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authorMaciej W. Rozycki <macro@linux-mips.org>2012-08-09 12:05:15 +0000
committerMaciej W. Rozycki <macro@linux-mips.org>2012-08-09 12:05:15 +0000
commitd21911eaddba472db273e212ae6047186974f394 (patch)
treeb9ad4f1e7119ecc6031c96beab77a48c1ca25046
parent1969df89190a78c88c99478eac88556132397402 (diff)
downloadgdb-d21911eaddba472db273e212ae6047186974f394.zip
gdb-d21911eaddba472db273e212ae6047186974f394.tar.gz
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* elfxx-mips.c (LA25_LUI_MICROMIPS_1, LA25_LUI_MICROMIPS_2):
Remove macros, folding them into... (LA25_LUI_MICROMIPS): ... this new macro. (LA25_J_MICROMIPS_1, LA25_J_MICROMIPS_2): Likewise into... (LA25_J_MICROMIPS): ... this new macro. (LA25_ADDIU_MICROMIPS_1, LA25_ADDIU_MICROMIPS_2): Likewise into... (LA25_ADDIU_MICROMIPS): ... this new macro. (bfd_put_micromips_32, bfd_get_micromips_32): New functions. (mips_elf_create_la25_stub): Use them. (check_br32_dslot, check_br32, check_relocated_bzc): Likewise. (_bfd_mips_elf_relax_section): Likewise.
-rw-r--r--bfd/ChangeLog15
-rw-r--r--bfd/elfxx-mips.c90
2 files changed, 60 insertions, 45 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 3f40b9e..a52027d 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,18 @@
+2012-08-09 Maciej W. Rozycki <macro@codesourcery.com>
+
+ * elfxx-mips.c (LA25_LUI_MICROMIPS_1, LA25_LUI_MICROMIPS_2):
+ Remove macros, folding them into...
+ (LA25_LUI_MICROMIPS): ... this new macro.
+ (LA25_J_MICROMIPS_1, LA25_J_MICROMIPS_2): Likewise into...
+ (LA25_J_MICROMIPS): ... this new macro.
+ (LA25_ADDIU_MICROMIPS_1, LA25_ADDIU_MICROMIPS_2): Likewise
+ into...
+ (LA25_ADDIU_MICROMIPS): ... this new macro.
+ (bfd_put_micromips_32, bfd_get_micromips_32): New functions.
+ (mips_elf_create_la25_stub): Use them.
+ (check_br32_dslot, check_br32, check_relocated_bzc): Likewise.
+ (_bfd_mips_elf_relax_section): Likewise.
+
2012-08-09 Alan Modra <amodra@gmail.com>
Tom Tromey <tromey@redhat.com>
diff --git a/bfd/elfxx-mips.c b/bfd/elfxx-mips.c
index 82743ac..2a4c278 100644
--- a/bfd/elfxx-mips.c
+++ b/bfd/elfxx-mips.c
@@ -306,12 +306,12 @@ struct mips_elf_la25_stub {
#define LA25_LUI(VAL) (0x3c190000 | (VAL)) /* lui t9,VAL */
#define LA25_J(VAL) (0x08000000 | (((VAL) >> 2) & 0x3ffffff)) /* j VAL */
#define LA25_ADDIU(VAL) (0x27390000 | (VAL)) /* addiu t9,t9,VAL */
-#define LA25_LUI_MICROMIPS_1(VAL) (0x41b9) /* lui t9,VAL */
-#define LA25_LUI_MICROMIPS_2(VAL) (VAL)
-#define LA25_J_MICROMIPS_1(VAL) (0xd400 | (((VAL) >> 17) & 0x3ff)) /* j VAL */
-#define LA25_J_MICROMIPS_2(VAL) ((VAL) >> 1)
-#define LA25_ADDIU_MICROMIPS_1(VAL) (0x3339) /* addiu t9,t9,VAL */
-#define LA25_ADDIU_MICROMIPS_2(VAL) (VAL)
+#define LA25_LUI_MICROMIPS(VAL) \
+ (0x41b90000 | (VAL)) /* lui t9,VAL */
+#define LA25_J_MICROMIPS(VAL) \
