/* BFD back-end for HP PA-RISC ELF files.
- Copyright (C) 1990-1991 Free Software Foundation, Inc.
+ Copyright (C) 1990, 91, 92, 93, 94, 95, 96, 1997
+ Free Software Foundation, Inc.
Written by
-
+
Center for Software Science
Department of Computer Science
University of Utah
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
-#include "obstack.h"
-#include "libelf.h"
+#include "elf-bfd.h"
+#include "elf/hppa.h"
+#include "libhppa.h"
+#include "elf32-hppa.h"
+#define ARCH_SIZE 32
+#include "elf-hppa.h"
+
+
+/* We use three different hash tables to hold information for
+ linking PA ELF objects.
+
+ The first is the elf32_hppa_link_hash_table which is derived
+ from the standard ELF linker hash table. We use this as a place to
+ attach other hash tables and static information.
+
+ The second is the stub hash table which is derived from the
+ base BFD hash table. The stub hash table holds the information
+ necessary to build the linker stubs during a link. */
+
+/* Hash table for linker stubs. */
+
+struct elf32_hppa_stub_hash_entry
+{
+ /* Base hash table entry structure, we can get the name of the stub
+ (and thus know exactly what actions it performs) from the base
+ hash table entry. */
+ struct bfd_hash_entry root;
+
+ /* Offset of the beginning of this stub. */
+ bfd_vma offset;
+
+ /* Given the symbol's value and its section we can determine its final
+ value when building the stubs (so the stub knows where to jump. */
+ symvalue target_value;
+ asection *target_section;
+};
+struct elf32_hppa_stub_hash_table
+{
+ /* The hash table itself. */
+ struct bfd_hash_table root;
+
+ /* The stub BFD. */
+ bfd *stub_bfd;
+
+ /* Where to place the next stub. */
+ bfd_byte *location;
+
+ /* Current offset in the stub section. */
+ unsigned int offset;
+
+};
-static struct elf_backend_data elf_hppa_backend_data = {
- NULL /* initially, $global$ is undefined */
+struct elf32_hppa_link_hash_entry
+{
+ struct elf_link_hash_entry root;
+};
+
+struct elf32_hppa_link_hash_table
+{
+ /* The main hash table. */
+ struct elf_link_hash_table root;
+
+ /* The stub hash table. */
+ struct elf32_hppa_stub_hash_table *stub_hash_table;
+
+ /* A count of the number of output symbols. */
+ unsigned int output_symbol_count;
+
+ /* Stuff so we can handle DP relative relocations. */
+ long global_value;
+ int global_sym_defined;
};
/* ELF32/HPPA relocation support
This file contains ELF32/HPPA relocation support as specified
in the Stratus FTX/Golf Object File Format (SED-1762) dated
- November 19, 1992.
-*/
-
-/*
- Written by:
-
- Center for Software Science
- Department of Computer Science
- University of Utah
-*/
+ February 1994. */
#include "elf32-hppa.h"
+#include "hppa_stubs.h"
-/* ELF/PA stab entries */
-
-#ifdef hp800
-#undef hp800
-#include <a.out.h> /* we want the non-hp800 definition of 'struct nlist' */
-#define hp800
-#else
-#include <a.out.h>
-#endif
-
-/* ELF/PA relocation howto entries */
-
-static bfd_reloc_status_type hppa_elf_reloc();
-
-reloc_howto_type elf_hppa_howto_table[ELF_HOWTO_TABLE_SIZE] = {
- /* 'bitpos' and 'abs' are obsolete */
- /* type rs sz bsz pcrel bpos abs ovrf sf name */
- /* 9.3.4. Address relocation types */
- { R_HPPA_NONE, 0, 3, 19, false, 0, false, true, hppa_elf_reloc, "R_HPPA_NONE"},
- { R_HPPA_32, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_32" },
- { R_HPPA_11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_11" },
- { R_HPPA_14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_14" },
- { R_HPPA_17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_17" },
- { R_HPPA_L21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_L21" },
- { R_HPPA_R11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_R11" },
- { R_HPPA_R14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_R14" },
- { R_HPPA_R17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_R17" },
- { R_HPPA_LS21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_LS21" },
- { R_HPPA_RS11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_RS11" },
- { R_HPPA_RS14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_RS14" },
- { R_HPPA_RS17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_RS17" },
- { R_HPPA_LD21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_LD21" },
- { R_HPPA_RD11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_RD11" },
- { R_HPPA_RD14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_RD14" },
- { R_HPPA_RD17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_RD17" },
- { R_HPPA_LR21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_LR21" },
- { R_HPPA_RR14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_RR14" },
- { R_HPPA_RR17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_RR17" },
- /* 9.3.5. GOTOFF address relocation types */
- { R_HPPA_GOTOFF_11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_11" },
- { R_HPPA_GOTOFF_14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_14" },
- { R_HPPA_GOTOFF_L21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_L21" },
- { R_HPPA_GOTOFF_R11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_R11" },
- { R_HPPA_GOTOFF_R14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_R14" },
