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authorSteve Chamberlain <sac@cygnus>1995-08-31 03:47:46 +0000
committerSteve Chamberlain <sac@cygnus>1995-08-31 03:47:46 +0000
commit275143ebee76fb55c684e2ca3c0a3c4b3aaa76d4 (patch)
treef71f0895fc7aac1f14f277324573a79a1b36519d /bfd/coff-arm.c
parent9b73a4677d2e54ac6e6eda6e7bdb0a1215ad039d (diff)
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Wed Aug 30 20:41:27 1995 steve chamberlain <sac@slash.cygnus.com>
* coff-arm.c (deletemeacoff_arm_reloc): Deleted. (arm26): Not partial inplace. * coffcode.h (coff_compute_section_file_positions): Don't do page aligning if COFF_PAGE_SIZE isn't defined. * coffswap.h (coff_swap_scnhdr_in): Update image base correctly.
Diffstat (limited to 'bfd/coff-arm.c')
-rw-r--r--bfd/coff-arm.c132
1 files changed, 32 insertions, 100 deletions
diff --git a/bfd/coff-arm.c b/bfd/coff-arm.c
index 3136a8d..31a3994 100644
--- a/bfd/coff-arm.c
+++ b/bfd/coff-arm.c
@@ -45,6 +45,8 @@ aoutarm_fix_pcrel_26 PARAMS ((bfd *, arelent *, asymbol *, PTR,
static bfd_reloc_status_type coff_arm_reloc
PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
+
+/* Used by the assembler. */
static bfd_reloc_status_type
coff_arm_reloc (abfd, reloc_entry, symbol, data, input_section, output_bfd,
error_message)
@@ -57,7 +59,6 @@ coff_arm_reloc (abfd, reloc_entry, symbol, data, input_section, output_bfd,
char **error_message;
{
symvalue diff;
-
if (output_bfd == (bfd *) NULL)
return bfd_reloc_continue;
@@ -183,7 +184,7 @@ static reloc_howto_type aoutarm_std_reloc_howto[] =
complain_overflow_signed,
aoutarm_fix_pcrel_26 ,
"ARM26",
- true,
+ false,
0x00ffffff,
0x00ffffff,
PCRELOFFSET),
@@ -282,10 +283,34 @@ static reloc_howto_type aoutarm_std_reloc_howto[] =
};
-
#define RTYPE2HOWTO(cache_ptr, dst) \
(cache_ptr)->howto = aoutarm_std_reloc_howto + (dst)->r_type;
+#define coff_rtype_to_howto coff_arm_rtype_to_howto
+static reloc_howto_type *
+coff_arm_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
+ bfd *abfd;
+ asection *sec;
+ struct internal_reloc *rel;
+ struct coff_link_hash_entry *h;
+ struct internal_syment *sym;
+ bfd_vma *addendp;
+{
+ reloc_howto_type *howto;
+
+ howto = aoutarm_std_reloc_howto + rel->r_type;
+
+ if (rel->r_type == 11)
+ {
+ /* Gross, where can I get this from ?? */
+ struct bfd_link_info *link_info = coff_data(sec->output_section->owner)->link_info;
+ *addendp -= link_info->pe_info->image_base.value;
+ }
+ return howto;
+
+}
+/* Used by the assembler. */
+
static bfd_reloc_status_type
aoutarm_fix_pcrel_26_done (abfd, reloc_entry, symbol, data, input_section,
output_bfd, error_message)
@@ -301,6 +326,8 @@ aoutarm_fix_pcrel_26_done (abfd, reloc_entry, symbol, data, input_section,
return bfd_reloc_ok;
}
+/* Used by the assembler. */
+
static bfd_reloc_status_type
aoutarm_fix_pcrel_26 (abfd, reloc_entry, symbol, data, input_section,
output_bfd, error_message)
@@ -356,10 +383,11 @@ aoutarm_fix_pcrel_26 (abfd, reloc_entry, symbol, data, input_section,
/* Now the ARM magic... Change the reloc type so that it is marked as done.
Strictly this is only necessary if we are doing a partial relocation. */
reloc_entry->howto = &aoutarm_std_reloc_howto[7];
-
+
return flag;
}
+
static CONST struct reloc_howto_struct *
arm_reloc_type_lookup(abfd,code)
bfd *abfd;
@@ -395,100 +423,6 @@ arm_reloc_type_lookup(abfd,code)
/* The page size is a guess based on ELF. */
#define COFF_PAGE_SIZE 0x1000
-/* For some reason when using arm COFF the value stored in the .text
- section for a reference to a common symbol is the value itself plus
- any desired offset. Ian Taylor, Cygnus Support. */
-
-/* If we are producing relocateable output, we need to do some
- adjustments to the object file that are not done by the
- bfd_perform_relocation function. This function is called by every
- reloc type to make any required adjustments. */
-
-static bfd_reloc_status_type
-aacoff_arm_reloc (abfd, reloc_entry, symbol, data, input_section, output_bfd,
- error_message)
- bfd *abfd;
- arelent *reloc_entry;
- asymbol *symbol;
- PTR data;
- asection *input_section;
- bfd *output_bfd;
- char **error_message;
-{
- symvalue diff;
-
- if (output_bfd == (bfd *) NULL)
- return bfd_reloc_continue;
-
- if (bfd_is_com_section (symbol->section))
- {
- /* We are relocating a common symbol. The current value in the
- object file is ORIG + OFFSET, where ORIG is the value of the
- common symbol as seen by the object file when it was compiled
- (this may be zero if the symbol was undefined) and OFFSET is
- the offset into the common symbol (normally zero, but may be
- non-zero when referring to a field in a common structure).
- ORIG is the negative of reloc_entry->addend, which is set by
- the CALC_ADDEND macro below. We want to replace the value in
- the object file with NEW + OFFSET, where NEW is the value of
- the common symbol which we are going to put in the final
- object file. NEW is symbol->value. */
- diff = symbol->value + reloc_entry->addend;
- }
- else
- {
- /* For some reason bfd_perform_relocation always effectively
- ignores the addend for a COFF target when producing
- relocateable output. This seems to be always wrong for arm
- COFF, so we handle the addend here instead. */
- diff = reloc_entry->addend;
- }
-
-#define DOIT(x) \
- x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + diff) & howto->dst_mask))
-
- if (diff != 0)
- {
- reloc_howto_type *howto = reloc_entry->howto;
- unsigned char *addr = (unsigned char *) data + reloc_entry->address;
-
- switch (howto->size)
- {
- case 0:
- {
- char x = bfd_get_8 (abfd, addr);
- DOIT (x);
- bfd_put_8 (abfd, x, addr);
- }
- break;
-
- case 1:
- {
- short x = bfd_get_16 (abfd, addr);
- DOIT (x);
- bfd_put_16 (abfd, x, addr);
- }
- break;
-
- case 2:
- {
- long x = bfd_get_32 (abfd, addr);
- DOIT (x);
- bfd_put_32 (abfd, x, addr);
- }
- break;
-
- default:
- abort ();
- }
- }
-
- /* Now let bfd_perform_relocation finish everything up. */
- return bfd_reloc_continue;
-}
-
-
-
/* Turn a howto into a reloc nunmber */
@@ -512,8 +446,6 @@ aacoff_arm_reloc (abfd, reloc_entry, symbol, data, input_section, output_bfd,
/* We use the special COFF backend linker. */
#define coff_relocate_section _bfd_coff_generic_relocate_section
-
-
#include "coffcode.h"
static const bfd_target *