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c/3504: __alignof__ not working correctly
- To: gcc-gnats at gcc dot gnu dot org
- Subject: c/3504: __alignof__ not working correctly
- From: 85445-quiet at bugs dot debian dot org
- Date: 1 Jul 2001 15:40:37 -0000
- Cc: herbert at gondor dot apana dot org dot au
- Reply-To: 85445-quiet at bugs dot debian dot org
>Number: 3504
>Category: c
>Synopsis: __alignof__ not working correctly
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Sun Jul 01 08:46:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator: herbert@gondor.apana.org.au
>Release: 2.95.3, 3.0, HEAD
>Organization:
>Environment:
Debian GNU/Linux unstable
>Description:
[report to the Debian BTS as report #85445; accessible via
http://bugs.debian.org/85445.
Please CC 85445@bugs.debian.org on replies]
According to the documentation,
: When the operand of `__alignof__' is an lvalue rather than a type,
: the value is the largest alignment that the lvalue is known to have.
: It may have this alignment as a result of its data type, or because it
: is part of a structure and inherits alignment from that structure. For
: example, after this declaration:
:
: struct foo { int x; char y; } foo1;
:
: the value of `__alignof__ (foo1.y)' is probably 2 or 4, the same as
: `__alignof__ (int)', even though the data type of `foo1.y' does not
: itself demand any alignment.
However,
$ cat a.c
#include <stdio.h>
#include <netinet/ip_icmp.h>
int main() {
struct icmp foo;
printf("%d\n", __alignof__(foo.icmp_dun));
printf("%d\n", __alignof__(foo.icmp_data));
return 0;
}
$ make a
cc a.c -o a
$ ./a
4
1
$
where struct icmp is defined as,
struct icmp
{
u_int8_t icmp_type; /* type of message, see below */
u_int8_t icmp_code; /* type sub code */
u_int16_t icmp_cksum; /* ones complement checksum of struct */
union
{
u_char ih_pptr; /* ICMP_PARAMPROB */
struct in_addr ih_gwaddr; /* gateway address */
struct ih_idseq /* echo datagram */
{
u_int16_t icd_id;
u_int16_t icd_seq;
} ih_idseq;
u_int32_t ih_void;
/* ICMP_UNREACH_NEEDFRAG -- Path MTU Discovery (RFC1191) */
struct ih_pmtu
{
u_int16_t ipm_void;
u_int16_t ipm_nextmtu;
} ih_pmtu;
struct ih_rtradv
{
u_int8_t irt_num_addrs;
u_int8_t irt_wpa;
u_int16_t irt_lifetime;
} ih_rtradv;
} icmp_hun;
#define icmp_pptr icmp_hun.ih_pptr
#define icmp_gwaddr icmp_hun.ih_gwaddr
#define icmp_id icmp_hun.ih_idseq.icd_id
#define icmp_seq icmp_hun.ih_idseq.icd_seq
#define icmp_void icmp_hun.ih_void
#define icmp_pmvoid icmp_hun.ih_pmtu.ipm_void
#define icmp_nextmtu icmp_hun.ih_pmtu.ipm_nextmtu
#define icmp_num_addrs icmp_hun.ih_rtradv.irt_num_addrs
#define icmp_wpa icmp_hun.ih_rtradv.irt_wpa
#define icmp_lifetime icmp_hun.ih_rtradv.irt_lifetime
union
{
struct
{
u_int32_t its_otime;
u_int32_t its_rtime;
u_int32_t its_ttime;
} id_ts;
struct
{
struct ip idi_ip;
/* options and then 64 bits of data */
} id_ip;
struct icmp_ra_addr id_radv;
u_int32_t id_mask;
u_int8_t id_data[1];
} icmp_dun;
#define icmp_otime icmp_dun.id_ts.its_otime
#define icmp_rtime icmp_dun.id_ts.its_rtime
#define icmp_ttime icmp_dun.id_ts.its_ttime
#define icmp_ip icmp_dun.id_ip.idi_ip
#define icmp_radv icmp_dun.id_radv
#define icmp_mask icmp_dun.id_mask
#define icmp_data icmp_dun.id_data
};
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: text/plain; name="bug-85445.i"
Content-Disposition: inline; filename="bug-85445.i"
# 1 "bug-85445.c"
# 1 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 1 3
# 36 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 3
# 1 "/usr/include/features.h" 1 3
# 283 "/usr/include/features.h" 3
# 1 "/usr/include/sys/cdefs.h" 1 3
# 284 "/usr/include/features.h" 2 3
# 312 "/usr/include/features.h" 3
# 1 "/usr/include/gnu/stubs.h" 1 3
# 313 "/usr/include/features.h" 2 3
# 37 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 2 3
# 1 "/usr/lib/gcc-lib/i386-linux/3.0/include/stddef.h" 1 3
# 199 "/usr/lib/gcc-lib/i386-linux/3.0/include/stddef.h" 3
typedef unsigned int size_t;
# 43 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 2 3
# 1 "/usr/include/bits/types.h" 1 3
# 26 "/usr/include/bits/types.h" 3
# 1 "/usr/include/features.h" 1 3
# 27 "/usr/include/bits/types.h" 2 3
# 1 "/usr/lib/gcc-lib/i386-linux/3.0/include/stddef.h" 1 3
# 30 "/usr/include/bits/types.h" 2 3
typedef unsigned char __u_char;