- { R_HPPA_GOTOFF_LS21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_LS21" },
- { R_HPPA_GOTOFF_RS11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_RS11" },
- { R_HPPA_GOTOFF_RS14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_RS14" },
- { R_HPPA_GOTOFF_LD21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_LD21" },
- { R_HPPA_GOTOFF_RD11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_RD11" },
- { R_HPPA_GOTOFF_RD14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_RD14" },
- { R_HPPA_GOTOFF_LR21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_LR21" },
- { R_HPPA_GOTOFF_RR14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_GOTOFF_RR14" },
- /* 9.3.6. Absolute call relocation types */
- { R_HPPA_ABS_CALL_11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_11" },
- { R_HPPA_ABS_CALL_14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_14" },
- { R_HPPA_ABS_CALL_17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_17" },
- { R_HPPA_ABS_CALL_L21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_L21" },
- { R_HPPA_ABS_CALL_R11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_R11" },
- { R_HPPA_ABS_CALL_R14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_R14" },
- { R_HPPA_ABS_CALL_R17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_R17" },
- { R_HPPA_ABS_CALL_LS21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_LS21" },
- { R_HPPA_ABS_CALL_RS11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_RS11" },
- { R_HPPA_ABS_CALL_RS14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_RS14" },
- { R_HPPA_ABS_CALL_RS17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_RS17" },
- { R_HPPA_ABS_CALL_LD21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_LD21" },
- { R_HPPA_ABS_CALL_RD11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_RD11" },
- { R_HPPA_ABS_CALL_RD14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_RD14" },
- { R_HPPA_ABS_CALL_RD17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_RD17" },
- { R_HPPA_ABS_CALL_LR21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_LR21" },
- { R_HPPA_ABS_CALL_RR14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_RR14" },
- { R_HPPA_ABS_CALL_RR17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ABS_CALL_RR17" },
- /* 9.3.7. PC-relative call relocation types */
- { R_HPPA_PCREL_CALL_11, 0, 3, 11, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_11" },
- { R_HPPA_PCREL_CALL_14, 0, 3, 14, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_14" },
- { R_HPPA_PCREL_CALL_17, 0, 3, 17, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_17" },
- { R_HPPA_PCREL_CALL_L21,0, 3, 21, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_L21" },
- { R_HPPA_PCREL_CALL_R11,0, 3, 11, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_R11" },
- { R_HPPA_PCREL_CALL_R14,0, 3, 14, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_R14" },
- { R_HPPA_PCREL_CALL_R17,0, 3, 17, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_R17" },
- { R_HPPA_PCREL_CALL_LS21,0,3, 21, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_LS21" },
- { R_HPPA_PCREL_CALL_RS11,0,3, 11, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RS11" },
- { R_HPPA_PCREL_CALL_RS14,0,3, 14, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RS14" },
- { R_HPPA_PCREL_CALL_RS17,0,3, 17, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RS17" },
- { R_HPPA_PCREL_CALL_LD21,0,3, 21, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_LD21" },
- { R_HPPA_PCREL_CALL_RD11,0,3, 11, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RD11" },
- { R_HPPA_PCREL_CALL_RD14,0,3, 14, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RD14" },
- { R_HPPA_PCREL_CALL_RD17,0,3, 17, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RD17" },
- { R_HPPA_PCREL_CALL_LR21,0,3, 21, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_LR21" },
- { R_HPPA_PCREL_CALL_RR14,0,3, 14, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RR14" },
- { R_HPPA_PCREL_CALL_RR17,0,3, 17, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RR17" }, /* #69 */
-
- /* 9.3.8. Plabel relocation types */
- { R_HPPA_PLABEL_32, 0, 3, 32, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PLABEL_32" },
- { R_HPPA_PLABEL_11, 0, 3, 11, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PLABEL_11" },
- { R_HPPA_PLABEL_14, 0, 3, 14, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PLABEL_14" },
- { R_HPPA_PLABEL_L21, 0, 3, 21, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PLABEL_L21" },
- { R_HPPA_PLABEL_R11, 0, 3, 11, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PLABEL_R11" },
- { R_HPPA_PLABEL_R14, 0, 3, 14, true, 0, false, true, hppa_elf_reloc, "R_HPPA_PLABEL_R14" }, /* 75 */
-
- /* 9.3.9. Data linkage table (DLT) relocation types */
- { R_HPPA_DLT_32, 0, 3, 32, true, 0, false, true, hppa_elf_reloc, "R_HPPA_DLT_32" },
- { R_HPPA_DLT_11, 0, 3, 11, true, 0, false, true, hppa_elf_reloc, "R_HPPA_DLT_11" },
- { R_HPPA_DLT_14, 0, 3, 14, true, 0, false, true, hppa_elf_reloc, "R_HPPA_DLT_14" },
- { R_HPPA_DLT_L21, 0, 3, 21, true, 0, false, true, hppa_elf_reloc, "R_HPPA_DLT_L21" },
- { R_HPPA_DLT_R11, 0, 3, 11, true, 0, false, true, hppa_elf_reloc, "R_HPPA_DLT_R11" },
