#include <stdio.h>
#include <sys/param.h>
#include <sys/file.h>
+#include <unistd.h>
+#include <assert.h>
+#include "sbcl.h"
#include "./signal.h"
#include "os.h"
#include "arch.h"
#include "interrupt.h"
#include "interr.h"
#include "lispregs.h"
-#include "sbcl.h"
#include "thread.h"
+#include "runtime.h"
+#include "genesis/static-symbols.h"
+#include "genesis/fdefn.h"
#include <sys/types.h>
#include <signal.h>
/* #include <sys/sysinfo.h> */
#include "validate.h"
-
\f
-vm_size_t os_vm_page_size;
+os_vm_size_t os_vm_page_size;
+
+#ifdef __NetBSD__
+#include <sys/resource.h>
+#include <sys/sysctl.h>
+#include <string.h>
+
+static void netbsd_init();
+#endif /* __NetBSD__ */
void os_init(void)
{
os_vm_page_size = getpagesize();
+
+#ifdef __NetBSD__
+ netbsd_init();
+#endif /* __NetBSD__ */
}
int *os_context_pc_addr(os_context_t *context)
return CONTEXT_ADDR_FROM_STEM(eip);
#elif defined __OpenBSD__
return CONTEXT_ADDR_FROM_STEM(pc);
-#elif defined DARWIN
+#elif defined __NetBSD__
+ return CONTEXT_ADDR_FROM_STEM(EIP);
+#elif defined LISP_FEATURE_DARWIN
return &context->uc_mcontext->ss.srr0;
#else
#error unsupported BSD variant
/* (Unlike most of the other context fields that we access, the
* signal mask field is a field of the basic, outermost context
* struct itself both in FreeBSD 4.0 and in OpenBSD 2.6.) */
-#if defined __FreeBSD__ || defined DARWIN
+#if defined __FreeBSD__ || __NetBSD__ || defined LISP_FEATURE_DARWIN
return &context->uc_sigmask;
#elif defined __OpenBSD__
return &context->sc_mask;
int flags = MAP_PRIVATE | MAP_ANON;
if (addr)
- flags |= MAP_FIXED;
+ flags |= MAP_FIXED;
addr = mmap(addr, len, OS_VM_PROT_ALL, flags, -1, 0);
if (addr == MAP_FAILED) {
- perror("mmap");
- return NULL;
+ perror("mmap");
+ return NULL;
}
return addr;
os_invalidate(os_vm_address_t addr, os_vm_size_t len)
{
if (munmap(addr, len) == -1)
- perror("munmap");
+ perror("munmap");
}
os_vm_address_t
os_map(int fd, int offset, os_vm_address_t addr, os_vm_size_t len)
{
addr = mmap(addr, len,
- OS_VM_PROT_ALL,
- MAP_PRIVATE | MAP_FILE | MAP_FIXED,
- fd, (off_t) offset);
+ OS_VM_PROT_ALL,
+ MAP_PRIVATE | MAP_FILE | MAP_FIXED,
+ fd, (off_t) offset);
if (addr == MAP_FAILED) {
- perror("mmap");
- lose("unexpected mmap(..) failure");
+ perror("mmap");
+ lose("unexpected mmap(..) failure");
}
return addr;
os_protect(os_vm_address_t address, os_vm_size_t length, os_vm_prot_t prot)
{
if (mprotect(address, length, prot) == -1) {
- perror("mprotect");
+ perror("mprotect");
}
}
\f
if(in_range_p(addr, READ_ONLY_SPACE_START, READ_ONLY_SPACE_SIZE) ||
in_range_p(addr, STATIC_SPACE_START , STATIC_SPACE_SIZE) ||
in_range_p(addr, DYNAMIC_SPACE_START , DYNAMIC_SPACE_SIZE))
- return 1;
+ return 1;
for_each_thread(th) {
- if((th->control_stack_start <= addr) && (addr < th->control_stack_end))
- return 1;
- if(in_range_p(addr, th->binding_stack_start, BINDING_STACK_SIZE))
- return 1;
+ if((th->control_stack_start <= addr) && (addr < th->control_stack_end))
+ return 1;
+ if(in_range_p(addr, th->binding_stack_start, BINDING_STACK_SIZE))
+ return 1;
}
return 0;
}
{
/* The way that we extract low level information like the fault
* address is not specified by POSIX. */
-#if defined __FreeBSD__
- void *fault_addr = siginfo->si_addr;
-#elif defined __OpenBSD__
+#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__)
void *fault_addr = siginfo->si_addr;
-#elif defined DARWIN
+#elif defined LISP_FEATURE_DARWIN
void *fault_addr = siginfo->si_addr;
#else
#error unsupported BSD variant
#endif
+
os_context_t *context = arch_os_get_context(&void_context);
- if (!gencgc_handle_wp_violation(fault_addr))
- if(!handle_control_stack_guard_triggered(context,fault_addr))
- /* FIXME is this context or void_context? not that it */
- /* makes a difference currently except on linux/sparc */
- interrupt_handle_now(signal, siginfo, void_context);
+ if (!gencgc_handle_wp_violation(fault_addr))
+ if(!handle_guard_page_triggered(context,fault_addr))
+#ifdef LISP_FEATURE_C_STACK_IS_CONTROL_STACK
+ arrange_return_to_lisp_function(context, SymbolFunction(MEMORY_FAULT_ERROR));
+#else
+ interrupt_handle_now(signal, siginfo, context);
+#endif
}
void
os_install_interrupt_handlers(void)
{
SHOW("os_install_interrupt_handlers()/bsd-os/defined(GENCGC)");
undoably_install_low_level_interrupt_handler(SIG_MEMORY_FAULT,
- memory_fault_handler);
+ memory_fault_handler);
SHOW("leaving os_install_interrupt_handlers()");
}
os_context_t *context = arch_os_get_context(&void_context);
unsigned int pc = (unsigned int *)(*os_context_pc_addr(context));
os_vm_address_t addr;
-
+
addr = arch_get_bad_addr(signal,info,context);
if(!interrupt_maybe_gc(signal, info, context))
- if(!handle_control_stack_guard_triggered(context,addr))
- interrupt_handle_now(signal, info, context);
+ if(!handle_guard_page_triggered(context,addr))
+ interrupt_handle_now(signal, info, context);
+ /* Work around G5 bug; fix courtesy gbyers */
+ DARWIN_FIX_CONTEXT(context);
}
void
{
SHOW("os_install_interrupt_handlers()/bsd-os/!defined(GENCGC)");
undoably_install_low_level_interrupt_handler(SIG_MEMORY_FAULT,
- sigsegv_handler);
+ sigsegv_handler);
}
#endif /* defined GENCGC */
+
+#ifdef __NetBSD__
+static void netbsd_init()
+{
+ struct rlimit rl;
+ int mib[2], osrev;
+ size_t len;
+
+ /* Are we running on a sufficiently functional kernel? */
+ mib[0] = CTL_KERN;
+ mib[1] = KERN_OSREV;
+
+ len = sizeof(osrev);
+ sysctl(mib, 2, &osrev, &len, NULL, 0);
+
+ /* If we're older than 2.0... */
+ if (osrev < 200000000) {
+ fprintf(stderr, "osrev = %d (needed at least 200000000).\n", osrev);
+ lose("NetBSD kernel too old to run sbcl.\n");
+ }
+
+ /* NetBSD counts mmap()ed space against the process's data size limit,
+ * so yank it up. This might be a nasty thing to do? */
+ getrlimit (RLIMIT_DATA, &rl);
+ /* Amazingly for such a new port, the provenance and meaning of
+ this number are unknown. It might just mean REALLY_BIG_LIMIT,
+ or possibly it should be calculated from dynamic space size.
+ -- CSR, 2004-04-08 */
+ rl.rlim_cur = 1073741824;
+ if (setrlimit (RLIMIT_DATA, &rl) < 0) {
+ fprintf (stderr,
+ "RUNTIME WARNING: unable to raise process data size limit:\n\
+ %s.\n\
+The system may fail to start.\n",
+ strerror(errno));
+ }
+}
+#endif /* __NetBSD__ */
\f
/* threads */
#ifdef LISP_FEATURE_SB_THREAD
#error "Define threading support functions"
#else
-struct thread *arch_os_get_current_thread() {
- return all_threads;
-}
int arch_os_thread_init(struct thread *thread) {
stack_t sigstack;
#ifdef LISP_FEATURE_C_STACK_IS_CONTROL_STACK