rtld: Add #if defined (__FDPIC__)

Like for other FDPIC targets, add defined(__FDPIC__) where needed.

	* include/link.h: Include bits/elf-fdpic.h if __FDPIC__ is defined.
	(link_map): Use elf32_fdpic_loadaddr if __FDPIC__ is defined.
	(dl_phdr_info): Likewise.
	* ldso/include/dl-elf.h (__dl_parse_dynamic_info): Support
	__FDPIC__.
	* ldso/include/dl-hash.h (elf_resolve): Add funcdesc_ht field if
	__FDPIC__ is defined.
	* ldso/ldso/dl-hash.c (_dl_find_hash): Support __FDPIC__.
	* libc/misc/elf/dl-iterate-phdr.c (dl_iterate_phdr): Support __FDPIC__.

Signed-off-by: Mickaël Guêné <mickael.guene@st.com>
Signed-off-by: Christophe Lyon <christophe.lyon@st.com>

include/link.h

@@ -79,7 +79,7 @@ extern struct r_debug _r_debug;
    */
 extern ElfW(Dyn) _DYNAMIC[];
 
-#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__)
+#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) || defined(__FDPIC__)
 # include <bits/elf-fdpic.h>
 #endif
 #ifdef __DSBT__
@@ -97,7 +97,7 @@ struct link_map
     /* These first few members are part of the protocol with the debugger.
        This is the same format used in SVR4.  */
 
-#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__)
+#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) || defined(__FDPIC__)
     struct elf32_fdpic_loadaddr l_addr;
 #else
 #ifdef __DSBT__
@@ -184,7 +184,7 @@ enum
 
 struct dl_phdr_info
   {
-#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__)
+#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) || defined(__FDPIC__)
     struct elf32_fdpic_loadaddr dlpi_addr;
 #else
 #ifdef __DSBT__

ldso/include/dl-elf.h

@@ -202,7 +202,7 @@ unsigned int __dl_parse_dynamic_info(ElfW(Dyn) *dpnt, unsigned long dynamic_info
 	/* Don't adjust .dynamic unnecessarily.  For FDPIC targets,
 	   we'd have to walk all the loadsegs to find out if it was
 	   actually unnecessary, so skip this optimization.  */
-#if !defined __FRV_FDPIC__ && !defined __BFIN_FDPIC__ && !defined __DSBT__
+#if !defined __FRV_FDPIC__ && !defined __BFIN_FDPIC__ && !defined __DSBT__ && !defined __FDPIC__
 	if (load_off != 0)
 #endif
 	{

ldso/include/dl-hash.h

@@ -134,7 +134,7 @@ struct elf_resolve {
   unsigned long data_words;
 #endif
 
-#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__)
+#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) || defined(__FDPIC__)
   /* Every loaded module holds a hashtable of function descriptors of
      functions defined in it, such that it's easy to release the
      memory when the module is dlclose()d.  */

ldso/ldso/dl-hash.c

@@ -377,7 +377,7 @@ char *_dl_find_hash(const char *name, struct r_scope_elem *scope, struct elf_res
 				break;
 #endif
 			case STB_GLOBAL:
-#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__)
+#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) || defined(__FDPIC__)
 			if (sym_ref)
 				sym_ref->tpnt = tpnt;
 #endif
@@ -386,7 +386,7 @@ char *_dl_find_hash(const char *name, struct r_scope_elem *scope, struct elf_res
 				break;
 		}
 	}
-#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__)
+#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) || defined(__FDPIC__)
 	if (sym_ref)
 		sym_ref->tpnt = tpnt;
 #endif

libc/misc/elf/dl-iterate-phdr.c

@@ -58,7 +58,7 @@ dl_iterate_phdr (int (*callback) (struct dl_phdr_info *info,
       /* This entry describes this statically-linked program itself.  */
       struct dl_phdr_info info;
       int ret;
-#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__)
+#if defined(__FRV_FDPIC__) || defined(__BFIN_FDPIC__) || defined(__FDPIC__)
       info.dlpi_addr.map = NULL;
       info.dlpi_addr.got_value = NULL;
 #elif defined(__DSBT__)