Port recent Android changes to mips64el

* exec/config-mips.m4.in (DADDI2, DADDI3): Disable at-clobbering
by assembler macros expressly.

* exec/loader-mips64el.s: Adapt from loader-mipsel.s.

* exec/configure.ac (exec_cv_as_daddi): Properly escape reg
names.

* exec/exec.c (struct exec_jump_command, exec_0): Don't define
or set `fpu_mode' if __LP64__.

* exec/exec.h (struct exec_tracee): New field `callno'.

* exec/trace.c (process_system_call): Always record the current
system call number in TRACEE lest it should be required once it
has been overwritten upon the syscall's completion.
(seccomp_system_call): Likewise.
(after_fork): Clear `tracee->callno'.

1 files changed, 5 insertions, 4 deletions

diff --git a/exec/exec.c b/exec/exec.c
index b9c3e4ec92a..b83e34bc1b2 100644
--- a/exec/exec.c
+++ b/exec/exec.c
@@ -231,10 +231,10 @@ struct exec_jump_command
   /* The value of AT_BASE inside the aux vector.  */
   USER_WORD at_base;
 
-#if defined __mips__
+#if defined __mips__ && !defined __LP64__
   /* The FPU mode to apply.  Not used when !MIPS_NABI.  */
   USER_WORD fpu_mode;
-#endif /* defined __mips__ */
+#endif /* defined __mips__ && !defined __LP64__ */
 };
 
 
@@ -918,6 +918,7 @@ exec_0 (char *name, struct exec_tracee *tracee,
   USER_WORD header_offset;
   USER_WORD name_len, aligned_len;
   struct exec_jump_command jump;
+  /* This also encompasses !__LP64__.  */
 #if defined __mips__ && !defined MIPS_NABI
   int fpu_mode;
 #endif /* defined __mips__ && !defined MIPS_NABI */
@@ -1130,9 +1131,9 @@ exec_0 (char *name, struct exec_tracee *tracee,
     fpu_mode = FP_FRE;
 
   jump.fpu_mode = fpu_mode;
-#elif defined __mips__
+#elif defined __mips__ && !defined __LP64__
   jump.fpu_mode = 0;
-#endif /* defined __mips__ && !defined MIPS_NABI */
+#endif /* defined __mips__ && defined MIPS_NABI && !defined __LP64__ */
 
   /* The offset used for at_phdr should be that of the first
      mapping.  */