Mercurial > illumos > illumos-gate
diff usr/src/cmd/sgs/include/sparc/machdep_sparc.h @ 8501:e544a13d2b41
6789925 64-bit applications with SF1_SUNW_ADDR32 require non-default starting address
| author | Rod Evans <Rod.Evans@Sun.COM> |
|---|---|
| date | Wed, 07 Jan 2009 15:27:19 -0800 |
| parents | 60e027e61b69 |
| children | 0867fc633d66 |
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--- a/usr/src/cmd/sgs/include/sparc/machdep_sparc.h Wed Jan 07 16:30:55 2009 -0500 +++ b/usr/src/cmd/sgs/include/sparc/machdep_sparc.h Wed Jan 07 15:27:19 2009 -0800 @@ -23,7 +23,7 @@ * Copyright (c) 1988 AT&T * All Rights Reserved * - * Copyright 2008 Sun Microsystems, Inc. All rights reserved. + * Copyright 2009 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. * * Global include file for all sgs SPARC machine dependent macros, constants @@ -167,15 +167,21 @@ #ifdef _ELF64 #define M_SEGM_ALIGN ELF_SPARCV9_MAXPGSZ /* - * Put 64-bit programs above 4 gigabytes to help insure correctness, - * so any 64-bit programs that truncate pointers will fault now instead of - * corrupting itself and dying mysteriously. + * Put default 64-bit programs above 4 gigabytes to help insure correctness, so + * that any 64-bit programs that truncate pointers will fault now instead of + * corrupting itself and dying mysteriously. 64-bit programs can also be + * restricted to a 32-bit address space (SF1_SUNW_ADDR32), and these programs + * provide an alternative origin. */ -#define M_SEGM_ORIGIN (Addr)0x100000000ULL /* default first segment offset */ +#define M_SEGM_ORIGIN (Addr)0x100000000ULL /* default 1st segment origin */ +#define M_SEGM_AORIGIN (Addr)0x100000ULL /* alternative 1st segment */ + /* origin */ #define M_WORD_ALIGN 8 #else #define M_SEGM_ALIGN ELF_SPARC_MAXPGSZ -#define M_SEGM_ORIGIN (Addr)0x10000 /* default first segment offset */ +#define M_SEGM_ORIGIN (Addr)0x10000 /* default 1st segment origin */ +#define M_SEGM_AORIGIN M_SEGM_ORIGIN /* alternative 1st segment */ + /* origin */ #define M_WORD_ALIGN 4 #endif