6f77685609
mainly in the kernel and headers. This split based on work by Ingmar Alting <iaalting@cs.vu.nl> done for his Minix PowerPC architecture port. . kernel does not program the interrupt controller directly, do any other architecture-dependent operations, or contain assembly any more, but uses architecture-dependent functions in arch/$(ARCH)/. . architecture-dependent constants and types defined in arch/$(ARCH)/include. . <ibm/portio.h> moved to <minix/portio.h>, as they have become, for now, architecture-independent functions. . int86, sdevio, readbios, and iopenable are now i386-specific kernel calls and live in arch/i386/do_* now. . i386 arch now supports even less 86 code; e.g. mpx86.s and klib86.s have gone, and 'machine.protected' is gone (and always taken to be 1 in i386). If 86 support is to return, it should be a new architecture. . prototypes for the architecture-dependent functions defined in kernel/arch/$(ARCH)/*.c but used in kernel/ are in kernel/proto.h . /etc/make.conf included in makefiles and shell scripts that need to know the building architecture; it defines ARCH=<arch>, currently only i386. . some basic per-architecture build support outside of the kernel (lib) . in clock.c, only dequeue a process if it was ready . fixes for new include files files deleted: . mpx/klib.s - only for choosing between mpx/klib86 and -386 . klib86.s - only for 86 i386-specific files files moved (or arch-dependent stuff moved) to arch/i386/: . mpx386.s (entry point) . klib386.s . sconst.h . exception.c . protect.c . protect.h . i8269.c
95 lines
2.3 KiB
C
95 lines
2.3 KiB
C
/* The kernel call that is implemented in this file:
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* m_type: SYS_SPROFILE
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*
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* The parameters for this kernel call are:
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* m7_i1: PROF_ACTION (start/stop profiling)
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* m7_i2: PROF_MEM_SIZE (available memory for data)
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* m7_i3: PROF_FREQ (requested sample frequency)
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* m7_i4: PROF_ENDPT (endpoint of caller)
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* m7_p1: PROF_CTL_PTR (location of info struct)
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* m7_p2: PROF_MEM_PTR (location of memory for data)
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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 "../system.h"
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#if SPROFILE
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/*===========================================================================*
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* do_sprofile *
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*===========================================================================*/
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PUBLIC int do_sprofile(m_ptr)
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register message *m_ptr; /* pointer to request message */
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{
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int proc_nr, i;
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vir_bytes vir_dst;
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phys_bytes length;
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switch(m_ptr->PROF_ACTION) {
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case PROF_START:
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/* Starting profiling.
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*
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* Check if profiling is not already running. Calculate physical
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* addresses of user pointers. Reset counters. Start CMOS timer.
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* Turn on profiling.
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*/
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if (sprofiling) {
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kprintf("SYSTEM: start s-profiling: already started\n");
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return EBUSY;
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}
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isokendpt(m_ptr->PROF_ENDPT, &proc_nr);
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vir_dst = (vir_bytes) m_ptr->PROF_CTL_PTR;
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length = (phys_bytes) sizeof (int *);
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sprof_info_addr = numap_local(proc_nr, vir_dst, length);
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vir_dst = (vir_bytes) m_ptr->PROF_MEM_PTR;
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length = (phys_bytes) sizeof (char *);
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sprof_data_addr = numap_local(proc_nr, vir_dst, length);
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sprof_info.mem_used = 0;
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sprof_info.total_samples = 0;
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sprof_info.idle_samples = 0;
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sprof_info.system_samples = 0;
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sprof_info.user_samples = 0;
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sprof_mem_size = m_ptr->PROF_MEM_SIZE;
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init_profile_clock(m_ptr->PROF_FREQ);
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sprofiling = 1;
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return OK;
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case PROF_STOP:
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/* Stopping profiling.
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*
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* Check if profiling is indeed running. Turn off profiling.
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* Stop CMOS timer. Copy info struct to user process.
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*/
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if (!sprofiling) {
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kprintf("SYSTEM: stop s-profiling: not started\n");
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return EBUSY;
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}
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sprofiling = 0;
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stop_profile_clock();
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phys_copy(vir2phys((vir_bytes) &sprof_info),
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sprof_info_addr, (phys_bytes) sizeof(sprof_info));
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return OK;
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default:
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return EINVAL;
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}
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}
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#endif /* SPROFILE */
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