CPU_COREDUMP(9)

NAME
cpu_coredump - machine-dependent process core dump interface

SYNOPSIS
#include <sys/signalvar.h>
int
cpu_coredump(struct lwp *l, void *iocookie, struct core *chdr);
int
cpu_coredump32(struct lwp *l, void *iocookie, struct core32 *chdr);

DESCRIPTION
cpu_coredump() is the machine-dependent interface invoked by machine-independent code to dump the machine-dependent header information at the start of a process core dump. The header information primarily consists of the CPU and floating-point registers. l is the lwp structure of the thread being dumped. iocookie is an opaque pointer to be passed to coredump_write(). Information about the machine-dependent header sections are returned in chdr.

cpu_coredump() returns 0 on success and an appropriate error code on failure.

CODE REFERENCES
This section describes places within the NetBSD source tree where actual code implementing or using the machine-dependent coredump interface can be found. All pathnames are relative to /usr/src.

Process core dumps are initiated within the file sys/kern/kern_sig.c. Process core dumps for ELF NetBSD binaries are performed within the files sys/kern/core_elf32.c or sys/kern/core_elf64.c. Process core dumps for other NetBSD binaries are performed within the file sys/kern/core_netbsd.c.

SEE ALSO
coredump_write(9)