patch from Bernd Schmidt to abstract away load address types

4 files changed, 17 insertions, 6 deletions

diff --git a/ldso/include/dl-defs.h b/ldso/include/dl-defs.h
index 18f718bef..5cf260183 100644
--- a/ldso/include/dl-defs.h
+++ b/ldso/include/dl-defs.h
@@ -66,6 +66,15 @@ typedef struct {
 
 #endif
 
+/* Machines in which different sections may be relocated by different
+ * amounts should define this and LD_RELOC_ADDR.  If you change this,
+ * make sure you change struct link_map in include/link.h accordingly
+ * such that it matches a prefix of struct elf_resolve.
+ */
+#ifndef DL_LOADADDR_TYPE
+# define DL_LOADADDR_TYPE ElfW(Addr)
+#endif
+
 /* Initialize a LOADADDR representing the loader itself.  It's only
  * called from DL_BOOT, so additional arguments passed to it may be
  * referenced.
diff --git a/ldso/include/dl-elf.h b/ldso/include/dl-elf.h
index de404aec1..7b609d592 100644
--- a/ldso/include/dl-elf.h
+++ b/ldso/include/dl-elf.h
@@ -94,10 +94,12 @@ extern void _dl_protect_relro (struct elf_resolve *l);
 
 #define DYNAMIC_SIZE (DT_NUM+OS_NUM+ARCH_NUM)
 
-extern void _dl_parse_dynamic_info(ElfW(Dyn) *dpnt, unsigned long dynamic_info[], void *debug_addr, ElfW(Addr) load_off);
+extern void _dl_parse_dynamic_info(ElfW(Dyn) *dpnt, unsigned long dynamic_info[],
+                                   void *debug_addr, DL_LOADADDR_TYPE load_off);
 
 static __always_inline
-void __dl_parse_dynamic_info(ElfW(Dyn) *dpnt, unsigned long dynamic_info[], void *debug_addr, ElfW(Addr) load_off)
+void __dl_parse_dynamic_info(ElfW(Dyn) *dpnt, unsigned long dynamic_info[],
+                             void *debug_addr, DL_LOADADDR_TYPE load_off)
 {
 	for (; dpnt->d_tag; dpnt++) {
 		if (dpnt->d_tag < DT_NUM) {
diff --git a/ldso/include/dl-hash.h b/ldso/include/dl-hash.h
index ad5c16318..8f30688d1 100644
--- a/ldso/include/dl-hash.h
+++ b/ldso/include/dl-hash.h
@@ -28,7 +28,7 @@ struct dyn_elf {
 struct elf_resolve {
   /* These entries must be in this order to be compatible with the interface used
      by gdb to obtain the list of symbols. */
-  ElfW(Addr) loadaddr;		/* Base address shared object is loaded at.  */
+  DL_LOADADDR_TYPE loadaddr;		/* Base address shared object is loaded at.  */
   char *libname;		/* Absolute file name object was found in.  */
   ElfW(Dyn) *dynamic_addr;	/* Dynamic section of the shared object.  */
   struct elf_resolve * next;
@@ -77,7 +77,7 @@ extern struct elf_resolve * _dl_loaded_modules;
 extern struct dyn_elf 	  * _dl_handles;
 
 extern struct elf_resolve * _dl_add_elf_hash_table(const char * libname,
-	ElfW(Addr) loadaddr, unsigned long * dynamic_info,
+	DL_LOADADDR_TYPE loadaddr, unsigned long * dynamic_info,
 	unsigned long dynamic_addr, unsigned long dynamic_size);
 
 extern char * _dl_find_hash(const char * name, struct dyn_elf * rpnt1,
diff --git a/ldso/include/ldso.h b/ldso/include/ldso.h
index 6b1e9cb4e..47b2fb513 100644
--- a/ldso/include/ldso.h
+++ b/ldso/include/ldso.h
@@ -88,7 +88,7 @@ extern void _dl_unsetenv(const char *symbol, char **envp);
 extern char *_dl_strdup(const char *string);
 extern void _dl_dprintf(int, const char *, ...);
 
-extern void _dl_get_ready_to_run(struct elf_resolve *tpnt, ElfW(Addr) load_addr,
-		ElfW(auxv_t) auxvt[AT_EGID + 1], char **envp, char **argv);
+extern void _dl_get_ready_to_run(struct elf_resolve *tpnt, DL_LOADADDR_TYPE load_addr,
+                                 ElfW(auxv_t) auxvt[AT_EGID + 1], char **envp, char **argv);
 
 #endif /* _LDSO_H_ */