- { R_HPPA_DLT_R14, 0, 3, 14, true, 0, false, true, hppa_elf_reloc, "R_HPPA_DLT_R14" }, /* 81 */
-
- /* 9.3.10. Relocations for unwinder tables */
- { R_HPPA_UNWIND_ENTRY, 0, 3, 32, true, 0, false, true, hppa_elf_reloc, "R_HPPA_UNWIND_ENTRY"},
- { R_HPPA_UNWIND_ENTRIES,0, 3, 32, true, 0, false, true, hppa_elf_reloc, "R_HPPA_UNWIND_ENTRIES"}, /* 83 */
-
- { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, /* 84-89 */
- { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, /* 90-99 */
- { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, /* 100-109 */
- { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, /* 110-119 */
- { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, { 0 }, /* 120-127 */
-
- /* 9.3.11. Relocation types for complex expressions */
- { R_HPPA_PUSH_CONST, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_PUSH_CONST" },
- { R_HPPA_PUSH_SYM, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_PUSH_SYM" },
- { R_HPPA_PUSH_GOT, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_PUSH_GOT" },
- { R_HPPA_PUSH_PC, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_PUSH_PC" },
- { R_HPPA_PUSH_PROC, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_PUSH_PROC" },
- { R_HPPA_PUSH_PLABEL, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_PUSH_PLABEL" },
- { R_HPPA_MAX, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_MAX" },
- { R_HPPA_MIN, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_MIN" },
- { R_HPPA_ADD, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ADD" },
- { R_HPPA_SUB, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_SUB" },
- { R_HPPA_MULT, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_MULT" },
- { R_HPPA_DIV, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_DIV" },
- { R_HPPA_MOD, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_MOD" },
- { R_HPPA_AND, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_AND" },
- { R_HPPA_OR, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_OR" },
- { R_HPPA_XOR, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_XOR" },
- { R_HPPA_NOT, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_NOT" },
- { R_HPPA_LSHIFT, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_LSHIFT" },
- { R_HPPA_ARITH_RSHIFT, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_ARITH_RSHIFT" },
- { R_HPPA_LOGIC_RSHIFT, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_LOGIC_RSHIFT" },
- { R_HPPA_EXPR_F, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_L" },
- { R_HPPA_EXPR_L, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_L" },
- { R_HPPA_EXPR_R, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_R" },
- { R_HPPA_EXPR_LS, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_LS" },
- { R_HPPA_EXPR_RS, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_RS" },
- { R_HPPA_EXPR_LD, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_LD" },
- { R_HPPA_EXPR_RD, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_RD" },
- { R_HPPA_EXPR_LR, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_LR" },
- { R_HPPA_EXPR_RR, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_RR" },
-
- { R_HPPA_EXPR_32, 0, 3, 32, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_32" },
- { R_HPPA_EXPR_21, 0, 3, 21, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_21" },
- { R_HPPA_EXPR_11, 0, 3, 11, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_11" },
- { R_HPPA_EXPR_14, 0, 3, 14, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_14" },
- { R_HPPA_EXPR_17, 0, 3, 17, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_17" },
- { R_HPPA_EXPR_12, 0, 3, 12, false, 0, false, true, hppa_elf_reloc, "R_HPPA_EXPR_12" },
- { R_HPPA_UNIMPLEMENTED, 0, 0, 0, false, 0, false, false,NULL, "R_HPPA_UNIMPLEMENTED"}, /* 163 */
-};
+static bfd_reloc_status_type hppa_elf_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
-static unsigned long
-DEFUN(hppa_elf_rebuild_insn, (abfd,insn,value,r_type,r_field, r_format),
- bfd *abfd AND
- unsigned long insn AND
- unsigned long value AND
- unsigned short r_type AND
- unsigned short r_field AND
- unsigned short r_format)
-{
- unsigned long const_part; /* part of the instruction that does not change */
- unsigned long rebuilt_part;
+static unsigned long hppa_elf_relocate_insn
+ PARAMS ((bfd *, asection *, unsigned long, unsigned long, long,
+ long, unsigned long, unsigned long, unsigned long));
- switch ( r_format ) {
- case 11: {
- unsigned w1, w;
+static bfd_reloc_status_type hppa_elf_reloc
+ PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd*, char **));
- const_part = insn & 0xffffe002;
- dis_assemble_12(value,&w1,&w);
- rebuilt_part = (w1 << 2) | w;
- return const_part | rebuilt_part;
- }
+static boolean hppa_elf_is_local_label_name PARAMS ((bfd *, const char *));
- case 12: {
- unsigned w1, w;
+static boolean elf32_hppa_add_symbol_hook
+ PARAMS ((bfd *, struct bfd_link_info *, const Elf_Internal_Sym *,
+ const char **, flagword *, asection **, bfd_vma *));
- const_part = insn & 0xffffe002;
- dis_assemble_12(value,&w1,&w);
- rebuilt_part = (w1 << 2) | w;
- return const_part | rebuilt_part;
- }
+static bfd_reloc_status_type elf32_hppa_bfd_final_link_relocate
+ PARAMS ((reloc_howto_type *, bfd *, bfd *, asection *,
