Alexandre Oliva writes:

Here are a number of minor changes to FR-V-specific bits of the uClibc
port:

- I've adjusted the definition of _dl_mmap to cope with the fact that
  there will be a definition for an mmap2-only system.

- We don't have COPY relocs, so optimize the copy reloc-related code
  away.

- Change the page size to 16KiB, to match the ABI spec, and not a
  stale value I'd copied from a linker config file.  Oops.

- Fix error handling in clone and vfork; parts of the changes by David
  Howells <dhowells@redhat.com>

- Rearrange includes in crtreloc.c.

- Change the API of __syscall_error, to reduce code size.

- Improve __syscall_return in terms of code size, so as to enable
  tail-calling of __syscall_error, at least within libc.  Ideally,
  __syscall_error should be hidden within libc.so, but this didn't
  work because of libdl.  I haven't looked into why, and figured I'd
  leave it visible for now.

- Rename enumerators and macros in sys/ucontext.h to reduce namespace
  pollution.

1 files changed, 6 insertions, 4 deletions

diff --git a/libc/sysdeps/linux/frv/clone.S b/libc/sysdeps/linux/frv/clone.S
index 2e3c6b742..f835f0ba2 100644
--- a/libc/sysdeps/linux/frv/clone.S
+++ b/libc/sysdeps/linux/frv/clone.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2003 Free Software Foudnation, Inc.
+/* Copyright (C) 2003, 2004 Free Software Foudnation, Inc.
    This file is part of the GNU C Library.
    Contributed by Alexandre Oliva <aoliva@redhat.com>, 2003.
 
@@ -41,9 +41,11 @@ __clone:
 	setlos	#__NR_clone, gr7
 	tra	gr0,gr0
 
-	cmp	gr8, gr0, icc0
-	bgtlr	icc0, #1
+	cmp.p	gr8, gr0, icc0
+	setlos #-4096, gr6
+	cmp.p	gr8, gr6, icc1
 	beq	icc0, #0, .Lthread_start
+	blslr	icc1, #2
 
 .Lsys_error:
 	sethi.p	#gotofffuncdeschi(__syscall_error), gr14
@@ -52,7 +54,7 @@ __clone:
 	jmpl	@(gr14, gr0)
 
 .Lerror:
-	setlos.p #-EINVAL, gr7
+	setlos.p #-EINVAL, gr8
 	bra	.Lsys_error
 
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