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| author | Gabriel F. T. Gomes <gabrielftg@linux.ibm.com> | 2019-12-19 12:06:09 -0300 |
|---|---|---|
| committer | Paul E. Murphy <murphyp@linux.vnet.ibm.com> | 2020-02-17 15:28:29 -0600 |
| commit | e4a399921390509418826e8e8995d2441f29e243 (patch) | |
| tree | cc9f1df5edb43ade00aa12cc1ba1c5a662e5f1c8 /libio/bits/stdio-ldbl.h | |
| parent | 1f1c65e232878bca88fe8551318c7bc02b90ee90 (diff) | |
| download | glibc-e4a399921390509418826e8e8995d2441f29e243.zip glibc-e4a399921390509418826e8e8995d2441f29e243.tar.gz glibc-e4a399921390509418826e8e8995d2441f29e243.tar.bz2 | |
Prepare redirections for IEEE long double on powerpc64le
All functions that have a format string, which can consume a long double
argument, must have one version for each long double format supported on
a platform. On powerpc64le, these functions currently have two versions
(i.e.: long double with the same format as double, and long double with
IBM Extended Precision format). Support for a third long double format
option (i.e. long double with IEEE long double format) is being prepared
and all the aforementioned functions now have a third version (not yet
exported on the master branch, but the code is in).
For these functions to get selected (during build time), references to
them in user programs (or dependent libraries) must get redirected to
the aforementioned new versions of the functions. This patch installs
the header magic required to perform such redirections.
Notice, however, that since the redirections only happen when
__LONG_DOUBLE_USES_FLOAT128 is set to 1, and no platform (including
powerpc64le) currently does it, no redirections actually happen.
Redirections and the exporting of the new functions will happen at the
same time (when powerpc64le adds ldbl-128ibm-compat to their Implies.
Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
Reviewed-by: Paul E. Murphy <murphyp@linux.vnet.ibm.com>
Diffstat (limited to 'libio/bits/stdio-ldbl.h')
| -rw-r--r-- | libio/bits/stdio-ldbl.h | 46 |
1 files changed, 31 insertions, 15 deletions
diff --git a/libio/bits/stdio-ldbl.h b/libio/bits/stdio-ldbl.h index 6626412..3bb9f7d 100644 --- a/libio/bits/stdio-ldbl.h +++ b/libio/bits/stdio-ldbl.h @@ -27,9 +27,17 @@ __LDBL_REDIR_DECL (vfprintf) __LDBL_REDIR_DECL (vprintf) __LDBL_REDIR_DECL (vsprintf) #if !__GLIBC_USE (DEPRECATED_SCANF) +# if defined __LDBL_COMPAT __LDBL_REDIR1_DECL (fscanf, __nldbl___isoc99_fscanf) __LDBL_REDIR1_DECL (scanf, __nldbl___isoc99_scanf) __LDBL_REDIR1_DECL (sscanf, __nldbl___isoc99_sscanf) +# elif __LONG_DOUBLE_USES_FLOAT128 == 1 +__LDBL_REDIR1_DECL (fscanf, __isoc99_fscanfieee128) +__LDBL_REDIR1_DECL (scanf, __isoc99_scanfieee128) +__LDBL_REDIR1_DECL (sscanf, __isoc99_sscanfieee128) +# else +# error bits/stdlib-ldbl.h included when no ldbl redirections are required. +# endif #else __LDBL_REDIR_DECL (fscanf) __LDBL_REDIR_DECL (scanf) @@ -43,9 +51,17 @@ __LDBL_REDIR_DECL (vsnprintf) #ifdef __USE_ISOC99 # if !__GLIBC_USE (DEPRECATED_SCANF) +# if defined __LDBL_COMPAT __LDBL_REDIR1_DECL (vfscanf, __nldbl___isoc99_vfscanf) __LDBL_REDIR1_DECL (vscanf, __nldbl___isoc99_vscanf) __LDBL_REDIR1_DECL (vsscanf, __nldbl___isoc99_vsscanf) +# elif __LONG_DOUBLE_USES_FLOAT128 == 1 +__LDBL_REDIR1_DECL (vfscanf, __isoc99_vfscanfieee128) +__LDBL_REDIR1_DECL (vscanf, __isoc99_vscanfieee128) +__LDBL_REDIR1_DECL (vsscanf, __isoc99_vsscanfieee128) +# else +# error bits/stdlib-ldbl.h included when no ldbl redirections are required. +# endif # else __LDBL_REDIR_DECL (vfscanf) __LDBL_REDIR_DECL (vsscanf) @@ -60,33 +76,33 @@ __LDBL_REDIR_DECL (dprintf) #ifdef __USE_GNU __LDBL_REDIR_DECL (vasprintf) -__LDBL_REDIR_DECL (__asprintf) +__LDBL_REDIR2_DECL (asprintf) __LDBL_REDIR_DECL (asprintf) __LDBL_REDIR_DECL (obstack_printf) __LDBL_REDIR_DECL (obstack_vprintf) #endif #if __USE_FORTIFY_LEVEL > 0 && defined __fortify_function -__LDBL_REDIR_DECL (__sprintf_chk) -__LDBL_REDIR_DECL (__vsprintf_chk) +__LDBL_REDIR2_DECL (sprintf_chk) +__LDBL_REDIR2_DECL (vsprintf_chk) # if defined __USE_ISOC99 || defined __USE_UNIX98 -__LDBL_REDIR_DECL (__snprintf_chk) -__LDBL_REDIR_DECL (__vsnprintf_chk) +__LDBL_REDIR2_DECL (snprintf_chk) +__LDBL_REDIR2_DECL (vsnprintf_chk) # endif # if __USE_FORTIFY_LEVEL > 1 -__LDBL_REDIR_DECL (__fprintf_chk) -__LDBL_REDIR_DECL (__printf_chk) -__LDBL_REDIR_DECL (__vfprintf_chk) -__LDBL_REDIR_DECL (__vprintf_chk) +__LDBL_REDIR2_DECL (fprintf_chk) +__LDBL_REDIR2_DECL (printf_chk) +__LDBL_REDIR2_DECL (vfprintf_chk) +__LDBL_REDIR2_DECL (vprintf_chk) # ifdef __USE_XOPEN2K8 -__LDBL_REDIR_DECL (__dprintf_chk) -__LDBL_REDIR_DECL (__vdprintf_chk) +__LDBL_REDIR2_DECL (dprintf_chk) +__LDBL_REDIR2_DECL (vdprintf_chk) # endif # ifdef __USE_GNU -__LDBL_REDIR_DECL (__asprintf_chk) -__LDBL_REDIR_DECL (__vasprintf_chk) -__LDBL_REDIR_DECL (__obstack_printf_chk) -__LDBL_REDIR_DECL (__obstack_vprintf_chk) +__LDBL_REDIR2_DECL (asprintf_chk) +__LDBL_REDIR2_DECL (vasprintf_chk) +__LDBL_REDIR2_DECL (obstack_printf_chk) +__LDBL_REDIR2_DECL (obstack_vprintf_chk) # endif # endif #endif |