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-- a/src/closures.c |
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++ b/src/closures.c |
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Lines 447-454
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| 447 |
dlmmap (void *start, size_t length, int prot, |
447 |
dlmmap (void *start, size_t length, int prot, |
| 448 |
int flags, int fd, off_t offset) |
448 |
int flags, int fd, off_t offset) |
| 449 |
{ |
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{ |
| 450 |
void *ptr; |
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| 451 |
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| 452 |
assert (start == NULL && length % malloc_getpagesize == 0 |
450 |
assert (start == NULL && length % malloc_getpagesize == 0 |
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&& prot == (PROT_READ | PROT_WRITE) |
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&& prot == (PROT_READ | PROT_WRITE) |
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&& flags == (MAP_PRIVATE | MAP_ANONYMOUS) |
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&& flags == (MAP_PRIVATE | MAP_ANONYMOUS) |
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Lines 457-486
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| 457 |
#if FFI_CLOSURE_TEST |
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#if FFI_CLOSURE_TEST |
| 458 |
printf ("mapping in %zi\n", length); |
456 |
printf ("mapping in %zi\n", length); |
| 459 |
#endif |
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#endif |
| 460 |
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458 |
return mmap (start, length, PROT_READ | PROT_WRITE, flags, fd, offset); |
| 461 |
if (execfd == -1 && !is_selinux_enabled ()) |
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| 462 |
{ |
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ptr = mmap (start, length, prot | PROT_EXEC, flags, fd, offset); |
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| 465 |
if (ptr != MFAIL || (errno != EPERM && errno != EACCES)) |
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/* Cool, no need to mess with separate segments. */ |
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return ptr; |
| 468 |
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| 469 |
/* If MREMAP_DUP is ever introduced and implemented, try mmap |
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with ((prot & ~PROT_WRITE) | PROT_EXEC) and mremap with |
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MREMAP_DUP and prot at this point. */ |
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} |
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| 474 |
if (execsize == 0 || execfd == -1) |
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{ |
| 476 |
pthread_mutex_lock (&open_temp_exec_file_mutex); |
| 477 |
ptr = dlmmap_locked (start, length, prot, flags, offset); |
| 478 |
pthread_mutex_unlock (&open_temp_exec_file_mutex); |
| 479 |
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| 480 |
return ptr; |
| 481 |
} |
| 482 |
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| 483 |
return dlmmap_locked (start, length, prot, flags, offset); |
| 484 |
} |
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} |
| 485 |
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460 |
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| 486 |
/* Release memory at the given address, as well as the corresponding |
461 |
/* Release memory at the given address, as well as the corresponding |
