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authorRabin Vincent <rabinv@axis.com>2016-08-24 09:08:21 +0200
committerEdgar E. Iglesias <edgar.iglesias@xilinx.com>2016-09-28 10:47:21 +0200
commitf278d5cbe59bc022ee67ead5f608fe0530c4e96b (patch)
treef18600c74528f27ed5031d9f83bb8332ee11eae1
parent21ce148c7ec71ee32834061355a5ecfd1a11f90f (diff)
downloadqemu-arm-f278d5cbe59bc022ee67ead5f608fe0530c4e96b.tar.gz
tests: cris: fix syscall inline asm
Add the appropriate register constraints for the inline asm for the write and exit system calls. Without the correct constraints for the write() function, correct failure messages are not printed succesfully on newer version of GCC. Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Rabin Vincent <rabinv@axis.com> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
-rw-r--r--tests/tcg/cris/sys.c26
1 files changed, 17 insertions, 9 deletions
diff --git a/tests/tcg/cris/sys.c b/tests/tcg/cris/sys.c
index 551c5dd7cb..21f08c0747 100644
--- a/tests/tcg/cris/sys.c
+++ b/tests/tcg/cris/sys.c
@@ -33,19 +33,27 @@ void *memset (void *s, int c, size_t n) {
}
void exit (int status) {
- asm volatile ("moveq 1, $r9\n" /* NR_exit. */
- "break 13\n");
+ register unsigned int callno asm ("r9") = 1; /* NR_exit */
+
+ asm volatile ("break 13\n"
+ :
+ : "r" (callno)
+ : "memory" );
while(1)
;
}
ssize_t write (int fd, const void *buf, size_t count) {
- int r;
- asm ("move.d %0, $r10\n"
- "move.d %1, $r11\n"
- "move.d %2, $r12\n"
- "moveq 4, $r9\n" /* NR_write. */
- "break 13\n" : : "r" (fd), "r" (buf), "r" (count) : "memory");
- asm ("move.d $r10, %0\n" : "=r" (r));
+ register unsigned int callno asm ("r9") = 4; /* NR_write */
+ register unsigned int r10 asm ("r10") = fd;
+ register const void *r11 asm ("r11") = buf;
+ register size_t r12 asm ("r12") = count;
+ register unsigned int r asm ("r10");
+
+ asm volatile ("break 13\n"
+ : "=r" (r)
+ : "r" (callno), "0" (r10), "r" (r11), "r" (r12)
+ : "memory");
+
return r;
}