diff options
Diffstat (limited to 'sys/powerpc/include/frame.h')
| -rw-r--r-- | sys/powerpc/include/frame.h | 36 |
1 files changed, 29 insertions, 7 deletions
diff --git a/sys/powerpc/include/frame.h b/sys/powerpc/include/frame.h index 7ef23ef..b71ded3 100644 --- a/sys/powerpc/include/frame.h +++ b/sys/powerpc/include/frame.h @@ -50,17 +50,17 @@ struct trapframe { register_t fixreg[32]; register_t lr; - int cr; - int xer; + register_t cr; + register_t xer; register_t ctr; register_t srr0; register_t srr1; - int exc; + register_t exc; union { struct { /* dar & dsisr are only filled on a DSI trap */ register_t dar; - int dsisr; + register_t dsisr; } aim; struct { register_t dear; @@ -71,14 +71,31 @@ struct trapframe { }; /* - * This is to ensure alignment of the stackpointer + * FRAMELEN is the size of the stack region used by the low-level trap + * handler. It is the size of its data (trapframe) plus the callframe + * header (sizeof(struct callframe) - 3 register widths). It must also + * be 16-byte aligned. */ -#define FRAMELEN roundup(sizeof(struct trapframe) + 8, 16) +#define FRAMELEN roundup(sizeof(struct trapframe) + \ + sizeof(struct callframe) - 3*sizeof(register_t), 16) #define trapframe(td) ((td)->td_frame) /* * Call frame for PowerPC used during fork. */ +#ifdef __powerpc64__ +struct callframe { + register_t cf_dummy_fp; /* dummy frame pointer */ + register_t cf_cr; + register_t cf_lr; + register_t cf_compiler; + register_t cf_linkeditor; + register_t cf_toc; + register_t cf_func; + register_t cf_arg0; + register_t cf_arg1; +}; +#else struct callframe { register_t cf_dummy_fp; /* dummy frame pointer */ register_t cf_lr; /* space for link register save */ @@ -86,10 +103,15 @@ struct callframe { register_t cf_arg0; register_t cf_arg1; }; +#endif + +/* Definitions for syscalls */ +#define FIRSTARG 3 /* first arg in reg 3 */ /* Definitions for syscalls */ #define FIRSTARG 3 /* first arg in reg 3 */ #define NARGREG 8 /* 8 args in regs */ -#define MOREARGS(sp) ((caddr_t)((int)(sp) + 8)) /* more args go here */ +#define MOREARGS(sp) ((caddr_t)((uintptr_t)(sp) + \ + sizeof(struct callframe) - 3*sizeof(register_t))) /* more args go here */ #endif /* _MACHINE_FRAME_H_ */ |
