along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-/* $Id$ */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
-
+#include "seclet.h"
#include "bout.h"
#include "aout/stab_gnu.h"
#include "libaout.h" /* BFD a.out internal data structures */
+
+extern bfd_error_vector_type bfd_error_vector;
PROTO (static boolean, b_out_squirt_out_relocs,(bfd *abfd, asection *section));
PROTO (static bfd_target *, b_out_callback, (bfd *));
execp->a_talign = bytes->e_talign[0];
execp->a_dalign = bytes->e_dalign[0];
execp->a_balign = bytes->e_balign[0];
+ execp->a_relaxable = bytes->e_relaxable[0];
}
/* Swaps the information in an internal exec header structure into the
bytes->e_talign[0] = execp->a_talign;
bytes->e_dalign[0] = execp->a_dalign;
bytes->e_balign[0] = execp->a_balign;
- bytes->e_unused[0] = 0; /* Clean structs are godly structs */
+ bytes->e_relaxable[0] = execp->a_relaxable;
}
obj_textsec (abfd)->rel_filepos = N_TROFF(*execp);
obj_datasec (abfd)->rel_filepos = N_DROFF(*execp);
- adata(abfd).page_size = 1; /* Not applicable. */
+ adata(abfd).page_size = 1; /* Not applicable. */
adata(abfd).segment_size = 1; /* Not applicable. */
adata(abfd).exec_bytes_size = EXEC_BYTES_SIZE;
+ if (execp->a_relaxable)
+ abfd->flags |= BFD_IS_RELAXABLE;
return abfd->xvec;
}
bout_swap_exec_header_out (abfd, exec_hdr (abfd), &swapped_hdr);
- bfd_seek (abfd, 0L, SEEK_SET);
+ bfd_seek (abfd, (file_ptr) 0, SEEK_SET);
bfd_write ((PTR) &swapped_hdr, 1, EXEC_BYTES_SIZE, abfd);
/* Now write out reloc info, followed by syms and strings */
if (bfd_get_symcount (abfd) != 0)
{
- bfd_seek (abfd,
- (long)(N_SYMOFF(*exec_hdr(abfd))), SEEK_SET);
+ bfd_seek (abfd, (file_ptr)(N_SYMOFF(*exec_hdr(abfd))), SEEK_SET);
aout_32_write_syms (abfd);
- bfd_seek (abfd, (long)(N_TROFF(*exec_hdr(abfd))), SEEK_SET);
+ bfd_seek (abfd, (file_ptr)(N_TROFF(*exec_hdr(abfd))), SEEK_SET);
if (!b_out_squirt_out_relocs (abfd, obj_textsec (abfd))) return false;
- bfd_seek (abfd, (long)(N_DROFF(*exec_hdr(abfd))), SEEK_SET);
+ bfd_seek (abfd, (file_ptr)(N_DROFF(*exec_hdr(abfd))), SEEK_SET);
if (!b_out_squirt_out_relocs (abfd, obj_datasec (abfd))) return false;
}
/** Some reloc hackery */
#define CALLS 0x66003800 /* Template for 'calls' instruction */
-#define BAL 0x0b000000 /* Template for 'bal' instruction */
+#define BAL 0x0b000000 /* Template for 'bal' instruction */
+#define BALX 0x85000000 /* Template for 'balx' instruction */
#define BAL_MASK 0x00ffffff
+#define CALL 0x09000000
+#define PCREL13_MASK 0x1fff
+/* Magic to turn callx into calljx */
+static bfd_reloc_status_type
+DEFUN (calljx_callback, (abfd, reloc_entry, src, dst, input_section),
+ bfd *abfd AND
+ arelent *reloc_entry AND
+ PTR src AND
+ PTR dst AND
+
+ asection *input_section)
+{
+ int word = bfd_get_32(abfd, src);
+ asymbol *symbol_in = *(reloc_entry->sym_ptr_ptr);
+ aout_symbol_type *symbol = aout_symbol(symbol_in);
+
+ if (IS_CALLNAME(symbol->other))
+ {
+
+ aout_symbol_type *balsym = symbol+1;
+ int inst = bfd_get_32(abfd, (bfd_byte *) src-4);
+ /* The next symbol should be an N_BALNAME */
+ BFD_ASSERT(IS_BALNAME(balsym->other));
+ inst &= BAL_MASK;
+ inst |= BALX;
+ bfd_put_32(abfd, inst, (bfd_byte *) dst-4);
+ symbol = balsym;
+ }
+
+ word += symbol->symbol.section->output_offset +
+ symbol->symbol.section->output_section->vma +
+ symbol->symbol.value + reloc_entry->addend;
+
+ bfd_put_32(abfd, word, dst);
+ return bfd_reloc_ok;
+}
+
+/* Magic to turn call into callj */
static bfd_reloc_status_type
