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authorDanny Smith <dannysmith@users.sourceforge.net>2006-01-31 22:08:14 +0000
committerDanny Smith <dannysmith@users.sourceforge.net>2006-01-31 22:08:14 +0000
commita8d701fd09ed1ce8afaf1a5892f3b37c078a6864 (patch)
treed12c757aed1e6d70b8ec87a05a71ea2a1f8471a5 /ld/pe-dll.c
parente7da6241844b3fd313859e6128bf5bddd3e22502 (diff)
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2006-01-31 Filip Navara <navaraf@reactos.com>
* deffile.h (struct def_file_export): Add field flag_forward. * pe-dll.c (process_def_file): Check for forward exports. (generate_edata): Generate forward export symbols. (fill_edata): Emit them. * pe-dll.c (process_def_file): Don't crash on malformed fastcall symbol names in .def file.
Diffstat (limited to 'ld/pe-dll.c')
-rw-r--r--ld/pe-dll.c79
1 files changed, 63 insertions, 16 deletions
diff --git a/ld/pe-dll.c b/ld/pe-dll.c
index a11f9e1..d4d42e4 100644
--- a/ld/pe-dll.c
+++ b/ld/pe-dll.c
@@ -596,8 +596,13 @@ process_def_file (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
have. */
int lead_at = (*pe_def_file->exports[i].name == '@');
char *tmp = xstrdup (pe_def_file->exports[i].name + lead_at);
+ char *tmp_at = strchr (tmp, '@');
- *(strchr (tmp, '@')) = 0;
+ if (tmp_at)
+ *tmp_at = 0;
+ else
+ einfo (_("%XCannot export %s: invalid export name\n"),
+ pe_def_file->exports[i].name);
pe_def_file->exports[i].name = tmp;
}
}
@@ -680,6 +685,27 @@ process_def_file (bfd *abfd ATTRIBUTE_UNUSED, struct bfd_link_info *info)
{
char *name;
+ /* Check for forward exports */
+ if (strchr (pe_def_file->exports[i].internal_name, '.'))
+ {
+ count_exported++;
+ if (!pe_def_file->exports[i].flag_noname)
+ count_exported_byname++;
+
+ pe_def_file->exports[i].flag_forward = 1;
+
+ if (pe_def_file->exports[i].ordinal != -1)
+ {
+ if (max_ordinal < pe_def_file->exports[i].ordinal)
+ max_ordinal = pe_def_file->exports[i].ordinal;
+ if (min_ordinal > pe_def_file->exports[i].ordinal)
+ min_ordinal = pe_def_file->exports[i].ordinal;
+ count_with_ordinals++;
+ }
+
+ continue;
+ }
+
name = xmalloc (strlen (pe_def_file->exports[i].internal_name) + 2);
if (pe_details->underscored
&& (*pe_def_file->exports[i].internal_name != '@'))
@@ -837,7 +863,8 @@ generate_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED)
/* Now we need to assign ordinals to those that don't have them. */
for (i = 0; i < NE; i++)
{
- if (exported_symbol_sections[i])
+ if (exported_symbol_sections[i] ||
+ pe_def_file->exports[i].flag_forward)
{
if (pe_def_file->exports[i].ordinal != -1)
{
@@ -856,19 +883,26 @@ generate_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED)
}
name_table_size += strlen (pe_def_file->exports[i].name) + 1;
}
+
+ /* Reserve space for the forward name. */
+ if (pe_def_file->exports[i].flag_forward)
+ {
+ name_table_size += strlen (pe_def_file->exports[i].internal_name) + 1;
+ }
}
next_ordinal = min_ordinal;
for (i = 0; i < NE; i++)
- if (exported_symbol_sections[i])
- if (pe_def_file->exports[i].ordinal == -1)
- {
- while (exported_symbols[next_ordinal - min_ordinal] != -1)
- next_ordinal++;
+ if ((exported_symbol_sections[i] ||
+ pe_def_file->exports[i].flag_forward) &&
+ pe_def_file->exports[i].ordinal == -1)
+ {
+ while (exported_symbols[next_ordinal - min_ordinal] != -1)
+ next_ordinal++;
- exported_symbols[next_ordinal - min_ordinal] = i;
- pe_def_file->exports[i].ordinal = next_ordinal;
- }
+ exported_symbols[next_ordinal - min_ordinal] = i;
+ pe_def_file->exports[i].ordinal = next_ordinal;
+ }
/* OK, now we can allocate some memory. */
edata_sz = (40 /* directory */
@@ -967,15 +1001,28 @@ fill_edata (bfd *abfd, struct bfd_link_info *info ATTRIBUTE_UNUSED)
for (s = 0; s < NE; s++)
{
struct bfd_section *ssec = exported_symbol_sections[s];
- if (ssec && pe_def_file->exports[s].ordinal != -1)
+ if (pe_def_file->exports[s].ordinal != -1 &&
+ (pe_def_file->exports[s].flag_forward || ssec != NULL))
{
- unsigned long srva = (exported_symbol_offsets[s]
- + ssec->output_section->vma
- + ssec->output_offset);
int ord = pe_def_file->exports[s].ordinal;
- bfd_put_32 (abfd, srva - image_base,
- eaddresses + 4 * (ord - min_ordinal));
+ if (pe_def_file->exports[s].flag_forward)
+ {
+ bfd_put_32 (abfd, ERVA (enamestr),
+ eaddresses + 4 * (ord - min_ordinal));
+
+ strcpy (enamestr, pe_def_file->exports[s].internal_name);
+ enamestr += strlen (pe_def_file->exports[s].internal_name) + 1;
+ }
+ else
+ {
+ unsigned long srva = (exported_symbol_offsets[s]
+ + ssec->output_section->vma
+ + ssec->output_offset);
+
+ bfd_put_32 (abfd, srva - image_base,
+ eaddresses + 4 * (ord - min_ordinal));
+ }
if (!pe_def_file->exports[s].flag_noname)
{