[GAS][AARCH64]Add BFD_RELOC_AARCH64_MOVW_GOTOFF_G1 Support.

bfd/

2015-10-02  Renlin Li  <renlin.li@arm.com>

	* reloc.c (BFD_RELOC_AARCH64_MOVW_GOTOFF_G1): New.
	* elfnn-aarch64.c (elfNN_aarch64_howto_table): New entry for
	MOVW_GOTOFF_G1.
	* libbfd.h: Regenerate.
	* bfd-in2.h: Regenerate.

gas/

2015-10-02  Renlin Li  <renlin.li@arm.com>

	* config/tc-aarch64.c (reloc_table): New relocation modifier
	gotoff_g1.
	(process_movw_reloc_info): Support newly added modifier.
	(md_apply_fix): Likewise.

gas/testsuite/

2015-10-02  Renlin Li  <renlin.li@arm.com>

	* gas/aarch64/reloc-gotoff_g1.s: New.
	* gas/aarch64/reloc-gotoff_g1.d: New.

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 1413d10..c3b0cc9 100644 (file)
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,11 @@
+2015-010-02  Renlin Li  <renlin.li@arm.com>
+
+       * reloc.c (BFD_RELOC_AARCH64_MOVW_GOTOFF_G1): New.
+       * elfnn-aarch64.c (elfNN_aarch64_howto_table): New entry for
+       MOVW_GOTOFF_G1.
+       * libbfd.h: Regenerate.
+       * bfd-in2.h: Regenerate.
+
 2015-10-02  Renlin Li  <renlin.li@arm.com>
 
        * elfnn-aarch64.c (aarch64_reloc_got_type): Add

diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index 0d096f9..9c4b349 100644 (file)
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -5754,6 +5754,10 @@ the GOT entry for this symbol.  Used in conjunction with
 BFD_RELOC_AARCH64_ADR_GOTPAGE.  Valid in ILP32 ABI only.  */
   BFD_RELOC_AARCH64_LD32_GOT_LO12_NC,
 
+/* Unsigned 16 bit byte higher offset for 64 bit load/store from the GOT entry
+for this symbol.  Valid in LP64 ABI only.  */
+  BFD_RELOC_AARCH64_MOVW_GOTOFF_G1,
+
 /* Unsigned 15 bit byte offset for 64 bit load/store from the page of
 the GOT entry for this symbol.  Valid in LP64 ABI only.  */
   BFD_RELOC_AARCH64_LD64_GOTOFF_LO15,

diff --git a/bfd/elfnn-aarch64.c b/bfd/elfnn-aarch64.c
index adef278..7349ad7 100644 (file)
--- a/bfd/elfnn-aarch64.c
+++ b/bfd/elfnn-aarch64.c
@@ -884,6 +884,21 @@ static reloc_howto_type elfNN_aarch64_howto_table[] =
         0xffc,                 /* dst_mask */
         FALSE),                /* pcrel_offset */
 
+  /* Higher 16 bits of GOT offset for the symbol.  */
+  HOWTO64 (AARCH64_R (MOVW_GOTOFF_G1), /* type */
+        16,                    /* rightshift */
+        2,                     /* size (0 = byte, 1 = short, 2 = long) */
+        16,                    /* bitsize */
+        FALSE,                 /* pc_relative */
+        0,                     /* bitpos */
+        complain_overflow_unsigned,    /* complain_on_overflow */
+        bfd_elf_generic_reloc, /* special_function */
+        AARCH64_R_STR (MOVW_GOTOFF_G1),        /* name */
+        FALSE,                 /* partial_inplace */
+        0xffff,                /* src_mask */
+        0xffff,                /* dst_mask */
+        FALSE),                /* pcrel_offset */
+
   /* LD64: GOT offset for the symbol.  */
   HOWTO64 (AARCH64_R (LD64_GOTOFF_LO15),       /* type */
         3,                     /* rightshift */

diff --git a/bfd/libbfd.h b/bfd/libbfd.h
index fc70e29..ae5b2b0 100644 (file)
--- a/bfd/libbfd.h
+++ b/bfd/libbfd.h
@@ -2747,6 +2747,7 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@",
   "BFD_RELOC_AARCH64_ADR_GOT_PAGE",
   "BFD_RELOC_AARCH64_LD64_GOT_LO12_NC",
   "BFD_RELOC_AARCH64_LD32_GOT_LO12_NC",
+  "BFD_RELOC_AARCH64_MOVW_GOTOFF_G1",
   "BFD_RELOC_AARCH64_LD64_GOTOFF_LO15",
   "BFD_RELOC_AARCH64_LD32_GOTPAGE_LO14",
   "BFD_RELOC_AARCH64_LD64_GOTPAGE_LO15",