+ bfd_byte *, bfd_vma, bfd_vma, bfd_vma, struct bfd_link_info *,
+ asection *, const char *, int));
- case 14:
- const_part = insn & 0xffffc000;
- low_sign_unext(value,14,&rebuilt_part);
- return const_part | rebuilt_part;
+static struct bfd_link_hash_table *elf32_hppa_link_hash_table_create
+ PARAMS ((bfd *));
- case 17: {
- unsigned w1, w2, w;
+static struct bfd_hash_entry *
+elf32_hppa_stub_hash_newfunc
+ PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
- const_part = insn & 0xffe0e002;
- dis_assemble_17(value,&w1,&w2,&w);
- rebuilt_part = (w2 << 2) | (w1 << 16) | w;
- return const_part | rebuilt_part;
- }
+static boolean
+elf32_hppa_relocate_section
+ PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *,
+ bfd_byte *, Elf_Internal_Rela *, Elf_Internal_Sym *, asection **));
- case 21:
- const_part = insn & 0xffe00000;
- dis_assemble_21(value,&rebuilt_part);
- return const_part | rebuilt_part;
-
- case 32:
- const_part = 0;
- return value;
-
- default:
- fprintf(stderr,"Relocation problem : ");
- fprintf(stderr,"Unrecognized reloc type %d (fmt=%d,fld=%d), in module %s\n",
- r_type, r_format, r_field, abfd->filename);
- }
- return insn;
-}
+static boolean
+elf32_hppa_stub_hash_table_init
+ PARAMS ((struct elf32_hppa_stub_hash_table *, bfd *,
+ struct bfd_hash_entry *(*) PARAMS ((struct bfd_hash_entry *,
+ struct bfd_hash_table *,
+ const char *))));
-static unsigned long
-DEFUN(hppa_elf_relocate_insn,
- (abfd, input_sect,
- insn, address, symp, sym_value, r_addend,
- r_type, r_format, r_field, pcrel),
- bfd *abfd AND
- asection *input_sect AND
- unsigned long insn AND
- unsigned long address AND
- asymbol *symp AND
- long sym_value AND
- long r_addend AND
- unsigned short r_type AND
- unsigned short r_format AND
- unsigned short r_field AND
- unsigned char pcrel)
-{
- unsigned char opcode = get_opcode(insn);
- long constant_value;
- unsigned arg_reloc;
-
- switch ( opcode ) {
- case LDO:
- case LDB:
- case LDH:
- case LDW:
- case LDWM:
- case STB:
- case STH:
- case STW:
- case STWM:
- constant_value = ELF32_HPPA_R_CONSTANT(r_addend);
- BFD_ASSERT(r_format == 14);
-
- if ( pcrel )
- sym_value -= address;
- sym_value = hppa_field_adjust(sym_value,constant_value,r_field);
- return hppa_elf_rebuild_insn(abfd,insn,sym_value,r_type,r_format, r_format);
-
- case COMICLR:
- case SUBI: /* case SUBIO: */
- case ADDIT: /* case ADDITO: */
- case ADDI: /* case ADDIO: */
- BFD_ASSERT(r_format == 11);
-
- constant_value = ((insn & 0x1) << 10) | ((insn & 0xffe) >> 1);
- sym_value = hppa_field_adjust(sym_value,constant_value,r_field);
- return hppa_elf_rebuild_insn(abfd,insn,sym_value,r_type,r_field, r_format);
-
- case LDIL:
- case ADDIL:
- BFD_ASSERT(r_format == 21);
-
- constant_value = assemble_21(insn);
- sym_value = hppa_field_adjust(sym_value,constant_value,r_field);
- return hppa_elf_rebuild_insn(abfd,insn,sym_value,r_type,r_field, r_format);
-
- case BL:
- case BE:
- case BLE:
- arg_reloc = ELF32_HPPA_R_ARG_RELOC(r_addend);
-
- BFD_ASSERT(r_format == 17);
-
- /* XXX computing constant_value is not needed??? */
- constant_value = assemble_17((insn & 0x001f0000) >> 16,
- (insn & 0x00001ffc) >> 2,
- insn & 1);
- constant_value = sign_ext(constant_value,17);
- if ( pcrel ) {
- sym_value -=
- address + input_sect->output_offset
- + input_sect->output_section->vma;
- sym_value = hppa_field_adjust(sym_value,-8,r_field);
- }
- else
- sym_value = hppa_field_adjust(sym_value, constant_value, r_field);
+static boolean
+elf32_hppa_build_one_stub PARAMS ((struct bfd_hash_entry *, PTR));
- return hppa_elf_rebuild_insn(abfd,insn,sym_value >> 2,r_type,r_field, r_format);
+static unsigned int elf32_hppa_size_of_stub
+ PARAMS ((bfd_vma, bfd_vma, const char *));
- default:
- if ( opcode == 0 && r_format == 32 ) {
- constant_value = insn;
- sym_value = hppa_field_adjust(sym_value,constant_value,r_field);
- return sym_value;
- }
- else {
- fprintf(stderr,
- "Unrecognized opcode 0x%02x (fmt=%x,field=%x)\n",
- opcode, r_format, r_field);
- return (insn);
- }
- }
-}
+static void elf32_hppa_name_of_stub
+ PARAMS ((bfd_vma, bfd_vma, char *));
-static void
-DEFUN(hppa_elf_relocate_unwind_table,
- (abfd, input_sect,
- data, address, symp, sym_value, r_addend,
- r_type, r_format, r_field, pcrel),
- bfd *abfd AND
- asection *input_sect AND
- PTR data AND
- unsigned long address AND
- asymbol *symp AND
- long sym_value AND
- long r_addend AND
- unsigned short r_type AND
- unsigned short r_format AND
- unsigned short r_field AND
- unsigned char pcrel)
+/* For linker stub hash tables. */
+#define elf32_hppa_stub_hash_lookup(table, string, create, copy) \
+ ((struct elf32_hppa_stub_hash_entry *) \
+ bfd_hash_lookup (&(table)->root, (string), (create), (copy)))
+
+#define elf32_hppa_stub_hash_traverse(table, func, info) \
+ (bfd_hash_traverse \
+ (&(table)->root, \
+ (boolean (*) PARAMS ((struct bfd_hash_entry *, PTR))) (func), \
+ (info)))
+
+/* For HPPA linker hash table. */
+
+#define elf32_hppa_link_hash_lookup(table, string, create, copy, follow)\
+ ((struct elf32_hppa_link_hash_entry *) \
+ elf_link_hash_lookup (&(table)->root, (string), (create), \
+ (copy), (follow)))
+
+#define elf32_hppa_link_hash_traverse(table, func, info) \
