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Add fields to struct sysent to support the DTrace syscall provider called

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systrace.

Another file called systrace_args.c is generated. This will be compiled
into systrace and is used to map the syscall arguments into the 64-bit
parameter array.
This commit is contained in:
John Birrell 2006-08-03 05:26:51 +00:00
parent b0777fc474
commit d80c69964b
1 changed files with 16 additions and 0 deletions
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16
sys/sys/sysent.h
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@ -35,15 +35,31 @@
#include <bsm/audit.h>
struct proc;
struct sysent;
struct thread;
struct ksiginfo;
typedef int sy_call_t(struct thread *, void *);
/* Used by the machine dependent syscall() code. */
typedef void (*systrace_probe_func_t)(u_int32_t, int, struct sysent *, void *);
/*
* Used by loaded syscalls to convert arguments to a DTrace array
* of 64-bit arguments.
*/
typedef void (*systrace_args_func_t)(void *, u_int64_t *, int *);
extern systrace_probe_func_t systrace_probe_func;
struct sysent { /* system call table */
int sy_narg; /* number of arguments */
sy_call_t *sy_call; /* implementing function */
au_event_t sy_auevent; /* audit event associated with syscall */
systrace_args_func_t sy_systrace_args_func;
/* optional argument conversion function. */
u_int32_t sy_entry; /* DTrace entry ID for systrace. */
u_int32_t sy_return; /* DTrace return ID for systrace. */
};
struct image_params;