X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Fbsd-os.c;h=1b013969f35b1baeb3d11697ff5bd6f97f33f584;hb=fb76e3acd8b8a53cdadaa65bce1d090d99e004a0;hp=0fda392511858fd43505ee101d32a06db00bf7cd;hpb=1de12891f900d156ed035a097561ecd7755a256a;p=sbcl.git

diff --git a/src/runtime/bsd-os.c b/src/runtime/bsd-os.c
index 0fda392..1b01396 100644
--- a/src/runtime/bsd-os.c
+++ b/src/runtime/bsd-os.c
@@ -41,6 +41,9 @@
 #include <signal.h>
 /* #include <sys/sysinfo.h> */
 #include "validate.h"
+#if defined LISP_FEATURE_GENCGC
+#include "gencgc-internal.h"
+#endif
 
 os_vm_size_t os_vm_page_size;
 
@@ -49,13 +52,13 @@ os_vm_size_t os_vm_page_size;
 #include <sys/sysctl.h>
 #include <string.h>
 #include <sys/stat.h> /* For the stat-family wrappers. */
-
+#include <dirent.h>   /* For the opendir()/readdir() wrappers */
+#include <sys/socket.h> /* For the socket() wrapper */
 static void netbsd_init();
 #endif /* __NetBSD__ */
 
 #ifdef __FreeBSD__
 #include <sys/sysctl.h>
-#include <osreldate.h>
 
 static void freebsd_init();
 #endif /* __FreeBSD__ */
@@ -67,26 +70,8 @@ os_init(char *argv[], char *envp[])
 
 #ifdef __NetBSD__
     netbsd_init();
-#endif /* __NetBSD__ */
-#ifdef __FreeBSD__
+#elif defined(__FreeBSD__)
     freebsd_init();
-#endif /* __FreeBSD__ */
-}
-
-int *os_context_pc_addr(os_context_t *context)
-{
-#if defined __FreeBSD__
-    return CONTEXT_ADDR_FROM_STEM(eip);
-#elif defined __OpenBSD__
-    return CONTEXT_ADDR_FROM_STEM(pc);
-#elif defined __NetBSD__
-    return CONTEXT_ADDR_FROM_STEM(EIP);
-#elif defined(LISP_FEATURE_DARWIN) && defined(LISP_FEATURE_X86)
-    return CONTEXT_ADDR_FROM_STEM(eip);
-#elif defined LISP_FEATURE_DARWIN
-    return &context->uc_mcontext->ss.srr0;
-#else
-#error unsupported BSD variant
 #endif
 }
 
@@ -172,9 +157,11 @@ is_valid_lisp_addr(os_vm_address_t addr)
        in_range_p(addr, DYNAMIC_SPACE_START  , dynamic_space_size))
         return 1;
     for_each_thread(th) {
-        if((th->control_stack_start <= addr) && (addr < th->control_stack_end))
+        if(((os_vm_address_t)th->control_stack_start <= addr) &&
+           (addr < (os_vm_address_t)th->control_stack_end))
             return 1;
-        if(in_range_p(addr, th->binding_stack_start, BINDING_STACK_SIZE))
+        if(in_range_p(addr, (lispobj)th->binding_stack_start,
+                      BINDING_STACK_SIZE))
             return 1;
     }
     return 0;
@@ -190,11 +177,22 @@ is_valid_lisp_addr(os_vm_address_t addr)
  * The GENCGC needs to be hooked into whatever signal is raised for
  * page fault on this OS.
  */
-static void
-memory_fault_handler(int signal, siginfo_t *siginfo, void *void_context)
+
+void
+memory_fault_handler(int signal, siginfo_t *siginfo, void *void_context
+#if defined(LISP_FEATURE_FREEBSD) && defined(LISP_FEATURE_X86_64)
+/* FreeBSD/amd64 stores fault address only in undocumented 4th arg. */
+                     ,void *fault_addr
+#endif
+    )
 {
     os_context_t *context = arch_os_get_context(&void_context);
+#if defined(LISP_FEATURE_FREEBSD) && defined(LISP_FEATURE_X86_64)
+    /* KLUDGE: Store fault address into si_addr for compatibilities. */
+    siginfo->si_addr = fault_addr;
+#else
     void *fault_addr = arch_get_bad_addr(signal, siginfo, context);
+#endif
 
 #if defined(LISP_FEATURE_RESTORE_TLS_SEGMENT_REGISTER_FROM_CONTEXT)
     FSHOW_SIGNAL((stderr, "/ TLS: restoring fs: %p in memory_fault_handler\n",
@@ -202,12 +200,12 @@ memory_fault_handler(int signal, siginfo_t *siginfo, void *void_context)
     os_restore_tls_segment_register(context);
 #endif
 