-callj_callback(abfd, reloc_entry, symbol_in, data, input_section)
-bfd *abfd;
-arelent *reloc_entry;
-asymbol *symbol_in;
-PTR data;
-asection *input_section;
+DEFUN (callj_callback, (abfd, reloc_entry, data, srcidx,dstidx, input_section),
+ bfd *abfd AND
+ arelent *reloc_entry AND
+ PTR data AND
+ unsigned int srcidx AND
+ unsigned int dstidx AND
+ asection *input_section )
{
- int word = bfd_get_32(abfd, (bfd_byte *)data + reloc_entry->address);
+ int word = bfd_get_32(abfd, (bfd_byte *) data + srcidx);
+ asymbol *symbol_in = *(reloc_entry->sym_ptr_ptr);
+
aout_symbol_type *symbol = aout_symbol(symbol_in);
- if (IS_OTHER(symbol->other)) {
+ if (IS_OTHER(symbol->other))
+ {
/* Call to a system procedure - replace code with system
procedure number */
word = CALLS | (symbol->other - 1);
- bfd_put_32(abfd, word, (bfd_byte *)data + reloc_entry->address); /* rplc */
- return bfd_reloc_ok;
+
}
- if (IS_CALLNAME(symbol->other)) {
+ else if (IS_CALLNAME(symbol->other))
+ {
aout_symbol_type *balsym = symbol+1;
/* The next symbol should be an N_BALNAME */
BFD_ASSERT(IS_BALNAME(balsym->other));
/* We are calling a leaf - so replace the call instruction
with a bal */
-
+
word = BAL |
- (((word & BAL_MASK) +
- balsym->symbol.section->output_offset +
- balsym->symbol.section->output_section->vma+
- balsym->symbol.value + reloc_entry->addend -
- ( input_section->output_section->vma + input_section->output_offset))
- & BAL_MASK);
-
- bfd_put_32(abfd, word, (bfd_byte *) data + reloc_entry->address); /* rplc */
- return bfd_reloc_ok;
+ (((word & BAL_MASK) +
+ balsym->symbol.section->output_offset +
+ balsym->symbol.section->output_section->vma+
+ balsym->symbol.value + reloc_entry->addend - dstidx -
+ ( input_section->output_section->vma + input_section->output_offset))
+ & BAL_MASK);
+
+
}
- return bfd_reloc_continue;
+ else
+ {
+ word = CALL |
+ (((word & BAL_MASK) +
+ symbol->symbol.section->output_offset +
+ symbol->symbol.section->output_section->vma+
+ symbol->symbol.value + reloc_entry->addend - dstidx -
+ ( input_section->output_section->vma + input_section->output_offset))
+ & BAL_MASK);
+ }
+ bfd_put_32(abfd, word, (bfd_byte *) data + dstidx);
+ return bfd_reloc_ok;
}
-/* type rshift size bitsize pcrel bitpos absolute overflow check*/
+/* type rshift size bitsize pcrel bitpos absolute overflow check*/
+#define ABS32CODE 0
+#define ABS32CODE_SHRUNK 1
+#define PCREL24 2
+#define CALLJ 3
+#define ABS32 4
+#define PCREL13 5
+#define ABS32_MAYBE_RELAXABLE 1
+#define ABS32_WAS_RELAXABLE 2
+
+#define ALIGNER 10
+#define ALIGNDONE 11
static reloc_howto_type howto_reloc_callj =
-HOWTO( 3, 0, 2, 24, true, 0, true, true, callj_callback,"callj", true, 0x00ffffff, 0x00ffffff,false);
+HOWTO(CALLJ, 0, 2, 24, true, 0, true, true, 0,"callj", true, 0x00ffffff, 0x00ffffff,false);
static reloc_howto_type howto_reloc_abs32 =
-HOWTO(1, 0, 2, 32, false, 0, true, true,0,"abs32", true, 0xffffffff,0xffffffff,false);
+HOWTO(ABS32, 0, 2, 32, false, 0, true, true,0,"abs32", true, 0xffffffff,0xffffffff,false);
static reloc_howto_type howto_reloc_pcrel24 =
-HOWTO(2, 0, 2, 24, true, 0, true, true,0,"pcrel24", true, 0x00ffffff,0x00ffffff,false);
+HOWTO(PCREL24, 0, 2, 24, true, 0, true, true,0,"pcrel24", true, 0x00ffffff,0x00ffffff,false);
+
+static reloc_howto_type howto_reloc_pcrel13 =
+HOWTO(PCREL13, 0, 2, 13, true, 0, true, true,0,"pcrel13", true, 0x00001fff,0x00001fff,false);
+
+
+static reloc_howto_type howto_reloc_abs32codeshrunk =
+HOWTO(ABS32CODE_SHRUNK, 0, 2, 24, true, 0, true, true, 0,"callx->callj", true, 0x00ffffff, 0x00ffffff,false);
