FreeChainXenon/binutils-gdb
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Let the user change the dynamic linker used by ELF code.

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* ld.h (args_type): Add new field interpreter.
	* lexsup.c (parse_args): Add dynamic-linker to longopts, and
	handle it.
	* ldmain.c (main): Initialize command_line.interpreter to NULL.
	* emultempl/elf32.em (gld${EMULATION_NAME}_before_allocation): Get
	the ELF backend to return the .interp section.  If
	command_line.interpreter is not NULL, set the contents of .interp
	to it.
	* ld.texinfo: Mention -dynamic-linker.
This commit is contained in:
Ian Lance Taylor 1994-06-15 20:46:43 +00:00
parent 57569ce8d1
commit 7fb9ca5fc2
4 changed files with 33 additions and 2 deletions
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14
ld/ChangeLog
View file

@ -1,5 +1,19 @@
Wed Jun 15 01:54:54 1994 Ian Lance Taylor (ian@tweedledumb.cygnus.com)
Let the user change the dynamic linker used by ELF code.
* ld.h (args_type): Add new field interpreter.
* lexsup.c (parse_args): Add dynamic-linker to longopts, and
handle it.
* ldmain.c (main): Initialize command_line.interpreter to NULL.
* emultempl/elf32.em (gld${EMULATION_NAME}_before_allocation): Get
the ELF backend to return the .interp section. If
command_line.interpreter is not NULL, set the contents of .interp
to it.
* ld.texinfo: Mention -dynamic-linker.
* config/sun4sol2.mt (eelf32_sparc.c): Depend upon elf32.em, not
generic.em.
* lexsup.c (parse_args): Sort out the option macros and change the
definitions to make it easier to add a new option.

13
ld/emultempl/elf32.em
View file

@ -59,6 +59,8 @@ gld${EMULATION_NAME}_before_parse()
static void
gld${EMULATION_NAME}_before_allocation ()
{
asection *sinterp;
/* If we are going to make any variable assignments, we need to let
the ELF backend know about them in case the variables are
referred to by dynamic objects. */
@ -66,8 +68,17 @@ gld${EMULATION_NAME}_before_allocation ()
/* Let the ELF backend work out the sizes of any sections required
by dynamic linking. */
if (! bfd_elf32_size_dynamic_sections (output_bfd, &link_info))
if (! bfd_elf32_size_dynamic_sections (output_bfd, &link_info,
&sinterp))
einfo ("%P%F: failed to set dynamic section sizes: %E\n");
/* Let the user override the dynamic linker we are using. */
if (command_line.interpreter != NULL
&& sinterp != NULL)
{
sinterp->contents = (bfd_byte *) command_line.interpreter;
sinterp->_raw_size = strlen (command_line.interpreter) + 1;
}
}
/* This is called by the before_allocation routine via

1
ld/ldmain.c
View file

@ -162,6 +162,7 @@ main (argc, argv)
config.build_constructors = true;
config.dynamic_link = false;
command_line.force_common_definition = false;
command_line.interpreter = NULL;
link_info.callbacks = &link_callbacks;
link_info.relocateable = false;

7
ld/lexsup.c
View file

@ -57,7 +57,8 @@ parse_args (argc, argv)
#define OPTION_CALL_SHARED 150
#define OPTION_DEFSYM (OPTION_CALL_SHARED + 1)
#define OPTION_EB (OPTION_DEFSYM + 1)
#define OPTION_DYNAMIC_LINKER (OPTION_DEFSYM + 1)
#define OPTION_EB (OPTION_DYNAMIC_LINKER + 1)
#define OPTION_EL (OPTION_EB + 1)
#define OPTION_HELP (OPTION_EL + 1)
#define OPTION_IGNORE (OPTION_HELP + 1)
@ -85,6 +86,7 @@ parse_args (argc, argv)
{"dn", no_argument, NULL, OPTION_NON_SHARED},
{"dp", no_argument, NULL, 'd'},
{"dy", no_argument, NULL, OPTION_CALL_SHARED},
{"dynamic-linker", required_argument, NULL, OPTION_DYNAMIC_LINKER},
{"EB", no_argument, NULL, OPTION_EB},
{"EL", no_argument, NULL, OPTION_EL},
{"format", required_argument, NULL, 'b'},
@ -160,6 +162,9 @@ parse_args (argc, argv)
parser_input = input_defsym;
yyparse ();
break;
case OPTION_DYNAMIC_LINKER:
command_line.interpreter = optarg;
break;
case OPTION_EB:
/* FIXME: This is currently ignored. It means
``produce a big-endian object file''. It could