versions

glibc 库, 不仅可以学习使用库函数,还可以学习函数的具体实现,是提高功力的好资料

%include <nldbl-abi.h>
%ifndef NLDBL_VERSION
% error "nldbl-abi.h must define NLDBL_VERSION"
%endif

libc {
  NLDBL_VERSION {
    # IEEE quad long double functions (older symver is for
    # IEEE double long double).
    ldexpl; copysignl; finitel; frexpl; isinfl; isnanl; modfl;
    __isinfl; __isnanl; __finitel; __signbitl;
    scalbnl;
    qecvt; qfcvt; qgcvt; qecvt_r; qfcvt_r;

    strtold; __strtold_internal; wcstold; __wcstold_internal;
    __strtold_l; strtold_l; __wcstold_l; wcstold_l;

    strfmon; __strfmon_l; strfmon_l;
    __nldbl_strfmon; __nldbl___strfmon_l; __nldbl_strfmon_l;
    __nldbl___vstrfmon; __nldbl___vstrfmon_l;

    syslog; vsyslog;
    __nldbl_syslog; __nldbl_vsyslog;
    __nldbl___syslog_chk; __nldbl___vsyslog_chk;

    # *printf* family, using IEEE quad long double
    __asprintf; asprintf; dprintf; fprintf; fwprintf; _IO_fprintf;
    _IO_printf; _IO_sprintf; _IO_vfprintf; _IO_vsprintf; obstack_printf;
    obstack_vprintf; printf; __printf_fp; printf_size; snprintf; sprintf;
    swprintf; vasprintf; vdprintf; vfprintf; vfwprintf; vprintf; vsnprintf;
    __vsnprintf; vsprintf; vswprintf; vwprintf; wprintf;

    # *printf* family, using IEEE double as long double
    # The standard functions are __REDIRECTed to these if -mlong-double-64
    __nldbl___asprintf; __nldbl_asprintf; __nldbl_dprintf; __nldbl_fprintf;
    __nldbl_fwprintf; __nldbl__IO_fprintf; __nldbl__IO_printf;
    __nldbl__IO_sprintf; __nldbl__IO_vfprintf; __nldbl__IO_vsprintf;
    __nldbl_obstack_printf; __nldbl_obstack_vprintf; __nldbl_printf;
    __nldbl___printf_fp; __nldbl_printf_size; __nldbl_snprintf;
    __nldbl_sprintf; __nldbl_swprintf; __nldbl_vasprintf; __nldbl_vdprintf;
    __nldbl_vfprintf; __nldbl_vfwprintf; __nldbl_vprintf; __nldbl_vsnprintf;
    __nldbl___vsnprintf; __nldbl_vsprintf; __nldbl_vswprintf;
    __nldbl_vwprintf; __nldbl_wprintf;

    # *scanf family, using IEEE quad long double
    _IO_sscanf; _IO_vfscanf; __vfscanf; __vsscanf; fscanf; fwscanf; scanf;
    sscanf; swscanf; vfscanf; vfwscanf; vscanf; vsscanf; vswscanf; vwscanf;
    wscanf;

    # *scanf family, using IEEE double as long double
    __nldbl__IO_sscanf; __nldbl__IO_vfscanf; __nldbl___vfscanf;
    __nldbl___vsscanf; __nldbl_fscanf; __nldbl_fwscanf; __nldbl_scanf;
    __nldbl_sscanf; __nldbl_swscanf; __nldbl_vfscanf; __nldbl_vfwscanf;
    __nldbl_vscanf; __nldbl_vsscanf; __nldbl_vswscanf; __nldbl_vwscanf;
    __nldbl_wscanf;

    # checking versions, using IEEE quad long double
    __sprintf_chk; __vsprintf_chk; __snprintf_chk; __vsnprintf_chk;
    __printf_chk; __fprintf_chk; __vprintf_chk; __vfprintf_chk;

    # checking versions, using IEEE double as long double
    __nldbl___sprintf_chk; __nldbl___vsprintf_chk; __nldbl___snprintf_chk;
    __nldbl___vsnprintf_chk; __nldbl___printf_chk; __nldbl___fprintf_chk;
    __nldbl___vprintf_chk; __nldbl___vfprintf_chk;
    __nldbl___swprintf_chk; __nldbl___vswprintf_chk; __nldbl___fwprintf_chk;
    __nldbl___wprintf_chk; __nldbl___vfwprintf_chk; __nldbl___vwprintf_chk;
  }
}
libm {
  NLDBL_VERSION {
    # IEEE quad long double functions (older symver is for
    # IEEE double as long double).
    cabsl; cargl; cimagl; conjl; creall; cacosl; cacoshl; casinl;
    catanl; catanhl; ccosl; ccoshl; casinhl; cexpl; clogl; __clog10l;
    clog10l; cpowl; cprojl; csinl; csinhl; csqrtl; ctanl; ctanhl;
    fdiml; fmal; fmaxl; fminl; ldexpl; nanl; nextafterl; nexttowardl;
    significandl; acosl; acoshl; asinl; atan2l; atanhl; coshl; dreml;
    exp10l; pow10l; exp2l; fmodl; hypotl; j0l; y0l; j1l; y1l; jnl; ynl;
    lgammal; gammal; lgammal_r; logl; log10l; log2l; powl; remainderl;
    scalbl; sinhl; sqrtl; tgammal; asinhl; atanl; cbrtl; ceill; copysignl;
    erfl; erfcl; expm1l; fabsl; finitel; floorl; frexpl; ilogbl;
    llrintl; llroundl; log1pl; logbl; lrintl; lroundl; modfl;
    nearbyintl; remquol; rintl; roundl; scalblnl; scalbnl; sinl; cosl;
    sincosl; tanl; tanhl; truncl; expl; __finitel; __signbitl;
    __fpclassifyl; nexttowardf; nexttoward; __nldbl_nexttowardf;
  }
}