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first_stage_init: Add SIGCHLD handler in first_stage_console

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Add a simple SIGCHLD handler to reap zombie processes given to init.

Bug: 197662257
Change-Id: I6e7930cfd7c311c454b361b9a541369ece2eb744
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>
This commit is contained in:
Elliot Berman 2021-08-24 17:20:02 -07:00
parent dba7e067dd
commit 6eb234017a
1 changed files with 3 additions and 0 deletions
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init/first_stage_console.cpp
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@ -85,7 +85,10 @@ namespace init {
void StartConsole(const std::string& cmdline) {
bool console = KernelConsolePresent(cmdline);
// Use a simple sigchld handler -- first_stage_console doesn't need to track or log zombies
const struct sigaction chld_act { .sa_handler = SIG_DFL, .sa_flags = SA_NOCLDWAIT };
sigaction(SIGCHLD, &chld_act, nullptr);
pid_t pid = fork();
if (pid != 0) {
int status;