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* ldgram.y: map -M behave in the same way as -Map (sets file name 

to be "-".
	* ldsym.c, ldlang.c: remember that size of a section is dependent on
	whether or not relaxing has been done.
	* ldmain.c: don't open a map file if it doesn't have a name
	* relax.c: all the brains have moved into bfd.
	* ldwrite.c: ammend comment
This commit is contained in:
Steve Chamberlain 1992-01-28 18:21:36 +00:00
parent daa91756f1
commit 870f54b2c8
5 changed files with 65 additions and 189 deletions
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10
ld/ChangeLog
View File

@ -1,3 +1,13 @@
Tue Jan 28 10:18:16 1992 Steve Chamberlain (sac at rtl.cygnus.com)
* ldgram.y: map -M behave in the same way as -Map (sets file name
to be "-".
* ldsym.c, ldlang.c: remember that size of a section is dependent on
whether or not relaxing has been done.
* ldmain.c: don't open a map file if it doesn't have a name
* relax.c: all the brains have moved into bfd.
* ldwrite.c: ammend comment
Fri Jan 24 14:23:46 1992 Steve Chamberlain (sac at rtl.cygnus.com)
* Makefile.in: added relax, also made three stage go through a

5
ld/ldgram.y
View File

@ -193,10 +193,7 @@ command_line_option:
}
| OPTION_M {
if (write_map) {
option_longmap = true;
}
write_map = true;
config.map_filename = "-";
}
| OPTION_n {

9
ld/ldmain.c
View File

@ -190,8 +190,14 @@ main (argc, argv)
}
ldemul_after_parse();
if (config.map_filename)
{
if (strcmp(config.map_filename[0],"-") == 0)
{
config.map_file = stdout;
}
else {
config.map_file = fopen(config.map_filename, FOPEN_WT);
if (config.map_file == (FILE *)NULL)
{
@ -199,7 +205,8 @@ main (argc, argv)
config.map_filename);
}
}
else config.map_file = stdout;
}
lang_process();

2
ld/ldsym.c
View File

@ -227,7 +227,7 @@ DEFUN(print_file_stuff,(f),
s != (asection *)NULL;
s = s->next) {
print_address(s->output_offset);
if (s->flags & SEC_HAS_CONTENTS)
if (s->reloc_done)
{
fprintf (config.map_file, " %08x 2**%2ud %s\n",
(unsigned)bfd_get_section_size_after_reloc(s),

140
ld/relax.c
View File

@ -141,99 +141,6 @@ DEFUN(write_relaxnorel,(output_bfd),
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 -=2;
}
}
s++;
}
}
static int
DEFUN(movb1,(input_section, symbols, r, shrink),
asection *input_section AND
asymbol **symbols AND
arelent *r AND
unsigned int shrink)
{
bfd_vma value = get_value(r, input_section);
if (value >= 0xff00)
{
/* Change the reloc type from 16bit, possible 8 to 8bit
possible 16 */
r->howto = r->howto + 1;
/* The place to relc moves back by one */
r->address -=1;
/* This will be two bytes smaller in the long run */
shrink +=2 ;
perform_slip(symbols, 2, input_section, r->address - shrink +1);
}
return shrink;
}
static int
DEFUN(jmp1,(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 127 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 (-120 < (long)gap && (long)gap < 120 )
{
/* Change the reloc type from 16bit, possible 8 to 8bit
possible 16 */
r->howto = r->howto + 1;
/* The place to relc moves back by one */
r->address -=1;
/* This will be two bytes smaller in the long run */
shrink +=2 ;
perform_slip(symbols, 2, input_section, r->address-shrink +1);
}
return shrink;
}
/* See if we can change the size of this section by shrinking the
@ -248,52 +155,7 @@ DEFUN(relax_section,(this_ptr),
lang_input_section_type *is = &((*this_ptr)->input_section);
asection *i = is->section;
/* Get enough memory to hold the stuff */
bfd *input_bfd = i->owner;
asection *input_section = i;
int shrink = 0 ;
int new = 0;
bfd_size_type reloc_size = bfd_get_reloc_upper_bound(input_bfd,
input_section);
arelent **reloc_vector = (arelent **)ldmalloc(reloc_size);
/* Get the relocs and think about them */
if (bfd_canonicalize_reloc(input_bfd,
input_section,
reloc_vector,
is->ifile->asymbols) )
{
arelent **parent;
asymbol **symbols = is->ifile->asymbols;
for (parent = reloc_vector; *parent; parent++)
{
arelent *r = *parent;
switch (r->howto->type) {
case R_MOVB2:
case R_JMP2:
shrink+=2;
break;
case R_MOVB1:
shrink = movb1(input_section, symbols, r, shrink);
new = 1;
break;
case R_JMP1:
shrink = jmp1(input_section, symbols, r, shrink);
new = 1;
break;
}
}
}
input_section->_cooked_size -= shrink;
free((char *)reloc_vector);
return new;
return bfd_relax_section(i->owner, i, is->ifile->asymbols);
}