mirror of https://github.com/acidanthera/audk.git
a1848bc088
AsciiStrCat() is deprecated / disabled under the DISABLE_NEW_DEPRECATED_INTERFACES feature test macro. The caller of CpsrString() is required to pass in "ReturnStr" with 32 CHAR8 elements. (DefaultExceptionHandler() complies with this.) "Str" is used to build "ReturnStr" gradually. Just before calling AsciiStrCat(), "Str" points to the then-terminating NUL character in "ReturnStr". The difference (Str - ReturnStr) gives the number of non-NUL characters we've written thus far, hence (32 - (Str - ReturnStr)) yields the number of remaining bytes in ReturnStr, including the ultimately terminating NUL character. Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Leif Lindholm <leif.lindholm@linaro.org> Cc: Michael Zimmermann <sigmaepsilon92@gmail.com> Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=164 Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=165 Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> |
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DefaultExceptionHandler.c |