+
+static reloc_howto_type howto_reloc_abs32code =
+HOWTO(ABS32CODE, 0, 2, 32, false, 0, true, true,0,"callx", true, 0xffffffff,0xffffffff,false);
+
+static reloc_howto_type howto_align_table[] = {
+ HOWTO (ALIGNER, 0, 0x1, 0, false, 0, false, false, 0, "align16", false, 0, 0, false),
+ HOWTO (ALIGNER, 0, 0x3, 0, false, 0, false, false, 0, "align32", false, 0, 0, false),
+ HOWTO (ALIGNER, 0, 0x7, 0, false, 0, false, false, 0, "align64", false, 0, 0, false),
+ HOWTO (ALIGNER, 0, 0xf, 0, false, 0, false, false, 0, "align128", false, 0, 0, false),
+};
+
+static reloc_howto_type howto_done_align_table[] = {
+ HOWTO (ALIGNDONE, 0x1, 0x1, 0, false, 0, false, false, 0, "donealign16", false, 0, 0, false),
+ HOWTO (ALIGNDONE, 0x3, 0x3, 0, false, 0, false, false, 0, "donealign32", false, 0, 0, false),
+ HOWTO (ALIGNDONE, 0x7, 0x7, 0, false, 0, false, false, 0, "donealign64", false, 0, 0, false),
+ HOWTO (ALIGNDONE, 0xf, 0xf, 0, false, 0, false, false, 0, "donealign128", false, 0, 0, false),
+};
+
+static reloc_howto_type *
+b_out_reloc_type_lookup (abfd, code)
+ bfd *abfd;
+ bfd_reloc_code_real_type code;
+{
+ switch (code)
+ {
+ default:
+ return 0;
+ case BFD_RELOC_I960_CALLJ:
+ return &howto_reloc_callj;
+ case BFD_RELOC_32:
+ return &howto_reloc_abs32;
+ case BFD_RELOC_24_PCREL:
+ return &howto_reloc_pcrel24;
+ }
+}
/* Allocate enough room for all the reloc entries, plus pointers to them all */
register struct relocation_info *rptr;
unsigned int counter ;
arelent *cache_ptr ;
- int extern_mask, pcrel_mask, callj_mask;
-
+ int extern_mask, pcrel_mask, callj_mask, length_shift;
+ int incode_mask;
+ int size_mask;
+ bfd_vma prev_addr = 0;
unsigned int count;
size_t reloc_size;
struct relocation_info *relocs;
if (!aout_32_slurp_symbol_table (abfd)) return false;
if (asect == obj_datasec (abfd)) {
- reloc_size = exec_hdr(abfd)->a_drsize;
- goto doit;
- }
+ reloc_size = exec_hdr(abfd)->a_drsize;
+ goto doit;
+ }
if (asect == obj_textsec (abfd)) {
- reloc_size = exec_hdr(abfd)->a_trsize;
- goto doit;
- }
+ reloc_size = exec_hdr(abfd)->a_trsize;
+ goto doit;
+ }
bfd_error = invalid_operation;
return false;
doit:
- bfd_seek (abfd, (long)(asect->rel_filepos), SEEK_SET);
+ bfd_seek (abfd, (file_ptr)(asect->rel_filepos), SEEK_SET);
count = reloc_size / sizeof (struct relocation_info);
relocs = (struct relocation_info *) bfd_xmalloc (reloc_size);
if (!relocs) {
- bfd_error = no_memory;
- return false;
- }
+ bfd_error = no_memory;
+ return false;
+ }
reloc_cache = (arelent *) bfd_xmalloc ((count+1) * sizeof (arelent));
if (!reloc_cache) {
- free ((char*)relocs);
- bfd_error = no_memory;
- return false;
- }
+ free ((char*)relocs);
+ bfd_error = no_memory;
+ return false;
+ }
if (bfd_read ((PTR) relocs, 1, reloc_size, abfd) != reloc_size) {
- bfd_error = system_call_error;
- free (reloc_cache);
- free (relocs);
- return false;
- }
+ bfd_error = system_call_error;
+ free (reloc_cache);
+ free (relocs);
+ return false;
+ }
if (abfd->xvec->header_byteorder_big_p) {
- /* big-endian bit field allocation order */
- pcrel_mask = 0x80;
- extern_mask = 0x10;
- callj_mask = 0x02;
- } else {
- /* little-endian bit field allocation order */
- pcrel_mask = 0x01;
- extern_mask = 0x08;
- callj_mask = 0x40;
- }
+ /* big-endian bit field allocation order */
+ pcrel_mask = 0x80;
+ extern_mask = 0x10;
+ incode_mask = 0x08;
+ callj_mask = 0x02;
+ size_mask = 0x20;
+ length_shift = 5;
+ } else {
+ /* little-endian bit field allocation order */
