2 * This is the MIPS Linux incarnation of arch-dependent OS-dependent
3 * routines. See also "linux-os.c".
7 * This software is part of the SBCL system. See the README file for
10 * This software is derived from the CMU CL system, which was
11 * written at Carnegie Mellon University and released into the
12 * public domain. The software is in the public domain and is
13 * provided with absolutely no warranty. See the COPYING and CREDITS
14 * files for more information.
18 #include <sys/param.h>
25 #include "interrupt.h"
28 #include <sys/socket.h>
29 #include <sys/utsname.h>
31 #include <sys/types.h>
37 /* for cacheflush() */
38 #include <sys/cachectl.h>
42 size_t os_vm_page_size;
45 arch_os_thread_init(struct thread *thread)
47 #ifdef LISP_FEATURE_SB_THREAD
48 #warning "Check threading support functions"
50 return 1; /* success */
54 arch_os_thread_cleanup(struct thread *thread)
56 #ifdef LISP_FEATURE_SB_THREAD
57 #warning "Check threading support functions"
59 return 1; /* success */
62 os_context_register_t *
63 os_context_register_addr(os_context_t *context, int offset)
65 return &(((struct sigcontext *)&(context->uc_mcontext))->sc_regs[offset]);
68 os_context_register_t *
69 os_context_pc_addr(os_context_t *context)
71 /* Why do I get all the silly ports? -- CSR, 2002-08-11 */
72 return &(((struct sigcontext *)&(context->uc_mcontext))->sc_pc);
76 os_context_sigmask_addr(os_context_t *context)
78 return &(context->uc_sigmask);
82 os_context_fp_control(os_context_t *context)
84 /* FIXME: Probably do something. */
88 os_restore_fp_control(os_context_t *context)
90 /* FIXME: Probably do something. */
94 os_context_bd_cause(os_context_t *context)
96 /* We need to see if whatever happened, happened because of a
98 /* FIXME: However, I'm not convinced that the values that Linux
99 puts in this slot are actually right; specifically, attempting
100 to compile sbcl with sbcl-0.7.7.7 lead to an "infinite SIGTRAP
101 loop" where a (BREAK 16) not in a branch delay slot would have
102 CAUSEF_BD filled. So, we comment
104 #include <asm/mipsregs.h>
106 return (((struct sigcontext *) &(context->uc_mcontext))->sc_cause
109 out and return 0 always. -- CSR, 2002-09-02 */
114 os_flush_icache(os_vm_address_t address, os_vm_size_t length)
116 if (cacheflush(address, length, ICACHE) == -1)
117 perror("cacheflush");