+ (elf_link_hash_traverse \
+ (&(table)->root, \
+ (boolean (*) PARAMS ((struct elf_link_hash_entry *, PTR))) (func), \
+ (info)))
+
+/* Get the PA ELF linker hash table from a link_info structure. */
+
+#define elf32_hppa_hash_table(p) \
+ ((struct elf32_hppa_link_hash_table *) ((p)->hash))
+
+
+/* Assorted hash table functions. */
+
+/* Initialize an entry in the stub hash table. */
+
+static struct bfd_hash_entry *
+elf32_hppa_stub_hash_newfunc (entry, table, string)
+ struct bfd_hash_entry *entry;
+ struct bfd_hash_table *table;
+ const char *string;
{
- bfd_byte *hit_data = address + (bfd_byte *)(data);
- long constant_value;
- long start_offset;
- long end_offset;
- long relocated_value;
- int i;
-
- BFD_ASSERT( r_format == 32 );
- BFD_ASSERT( r_field == e_fsel );
- switch ( r_type ) {
- case R_HPPA_UNWIND_ENTRY:
- start_offset = bfd_get_32(abfd, hit_data);
- relocated_value = hppa_field_adjust(sym_value,start_offset,r_field);
- bfd_put_32(abfd, relocated_value ,hit_data);
-
- hit_data += sizeof(unsigned long);
- end_offset = bfd_get_32(abfd, hit_data);
- relocated_value = hppa_field_adjust(sym_value,end_offset,r_field);
- bfd_put_32(abfd, relocated_value ,hit_data);
- break;
+ struct elf32_hppa_stub_hash_entry *ret;
+
+ ret = (struct elf32_hppa_stub_hash_entry *) entry;
+
+ /* Allocate the structure if it has not already been allocated by a
+ subclass. */
+ if (ret == NULL)
+ ret = ((struct elf32_hppa_stub_hash_entry *)
+ bfd_hash_allocate (table,
+ sizeof (struct elf32_hppa_stub_hash_entry)));
+ if (ret == NULL)
+ return NULL;
+
+ /* Call the allocation method of the superclass. */
+ ret = ((struct elf32_hppa_stub_hash_entry *)
+ bfd_hash_newfunc ((struct bfd_hash_entry *) ret, table, string));
+
+ if (ret)
+ {
+ /* Initialize the local fields. */
+ ret->offset = 0;
+ ret->target_value = 0;
+ ret->target_section = NULL;
+ }
+
+ return (struct bfd_hash_entry *) ret;
+}
- case R_HPPA_UNWIND_ENTRIES:
- for ( i = 0; i < r_addend; i++,hit_data += 3*sizeof(unsigned long) ) {
- unsigned int fsize;
- start_offset = bfd_get_32(abfd, hit_data);
- /* Stuff the symbol value into the first word */
- /* of the unwind descriptor */
- bfd_put_32(abfd, sym_value ,hit_data);
-
- hit_data += sizeof(unsigned long);
- end_offset = bfd_get_32(abfd, hit_data);
- /* We could also compute the ending offset for */
- /* the 2nd word of the unwind entry by */
- /* retrieving the st_size field of the Elf_Sym */
- /* structure stored with this symbol. We can */
- /* get it with: */
- /* e = (elf_symbol_type *)symp */
- /* fsize = e->internal_elf_sym.st_size */
-
- fsize = end_offset - start_offset;
- relocated_value = hppa_field_adjust(sym_value,fsize,r_field);
- bfd_put_32(abfd, relocated_value ,hit_data);
-
- /* If this is not the last unwind entry, */
- /* adjust the symbol value. */
- if ( i+1 < r_addend ) {
- start_offset = bfd_get_32(abfd, hit_data+3*sizeof(unsigned long));
- sym_value += fsize + start_offset - end_offset;
- }
- }
- break;
+/* Initialize a stub hash table. */
- default:
- fprintf(stderr,
- "Unrecognized relocation type 0x%02x (fmt=%x,field=%x)\n",
- r_type, r_format, r_field);
- }
- return;
+static boolean
+elf32_hppa_stub_hash_table_init (table, stub_bfd, newfunc)
+ struct elf32_hppa_stub_hash_table *table;
+ bfd *stub_bfd;
+ struct bfd_hash_entry *(*newfunc) PARAMS ((struct bfd_hash_entry *,
+ struct bfd_hash_table *,
+ const char *));
+{
+ table->offset = 0;
+ table->location = 0;
+ table->stub_bfd = stub_bfd;
+ return (bfd_hash_table_init (&table->root, newfunc));
}
-/* Provided the symbol, returns the value reffed */
-static long
-get_symbol_value(symbol)
-asymbol *symbol;
-{
- long relocation = 0;
-
- if ( symbol == (asymbol *)NULL )
- relocation = 0;
- else if (symbol->section == &bfd_com_section) {
- relocation = 0;
- }
- else {
- relocation = symbol->value +
- symbol->section->output_section->vma +
- symbol->section->output_offset;
- }
+/* Create the derived linker hash table. The PA ELF port uses the derived
+ hash table to keep information specific to the PA ELF linker (without
+ using static variables). */
- return(relocation);
+static struct bfd_link_hash_table *
+elf32_hppa_link_hash_table_create (abfd)
+ bfd *abfd;
+{
+ struct elf32_hppa_link_hash_table *ret;
+
+ ret = ((struct elf32_hppa_link_hash_table *)
+ bfd_alloc (abfd, sizeof (struct elf32_hppa_link_hash_table)));
+ if (ret == NULL)
+ return NULL;
+ if (!_bfd_elf_link_hash_table_init (&ret->root, abfd,
+ _bfd_elf_link_hash_newfunc))
+ {
+ bfd_release (abfd, ret);
+ return NULL;
+ }
+ ret->stub_hash_table = NULL;
+ ret->output_symbol_count = 0;
+ ret->global_value = 0;
+ ret->global_sym_defined = 0;
+
+ return &ret->root.root;
}
-/* This function provides a pretty straight-forward mapping between a */
-/* base relocation type, format and field into the relocation type */
-/* that will be emitted in an object file. The only wrinkle in the */
-/* mapping is that when the T, TR, TL, P, PR, or PL expression */
-/* prefixes are involved, the type gets promoted to a *_GOTOFF_* */
-/* relocation (in the case of T, TR, and TL) or a PLABEL relocation */
-/* (in the case of P, PR, and PL). */
+/* Relocate the given INSN given the various input parameters.
