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libast: sfmode: tweak for 64-bit (Solaris 140-MAP_TYPE_64_Bits)

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This upstreams a Solaris patch:
https://github.com/oracle/solaris-userland/blob/master/components/ksh93/patches/140-MAP_TYPE_64_Bits.patch

src/lib/libast/sfio/sfmode.c: _sfmode():
- Do not turn off mmap on 64-bit systems.
This commit is contained in:
Martijn Dekker 2021-01-09 00:06:13 +00:00
parent aa7713c2a9
commit 37637ab6b4
1 changed files with 1 additions and 1 deletions
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2
src/lib/libast/sfio/sfmode.c
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@ -404,7 +404,7 @@ reg int local; /* a local call */
if(f->mode&SF_GETR) if(f->mode&SF_GETR)
{ f->mode &= ~SF_GETR; { f->mode &= ~SF_GETR;
#ifdef MAP_TYPE #if defined(MAP_TYPE) && (_ptr_bits < 64)
if((f->bits&SF_MMAP) && (f->tiny[0] += 1) >= (4*SF_NMAP) ) if((f->bits&SF_MMAP) && (f->tiny[0] += 1) >= (4*SF_NMAP) )
{ /* turn off mmap to avoid page faulting */ { /* turn off mmap to avoid page faulting */
sfsetbuf(f,(Void_t*)f->tiny,(size_t)SF_UNBOUND); sfsetbuf(f,(Void_t*)f->tiny,(size_t)SF_UNBOUND);