CRIS: Implement set_thread_area for CRIS.

Signed-off-by: Edgar E. Iglesias <[email protected]>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6210 c046a42c-6fe2-441c-8c8c-71466251a162

linux-user/syscall.c

@@ -5912,6 +5912,14 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
       ((CPUMIPSState *) cpu_env)->tls_value = arg1;
       ret = 0;
       break;
+#elif defined(TARGET_CRIS)
+      if (arg1 & 0xff)
+          ret = -TARGET_EINVAL;
+      else {
+          ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1;
+          ret = 0;
+      }
+      break;
 #elif defined(TARGET_I386) && defined(TARGET_ABI32)
       ret = do_set_thread_area(cpu_env, arg1);
       break;

target-cris/cpu.h

@@ -225,6 +225,11 @@ static inline void cpu_clone_regs(CPUState *env, target_ulong newsp)
 }
 #endif
 
+static inline void cpu_set_tls(CPUCRISState *env, target_ulong newtls)
+{
+	env->pregs[PR_PID] = (env->pregs[PR_PID] & 0xff) | newtls;
+}
+
 /* Support function regs.  */
 #define SFR_RW_GC_CFG      0][0
 #define SFR_RW_MM_CFG      env->pregs[PR_SRS]][0

tests/cris/Makefile

@@ -117,7 +117,7 @@ TESTCASES += check_mmap3.ctst
 TESTCASES += check_sigalrm.ctst
 TESTCASES += check_time1.ctst
 TESTCASES += check_time2.ctst
-
+TESTCASES += check_settls1.ctst
 
 TESTCASES += check_gcctorture_pr28634-1.ctst
 #TESTCASES += check_gcctorture_pr28634.ctst

tests/cris/check_settls1.c

@@ -0,0 +1,39 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <unistd.h>
+
+#include <sys/syscall.h>
+
+#ifndef SYS_set_thread_area
+#define SYS_set_thread_area 243
+#endif
+
+int main (void)
+{
+    unsigned long tp;
+    int ret;
+
+    ret = syscall (SYS_set_thread_area, 0xf0);
+    if (ret != -1 || errno != EINVAL) {
+        perror ("Invalid thread area accepted:");
+        abort();
+    }
+
+    ret = syscall (SYS_set_thread_area, 0xeddeed00);
+    if (ret != 0) {
+        perror ("Valid thread area not accepted: ");
+        abort ();
+    }
+
+    asm ("move $pid,%0" : "=r" (tp));
+    tp &= ~0xff;
+
+    if (tp != 0xeddeed00) {
+        perror ("tls2");
+        abort ();
+    }
+
+    printf ("pass\n");
+    return EXIT_SUCCESS;
+}