Viewing file:  struct-align-1.h (2.97 KB) -rw-r--r--
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/* Define several variants of a struct for which the alignment differs
between powerpc64-linux and powerpc64-aix. This might be interesting
for other targets as well. */
#define DESC_orig "original"
struct B1_orig {
char c;
double d;
};
struct A2_orig {
double d;
};
struct B2_orig {
char c;
struct A2_orig a2;
};
struct A3_orig {
double d;
int i;
};
struct B3_orig {
char c;
struct A3_orig a3;
};
#ifndef SKIP_ATTRIBUTE
#define DESC_p_all "packed attribute for all"
struct B1_p_all {
char c;
double d;
} __attribute__ ((packed));
struct A2_p_all {
double d;
} __attribute__ ((packed));
struct B2_p_all {
char c;
struct A2_p_all a2;
} __attribute__ ((packed));
struct A3_p_all {
double d;
int i;
} __attribute__ ((packed));
struct B3_p_all {
char c;
struct A3_p_all a3;
} __attribute__ ((packed));
#define DESC_p_inner "packed attribute for inner"
struct B1_p_inner {
char c;
double d;
};
struct A2_p_inner {
double d;
} __attribute__ ((packed));
struct B2_p_inner {
char c;
struct A2_p_inner a2;
};
struct A3_p_inner {
double d;
int i;
} __attribute__ ((packed));
struct B3_p_inner {
char c;
struct A3_p_inner a3;
};
#define DESC_p_outer "packed attribute for outer"
struct B1_p_outer {
char c;
double d;
} __attribute__ ((packed));
struct A2_p_outer {
double d;
};
struct B2_p_outer {
char c;
struct A2_p_outer a2;
} __attribute__ ((packed));
struct A3_p_outer {
double d;
int i;
};
struct B3_p_outer {
char c;
struct A3_p_outer a3;
} __attribute__ ((packed));
#define DESC_a_max "maximum useful struct alignment for all"
struct B1_a_max {
char c;
double d;
} __attribute__ ((aligned));
struct A2_a_max {
double d;
} __attribute__ ((aligned));
struct B2_a_max {
char c;
struct A2_a_max a2;
} __attribute__ ((aligned));
struct A3_a_max {
double d;
int i;
} __attribute__ ((aligned));
struct B3_a_max {
char c;
struct A3_a_max a3;
} __attribute__ ((aligned));
#define DESC_m_outer_p_inner "maximum alignment for outer, packed inner"
struct B1_m_outer_p_inner {
char c;
double d;
} __attribute__ ((aligned)) __attribute__ ((packed));
struct A2_m_outer_p_inner {
double d;
} __attribute__ ((packed));
struct B2_m_outer_p_inner {
char c;
struct A2_m_outer_p_inner a2;
} __attribute__ ((aligned));
struct A3_m_outer_p_inner {
double d;
int i;
} __attribute__ ((packed));
struct B3_m_outer_p_inner {
char c;
struct A3_m_outer_p_inner a3;
} __attribute__ ((aligned));
#define DESC_m_inner_p_outer "maximum alignment for inner, packed outer"
struct B1_m_inner_p_outer {
char c;
double d;
} __attribute__ ((aligned)) __attribute__ ((packed));
struct A2_m_inner_p_outer {
double d;
} __attribute__ ((aligned));
struct B2_m_inner_p_outer {
char c;
struct A2_m_inner_p_outer a2;
} __attribute__ ((packed));
struct A3_m_inner_p_outer {
double d;
int i;
} __attribute__ ((aligned));
struct B3_m_inner_p_outer {
char c;
struct A3_m_inner_p_outer a3;
} __attribute__ ((packed));
#endif
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