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sparc-bsd.c
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sparc-bsd.c
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/*
* This is the SPARC BSD incarnation of arch-dependent OS-dependent
* routines. See also "linux-os.c".
*/
/*
* This software is part of the SBCL system. See the README file for
* more information.
*
* This software is derived from the CMU CL system, which was
* written at Carnegie Mellon University and released into the
* public domain. The software is in the public domain and is
* provided with absolutely no warranty. See the COPYING and CREDITS
* files for more information.
*/
#include <stdio.h>
#include <sys/param.h>
#include <sys/file.h>
#include "sbcl.h"
#include "./signal.h"
#include "os.h"
#include "arch.h"
#include "globals.h"
#include "interrupt.h"
#include "interr.h"
#include "lispregs.h"
#include <sys/socket.h>
#include <sys/utsname.h>
#include <sys/types.h>
#include <signal.h>
#include <sys/time.h>
#include <sys/stat.h>
#include <unistd.h>
#include "validate.h"
#ifdef LISP_FEATURE_SB_THREAD
#error "Define threading support functions"
#else
int arch_os_thread_init(struct thread *thread) {
return 1; /* success */
}
int arch_os_thread_cleanup(struct thread *thread) {
return 1; /* success */
}
#endif
os_context_register_t *
os_context_register_addr(os_context_t *context, int offset)
{
if (offset == 0) {
static int zero;
zero = 0;
return &zero;
} else if (offset < 16) {
return &context->uc_mcontext.__gregs[offset+3];
} else if (offset < 32) {
/* FIXME: You know, this (int *) stuff looks decidedly
dubious */
int *sp = (int*) _UC_MACHINE_SP(context);
return &(sp[offset-16]);
} else {
return 0;
}
}
os_context_register_t *
os_context_pc_addr(os_context_t *context)
{
return &(context->uc_mcontext.__gregs[_REG_PC]);
}
os_context_register_t *
os_context_npc_addr(os_context_t *context)
{
return &(context->uc_mcontext.__gregs[_REG_nPC]);
}
#ifdef SOLARIS
sigset_t *
os_context_sigmask_addr(os_context_t *context)
{
return &(context->uc_sigmask);
}
#endif
unsigned long
os_context_fp_control(os_context_t *context)
{
return (context->uc_mcontext.__fpregs.__fpu_fsr);
}
void os_flush_icache(os_vm_address_t address, os_vm_size_t length)
{
/* see sparc-assem.S */
sparc_flush_icache(address, length);
}