diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/amd64/include/reg.h | 30 | ||||
| -rw-r--r-- | sys/i386/include/reg.h | 30 |
2 files changed, 30 insertions, 30 deletions
diff --git a/sys/amd64/include/reg.h b/sys/amd64/include/reg.h index 93cc4b5..c896fe5 100644 --- a/sys/amd64/include/reg.h +++ b/sys/amd64/include/reg.h @@ -34,21 +34,23 @@ * SUCH DAMAGE. * * from: @(#)reg.h 5.5 (Berkeley) 1/18/91 - * $Id$ + * $Id: reg.h,v 1.13 1997/02/22 09:35:07 peter Exp $ */ #ifndef _MACHINE_REG_H_ #define _MACHINE_REG_H_ /* - * Location of the users' stored - * registers within appropriate frame of 'trap' and 'syscall', relative to - * base of stack frame. - * Normal usage is u.u_ar0[XX] in kernel. + * Indices for registers in `struct trapframe' and `struct regs'. + * + * This interface is deprecated. In the kernel, it is only used in FPU + * emulators to convert from register numbers encoded in instructions to + * register values. Everything else just accesses the relevant struct + * members. In userland, debuggers tend to abuse this interface since + * they don't understand that `struct regs' is a struct. I hope they have + * stopped accessing the registers in the trap frame via PT_{READ,WRITE}_U + * and we can stop supporting the user area soon. */ - -/* When referenced during a trap/exception, registers are at these offsets */ - #define tES (0) #define tDS (1) #define tEDI (2) @@ -59,9 +61,7 @@ #define tEDX (7) #define tECX (8) #define tEAX (9) - #define tERR (11) - #define tEIP (12) #define tCS (13) #define tEFLAGS (14) @@ -69,10 +69,7 @@ #define tSS (16) /* - * Registers accessible to ptrace(2) syscall for debugger - * The machine-dependent code for PT_{SET,GET}REGS needs to - * use whichever order, defined above, is correct, so that it - * is all invisible to the user. + * Register set accessible via /proc/$pid/regs and PT_{SET,GET}REGS. */ struct reg { unsigned int r_es; @@ -95,7 +92,7 @@ struct reg { }; /* - * Register set accessible via /proc/$pid/fpreg + * Register set accessible via /proc/$pid/fpregs. */ struct fpreg { /* @@ -110,6 +107,9 @@ struct fpreg { }; #ifdef KERNEL +/* + * XXX these interfaces are MI, so they should be declared in a MI place. + */ int set_regs __P((struct proc *p, struct reg *regs)); void setregs __P((struct proc *, u_long, u_long)); #endif diff --git a/sys/i386/include/reg.h b/sys/i386/include/reg.h index 93cc4b5..c896fe5 100644 --- a/sys/i386/include/reg.h +++ b/sys/i386/include/reg.h @@ -34,21 +34,23 @@ * SUCH DAMAGE. * * from: @(#)reg.h 5.5 (Berkeley) 1/18/91 - * $Id$ + * $Id: reg.h,v 1.13 1997/02/22 09:35:07 peter Exp $ */ #ifndef _MACHINE_REG_H_ #define _MACHINE_REG_H_ /* - * Location of the users' stored - * registers within appropriate frame of 'trap' and 'syscall', relative to - * base of stack frame. - * Normal usage is u.u_ar0[XX] in kernel. + * Indices for registers in `struct trapframe' and `struct regs'. + * + * This interface is deprecated. In the kernel, it is only used in FPU + * emulators to convert from register numbers encoded in instructions to + * register values. Everything else just accesses the relevant struct + * members. In userland, debuggers tend to abuse this interface since + * they don't understand that `struct regs' is a struct. I hope they have + * stopped accessing the registers in the trap frame via PT_{READ,WRITE}_U + * and we can stop supporting the user area soon. */ - -/* When referenced during a trap/exception, registers are at these offsets */ - #define tES (0) #define tDS (1) #define tEDI (2) @@ -59,9 +61,7 @@ #define tEDX (7) #define tECX (8) #define tEAX (9) - #define tERR (11) - #define tEIP (12) #define tCS (13) #define tEFLAGS (14) @@ -69,10 +69,7 @@ #define tSS (16) /* - * Registers accessible to ptrace(2) syscall for debugger - * The machine-dependent code for PT_{SET,GET}REGS needs to - * use whichever order, defined above, is correct, so that it - * is all invisible to the user. + * Register set accessible via /proc/$pid/regs and PT_{SET,GET}REGS. */ struct reg { unsigned int r_es; @@ -95,7 +92,7 @@ struct reg { }; /* - * Register set accessible via /proc/$pid/fpreg + * Register set accessible via /proc/$pid/fpregs. */ struct fpreg { /* @@ -110,6 +107,9 @@ struct fpreg { }; #ifdef KERNEL +/* + * XXX these interfaces are MI, so they should be declared in a MI place. + */ int set_regs __P((struct proc *p, struct reg *regs)); void setregs __P((struct proc *, u_long, u_long)); #endif |