typedef unsigned short __u_short;
typedef unsigned int __u_int;
typedef unsigned long __u_long;
__extension__ typedef unsigned long long int __u_quad_t;
__extension__ typedef long long int __quad_t;
# 49 "/usr/include/bits/types.h" 3
typedef signed char __int8_t;
typedef unsigned char __uint8_t;
typedef signed short int __int16_t;
typedef unsigned short int __uint16_t;
typedef signed int __int32_t;
typedef unsigned int __uint32_t;
__extension__ typedef signed long long int __int64_t;
__extension__ typedef unsigned long long int __uint64_t;
typedef __quad_t *__qaddr_t;
typedef __u_quad_t __dev_t;
typedef __u_int __uid_t;
typedef __u_int __gid_t;
typedef __u_long __ino_t;
typedef __u_int __mode_t;
typedef __u_int __nlink_t;
typedef long int __off_t;
typedef __quad_t __loff_t;
typedef int __pid_t;
typedef int __ssize_t;
typedef __u_long __rlim_t;
typedef __u_quad_t __rlim64_t;
typedef __u_int __id_t;
typedef struct
{
int __val[2];
} __fsid_t;
typedef int __daddr_t;
typedef char *__caddr_t;
typedef long int __time_t;
typedef unsigned int __useconds_t;
typedef long int __suseconds_t;
typedef long int __swblk_t;
typedef long int __clock_t;
typedef int __clockid_t;
typedef int __timer_t;
typedef int __key_t;
typedef unsigned short int __ipc_pid_t;
typedef long int __blksize_t;
typedef long int __blkcnt_t;
typedef __quad_t __blkcnt64_t;
typedef __u_long __fsblkcnt_t;
typedef __u_quad_t __fsblkcnt64_t;
typedef __u_long __fsfilcnt_t;
typedef __u_quad_t __fsfilcnt64_t;
typedef __u_quad_t __ino64_t;
typedef __loff_t __off64_t;
typedef long int __t_scalar_t;
typedef unsigned long int __t_uscalar_t;
typedef int __intptr_t;
typedef unsigned int __socklen_t;
# 1 "/usr/include/bits/pthreadtypes.h" 1 3
# 23 "/usr/include/bits/pthreadtypes.h" 3
# 1 "/usr/include/bits/sched.h" 1 3
# 68 "/usr/include/bits/sched.h" 3
struct __sched_param
{
int __sched_priority;
};
# 24 "/usr/include/bits/pthreadtypes.h" 2 3
struct _pthread_fastlock
{
long int __status;
int __spinlock;
};
typedef struct _pthread_descr_struct *_pthread_descr;
typedef struct __pthread_attr_s
{
int __detachstate;
int __schedpolicy;
struct __sched_param __schedparam;
int __inheritsched;
int __scope;
size_t __guardsize;
int __stackaddr_set;
void *__stackaddr;
size_t __stacksize;
} pthread_attr_t;
typedef struct
{
struct _pthread_fastlock __c_lock;
_pthread_descr __c_waiting;
} pthread_cond_t;
typedef struct
{
int __dummy;
} pthread_condattr_t;
typedef unsigned int pthread_key_t;
typedef struct
{
int __m_reserved;
int __m_count;
_pthread_descr __m_owner;
int __m_kind;
struct _pthread_fastlock __m_lock;
} pthread_mutex_t;
typedef struct
{
int __mutexkind;
} pthread_mutexattr_t;
typedef int pthread_once_t;
# 140 "/usr/include/bits/pthreadtypes.h" 3
typedef unsigned long int pthread_t;
# 144 "/usr/include/bits/types.h" 2 3
# 45 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 2 3
# 53 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 3
typedef struct _IO_FILE FILE;
# 63 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 3
typedef struct _IO_FILE __FILE;
# 73 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 3
# 1 "/usr/include/libio.h" 1 3
# 30 "/usr/include/libio.h" 3
# 1 "/usr/include/_G_config.h" 1 3
# 9 "/usr/include/_G_config.h" 3
# 1 "/usr/include/bits/types.h" 1 3
# 10 "/usr/include/_G_config.h" 2 3
# 1 "/usr/lib/gcc-lib/i386-linux/3.0/include/stddef.h" 1 3
# 287 "/usr/lib/gcc-lib/i386-linux/3.0/include/stddef.h" 3
typedef long int wchar_t;
# 312 "/usr/lib/gcc-lib/i386-linux/3.0/include/stddef.h" 3
typedef unsigned int wint_t;
# 15 "/usr/include/_G_config.h" 2 3
# 24 "/usr/include/_G_config.h" 3
# 1 "/usr/include/wchar.h" 1 3
# 48 "/usr/include/wchar.h" 3
# 1 "/usr/lib/gcc-lib/i386-linux/3.0/include/stddef.h" 1 3
# 49 "/usr/include/wchar.h" 2 3
# 1 "/usr/include/bits/wchar.h" 1 3
# 51 "/usr/include/wchar.h" 2 3
# 67 "/usr/include/wchar.h" 3
typedef struct
{
int __count;
union
{
wint_t __wch;
char __wchb[4];
} __value;
} __mbstate_t;
# 25 "/usr/include/_G_config.h" 2 3
typedef struct
{
__off_t __pos;
__mbstate_t __state;
} _G_fpos_t;
typedef struct
{
__off64_t __pos;
__mbstate_t __state;
} _G_fpos64_t;