+ (0xd4000000 | (((VAL) >> 1) & 0x3ffffff)) /* j VAL */
+#define LA25_ADDIU_MICROMIPS(VAL) \
+ (0x33390000 | (VAL)) /* addiu t9,t9,VAL */
/* This structure is passed to mips_elf_sort_hash_table_f when sorting
the dynamic symbols. */
@@ -1013,6 +1013,23 @@ static const bfd_vma mips_vxworks_shared_plt_entry[] =
0x24180000 /* li t8, <pltindex> */
};
+/* microMIPS 32-bit opcode helper installer. */
+
+static void
+bfd_put_micromips_32 (const bfd *abfd, bfd_vma opcode, bfd_byte *ptr)
+{
+ bfd_put_16 (abfd, (opcode >> 16) & 0xffff, ptr);
+ bfd_put_16 (abfd, opcode & 0xffff, ptr + 2);
+}
+
+/* microMIPS 32-bit opcode helper retriever. */
+
+static bfd_vma
+bfd_get_micromips_32 (const bfd *abfd, const bfd_byte *ptr)
+{
+ return (bfd_get_16 (abfd, ptr) << 16) | bfd_get_16 (abfd, ptr + 2);
+}
+
/* Look up an entry in a MIPS ELF linker hash table. */
#define mips_elf_link_hash_lookup(table, string, create, copy, follow) \
@@ -9777,14 +9794,12 @@ mips_elf_create_la25_stub (void **slot, void *data)
loc += offset;
if (ELF_ST_IS_MICROMIPS (stub->h->root.other))
{
- bfd_put_16 (hti->output_bfd, LA25_LUI_MICROMIPS_1 (target_high),
- loc);
- bfd_put_16 (hti->output_bfd, LA25_LUI_MICROMIPS_2 (target_high),
- loc + 2);
- bfd_put_16 (hti->output_bfd, LA25_ADDIU_MICROMIPS_1 (target_low),
- loc + 4);
- bfd_put_16 (hti->output_bfd, LA25_ADDIU_MICROMIPS_2 (target_low),
- loc + 6);
+ bfd_put_micromips_32 (hti->output_bfd,
+ LA25_LUI_MICROMIPS (target_high),
+ loc);
+ bfd_put_micromips_32 (hti->output_bfd,
+ LA25_ADDIU_MICROMIPS (target_low),
+ loc + 4);
}
else
{
@@ -9798,16 +9813,12 @@ mips_elf_create_la25_stub (void **slot, void *data)
loc += offset;
if (ELF_ST_IS_MICROMIPS (stub->h->root.other))
{
- bfd_put_16 (hti->output_bfd, LA25_LUI_MICROMIPS_1 (target_high),
- loc);
- bfd_put_16 (hti->output_bfd, LA25_LUI_MICROMIPS_2 (target_high),
- loc + 2);
- bfd_put_16 (hti->output_bfd, LA25_J_MICROMIPS_1 (target), loc + 4);
- bfd_put_16 (hti->output_bfd, LA25_J_MICROMIPS_2 (target), loc + 6);
- bfd_put_16 (hti->output_bfd, LA25_ADDIU_MICROMIPS_1 (target_low),
- loc + 8);
- bfd_put_16 (hti->output_bfd, LA25_ADDIU_MICROMIPS_2 (target_low),
- loc + 10);
+ bfd_put_micromips_32 (hti->output_bfd,
+ LA25_LUI_MICROMIPS (target_high), loc);
+ bfd_put_micromips_32 (hti->output_bfd,
+ LA25_J_MICROMIPS (target), loc + 4);
+ bfd_put_micromips_32 (hti->output_bfd,
+ LA25_ADDIU_MICROMIPS (target_low), loc + 8);
bfd_put_32 (hti->output_bfd, 0, loc + 12);
}
else
@@ -12340,7 +12351,7 @@ check_br32_dslot (bfd *abfd, bfd_byte *ptr)
unsigned long opcode;
int bdsize;
- opcode = (bfd_get_16 (abfd, ptr) << 16) | bfd_get_16 (abfd, ptr + 2);
+ opcode = bfd_get_micromips_32 (abfd, ptr);
if (find_match (opcode, ds_insns_32_bd32) >= 0)
/* 32-bit branch/jump with a 32-bit delay slot. */
bdsize = 4;
