#include "validate.h"
#include "thread.h"
+#include "gc.h"
+#if defined LISP_FEATURE_GENCGC
+#include "gencgc-internal.h"
+#endif
+
size_t os_vm_page_size;
#ifdef LISP_FEATURE_SB_THREAD
-#include <linux/unistd.h>
+#include <sys/syscall.h>
+#include <unistd.h>
#include <errno.h>
/* values taken from the kernel's linux/futex.h. This header file
#define FUTEX_FD (2)
#define FUTEX_REQUEUE (3)
-#define __NR_sys_futex __NR_futex
+#define sys_futex sbcl_sys_futex
+static inline int sys_futex (void *futex, int op, int val, struct timespec *rel)
+{
+ return syscall (SYS_futex, futex, op, val, rel);
+}
+
+int
+futex_wait(int *lock_word, int oldval)
+{
+ int t= sys_futex(lock_word,FUTEX_WAIT,oldval, 0);
+ return t;
+}
-_syscall4(int,sys_futex,
- int *, futex,
- int, op,
- int, val,
- struct timespec *, rel);
+int
+futex_wake(int *lock_word, int n)
+{
+ return sys_futex(lock_word,FUTEX_WAKE,n,0);
+}
#endif
-#include "gc.h"
\f
int linux_sparc_siginfo_bug = 0;
int linux_no_threads_p = 0;
int minor_version;
char *p;
uname(&name);
- p=name.release;
+ p=name.release;
major_version = atoi(p);
p=strchr(p,'.')+1;
minor_version = atoi(p);
if (major_version<2) {
- lose("linux kernel version too old: major version=%d (can't run in version < 2.0.0)",
- major_version);
+ lose("linux kernel version too old: major version=%d (can't run in version < 2.0.0)",
+ major_version);
}
if (!(major_version>2 || minor_version >= 4)) {
#ifdef LISP_FEATURE_SPARC
- FSHOW((stderr,"linux kernel %d.%d predates 2.4;\n enabling workarounds for SPARC kernel bugs in signal handling.\n", major_version,minor_version));
- linux_sparc_siginfo_bug = 1;
+ FSHOW((stderr,"linux kernel %d.%d predates 2.4;\n enabling workarounds for SPARC kernel bugs in signal handling.\n", major_version,minor_version));
+ linux_sparc_siginfo_bug = 1;
#endif
}
#ifdef LISP_FEATURE_SB_THREAD
futex_wait(futex,-1);
if(errno==ENOSYS) linux_no_threads_p = 1;
- if(linux_no_threads_p)
- fprintf(stderr,"Linux with NPTL support (e.g. kernel 2.6 or newer) required for \nthread-enabled SBCL. Disabling thread support.\n\n");
+ if(linux_no_threads_p)
+ fprintf(stderr,"Linux with NPTL support (e.g. kernel 2.6 or newer) required for \nthread-enabled SBCL. Disabling thread support.\n\n");
#endif
os_vm_page_size = getpagesize();
}
#ifdef LISP_FEATURE_ALPHA
/* The Alpha is a 64 bit CPU. SBCL is a 32 bit application. Due to all
- * the places that assume we can get a pointer into a fixnum with no
+ * the places that assume we can get a pointer into a fixnum with no
* information loss, we have to make sure it allocates all its ram in the
* 0-2Gb region. */
os_validate(os_vm_address_t addr, os_vm_size_t len)
{
int flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE;
- os_vm_address_t actual ;
+ os_vm_address_t actual;
- if (addr)
- flags |= MAP_FIXED;
#ifdef LISP_FEATURE_ALPHA
- else {
- flags |= MAP_FIXED;
- addr=under_2gb_free_pointer;
+ if (!addr) {
+ addr=under_2gb_free_pointer;
}
-#endif
+#endif
actual = mmap(addr, len, OS_VM_PROT_ALL, flags, -1, 0);
- if (actual == MAP_FAILED || (addr && (addr!=actual))) {
- perror("mmap");
- return 0; /* caller should check this */
+ if (actual == MAP_FAILED || (addr && (addr!=actual))) {
+ perror("mmap");
+ return 0; /* caller should check this */
}
#ifdef LISP_FEATURE_ALPHA
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 actual;
