Add support for ELF shared libraries.

	* ld.h (ld_config_type): Add field dynamic_link.
	* ldmain.c (main): Initialize config.dynamic_link to false.  Warn
	on attempts to use -r with -relax, -call_shared or -s.
	* lexsup.c (longopts): Separate OPTION_CALL_SHARED from
	OPTION_NON_SHARED.  Add OPTION_IGNORE.  Adjust macro values
	accordingly.  Add "dy" and "non_shared" options.  Change "Qy" to
	OPTION_IGNORE for now.  Handle OPTION_CALL_SHARED and
	OPTION_NON_SHARED by setting dynamic_link field accordingly.
	Handle OPTION_IGNORE by ignoring it.  Clear dynamic_link field for
	-r and -Ur.
	* ldfile.c (ldfile_open_file): If config.dynamic_link is true, try
	opening a file with a .so extension first.
	* emultempl/elf32.em: New file.
	* emulparams/elf32_sparc.sh (TEXT_START_ADDR): Change to 0x10000.
	(NONPAGED_TEXT_START_ADDR): Likewise.
	(TEMPLATE_NAME): Define as elf32.
	(DATA_PLT): Define.
	* emulparams/elf_i386.sh (TEMPLATE_NAME): Define as elf32.
	* scripttempl/elf.sc: Add placement for new dynamic sections.
	Don't use CREATE_OBJECT_SYMBOLS.  Define _etext, _edata and _end
	outside of any section.  Don't use ALIGN(8); just let one section
	VMA follow another.  Put .dynbss in .bss.  Don't mention debugging
	sections; they'll be handled correctly anyhow.
	* Makefile.in (eelf_i386.c): Depend upon elf32.em, not generic.em.

1 files changed, 28 insertions, 57 deletions

diff --git a/ld/ld.h b/ld/ld.h
index 5aa8036..2ab94f6 100644
--- a/ld/ld.h
+++ b/ld/ld.h
@@ -18,66 +18,41 @@
    along with GLD; see the file COPYING.  If not, write to
    the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 
+#ifndef LD_H
+#define LD_H
 
-#define flag_is_not_at_end(x) ((x) & BSF_NOT_AT_END)
-#define flag_is_ordinary_local(x) (((x) & (BSF_LOCAL))&!((x) & (BSF_DEBUGGING)))
-#define flag_is_debugger(x) ((x) & BSF_DEBUGGING)
-#define flag_is_undefined_or_global(x) ((x) & (BSF_UNDEFINED | BSF_GLOBAL))
-#define flag_is_defined(x) (!((x) & (BSF_UNDEFINED)))
-#define flag_is_global_or_common(x) ((x) & (BSF_GLOBAL | BSF_FORT_COMM))
-#define flag_is_undefined_or_global_or_common(x) ((x) & (BSF_UNDEFINED | BSF_GLOBAL | BSF_FORT_COMM))
-#define flag_is_undefined_or_global_or_common_or_constructor(x) ((x) & (BSF_UNDEFINED | BSF_GLOBAL | BSF_FORT_COMM | BSF_CONSTRUCTOR))
-#define flag_is_constructor(x) ((x) & BSF_CONSTRUCTOR)
-#define flag_is_common(x) ((x) & BSF_FORT_COMM)
-#define flag_is_global(x) ((x) & (BSF_GLOBAL))
-#define flag_is_weak(x) ((x) & BSF_WEAK)
-#define flag_is_undefined(x) ((x) & BSF_UNDEFINED)
-#define flag_set(x,y) (x = y)
-#define flag_is_fort_comm(x) ((x) & BSF_FORT_COMM)
-#define flag_is_absolute(x) ((x) & BSF_ABSOLUTE)
 /* Extra information we hold on sections */
-typedef struct  user_section_struct {
+typedef struct  user_section_struct
+{
   /* Pointer to the section where this data will go */
   struct lang_input_statement_struct *file;
 } section_userdata_type;
 
 
 #define get_userdata(x) ((x)->userdata)
-#define as_output_section_statement(x) ((x)->otheruserdata)
-
-
-
-/* Which symbols should be stripped (omitted from the output):
-   none, all, or debugger symbols.  */
-typedef  enum { STRIP_NONE, STRIP_ALL, STRIP_DEBUGGER, STRIP_SOME } strip_symbols_type;
-
-
-
-
-/* Which local symbols should be omitted:
-   none, all, or those starting with L.
-   This is irrelevant if STRIP_NONE.  */
-typedef  enum { DISCARD_NONE, DISCARD_ALL, DISCARD_L } discard_locals_type;
-
 
 #define BYTE_SIZE	(1)
 #define SHORT_SIZE	(2)
 #define LONG_SIZE	(4)
+#define QUAD_SIZE	(8)
 
 /* ALIGN macro changed to ALIGN_N to avoid	*/
 /* conflict in /usr/include/machine/machparam.h */
-/* WARNING: If THIS is a 64 bit address and BOUNDARY is an unsigned int,
+/* WARNING: If THIS is a 64 bit address and BOUNDARY is a 32 bit int,
    you must coerce boundary to the same type as THIS.
    ??? Is there a portable way to avoid this.  */
-#define ALIGN_N(this, boundary)  ((( (this) + ((boundary) -1)) & (~((boundary)-1))))
+#define ALIGN_N(this, boundary) \
+  ((( (this) + ((boundary) -1)) & (~((boundary)-1))))
 
-typedef struct {
+typedef struct
+{
   /* 1 => assign space to common symbols even if `relocatable_output'.  */
   boolean force_common_definition;
   boolean relax;
-  
 } args_type;
 
+extern args_type command_line;
+
 typedef int token_code_type;
 
 typedef struct 
@@ -85,41 +60,37 @@ typedef struct
   bfd_size_type specified_data_size;
   boolean magic_demand_paged;
   boolean make_executable;
-  /* 1 => write relocation into output file so can re-input it later.  */
-  boolean relocateable_output;
 
-  /* Will we build contstructors, or leave alone ? */
+  /* If true, doing a dynamic link.  */
+  boolean dynamic_link;
+
   boolean build_constructors;
 
   /* If true, warn about merging common symbols with others.  */
   boolean warn_common;
 
   boolean sort_common;
-/* these flags may seem mutually exclusive, but not setting them
-   allows the back end to decide what would be the best thing to do */
+
   boolean text_read_only;
 
-   char *map_filename;
-   FILE *map_file;
+  char *map_filename;
+  FILE *map_file;
 
+  boolean stats;
 } ld_config_type;
-#define set_asymbol_chain(x,y) ((x)->udata = (PTR)y)
-#define get_asymbol_chain(x) ((asymbol **)((x)->udata))
-#define get_loader_symbol(x) ((loader_global_asymbol *)((x)->udata))
-#define set_loader_symbol(x,y) ((x)->udata = (PTR)y)
-
-
 
+extern ld_config_type config;
 
-
-
-typedef enum {
+typedef enum
+{
   lang_first_phase_enum,
   lang_allocating_phase_enum,
-  lang_final_phase_enum } lang_phase_type;
-
-
+  lang_final_phase_enum
+} lang_phase_type;
 
+extern boolean had_script;
+extern boolean force_make_executable;
 
+extern int yyparse PARAMS ((void));
 
-int yyparse();
+#endif