commit 07a6ecf48feaddb4914ca8ec9603021f992ec3b9
author Richard Henderson <richard.henderson@linaro.org> Wed Nov 06 12:33:16 2019 +0100
committer Laurent Vivier <laurent@vivier.eu> Wed Nov 06 13:43:25 2019 +0100
tree 7f71c74f407533d7418e5e2f773246824a130d26
parent 608999d17c8726eb4cfa967e95f06cf026a4dde2

linux-user: Introduce cpu_clone_regs_parent

We will need a target-specific hook for adjusting registers
in the parent during clone.  Add an empty inline function for
each target, and invoke it from the proper places.

Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20191106113318.10226-11-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

linux-user/syscall.c

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 245ed31..ab9d933 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -5821,6 +5821,7 @@
         new_env = cpu_copy(env);
         /* Init regs that differ from the parent.  */
         cpu_clone_regs_child(new_env, newsp, flags);
+        cpu_clone_regs_parent(env, flags);
         new_cpu = env_cpu(new_env);
         new_cpu->opaque = ts;
         ts->bprm = parent_ts->bprm;
@@ -5917,6 +5918,7 @@
             if (flags & CLONE_CHILD_CLEARTID)
                 ts->child_tidptr = child_tidptr;
         } else {
+            cpu_clone_regs_parent(env, flags);
             fork_end(0);
         }
     }