gdb: Add MicroBlaze support

* Import Xilinx gdb patches for MicroBlaze
* Disable dependence on LTTng-UST for MicroBlaze, it is not supported

Signed-off-by: Nathan Rossi <nathan.rossi@xilinx.com>

1 files changed, 62 insertions, 0 deletions

diff --git a/recipes-devtools/gdb/files/0007-Fix-relaxation-of-assembler-resolved-references.patch b/recipes-devtools/gdb/files/0007-Fix-relaxation-of-assembler-resolved-references.patch
new file mode 100644
index 00000000..3aaaf0ab
--- /dev/null
+++ b/recipes-devtools/gdb/files/0007-Fix-relaxation-of-assembler-resolved-references.patch
@@ -0,0 +1,62 @@
+From: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
+Date: Tue, 14 Feb 2012 01:00:22 +0100
+Subject: Fix relaxation of assembler resolved references
+
+Upstream-Status: Pending
+---
+ bfd/elf32-microblaze.c |   39 +++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 39 insertions(+)
+
+diff --git a/bfd/elf32-microblaze.c b/bfd/elf32-microblaze.c
+index 365546c..61926a4 100644
+--- a/bfd/elf32-microblaze.c
++++ b/bfd/elf32-microblaze.c
+@@ -1967,6 +1967,45 @@ microblaze_elf_relax_section (bfd *abfd,
+           irelscanend = irelocs + o->reloc_count;
+           for (irelscan = irelocs; irelscan < irelscanend; irelscan++)
+             {
++              if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_NONE)
++                {
++                  unsigned int val;
++
++                  isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
++
++                  /* This was a PC-relative instruction that was completely resolved.  */
++                  if (ocontents == NULL)
++                    {
++                     if (elf_section_data (o)->this_hdr.contents != NULL)
++                         ocontents = elf_section_data (o)->this_hdr.contents;
++                     else
++                       {
++                         /* We always cache the section contents.
++                            Perhaps, if info->keep_memory is FALSE, we
++                            should free them, if we are permitted to.  */
++
++                         if (o->rawsize == 0)
++                             o->rawsize = o->size;
++                         ocontents = (bfd_byte *) bfd_malloc (o->rawsize);
++                         if (ocontents == NULL)
++                             goto error_return;
++                         if (!bfd_get_section_contents (abfd, o, ocontents,
++                                                         (file_ptr) 0,
++                                                         o->rawsize))
++                              goto error_return;
++                         elf_section_data (o)->this_hdr.contents = ocontents;
++                       }
++                   }
++
++                  irelscan->r_addend -= calc_fixup (irelscan->r_addend
++                                                    + isym->st_value, sec);
++                  val = bfd_get_32 (abfd, ocontents + irelscan->r_offset);
++                  microblaze_bfd_write_imm_value_32 (abfd, ocontents + irelscan->r_offset,
++                                                     irelscan->r_addend);
++              }
++              if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_64_NONE) {
++                  fprintf(stderr, "Unhandled NONE 64\n");
++              }
+               if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32)
+                 {
+                  isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
+-- 
+1.7.9.5
+