diff options
Diffstat (limited to 'gdb/gdbserver')
| -rw-r--r-- | gdb/gdbserver/low-nbsd.c | 184 |
1 files changed, 166 insertions, 18 deletions
diff --git a/gdb/gdbserver/low-nbsd.c b/gdb/gdbserver/low-nbsd.c index 054017c..4aa3409 100644 --- a/gdb/gdbserver/low-nbsd.c +++ b/gdb/gdbserver/low-nbsd.c @@ -46,7 +46,30 @@ extern char **environ; extern int inferior_pid; void quit (), perror_with_name (); -#ifdef TM_I386_H +#define RF(dst, src) \ + memcpy(®isters[REGISTER_BYTE(dst)], &src, sizeof(src)) + +#define RS(src, dst) \ + memcpy(&dst, ®isters[REGISTER_BYTE(src)], sizeof(dst)) + +#ifdef __i386__ +struct env387 + { + unsigned short control; + unsigned short r0; + unsigned short status; + unsigned short r1; + unsigned short tag; + unsigned short r2; + unsigned long eip; + unsigned short code_seg; + unsigned short opcode; + unsigned long operand; + unsigned short operand_seg; + unsigned short r3; + unsigned char regs[8][10]; + }; + /* i386_register_raw_size[i] is the number of bytes of storage in the actual machine representation for register i. */ int i386_register_raw_size[MAX_NUM_REGS] = { @@ -81,8 +104,14 @@ initialize_arch() } } } +#endif /* !__i386__ */ -#endif +#ifdef __powerpc__ +static void +initialize_arch() +{ +} +#endif /* !__powerpc__ */ /* Start an inferior process and returns its pid. @@ -183,6 +212,8 @@ myresume (step, signal) perror_with_name ("ptrace"); } + +#ifdef __i386__ /* Fetch one or more registers from the inferior. REGNO == -1 to get them all. We actually fetch more than requested, when convenient, marking them as valid so we won't fetch them again. */ @@ -192,19 +223,47 @@ fetch_inferior_registers (ignored) int ignored; { struct reg inferior_registers; - struct fpreg inferior_fp_registers; + struct env387 inferior_fp_registers; ptrace (PT_GETREGS, inferior_pid, (PTRACE_ARG3_TYPE) &inferior_registers, 0); - memcpy (®isters[REGISTER_BYTE(0)], &inferior_registers, - sizeof(inferior_registers)); - -#if 0 /* def FP0_REGNUM */ ptrace (PT_GETFPREGS, inferior_pid, (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0); - memcpy (®isters[REGISTER_BYTE(FP0_REGNUM)], &inferior_fp_registers, - sizeof(inferior_fp_registers)); -#endif + + RF ( 0, inferior_registers.r_eax); + RF ( 1, inferior_registers.r_ecx); + RF ( 2, inferior_registers.r_edx); + RF ( 3, inferior_registers.r_ebx); + RF ( 4, inferior_registers.r_esp); + RF ( 5, inferior_registers.r_ebp); + RF ( 6, inferior_registers.r_esi); + RF ( 7, inferior_registers.r_edi); + RF ( 8, inferior_registers.r_eip); + RF ( 9, inferior_registers.r_eflags); + RF (10, inferior_registers.r_cs); + RF (11, inferior_registers.r_ss); + RF (12, inferior_registers.r_ds); + RF (13, inferior_registers.r_es); + RF (14, inferior_registers.r_fs); + RF (15, inferior_registers.r_gs); + + RF (FP0_REGNUM, inferior_fpregisters.regs[0]); + RF (FP0_REGNUM + 1, inferior_fpregisters.regs[1]); + RF (FP0_REGNUM + 2, inferior_fpregisters.regs[2]); + RF (FP0_REGNUM + 3, inferior_fpregisters.regs[3]); + RF (FP0_REGNUM + 4, inferior_fpregisters.regs[4]); + RF (FP0_REGNUM + 5, inferior_fpregisters.regs[5]); + RF (FP0_REGNUM + 6, inferior_fpregisters.regs[6]); + RF (FP0_REGNUM + 7, inferior_fpregisters.regs[7]); + + RF (FCTRL_REGNUM, inferior_fpregisters.control); + RF (FSTAT_REGNUM, inferior_fpregisters.status); + RF (FTAG_REGNUM, inferior_fpregisters.tag); + RF (FCS_REGNUM, inferior_fpregisters.code_seg); + RF (FCOFF_REGNUM, inferior_fpregisters.eip); + RF (FDS_REGNUM, inferior_fpregisters.operand_seg); + RF (FDOFF_REGNUM, inferior_fpregisters.operand); + RF (FOP_REGNUM, inferior_fpregisters.opcode); } /* Store our register values back into the inferior. @@ -216,20 +275,109 @@ store_inferior_registers (ignored) int ignored; { struct reg inferior_registers; - struct