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| author | Roland McGrath <roland@gnu.org> | 2002-08-27 09:23:13 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 2002-08-27 09:23:13 +0000 |
| commit | b88ac073ae7110a56b5e4537576fb2475b9fb220 (patch) | |
| tree | 9c9b04ae80891e6ed48dd27f424f861ccdbbaaf1 /include/libc-symbols.h | |
| parent | 4022d8ed0374121e9f08aaaf657276de0e7642ed (diff) | |
| download | glibc-b88ac073ae7110a56b5e4537576fb2475b9fb220.tar.gz glibc-b88ac073ae7110a56b5e4537576fb2475b9fb220.tar.xz glibc-b88ac073ae7110a56b5e4537576fb2475b9fb220.zip | |
* manual/errno.texi (Error Codes): Added ECANCELED (118 for Hurd).
* sysdeps/mach/hurd/bits/errno.h: Regenerated. * sysdeps/gnu/Versions: New file. * sysdeps/unix/sysv/linux/Versions (libc: GLIBC_2.1): Remove _sys_errlist; sys_errlist; _sys_nerr; sys_nerr; from here. * sysdeps/gnu/Makefile ($(..)sysdeps/gnu/errlist-compat.c): New target. ($(objpfx)errlist.d): Depend on $(..)sysdeps/gnu/errlist-compat.c. * sysdeps/gnu/errlist.awk: Make output define _sys_errlist_internal and _sys_nerr_internal instead of anything else. Make it include "errlist-compat.c" if [!NOT_IN_libc && !ERRLIST_NO_COMPAT]. Make it emit some asm magic if [EMIT_ERR_MAX]. * sysdeps/gnu/errlist.c: Regenerated. * sysdeps/gnu/errlist-compat.awk: New file. * sysdeps/gnu/errlist-compat.c: New file (generated). * sysdeps/mach/hurd/errlist.c (ERRLIST_NO_COMPAT): New macro. (_sys_errlist_internal): Define this as a macro for _hurd_errlist. (_sys_nerr_internal): Define this is a macro for _hurd_nerr. (SYS_ERRLIST, SYS_NERR): Macros removed. (sys_nerr, _sys_nerr): Remove these weak aliases. * sysdeps/unix/sysv/linux/errlist.c: File removed. * sysdeps/unix/sysv/linux/errlist.h: File removed. * sysdeps/unix/sysv/linux/arm/errlist.c: File removed. * include/libc-symbols.h (declare_symbol): New macro. * config.h.in (ASM_TYPE_DIRECTIVE_PREFIX): New #undef. * configure.in: New check to define it. * configure: Regenerated.
Diffstat (limited to 'include/libc-symbols.h')
| -rw-r--r-- | include/libc-symbols.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/include/libc-symbols.h b/include/libc-symbols.h index dcc4712f7d..bf77fda8d6 100644 --- a/include/libc-symbols.h +++ b/include/libc-symbols.h @@ -29,6 +29,8 @@ * HAVE_ASM_SET_DIRECTIVE if we have `.set B, A' instead of `A = B'. * ASM_GLOBAL_DIRECTIVE with `.globl' or `.global'. + * ASM_TYPE_DIRECTIVE_PREFIX with `@' or `#' or whatever for .type, + or leave it undefined if there is no .type directive. * HAVE_GNU_LD if using GNU ld, with support for weak symbols in a.out, and for symbol set and warning messages extensions in a.out and ELF. * HAVE_ELF if using ELF, which supports weak symbols using `.weak'. @@ -244,6 +246,34 @@ link_warning (name, \ "warning: " #name " is not implemented and will always fail") + +/* Declare SYMBOL to be TYPE (`function' or `object') and of SIZE bytes, + when the assembler supports such declarations (such as in ELF). + This is only necessary when defining something in assembly, or playing + funny alias games where the size should be other than what the compiler + thinks it is. */ +#define declare_symbol(symbol, type, size) \ + declare_symbol_1 (symbol, type, size) +#ifdef ASM_TYPE_DIRECTIVE_PREFIX +# ifdef __ASSEMBLER__ +# define declare_symbol_1(symbol, type, size) \ + .type C_SYMBOL_NAME (symbol), \ + declare_symbol_1_paste (ASM_TYPE_DIRECTIVE_PREFIX, type), size +# define declare_symbol_1_paste(a, b) declare_symbol_1_paste_1 (a,b) +# define declare_symbol_1_paste_1(a,b) a##b +# else /* Not __ASSEMBLER__. */ +# define declare_symbol_1(symbol, type, size) \ + asm (".type " __SYMBOL_PREFIX #symbol \ + declare_symbol_1_stringify (ASM_TYPE_DIRECTIVE_PREFIX) #type \ + "\n\t.size " __SYMBOL_PREFIX #symbol ", " #size); +# define declare_symbol_1_stringify(x) declare_symbol_1_stringify_1 (x) +# define declare_symbol_1_stringify_1(x) #x +# endif /* __ASSEMBLER__ */ +#else +# define declare_symbol_1(symbol, type, size) /* Nothing. */ +#endif + + /* */ |