-/* NOTE: XXX the T, TR, TL, P, PR, and PL expression prefixes are not */
-/* handled yet. */
+ FIXME: endianness and sizeof (long) issues abound here. */
-static void
- hppa_elf_gen_reloc_error(base_type,fmt,field)
-elf32_hppa_reloc_type base_type;
-int fmt;
-int field;
+static unsigned long
+hppa_elf_relocate_insn (abfd, input_sect, insn, address, sym_value,
+ r_addend, r_format, r_field, pcrel)
+ bfd *abfd;
+ asection *input_sect;
+ unsigned long insn;
+ unsigned long address;
+ long sym_value;
+ long r_addend;
+ unsigned long r_format;
+ unsigned long r_field;
+ unsigned long pcrel;
{
- fprintf(stderr, "undefined relocation: base=0x%x,fmt=0x%x,field=0x%x\n",
- base_type, fmt, field);
+ unsigned char opcode = get_opcode (insn);
+ long constant_value;
+
+ switch (opcode)
+ {
+ case LDO:
+ case LDB:
+ case LDH:
+ case LDW:
+ case LDWM:
+ case STB:
+ case STH:
+ case STW:
+ case STWM:
+ case COMICLR:
+ case SUBI:
+ case ADDIT:
+ case ADDI:
+ case LDIL:
+ case ADDIL:
+ constant_value = HPPA_R_CONSTANT (r_addend);
+
+ if (pcrel)
+ sym_value -= address;
+
+ sym_value = hppa_field_adjust (sym_value, constant_value, r_field);
+ return hppa_rebuild_insn (abfd, insn, sym_value, r_format);
+
+ case BL:
+ case BE:
+ case BLE:
+ /* XXX computing constant_value is not needed??? */
+ constant_value = assemble_17 ((insn & 0x001f0000) >> 16,
+ (insn & 0x00001ffc) >> 2,
+ insn & 1);
+
+ constant_value = (constant_value << 15) >> 15;
+ if (pcrel)
+ {
+ sym_value -=
+ address + input_sect->output_offset
+ + input_sect->output_section->vma;
+ sym_value = hppa_field_adjust (sym_value, -8, r_field);
+ }
+ else
+ sym_value = hppa_field_adjust (sym_value, constant_value, r_field);
+
+ return hppa_rebuild_insn (abfd, insn, sym_value >> 2, r_format);
+
+ default:
+ if (opcode == 0)
+ {
+ constant_value = HPPA_R_CONSTANT (r_addend);
+
+ if (pcrel)
+ sym_value -= address;
+
+ return hppa_field_adjust (sym_value, constant_value, r_field);
+ }
+ else
+ abort ();
+ }
}
-unsigned char
-hppa_elf_gen_reloc_type(base_type, format, field)
-elf32_hppa_reloc_type base_type;
-int format;
-int field;
+/* Relocate an HPPA ELF section. */
+
+static boolean
+elf32_hppa_relocate_section (output_bfd, info, input_bfd, input_section,
+ contents, relocs, local_syms, local_sections)
+ bfd *output_bfd;
+ struct bfd_link_info *info;
+ bfd *input_bfd;
+ asection *input_section;
+ bfd_byte *contents;
+ Elf_Internal_Rela *relocs;
+ Elf_Internal_Sym *local_syms;
+ asection **local_sections;
{
-#define UNDEFINED hppa_elf_gen_reloc_error(base_type,format,field);
-
- elf32_hppa_reloc_type final_type = base_type;
- switch ( base_type ) {
- case R_HPPA:
- switch (format) {
- case 11:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_R11;
- break;
- case e_rssel:
- final_type = R_HPPA_RS11;
- break;
- case e_rdsel:
- final_type = R_HPPA_RD11;
- break;
-
- case e_psel:
- final_type = R_HPPA_PLABEL_11;
- break;
- case e_rpsel:
- final_type = R_HPPA_PLABEL_R11;
- break;
- case e_lpsel:
- case e_tsel:
- case e_ltsel:
- case e_rtsel:
-
- case e_fsel:
- case e_lsel:
- case e_lrsel:
- case e_lssel:
- case e_rrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 12:
- UNDEFINED;
- break;
- case 14:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_R14;
- break;
- case e_rssel:
- final_type = R_HPPA_RS14;
- break;
- case e_rdsel:
- final_type = R_HPPA_RD14;
- break;
- case e_rrsel:
- final_type = R_HPPA_RR14;
- break;
-
- case e_psel:
- final_type = R_HPPA_PLABEL_14;
- break;
- case e_rpsel:
- final_type = R_HPPA_PLABEL_R14;
- break;
- case e_lpsel:
- case e_tsel:
- case e_ltsel:
- case e_rtsel:
-
- case e_fsel:
- case e_lsel:
- case e_lssel:
- case e_ldsel:
- case e_lrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 17:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_R17;
- break;
- case e_rssel:
- final_type = R_HPPA_RS17;
- break;
- case e_rdsel:
- final_type = R_HPPA_RD17;
- break;
- case e_rrsel:
- final_type = R_HPPA_RR17;
- break;
- case e_fsel:
- case e_lsel:
- case e_lssel:
- case e_ldsel:
- case e_lrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 21:
- switch ( field ) {
- case e_lsel:
- final_type = R_HPPA_L21;
- break;
- case e_lssel:
- final_type = R_HPPA_LS21;
- break;
- case e_ldsel:
- final_type = R_HPPA_LD21;
- break;
- case e_lrsel:
- final_type = R_HPPA_LR21;
- break;
- case e_lpsel:
- final_type = R_HPPA_PLABEL_L21;
- break;
- case e_rsel:
- case e_rssel:
- case e_rdsel:
- case e_rrsel:
- case e_fsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 32:
- switch ( field ) {
- case e_fsel:
- final_type = R_HPPA_32;
- break;
- case e_psel:
- final_type = R_HPPA_PLABEL_32;
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case R_HPPA_GOTOFF:
- switch (format) {
- case 11:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_GOTOFF_R11;
- break;
- case e_rssel:
- final_type = R_HPPA_GOTOFF_RS11;
- break;
- case e_rdsel:
- final_type = R_HPPA_GOTOFF_RD11;
- break;
- case e_fsel:
- final_type = R_HPPA_GOTOFF_11;
- break;
- case e_lsel:
- case e_lrsel:
- case e_lssel:
- case e_rrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 12:
- UNDEFINED;
- final_type = base_type;
- break;
- case 14:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_GOTOFF_R14;
