block_child_signal  178 src/callproc.c   block_child_signal (&oldset);
block_child_signal  653 src/callproc.c   block_child_signal (&oldset);
block_child_signal 2245 src/process.c    block_child_signal (&oldset);
block_child_signal 6972 src/process.c    block_child_signal (&oldset);
block_child_signal 8374 src/process.c    block_child_signal (&oldset);
block_child_signal   28 src/syssignal.h extern void block_child_signal (sigset_t *);