# 44 "/usr/include/_G_config.h" 3
# 1 "/usr/include/gconv.h" 1 3
# 26 "/usr/include/gconv.h" 3
# 1 "/usr/include/features.h" 1 3
# 27 "/usr/include/gconv.h" 2 3
# 1 "/usr/include/wchar.h" 1 3
# 48 "/usr/include/wchar.h" 3
# 1 "/usr/lib/gcc-lib/i386-linux/3.0/include/stddef.h" 1 3
# 49 "/usr/include/wchar.h" 2 3
# 1 "/usr/include/bits/wchar.h" 1 3
# 51 "/usr/include/wchar.h" 2 3
# 29 "/usr/include/gconv.h" 2 3
# 1 "/usr/lib/gcc-lib/i386-linux/3.0/include/stddef.h" 1 3
# 31 "/usr/include/gconv.h" 2 3
enum
{
__GCONV_OK = 0,
__GCONV_NOCONV,
__GCONV_NODB,
__GCONV_NOMEM,
__GCONV_EMPTY_INPUT,
__GCONV_FULL_OUTPUT,
__GCONV_ILLEGAL_INPUT,
__GCONV_INCOMPLETE_INPUT,
__GCONV_ILLEGAL_DESCRIPTOR,
__GCONV_INTERNAL_ERROR
};
enum
{
__GCONV_IS_LAST = 0x0001,
__GCONV_IGNORE_ERRORS = 0x0002
};
struct __gconv_step;
struct __gconv_step_data;
struct __gconv_loaded_object;
struct __gconv_trans_data;
typedef int (*__gconv_fct) (struct __gconv_step *, struct __gconv_step_data *,
__const unsigned char **, __const unsigned char *,
unsigned char **, size_t *, int, int);
typedef int (*__gconv_init_fct) (struct __gconv_step *);
typedef void (*__gconv_end_fct) (struct __gconv_step *);
typedef int (*__gconv_trans_fct) (struct __gconv_step *,
struct __gconv_step_data *, void *,
__const unsigned char *,
__const unsigned char **,
__const unsigned char *, unsigned char **,
size_t *);
typedef int (*__gconv_trans_context_fct) (void *, __const unsigned char *,
__const unsigned char *,
unsigned char *, unsigned char *);
typedef int (*__gconv_trans_query_fct) (__const char *, __const char ***,
size_t *);
typedef int (*__gconv_trans_init_fct) (void **, const char *);
typedef void (*__gconv_trans_end_fct) (void *);
struct __gconv_trans_data
{
__gconv_trans_fct __trans_fct;
__gconv_trans_context_fct __trans_context_fct;
__gconv_trans_end_fct __trans_end_fct;
void *__data;
struct __gconv_trans_data *__next;
};
struct __gconv_step
{
struct __gconv_loaded_object *__shlib_handle;
__const char *__modname;
int __counter;
char *__from_name;
char *__to_name;
__gconv_fct __fct;
__gconv_init_fct __init_fct;
__gconv_end_fct __end_fct;
int __min_needed_from;
int __max_needed_from;
int __min_needed_to;
int __max_needed_to;
int __stateful;
void *__data;
};
struct __gconv_step_data
{
unsigned char *__outbuf;
unsigned char *__outbufend;
int __flags;
int __invocation_counter;
int __internal_use;
__mbstate_t *__statep;
__mbstate_t __state;
struct __gconv_trans_data *__trans;
};
typedef struct __gconv_info
{
size_t __nsteps;
struct __gconv_step *__steps;
__extension__ struct __gconv_step_data __data [];
} *__gconv_t;
# 45 "/usr/include/_G_config.h" 2 3
typedef union
{
struct __gconv_info __cd;
struct
{
struct __gconv_info __cd;
struct __gconv_step_data __data;
} __combined;
} _G_iconv_t;
typedef int _G_int16_t __attribute__ ((__mode__ (__HI__)));
typedef int _G_int32_t __attribute__ ((__mode__ (__SI__)));
typedef unsigned int _G_uint16_t __attribute__ ((__mode__ (__HI__)));
typedef unsigned int _G_uint32_t __attribute__ ((__mode__ (__SI__)));
# 31 "/usr/include/libio.h" 2 3
# 51 "/usr/include/libio.h" 3
# 1 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdarg.h" 1 3
# 43 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdarg.h" 3
typedef __builtin_va_list __gnuc_va_list;
# 52 "/usr/include/libio.h" 2 3
# 158 "/usr/include/libio.h" 3
struct _IO_jump_t; struct _IO_FILE;
# 168 "/usr/include/libio.h" 3
typedef void _IO_lock_t;
struct _IO_marker {
struct _IO_marker *_next;
struct _IO_FILE *_sbuf;
int _pos;
# 191 "/usr/include/libio.h" 3
};
enum __codecvt_result
{
__codecvt_ok,
__codecvt_partial,
__codecvt_error,
__codecvt_noconv
};
# 259 "/usr/include/libio.h" 3
struct _IO_FILE {
int _flags;
char* _IO_read_ptr;
char* _IO_read_end;
char* _IO_read_base;
char* _IO_write_base;
char* _IO_write_ptr;
char* _IO_write_end;
char* _IO_buf_base;
char* _IO_buf_end;
char *_IO_save_base;
char *_IO_backup_base;
char *_IO_save_end;
struct _IO_marker *_markers;
struct _IO_FILE *_chain;
int _fileno;
int _blksize;
__off_t _old_offset;
unsigned short _cur_column;
signed char _vtable_offset;
char _shortbuf[1];
_IO_lock_t *_lock;
# 303 "/usr/include/libio.h" 3
__off64_t _offset;
void *__pad1;
void *__pad2;
int _mode;
char _unused2[15 * sizeof (int) - 2 * sizeof (void *)];
};
typedef struct _IO_FILE _IO_FILE;
