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| author | Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi> | 2015-12-29T22·37+0200 |
|---|---|---|
| committer | Eelco Dolstra <eelco.dolstra@logicblox.com> | 2016-01-05T12·26+0100 |
| commit | f770b9e6c54a0e149a45c458fd6c17eead00cf98 (patch) | |
| tree | 84c6bc7786d233787a8a85950fee7e7d4cf2589a | |
| parent | 71a93a5f0e742eb4856a4a5ea46b06a309bb04de (diff) | |
libstore: mmap() returns MAP_FAILED, not NULL on failure
| -rw-r--r-- | src/libstore/build.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libstore/build.cc b/src/libstore/build.cc index 4192c6c659eb..02faa5c9d873 100644 --- a/src/libstore/build.cc +++ b/src/libstore/build.cc @@ -2175,7 +2175,7 @@ void DerivationGoal::startBuilder() size_t stackSize = 1 * 1024 * 1024; char * stack = (char *) mmap(0, stackSize, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS | MAP_STACK, -1, 0); - if (!stack) throw SysError("allocating stack"); + if (stack == MAP_FAILED) throw SysError("allocating stack"); int flags = CLONE_NEWPID | CLONE_NEWNS | CLONE_NEWIPC | CLONE_NEWUTS | CLONE_PARENT | SIGCHLD; if (!fixedOutput) flags |= CLONE_NEWNET; pid_t child = clone(childEntry, stack + stackSize, flags, this); |