diff options
Diffstat (limited to 'gdb/config/m68k/nm-hp300bsd.h')
| -rw-r--r-- | gdb/config/m68k/nm-hp300bsd.h | 52 |
1 files changed, 21 insertions, 31 deletions
diff --git a/gdb/config/m68k/nm-hp300bsd.h b/gdb/config/m68k/nm-hp300bsd.h index 6ad7f70..b05b388 100644 --- a/gdb/config/m68k/nm-hp300bsd.h +++ b/gdb/config/m68k/nm-hp300bsd.h @@ -17,22 +17,20 @@ You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -/* This is a hack. This is only a hack. Were this a common source file, - rather than a config file specific to BSD on HP m68k's, you would have - been instructed to clean this up. As it is, clean it up if FSF's - HP's-running-ancient-BSD ever go away. */ +/* Detect whether this is 4.3 or 4.4. */ #include <errno.h> #ifdef EPROCUNAVAIL - /* BSD 4.4 alpha or better */ - /* We can attach to processes using ptrace. */ +/* BSD 4.4 alpha or better */ + +/* We can attach to processes using ptrace. */ #define ATTACH_DETACH #define PTRACE_ATTACH 10 #define PTRACE_DETACH 11 - /* The third argument of ptrace is declared as this type. */ +/* The third argument of ptrace is declared as this type. */ #define PTRACE_ARG3_TYPE caddr_t @@ -44,32 +42,25 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ (offsetof (struct user, u_kproc.kp_proc.p_md.md_regs)), 0) \ - USRSTACK - /* This is a piece of magic that is given a register number REGNO - and as BLOCKEND the address in the system of the end of the user structure - and stores in ADDR the address in the kernel or core dump - of that register. */ +/* No user structure in 4.4, registers are relative to kernel stack + which is fixed. */ +#define KERNEL_U_ADDR 0xFFF00000 + +/* FIXME: Is ONE_PROCESS_WRITETEXT still true now that the kernel has + copy-on-write? It not, move it to the 4.3-specific section below + (now it is in xm-hp300bsd.h). */ -#define REGISTER_U_ADDR(addr, blockend, regno) \ -{ \ - if (regno < PS_REGNUM) \ - addr = (int) &((struct frame *)(blockend))->f_regs[regno]; \ - else if (regno == PS_REGNUM) \ - addr = (int) &((struct frame *)(blockend))->f_stackadj; \ - else if (regno == PC_REGNUM) \ - addr = (int) &((struct frame *)(blockend))->f_pc; \ - else if (regno < FPC_REGNUM) \ - addr = (int) \ - &((struct user *)0)->u_pcb.pcb_fpregs.fpf_regs[((regno)-FP0_REGNUM)*3];\ - else if (regno == FPC_REGNUM) \ - addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpcr; \ - else if (regno == FPS_REGNUM) \ - addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpsr; \ - else \ - addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpiar; \ -} #else -/* THIS IS BSD 4.3 or something like it. */ +/* This is BSD 4.3 or something like it. */ + +/* Get kernel u area address at run-time using BSD style nlist (). */ +#define KERNEL_U_ADDR_BSD + +#endif + +/* This was once broken for 4.4, but probably because we had the wrong + KERNEL_U_ADDR. */ /* This is a piece of magic that is given a register number REGNO and as BLOCKEND the address in the system of the end of the user structure @@ -94,4 +85,3 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ else \ addr = (int) &((struct user *)0)->u_pcb.pcb_fpregs.fpf_fpiar; \ } -#endif |