diff options
| author | Mark Kettenis <kettenis@cvs.openbsd.org> | 2006-05-15 21:02:45 +0000 |
|---|---|---|
| committer | Mark Kettenis <kettenis@cvs.openbsd.org> | 2006-05-15 21:02:45 +0000 |
| commit | 5940aca5d72dfea8a5dcd50b8578c67f6369f380 (patch) | |
| tree | f1816db5407dd4b1b49b55c19f47a4cc0f7442d3 | |
| parent | 35e8a265b9c183213211836eca2dfdd91922cd67 (diff) | |
Implement PT_{GET|SET}FPREGS.
"looks good to me" miod@, ok drahn@
| -rw-r--r-- | sys/arch/powerpc/include/ptrace.h | 5 | ||||
| -rw-r--r-- | sys/arch/powerpc/powerpc/process_machdep.c | 38 |
2 files changed, 38 insertions, 5 deletions
diff --git a/sys/arch/powerpc/include/ptrace.h b/sys/arch/powerpc/include/ptrace.h index 7190d31d4a2..d1dd1018a33 100644 --- a/sys/arch/powerpc/include/ptrace.h +++ b/sys/arch/powerpc/include/ptrace.h @@ -1,4 +1,4 @@ -/* $OpenBSD: ptrace.h,v 1.2 1998/08/07 02:22:05 rahnds Exp $ */ +/* $OpenBSD: ptrace.h,v 1.3 2006/05/15 21:02:44 kettenis Exp $ */ /* $NetBSD: ptrace.h,v 1.7 1995/01/26 19:47:10 mycroft Exp $ */ /* @@ -39,10 +39,7 @@ #define PT_STEP (PT_FIRSTMACH + 0) #define PT_GETREGS (PT_FIRSTMACH + 1) #define PT_SETREGS (PT_FIRSTMACH + 2) - -#if NOT_SUPPORTED #define PT_GETFPREGS (PT_FIRSTMACH + 3) #define PT_SETFPREGS (PT_FIRSTMACH + 4) -#endif #endif /* !_POWERPC_PTRACE_H_ */ diff --git a/sys/arch/powerpc/powerpc/process_machdep.c b/sys/arch/powerpc/powerpc/process_machdep.c index b7815091c3d..bdba319e20f 100644 --- a/sys/arch/powerpc/powerpc/process_machdep.c +++ b/sys/arch/powerpc/powerpc/process_machdep.c @@ -1,4 +1,4 @@ -/* $OpenBSD: process_machdep.c,v 1.10 2005/10/09 14:52:12 drahn Exp $ */ +/* $OpenBSD: process_machdep.c,v 1.11 2006/05/15 21:02:44 kettenis Exp $ */ /* $NetBSD: process_machdep.c,v 1.1 1996/09/30 16:34:53 ws Exp $ */ /* @@ -69,6 +69,24 @@ process_read_regs(struct proc *p, struct reg *regs) return (0); } +int +process_read_fpregs(struct proc *p, struct fpreg *regs) +{ + struct pcb *pcb = &p->p_addr->u_pcb; + + if (!(pcb->pcb_flags & PCB_FPU)) { + bzero(regs->fpr, sizeof(regs->fpr)); + regs->fpscr = 0; + } else { + if (p == fpuproc) + save_fpu(); + bcopy(pcb->pcb_fpu.fpr, regs->fpr, sizeof(regs->fpr)); + regs->fpscr = *(u_int64_t *)&pcb->pcb_fpu.fpcsr; + } + + return (0); +} + #ifdef PTRACE /* @@ -125,4 +143,22 @@ process_write_regs(struct proc *p, struct reg *regs) return (0); } +int +process_write_fpregs(struct proc *p, struct fpreg *regs) +{ + struct pcb *pcb = &p->p_addr->u_pcb; + u_int64_t fpscr = regs->fpscr; + + if (p == fpuproc) { /* release the fpu */ + save_fpu(); + fpuproc = NULL; + } + + bcopy(regs->fpr, pcb->pcb_fpu.fpr, sizeof(regs->fpr)); + pcb->pcb_fpu.fpcsr = *(double *)&fpscr; + pcb->pcb_flags |= PCB_FPU; + + return (0); +} + #endif /* PTRACE */ |