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(enum bfd_reloc_code_real): Move SPARC_BASE13 and SPARC_WDISP19 to more 

appropriate places.
(bfd_perform_relocation): Whitespace changes, more comments.
gdb-4_18-branch
Ken Raeburn 34 years ago
parent
2d56dfba5d
commit
58acdbd76b
1 changed files with 78 additions and 92 deletions
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  1. 170
      bfd/reloc.c

170
bfd/reloc.c
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@ -444,126 +444,111 @@ DEFUN(bfd_perform_relocation,(abfd,
symbol = *( reloc_entry->sym_ptr_ptr);
if ((symbol->section == &bfd_abs_section)
&& output_bfd != (bfd *)NULL)
{
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
}
{
reloc_entry->address += input_section->output_offset;
return bfd_reloc_ok;
}
if ((symbol->section == &bfd_und_section) && output_bfd == (bfd *)NULL) {
if ((symbol->section == &bfd_und_section) && output_bfd == (bfd *)NULL)
flag = bfd_reloc_undefined;
}
if (howto->special_function) {
bfd_reloc_status_type cont;
cont = howto->special_function(abfd,
reloc_entry,
symbol,
data,
input_section,
output_bfd);
if (cont != bfd_reloc_continue) return cont;
}
/* If there is a function supplied to handle this relocation type,
call it. It'll return `bfd_reloc_continue' if further processing
can be done. */
if (howto->special_function)
{
bfd_reloc_status_type cont;
cont = howto->special_function (abfd, reloc_entry, symbol, data,
input_section, output_bfd);
if (cont != bfd_reloc_continue)
return cont;
}
/*
Work out which section the relocation is targetted at and the
initial relocation command value.
*/
/* Is the address of the relocation really within the section? */
if (reloc_entry->address > input_section->_cooked_size)
return bfd_reloc_outofrange;
/* Work out which section the relocation is targetted at and the
initial relocation command value. */
if (bfd_is_com_section (symbol->section)) {
/* Get symbol value. (Common symbols are special.) */
if (bfd_is_com_section (symbol->section))
relocation = 0;
}
else {
else
relocation = symbol->value;
}
reloc_target_output_section = symbol->section->output_section;
if (output_bfd && howto->partial_inplace==false) {
/* Convert input-section-relative symbol value to absolute. */
if (output_bfd && howto->partial_inplace==false)
output_base = 0;
}
else {
else
output_base = reloc_target_output_section->vma;
}
relocation += output_base + symbol->section->output_offset;
/* Add in supplied addend. */
relocation += reloc_entry->addend;
if(reloc_entry->address > input_section->_cooked_size)
{
return bfd_reloc_outofrange;
}
if (howto->pc_relative == true)
{
/*
Anything which started out as pc relative should end up that
way too.
There are two ways we can see a pcrel instruction. Sometimes
the pcrel displacement has been partially calculated, it
includes the distance from the start of the section to the
instruction in it (e.g., sun3), and sometimes the field is
totally blank - e.g., m88kbcs.
*/
{
/* Anything which started out as pc relative should end up that
way too.
relocation -=
input_section->output_section->vma + input_section->output_offset;
There are two ways we can see a pcrel instruction. Sometimes
the pcrel displacement has been partially calculated, it
includes the distance from the start of the section to the
instruction in it (e.g., sun3), and sometimes the field is
totally blank - e.g., m88kbcs. */
relocation -=
input_section->output_section->vma + input_section->output_offset;
if (howto->pcrel_offset == true) {
relocation -= reloc_entry->address;
if (howto->pcrel_offset == true)
relocation -= reloc_entry->address;
}
}
if (output_bfd!= (bfd *)NULL)
{
if ( howto->partial_inplace == false)
{
/*
This is a partial relocation, and we want to apply the relocation
to the reloc entry rather than the raw data. Modify the reloc
inplace to reflect what we now know.
*/
reloc_entry->addend = relocation ;
reloc_entry->address += input_section->output_offset;
return flag;
}
else
{
/* This is a partial relocation, but inplace, so modify the
reloc record a bit.
If we've relocated with a symbol with a section, change
into a ref to the section belonging to the symbol
*/
reloc_entry->address += input_section->output_offset;
if (abfd->xvec->flavour == bfd_target_coff_flavour)
{
relocation -= reloc_entry->addend;
reloc_entry->addend = 0;
}
if ( howto->partial_inplace == false)
{
/* This is a partial relocation, and we want to apply the relocation
to the reloc entry rather than the raw data. Modify the reloc
inplace to reflect what we now know. */
reloc_entry->addend = relocation;
reloc_entry->address += input_section->output_offset;
return flag;
}
else
{
reloc_entry->addend = relocation ;
}
{
/* This is a partial relocation, but inplace, so modify the
reloc record a bit.
If we've relocated with a symbol with a section, change
into a ref to the section belonging to the symbol. */
reloc_entry->address += input_section->output_offset;
/* WTF?? */
if (abfd->xvec->flavour == bfd_target_coff_flavour)
{
relocation -= reloc_entry->addend;
reloc_entry->addend = 0;
}
else
{
reloc_entry->addend = relocation;
}
}
}
}
else
{
reloc_entry->addend = 0;
}
{
reloc_entry->addend = 0;
}
if (howto->complain_on_overflow && howto->pc_relative)
if (howto->complain_on_overflow && howto->pc_relative)
{
/* We can detect overflow safely here */
@ -744,7 +729,6 @@ CODE_FRAGMENT
. BFD_RELOC_SPARC_WDISP22,
. BFD_RELOC_SPARC22,
. BFD_RELOC_SPARC13,
. BFD_RELOC_SPARC_BASE13,
. BFD_RELOC_SPARC_GOT10,
. BFD_RELOC_SPARC_GOT13,
. BFD_RELOC_SPARC_GOT22,
@ -758,10 +742,10 @@ CODE_FRAGMENT
. BFD_RELOC_SPARC_UA32,
.
. {* this one is a.out specific? *}
. BFD_RELOC_SPARC_BASE13,
. BFD_RELOC_SPARC_BASE22,
.
. {* start-sanitize-v9 *}
. BFD_RELOC_SPARC_WDISP19,
. BFD_RELOC_SPARC_10,
. BFD_RELOC_SPARC_11,
.#define BFD_RELOC_SPARC_64 BFD_RELOC_64
@ -773,9 +757,11 @@ CODE_FRAGMENT
. BFD_RELOC_SPARC_PC_HM10,
. BFD_RELOC_SPARC_PC_LM22,
. BFD_RELOC_SPARC_WDISP16,
. BFD_RELOC_SPARC_WDISP19,
. BFD_RELOC_SPARC_GLOB_JMP,
. BFD_RELOC_SPARC_LO7,
. {* end-sanitize-v9 *}
.
. {* Bits 27..2 of the relocation address shifted right 2 bits;
. simple reloc otherwise. *}
. BFD_RELOC_MIPS_JMP,

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