actual = mmap(addr, len, OS_VM_PROT_ALL, MAP_PRIVATE | MAP_FIXED,
- fd, (off_t) offset);
+ fd, (off_t) offset);
if (actual == MAP_FAILED || (addr && (addr != actual))) {
- perror("mmap");
- lose("unexpected mmap(..) failure");
+ perror("mmap");
+ lose("unexpected mmap(..) failure");
}
return actual;
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
{
struct thread *th;
size_t ad = (size_t) addr;
-
+
if ((READ_ONLY_SPACE_START <= ad && ad < READ_ONLY_SPACE_END)
- || (STATIC_SPACE_START <= ad && ad < STATIC_SPACE_END)
+ || (STATIC_SPACE_START <= ad && ad < STATIC_SPACE_END)
#if defined LISP_FEATURE_GENCGC
- || (DYNAMIC_SPACE_START <= ad && ad < DYNAMIC_SPACE_END)
+ || (DYNAMIC_SPACE_START <= ad && ad < DYNAMIC_SPACE_END)
#else
- || (DYNAMIC_0_SPACE_START <= ad && ad < DYNAMIC_SPACE_END)
- || (DYNAMIC_1_SPACE_START <= ad && ad < DYNAMIC_SPACE_END)
+ || (DYNAMIC_0_SPACE_START <= ad && ad < DYNAMIC_0_SPACE_END)
+ || (DYNAMIC_1_SPACE_START <= ad && ad < DYNAMIC_1_SPACE_END)
#endif
- )
- return 1;
+ )
+ return 1;
for_each_thread(th) {
- if((size_t)(th->control_stack_start) <= ad
- && ad < (size_t)(th->control_stack_end))
- return 1;
- if((size_t)(th->binding_stack_start) <= ad
- && ad < (size_t)(th->binding_stack_start + BINDING_STACK_SIZE))
- return 1;
+ if((size_t)(th->control_stack_start) <= ad
+ && ad < (size_t)(th->control_stack_end))
+ return 1;
+ if((size_t)(th->binding_stack_start) <= ad
+ && ad < (size_t)(th->binding_stack_start + BINDING_STACK_SIZE))
+ return 1;
}
return 0;
}
{
os_context_t *context = arch_os_get_context(&void_context);
void* fault_addr = (void*)info->si_addr;
- if (!gencgc_handle_wp_violation(fault_addr))
- if(!handle_guard_page_triggered(context,fault_addr))
+ 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
(how we got here: when interrupting, we set bit 63 in reg_ALLOC.
At the end of the atomic section we tried to write to reg_ALLOC,
got a SIGSEGV (there's nothing mapped there) so ended up here. */
- if (addr != NULL &&
- *os_context_register_addr(context,reg_ALLOC) & (1L<<63)){
- *os_context_register_addr(context,reg_ALLOC) -= (1L<<63);
- interrupt_handle_pending(context);
- return;
+ if (addr != NULL &&
+ *os_context_register_addr(context,reg_ALLOC) & (1L<<63)){
+ *os_context_register_addr(context,reg_ALLOC) -= (1L<<63);
+ interrupt_handle_pending(context);
+ return;
}
#endif
if(!interrupt_maybe_gc(signal, info, context))
- if(!handle_guard_page_triggered(context,addr))
- interrupt_handle_now(signal, info, context);
+ if(!handle_guard_page_triggered(context,addr))
+ interrupt_handle_now(signal, info, context);
}
#endif
os_install_interrupt_handlers(void)
{
undoably_install_low_level_interrupt_handler(SIG_MEMORY_FAULT,
- sigsegv_handler);
+ sigsegv_handler);
#ifdef LISP_FEATURE_SB_THREAD
undoably_install_low_level_interrupt_handler(SIG_INTERRUPT_THREAD,
- interrupt_thread_handler);
+ interrupt_thread_handler);
undoably_install_low_level_interrupt_handler(SIG_STOP_FOR_GC,
- sig_stop_for_gc_handler);
- undoably_install_low_level_interrupt_handler(SIG_THREAD_EXIT,
- thread_exit_handler);
+ sig_stop_for_gc_handler);
#endif
}
-
-#ifdef LISP_FEATURE_SB_THREAD
-int
-futex_wait(int *lock_word, int oldval)
-{
- int t= sys_futex(lock_word,FUTEX_WAIT,oldval, 0);
- return t;
-}
-
-int
-futex_wake(int *lock_word, int n)
-{
- return sys_futex(lock_word,FUTEX_WAKE,n,0);
-}
-#endif
projects / sbcl.git / blobdiff