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, 7 insertions, 4 deletions

diff --git a/ldso/ldso/frv/dl-sysdep.h b/ldso/ldso/frv/dl-sysdep.h
index e0faf89ed..46f8461f7 100644
--- a/ldso/ldso/frv/dl-sysdep.h
+++ b/ldso/ldso/frv/dl-sysdep.h
@@ -29,6 +29,8 @@ USA.  */
  */
 #undef ELF_USES_RELOCA
 
+#define DL_NO_COPY_RELOCS
+
 /*
  * Initialization sequence for a GOT.  Copy the resolver function
  * descriptor and the pointer to the elf_resolve/link_map data
@@ -62,10 +64,11 @@ extern int _dl_linux_resolve(void) __attribute__((__visibility__("hidden")));
 
 #define do_rem(result, n, base)  result = (n % base)
 
-/* 4096 bytes alignment */
-#define PAGE_ALIGN 0xfffff000
-#define ADDR_ALIGN 0xfff
-#define OFFS_ALIGN 0x7ffff000
+/* 16KiB page alignment.  Should perhaps be made dynamic using
+   getpagesize(), based on AT_PAGESZ from auxvt?  */
+#define PAGE_ALIGN 0xffffc000
+#define ADDR_ALIGN 0x3fff
+#define OFFS_ALIGN 0x7fffc000
 
 struct funcdesc_ht;