@@ -12385,7 +12396,7 @@ check_br32 (bfd *abfd, bfd_byte *ptr, unsigned long reg)
{
unsigned long opcode;
- opcode = (bfd_get_16 (abfd, ptr) << 16) | bfd_get_16 (abfd, ptr + 2);
+ opcode = bfd_get_micromips_32 (abfd, ptr);
if (MATCH (opcode, j_insn_32)
/* J */
|| MATCH (opcode, bc_insn_32)
@@ -12417,9 +12428,7 @@ check_relocated_bzc (bfd *abfd, const bfd_byte *ptr, bfd_vma offset,
const Elf_Internal_Rela *irel;
unsigned long opcode;
- opcode = bfd_get_16 (abfd, ptr);
- opcode <<= 16;
- opcode |= bfd_get_16 (abfd, ptr + 2);
+ opcode = bfd_get_micromips_32 (abfd, ptr);
if (find_match (opcode, bzc_insns_32) < 0)
return FALSE;
@@ -12577,8 +12586,7 @@ _bfd_mips_elf_relax_section (bfd *abfd, asection *sec,
if (irel->r_offset + 4 > sec->size)
continue;
- opcode = bfd_get_16 (abfd, ptr ) << 16;
- opcode |= bfd_get_16 (abfd, ptr + 2);
+ opcode = bfd_get_micromips_32 (abfd, ptr);
/* This is the pc-relative distance from the instruction the
relocation is applied to, to the symbol referred. */
@@ -12660,8 +12668,7 @@ _bfd_mips_elf_relax_section (bfd *abfd, asection *sec,
continue;
}
- nextopc = bfd_get_16 (abfd, contents + irel[1].r_offset ) << 16;
- nextopc |= bfd_get_16 (abfd, contents + irel[1].r_offset + 2);
+ nextopc = bfd_get_micromips_32 (abfd, contents + irel[1].r_offset);
/* Give up unless the same register is used with both
relocations. */
@@ -12702,10 +12709,8 @@ _bfd_mips_elf_relax_section (bfd *abfd, asection *sec,
nextopc = (addiupc_insn.match
| ADDIUPC_REG_FIELD (OP32_TREG (nextopc)));
- bfd_put_16 (abfd, (nextopc >> 16) & 0xffff,
- contents + irel[1].r_offset);
- bfd_put_16 (abfd, nextopc & 0xffff,
- contents + irel[1].r_offset + 2);
+ bfd_put_micromips_32 (abfd, nextopc,
+ contents + irel[1].r_offset);
}
/* Can't do anything, give up, sigh... */
@@ -12739,8 +12744,7 @@ _bfd_mips_elf_relax_section (bfd *abfd, asection *sec,
| BZC32_REG_FIELD (reg)
| (opcode & 0xffff)); /* Addend value. */
- bfd_put_16 (abfd, (opcode >> 16) & 0xffff, ptr);
- bfd_put_16 (abfd, opcode & 0xffff, ptr + 2);
+ bfd_put_micromips_32 (abfd, opcode, ptr);
/* Delete the 16-bit delay slot NOP: two bytes from
irel->offset + 4. */
@@ -12805,8 +12809,7 @@ _bfd_mips_elf_relax_section (bfd *abfd, asection *sec,
unsigned long n32opc;
bfd_boolean relaxed = FALSE;
- n32opc = bfd_get_16 (abfd, ptr + 4) << 16;
- n32opc |= bfd_get_16 (abfd, ptr + 6);
+ n32opc = bfd_get_micromips_32 (abfd, ptr + 4);
if (MATCH (n32opc, nop_insn_32))
{
@@ -12833,10 +12836,7 @@ _bfd_mips_elf_relax_section (bfd *abfd, asection *sec,
{
/* JAL with 32-bit delay slot that is changed to a JALS
with 16-bit delay slot. */
- bfd_put_16 (abfd, (jal_insn_32_bd16.match >> 16) & 0xffff,
- ptr);
- bfd_put_16 (abfd, jal_insn_32_bd16.match & 0xffff,
- ptr + 2);
+ bfd_put_micromips_32 (abfd, jal_insn_32_bd16.match, ptr);
/* Delete 2 bytes from irel->r_offset + 6. */
delcnt = 2;