- break;
- case e_rssel:
- final_type = R_HPPA_GOTOFF_RS14;
- break;
- case e_rdsel:
- final_type = R_HPPA_GOTOFF_RD14;
- break;
- case e_rrsel:
- final_type = R_HPPA_GOTOFF_RR14;
- break;
- case e_fsel:
- final_type = R_HPPA_GOTOFF_14;
- break;
- case e_lsel:
- case e_lssel:
- case e_ldsel:
- case e_lrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 17:
- UNDEFINED;
- final_type = base_type;
- break;
- case 21:
- switch ( field ) {
- case e_lsel:
- final_type = R_HPPA_GOTOFF_L21;
- break;
- case e_lssel:
- final_type = R_HPPA_GOTOFF_LS21;
- break;
- case e_ldsel:
- final_type = R_HPPA_GOTOFF_LD21;
- break;
- case e_lrsel:
- final_type = R_HPPA_GOTOFF_LR21;
- break;
- case e_rsel:
- case e_rssel:
- case e_rdsel:
- case e_rrsel:
- case e_fsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 32:
- UNDEFINED;
- final_type = base_type;
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case R_HPPA_PCREL_CALL:
- switch (format) {
- case 11:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_PCREL_CALL_R11;
- break;
- case e_rssel:
- final_type = R_HPPA_PCREL_CALL_RS11;
- break;
- case e_rdsel:
- final_type = R_HPPA_PCREL_CALL_RD11;
- break;
- case e_fsel:
- final_type = R_HPPA_PCREL_CALL_11;
- break;
- case e_lsel:
- case e_lrsel:
- case e_lssel:
- case e_rrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 12:
- UNDEFINED;
- final_type = base_type;
- break;
- case 14:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_PCREL_CALL_R14;
- break;
- case e_rssel:
- final_type = R_HPPA_PCREL_CALL_RS14;
- break;
- case e_rdsel:
- final_type = R_HPPA_PCREL_CALL_RD14;
- break;
- case e_rrsel:
- final_type = R_HPPA_PCREL_CALL_RR14;
- break;
- case e_fsel:
- final_type = R_HPPA_PCREL_CALL_14;
- break;
- case e_lsel:
- case e_lssel:
- case e_ldsel:
- case e_lrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 17:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_PCREL_CALL_R17;
- break;
- case e_rssel:
- final_type = R_HPPA_PCREL_CALL_RS17;
- break;
- case e_rdsel:
- final_type = R_HPPA_PCREL_CALL_RD17;
- break;
- case e_rrsel:
- final_type = R_HPPA_PCREL_CALL_RR17;
- break;
- case e_fsel:
- final_type = R_HPPA_PCREL_CALL_17;
- break;
- case e_lsel:
- case e_lssel:
- case e_ldsel:
- case e_lrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 21:
- switch ( field ) {
- case e_lsel:
- final_type = R_HPPA_PCREL_CALL_L21;
- break;
- case e_lssel:
- final_type = R_HPPA_PCREL_CALL_LS21;
- break;
- case e_ldsel:
- final_type = R_HPPA_PCREL_CALL_LD21;
- break;
- case e_lrsel:
- final_type = R_HPPA_PCREL_CALL_LR21;
- break;
- case e_rsel:
- case e_rssel:
- case e_rdsel:
- case e_rrsel:
- case e_fsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 32:
- UNDEFINED;
- final_type = base_type;
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case R_HPPA_PLABEL:
- switch (format) {
- case 11:
- switch (field) {
- case e_fsel:
- final_type = R_HPPA_PLABEL_11;
- break;
- case e_rsel:
- final_type = R_HPPA_PLABEL_R11;
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 14:
- switch (field) {
- case e_fsel:
- final_type = R_HPPA_PLABEL_14;
- break;
- case e_rsel:
- final_type = R_HPPA_PLABEL_R14;
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 21:
- switch (field) {
- case e_lsel:
- final_type = R_HPPA_PLABEL_L21;
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 32:
- switch (field) {
- case e_fsel:
- final_type = R_HPPA_PLABEL_32;
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- case R_HPPA_ABS_CALL:
- switch (format) {
- case 11:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_ABS_CALL_R11;
- break;
- case e_rssel:
- final_type = R_HPPA_ABS_CALL_RS11;
- break;
- case e_rdsel:
- final_type = R_HPPA_ABS_CALL_RD11;
- break;
- case e_fsel:
- final_type = R_HPPA_ABS_CALL_11;
- break;
- case e_lsel:
- case e_lrsel:
- case e_lssel:
- case e_rrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 12:
- UNDEFINED;
- final_type = base_type;
- break;
- case 14:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_ABS_CALL_R14;
- break;
- case e_rssel:
- final_type = R_HPPA_ABS_CALL_RS14;
- break;
- case e_rdsel:
- final_type = R_HPPA_ABS_CALL_RD14;
- break;
- case e_rrsel:
- final_type = R_HPPA_ABS_CALL_RR14;
- break;
- case e_fsel:
- final_type = R_HPPA_ABS_CALL_14;
- break;
- case e_lsel:
- case e_lssel:
- case e_ldsel:
- case e_lrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 17:
- switch ( field ) {
- case e_rsel:
- final_type = R_HPPA_ABS_CALL_R17;
- break;
- case e_rssel:
- final_type = R_HPPA_ABS_CALL_RS17;
- break;
- case e_rdsel:
- final_type = R_HPPA_ABS_CALL_RD17;
- break;
- case e_rrsel:
- final_type = R_HPPA_ABS_CALL_RR17;
- break;
- case e_fsel:
- final_type = R_HPPA_ABS_CALL_17;
- break;
- case e_lsel:
- case e_lssel:
- case e_ldsel:
- case e_lrsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 21:
- switch ( field ) {
- case e_lsel:
- final_type = R_HPPA_ABS_CALL_L21;
- break;
- case e_lssel:
- final_type = R_HPPA_ABS_CALL_LS21;
- break;
- case e_ldsel:
- final_type = R_HPPA_ABS_CALL_LD21;
- break;
- case e_lrsel:
- final_type = R_HPPA_ABS_CALL_LR21;
- break;
- case e_rsel:
- case e_rssel:
- case e_rdsel:
- case e_rrsel:
- case e_fsel:
- default:
- UNDEFINED;
- final_type = base_type;
- break;
- }
