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Diffstat (limited to 'bfd/aout-ns32k.c')
-rw-r--r--bfd/aout-ns32k.c212
1 files changed, 109 insertions, 103 deletions
diff --git a/bfd/aout-ns32k.c b/bfd/aout-ns32k.c
index dc651cc..e431339 100644
--- a/bfd/aout-ns32k.c
+++ b/bfd/aout-ns32k.c
@@ -1,5 +1,5 @@
/* BFD back-end for ns32k a.out-ish binaries.
- Copyright 1990, 1991, 1992, 1994, 1995, 1996, 1998, 2000
+ Copyright 1990, 1991, 1992, 1994, 1995, 1996, 1998, 2000, 2001
Free Software Foundation, Inc.
Contributed by Ian Dall (idall@eleceng.adelaide.edu.au).
@@ -35,9 +35,8 @@ boolean
MYNS(write_object_contents)
PARAMS((bfd *abfd));
-/* Avoid multiple definitions from aoutx if supporting standard a.out format(s)
- * as well as this one
- */
+/* Avoid multiple definitions from aoutx if supporting
+ standard a.out format(s) as well as this one. */
#define NAME(x,y) CAT3(ns32kaout,_32_,y)
void bfd_ns32k_arch PARAMS ((void));
@@ -53,99 +52,102 @@ static void
MY_swap_std_reloc_in PARAMS ((bfd *abfd, struct reloc_std_external *bytes,
arelent *cache_ptr, asymbol **symbols,
bfd_size_type symcount));
-
static void
MY_swap_std_reloc_out PARAMS ((bfd *abfd, arelent *g,
struct reloc_std_external *natptr));
+reloc_howto_type *
+MY(reloc_howto) PARAMS ((bfd *, struct reloc_std_external *,
+ int *, int *, int *));
+void
+MY(put_reloc) PARAMS ((bfd *, int, int, long, reloc_howto_type *,
+ struct reloc_std_external *));
/* The ns32k series is ah, unusual, when it comes to relocation.
- * There are three storage methods for relocateable objects. There
- * are displacements, immediate operands and ordinary twos complement
- * data. Of these, only the last fits into the standard relocation
- * scheme. Immediate operands are stored huffman encoded and
- * immediate operands are stored big endian (where as the natural byte
- * order is little endian for this achitecture).
-
- * Note that the ns32k displacement storage method is orthogonal to
- * whether the relocation is pc relative or not. The "displacement"
- * storage scheme is used for essentially all address constants. The
- * displacement can be relative to zero (absolute displacement),
- * relative to the pc (pc relative), the stack pointer, the frame
- * pointer, the static base register and general purpose register etc.
-
- * For example:
- *
- * sym1: .long . # pc relative 2's complement
- * sym1: .long foo # 2's complement not pc relative
- *
- * self: movd @self, r0 # pc relative displacement
- * movd foo, r0 # non pc relative displacement
- *
- * self: movd self, r0 # pc relative immediate
- * movd foo, r0 # non pc relative immediate
- *
- * In addition, for historical reasons the encoding of the relocation types
- * in the a.out format relocation entries is such that even the relocation
- * methods which are standard are not encoded the standard way.
- *
- */
+ There are three storage methods for relocateable objects. There
+ are displacements, immediate operands and ordinary twos complement
+ data. Of these, only the last fits into the standard relocation
+ scheme. Immediate operands are stored huffman encoded and
+ immediate operands are stored big endian (where as the natural byte
+ order is little endian for this achitecture).
+
+ Note that the ns32k displacement storage method is orthogonal to
+ whether the relocation is pc relative or not. The "displacement"
+ storage scheme is used for essentially all address constants. The
+ displacement can be relative to zero (absolute displacement),
+ relative to the pc (pc relative), the stack pointer, the frame
+ pointer, the static base register and general purpose register etc.
