diff options
Diffstat (limited to 'usr.bin/pmdb/arch/sparc64/sparc64.c')
| -rw-r--r-- | usr.bin/pmdb/arch/sparc64/sparc64.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/usr.bin/pmdb/arch/sparc64/sparc64.c b/usr.bin/pmdb/arch/sparc64/sparc64.c new file mode 100644 index 00000000000..d4f44a56402 --- /dev/null +++ b/usr.bin/pmdb/arch/sparc64/sparc64.c @@ -0,0 +1,122 @@ +/* $PMDB: sparc64.c,v 1.6 2002/03/07 01:10:52 art Exp $ */ +/* + * Copyright (c) 2002 Artur Grabowski <art@openbsd.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL + * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/param.h> +#include <sys/ptrace.h> +#include <machine/reg.h> +#include <machine/frame.h> +#include "pmdb.h" + +static const char *md_reg_names[] = { + "%pc", "%npc", /* %y */ + "%o0", "%o1", "%o2", "%o3", "%o4", "%o5", "%o6", "%o7", + "%g0", "%g1", "%g2", "%g3", "%g4", "%g5", "%g6", "%g7", +}; + +struct md_def md_def = { md_reg_names, 18, 0 }; + +void +md_def_init(void) +{ + /* no need to do anything */ +} + +int +md_getframe(struct pstate *ps, int frame, struct md_frame *fram) +{ + struct frame64 fr; + struct reg r; + reg fp, pc; + reg *outs; + int i; + + if (ptrace(PT_GETREGS, ps->ps_pid, (caddr_t)&r, 0) != 0) + return (-1); + + if (frame == 0) { + pc = r.r_pc; + fp = r.r_out[6] + BIAS; + /* + * XXX - we need some kind of heuristics here to decide + * if the function has done a save or not and then pick + * the in registers. the problem is just that there are + * no in registers in PT_GETREGS. + */ + outs = (reg *)&r.r_out; + goto out; + } + + fp = r.r_out[6] + BIAS; + pc = r.r_out[7]; + + for (i = 1; i < frame; i++) { + /* Too low or unaligned frame pointer? */ + if (fp < 8192 || (fp & 7) != 0) + return (-1); + + if (read_from_pid(ps->ps_pid, fp, &fr, sizeof(fr)) < 0) + return -1; + fp = (unsigned long)v9next_frame((&fr)); + pc = fr.fr_pc; + + /* Too low or unaligned pc ? */ + if ((pc < 8192) || (pc & 3) != 0) + return (-1); + + outs = (reg *)&fr.fr_arg; + } + +out: + fram->pc = pc; + fram->fp = fp; + + fram->nargs = 6; /* XXX - don't know the real number */ + for (i = 0; i < 6; i++) { + fram->args[i] = fr.fr_arg[i]; + } + + return 0; +} + +int +md_getregs(struct pstate *ps, reg *regs) +{ + struct reg r; + int i; + + if (ptrace(PT_GETREGS, ps->ps_pid, (caddr_t)&r, 0) != 0) + return -1; + regs[0] = r.r_pc; + regs[1] = r.r_npc; + for (i = 0; i < 8; i++) { + regs[2 + i] = r.r_out[i]; + } + for (i = 0; i < 8; i++) { + regs[10 + i] = r.r_global[i]; + } + + return 0; +}
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