struct _IO_FILE_plus;
extern struct _IO_FILE_plus _IO_2_1_stdin_;
extern struct _IO_FILE_plus _IO_2_1_stdout_;
extern struct _IO_FILE_plus _IO_2_1_stderr_;
# 342 "/usr/include/libio.h" 3
typedef __ssize_t __io_read_fn (void *__cookie, char *__buf, size_t __nbytes);
typedef __ssize_t __io_write_fn (void *__cookie, __const char *__buf,
size_t __n);
typedef int __io_seek_fn (void *__cookie, __off64_t *__pos, int __w);
typedef int __io_close_fn (void *__cookie);
# 394 "/usr/include/libio.h" 3
extern int __underflow (_IO_FILE *) ;
extern int __uflow (_IO_FILE *) ;
extern int __overflow (_IO_FILE *, int) ;
extern wint_t __wunderflow (_IO_FILE *) ;
extern wint_t __wuflow (_IO_FILE *) ;
extern wint_t __woverflow (_IO_FILE *, wint_t) ;
# 424 "/usr/include/libio.h" 3
extern int _IO_getc (_IO_FILE *__fp) ;
extern int _IO_putc (int __c, _IO_FILE *__fp) ;
extern int _IO_feof (_IO_FILE *__fp) ;
extern int _IO_ferror (_IO_FILE *__fp) ;
extern int _IO_peekc_locked (_IO_FILE *__fp) ;
extern void _IO_flockfile (_IO_FILE *) ;
extern void _IO_funlockfile (_IO_FILE *) ;
extern int _IO_ftrylockfile (_IO_FILE *) ;
# 454 "/usr/include/libio.h" 3
extern int _IO_vfscanf (_IO_FILE * __restrict, const char * __restrict,
__gnuc_va_list, int *__restrict) ;
extern int _IO_vfprintf (_IO_FILE *__restrict, const char *__restrict,
__gnuc_va_list) ;
extern __ssize_t _IO_padn (_IO_FILE *, int, __ssize_t) ;
extern size_t _IO_sgetn (_IO_FILE *, void *, size_t) ;
extern __off64_t _IO_seekoff (_IO_FILE *, __off64_t, int, int) ;
extern __off64_t _IO_seekpos (_IO_FILE *, __off64_t, int) ;
extern void _IO_free_backup_area (_IO_FILE *) ;
# 74 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 2 3
# 88 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 3
typedef _G_fpos_t fpos_t;
# 137 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 3
# 1 "/usr/include/bits/stdio_lim.h" 1 3
# 138 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 2 3
extern FILE *stdin;
extern FILE *stdout;
extern FILE *stderr;
extern int remove (__const char *__filename) ;
extern int rename (__const char *__old, __const char *__new) ;
extern FILE *tmpfile (void) ;
# 169 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 3
extern char *tmpnam (char *__s) ;
extern char *tmpnam_r (char *__s) ;
# 186 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 3
extern char *tempnam (__const char *__dir, __const char *__pfx)
__attribute__ ((__malloc__));
extern int fclose (FILE *__stream) ;
extern int fflush (FILE *__stream) ;
extern int fflush_unlocked (FILE *__stream) ;
# 209 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 3
extern FILE *fopen (__const char *__restrict __filename,
__const char *__restrict __modes) ;
extern FILE *freopen (__const char *__restrict __filename,
__const char *__restrict __modes,
FILE *__restrict __stream) ;
# 239 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 3
extern FILE *fdopen (int __fd, __const char *__modes) ;
# 262 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 3
extern void setbuf (FILE *__restrict __stream, char *__restrict __buf) ;
extern int setvbuf (FILE *__restrict __stream, char *__restrict __buf,
int __modes, size_t __n) ;
extern void setbuffer (FILE *__restrict __stream, char *__restrict __buf,
size_t __size) ;
extern void setlinebuf (FILE *__stream) ;
extern int fprintf (FILE *__restrict __stream,
__const char *__restrict __format, ...) ;
extern int printf (__const char *__restrict __format, ...) ;
extern int sprintf (char *__restrict __s,
__const char *__restrict __format, ...) ;
extern int vfprintf (FILE *__restrict __s, __const char *__restrict __format,
__gnuc_va_list __arg) ;
extern int vprintf (__const char *__restrict __format, __gnuc_va_list __arg)
;
extern int vsprintf (char *__restrict __s, __const char *__restrict __format,
__gnuc_va_list __arg) ;
extern int snprintf (char *__restrict __s, size_t __maxlen,
__const char *__restrict __format, ...)
__attribute__ ((__format__ (__printf__, 3, 4)));
extern int vsnprintf (char *__restrict __s, size_t __maxlen,
__const char *__restrict __format, __gnuc_va_list __arg)
__attribute__ ((__format__ (__printf__, 3, 0)));
# 333 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 3
extern int fscanf (FILE *__restrict __stream,
