40f440b8cd
- substituted the use of the m_source message field by caller->p_endpoint in kernel calls. It is the same information, just passed more intuitively. - the last dependency on m_type field is removed. - do_unused() is substituted by a check for NULL. - this pretty much removes the depency of kernel calls on the general message format. In the future this may be used to pass the kcall arguments in a different structure or registers (x86-64, ARM?) The kcall number may be passed in a register already.
49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
/* The kernel call that is implemented in this file:
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* m_type: SYS_PROFBUF
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*
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* The parameters for this kernel call are:
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* m7_p1: PROF_CTL_PTR (location of control struct)
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* m7_p2: PROF_MEM_PTR (location of profiling table)
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*
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* Changes:
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* 14 Aug, 2006 Created (Rogier Meurs)
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*/
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#include "kernel/system.h"
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/*===========================================================================*
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* do_profbuf *
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*===========================================================================*/
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PUBLIC int do_profbuf(struct proc * caller, message * m_ptr)
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{
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/* This kernel call is used by profiled system processes when Call
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* Profiling is enabled. It is called on the first execution of procentry.
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* By means of this kernel call, the profiled processes inform the kernel
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* about the location of their profiling table and the control structure
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* which is used to enable the kernel to have the tables cleared.
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*/
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int proc_nr;
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struct proc *rp;
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/* Store process name, control struct, table locations. */
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if(!isokendpt(caller->p_endpoint, &proc_nr))
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return EDEADSRCDST;
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if(cprof_procs_no >= NR_SYS_PROCS)
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return ENOSPC;
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rp = proc_addr(proc_nr);
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cprof_proc_info[cprof_procs_no].endpt = caller->p_endpoint;
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cprof_proc_info[cprof_procs_no].name = rp->p_name;
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cprof_proc_info[cprof_procs_no].ctl_v = (vir_bytes) m_ptr->PROF_CTL_PTR;
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cprof_proc_info[cprof_procs_no].buf_v = (vir_bytes) m_ptr->PROF_MEM_PTR;
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cprof_procs_no++;
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return OK;
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}
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