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| author | Ian Lance Taylor <ian@gcc.gnu.org> | 2012-09-28 21:25:20 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2012-09-28 21:25:20 +0000 |
| commit | ddd06f537235203ce3e9f7a2a5e454410317995c (patch) | |
| tree | c312f5f6a11f323dc9f8d70c8f1604219de561bb /libgo/runtime/chan.c | |
| parent | e78410bf1198e3ce4a37678c991821359b0fde79 (diff) | |
| download | gcc-ddd06f537235203ce3e9f7a2a5e454410317995c.zip gcc-ddd06f537235203ce3e9f7a2a5e454410317995c.tar.gz gcc-ddd06f537235203ce3e9f7a2a5e454410317995c.tar.bz2 | |
runtime: Better detection of memory allocation request overflow.
From-SVN: r191841
Diffstat (limited to 'libgo/runtime/chan.c')
| -rw-r--r-- | libgo/runtime/chan.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libgo/runtime/chan.c b/libgo/runtime/chan.c index c8ee10e..d0a1612 100644 --- a/libgo/runtime/chan.c +++ b/libgo/runtime/chan.c @@ -3,6 +3,8 @@ // license that can be found in the LICENSE file. #include "runtime.h" +#include "arch.h" +#include "malloc.h" #include "go-type.h" #define NOSELGEN 1 @@ -88,7 +90,7 @@ runtime_makechan_c(ChanType *t, int64 hint) elem = t->__element_type; - if(hint < 0 || (int32)hint != hint || (elem->__size > 0 && (uintptr)hint > ((uintptr)-1) / elem->__size)) + if(hint < 0 || (int32)hint != hint || (elem->__size > 0 && (uintptr)hint > MaxMem / elem->__size)) runtime_panicstring("makechan: size out of range"); n = sizeof(*c); |