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(struct stab_link_includes_totals): Rename field 'total' to 'sum_chars'

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and add field 'num_chars'.
(_bfd_link_section_stabs): When computing the sum of the characters in a
B_INCL..B_EINCL range also keep a count of the number of characters.  Use
this information to help distinguish between include sections when have
the same sum but which nevertheless are still unique.
This commit is contained in:
Nick Clifton 2004-03-31 09:27:40 +00:00
parent 3d45646427
commit a56b48eb0f
2 changed files with 26 additions and 8 deletions
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10
bfd/ChangeLog
View File

@ -1,3 +1,13 @@
2004-03-31 Andy Chittenden <achittenden@bluearc.com>
* stabs.c (struct stab_link_includes_totals): Rename field 'total'
to 'sum_chars' and add field 'num_chars'.
(_bfd_link_section_stabs): When computing the sum of the
characters in a B_INCL..B_EINCL range also keep a count of the
number of characters. Use this information to help distinguish
between include sections when have the same sum but which
nevertheless are still unique.
2004-03-31 Mattias Engdegård <mattias@virtutech.se>
* stabs.c (_bfd_link_section_stabs): Do not skip N_EXCL stabs.

24
bfd/stabs.c
View File

@ -56,12 +56,17 @@ struct stab_link_includes_table
};
/* A linked list of totals that we have found for a particular header
file. */
file. A total is the sum of all the STABS characters for a particular
file and the number of these charactes. It is used to identify
duplicate files which can be excluded. XXX: A better method would be to
compute an MD5 checksum, but that is coding left for another day.
The bfd_vma type is used because it is a very large unsigned type. */
struct stab_link_includes_totals
{
struct stab_link_includes_totals *next;
bfd_vma total;
bfd_vma sum_chars; /* Accumulated sum of STABS characters. */
bfd_vma num_chars; /* Number of STABS characters. */
};
/* An entry in the header file hash table. */
@ -340,14 +345,15 @@ _bfd_link_section_stabs (abfd, psinfo, stabsec, stabstrsec, psecinfo, pstring_of
first number after an open parenthesis). */
if (type == (int) N_BINCL)
{
bfd_vma val;
bfd_vma sum_chars;
bfd_vma num_chars;
int nest;
bfd_byte *incl_sym;
struct stab_link_includes_entry *incl_entry;
struct stab_link_includes_totals *t;
struct stab_excl_list *ne;
val = 0;
sum_chars = num_chars = 0;
nest = 0;
for (incl_sym = sym + STABSIZE;
incl_sym < symend;
@ -377,7 +383,8 @@ _bfd_link_section_stabs (abfd, psinfo, stabsec, stabstrsec, psecinfo, pstring_of
+ bfd_get_32 (abfd, incl_sym + STRDXOFF));
for (; *str != '\0'; str++)
{
val += *str;
sum_chars += *str;
num_chars ++;
if (*str == '(')
{
/* Skip the file number. */
@ -398,7 +405,7 @@ _bfd_link_section_stabs (abfd, psinfo, stabsec, stabstrsec, psecinfo, pstring_of
goto error_return;
for (t = incl_entry->totals; t != NULL; t = t->next)
if (t->total == val)
if (t->sum_chars == sum_chars && t->num_chars == num_chars)
break;
/* Record this symbol, so that we can set the value
@ -408,7 +415,7 @@ _bfd_link_section_stabs (abfd, psinfo, stabsec, stabstrsec, psecinfo, pstring_of
if (ne == NULL)
goto error_return;
ne->offset = sym - stabbuf;
ne->val = val;
ne->val = sum_chars;
ne->type = (int) N_BINCL;
ne->next = secinfo->excls;
secinfo->excls = ne;
@ -421,7 +428,8 @@ _bfd_link_section_stabs (abfd, psinfo, stabsec, stabstrsec, psecinfo, pstring_of
bfd_hash_allocate (&sinfo->includes.root, sizeof *t));
if (t == NULL)
goto error_return;
t->total = val;
t->sum_chars = sum_chars;
t->num_chars = num_chars;
t->next = incl_entry->totals;
incl_entry->totals = t;
}