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* NEWS: Mention new feature --exclude-modules-for-implib.

Browse Source 
* ld.texinfo:  Document new --exclude-modules-for-implib option.
	* pe-dll.c (exclude_list_struct):  Change type member from int to
	new enumeration exclude_type.
	(pe_dll_add_excludes):  Accept exclude_type instead of int param.
	(auto_export):  Replace magic constants by exclude_type values and
	handle new choice EXCLUDEFORIMPLIB.
	(pe_dll_generate_implib):  Accept a pointer to the link_info and
	iterate all input BFDs looking for EXCLUDEFORIMPLIB modules; re-open
	fresh BFDs for any found and link into import lib archive chain.
	* pe-dll.h (exclude_type):  Add new enumerated type to replace magic
	constants previously used for exclude_list_struct type member.
	(pe_dll_add_excludes, pe_dll_generate_implib):  Update prototypes.
	* pep-dll.h (exclude_type, pe_dll_add_excludes,
	pe_dll_generate_implib):  Likewise to all the above.
	* emultempl/pe.em (OPTION_EXCLUDE_MODULES_FOR_IMPLIB):  Define new
	getopts long option code for new --exclude-modules-for-implib option.
	(gld${EMULATION_NAME}_add_options):  Add new entry to xtra_long[].
	(gld_${EMULATION_NAME}_list_options):  List usage for it.
	(gld${EMULATION_NAME}_handle_option):  Use exclude_type enumerated
	values when calling pe_dll_add_excludes, and handle EXCLUDEFORIMPLIB.
	(gld_${EMULATION_NAME}_finish):  Pass pointer to link_info when
	calling pe_dll_generate_implib.
	* emultempl/pep.em (options):  Define new enumerated value for getopts
	long option code for new --exclude-modules-for-implib option.
	(gld${EMULATION_NAME}_add_options, gld_${EMULATION_NAME}_list_options,
	gld${EMULATION_NAME}_handle_option, gld_${EMULATION_NAME}_finish):
	Again, likewise to all the above.
This commit is contained in:
Dave Korn 2009-01-03 18:04:16 +00:00
parent b4f8c801a1
commit e1c37eb57e
8 changed files with 147 additions and 16 deletions
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31
ld/ChangeLog
View File

@ -1,3 +1,34 @@
2009-01-03 Dave Korn <dave.korn.cygwin@gmail.com>
* NEWS: Mention new feature --exclude-modules-for-implib.
* ld.texinfo: Document new --exclude-modules-for-implib option.
* pe-dll.c (exclude_list_struct): Change type member from int to
new enumeration exclude_type.
(pe_dll_add_excludes): Accept exclude_type instead of int param.
(auto_export): Replace magic constants by exclude_type values and
handle new choice EXCLUDEFORIMPLIB.
(pe_dll_generate_implib): Accept a pointer to the link_info and
iterate all input BFDs looking for EXCLUDEFORIMPLIB modules; re-open
fresh BFDs for any found and link into import lib archive chain.
* pe-dll.h (exclude_type): Add new enumerated type to replace magic
constants previously used for exclude_list_struct type member.
(pe_dll_add_excludes, pe_dll_generate_implib): Update prototypes.
* pep-dll.h (exclude_type, pe_dll_add_excludes,
pe_dll_generate_implib): Likewise to all the above.
* emultempl/pe.em (OPTION_EXCLUDE_MODULES_FOR_IMPLIB): Define new
getopts long option code for new --exclude-modules-for-implib option.
(gld${EMULATION_NAME}_add_options): Add new entry to xtra_long[].
(gld_${EMULATION_NAME}_list_options): List usage for it.
(gld${EMULATION_NAME}_handle_option): Use exclude_type enumerated
values when calling pe_dll_add_excludes, and handle EXCLUDEFORIMPLIB.
(gld_${EMULATION_NAME}_finish): Pass pointer to link_info when
calling pe_dll_generate_implib.
* emultempl/pep.em (options): Define new enumerated value for getopts
long option code for new --exclude-modules-for-implib option.
(gld${EMULATION_NAME}_add_options, gld_${EMULATION_NAME}_list_options,
gld${EMULATION_NAME}_handle_option, gld_${EMULATION_NAME}_finish):
Again, likewise to all the above.
2009-01-03 Dave Korn <dave.korn.cygwin@gmail.com>
* pe-dll.c (autofilter_liblist): Add entry for shared libgcc.

