tree 7a2b3dcb4594bc0e8d18c8fa250e7885f1b9fdb0
parent ad150be87e14159a82f3c8dce03c0c1e6263aee2
author Pali Rohár <pali.rohar@gmail.com> 1747164627 +0200
committer Martin Storsjö <martin@martin.st> 1747218801 +0300

crt: Fix missing fstat64 symbol in 64-bit msvcrt and 32-bit msvcr70/71 import libraries

On 64-bit are _fstati64 and _fstat64 functions same, both uses 64-bit
time_t and 64-bit off_t. On 32-bit is _fstati64 using 32-bit time_t.

64-bit msvcrt DLL library provides both native _fstati64 and _fstat64
symbols. And other 64-bit CRT DLL libraries (msvcr80+ and UCRT) are not
categorized as FIXED_SIZE_SYMBOLS.

32-bit msvcr70 and msvcr71 DLL libraries provides native fixed-size symbols
for 64-bit wide functions like _fstat64.

Import library for 32-bit system os msvcrt uses emulation of _fstat64
function which also defines own alias for fstat64 in file stdio/_fstat64.c.

So define fstat64 symbol as alias to _fstat64 (instead of as to _fstati64)
in crt-aliases.def.in file for all import CRT libraries which provides
native _fstat64 symbol (non-i386 msvcrt, msvcr70+ and ucrt).

Current condition for fstat64 in crt-aliases.def.in is wrong because it
does not take into account the 64-bit msvcrt case which defines the
NO_FIXED_SIZE_64_ALIAS macro saying that DLL provides the native _fstat64
symbol (and hence crt-aliases.def.in must not define _fstat64 symbol).
And there are also missing settings for NO_FIXED_SIZE_64_ALIAS in msvcr70
and msvcr71 def files as these DLL libraries provides _fstat64 function.

Signed-off-by: Martin Storsjö <martin@martin.st>