MINOR: atomic: don't use ; to separate instruction on aarch64.

The assembler on MacOS aarch64 interprets ; as the beginning of comments,
so it is not suitable for separating instructions in inline asm. Use \n
instead.

This should be backported to 2.3, 2.2, 2.1, 2.0 and 1.9.

(cherry picked from commit 63ee28185430cbf5bdce21f82484f7de70fe4654)
Signed-off-by: Christopher Faulet <cfaulet@haproxy.com>

diff --git a/include/haproxy/atomic.h b/include/haproxy/atomic.h
index 3f26b6a..e21d7a3 100644 (file)
--- a/include/haproxy/atomic.h
+++ b/include/haproxy/atomic.h
@@ -504,17 +504,17 @@ static __inline int __ha_cas_dw(void *target, void *compare, void *set)
        uint64_t tmp1, tmp2;
 
        __asm__ __volatile__("1:"
-                             "ldxp %0, %1, [%4];"
-                             "mov %2, %0;"
-                             "mov %3, %1;"
-                             "eor %0, %0, %5;"
-                             "eor %1, %1, %6;"
-                             "orr %1, %0, %1;"
-                             "mov %w0, #0;"
-                             "cbnz %1, 2f;"
-                             "stxp %w0, %7, %8, [%4];"
-                             "cbnz %w0, 1b;"
-                             "mov %w0, #1;"
+                             "ldxp %0, %1, [%4]\n"
+                             "mov %2, %0\n"
+                             "mov %3, %1\n"
+                             "eor %0, %0, %5\n"
+                             "eor %1, %1, %6\n"
+                             "orr %1, %0, %1\n"
+                             "mov %w0, #0\n"
+                             "cbnz %1, 2f\n"
+                             "stxp %w0, %7, %8, [%4]\n"
+                             "cbnz %w0, 1b\n"
+                             "mov %w0, #1\n"
                              "2:"
                              : "=&r" (tmp1), "=&r" (tmp2), "=&r" (value[0]), "=&r" (value[1])
                              : "r" (target), "r" (((void **)(compare))[0]), "r" (((void **)(compare))[1]), "r" (((void **)(set))[0]), "r" (((void **)(set))[1])