4
ld/NEWS
View File

@ -1,4 +1,8 @@
-*- text -*-
* Windows PE systems now support a new --exclude-modules-for-implib option,
allowing users to partition object files and archive members between a DLL
and its associated import library as they are generated during linking.
* Add support for Lattice Mico32 (lm32) architecture.
* Add CR16 ELF --embedded-relocs (used to embedded relocations into binaries

15
ld/emultempl/pe.em
View File

@ -207,6 +207,8 @@ gld_${EMULATION_NAME}_before_parse (void)
(OPTION_LARGE_ADDRESS_AWARE + 1)
#define OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2 \
(OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1 + 1)
#define OPTION_EXCLUDE_MODULES_FOR_IMPLIB \
(OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2 + 1)
static void
gld${EMULATION_NAME}_add_options
@ -240,6 +242,7 @@ gld${EMULATION_NAME}_add_options
{"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
{"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
{"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
{"exclude-modules-for-implib", required_argument, NULL, OPTION_EXCLUDE_MODULES_FOR_IMPLIB},
{"kill-at", no_argument, NULL, OPTION_KILL_ATS},
{"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
{"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
@ -341,6 +344,9 @@ gld_${EMULATION_NAME}_list_options (FILE *file)
fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n"));
fprintf (file, _(" --exclude-modules-for-implib mod,mod,...\n"));
fprintf (file, _(" Exclude objects, archive members from auto\n"));
fprintf (file, _(" export, place into import library instead.\n"));
fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
fprintf (file, _(" --out-implib <file> Generate import library\n"));
@ -598,10 +604,13 @@ gld${EMULATION_NAME}_handle_option (int optc)
pe_dll_export_everything = 1;
break;
case OPTION_EXCLUDE_SYMBOLS:
pe_dll_add_excludes (optarg, 0);
pe_dll_add_excludes (optarg, EXCLUDESYMS);
break;
case OPTION_EXCLUDE_LIBS:
pe_dll_add_excludes (optarg, 1);
pe_dll_add_excludes (optarg, EXCLUDELIBS);
break;
case OPTION_EXCLUDE_MODULES_FOR_IMPLIB:
pe_dll_add_excludes (optarg, EXCLUDEFORIMPLIB);
break;
case OPTION_KILL_ATS:
pe_dll_kill_ats = 1;
@ -1584,7 +1593,7 @@ gld_${EMULATION_NAME}_finish (void)
{
pe_dll_fill_sections (link_info.output_bfd, &link_info);
if (pe_implib_filename)
pe_dll_generate_implib (pe_def_file, pe_implib_filename);
pe_dll_generate_implib (pe_def_file, pe_implib_filename, &link_info);
}
#if defined(TARGET_IS_shpe) || defined(TARGET_IS_mipspe)
/* ARM doesn't need relocs. */

