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/* APPLE LOCAL file Macintosh alignment */
/* { dg-do run } */
/* { dg-options "-Wno-long-long" } */
/*
* GCC alignment test for alignment problems due to interactions
* between FSF and Macintosh alignment modes.
* Fred Forsman
* Apple Computer, Inc.
*/
#ifdef __LP64__
int main()
{
return 0;
}
#else /* 32-bit */
/* Check whether we are testing GCC 3 or later. */
#ifdef __GNUC__
#if __GNUC__ >= 3
#define GCC3 1
#else
#define GCC3 0
#endif
#endif
#include <stdio.h>
#include <stddef.h>
#include <string.h>
#define Q(x) #x, x
typedef unsigned char UINT8;
typedef unsigned long UINT32;
static int bad_option = 0;
static int flag_verbose = 0;
static int nbr_failures = 0;
/* === alignment modes === */
#pragma options align=power
#pragma options align=mac68k
#pragma pack(1)
typedef struct S0 {
UINT32 f1;
UINT8 f2;
} S0;
#pragma options align=reset
/* We should be back in mac68k alignment, if #pragma option align=reset
can rest a #pragma pack(n). So check for mac68k alignment. */
typedef struct S1 {
UINT32 f1;
UINT8 f2;
} S1;
#if GCC3
#pragma options align=power
#pragma options align=mac68k
//#pragma pack(push, 1)
//#pragma pack(pop)
#pragma pack(1)
#pragma pack()
/* We should be back in mac68k alignment, if #pragma pack()
can reset a #pragma pack(n). So check for mac68k alignment. */
typedef struct S2 {
UINT32 f1;
UINT8 f2;
} S2;
#endif /* GCC3 */
static void check(char * rec_name, int actual, int expected_ppc32, int expected_ia32, char * comment)
{
int expected;
#ifdef __i386__
expected = expected_ia32;
#else
expected = expected_ppc32;
#endif
if (flag_verbose || (actual != expected)) {
printf("%-20s = %2d (%2d) ", rec_name, actual, expected);
if (actual != expected) {
printf("*** FAIL");
nbr_failures++;
} else
printf(" PASS");
printf(": %s\n", comment);
}
}
static void check_option(char *option)
{
if (*option == '-') {
if (strcmp(option, "-v") == 0)
flag_verbose = 1;
else {
fprintf(stderr, "*** unrecognized option '%s'.\n", option);
bad_option = 1;
}
} else {
fprintf(stderr, "*** unrecognized option '%s'.\n", option);
bad_option = 1;
}
}
int main(int argc, char *argv[])
{
int i;
for (i = 1; i < argc; i++)
check_option(argv[i]);
if (bad_option)
return 1;
check(Q(sizeof(S0)), 5, 5, "struct with 1 long, 1 char; pack(1) mode");
check(Q(sizeof(S1)), 6, 6, "struct with 1 long, 1 char; should be mac68k mode");
#if GCC3
check(Q(sizeof(S2)), 6, 6, "struct with 1 long, 1 char; should be mac68k mode");
#endif
if (nbr_failures > 0)
return 1;
else
return 0;
}
#endif /* 32-bit */
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