CPU_COREDUMP(9) | Kernel Developer's Manual | 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

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)

December 24, 2005 | NetBSD 9.0