16
ld/emultempl/pep.em
View File

@ -175,7 +175,8 @@ enum options
OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC,
OPTION_DLL_DISABLE_RUNTIME_PSEUDO_RELOC,
OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V1,
OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2
OPTION_DLL_ENABLE_RUNTIME_PSEUDO_RELOC_V2,
OPTION_EXCLUDE_MODULES_FOR_IMPLIB
};
static void
@ -213,6 +214,7 @@ gld${EMULATION_NAME}_add_options
{"export-all-symbols", no_argument, NULL, OPTION_EXPORT_ALL},
{"exclude-symbols", required_argument, NULL, OPTION_EXCLUDE_SYMBOLS},
{"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
{"exclude-modules-for-implib", required_argument, NULL, OPTION_EXCLUDE_MODULES_FOR_IMPLIB},
{"kill-at", no_argument, NULL, OPTION_KILL_ATS},
{"add-stdcall-alias", no_argument, NULL, OPTION_STDCALL_ALIASES},
{"enable-stdcall-fixup", no_argument, NULL, OPTION_ENABLE_STDCALL_FIXUP},
@ -307,6 +309,9 @@ gld_${EMULATION_NAME}_list_options (FILE *file)
fprintf (file, _(" --enable-stdcall-fixup Link _sym to _sym@nn without warnings\n"));
fprintf (file, _(" --exclude-symbols sym,sym,... Exclude symbols from automatic export\n"));
fprintf (file, _(" --exclude-libs lib,lib,... Exclude libraries from automatic export\n"));
fprintf (file, _(" --exclude-modules-for-implib mod,mod,...\n"));
fprintf (file, _(" Exclude objects, archive members from auto\n"));
fprintf (file, _(" export, place into import library instead.\n"));
fprintf (file, _(" --export-all-symbols Automatically export all globals to DLL\n"));
fprintf (file, _(" --kill-at Remove @nn from exported symbols\n"));
fprintf (file, _(" --out-implib <file> Generate import library\n"));
@ -559,10 +564,13 @@ gld${EMULATION_NAME}_handle_option (int optc)
pep_dll_export_everything = 1;
break;
case OPTION_EXCLUDE_SYMBOLS:
pep_dll_add_excludes (optarg, 0);
pep_dll_add_excludes (optarg, EXCLUDESYMS);
break;
case OPTION_EXCLUDE_LIBS:
pep_dll_add_excludes (optarg, 1);
pep_dll_add_excludes (optarg, EXCLUDELIBS);
break;
case OPTION_EXCLUDE_MODULES_FOR_IMPLIB:
pep_dll_add_excludes (optarg, EXCLUDEFORIMPLIB);
break;
case OPTION_KILL_ATS:
pep_dll_kill_ats = 1;
@ -1386,7 +1394,7 @@ gld_${EMULATION_NAME}_finish (void)
{
pep_dll_fill_sections (link_info.output_bfd, &link_info);
if (pep_implib_filename)
pep_dll_generate_implib (pep_def_file, pep_implib_filename);
pep_dll_generate_implib (pep_def_file, pep_implib_filename, &link_info);
}
if (pep_out_def_filename)

16
ld/ld.texinfo
View File

@ -457,7 +457,7 @@ and other ways of specifying the entry point.
@kindex --exclude-libs
@item --exclude-libs @var{lib},@var{lib},...
Specifies a list of archive libraries from which symbols should not be automatically
exported. The library names may be delimited by commas or colons. Specifying
exported. The library names may be delimited by commas or colons. Specifying
@code{--exclude-libs ALL} excludes symbols in all archive libraries from
automatic export. This option is available only for the i386 PE targeted
port of the linker and for ELF targeted ports. For i386 PE, symbols
@ -465,6 +465,19 @@ explicitly listed in a .def file are still exported, regardless of this
option. For ELF targeted ports, symbols affected by this option will
be treated as hidden.
@kindex --exclude-modules-for-implib
@item --exclude-modules-for-implib @var{module},@var{module},...
Specifies a list of object files or archive members, from which symbols
should not be automatically exported, but which should be copied wholesale
into the import library being generated during the link. The module names
may be delimited by commas or colons, and must match exactly the filenames
used by @command{ld} to open the files; for archive members, this is simply
the member name, but for object files the name listed must include and
match precisely any path used to specify the input file on the linker's
command-line. This option is available only for the i386 PE targeted port
of the linker. Symbols explicitly listed in a .def file are still exported,
regardless of this option.
@cindex dynamic symbol table
@kindex -E
@kindex --export-dynamic
@ -6232,6 +6245,7 @@ which is controlled by the following command line options:
@item --export-all-symbols [This is the default]
@item --exclude-symbols
@item --exclude-libs
@item --exclude-modules-for-implib
@end itemize
If, however, @samp{--export-all-symbols} is not given explicitly on the