__const char *__restrict __format, ...) ;
extern int scanf (__const char *__restrict __format, ...) ;
extern int sscanf (__const char *__restrict __s,
__const char *__restrict __format, ...) ;
# 359 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 3
extern int fgetc (FILE *__stream) ;
extern int getc (FILE *__stream) ;
extern int getchar (void) ;
extern int getc_unlocked (FILE *__stream) ;
extern int getchar_unlocked (void) ;
extern int fgetc_unlocked (FILE *__stream) ;
extern int fputc (int __c, FILE *__stream) ;
extern int putc (int __c, FILE *__stream) ;
extern int putchar (int __c) ;
extern int fputc_unlocked (int __c, FILE *__stream) ;
extern int putc_unlocked (int __c, FILE *__stream) ;
extern int putchar_unlocked (int __c) ;
extern int getw (FILE *__stream) ;
extern int putw (int __w, FILE *__stream) ;
extern char *fgets (char *__restrict __s, int __n, FILE *__restrict __stream)
;
# 425 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 3
extern char *gets (char *__s) ;
# 449 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 3
extern int fputs (__const char *__restrict __s, FILE *__restrict __stream)
;
# 459 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 3
extern int puts (__const char *__s) ;
extern int ungetc (int __c, FILE *__stream) ;
extern size_t fread (void *__restrict __ptr, size_t __size,
size_t __n, FILE *__restrict __stream) ;
extern size_t fwrite (__const void *__restrict __ptr, size_t __size,
size_t __n, FILE *__restrict __s) ;
extern size_t fread_unlocked (void *__restrict __ptr, size_t __size,
size_t __n, FILE *__restrict __stream) ;
extern size_t fwrite_unlocked (__const void *__restrict __ptr, size_t __size,
size_t __n, FILE *__restrict __stream) ;
extern int fseek (FILE *__stream, long int __off, int __whence) ;
extern long int ftell (FILE *__stream) ;
extern void rewind (FILE *__stream) ;
# 503 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 3
extern int fgetpos (FILE *__restrict __stream, fpos_t *__restrict __pos)
;
extern int fsetpos (FILE *__stream, __const fpos_t *__pos) ;
# 539 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 3
extern void clearerr (FILE *__stream) ;
extern int feof (FILE *__stream) ;
extern int ferror (FILE *__stream) ;
extern void clearerr_unlocked (FILE *__stream) ;
extern int feof_unlocked (FILE *__stream) ;
extern int ferror_unlocked (FILE *__stream) ;
extern void perror (__const char *__s) ;
extern int sys_nerr;
extern __const char *__const sys_errlist[];
# 570 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 3
extern int fileno (FILE *__stream) ;
extern int fileno_unlocked (FILE *__stream) ;
extern FILE *popen (__const char *__command, __const char *__modes) ;
extern int pclose (FILE *__stream) ;
extern char *ctermid (char *__s) ;
# 617 "/usr/lib/gcc-lib/i386-linux/3.0/include/stdio.h" 3
extern void flockfile (FILE *__stream) ;
extern int ftrylockfile (FILE *__stream) ;
extern void funlockfile (FILE *__stream) ;
# 2 "bug-85445.c" 2
# 1 "/usr/include/netinet/ip_icmp.h" 1 3
# 22 "/usr/include/netinet/ip_icmp.h" 3
# 1 "/usr/include/sys/cdefs.h" 1 3
# 23 "/usr/include/netinet/ip_icmp.h" 2 3
# 1 "/usr/include/sys/types.h" 1 3
# 26 "/usr/include/sys/types.h" 3
# 1 "/usr/include/features.h" 1 3
# 27 "/usr/include/sys/types.h" 2 3
# 1 "/usr/include/bits/types.h" 1 3
# 31 "/usr/include/sys/types.h" 2 3
typedef __u_char u_char;
typedef __u_short u_short;
typedef __u_int u_int;
typedef __u_long u_long;
typedef __quad_t quad_t;
typedef __u_quad_t u_quad_t;
typedef __fsid_t fsid_t;
typedef __loff_t loff_t;
typedef __ino_t ino_t;
# 61 "/usr/include/sys/types.h" 3
typedef __dev_t dev_t;
typedef __gid_t gid_t;
typedef __mode_t mode_t;
typedef __nlink_t nlink_t;
typedef __uid_t uid_t;
typedef __off_t off_t;
# 99 "/usr/include/sys/types.h" 3
typedef __pid_t pid_t;
typedef __id_t id_t;
typedef __ssize_t ssize_t;
typedef __daddr_t daddr_t;
typedef __caddr_t caddr_t;
typedef __key_t key_t;
# 132 "/usr/include/sys/types.h" 3
# 1 "/usr/include/time.h" 1 3
# 67 "/usr/include/time.h" 3
# 1 "/usr/include/bits/types.h" 1 3
# 68 "/usr/include/time.h" 2 3
typedef __time_t time_t;
# 79 "/usr/include/time.h" 3
# 1 "/usr/include/bits/types.h" 1 3
# 80 "/usr/include/time.h" 2 3
typedef __clockid_t clockid_t;
