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Require linux 3.13 or later for chroot

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Fixes #453
This commit is contained in:
Shea Levy 2015-02-04 11:46:38 -05:00 • committed by Eelco Dolstra
parent f3a5930488
commit d66d9e8425
2 changed files with 8 additions and 2 deletions
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7
src/libstore/build.cc
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@ -1970,7 +1970,12 @@ void DerivationGoal::startBuilder()
char stack[32 * 1024];
pid_t child = clone(childEntry, stack + sizeof(stack) - 8,
CLONE_NEWPID | CLONE_NEWNS | CLONE_NEWNET | CLONE_NEWIPC | CLONE_NEWUTS | CLONE_PARENT | SIGCHLD, this);
if (child == -1) throw SysError("cloning builder process");
if (child == -1) {
if (errno == EINVAL)
throw SysError("cloning builder process (Linux chroot builds require 3.13 or later)");
else
throw SysError("cloning builder process");
}
writeFull(builderOut.writeSide, int2String(child) + "\n");
_exit(0);
});