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Add __packed to struct ldieee

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- We don't want any padding in struct ldieee, otherwise the offset
   might wrong in most compiler.
This commit is contained in:
Kito Cheng 2017-04-09 00:06:06 +08:00 committed by Corinna Vinschen
parent 8ae6d8003a
commit c23fbc3aed
1 changed files with 9 additions and 8 deletions
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17
newlib/libc/stdio/vfieeefp.h
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@ -35,6 +35,7 @@
#include <float.h> #include <float.h>
#include <errno.h> #include <errno.h>
#include <sys/config.h> #include <sys/config.h>
#include <sys/cdefs.h>
#ifdef __IEEE_LITTLE_ENDIAN #ifdef __IEEE_LITTLE_ENDIAN
#define IEEE_8087 #define IEEE_8087
@ -71,7 +72,7 @@ struct ldieee
unsigned manh:23; unsigned manh:23;
unsigned exp:8; unsigned exp:8;
unsigned sign:1; unsigned sign:1;
}; } __packed;
#elif LDBL_MANT_DIG == 53 #elif LDBL_MANT_DIG == 53
struct ldieee struct ldieee
{ {
@ -79,7 +80,7 @@ struct ldieee
unsigned manh:32; unsigned manh:32;
unsigned exp:11; unsigned exp:11;
unsigned sign:1; unsigned sign:1;
}; } __packed;
#elif LDBL_MANT_DIG == 64 #elif LDBL_MANT_DIG == 64
struct ldieee struct ldieee
{ {
@ -87,7 +88,7 @@ struct ldieee
unsigned manh:32; unsigned manh:32;
unsigned exp:15; unsigned exp:15;
unsigned sign:1; unsigned sign:1;
}; } __packed;
#elif LDBL_MANT_DIG > 64 #elif LDBL_MANT_DIG > 64
struct ldieee struct ldieee
{ {
@ -97,7 +98,7 @@ struct ldieee
unsigned manh:32; unsigned manh:32;
unsigned exp:15; unsigned exp:15;
unsigned sign:1; unsigned sign:1;
}; } __packed;
#endif /* LDBL_MANT_DIG */ #endif /* LDBL_MANT_DIG */
#else /* !IEEE_8087 */ #else /* !IEEE_8087 */
#if LDBL_MANT_DIG == 24 #if LDBL_MANT_DIG == 24
@ -106,7 +107,7 @@ struct ldieee
unsigned sign:1; unsigned sign:1;
unsigned exp:8; unsigned exp:8;
unsigned manh:23; unsigned manh:23;
}; } __packed;
#elif LDBL_MANT_DIG == 53 #elif LDBL_MANT_DIG == 53
struct ldieee struct ldieee
{ {
@ -114,7 +115,7 @@ struct ldieee
unsigned exp:11; unsigned exp:11;
unsigned manh:32; unsigned manh:32;
unsigned manl:20; unsigned manl:20;
}; } __packed;
#elif LDBL_MANT_DIG == 64 #elif LDBL_MANT_DIG == 64
struct ldieee struct ldieee
{ {
@ -122,7 +123,7 @@ struct ldieee
unsigned exp:15; unsigned exp:15;
unsigned manh:32; unsigned manh:32;
unsigned manl:32; unsigned manl:32;
}; } __packed;
#elif LDBL_MANT_DIG > 64 #elif LDBL_MANT_DIG > 64
struct ldieee struct ldieee
{ {
@ -132,7 +133,7 @@ struct ldieee
unsigned manl:32; unsigned manl:32;
unsigned manl2:32; unsigned manl2:32;
unsigned manl3:16; unsigned manl3:16;
}; } __packed;
#endif /* LDBL_MANT_DIG */ #endif /* LDBL_MANT_DIG */
#endif /* !IEEE_8087 */ #endif /* !IEEE_8087 */
#endif /* _WANT_IO_LONG_DOUBLE */ #endif /* _WANT_IO_LONG_DOUBLE */