69
ld/pe-dll.c
View File

@ -463,14 +463,14 @@ typedef struct exclude_list_struct
{
char *string;
struct exclude_list_struct *next;
int type;
exclude_type type;
}
exclude_list_struct;
static struct exclude_list_struct *excludes = 0;
void
pe_dll_add_excludes (const char *new_excludes, const int type)
pe_dll_add_excludes (const char *new_excludes, const exclude_type type)
{
char *local_copy;
char *exclude_string;
@ -593,13 +593,18 @@ auto_export (bfd *abfd, def_file *d, const char *n)
for (ex = excludes; ex; ex = ex->next)
{
if (ex->type == 1) /* exclude-libs */
if (ex->type == EXCLUDELIBS)
{
if (libname
&& ((strcmp (libname, ex->string) == 0)
|| (strcasecmp ("ALL", ex->string) == 0)))
return 0;
}
else if (ex->type == EXCLUDEFORIMPLIB)
{
if (strcmp (abfd->filename, ex->string) == 0)
return 0;
}
else if (strcmp (n, ex->string) == 0)
return 0;
}
@ -2480,12 +2485,13 @@ pe_create_import_fixup (arelent *rel, asection *s, bfd_vma addend)
void
pe_dll_generate_implib (def_file *def, const char *impfilename)
pe_dll_generate_implib (def_file *def, const char *impfilename, struct bfd_link_info *info)
{
int i;
bfd *ar_head;
bfd *ar_tail;
bfd *outarch;
bfd *ibfd;
bfd *head = 0;
dll_filename = (def->name) ? def->name : dll_name;
@ -2514,6 +2520,61 @@ pe_dll_generate_implib (def_file *def, const char *impfilename)
/* Work out a reasonable size of things to put onto one line. */
ar_head = make_head (outarch);
/* Iterate the input BFDs, looking for exclude-modules-for-implib. */
for (ibfd = info->input_bfds; ibfd; ibfd = ibfd->link_next)
{
/* Iterate the exclude list. */
struct exclude_list_struct *ex;
char found;
for (ex = excludes, found = 0; ex && !found; ex = ex->next)
{
if (ex->type != EXCLUDEFORIMPLIB)
continue;
found = (strcmp (ex->string, ibfd->filename) == 0);
}
/* If it matched, we must open a fresh BFD for it (the original
input BFD is still needed for the DLL's final link) and add
it into the archive member chain. */
if (found)
{
bfd *newbfd = bfd_openr (ibfd->my_archive
? ibfd->my_archive->filename : ibfd->filename, NULL);
if (!newbfd)
{
einfo (_("%Xbfd_openr %s: %E\n"), ibfd->filename);
return;
}
if (ibfd->my_archive)
{
/* Must now iterate through archive until we find the
required member. A minor shame that we'll open the
archive once per member that we require from it, and
leak those archive bfds rather than reuse them. */
bfd *arbfd = newbfd;
if (!bfd_check_format_matches (arbfd, bfd_archive, NULL))
{
einfo (_("%X%s(%s): can't find member in non-archive file"),
ibfd->my_archive->filename, ibfd->filename);
return;
}
newbfd = NULL;
while ((newbfd = bfd_openr_next_archived_file (arbfd, newbfd)) != 0)
{
if (strcmp (newbfd->filename, ibfd->filename) == 0)
break;
}
if (!newbfd)
{
einfo (_("%X%s(%s): can't find member in archive"),
ibfd->my_archive->filename, ibfd->filename);
return;
}
}
newbfd->archive_next = head;
head = newbfd;
}
}
for (i = 0; i < def->num_exports; i++)
{
/* The import library doesn't know about the internal name. */

6
ld/pe-dll.h
View File

@ -36,14 +36,16 @@ extern int pe_dll_warn_dup_exports;
extern int pe_dll_compat_implib;
extern int pe_dll_extra_pe_debug;
typedef enum { EXCLUDESYMS, EXCLUDELIBS, EXCLUDEFORIMPLIB } exclude_type;
extern void pe_dll_id_target
(const char *);
extern void pe_dll_add_excludes
(const char *, const int);
(const char *, const exclude_type);
extern void pe_dll_generate_def_file
(const char *);
extern void pe_dll_generate_implib
(def_file *, const char *);
(def_file *, const char *, struct bfd_link_info *);
extern void pe_process_import_defs
(bfd *, struct bfd_link_info *);
extern bfd_boolean pe_implied_import_dll

6
ld/pep-dll.h
View File

@ -36,10 +36,12 @@ extern int pep_dll_warn_dup_exports;
extern int pep_dll_compat_implib;
extern int pep_dll_extra_pe_debug;
typedef enum { EXCLUDESYMS, EXCLUDELIBS, EXCLUDEFORIMPLIB } exclude_type;
extern void pep_dll_id_target (const char *);
extern void pep_dll_add_excludes (const char *, const int);
extern void pep_dll_add_excludes (const char *, const exclude_type);
extern void pep_dll_generate_def_file (const char *);
extern void pep_dll_generate_implib (def_file *, const char *);
extern void pep_dll_generate_implib (def_file *, const char *, struct bfd_link_info *);
extern void pep_process_import_defs (bfd *, struct bfd_link_info *);
extern bfd_boolean pep_implied_import_dll (const char *);
extern void pep_dll_build_sections (bfd *, struct bfd_link_info *);