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libmain: Add extraStackOverflowHandler

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This commit is contained in:
Robert Hensing 2022-10-14 12:25:41 +02:00
parent 8196d4f4e9
commit 0d75675787
2 changed files with 25 additions and 0 deletions
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6
src/libmain/stack.cc
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@ -1,4 +1,5 @@
#include "error.hh"
#include "shared.hh"
#include <cstring>
#include <cstddef>
@ -31,6 +32,7 @@ static void sigsegvHandler(int signo, siginfo_t * info, void * ctx)
if (diff < 4096) {
char msg[] = "error: stack overflow (possible infinite recursion)\n";
[[gnu::unused]] auto res = write(2, msg, strlen(msg));
nix::extraStackOverflowHandler(info, ctx);
_exit(1); // maybe abort instead?
}
}
@ -67,5 +69,9 @@ void detectStackOverflow()
#endif
}
std::function<void(siginfo_t * info, void * ctx)> extraStackOverflowHandler(
[](siginfo_t * info, void * ctx) {
}
);
}