+
+ For example:
+
+ sym1: .long . # pc relative 2's complement
+ sym1: .long foo # 2's complement not pc relative
+
+ self: movd @self, r0 # pc relative displacement
+ movd foo, r0 # non pc relative displacement
+
+ self: movd self, r0 # pc relative immediate
+ movd foo, r0 # non pc relative immediate
+
+ In addition, for historical reasons the encoding of the relocation types
+ in the a.out format relocation entries is such that even the relocation
+ methods which are standard are not encoded the standard way. */
reloc_howto_type MY(howto_table)[] =
-{
- /* ns32k immediate operands */
- HOWTO (BFD_RELOC_NS32K_IMM_8, 0, 0, 8, false, 0, true,
- _bfd_ns32k_reloc_imm, "NS32K_IMM_8",
- true, 0x000000ff,0x000000ff, false),
- HOWTO (BFD_RELOC_NS32K_IMM_16, 0, 1, 16, false, 0, true,
- _bfd_ns32k_reloc_imm, "NS32K_IMM_16",
- true, 0x0000ffff,0x0000ffff, false),
- HOWTO (BFD_RELOC_NS32K_IMM_32, 0, 2, 32, false, 0, true,
- _bfd_ns32k_reloc_imm, "NS32K_IMM_32",
- true, 0xffffffff,0xffffffff, false),
- HOWTO (BFD_RELOC_NS32K_IMM_8_PCREL, 0, 0, 8, true, 0, false,
- _bfd_ns32k_reloc_imm, "PCREL_NS32K_IMM_8",
- true, 0x000000ff, 0x000000ff, false),
- HOWTO (BFD_RELOC_NS32K_IMM_16_PCREL, 0, 1, 16, true, 0, false,
- _bfd_ns32k_reloc_imm, "PCREL_NS32K_IMM_16",
- true, 0x0000ffff,0x0000ffff, false),
- HOWTO (BFD_RELOC_NS32K_IMM_32_PCREL, 0, 2, 32, true, 0, false,
- _bfd_ns32k_reloc_imm, "PCREL_NS32K_IMM_32",
- true, 0xffffffff,0xffffffff, false),
-
- /* ns32k displacements */
- HOWTO (BFD_RELOC_NS32K_DISP_8, 0, 0, 8, false, 0, true,
- _bfd_ns32k_reloc_disp, "NS32K_DISP_8",
- true, 0x000000ff,0x000000ff, false),
- HOWTO (BFD_RELOC_NS32K_DISP_16, 0, 1, 16, false, 0, true,
- _bfd_ns32k_reloc_disp, "NS32K_DISP_16",
- true, 0x0000ffff, 0x0000ffff, false),
- HOWTO (BFD_RELOC_NS32K_DISP_32, 0, 2, 32, false, 0, true,
- _bfd_ns32k_reloc_disp, "NS32K_DISP_32",
- true, 0xffffffff, 0xffffffff, false),
- HOWTO (BFD_RELOC_NS32K_DISP_8_PCREL, 0, 0, 8, true, 0, false,
- _bfd_ns32k_reloc_disp, "PCREL_NS32K_DISP_8",
- true, 0x000000ff,0x000000ff, false),
- HOWTO (BFD_RELOC_NS32K_DISP_16_PCREL, 0, 1, 16, true, 0, false,
- _bfd_ns32k_reloc_disp, "PCREL_NS32K_DISP_16",
- true, 0x0000ffff,0x0000ffff, false),
- HOWTO (BFD_RELOC_NS32K_DISP_32_PCREL, 0, 2, 32, true, 0, false,
- _bfd_ns32k_reloc_disp, "PCREL_NS32K_DISP_32",
- true, 0xffffffff,0xffffffff, false),
-
- /* Normal 2's complement */
- HOWTO (BFD_RELOC_8, 0, 0, 8, false, 0, complain_overflow_bitfield,0,
- "8", true, 0x000000ff,0x000000ff, false),
- HOWTO (BFD_RELOC_16, 0, 1, 16, false, 0, complain_overflow_bitfield,0,
- "16", true, 0x0000ffff,0x0000ffff, false),
- HOWTO (BFD_RELOC_32, 0, 2, 32, false, 0, complain_overflow_bitfield,0,
- "32", true, 0xffffffff,0xffffffff, false),
- HOWTO (BFD_RELOC_8_PCREL, 0, 0, 8, true, 0, complain_overflow_signed, 0,
- "PCREL_8", true, 0x000000ff,0x000000ff, false),
- HOWTO (BFD_RELOC_16_PCREL, 0, 1, 16, true, 0, complain_overflow_signed, 0,