# 91 "/usr/include/time.h" 3
# 1 "/usr/include/bits/types.h" 1 3
# 92 "/usr/include/time.h" 2 3
typedef __timer_t timer_t;
# 133 "/usr/include/sys/types.h" 2 3
# 146 "/usr/include/sys/types.h" 3
# 1 "/usr/lib/gcc-lib/i386-linux/3.0/include/stddef.h" 1 3
# 147 "/usr/include/sys/types.h" 2 3
typedef unsigned long int ulong;
typedef unsigned short int ushort;
typedef unsigned int uint;
# 190 "/usr/include/sys/types.h" 3
typedef int int8_t __attribute__ ((__mode__ (__QI__)));
typedef int int16_t __attribute__ ((__mode__ (__HI__)));
typedef int int32_t __attribute__ ((__mode__ (__SI__)));
typedef int int64_t __attribute__ ((__mode__ (__DI__)));
typedef unsigned int u_int8_t __attribute__ ((__mode__ (__QI__)));
typedef unsigned int u_int16_t __attribute__ ((__mode__ (__HI__)));
typedef unsigned int u_int32_t __attribute__ ((__mode__ (__SI__)));
typedef unsigned int u_int64_t __attribute__ ((__mode__ (__DI__)));
typedef int register_t __attribute__ ((__mode__ (__word__)));
# 212 "/usr/include/sys/types.h" 3
# 1 "/usr/include/endian.h" 1 3
# 22 "/usr/include/endian.h" 3
# 1 "/usr/include/features.h" 1 3
# 23 "/usr/include/endian.h" 2 3
# 37 "/usr/include/endian.h" 3
# 1 "/usr/include/bits/endian.h" 1 3
# 38 "/usr/include/endian.h" 2 3
# 213 "/usr/include/sys/types.h" 2 3
# 1 "/usr/include/sys/select.h" 1 3
# 25 "/usr/include/sys/select.h" 3
# 1 "/usr/include/features.h" 1 3
# 26 "/usr/include/sys/select.h" 2 3
# 1 "/usr/include/bits/types.h" 1 3
# 29 "/usr/include/sys/select.h" 2 3
# 1 "/usr/include/bits/select.h" 1 3
# 32 "/usr/include/sys/select.h" 2 3
# 1 "/usr/include/bits/sigset.h" 1 3
# 23 "/usr/include/bits/sigset.h" 3
typedef int __sig_atomic_t;
typedef struct
{
unsigned long int __val[(1024 / (8 * sizeof (unsigned long int)))];
} __sigset_t;
# 35 "/usr/include/sys/select.h" 2 3
typedef __sigset_t sigset_t;
# 1 "/usr/include/time.h" 1 3
# 106 "/usr/include/time.h" 3
struct timespec
{
long int tv_sec;
long int tv_nsec;
};
# 44 "/usr/include/sys/select.h" 2 3
# 1 "/usr/include/bits/time.h" 1 3
# 63 "/usr/include/bits/time.h" 3
# 1 "/usr/include/bits/types.h" 1 3
# 64 "/usr/include/bits/time.h" 2 3
struct timeval
{
__time_t tv_sec;
__suseconds_t tv_usec;
};
# 46 "/usr/include/sys/select.h" 2 3
typedef long int __fd_mask;
typedef struct
{
__fd_mask __fds_bits[1024 / (8 * sizeof (__fd_mask))];
} fd_set;
typedef __fd_mask fd_mask;
# 96 "/usr/include/sys/select.h" 3
extern int select (int __nfds, fd_set *__restrict __readfds,
fd_set *__restrict __writefds,
fd_set *__restrict __exceptfds,
struct timeval *__restrict __timeout) ;
# 216 "/usr/include/sys/types.h" 2 3
# 1 "/usr/include/sys/sysmacros.h" 1 3
# 219 "/usr/include/sys/types.h" 2 3
# 230 "/usr/include/sys/types.h" 3
typedef __blkcnt_t blkcnt_t;
typedef __fsblkcnt_t fsblkcnt_t;
typedef __fsfilcnt_t fsfilcnt_t;
# 24 "/usr/include/netinet/ip_icmp.h" 2 3
struct icmphdr
{
u_int8_t type;
u_int8_t code;
u_int16_t checksum;
union
{
struct
{
u_int16_t id;
u_int16_t sequence;
} echo;
u_int32_t gateway;
struct
{
u_int16_t __unused;
u_int16_t mtu;
} frag;
} un;
};
# 126 "/usr/include/netinet/ip_icmp.h" 3
# 1 "/usr/include/netinet/in.h" 1 3
# 22 "/usr/include/netinet/in.h" 3
# 1 "/usr/include/features.h" 1 3
# 23 "/usr/include/netinet/in.h" 2 3
# 1 "/usr/include/stdint.h" 1 3
# 26 "/usr/include/stdint.h" 3
# 1 "/usr/include/features.h" 1 3
# 27 "/usr/include/stdint.h" 2 3
# 1 "/usr/lib/gcc-lib/i386-linux/3.0/include/stddef.h" 1 3
# 29 "/usr/include/stdint.h" 2 3
# 1 "/usr/include/bits/wchar.h" 1 3
# 30 "/usr/include/stdint.h" 2 3
# 1 "/usr/include/bits/wordsize.h" 1 3
# 31 "/usr/include/stdint.h" 2 3
# 51 "/usr/include/stdint.h" 3
typedef unsigned char uint8_t;
typedef unsigned short int uint16_t;
typedef unsigned int uint32_t;
__extension__
typedef unsigned long long int uint64_t;
typedef signed char int_least8_t;
typedef short int int_least16_t;
typedef int int_least32_t;
__extension__
typedef long long int int_least64_t;
typedef unsigned char uint_least8_t;
typedef unsigned short int uint_least16_t;
typedef unsigned int uint_least32_t;
__extension__
typedef unsigned long long int uint_least64_t;
typedef signed char int_fast8_t;
typedef int int_fast16_t;
typedef int int_fast32_t;
__extension__
typedef long long int int_fast64_t;