+ pcrel_mask = 0x01;
+ extern_mask = 0x08;
+ incode_mask = 0x10;
+ callj_mask = 0x40;
+ size_mask = 0x02;
+ length_shift = 1;
+ }
for (rptr = relocs, cache_ptr = reloc_cache, counter = 0;
counter < count;
unsigned char *raw = (unsigned char *)rptr;
unsigned int symnum;
cache_ptr->address = bfd_h_get_32 (abfd, raw + 0);
+ cache_ptr->howto = 0;
if (abfd->xvec->header_byteorder_big_p)
{
symnum = (raw[4] << 16) | (raw[5] << 8) | raw[6];
if (raw[7] & extern_mask)
{
- /* if this is set then the r_index is a index into the symbol table;
- * if the bit is not set then r_index contains a section map.
- * we either fill in the sym entry with a pointer to the symbol,
- * or point to the correct section
- */
- cache_ptr->sym_ptr_ptr = symbols + symnum;
- cache_ptr->addend = 0;
- } else
+ /* if this is set then the r_index is a index into the symbol table;
+ * if the bit is not set then r_index contains a section map.
+ * we either fill in the sym entry with a pointer to the symbol,
+ * or point to the correct section
+ */
+ cache_ptr->sym_ptr_ptr = symbols + symnum;
+ cache_ptr->addend = 0;
+ } else
+ {
+ /* in a.out symbols are relative to the beginning of the
+ * file rather than sections ?
+ * (look in translate_from_native_sym_flags)
+ * the reloc entry addend has added to it the offset into the
+ * file of the data, so subtract the base to make the reloc
+ * section relative */
+ int s;
+ {
+ /* sign-extend symnum from 24 bits to whatever host uses */
+ s = symnum;
+ if (s & (1 << 23))
+ s |= (~0) << 24;
+ }
+ cache_ptr->sym_ptr_ptr = (asymbol **)NULL;
+ switch (s)
{
- /* in a.out symbols are relative to the beginning of the
- * file rather than sections ?
- * (look in translate_from_native_sym_flags)
- * the reloc entry addend has added to it the offset into the
- * file of the data, so subtract the base to make the reloc
- * section relative */
- cache_ptr->sym_ptr_ptr = (asymbol **)NULL;
- switch (symnum)
+ case N_TEXT:
+ case N_TEXT | N_EXT:
+ cache_ptr->sym_ptr_ptr = obj_textsec(abfd)->symbol_ptr_ptr;
+ cache_ptr->addend = - obj_textsec(abfd)->vma;
+ break;
+ case N_DATA:
+ case N_DATA | N_EXT:
+ cache_ptr->sym_ptr_ptr = obj_datasec(abfd)->symbol_ptr_ptr;
+ cache_ptr->addend = - obj_datasec(abfd)->vma;
+ break;
+ case N_BSS:
+ case N_BSS | N_EXT:
+ cache_ptr->sym_ptr_ptr = obj_bsssec(abfd)->symbol_ptr_ptr;
+ cache_ptr->addend = - obj_bsssec(abfd)->vma;
+ break;
+ case N_ABS:
+ case N_ABS | N_EXT:
+ cache_ptr->sym_ptr_ptr = obj_bsssec(abfd)->symbol_ptr_ptr;
+ cache_ptr->addend = 0;
+ break;
+ case -2: /* .align */
+ if (raw[7] & pcrel_mask)
+ {
+ cache_ptr->howto = &howto_align_table[(raw[7] >> length_shift) & 3];
+ cache_ptr->sym_ptr_ptr = &bfd_abs_symbol;
+ }
+ else
{
- case N_TEXT:
- case N_TEXT | N_EXT:
- cache_ptr->sym_ptr_ptr = obj_textsec(abfd)->symbol_ptr_ptr;
- cache_ptr->addend = - obj_textsec(abfd)->vma;
- break;
- case N_DATA:
- case N_DATA | N_EXT:
- cache_ptr->sym_ptr_ptr = obj_datasec(abfd)->symbol_ptr_ptr;
- cache_ptr->addend = - obj_datasec(abfd)->vma;
- break;
- case N_BSS:
- case N_BSS | N_EXT:
- cache_ptr->sym_ptr_ptr = obj_bsssec(abfd)->symbol_ptr_ptr;
- cache_ptr->addend = - obj_bsssec(abfd)->vma;
- break;
- case N_ABS:
- case N_ABS | N_EXT:
- BFD_ASSERT(0);
- break;
- default:
- BFD_ASSERT(0);
- break;
- }
+ /* .org? */
+ abort ();
+ }
+ cache_ptr->addend = 0;
+ break;
+ default:
+ BFD_ASSERT(0);
+ break;
+ }
- }
+ }
/* the i960 only has a few relocation types:
abs 32-bit and pcrel 24bit. except for callj's! */
- if (raw[7] & callj_mask)
- cache_ptr->howto = &howto_reloc_callj;
+ if (cache_ptr->howto != 0)
+ ;
+ else if (raw[7] & callj_mask)
+ {
+ cache_ptr->howto = &howto_reloc_callj;
+ }
else if ( raw[7] & pcrel_mask)
- cache_ptr->howto = &howto_reloc_pcrel24;
- else
- cache_ptr->howto = &howto_reloc_abs32;
+ {
+ if (raw[7] & size_mask)
+ cache_ptr->howto = &howto_reloc_pcrel13;
+ else
+ cache_ptr->howto = &howto_reloc_pcrel24;
+ }
+ else
+ {
+ if (raw[7] & incode_mask)
+ {
+ cache_ptr->howto = &howto_reloc_abs32code;
+ }
+ else
+ {
+ cache_ptr->howto = &howto_reloc_abs32;
+ }
+ }
+ if (cache_ptr->address < prev_addr)
+ {
+ /* Ouch! this reloc is out of order, insert into the right place
+ */
+ arelent tmp;
+ arelent *cursor = cache_ptr-1;
+ bfd_vma stop = cache_ptr->address;
+ tmp = *cache_ptr;
+ while (cursor->address > stop && cursor >= reloc_cache)
+ {
+ cursor[1] = cursor[0];
+ cursor--;
+ }
+ cursor[1] = tmp;
+ }
+ else
+ {
+ prev_addr = cache_ptr->address;
+ }
}
arelent **generic;
int r_extern;
int r_idx;
- int r_addend;
-
+ int incode_mask;
+ int len_1;
unsigned int count = section->reloc_count;
struct relocation_info *native, *natptr;
size_t natsize = count * sizeof (struct relocation_info);
generic = section->orelocation;
native = ((struct relocation_info *) bfd_xmalloc (natsize));
if (!native) {
- bfd_error = no_memory;
- return false;
- }
+ bfd_error = no_memory;
+ return false;
+ }
if (abfd->xvec->header_byteorder_big_p)
{
pcrel_mask = 0x80;
extern_mask = 0x10;
len_2 = 0x40;
+ len_1 = 0x20;
callj_mask = 0x02;
+ incode_mask = 0x08;
}
-else
+ else
{
/* Little-endian bit field allocation order */
pcrel_mask = 0x01;
extern_mask = 0x08;
len_2 = 0x04;
+ len_1 = 0x02;
callj_mask = 0x40;
+ incode_mask = 0x10;
}
for (natptr = native; count > 0; --count, ++natptr, ++generic)
}
else if (g->howto == &howto_reloc_pcrel24)
{
- raw[7] = pcrel_mask +len_2;
+ raw[7] = pcrel_mask + len_2;
+ }
+ else if (g->howto == &howto_reloc_pcrel13)
+ {
+ raw[7] = pcrel_mask + len_1;
+ }
+ else if (g->howto == &howto_reloc_abs32code)
+ {
+ raw[7] = len_2 + incode_mask;
}
else {
- raw[7] = len_2;
- }
+ raw[7] = len_2;
+ }
if (output_section == &bfd_com_section
|| output_section == &bfd_abs_section
|| output_section == &bfd_und_section)
{
- /* Fill in symbol */
- r_extern = 1;
- r_idx = stoi((*(g->sym_ptr_ptr))->flags);
+
+ if (bfd_abs_section.symbol == sym)
+ {
+ /* Whoops, looked like an abs symbol, but is really an offset
+ from the abs section */
+ r_idx = 0;
+ r_extern = 0;
+ }
+ else
+ {
+ /* Fill in symbol */
+
+ r_extern = 1;
+ r_idx = stoi((*(g->sym_ptr_ptr))->flags);
+ }
}
else
{
}
if (abfd->xvec->header_byteorder_big_p) {
- raw[4] = (unsigned char) (r_idx >> 16);
- raw[5] = (unsigned char) (r_idx >> 8);
- raw[6] = (unsigned char) (r_idx );
- } else {
- raw[6] = (unsigned char) (r_idx >> 16);
- raw[5] = (unsigned char) (r_idx>> 8);
- raw[4] = (unsigned char) (r_idx );
- }
-if (r_extern)
- raw[7] |= extern_mask;
+ raw[4] = (unsigned char) (r_idx >> 16);
+ raw[5] = (unsigned char) (r_idx >> 8);
+ raw[6] = (unsigned char) (r_idx );
+ } else {
+ raw[6] = (unsigned char) (r_idx >> 16);
+ raw[5] = (unsigned char) (r_idx>> 8);
+ raw[4] = (unsigned char) (r_idx );
+ }
+ if (r_extern)
+ raw[7] |= extern_mask;
}
if (bfd_write ((PTR) native, 1, natsize, abfd) != natsize) {
- free((PTR)native);
- return false;
- }
+ free((PTR)native);
+ return false;
+ }
free ((PTR)native);
return true;
+/************************************************************************/
+static bfd_vma
+DEFUN(get_value,(reloc, seclet),
+ arelent *reloc AND
+ bfd_seclet_type *seclet)
+{
+ bfd_vma value;
+ asymbol *symbol = *(reloc->sym_ptr_ptr);
+
+ /* A symbol holds a pointer to a section, and an offset from the
+ base of the section. To relocate, we find where the section will
+ live in the output and add that in */
+
+ if (symbol->section == &bfd_und_section)
+ {
+ /* Ouch, this is an undefined symbol.. */
+ bfd_error_vector.undefined_symbol(reloc, seclet);
+ value = symbol->value;
+ }
+ else
+ {
+ value = symbol->value +
+ symbol->section->output_offset +
+ symbol->section->output_section->vma;
+ }
+
+ /* Add the value contained in the relocation */
+ value += (short)((reloc->addend) & 0xffff);
+
+ return value;
+}
+
+static void
+DEFUN(perform_slip,(s, slip, input_section, value),
+ asymbol **s AND
+ unsigned int slip AND
+ asection *input_section AND
+ bfd_vma value)
+{
+
+ /* Find all symbols past this point, and make them know
+ what's happened */
+ while (*s)
+ {
+ asymbol *p = *s;
+ if (p->section == input_section)
+ {
+ /* This was pointing into this section, so mangle it */
+ if (p->value > value)
+ {
+ p->value -=slip;
+ }
+ }
+ s++;
+
+ }
+}
+#if 1
+/* This routine works out if the thing we want to get to can be
+ reached with a 24bit offset instead of a 32 bit one.
+ If it can, then it changes the amode */
+
+static int
+DEFUN(abs32code,(input_section, symbols, r, shrink),
+ asection *input_section AND
+ asymbol **symbols AND
+ arelent *r AND
+ unsigned int shrink)
+{
+ bfd_vma value = get_value(r,0);
+ bfd_vma dot = input_section->output_section->vma + input_section->output_offset + r->address;
+ bfd_vma gap;
+
+ /* See if the address we're looking at within 2^23 bytes of where
+ we are, if so then we can use a small branch rather than the
+ jump we were going to */
+
+ gap = value - (dot - shrink);
+
+
+ if (-1<<23 < (long)gap && (long)gap < 1<<23 )
+ {
+ /* Change the reloc type from 32bitcode possible 24, to 24bit
+ possible 32 */
+
+ r->howto = &howto_reloc_abs32codeshrunk;
+ /* The place to relc moves back by four bytes */
+ r->address -=4;
+
+ /* This will be four bytes smaller in the long run */
+ shrink += 4 ;
+ perform_slip(symbols, 4, input_section, r->address-shrink +4);
+ }
+ return shrink;
+}
+
+static int
+DEFUN(aligncode,(input_section, symbols, r, shrink),
+ asection *input_section AND
+ asymbol **symbols AND
+ arelent *r AND
+ unsigned int shrink)
+{
+ bfd_vma dot = input_section->output_section->vma + input_section->output_offset + r->address;
+ bfd_vma gap;
+ bfd_vma old_end;
+ bfd_vma new_end;
+ int shrink_delta;
+ int size = r->howto->size;
+
+ /* Reduce the size of the alignment so that it's still aligned but
+ smaller - the current size is already the same size as or bigger
+ than the alignment required. */
+
+ /* calculate the first byte following the padding before we optimize */
+ old_end = ((dot + size ) & ~size) + size+1;
+ /* work out where the new end will be - remember that we're smaller
+ than we used to be */
+ new_end = ((dot - shrink + size) & ~size);
+
+ /* This is the new end */
+ gap = old_end - ((dot + size) & ~size);
+
+ shrink_delta = (old_end - new_end) - shrink;
+
+ if (shrink_delta)
+ {
+ /* Change the reloc so that it knows how far to align to */
+ r->howto = howto_done_align_table + (r->howto - howto_align_table);
+
+ /* Encode the stuff into the addend - for future use we need to
+ know how big the reloc used to be */
+ r->addend = old_end ;
+
