?? struct-align-1.h
字號(hào):
/* 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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