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* elf-hppa.h (elf_hppa_record_segment_addrs): New function. 

(elf_hppa_final_link): Initialize text_segment_base and
        data_segment_base.
        (elf_hppa_final_link_relocate): Handle SEGREL relocations.
This commit is contained in:
Jeff Law 1999-09-14 03:44:43 +00:00
parent 070f1aed4e
commit 2ec0dd123c
2 changed files with 66 additions and 8 deletions
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5
bfd/ChangeLog
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@ -1,5 +1,10 @@
Mon Sep 13 20:01:47 1999 Jeffrey A Law (law@cygnus.com)
* elf-hppa.h (elf_hppa_record_segment_addrs): New function.
(elf_hppa_final_link): Initialize text_segment_base and
data_segment_base.
(elf_hppa_final_link_relocate): Handle SEGREL relocations.
* elf-hppa.h (elf_hppa_final_link): Remove unused variables.
(elf_hppa_final_link_relocate): Likewise.
(elf_hppa_relocate_insn): Likewise.

69
bfd/elf-hppa.h
View File

@ -69,6 +69,9 @@ static boolean elf_hppa_unmark_useless_dynamic_symbols
static boolean elf_hppa_remark_useless_dynamic_symbols
PARAMS ((struct elf_link_hash_entry *, PTR));
static void elf_hppa_record_segment_addrs
PARAMS ((bfd *, asection *, PTR));
/* ELF/PA relocation howto entries. */
static reloc_howto_type elf_hppa_howto_table[ELF_HOWTO_TABLE_SIZE] =
@ -810,6 +813,30 @@ elf_hppa_remark_useless_dynamic_symbols (h, data)
return true;
}
/* Record the lowest address for the data and text segments. */
static void
elf_hppa_record_segment_addrs (abfd, section, data)
bfd *abfd ATTRIBUTE_UNUSED;
asection *section;
PTR data;
{
struct elf64_hppa_link_hash_table *hppa_info;
bfd_vma value;
hppa_info = (struct elf64_hppa_link_hash_table *)data;
value = section->vma - section->filepos;
if ((section->flags & (SEC_ALLOC | SEC_LOAD | SEC_READONLY)
== (SEC_ALLOC | SEC_LOAD | SEC_READONLY))
&& value < hppa_info->text_segment_base)
hppa_info->text_segment_base = value;
else if ((section->flags & (SEC_ALLOC | SEC_LOAD | SEC_READONLY)
== (SEC_ALLOC | SEC_LOAD))
&& value < hppa_info->data_segment_base)
hppa_info->data_segment_base = value;
}
/* Called after we have seen all the input files/sections, but before
final symbol resolution and section placement has been determined.
@ -852,6 +879,12 @@ elf_hppa_final_link (abfd, info)
_bfd_set_gp_value (abfd, gp_val);
}
/* We need to know the base of the text and data segments so that we
can perform SEGREL relocations. We will recore the base addresses
when we encounter the first SEGREL relocation. */
elf64_hppa_hash_table (info)->text_segment_base = (bfd_vma)-1;
elf64_hppa_hash_table (info)->data_segment_base = (bfd_vma)-1;
/* HP's shared libraries have references to symbols that are not
defined anywhere. The generic ELF BFD linker code will complaim
about such symbols.
@ -1097,13 +1130,6 @@ elf_hppa_final_link_relocate (rel, input_bfd, output_bfd,
insn = bfd_get_32 (input_bfd, hit_data);
/* For reference here a quick summary of the relocations found in the
HPUX 11.00 PA64 .o and .a files, but not yet implemented. This is mostly
a guide to help prioritize what relocation support is worked on first.
The list will be deleted eventually.
27210 R_PARISC_SEGREL32 */
switch (r_type)
{
case R_PARISC_NONE:
@ -1534,7 +1560,34 @@ elf_hppa_final_link_relocate (rel, input_bfd, output_bfd,
return bfd_reloc_ok;
case R_PARISC_SEGREL32:
return bfd_reloc_ok;
case R_PARISC_SEGREL64:
{
/* If this is the first SEGREL relocation, then initialize
the segment base values. */
if (hppa_info->text_segment_base == (bfd_vma) -1)
bfd_map_over_sections (output_bfd, elf_hppa_record_segment_addrs,
elf64_hppa_hash_table (info));
/* VALUE holds the absolute address. We want to include the
addend, then turn it into a segment relative address.
The segment is derived from SYM_SEC. We assume that there are
only two segments of note in the resulting executable/shlib.
A readonly segment (.text) and a readwrite segment (.data). */
value += addend;
if (sym_sec->flags & SEC_CODE)
value -= hppa_info->text_segment_base;
else
value -= hppa_info->data_segment_base;
if (r_type == R_PARISC_SEGREL32)
bfd_put_32 (input_bfd, value, hit_data);
else
bfd_put_64 (input_bfd, value, hit_data);
return bfd_reloc_ok;
}
/* Something we don't know how to handle. */
default: