X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Fsparc-arch.c;h=3ff810e1f4fd9418458894654b7e371a8983facb;hb=9effe671fd4baacd924b58a25dac89587d38eb27;hp=9095f02bda5a16ffbd497bc31f5950ee7838c11c;hpb=f0f8bc6c184e849782fc784230f8e235d3659d5d;p=sbcl.git

diff --git a/src/runtime/sparc-arch.c b/src/runtime/sparc-arch.c
index 9095f02..3ff810e 100644
--- a/src/runtime/sparc-arch.c
+++ b/src/runtime/sparc-arch.c
@@ -101,7 +101,18 @@ unsigned char *arch_internal_error_arguments(os_context_t *context)
 
 boolean arch_pseudo_atomic_atomic(os_context_t *context)
 {
-    return ((*os_context_register_addr(context,reg_ALLOC)) & 4);
+    /* FIXME: this foreign_function_call_active test is dubious at
+     * best. If a foreign call is made in a pseudo atomic section
+     * (?) or more likely a pseudo atomic section is in a foreign
+     * call then an interrupt is executed immediately. Maybe it
+     * has to do with C code not maintaining pseudo atomic
+     * properly. MG - 2005-08-10
+     *
+     * The foreign_function_call_active used to live at each call-site
+     * to arch_pseudo_atomic_atomic, but this seems clearer.
+     * --NS 2007-05-15 */
+    return (!foreign_function_call_active)
+        && ((*os_context_register_addr(context,reg_ALLOC)) & 4);
 }
 
 void arch_set_pseudo_atomic_interrupted(os_context_t *context)
@@ -240,14 +251,9 @@ arch_handle_single_step_trap(os_context_t *context, int trap)
     arch_skip_instruction(context);
 }
 
-static void sigill_handler(int signal, siginfo_t *siginfo, void *void_context)
+static void sigill_handler(int signal, siginfo_t *siginfo,
+                           os_context_t *context)
 {
-    os_context_t *context = arch_os_get_context(&void_context);
-#ifdef LISP_FEATURE_LINUX
-    /* FIXME: Check that this is necessary -- CSR, 2002-07-15 */
-    os_restore_fp_control(context);
-#endif
-
     if ((siginfo->si_code) == ILL_ILLOPC
 #ifdef LISP_FEATURE_LINUX
         || (linux_sparc_siginfo_bug && (siginfo->si_code == 2))
@@ -284,15 +290,12 @@ static void sigill_handler(int signal, siginfo_t *siginfo, void *void_context)
     }
 }
 
-static void sigemt_handler(int signal, siginfo_t *siginfo, void *void_context)
+static void sigemt_handler(int signal, siginfo_t *siginfo,
+                           os_context_t *context)
 {
     unsigned int badinst;
     boolean subtract, immed;
     int rd, rs1, op1, rs2, op2, result;
-    os_context_t *context = arch_os_get_context(&void_context);
-#ifdef LISP_FEATURE_LINUX
-    os_restore_fp_control(context);
-#endif
 
     badinst = *(unsigned int *)os_context_pc_addr(context);
     if ((badinst >> 30) != 2 || ((badinst >> 20) & 0x1f) != 0x11) {