+ /* This will be N bytes smaller in the long run, adjust all the symbols */
+ perform_slip(symbols, shrink_delta, input_section, r->address - shrink );
+ shrink += shrink_delta;
+ }
+ return shrink;
+}
+
+
+static boolean
+DEFUN(b_out_relax_section,(abfd, i, symbols),
+ bfd *abfd AND
+ asection *i AND
+ asymbol **symbols)
+{
+
+ /* Get enough memory to hold the stuff */
+ bfd *input_bfd = i->owner;
+ asection *input_section = i;
+ int shrink = 0 ;
+ boolean new = false;
+
+ bfd_size_type reloc_size = bfd_get_reloc_upper_bound(input_bfd,
+ input_section);
+ arelent **reloc_vector = (arelent **)alloca(reloc_size);
+
+ /* Get the relocs and think about them */
+ if (bfd_canonicalize_reloc(input_bfd,
+ input_section,
+ reloc_vector,
+ symbols))
+ {
+ arelent **parent;
+ for (parent = reloc_vector; *parent; parent++)
+ {
+ arelent *r = *parent;
+ switch (r->howto->type) {
+ case ALIGNER:
+ /* An alignment reloc */
+ shrink = aligncode(input_section, symbols, r,shrink);
+ new=true;
+ break;
+ case ABS32CODE:
+ /* A 32bit reloc in an addressing mode */
+ shrink = abs32code(input_section, symbols, r,shrink);
+ new=true;
+ break;
+ case ABS32CODE_SHRUNK:
+ shrink+=4;
+ break;
+ }
+ }
+ }
+ input_section->_cooked_size = input_section->_raw_size - shrink;
+
+ return new;
+}
+
+#endif
+static bfd_byte *
+DEFUN(b_out_get_relocated_section_contents,(in_abfd, seclet, data),
+ bfd *in_abfd AND
+ bfd_seclet_type *seclet AND
+ bfd_byte *data)
+
+{
+ /* Get enough memory to hold the stuff */
+ bfd *input_bfd = seclet->u.indirect.section->owner;
+ asection *input_section = seclet->u.indirect.section;
+ bfd_size_type reloc_size = bfd_get_reloc_upper_bound(input_bfd,
+ input_section);
+ arelent **reloc_vector = (arelent **)alloca(reloc_size);
+
+ /* read in the section */
+ bfd_get_section_contents(input_bfd,
+ input_section,
+ data,
+ 0,
+ input_section->_raw_size);
+
+
+ if (bfd_canonicalize_reloc(input_bfd,
+ input_section,
+ reloc_vector,
+ seclet->u.indirect.symbols) )
+ {
+ arelent **parent = reloc_vector;
+ arelent *reloc ;
+
+
+
+ unsigned int dst_address = 0;
+ unsigned int src_address = 0;
+ unsigned int run;
+ unsigned int idx;
+
+ /* Find how long a run we can do */
+ while (dst_address < seclet->size)
+ {
+
+ reloc = *parent;
+ if (reloc)
+ {
+ /* Note that the relaxing didn't tie up the addresses in the
+ relocation, so we use the original address to work out the
+ run of non-relocated data */
+ run = reloc->address - src_address;
+ parent++;
+
+ }
+ else
+ {
+ run = seclet->size - dst_address;
+ }
+ /* Copy the bytes */
+ for (idx = 0; idx < run; idx++)
+ {
+ data[dst_address++] = data[src_address++];
+ }
+
+ /* Now do the relocation */
+
+ if (reloc)
+ {
+ switch (reloc->howto->type)
+ {
+ case ABS32CODE:
+ calljx_callback(in_abfd, reloc, src_address + data, dst_address+data, input_section);
+ src_address+=4;
+ dst_address+=4;
+ break;
+ case ABS32:
+ bfd_put_32(in_abfd, get_value(reloc, seclet), data+dst_address);
+ src_address+=4;
+ dst_address+=4;
+ break;
+ case CALLJ:
+ callj_callback(in_abfd, reloc ,data,src_address,dst_address,input_section);
+ src_address+=4;
+ dst_address+=4;
+ break;
+ case ALIGNDONE:
+ src_address = reloc->addend;
+ dst_address = (dst_address + reloc->howto->size) & ~reloc->howto->size;
+ break;
+ case ABS32CODE_SHRUNK:
+ /* This used to be a callx, but we've found out that a
+ callj will reach, so do the right thing */
+ callj_callback(in_abfd, reloc,data,src_address+4, dst_address,input_section);
+
+ dst_address+=4;
