Sync headers to ld.so for gdb/arc support

2 files changed, 61 insertions, 3 deletions

diff --git a/sys/arch/arc/include/elf_abi.h b/sys/arch/arc/include/elf_abi.h
index c2c6bee32c0..4290c15563a 100644
--- a/sys/arch/arc/include/elf_abi.h
+++ b/sys/arch/arc/include/elf_abi.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: elf_abi.h,v 1.1 1996/09/17 18:26:24 pefo Exp $ */
+/*	$OpenBSD: elf_abi.h,v 1.2 1996/12/11 05:55:34 imp Exp $ */
 
 /*
  * Copyright (c) 1996 Per Fogelstrom
@@ -55,3 +55,4 @@
 #define DT_MIPS_HIPAGENO     0x70000014 /* Number of GOT page table entries */
 #define DT_MIPS_RLD_MAP      0x70000016 /* Address of debug map pointer */
 
+#define DT_PROCNUM (DT_MIPS_HIPAGENO - DT_LOPROC + 1)
diff --git a/sys/arch/arc/include/link.h b/sys/arch/arc/include/link.h
index a6c1397134e..39e137ff191 100644
--- a/sys/arch/arc/include/link.h
+++ b/sys/arch/arc/include/link.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: link.h,v 1.1 1996/09/17 18:26:25 pefo Exp $ */
+/*	$OpenBSD: link.h,v 1.2 1996/12/11 05:55:35 imp Exp $ */
 
 /*
  * Copyright (c) 1996 Per Fogelstrom
@@ -35,7 +35,7 @@
 #ifndef _LINK_H
 #define _LINK_H 1
  
-#include <elf.h>
+#include <elf_abi.h>
 #include <machine/elf_abi.h>
 
 /*
@@ -65,4 +65,61 @@ struct r_debug {
 	Elf32_Addr r_ldbase;        /* Base address the linker is loaded at.  */
   };            
 
+/* This symbol refers to the "dynamic structure" in the `.dynamic' section
+   of whatever module refers to `_DYNAMIC'.  So, to find its own
+   `struct r_debug', a program could do:
+     for (dyn = _DYNAMIC; dyn->d_tag != DT_NULL)
+       if (dyn->d_tag == DT_MIPS_RLD_MAP) r_debug = (struct r_debug) dyn->d_un.d_ptr;
+   */
+
+extern Elf32_Dyn _DYNAMIC[];
+
+
+/* Structure describing a loaded shared object.  The `l_next' and `l_prev'
+   members form a chain of all the shared objects loaded at startup.
+
+   These data structures exist in space used by the run-time dynamic linker;
+   modifying them may have disastrous results.  */
+
+struct link_map
+  {
+    /* These first few members are part of the protocol with the debugger.
+       This is the same format used in SVR4.  */
+
+    Elf32_Addr l_addr;		/* Base address shared object is loaded at.  */
+    Elf32_Addr l_offs;		/* Offset */
+    char *l_name;		/* Absolute file name object was found in.  */
+    Elf32_Dyn *l_ld;		/* Dynamic section of the shared object.  */
+    struct link_map *l_next, *l_prev; /* Chain of loaded objects.  */
+
+    /* All following members are internal to the dynamic linker.
+       They may change without notice.  */
+
+    const char *l_libname;	/* Name requested (before search).  */
+
+    /* Indexed pointers to dynamic section.  */
+    Elf32_Dyn *l_info[DT_NUM + DT_PROCNUM];
+
+    const Elf32_Phdr *l_phdr;	/* Pointer to program header table in core.  */
+    Elf32_Word l_phnum;		/* Number of program header entries.  */
+    Elf32_Addr l_entry;		/* Entry point location.  */
+
+    /* Symbol hash table.  */
+    Elf32_Word l_nbuckets;
+    const Elf32_Word *l_buckets, *l_chain;
+
+    unsigned int l_opencount;	/* Reference count for dlopen/dlclose.  */
+    enum			/* Where this object came from.  */
+      {
+	lt_executable,		/* The main executable program.  */
+	lt_interpreter,		/* The interpreter: the dynamic linker.  */
+	lt_library,		/* Library needed by main executable.  */
+	lt_loaded,		/* Extra run-time loaded shared object.  */
+      } l_type:2;
+    unsigned int l_deps_loaded:1; /* Nonzero if DT_NEEDED items loaded.  */
+    unsigned int l_relocated:1;	/* Nonzero if object's relocations done.  */
+    unsigned int l_init_called:1; /* Nonzero if DT_INIT function called.  */
+    unsigned int l_init_running:1; /* Nonzero while DT_INIT function runs.  */
+  };
+
 #endif /* _LINK_H */