diff options
Diffstat (limited to 'libgo/go/runtime/runtime2.go')
| -rw-r--r-- | libgo/go/runtime/runtime2.go | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/libgo/go/runtime/runtime2.go b/libgo/go/runtime/runtime2.go index 05ce513aa9a..468d11e8e83 100644 --- a/libgo/go/runtime/runtime2.go +++ b/libgo/go/runtime/runtime2.go @@ -805,7 +805,11 @@ var ( // _ucontext_t is a Go version of the C ucontext_t type, used by getcontext. // _sizeof_ucontext_t is defined by the Makefile from <ucontext.h>. -type _ucontext_t [_sizeof_ucontext_t / unsafe.Sizeof(uintptr(0))]unsafe.Pointer +// On some systems getcontext and friends require a value that is +// aligned to a 16-byte boundary. We implement this by increasing the +// required size and picking an appropriate offset when we use the +// array. +type _ucontext_t [(_sizeof_ucontext_t + 15) / unsafe.Sizeof(unsafe.Pointer(nil))]unsafe.Pointer // traceback is used to collect stack traces from other goroutines. type traceback struct { |