"warning" compilando simcpu per linux

[asghan]

Salve

avrei la neccessita di compilare simcpu per linux

ma mi restituisce diversi messaggi di warning

gcc -o include include.c

$ gcc -o assembler assembler.c
In file included from assembler.c:25:0:
simcpu.h:60:13: warning: 'packed' attribute ignored for field of type 'byte' [-Wattributes]
simcpu.h:72:19: warning: 'packed' attribute ignored for field of type 'struct TAG_registers' [-Wattributes]                                    
simcpu.h:73:19: warning: 'packed' attribute ignored for field of type 'byte' [-Wattributes]                                                    
simcpu.h:74:16: warning: 'packed' attribute ignored for field of type 'union TAG_operands' [-Wattributes]                                      
simcpu.h:75:13: warning: 'packed' attribute ignored for field of type 'struct TAG_instruction_fields' [-Wattributes]

$ gcc -o simcpu executor.c user_interface.c                                                      
In file included from executor.c:23:0:                                                                                                         
simcpu.h:60:13: warning: 'packed' attribute ignored for field of type 'byte' [-Wattributes]                                                    
simcpu.h:72:19: warning: 'packed' attribute ignored for field of type 'struct TAG_registers' [-Wattributes]                                    
simcpu.h:73:19: warning: 'packed' attribute ignored for field of type 'byte' [-Wattributes]                                                    
simcpu.h:74:16: warning: 'packed' attribute ignored for field of type 'union TAG_operands' [-Wattributes]                                      
simcpu.h:75:13: warning: 'packed' attribute ignored for field of type 'struct TAG_instruction_fields' [-Wattributes]

e dopo averlo provato non mi sembra che funzioni...
non conoscendo il c ho difficolta a risolvere il problema

grazie per gli eventuali consigli

[Gimli[2BV!2B]]

Quei warning riguardanti l'attributo packed non dovrebbero dare alcun problema.

L'attributo packed dovrebbe riguardare solo la minimizzazione della memoria occupata:

packed

This attribute, attached to struct or union type definition, specifies that each member (other than zero-width bitfields) of the structure or union is placed to minimize the memory required. When attached to an enum definition, it indicates that the smallest integral type should be used.

In tutti i casi correggerei con questa patch il codice che il compilatore non sembra apprezzare del tutto:

--- simcpu.h.original   2005-05-18 15:39:34.000000000 +0200
+++ simcpu.h    2012-11-05 01:27:41.379956560 +0100
@@ -57,22 +57,22 @@ typedef unsigned char       byte;
 typedef unsigned char       flag;
 typedef struct TAG_instruction
         {
-            byte opcode                              __attribute__ ((packed));
-            struct TAG_instruction_fields
+            byte opcode;
+            struct __attribute__ ((packed)) TAG_instruction_fields
             {
                unsigned  group            : 2        __attribute__ ((packed));
                unsigned  addressing_mode  : 2        __attribute__ ((packed));
                unsigned  instruction_code : 4        __attribute__ ((packed));
-               union TAG_operands
+               union __attribute__ ((packed)) TAG_operands
                {
-                  struct TAG_registers
+                  struct __attribute__ ((packed)) TAG_registers
                   {
                      unsigned  first_register   : 4  __attribute__ ((packed));
                      unsigned  second_register  : 4  __attribute__ ((packed));
-                  } registers                        __attribute__ ((packed));
-                  byte offset                        __attribute__ ((packed));
-               } operands                            __attribute__ ((packed));
-            } instruction_fields                     __attribute__ ((packed));
+                  } registers;
+                  byte offset;
+               } operands;
+            } instruction_fields;
          } instruction;

Salvata in un file simcpu.h.patch questo è il comando per applicarla:

patch -d /home/gimli/Scaricati/simcpu/source -p0 < simcpu.h.patch

gimli@sertan ~/Scaricati/simcpu/source $ gcc -o simcpu executor.c user_interface.c
gimli@sertan ~/Scaricati/simcpu/source $ gcc -o assembler assembler.c
gimli@sertan ~/Scaricati/simcpu/source $

[asghan]

ciao
penso di aver sbagliato qualcosa...

ho copiato il file in /tmp/simcpu/source/simcpu.h.patch

/tmp/simcpu/source$ ls
assembler.c  include.c           make_include.bat  readme.txt  simcpu.h.patch
executor.c   make_assembler.bat  make_simcpu.bat   simcpu.h    user_interface.c

/tmp/simcpu/source$ patch -d /tmp/simcpu/source -p0 < simcpu.h.patch
patching file simcpu.h
Hunk #1 FAILED at 57.
1 out of 1 hunk FAILED -- saving rejects to file simcpu.h.rej

/tmp/simcpu/source$ ls
assembler.c  include.c           make_include.bat  readme.txt  simcpu.h.orig   simcpu.h.rej
executor.c   make_assembler.bat  make_simcpu.bat   simcpu.h    simcpu.h.patch  user_interface.c

[Gimli[2BV!2B]]

Bah, end of line Windows che si mangiano copiando dal forum.

gimli@sertan ~ $ patch -d /home/gimli/Scaricati/simcpu/source -p0 < Scaricati/simcpu/source/simcpu.h.patch_2 
patching file simcpu.h
Hunk #1 FAILED at 57 (different line endings).
1 out of 1 hunk FAILED -- saving rejects to file simcpu.h.rej

Allego il file.