diff options
Diffstat (limited to 'gdb/config/ns32k/tm-umax.h')
| -rw-r--r-- | gdb/config/ns32k/tm-umax.h | 37 |
1 files changed, 35 insertions, 2 deletions
diff --git a/gdb/config/ns32k/tm-umax.h b/gdb/config/ns32k/tm-umax.h index db8c978..7b2a4b5 100644 --- a/gdb/config/ns32k/tm-umax.h +++ b/gdb/config/ns32k/tm-umax.h @@ -222,6 +222,12 @@ extern CORE_ADDR umax_skip_prologue (CORE_ADDR); extern CORE_ADDR ns32k_get_enter_addr (); +/* Return number of args passed to a frame. + Can return -1, meaning no way to tell. */ + +extern int umax_frame_num_args (struct frame_info *fi); +#define FRAME_NUM_ARGS(fi) (umax_frame_num_args ((fi))) + /* Return number of bytes at start of arglist that are not really args. */ #define FRAME_ARGS_SKIP 8 @@ -232,8 +238,35 @@ extern CORE_ADDR ns32k_get_enter_addr (); ways in the stack frame. sp is even more special: the address we return for it IS the sp for the next frame. */ -extern int umax_frame_num_args (struct frame_info *fi); -#define FRAME_NUM_ARGS(fi) (umax_frame_num_args ((fi))) +#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \ +{ \ + register int regmask, regnum; \ + int localcount; \ + register CORE_ADDR enter_addr; \ + register CORE_ADDR next_addr; \ + \ + memset (&(frame_saved_regs), '\0', sizeof (frame_saved_regs)); \ + enter_addr = ns32k_get_enter_addr ((frame_info)->pc); \ + if (enter_addr > 1) \ + { \ + regmask = read_memory_integer (enter_addr+1, 1) & 0xff; \ + localcount = ns32k_localcount (enter_addr); \ + next_addr = (frame_info)->frame + localcount; \ + for (regnum = 0; regnum < 8; regnum++, regmask >>= 1) \ + (frame_saved_regs).regs[regnum] = (regmask & 1) ? \ + (next_addr -= 4) : 0; \ + (frame_saved_regs).regs[SP_REGNUM] = (frame_info)->frame + 4;\ + (frame_saved_regs).regs[PC_REGNUM] = (frame_info)->frame + 4;\ + (frame_saved_regs).regs[FP_REGNUM] = \ + (read_memory_integer ((frame_info)->frame, 4));\ + } \ + else if (enter_addr == 1) \ + { \ + CORE_ADDR sp = read_register (SP_REGNUM); \ + (frame_saved_regs).regs[PC_REGNUM] = sp; \ + (frame_saved_regs).regs[SP_REGNUM] = sp + 4; \ + } \ +} /* Things needed for making the inferior call functions. */ |