diff --git a/bfd/reloc.c b/bfd/reloc.c
index caa6fb4..750a612 100644 (file)
--- a/bfd/reloc.c
+++ b/bfd/reloc.c
@@ -6790,6 +6790,11 @@ ENUMDOC
   the GOT entry for this symbol.  Used in conjunction with
   BFD_RELOC_AARCH64_ADR_GOTPAGE.  Valid in ILP32 ABI only.
 ENUM
+  BFD_RELOC_AARCH64_MOVW_GOTOFF_G1
+ENUMDOC
+  Unsigned 16 bit byte higher offset for 64 bit load/store from the GOT entry
+  for this symbol.  Valid in LP64 ABI only.
+ENUM
   BFD_RELOC_AARCH64_LD64_GOTOFF_LO15
 ENUMDOC
   Unsigned 15 bit byte offset for 64 bit load/store from the page of

diff --git a/gas/ChangeLog b/gas/ChangeLog
index 5420973..0492801 100644 (file)
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,10 @@
+2015-10-02  Renlin Li  <renlin.li@arm.com>
+
+       * config/tc-aarch64.c (reloc_table): New relocation modifier
+       gotoff_g1.
+       (process_movw_reloc_info): Support newly added modifier.
+       (md_apply_fix): Likewise.
+
 2015-09-29  Dominik Vogt  <vogt@linux.vnet.ibm.com>
 
        * doc/c-s390.texi: Add documentation.

diff --git a/gas/config/tc-aarch64.c b/gas/config/tc-aarch64.c
index b97a090..1b0e69b 100644 (file)
--- a/gas/config/tc-aarch64.c
+++ b/gas/config/tc-aarch64.c
@@ -2455,6 +2455,15 @@ static struct reloc_table_entry reloc_table[] = {
    BFD_RELOC_AARCH64_LD_GOT_LO12_NC,
    0},
 
+  /* Most significant bits 16-31 of address/value: MOVZ.  */
+  {"gotoff_g1", 0,
+   0,                          /* adr_type */
+   0,
+   BFD_RELOC_AARCH64_MOVW_GOTOFF_G1,
+   0,
+   0,
+   0},
+
   /* 15 bit offset into the page containing GOT entry for that symbol.  */
   {"gotoff_lo15", 0,
    0,                          /* adr_type */
@@ -4676,6 +4685,7 @@ process_movw_reloc_info (void)
     case BFD_RELOC_AARCH64_MOVW_G1:
     case BFD_RELOC_AARCH64_MOVW_G1_NC:
     case BFD_RELOC_AARCH64_MOVW_G1_S:
+    case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
     case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1:
     case BFD_RELOC_AARCH64_TLSLD_MOVW_DTPREL_G1_NC:
     case BFD_RELOC_AARCH64_TLSLE_MOVW_TPREL_G1:
@@ -6794,6 +6804,7 @@ md_apply_fix (fixS * fixP, valueT * valP, segT seg)
     case BFD_RELOC_AARCH64_MOVW_G1:
     case BFD_RELOC_AARCH64_MOVW_G1_NC:
     case BFD_RELOC_AARCH64_MOVW_G1_S:
+    case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
       scale = 16;
       goto movw_common;
     case BFD_RELOC_AARCH64_MOVW_G2:
@@ -6824,6 +6835,7 @@ md_apply_fix (fixS * fixP, valueT * valP, segT seg)
                case BFD_RELOC_AARCH64_MOVW_G1:
                case BFD_RELOC_AARCH64_MOVW_G2:
                case BFD_RELOC_AARCH64_MOVW_G3:
+               case BFD_RELOC_AARCH64_MOVW_GOTOFF_G1:
                  if (unsigned_overflow (value, scale + 16))
                    as_bad_where (fixP->fx_file, fixP->fx_line,
                                  _("unsigned value out of range"));

diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog
index f4c2dad..5f5e35c 100644 (file)
--- a/gas/testsuite/ChangeLog
+++ b/gas/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2015-10-02  Renlin Li  <renlin.li@arm.com>
+
+       * gas/aarch64/reloc-gotoff_g1.s: New.
+       * gas/aarch64/reloc-gotoff_g1.d: New.
+
 2015-09-30  Alan Modra  <amodra@gmail.com>
 
        * gas/ppc/ppc.exp (e500-ill): Pass -me500.

diff --git a/gas/testsuite/gas/aarch64/reloc-gotoff_g1.d b/gas/testsuite/gas/aarch64/reloc-gotoff_g1.d
new file mode 100644 (file)
index 0000000..43e1ee4
--- /dev/null
+++ b/gas/testsuite/gas/aarch64/reloc-gotoff_g1.d
@@ -0,0 +1,9 @@
+#objdump: -dr
+
+.*:     file format .*
+
+Disassembly of section \.text:
+
+0000000000000000 <.*>:
+   0:  d2a0001c        movz    x28, #0x0, lsl #16
+                       0: R_AARCH64_MOVW_GOTOFF_G1     x

diff --git a/gas/testsuite/gas/aarch64/reloc-gotoff_g1.s b/gas/testsuite/gas/aarch64/reloc-gotoff_g1.s
new file mode 100644 (file)
index 0000000..f1036a1
--- /dev/null
+++ b/gas/testsuite/gas/aarch64/reloc-gotoff_g1.s
@@ -0,0 +1,5 @@
+// Test file for AArch64 GAS -- gotoff_g1
+
+func:
+       // BFD_RELOC_AARCH64_MOVW_GOTOFF_G1
+       movz    x28, #:gotoff_g1:x