- "PCREL_16", true, 0x0000ffff,0x0000ffff, false),
- HOWTO (BFD_RELOC_32_PCREL, 0, 2, 32, true, 0, complain_overflow_signed, 0,
- "PCREL_32", true, 0xffffffff,0xffffffff, false),
-};
+ {
+ /* ns32k immediate operands. */
+ HOWTO (BFD_RELOC_NS32K_IMM_8, 0, 0, 8, false, 0, true,
+ _bfd_ns32k_reloc_imm, "NS32K_IMM_8",
+ true, 0x000000ff,0x000000ff, false),
+ HOWTO (BFD_RELOC_NS32K_IMM_16, 0, 1, 16, false, 0, true,
+ _bfd_ns32k_reloc_imm, "NS32K_IMM_16",
+ true, 0x0000ffff,0x0000ffff, false),
+ HOWTO (BFD_RELOC_NS32K_IMM_32, 0, 2, 32, false, 0, true,
+ _bfd_ns32k_reloc_imm, "NS32K_IMM_32",
+ true, 0xffffffff,0xffffffff, false),
+ HOWTO (BFD_RELOC_NS32K_IMM_8_PCREL, 0, 0, 8, true, 0, false,
+ _bfd_ns32k_reloc_imm, "PCREL_NS32K_IMM_8",
+ true, 0x000000ff, 0x000000ff, false),
+ HOWTO (BFD_RELOC_NS32K_IMM_16_PCREL, 0, 1, 16, true, 0, false,
+ _bfd_ns32k_reloc_imm, "PCREL_NS32K_IMM_16",
+ true, 0x0000ffff,0x0000ffff, false),
+ HOWTO (BFD_RELOC_NS32K_IMM_32_PCREL, 0, 2, 32, true, 0, false,
+ _bfd_ns32k_reloc_imm, "PCREL_NS32K_IMM_32",
+ true, 0xffffffff,0xffffffff, false),
+
+ /* ns32k displacements. */
+ HOWTO (BFD_RELOC_NS32K_DISP_8, 0, 0, 8, false, 0, true,
+ _bfd_ns32k_reloc_disp, "NS32K_DISP_8",
+ true, 0x000000ff,0x000000ff, false),
+ HOWTO (BFD_RELOC_NS32K_DISP_16, 0, 1, 16, false, 0, true,
+ _bfd_ns32k_reloc_disp, "NS32K_DISP_16",
+ true, 0x0000ffff, 0x0000ffff, false),
+ HOWTO (BFD_RELOC_NS32K_DISP_32, 0, 2, 32, false, 0, true,
+ _bfd_ns32k_reloc_disp, "NS32K_DISP_32",
+ true, 0xffffffff, 0xffffffff, false),
+ HOWTO (BFD_RELOC_NS32K_DISP_8_PCREL, 0, 0, 8, true, 0, false,
+ _bfd_ns32k_reloc_disp, "PCREL_NS32K_DISP_8",
+ true, 0x000000ff,0x000000ff, false),
+ HOWTO (BFD_RELOC_NS32K_DISP_16_PCREL, 0, 1, 16, true, 0, false,
+ _bfd_ns32k_reloc_disp, "PCREL_NS32K_DISP_16",
+ true, 0x0000ffff,0x0000ffff, false),
+ HOWTO (BFD_RELOC_NS32K_DISP_32_PCREL, 0, 2, 32, true, 0, false,
+ _bfd_ns32k_reloc_disp, "PCREL_NS32K_DISP_32",
+ true, 0xffffffff,0xffffffff, false),
+
+ /* Normal 2's complement. */
+ HOWTO (BFD_RELOC_8, 0, 0, 8, false, 0, complain_overflow_bitfield,0,
+ "8", true, 0x000000ff,0x000000ff, false),
+ HOWTO (BFD_RELOC_16, 0, 1, 16, false, 0, complain_overflow_bitfield,0,
+ "16", true, 0x0000ffff,0x0000ffff, false),
+ HOWTO (BFD_RELOC_32, 0, 2, 32, false, 0, complain_overflow_bitfield,0,
+ "32", true, 0xffffffff,0xffffffff, false),
+ HOWTO (BFD_RELOC_8_PCREL, 0, 0, 8, true, 0, complain_overflow_signed, 0,
+ "PCREL_8", true, 0x000000ff,0x000000ff, false),
+ HOWTO (BFD_RELOC_16_PCREL, 0, 1, 16, true, 0, complain_overflow_signed, 0,
+ "PCREL_16", true, 0x0000ffff,0x0000ffff, false),
+ HOWTO (BFD_RELOC_32_PCREL, 0, 2, 32, true, 0, complain_overflow_signed, 0,
+ "PCREL_32", true, 0xffffffff,0xffffffff, false),
+ };
#define CTOR_TABLE_RELOC_HOWTO(BFD) (MY(howto_table) + 14)
@@ -164,7 +166,8 @@ MY(reloc_howto) (abfd, rel, r_index, r_extern, r_pcrel)