-    FSHOW((stderr, "Memory fault at: %p, PC: %x\n", fault_addr, *os_context_pc_addr(context)));
+    FSHOW((stderr, "Memory fault at: %p, PC: %p\n", fault_addr, *os_context_pc_addr(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));
+            lisp_memory_fault_error(context, fault_addr);
 #else
             if (!interrupt_maybe_gc_int(signal, siginfo, context)) {
                 interrupt_handle_now(signal, siginfo, context);
@@ -220,16 +218,34 @@ memory_fault_handler(int signal, siginfo_t *siginfo, void *void_context)
         }
 }
 
+#if defined(LISP_FEATURE_MACH_EXCEPTION_HANDLER)
+void
+mach_error_memory_fault_handler(int signal, siginfo_t *siginfo, void *void_context) {
+    lose("Unhandled memory fault. Exiting.");
+}
+#endif
+
 void
 os_install_interrupt_handlers(void)
 {
     SHOW("os_install_interrupt_handlers()/bsd-os/defined(GENCGC)");
+#if defined(LISP_FEATURE_MACH_EXCEPTION_HANDLER)
+    undoably_install_low_level_interrupt_handler(SIG_MEMORY_FAULT,
+                                                 mach_error_memory_fault_handler);
+#else
     undoably_install_low_level_interrupt_handler(SIG_MEMORY_FAULT,
+#ifdef LISP_FEATURE_FREEBSD
+                                                 (__siginfohandler_t *)
+#endif
                                                  memory_fault_handler);
 #ifdef SIG_MEMORY_FAULT2
     undoably_install_low_level_interrupt_handler(SIG_MEMORY_FAULT2,
+#ifdef LISP_FEATURE_FREEBSD
+                                                 (__siginfohandler_t *)
+#endif
                                                  memory_fault_handler);
 #endif
+#endif
 
 #ifdef LISP_FEATURE_SB_THREAD
     undoably_install_low_level_interrupt_handler(SIG_INTERRUPT_THREAD,
@@ -241,7 +257,6 @@ os_install_interrupt_handlers(void)
                                                  sig_stop_for_gc_handler);
 #endif
 #endif
-
     SHOW("leaving os_install_interrupt_handlers()");
 }
 
@@ -313,24 +328,44 @@ The system may fail to start.\n",
     }
 }
 
-/* The stat() routines in NetBSD's C library are compatibility
-   wrappers for some very old version of the stat buffer structure.
-   Programs must be processed by the C toolchain in order to get an
-   up-to-date definition of the stat() routine.  These wrappers are
-   used only in sb-posix, as of 2006-10-15. -- RMK */
-int _stat(const char *path, struct stat *sb) {
-  return (stat(path, sb));
+/* Various routines in NetBSD's C library are compatibility wrappers
+   for old versions. Programs must be processed by the C toolchain in
+   order to get up-to-date definitions of such routines. */
+/* The stat-family, opendir, and readdir are used only in sb-posix, as
+   of 2007-01-16. -- RMK */
+int
+_stat(const char *path, struct stat *sb)
+{
+    return stat(path, sb);
 }
-
-int _lstat(const char *path, struct stat *sb) {
-  return (lstat(path, sb));
+int
+_lstat(const char *path, struct stat *sb)
+{
+    return lstat(path, sb);
 }
-
-int _fstat(int fd, struct stat *sb) {
-  return (fstat(fd, sb));
+int
+_fstat(int fd, struct stat *sb)
+{
+    return fstat(fd, sb);
 }
 
+DIR *
+_opendir(const char *filename)
+{
+    return opendir(filename);
+}
+struct dirent *
+_readdir(DIR *dirp)
+{
+    return readdir(dirp);
+}
 
+/* Used in sb-bsd-sockets. */
+int
+_socket(int domain, int type, int protocol)
+{
+    return socket(domain, type, protocol);
+}
 #endif /* __NetBSD__ */
 
 #ifdef __FreeBSD__
@@ -363,6 +398,8 @@ static void freebsd_init()
 #define KERN_PROC_PATHNAME 12
 #endif
 
+extern int getosreldate(void);
+
 char *
 os_get_runtime_executable_path()
 {
@@ -390,7 +427,20 @@ os_get_runtime_executable_path()
         return NULL;
     return copied_string(path);
 }
-#else /* Not DARWIN or FREEBSD */
+#elif defined(LISP_FEATURE_NETBSD)
+char *
+os_get_runtime_executable_path()
+{
+    struct stat sb;
+    char *path = strdup("/proc/curproc/file");
+    if (path && ((stat(path, &sb)) == 0))
+        return path;
+    else {
+        fprintf(stderr, "Couldn't stat /proc/curproc/file; is /proc mounted?\n");
+        return NULL;
+    }
+}
+#else /* Not DARWIN or FREEBSD or NETBSD */
 char *
 os_get_runtime_executable_path()
 {