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// Copyright 2010 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Plan 9-specific system calls
int32 runtime·pread(int32 fd, void *buf, int32 nbytes, int64 offset);
int32 runtime·pwrite(int32 fd, void *buf, int32 nbytes, int64 offset);
int64 runtime·seek(int32 fd, int64 offset, int32 whence);
void runtime·exits(int8* msg);
intptr runtime·brk_(void*);
int32 runtime·sleep(int32 ms);
int32 runtime·rfork(int32 flags, void *stk, M *mp, G *gp, void (*fn)(void));
int32 runtime·plan9_semacquire(uint32 *addr, int32 block);
int32 runtime·plan9_tsemacquire(uint32 *addr, int32 ms);
int32 runtime·plan9_semrelease(uint32 *addr, int32 count);
int32 runtime·notify(void (*fn)(void*, int8*));
int32 runtime·noted(int32);
void runtime·sigtramp(void*, int8*);
void runtime·sigpanic(void);
void runtime·goexitsall(int8*);
void runtime·setfpmasks(void);
/* open */
enum
{
OREAD = 0,
OWRITE = 1,
ORDWR = 2,
OEXEC = 3,
OTRUNC = 16,
OCEXEC = 32,
ORCLOSE = 64,
OEXCL = 0x1000
};
/* rfork */
enum
{
RFNAMEG = (1<<0),
RFENVG = (1<<1),
RFFDG = (1<<2),
RFNOTEG = (1<<3),
RFPROC = (1<<4),
RFMEM = (1<<5),
RFNOWAIT = (1<<6),
RFCNAMEG = (1<<10),
RFCENVG = (1<<11),
RFCFDG = (1<<12),
RFREND = (1<<13),
RFNOMNT = (1<<14)
};
/* notify */
enum
{
NCONT = 0,
NDFLT = 1
};
typedef struct Tos Tos;
typedef intptr Plink;
struct Tos {
struct /* Per process profiling */
{
Plink *pp; /* known to be 0(ptr) */
Plink *next; /* known to be 4(ptr) */
Plink *last;
Plink *first;
uint32 pid;
uint32 what;
} prof;
uint64 cyclefreq; /* cycle clock frequency if there is one, 0 otherwise */
int64 kcycles; /* cycles spent in kernel */
int64 pcycles; /* cycles spent in process (kernel + user) */
uint32 pid; /* might as well put the pid here */
uint32 clock;
/* top of stack is here */
};
#define NSIG 14 /* number of signals in runtime·SigTab array */
#define ERRMAX 128 /* max length of note string */
/* Notes in runtime·sigtab that are handled by runtime·sigpanic. */
#define SIGRFAULT 2
#define SIGWFAULT 3
#define SIGINTDIV 4
#define SIGFLOAT 5
#define SIGTRAP 6
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