fpreg inferior_fp_registers; + struct env387 inferior_fp_registers; + + RS ( 0, inferior_registers.r_eax); + RS ( 1, inferior_registers.r_ecx); + RS ( 2, inferior_registers.r_edx); + RS ( 3, inferior_registers.r_ebx); + RS ( 4, inferior_registers.r_esp); + RS ( 5, inferior_registers.r_ebp); + RS ( 6, inferior_registers.r_esi); + RS ( 7, inferior_registers.r_edi); + RS ( 8, inferior_registers.r_eip); + RS ( 9, inferior_registers.r_eflags); + RS (10, inferior_registers.r_cs); + RS (11, inferior_registers.r_ss); + RS (12, inferior_registers.r_ds); + RS (13, inferior_registers.r_es); + RS (14, inferior_registers.r_fs); + RS (15, inferior_registers.r_gs); + + RS (FP0_REGNUM, inferior_fpregisters.regs[0]); + RS (FP0_REGNUM + 1, inferior_fpregisters.regs[1]); + RS (FP0_REGNUM + 2, inferior_fpregisters.regs[2]); + RS (FP0_REGNUM + 3, inferior_fpregisters.regs[3]); + RS (FP0_REGNUM + 4, inferior_fpregisters.regs[4]); + RS (FP0_REGNUM + 5, inferior_fpregisters.regs[5]); + RS (FP0_REGNUM + 6, inferior_fpregisters.regs[6]); + RS (FP0_REGNUM + 7, inferior_fpregisters.regs[7]); + + RS (FCTRL_REGNUM, inferior_fpregisters.control); + RS (FSTAT_REGNUM, inferior_fpregisters.status); + RS (FTAG_REGNUM, inferior_fpregisters.tag); + RS (FCS_REGNUM, inferior_fpregisters.code_seg); + RS (FCOFF_REGNUM, inferior_fpregisters.eip); + RS (FDS_REGNUM, inferior_fpregisters.operand_seg); + RS (FDOFF_REGNUM, inferior_fpregisters.operand); + RS (FOP_REGNUM, inferior_fpregisters.opcode); - memcpy (&inferior_registers, ®isters[REGISTER_BYTE(0)], - sizeof(inferior_registers)); ptrace (PT_SETREGS, inferior_pid, (PTRACE_ARG3_TYPE) &inferior_registers, 0); - -#if 0 /* def FP0_REGNUM */ - memcpy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)], - sizeof (inferior_fp_registers)); ptrace (PT_SETFPREGS, inferior_pid, (PTRACE_ARG3_TYPE) &inferior_fp_registers, 0); -#endif } +#endif /* !__i386__ */ + +#ifdef __powerpc__ +/* Fetch one or more registers from the inferior. REGNO == -1 to get + them all. We actually fetch more than requested, when convenient, + marking them as valid so we won't fetch them again. */ + +void +fetch_inferior_registers (regno) + int regno; +{ + struct reg inferior_registers; + struct fpreg inferior_fp_registers; + int i; + + ptrace (PT_GETREGS, inferior_pid, + (PTRACE_ARG3_TYPE) & inferior_registers, 0); + ptrace (PT_GETFPREGS, inferior_pid, + (PTRACE_ARG3_TYPE) & inferior_fp_registers, 0); + + for (i = 0; i < 32; i++) + RF (i, inferior_registers.fixreg[i]); + RF (LR_REGNUM, inferior_registers.lr); + RF (CR_REGNUM, inferior_registers.cr); + RF (XER_REGNUM, inferior_registers.xer); + RF (CTR_REGNUM, inferior_registers.ctr); + RF (PC_REGNUM, inferior_registers.pc); + + for (i = 0; i < 32; i++) + RF (FP0_REGNUM + i, inferior_fp_registers.r_regs[i]); +} + +/* Store our register values back into the inferior. + If REGNO is -1, do this for all registers. + Otherwise, REGNO specifies which register (so we can save time). */ + +void +store_inferior_registers (regno) + int regno; +{ + struct reg inferior_registers; + struct fpreg inferior_fp_registers; + int i; + + for (i = 0; i < 32; i++) + RS (i, inferior_registers.fixreg[i]); + RS (LR_REGNUM, inferior_registers.lr); + RS (CR_REGNUM, inferior_registers.cr); + RS (XER_REGNUM, inferior_registers.xer); + RS (CTR_REGNUM, inferior_registers.ctr); + RS (PC_REGNUM, inferior_registers.pc); + + for (i = 0; i < 32; i++) + RS (FP0_REGNUM + i, inferior_fp_registers.r_regs[i]); + + ptrace (PT_SETREGS, inferior_pid, + (PTRACE_ARG3_TYPE) & inferior_registers, 0); + ptrace (PT_SETFPREGS, inferior_pid, + (PTRACE_ARG3_TYPE) & inferior_fp_registers, 0); +} +#endif /* !__powerpc__ */ /* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory in the NEW_SUN_PTRACE case. |