[AArch64] Ensure getcontext() initializes PSTATE.

diff --git a/ports/ChangeLog.aarch64 b/ports/ChangeLog.aarch64
index 46def45..382ecdb 100644 (file)
--- a/ports/ChangeLog.aarch64
+++ b/ports/ChangeLog.aarch64
@@ -1,3 +1,9 @@
+2013-06-04  Marcus Shawcroft  <marcus.shawcroft@linaro.org>
+
+       * sysdeps/unix/sysv/linux/aarch64/getcontext.S (__getcontext):
+       Initialize pstate.
+       * sysdeps/unix/sysv/linux/aarch64/ucontext_i.sym (oPSTATE): Define.
+
 2013-05-29  Siddhesh Poyarekar  <siddhesh@redhat.com>
 
        [BZ #15465]

diff --git a/ports/sysdeps/unix/sysv/linux/aarch64/getcontext.S b/ports/sysdeps/unix/sysv/linux/aarch64/getcontext.S
index eea6867..c370957 100644 (file)
--- a/ports/sysdeps/unix/sysv/linux/aarch64/getcontext.S
+++ b/ports/sysdeps/unix/sysv/linux/aarch64/getcontext.S
@@ -53,6 +53,10 @@ ENTRY(__getcontext)
        mov     x2, sp
        str     x2, [x0, oSP]
 
+       /* Initialize the pstate.  */
+       mov     x3, #0
+       str     x3, [x0, oPSTATE]
+
        /* Figure out where to place the first context extension
           block.  */
        add     x2, x0, #oEXTENSION

diff --git a/ports/sysdeps/unix/sysv/linux/aarch64/ucontext_i.sym b/ports/sysdeps/unix/sysv/linux/aarch64/ucontext_i.sym
index 1afff78..ab3930c 100644 (file)
--- a/ports/sysdeps/unix/sysv/linux/aarch64/ucontext_i.sym
+++ b/ports/sysdeps/unix/sysv/linux/aarch64/ucontext_i.sym
@@ -37,6 +37,7 @@ STACK_FLAGS                   stack (ss_flags)
 oX0                            mcontext (regs)
 oSP                            mcontext (sp)
 oPC                            mcontext (pc)
+oPSTATE                                mcontext (pstate)
 oEXTENSION                      mcontext (__reserved)
 
 #define fpsimd_context(member)  offsetof (struct fpsimd_context, member)