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* elf32-m32r.c (m32r_elf_generic_reloc): new function. All

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HOWTO references to bfd_elf_generic_reloc, that have
	partial_inplace == true, now use the new function.  The function
	is based on the recent rewrite of m32r_elf_lo16_reloc(), and
	extends its fixes to the R_M32R_{16,24,32} relocs.
	The new logic in m32r_elf_lo16_reloc() has been removed, and
	it instead calls the new routine to obtain that functionality.
This commit is contained in:
Doug Evans 2000-03-30 22:16:39 +00:00
parent afb2cbbd21
commit 8b125cdefa
2 changed files with 79 additions and 11 deletions
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10
bfd/ChangeLog
View File

@ -1,3 +1,13 @@
Wed Mar 30 15:28:00 2000 Donald Lindsay <dlindsay@cygnus.com>
* elf32-m32r.c (m32r_elf_generic_reloc): new function. All
HOWTO references to bfd_elf_generic_reloc, that have
partial_inplace == true, now use the new function. The function
is based on the recent rewrite of m32r_elf_lo16_reloc(), and
extends its fixes to the R_M32R_{16,24,32} relocs.
The new logic in m32r_elf_lo16_reloc() has been removed, and
it instead calls the new routine to obtain that functionality.
2000-03-27 Alan Modra <alan@linuxcare.com>
* elf32-avr.c (elf32_avr_gc_mark_hook, elf32_avr_gc_sweep_hook,

80
bfd/elf32-m32r.c
View File

@ -1,5 +1,5 @@
/* M32R-specific support for 32-bit ELF.
Copyright (C) 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
@ -35,6 +35,8 @@ static void m32r_elf_relocate_hi16
bfd_byte *, bfd_vma));
bfd_reloc_status_type m32r_elf_lo16_reloc
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
bfd_reloc_status_type m32r_elf_generic_reloc
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
static bfd_reloc_status_type m32r_elf_sda16_reloc
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
static reloc_howto_type *bfd_elf32_bfd_reloc_type_lookup
@ -105,7 +107,7 @@ static reloc_howto_type m32r_elf_howto_table[] =
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
m32r_elf_generic_reloc,/* special_function */
"R_M32R_16", /* name */
true, /* partial_inplace */
0xffff, /* src_mask */
@ -120,7 +122,7 @@ static reloc_howto_type m32r_elf_howto_table[] =
false, /* pc_relative */
0, /* bitpos */
complain_overflow_bitfield, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
m32r_elf_generic_reloc,/* special_function */
"R_M32R_32", /* name */
true, /* partial_inplace */
0xffffffff, /* src_mask */
@ -135,7 +137,7 @@ static reloc_howto_type m32r_elf_howto_table[] =
false, /* pc_relative */
0, /* bitpos */
complain_overflow_unsigned, /* complain_on_overflow */
bfd_elf_generic_reloc, /* special_function */
m32r_elf_generic_reloc,/* special_function */
"R_M32R_24", /* name */
true, /* partial_inplace */
0xffffff, /* src_mask */
@ -508,10 +510,6 @@ m32r_elf_lo16_reloc (input_bfd, reloc_entry, symbol, data,
bfd *output_bfd;
char **error_message;
{
bfd_reloc_status_type ret;
bfd_vma relocation;
unsigned long insn;
/* This part is from bfd_elf_generic_reloc.
If we're relocating, and this an external symbol, we don't want
to change anything. */
@ -564,6 +562,44 @@ m32r_elf_lo16_reloc (input_bfd, reloc_entry, symbol, data,
but we have partial_inplace == TRUE. bfd_elf_generic_reloc will
pass the handling back to bfd_install_relocation which will install
a section relative addend which is wrong. */
return m32r_elf_generic_reloc (input_bfd, reloc_entry, symbol, data,
input_section, output_bfd, error_message);
}
/* Do generic partial_inplace relocation.
This is a local replacement for bfd_elf_generic_reloc. */
bfd_reloc_status_type
m32r_elf_generic_reloc (input_bfd, reloc_entry, symbol, data,
input_section, output_bfd, error_message)
bfd *input_bfd;
arelent *reloc_entry;
asymbol *symbol;
PTR data;
asection *input_section;
bfd *output_bfd;
char **error_message;
{
bfd_reloc_status_type ret;
bfd_vma relocation;
bfd_byte *inplace_address;
/* This part is from bfd_elf_generic_reloc.
If we're relocating, and this an external symbol, we don't want
to change anything. */
if (output_bfd != (bfd *) NULL
&& (symbol->flags & BSF_SECTION_SYM) == 0
&& reloc_entry->addend == 0)
{
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
}
/* Now do the the reloc in the usual way.
??? It would be nice to call bfd_elf_generic_reloc here,
but we have partial_inplace == TRUE. bfd_elf_generic_reloc will
pass the handling back to bfd_install_relocation which will install
a section relative addend which is wrong. */
/* Sanity check the address (offset in section). */
if (reloc_entry->address > input_section->_cooked_size)
@ -588,10 +624,32 @@ m32r_elf_lo16_reloc (input_bfd, reloc_entry, symbol, data,
}
relocation += reloc_entry->addend;
inplace_address = data + reloc_entry->address;
insn = bfd_get_32 (input_bfd, data + reloc_entry->address);
insn = (insn & 0xffff0000) | (relocation & 0xffff);
bfd_put_32 (input_bfd, insn, data + reloc_entry->address);
#define DOIT(x) \
x = ( (x & ~reloc_entry->howto->dst_mask) | \
(((x & reloc_entry->howto->src_mask) + relocation) & \
reloc_entry->howto->dst_mask))
switch (reloc_entry->howto->size)
{
case 1:
{
short x = bfd_get_16 (input_bfd, inplace_address);
DOIT (x);
bfd_put_16 (input_bfd, x, inplace_address);
}
break;
case 2:
{
unsigned long x = bfd_get_32 (input_bfd, inplace_address);
DOIT (x);
bfd_put_32 (input_bfd, x, inplace_address);
}
break;
default:
BFD_ASSERT (0);
}
if (output_bfd != (bfd *) NULL)
reloc_entry->address += input_section->output_offset;