typedef unsigned char uint_fast8_t;
typedef unsigned int uint_fast16_t;
typedef unsigned int uint_fast32_t;
__extension__
typedef unsigned long long int uint_fast64_t;
# 128 "/usr/include/stdint.h" 3
typedef int intptr_t;
typedef unsigned int uintptr_t;
# 140 "/usr/include/stdint.h" 3
__extension__
typedef long long int intmax_t;
__extension__
typedef unsigned long long int uintmax_t;
# 24 "/usr/include/netinet/in.h" 2 3
# 1 "/usr/include/bits/types.h" 1 3
# 25 "/usr/include/netinet/in.h" 2 3
enum
{
IPPROTO_IP = 0,
IPPROTO_HOPOPTS = 0,
IPPROTO_ICMP = 1,
IPPROTO_IGMP = 2,
IPPROTO_IPIP = 4,
IPPROTO_TCP = 6,
IPPROTO_EGP = 8,
IPPROTO_PUP = 12,
IPPROTO_UDP = 17,
IPPROTO_IDP = 22,
IPPROTO_TP = 29,
IPPROTO_IPV6 = 41,
IPPROTO_ROUTING = 43,
IPPROTO_FRAGMENT = 44,
IPPROTO_RSVP = 46,
IPPROTO_GRE = 47,
IPPROTO_ESP = 50,
IPPROTO_AH = 51,
IPPROTO_ICMPV6 = 58,
IPPROTO_NONE = 59,
IPPROTO_DSTOPTS = 60,
IPPROTO_MTP = 92,
IPPROTO_ENCAP = 98,
IPPROTO_PIM = 103,
IPPROTO_COMP = 108,
IPPROTO_RAW = 255,
IPPROTO_MAX
};
typedef uint16_t in_port_t;
enum
{
IPPORT_ECHO = 7,
IPPORT_DISCARD = 9,
IPPORT_SYSTAT = 11,
IPPORT_DAYTIME = 13,
IPPORT_NETSTAT = 15,
IPPORT_FTP = 21,
IPPORT_TELNET = 23,
IPPORT_SMTP = 25,
IPPORT_TIMESERVER = 37,
IPPORT_NAMESERVER = 42,
IPPORT_WHOIS = 43,
IPPORT_MTP = 57,
IPPORT_TFTP = 69,
IPPORT_RJE = 77,
IPPORT_FINGER = 79,
IPPORT_TTYLINK = 87,
IPPORT_SUPDUP = 95,
IPPORT_EXECSERVER = 512,
IPPORT_LOGINSERVER = 513,
IPPORT_CMDSERVER = 514,
IPPORT_EFSSERVER = 520,
IPPORT_BIFFUDP = 512,
IPPORT_WHOSERVER = 513,
IPPORT_ROUTESERVER = 520,
IPPORT_RESERVED = 1024,
IPPORT_USERRESERVED = 5000
};
typedef uint32_t in_addr_t;
struct in_addr
{
in_addr_t s_addr;
};
# 190 "/usr/include/netinet/in.h" 3
struct in6_addr
{
union
{
uint8_t u6_addr8[16];
uint16_t u6_addr16[8];
uint32_t u6_addr32[4];
} in6_u;
};
extern const struct in6_addr in6addr_any;
extern const struct in6_addr in6addr_loopback;
# 1 "/usr/include/bits/socket.h" 1 3
# 29 "/usr/include/bits/socket.h" 3
# 1 "/usr/lib/gcc-lib/i386-linux/3.0/include/stddef.h" 1 3
# 30 "/usr/include/bits/socket.h" 2 3
# 1 "/usr/lib/gcc-lib/i386-linux/3.0/include/limits.h" 1 3
# 11 "/usr/lib/gcc-lib/i386-linux/3.0/include/limits.h" 3
# 1 "/usr/lib/gcc-lib/i386-linux/3.0/include/syslimits.h" 1 3
# 1 "/usr/lib/gcc-lib/i386-linux/3.0/include/limits.h" 1 3
# 130 "/usr/lib/gcc-lib/i386-linux/3.0/include/limits.h" 3
# 1 "/usr/include/limits.h" 1 3
# 26 "/usr/include/limits.h" 3
# 1 "/usr/include/features.h" 1 3
# 27 "/usr/include/limits.h" 2 3
# 144 "/usr/include/limits.h" 3
# 1 "/usr/include/bits/posix1_lim.h" 1 3
# 126 "/usr/include/bits/posix1_lim.h" 3
# 1 "/usr/include/bits/local_lim.h" 1 3
# 36 "/usr/include/bits/local_lim.h" 3
# 1 "/usr/include/linux/limits.h" 1 3
# 37 "/usr/include/bits/local_lim.h" 2 3
# 127 "/usr/include/bits/posix1_lim.h" 2 3
# 145 "/usr/include/limits.h" 2 3
# 1 "/usr/include/bits/posix2_lim.h" 1 3
# 149 "/usr/include/limits.h" 2 3
# 131 "/usr/lib/gcc-lib/i386-linux/3.0/include/limits.h" 2 3
# 8 "/usr/lib/gcc-lib/i386-linux/3.0/include/syslimits.h" 2 3
# 12 "/usr/lib/gcc-lib/i386-linux/3.0/include/limits.h" 2 3
# 32 "/usr/include/bits/socket.h" 2 3
# 1 "/usr/include/sys/types.h" 1 3
# 33 "/usr/include/bits/socket.h" 2 3
typedef __socklen_t socklen_t;
enum __socket_type
{
SOCK_STREAM = 1,
SOCK_DGRAM = 2,
SOCK_RAW = 3,
SOCK_RDM = 4,
SOCK_SEQPACKET = 5,
SOCK_PACKET = 10
};
# 140 "/usr/include/bits/socket.h" 3
# 1 "/usr/include/bits/sockaddr.h" 1 3
# 29 "/usr/include/bits/sockaddr.h" 3
typedef unsigned short int sa_family_t;
# 141 "/usr/include/bits/socket.h" 2 3
struct sockaddr
{
sa_family_t sa_family;
char sa_data[14];
};
# 160 "/usr/include/bits/socket.h" 3
struct sockaddr_storage
{
sa_family_t ss_family;
__uint32_t __ss_align;
char __ss_padding[(128 - (2 * sizeof (__uint32_t)))];
};
enum
{
MSG_OOB = 0x01,
MSG_PEEK = 0x02,
MSG_DONTROUTE = 0x04,
MSG_CTRUNC = 0x08,
MSG_PROXY = 0x10,
MSG_TRUNC = 0x20,
MSG_DONTWAIT = 0x40,
MSG_EOR = 0x80,
MSG_WAITALL = 0x100,
MSG_FIN = 0x200,
MSG_SYN = 0x400,
MSG_CONFIRM = 0x800,
MSG_RST = 0x1000,
MSG_ERRQUEUE = 0x2000,
MSG_NOSIGNAL = 0x4000,
MSG_MORE = 0x8000
};
struct msghdr
{
void *msg_name;
socklen_t msg_namelen;
struct iovec *msg_iov;
int msg_iovlen;
void *msg_control;
socklen_t msg_controllen;
int msg_flags;
