basic: fix raw_clone() on 32-bit sparc

The clone syscall uses the same semantics as on 64-bit. The trap number
for syscall entry is different.

Bug: https://bugs.gentoo.org/656368

diff --git a/src/basic/raw-clone.h b/src/basic/raw-clone.h
index d8a686631802f8724d978766422dd74368d7c744..d35540903ab30ec44de10ad1e7070d3d0f722f80 100644 (file)
--- a/src/basic/raw-clone.h
+++ b/src/basic/raw-clone.h
@@ -39,10 +39,10 @@ static inline pid_t raw_clone(unsigned long flags) {
         /* On s390/s390x and cris the order of the first and second arguments
          * of the raw clone() system call is reversed. */
         ret = (pid_t) syscall(__NR_clone, NULL, flags);
-#elif defined(__sparc__) && defined(__arch64__)
+#elif defined(__sparc__)
         {
                 /**
-                 * sparc64 always returns the other process id in %o0, and
+                 * sparc always returns the other process id in %o0, and
                  * a boolean flag whether this is the child or the parent in
                  * %o1. Inline assembly is needed to get the flag returned
                  * in %o1.
@@ -52,7 +52,11 @@ static inline pid_t raw_clone(unsigned long flags) {
                 asm volatile("mov %2, %%g1\n\t"
                              "mov %3, %%o0\n\t"
                              "mov 0 , %%o1\n\t"
+#if defined(__arch64__)
                              "t 0x6d\n\t"
+#else
+                             "t 0x10\n\t"
+#endif
                              "mov %%o1, %0\n\t"
                              "mov %%o0, %1" :
                              "=r"(in_child), "=r"(child_pid) :