add pdeathsigger

executable.Dockerfile

@@ -211,6 +211,10 @@ RUN if grep -q "CentOS Linux 7" /etc/os-release ; then \
 RUN ./node_builder_glibc_env.sh
 COPY scripts/build_node_package.sh .
 RUN ./build_node_package.sh
+
+COPY scripts/pdeathsigger.c .
+RUN gcc -o pdeathsigger pdeathsigger.c
+
 # needed for hadolint
 WORKDIR /app
 USER 1001
@@ -261,6 +265,8 @@ COPY --from=async-profiler-builder-musl /tmp/async-profiler/build/lib/libasyncPr
 COPY --from=node-package-builder-musl /tmp/module_build gprofiler/resources/node/module/musl
 COPY --from=node-package-builder-glibc /tmp/module_build gprofiler/resources/node/module/glibc
 
+COPY --from=node-package-builder-glibc /tmp/pdeathsigger gprofiler/resources/pdeathsigger
+
 COPY --from=burn-builder /tmp/burn/burn gprofiler/resources/burn
 
 COPY gprofiler gprofiler

scripts/pdeathsigger.c

@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/prctl.h>
+#include <signal.h>
+
+/*
+  preexec_fn is not safe to use in the presence of threads,
+  child process could deadlock before exec is called.
+  this little shim is a workaround to avoid using preexe_fn and
+  still get the desired behavior (PR_SET_PDEATHSIG).
+*/
+int main(int argc, char *argv[]) {
+  if (argc < 2) {
+    fprintf(stderr, "Usage: %s /path/to/binary [args...]\n", argv[0]);
+    return 1;
+  }
+
+  if (prctl(PR_SET_PDEATHSIG, SIGKILL) == -1) {
+    perror("prctl");
+    return 1;
+  }
+
+  execvp(argv[1], &argv[1]);
+
+  perror("execvp");
+  return 1;
+}