+ src_address+=8;
+ break;
+ case PCREL24:
+ {
+ long int word = bfd_get_32(in_abfd, data+src_address);
+ asymbol *symbol = *(reloc->sym_ptr_ptr);
+ word = (word & ~BAL_MASK) |
+ (((word & BAL_MASK) +
+ symbol->section->output_offset +
+ symbol->section->output_section->vma+
+ symbol->value + reloc->addend - dst_address -
+ ( input_section->output_section->vma + input_section->output_offset))
+ & BAL_MASK);
+
+ bfd_put_32(in_abfd,word, data+dst_address);
+ dst_address+=4;
+ src_address+=4;
+
+ }
+ break;
+
+ case PCREL13:
+ {
+ long int word = bfd_get_32(in_abfd, data+src_address);
+ asymbol *symbol = *(reloc->sym_ptr_ptr);
+ word = (word & ~PCREL13_MASK) |
+ (((word & PCREL13_MASK) +
+ symbol->section->output_offset +
+ symbol->section->output_section->vma+
+ symbol->value + reloc->addend - dst_address -
+ ( input_section->output_section->vma + input_section->output_offset))
+ & PCREL13_MASK);
+
+ bfd_put_32(in_abfd,word, data+dst_address);
+ dst_address+=4;
+ src_address+=4;
+
+ }
+ break;
+
+ default:
+
+ abort();
+ }
+ }
+ }
+ }
+ return data;
+}
+/***********************************************************************/
/* Build the transfer vectors for Big and Little-Endian B.OUT files. */
#define aout_32_bfd_debug_info_end bfd_void
#define aout_32_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
-#define aout_32_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
-#define aout_32_bfd_relax_section bfd_generic_relax_section
+#define aout_32_bfd_get_relocated_section_contents b_out_get_relocated_section_contents
+#define aout_32_bfd_relax_section b_out_relax_section
+
bfd_target b_out_vec_big_host =
{
"b.out.big", /* name */
HAS_LINENO | HAS_DEBUG |
HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT ),
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
+ '_', /* symbol leading char */
' ', /* ar_pad_char */
16, /* ar_max_namelen */
- 2, /* minumum alignment power */
-
-_do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* data */
-_do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */
- {_bfd_dummy_target, b_out_object_p, /* bfd_check_format */
- bfd_generic_archive_p, _bfd_dummy_target},
- {bfd_false, b_out_mkobject, /* bfd_set_format */
- _bfd_generic_mkarchive, bfd_false},
- {bfd_false, b_out_write_object_contents, /* bfd_write_contents */
- _bfd_write_archive_contents, bfd_false},
-
- JUMP_TABLE(aout_32)
+ 2, /* minumum alignment power */
+
+ _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16, /* data */
+ _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16, /* hdrs */
+ {_bfd_dummy_target, b_out_object_p, /* bfd_check_format */
+ bfd_generic_archive_p, _bfd_dummy_target},
+ {bfd_false, b_out_mkobject, /* bfd_set_format */
+ _bfd_generic_mkarchive, bfd_false},
+ {bfd_false, b_out_write_object_contents, /* bfd_write_contents */
+ _bfd_write_archive_contents, bfd_false},
+
+ JUMP_TABLE(aout_32),
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* COFF stuff?! */
+ b_out_reloc_type_lookup,
};
HAS_LINENO | HAS_DEBUG |
HAS_SYMS | HAS_LOCALS | DYNAMIC | WP_TEXT ),
(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
+ '_', /* symbol leading char */
' ', /* ar_pad_char */
16, /* ar_max_namelen */
2, /* minum align */
_bfd_generic_mkarchive, bfd_false},
{bfd_false, b_out_write_object_contents, /* bfd_write_contents */
_bfd_write_archive_contents, bfd_false},
- JUMP_TABLE(aout_32)
+ JUMP_TABLE(aout_32),
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* COFF stuff?! */
+ b_out_reloc_type_lookup,
};