{
unsigned int r_length;
int r_ns32k_type;
-/* BFD_ASSERT(bfd_header_little_endian (abfd)); */
+
+ /* BFD_ASSERT(bfd_header_little_endian (abfd)); */
*r_index = ((rel->r_index[2] << 16)
| (rel->r_index[1] << 8)
| rel->r_index[0] );
@@ -191,11 +194,13 @@ MY(put_reloc) (abfd, r_extern, r_index, value, howto, reloc)
unsigned int r_length;
int r_pcrel;
int r_ns32k_type;
+
PUT_WORD (abfd, value, reloc->r_address);
- r_length = howto->size ; /* Size as a power of two */
- r_pcrel = (int) howto->pc_relative; /* Relative to PC? */
+ r_length = howto->size ; /* Size as a power of two. */
+ r_pcrel = (int) howto->pc_relative; /* Relative to PC? */
r_ns32k_type = (howto - MY(howto_table) )/6;
-/* BFD_ASSERT (bfd_header_little_endian (abfd)); */
+
+ /* BFD_ASSERT (bfd_header_little_endian (abfd)); */
reloc->r_index[2] = r_index >> 16;
reloc->r_index[1] = r_index >> 8;
reloc->r_index[0] = r_index;
@@ -233,6 +238,8 @@ MY(bfd_reloc_type_lookup) (abfd,code)
case 32:
code = BFD_RELOC_32;
break;
+ default:
+ break;
}
switch (code)
{
@@ -254,7 +261,8 @@ MY(bfd_reloc_type_lookup) (abfd,code)
ENTRY(BFD_RELOC_8_PCREL, 15);
ENTRY(BFD_RELOC_16_PCREL, 16);
ENTRY(BFD_RELOC_32_PCREL, 17);
- default: return (reloc_howto_type *) NULL;
+ default:
+ return (reloc_howto_type *) NULL;
}
#undef ENTRY
}
@@ -274,11 +282,10 @@ MY_swap_std_reloc_in (abfd, bytes, cache_ptr, symbols, symcount)
cache_ptr->address = bfd_h_get_32 (abfd, bytes->r_address);
- /* now the fun stuff */
-
+ /* Now the fun stuff. */
cache_ptr->howto = MY_reloc_howto(abfd, bytes, r_index, r_extern, r_pcrel);
- MOVE_ADDRESS(0);
+ MOVE_ADDRESS (0);
}
static void
@@ -295,7 +302,7 @@ MY_swap_std_reloc_out (abfd, g, natptr)
r_addend = g->addend + (*(g->sym_ptr_ptr))->section->output_section->vma;
- /* name was clobbered by aout_write_syms to be symbol index */
+ /* Name was clobbered by aout_write_syms to be symbol index. */
/* If this relocation is relative to a symbol then set the
r_index to the symbols index, and the r_extern bit.
@@ -303,7 +310,6 @@ MY_swap_std_reloc_out (abfd, g, natptr)
Absolute symbols can come in in two ways, either as an offset
from the abs section, or as a symbol which has an abs value.
Check for that here. */
-
if (bfd_is_com_section (output_section)
|| output_section == &bfd_abs_section
|| output_section == &bfd_und_section)
@@ -311,13 +317,13 @@ MY_swap_std_reloc_out (abfd, g, natptr)
if (bfd_abs_section.symbol == sym)
{
/* Whoops, looked like an abs symbol, but is really an offset
- from the abs section */
+ from the abs section. */
r_index = 0;
r_extern = 0;
}
else
{
- /* Fill in symbol */
+ /* Fill in symbol. */
r_extern = 1;
#undef KEEPIT
#define KEEPIT udata.i
@@ -327,7 +333,7 @@ MY_swap_std_reloc_out (abfd, g, natptr)
}
else
{
- /* Just an ordinary section */
+ /* Just an ordinary section. */
r_extern = 0;
r_index = output_section->target_index;
}
generated by cgit v1.1 at 2024-11-26 12:16:33 +0000