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Diffstat (limited to 'libc/include/sys/cdefs_elf.h')
| -rw-r--r-- | libc/include/sys/cdefs_elf.h | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/libc/include/sys/cdefs_elf.h b/libc/include/sys/cdefs_elf.h new file mode 100644 index 0000000..e051b1d --- /dev/null +++ b/libc/include/sys/cdefs_elf.h @@ -0,0 +1,152 @@ +/* $NetBSD: cdefs_elf.h,v 1.22 2005/02/26 22:25:34 perry Exp $ */ + +/* + * Copyright (c) 1995, 1996 Carnegie-Mellon University. + * All rights reserved. + * + * Author: Chris G. Demetriou + * + * Permission to use, copy, modify and distribute this software and + * its documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND + * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie the + * rights to redistribute these changes. + */ + +#ifndef _SYS_CDEFS_ELF_H_ +#define _SYS_CDEFS_ELF_H_ + +#ifdef __LEADING_UNDERSCORE +#define _C_LABEL(x) __CONCAT(_,x) +#define _C_LABEL_STRING(x) "_"x +#else +#define _C_LABEL(x) x +#define _C_LABEL_STRING(x) x +#endif + +#if __STDC__ +#define ___RENAME(x) __asm__(___STRING(_C_LABEL(x))) +#else +#ifdef __LEADING_UNDERSCORE +#define ___RENAME(x) ____RENAME(_/**/x) +#define ____RENAME(x) __asm__(___STRING(x)) +#else +#define ___RENAME(x) __asm__(___STRING(x)) +#endif +#endif + +#define __indr_reference(sym,alias) /* nada, since we do weak refs */ + +#if __STDC__ +#define __strong_alias(alias,sym) \ + __asm__(".global " _C_LABEL_STRING(#alias) "\n" \ + _C_LABEL_STRING(#alias) " = " _C_LABEL_STRING(#sym)); + +#define __weak_alias(alias,sym) \ + __asm__(".weak " _C_LABEL_STRING(#alias) "\n" \ + _C_LABEL_STRING(#alias) " = " _C_LABEL_STRING(#sym)); +#define __weak_extern(sym) \ + __asm__(".weak " _C_LABEL_STRING(#sym)); +#define __warn_references(sym,msg) \ + __asm__(".section .gnu.warning." #sym "\n\t.ascii \"" msg "\"\n\t.text"); + +#else /* !__STDC__ */ + +#ifdef __LEADING_UNDERSCORE +#define __weak_alias(alias,sym) ___weak_alias(_/**/alias,_/**/sym) +#define ___weak_alias(alias,sym) \ + __asm__(".weak alias\nalias = sym"); +#else +#define __weak_alias(alias,sym) \ + __asm__(".weak alias\nalias = sym"); +#endif +#ifdef __LEADING_UNDERSCORE +#define __weak_extern(sym) ___weak_extern(_/**/sym) +#define ___weak_extern(sym) \ + __asm__(".weak sym"); +#else +#define __weak_extern(sym) \ + __asm__(".weak sym"); +#endif +#define __warn_references(sym,msg) \ + __asm__(".section .gnu.warning.sym\n\t.ascii msg ; .text"); + +#endif /* !__STDC__ */ + +#if __STDC__ +#define __SECTIONSTRING(_sec, _str) \ + __asm__(".section " #_sec "\n\t.asciz \"" _str "\"\n\t.previous") +#else +#define __SECTIONSTRING(_sec, _str) \ + __asm__(".section _sec\n\t.asciz _str\n\t.previous") +#endif + +#define __IDSTRING(_n,_s) __SECTIONSTRING(.ident,_s) + +#define __RCSID(_s) __IDSTRING(rcsid,_s) +#define __SCCSID(_s) +#define __SCCSID2(_s) +#if 0 /* XXX userland __COPYRIGHTs have \ns in them */ +#define __COPYRIGHT(_s) __SECTIONSTRING(.copyright,_s) +#else +#define __COPYRIGHT(_s) \ + static const char copyright[] \ + __attribute__((__unused__,__section__(".copyright"))) = _s +#endif + +#define __KERNEL_RCSID(_n, _s) __RCSID(_s) +#define __KERNEL_SCCSID(_n, _s) +#if 0 /* XXX see above */ +#define __KERNEL_COPYRIGHT(_n, _s) __COPYRIGHT(_s) +#else +#define __KERNEL_COPYRIGHT(_n, _s) __SECTIONSTRING(.copyright, _s) +#endif + +#ifndef __lint__ +#define __link_set_make_entry(set, sym) \ + static void const * const __link_set_##set##_sym_##sym \ + __section("link_set_" #set) __used = &sym +#define __link_set_make_entry2(set, sym, n) \ + static void const * const __link_set_##set##_sym_##sym##_##n \ + __section("link_set_" #set) __used = &sym[n] +#else +#define __link_set_make_entry(set, sym) \ + extern void const * const __link_set_##set##_sym_##sym +#define __link_set_make_entry2(set, sym, n) \ + extern void const * const __link_set_##set##_sym_##sym##_##n +#endif /* __lint__ */ + +#define __link_set_add_text(set, sym) __link_set_make_entry(set, sym) +#define __link_set_add_rodata(set, sym) __link_set_make_entry(set, sym) +#define __link_set_add_data(set, sym) __link_set_make_entry(set, sym) +#define __link_set_add_bss(set, sym) __link_set_make_entry(set, sym) +#define __link_set_add_text2(set, sym, n) __link_set_make_entry2(set, sym, n) +#define __link_set_add_rodata2(set, sym, n) __link_set_make_entry2(set, sym, n) +#define __link_set_add_data2(set, sym, n) __link_set_make_entry2(set, sym, n) +#define __link_set_add_bss2(set, sym, n) __link_set_make_entry2(set, sym, n) + +#define __link_set_decl(set, ptype) \ + extern ptype * const __start_link_set_##set[]; \ + extern ptype * const __stop_link_set_##set[] \ + +#define __link_set_start(set) (__start_link_set_##set) +#define __link_set_end(set) (__stop_link_set_##set) + +#define __link_set_count(set) \ + (__link_set_end(set) - __link_set_start(set)) + +#endif /* !_SYS_CDEFS_ELF_H_ */ |