Merge tag 'metag-v3.9-rc1-v4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag

Pull new ImgTec Meta architecture from James Hogan:
 "This adds core architecture support for Imagination's Meta processor
  cores, followed by some later miscellaneous arch/metag cleanups and
  fixes which I kept separate to ease review:

   - Support for basic Meta 1 (ATP) and Meta 2 (HTP) core architecture
   - A few fixes all over, particularly for symbol prefixes
   - A few privilege protection fixes
   - Several cleanups (setup.c includes, split out a lot of
     metag_ksyms.c)
   - Fix some missing exports
   - Convert hugetlb to use vm_unmapped_area()
   - Copy device tree to non-init memory
   - Provide dma_get_sgtable()"

* tag 'metag-v3.9-rc1-v4' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag: (61 commits)
  metag: Provide dma_get_sgtable()
  metag: prom.h: remove declaration of metag_dt_memblock_reserve()
  metag: copy devicetree to non-init memory
  metag: cleanup metag_ksyms.c includes
  metag: move mm/init.c exports out of metag_ksyms.c
  metag: move usercopy.c exports out of metag_ksyms.c
  metag: move setup.c exports out of metag_ksyms.c
  metag: move kick.c exports out of metag_ksyms.c
  metag: move traps.c exports out of metag_ksyms.c
  metag: move irq enable out of irqflags.h on SMP
  genksyms: fix metag symbol prefix on crc symbols
  metag: hugetlb: convert to vm_unmapped_area()
  metag: export clear_page and copy_page
  metag: export metag_code_cache_flush_all
  metag: protect more non-MMU memory regions
  metag: make TXPRIVEXT bits explicit
  metag: kernel/setup.c: sort includes
  perf: Enable building perf tools for Meta
  metag: add boot time LNKGET/LNKSET check
  metag: add __init to metag_cache_probe()
  ...

3 files changed, 21 insertions, 3 deletions

diff --git a/scripts/checkstack.pl b/scripts/checkstack.pl
index 17e384396705..544aa56b6200 100755
--- a/scripts/checkstack.pl
+++ b/scripts/checkstack.pl
@@ -34,7 +34,7 @@ use strict;
 # $1 (first bracket) matches the dynamic amount of the stack growth
 #
 # use anything else and feel the pain ;)
-my (@stack, $re, $dre, $x, $xs);
+my (@stack, $re, $dre, $x, $xs, $funcre);
 {
         my $arch = shift;
         if ($arch eq "") {
@@ -44,6 +44,7 @@ my (@stack, $re, $dre, $x, $xs);
 
         $x      = "[0-9a-f]";   # hex character
         $xs     = "[0-9a-f ]";  # hex character or space
+        $funcre = qr/^$x* <(.*)>:$/;
         if ($arch eq 'arm') {
                 #c0008ffc:      e24dd064        sub     sp, sp, #100    ; 0x64
                 $re = qr/.*sub.*sp, sp, #(([0-9]{2}|[3-9])[0-9]{2})/o;
@@ -66,6 +67,10 @@ my (@stack, $re, $dre, $x, $xs);
                 #    2b6c:       4e56 fb70       linkw %fp,#-1168
                 #  1df770:       defc ffe4       addaw #-28,%sp
                 $re = qr/.*(?:linkw %fp,|addaw )#-([0-9]{1,4})(?:,%sp)?$/o;
+        } elsif ($arch eq 'metag') {
+                #400026fc:       40 00 00 82     ADD       A0StP,A0StP,#0x8
+                $re = qr/.*ADD.*A0StP,A0StP,\#(0x$x{1,8})/o;
+                $funcre = qr/^$x* <[^\$](.*)>:$/;
         } elsif ($arch eq 'mips64') {
                 #8800402c:       67bdfff0        daddiu  sp,sp,-16
                 $re = qr/.*daddiu.*sp,sp,-(([0-9]{2}|[3-9])[0-9]{2})/o;
@@ -109,7 +114,6 @@ my (@stack, $re, $dre, $x, $xs);
 #
 # main()
 #
-my $funcre = qr/^$x* <(.*)>:$/;
 my ($func, $file, $lastslash);
 
 while (my $line = <STDIN>) {
diff --git a/scripts/genksyms/genksyms.c b/scripts/genksyms/genksyms.c
index 8a106499ec4f..d25e4a118d37 100644
--- a/scripts/genksyms/genksyms.c
+++ b/scripts/genksyms/genksyms.c
@@ -826,7 +826,8 @@ int main(int argc, char **argv)
                         genksyms_usage();
                         return 1;
                 }
-        if ((strcmp(arch, "h8300") == 0) || (strcmp(arch, "blackfin") == 0))
+        if ((strcmp(arch, "h8300") == 0) || (strcmp(arch, "blackfin") == 0) ||
+            (strcmp(arch, "metag") == 0))
                 mod_prefix = "_";
         {
                 extern int yydebug;
diff --git a/scripts/recordmcount.c b/scripts/recordmcount.c
index ee52cb8e17ad..9c22317778eb 100644
--- a/scripts/recordmcount.c
+++ b/scripts/recordmcount.c
@@ -33,6 +33,13 @@
 #include <string.h>
 #include <unistd.h>
 
+#ifndef EM_METAG
+/* Remove this when these make it to the standard system elf.h. */
+#define EM_METAG      174
+#define R_METAG_ADDR32                   2
+#define R_METAG_NONE                     3
+#endif
+
 static int fd_map;      /* File descriptor for file being modified. */
 static int mmap_failed; /* Boolean flag. */
 static void *ehdr_curr; /* current ElfXX_Ehdr *  for resource cleanup */
@@ -341,6 +348,12 @@ do_file(char const *const fname)
                          altmcount = "__gnu_mcount_nc";
                          break;
         case EM_IA_64:   reltype = R_IA64_IMM64;   gpfx = '_'; break;
+        case EM_METAG:   reltype = R_METAG_ADDR32;
+                         altmcount = "_mcount_wrapper";
+                         rel_type_nop = R_METAG_NONE;
+                         /* We happen to have the same requirement as MIPS */
+                         is_fake_mcount32 = MIPS32_is_fake_mcount;
+                         break;
         case EM_MIPS:    /* reltype: e_class    */ gpfx = '_'; break;
         case EM_PPC:     reltype = R_PPC_ADDR32;   gpfx = '_'; break;
         case EM_PPC64:   reltype = R_PPC64_ADDR64; gpfx = '_'; break;