};
struct cmsghdr
{
size_t cmsg_len;
int cmsg_level;
int cmsg_type;
__extension__ unsigned char __cmsg_data [];
};
# 254 "/usr/include/bits/socket.h" 3
extern struct cmsghdr *__cmsg_nxthdr (struct msghdr *__mhdr,
struct cmsghdr *__cmsg) ;
# 281 "/usr/include/bits/socket.h" 3
enum
{
SCM_RIGHTS = 0x01,
SCM_CREDENTIALS = 0x02,
__SCM_CONNECT = 0x03
};
struct ucred
{
pid_t pid;
uid_t uid;
gid_t gid;
};
# 1 "/usr/include/asm/socket.h" 1 3
# 1 "/usr/include/asm/sockios.h" 1 3
# 5 "/usr/include/asm/socket.h" 2 3
# 303 "/usr/include/bits/socket.h" 2 3
struct linger
{
int l_onoff;
int l_linger;
};
# 213 "/usr/include/netinet/in.h" 2 3
struct sockaddr_in
{
sa_family_t sin_family;
in_port_t sin_port;
struct in_addr sin_addr;
unsigned char sin_zero[sizeof (struct sockaddr) -
(sizeof (unsigned short int)) -
sizeof (in_port_t) -
sizeof (struct in_addr)];
};
struct sockaddr_in6
{
sa_family_t sin6_family;
in_port_t sin6_port;
uint32_t sin6_flowinfo;
struct in6_addr sin6_addr;
uint32_t sin6_scope_id;
};
struct ipv6_mreq
{
struct in6_addr ipv6mr_multiaddr;
unsigned int ipv6mr_interface;
};
# 1 "/usr/include/bits/in.h" 1 3
# 66 "/usr/include/bits/in.h" 3
struct ip_opts
{
struct in_addr ip_dst;
char ip_opts[40];
};
struct ip_mreq
{
struct in_addr imr_multiaddr;
struct in_addr imr_interface;
};
struct ip_mreqn
{
struct in_addr imr_multiaddr;
struct in_addr imr_address;
int imr_ifindex;
};
struct in_pktinfo
{
int ipi_ifindex;
struct in_addr ipi_spec_dst;
struct in_addr ipi_addr;
};
# 251 "/usr/include/netinet/in.h" 2 3
# 259 "/usr/include/netinet/in.h" 3
extern uint32_t ntohl (uint32_t __netlong) __attribute__ ((__const__));
extern uint16_t ntohs (uint16_t __netshort)
__attribute__ ((__const__));
extern uint32_t htonl (uint32_t __hostlong)
__attribute__ ((__const__));
extern uint16_t htons (uint16_t __hostshort)
__attribute__ ((__const__));
# 1 "/usr/include/endian.h" 1 3
# 268 "/usr/include/netinet/in.h" 2 3
# 1 "/usr/include/bits/byteswap.h" 1 3
# 271 "/usr/include/netinet/in.h" 2 3
# 333 "/usr/include/netinet/in.h" 3
extern int bindresvport (int __sockfd, struct sockaddr_in *__sock_in) ;
extern int bindresvport6 (int __sockfd, struct sockaddr_in6 *__sock_in)
;
# 361 "/usr/include/netinet/in.h" 3
struct in6_pktinfo
{
struct in6_addr ipi6_addr;
unsigned int ipi6_ifindex;
};
# 127 "/usr/include/netinet/ip_icmp.h" 2 3
# 1 "/usr/include/netinet/ip.h" 1 3
# 22 "/usr/include/netinet/ip.h" 3
# 1 "/usr/include/features.h" 1 3
# 23 "/usr/include/netinet/ip.h" 2 3
# 1 "/usr/include/sys/types.h" 1 3
# 24 "/usr/include/netinet/ip.h" 2 3
# 1 "/usr/include/netinet/in.h" 1 3
# 26 "/usr/include/netinet/ip.h" 2 3
struct timestamp
{
u_int8_t len;
u_int8_t ptr;
unsigned int flags:4;
unsigned int overflow:4;
u_int32_t data[9];
};
struct iphdr
{
unsigned int ihl:4;
unsigned int version:4;
u_int8_t tos;
u_int16_t tot_len;
u_int16_t id;
u_int16_t frag_off;
u_int8_t ttl;
u_int8_t protocol;
u_int16_t check;
u_int32_t saddr;
u_int32_t daddr;
};
# 108 "/usr/include/netinet/ip.h" 3
struct ip
{
unsigned int ip_hl:4;
unsigned int ip_v:4;
u_int8_t ip_tos;
u_short ip_len;
u_short ip_id;
u_short ip_off;
u_int8_t ip_ttl;
u_int8_t ip_p;
u_short ip_sum;
struct in_addr ip_src, ip_dst;
};
struct ip_timestamp
{
u_int8_t ipt_code;
u_int8_t ipt_len;
u_int8_t ipt_ptr;
unsigned int ipt_flg:4;
unsigned int ipt_oflw:4;
u_int32_t data[9];
};
# 128 "/usr/include/netinet/ip_icmp.h" 2 3
struct icmp_ra_addr
{
u_int32_t ira_addr;
u_int32_t ira_preference;
};
struct icmp
{
u_int8_t icmp_type;
u_int8_t icmp_code;
u_int16_t icmp_cksum;
union
{
u_char ih_pptr;
struct in_addr ih_gwaddr;
struct ih_idseq
{
u_int16_t icd_id;
u_int16_t icd_seq;
} ih_idseq;
u_int32_t ih_void;
struct ih_pmtu
{
u_int16_t ipm_void;
u_int16_t ipm_nextmtu;
} ih_pmtu;
struct ih_rtradv
{
u_int8_t irt_num_addrs;
u_int8_t irt_wpa;
u_int16_t irt_lifetime;
} ih_rtradv;
} icmp_hun;
# 178 "/usr/include/netinet/ip_icmp.h" 3
union
{
struct
{
u_int32_t its_otime;
u_int32_t its_rtime;
u_int32_t its_ttime;
} id_ts;
struct
{
struct ip idi_ip;
} id_ip;
struct icmp_ra_addr id_radv;
u_int32_t id_mask;
u_int8_t id_data[1];
} icmp_dun;
};
# 3 "bug-85445.c" 2
int main() {
struct icmp foo;
printf("%d\n", __alignof__(foo.icmp_dun));
printf("%d\n", __alignof__(foo.icmp_dun.id_data));
return 0;
}