Date: Tue, 6 Jul 2004 01:37:00 GMT From: Marcel Moolenaar <marcel@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 56564 for review Message-ID: <200407060137.i661b0Nd098819@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=56564 Change 56564 by marcel@marcel_nfs on 2004/07/06 01:36:46 Implement makectx() on sparc64. Tested and working. This is a rather minimal implementation, but I guess it's enough. Note that backtraces are weird on sparc64. It's not showing the innermost frame... Affected files ... .. //depot/projects/gdb/sys/sparc64/sparc64/machdep.c#7 edit Differences ... ==== //depot/projects/gdb/sys/sparc64/sparc64/machdep.c#7 (text+ko) ==== @@ -567,6 +567,21 @@ } #endif +/* + * Construct a PCB from a trapframe. This is called from kdb_trap() where + * we want to start a backtrace from the function that caused us to enter + * the debugger. We have the context in the trapframe, but base the trace + * on the PCB. The PCB doesn't have to be perfect, as long as it contains + * enough for a backtrace. + */ +void +makectx(struct trapframe *tf, struct pcb *pcb) +{ + + pcb->pcb_pc = tf->tf_tpc; + pcb->pcb_sp = tf->tf_sp; +} + int get_mcontext(struct thread *td, mcontext_t *mc, int flags) {
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