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try to work round selinux restrictions on invocations

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git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@34660 72102866-910b-0410-8b05-ffd578937521
This commit is contained in:
Richard Frith-MacDonald 2012-01-29 16:57:06 +00:00
parent d43a73871b
commit d3b4830a65
7 changed files with 159 additions and 6 deletions
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30
Source/NSInvocation.m
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@ -73,6 +73,9 @@
{
if (size > 0)
{
#if defined(HAVE_FFI_PREP_CLOSURE_LOC)
ffi_closure_free(buffer);
#else
#if defined(HAVE_MMAP)
munmap(buffer, size);
#else
@ -84,14 +87,34 @@
#endif
NSDeallocateMemoryPages(buffer, NSPageSize());
#endif
#endif
buffer = 0;
executable = 0;
size = 0;
}
[super dealloc];
}
- (void*) executable
{
return executable;
}
- (id) initWithSize: (NSUInteger)_size
{
NSAssert(_size > 0, @"Tried to allocate zero length buffer.");
NSAssert(_size <= NSPageSize(), @"Tried to allocate more than one page.");
#if defined(HAVE_FFI_PREP_CLOSURE_LOC)
buffer = ffi_closure_alloc(_size, &executable);
if (0 == buffer)
{
executable = 0;
}
else
{
size = _size;
}
#else
#if defined(HAVE_MMAP)
#if defined(HAVE_MPROTECT)
/* We have mprotect, so we create memory as writable and change it to
@ -117,13 +140,16 @@
NSLog(@"Failed to map %"PRIuPTR
" bytes for execute: %@", _size, [NSError _last]);
buffer = 0;
executable = 0;
[self dealloc];
self = nil;
}
else
{
executable = buffer;
size = _size;
}
#endif /* USE_LIBFFI */
return self;
}
@ -132,7 +158,8 @@
*/
- (void) protect
{
#if defined(__MINGW__)
#if !defined(HAVE_FFI_PREP_CLOSURE_LOC)
#if defined(__MINGW__)
DWORD old;
if (VirtualProtect(buffer, size, PAGE_EXECUTE, &old) == 0)
{
@ -144,6 +171,7 @@
NSLog(@"Failed to protect memory as executable: %@", [NSError _last]);
}
#endif
#endif
}
@end