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ldbl-opt: Add error and error_at_line (bug 23984)

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On platforms where long double may have the same format as double
(-mlong-double-64), error and error_at_line do not take that into
account and might produce wrong output if a long double conversion is
requested by the format string ('%Lf').  This patch adds compatibility
functions for this situation and redirects calls via header magic.

Tested for powerpc, powerpc64 and powerpc64le.
This commit is contained in:
Gabriel F. T. Gomes
2018-08-08 17:26:22 -03:00
parent 90188e7d1a
commit d11086a939
17 changed files with 120 additions and 4 deletions
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12
misc/error.h
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@ -47,9 +47,15 @@ extern unsigned int error_message_count;
variable controls whether this mode is selected or not. */
extern int error_one_per_line;
#if defined __extern_always_inline && defined __va_arg_pack
# include <bits/error.h>
#ifdef __LDBL_COMPAT
# include <bits/error-ldbl.h>
#else
/* Do not inline error and error_at_line when long double has the same
size of double, because that would invalidate the redirections to the
compatibility functions. */
# if defined __extern_always_inline && defined __va_arg_pack
# include <bits/error.h>
# endif
#endif
__END_DECLS