1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0 } } } },
      |                               ^
i386-tbl.h:1532:31: note: (near initialization for ‘i386_optab[95].operand_types[0].bitfield’)
i386-tbl.h:1532:34: warning: excess elements in struct initializer
 1532 |    1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0 } } } },
      |                                  ^
i386-tbl.h:1532:34: note: (near initialization for ‘i386_optab[95].operand_types[0].bitfield’)
  CCLD     libopcodes.la
libtooldir=`/bin/bash ./libtool --config | sed -n -e 's/^objdir=//p'`; \
if [ -f $libtooldir/libopcodes.a ]; then \
  cp $libtooldir/libopcodes.a libopcodes.tmp; \
  /usr/bin/ranlib libopcodes.tmp; \
  /bin/bash ./../move-if-change libopcodes.tmp libopcodes.a; \
else true; fi
touch stamp-lib

I tried to find the problem even I don't know how to deal with assembly to help this issue to solve faster, and I find the following:
When I look to other commands than myinc I find that they have a lower number of bits than mine:

{ "inc", 1, 0xfe, 0x0, 1,
    { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
        0, 0, 0, 0, 0 } },
    { 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0 },
    { { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1,
          0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0,
          0, 0, 0 } } } },
  { "myinc", 1, 0xfe, 0x0, 1,
    { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } },
    { 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
      0, 0, 0, 0, 0, 0 },
    { { { 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
          0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0,
          1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0 } } } },

But when I look to the task documentation I find that the parts of other commands that appear in the git diff is seems tell me that they equal to the myinc bits number:

diff --git a/opcodes/i386-tbl.h b/opcodes/i386-tbl.h
index af583ce578..3cc341f303 100644
--- a/opcodes/i386-tbl.h
+++ b/opcodes/i386-tbl.h
@@ -1502,6 +1502,19 @@ const insn_template i386_optab[] =
     { { { 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	  0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0,
 	  1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0 } } } },
+  { "myinc", 1, 0xfe, 0x0, 1,
+    { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+        0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } },
+    { 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+      0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0,
+      0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+      0, 0, 0, 0, 0, 0 },
+    { { { 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	  0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0,
+	  1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0 } } } },
   { "sub", 2, 0x28, None, 1,
     { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
         0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,

You can note the lower part of the myinc command in the task documentation is equal to the previous instruction, but in my local machine their is a difference, and I don't know why? and I don't know how can I create a version for myinc suitable with the size of bits that allowed for me.