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* fork.cc (fork): Reset child to true after fork since it may have been reset 

by fork memory copies.
This commit is contained in:
Christopher Faylor 2007-03-01 18:43:38 +00:00
parent 6e070c257c
commit e943a1a37e
2 changed files with 10 additions and 2 deletions
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5
winsup/cygwin/ChangeLog
View File

@ -1,3 +1,8 @@
2007-03-01 Christopher Faylor <me@cgf.cx>
* fork.cc (fork): Reset child to true after fork since it may have been
reset by fork memory copies.
2007-03-01 Christopher Faylor <me@cgf.cx> 2007-03-01 Christopher Faylor <me@cgf.cx>
* Makefile (DLL_OFILES): Remove ntea.o * Makefile (DLL_OFILES): Remove ntea.o

5
winsup/cygwin/fork.cc
View File

@ -94,6 +94,7 @@ public:
class hold_everything class hold_everything
{ {
public: /* DELETEME*/
bool& ischild; bool& ischild;
/* Note the order of the locks below. It is important, /* Note the order of the locks below. It is important,
to avoid races, that the lock order be preserved. to avoid races, that the lock order be preserved.
@ -620,11 +621,13 @@ fork ()
volatile char * volatile esp; volatile char * volatile esp;
__asm__ volatile ("movl %%esp,%0": "=r" (esp)); __asm__ volatile ("movl %%esp,%0": "=r" (esp));
if (!ischild) if (!ischild)
res = grouped.parent (esp); res = grouped.parent (esp);
else else
{
res = grouped.child (esp); res = grouped.child (esp);
ischild = true; /* might have been reset by fork mem copy */
}
} }
MALLOC_CHECK; MALLOC_CHECK;