diff options
Diffstat (limited to 'rts/linker/SymbolExtras.c')
| -rw-r--r-- | rts/linker/SymbolExtras.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/rts/linker/SymbolExtras.c b/rts/linker/SymbolExtras.c index b5a06c662c..7f77d5120a 100644 --- a/rts/linker/SymbolExtras.c +++ b/rts/linker/SymbolExtras.c @@ -77,7 +77,9 @@ int ocAllocateExtras(ObjectCode* oc, int count, int first, int bssSize) /* N.B. We currently can't mark symbol extras as non-executable in this * case. */ size_t n = roundUpToPage(oc->fileSize); - bssSize = roundUpToAlign(bssSize, 8); + // round bssSize up to the nearest page size since we need to ensure that + // symbol_extras is aligned to a page boundary so it can be mprotect'd. + bssSize = roundUpToPage(bssSize); size_t allocated_size = n + bssSize + extras_size; void *new = mmapForLinker(allocated_size, PROT_READ | PROT_WRITE, MAP_ANONYMOUS, -1, 0); if (new) { |