- break;
- case 32:
- UNDEFINED;
- final_type = base_type;
- break;
- default:
- UNDEFINED;
- final_type = base_type;
- break;
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Rela *rel;
+ Elf_Internal_Rela *relend;
+
+ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+
+ rel = relocs;
+ relend = relocs + input_section->reloc_count;
+ for (; rel < relend; rel++)
+ {
+ int r_type;
+ reloc_howto_type *howto;
+ unsigned long r_symndx;
+ struct elf_link_hash_entry *h;
+ Elf_Internal_Sym *sym;
+ asection *sym_sec;
+ bfd_vma relocation;
+ bfd_reloc_status_type r;
+ const char *sym_name;
+
+ r_type = ELF32_R_TYPE (rel->r_info);
+ if (r_type < 0 || r_type >= (int) R_PARISC_UNIMPLEMENTED)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ return false;
+ }
+ howto = elf_hppa_howto_table + r_type;
+
+ r_symndx = ELF32_R_SYM (rel->r_info);
+
+ if (info->relocateable)
+ {
+ /* This is a relocateable link. We don't have to change
+ anything, unless the reloc is against a section symbol,
+ in which case we have to adjust according to where the
+ section symbol winds up in the output section. */
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ sym = local_syms + r_symndx;
+ if (ELF_ST_TYPE (sym->st_info) == STT_SECTION)
+ {
+ sym_sec = local_sections[r_symndx];
+ rel->r_addend += sym_sec->output_offset;
}
+ }
+
+ continue;
+ }
+
+ /* This is a final link. */
+ h = NULL;
+ sym = NULL;
+ sym_sec = NULL;
+ if (r_symndx < symtab_hdr->sh_info)
+ {
+ sym = local_syms + r_symndx;
+ sym_sec = local_sections[r_symndx];
+ relocation = ((ELF_ST_TYPE (sym->st_info) == STT_SECTION
+ ? 0 : sym->st_value)
+ + sym_sec->output_offset
+ + sym_sec->output_section->vma);
+ }
+ else
+ {
+ long indx;
+
+ indx = r_symndx - symtab_hdr->sh_info;
+ h = elf_sym_hashes (input_bfd)[indx];
+ while (h->root.type == bfd_link_hash_indirect
+ || h->root.type == bfd_link_hash_warning)
+ h = (struct elf_link_hash_entry *) h->root.u.i.link;
+ if (h->root.type == bfd_link_hash_defined
+ || h->root.type == bfd_link_hash_defweak)
+ {
+ sym_sec = h->root.u.def.section;
+ relocation = (h->root.u.def.value
+ + sym_sec->output_offset
+ + sym_sec->output_section->vma);
+ }
+ else if (h->root.type == bfd_link_hash_undefweak)
+ relocation = 0;
+ else
+ {
+ if (!((*info->callbacks->undefined_symbol)
+ (info, h->root.root.string, input_bfd,
+ input_section, rel->r_offset)))
+ return false;
+ break;
+ }
+ }
+
+ if (h != NULL)
+ sym_name = h->root.root.string;
+ else
+ {
+ sym_name = bfd_elf_string_from_elf_section (input_bfd,
+ symtab_hdr->sh_link,
+ sym->st_name);
+ if (sym_name == NULL)
+ return false;
+ if (*sym_name == '\0')
+ sym_name = bfd_section_name (input_bfd, sym_sec);
+ }
+
+ r = elf32_hppa_bfd_final_link_relocate (howto, input_bfd, output_bfd,
+ input_section, contents,
+ rel->r_offset, relocation,
+ rel->r_addend, info, sym_sec,
+ sym_name, h == NULL);
+
+ if (r != bfd_reloc_ok)
+ {
+ switch (r)
+ {
+ /* This can happen for DP relative relocs if $global$ is
+ undefined. This is a panic situation so we don't try
+ to continue. */
+ case bfd_reloc_undefined:
+ case bfd_reloc_notsupported:
+ if (!((*info->callbacks->undefined_symbol)
+ (info, "$global$", input_bfd,
+ input_section, rel->r_offset)))
+ return false;
+ return false;
+ case bfd_reloc_dangerous:
+ {
+ /* We use this return value to indicate that we performed
+ a "dangerous" relocation. This doesn't mean we did
+ the wrong thing, it just means there may be some cleanup
+ that needs to be done here.
+
+ In particular we had to swap the last call insn and its
+ delay slot. If the delay slot insn needed a relocation,
+ then we'll need to adjust the next relocation entry's
+ offset to account for the fact that the insn moved.
+
+ This hair wouldn't be necessary if we inserted stubs
+ between procedures and used a "bl" to get to the stub. */
+ if (rel != relend)
+ {
+ Elf_Internal_Rela *next_rel = rel + 1;
+
+ if (rel->r_offset + 4 == next_rel->r_offset)
+ next_rel->r_offset -= 4;
+ }
break;
- case R_HPPA_UNWIND:
- final_type = R_HPPA_UNWIND_ENTRY;
- break;
+ }
default:
- final_type = base_type;
- break;
+ case bfd_reloc_outofrange:
+ case bfd_reloc_overflow:
+ {
+ if (!((*info->callbacks->reloc_overflow)
+ (info, sym_name, howto->name, (bfd_vma) 0,
+ input_bfd, input_section, rel->r_offset)))
+ return false;
+ }
+ break;
+ }
}
+ }
- return final_type;
+ return true;
}
-/* 12.4.4. Derive format from instruction */
+/* Actually perform a relocation. NOTE this is (mostly) superceeded
+ by elf32_hppa_bfd_final_link_relocate which is called by the new
+ fast linker. */
-/* Given a machine instruction, this function determines its format. */
-/* The format can be determined solely from looking at the first six */
-/* bits (the major opcode) of the instruction. Several major opcodes */
-/* map to the same format. Opcodes which do not map to a known format */
-/* should probably be reported as an error. */
-
-unsigned char
-hppa_elf_insn2fmt(type, insn)
-elf32_hppa_reloc_type type;
-unsigned long insn;
+static bfd_reloc_status_type
+hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd,
+ error_message)
+ bfd *abfd;
+ arelent *reloc_entry;
+ asymbol *symbol_in;
+ PTR data;
+ asection *input_section;
+ bfd *output_bfd;
+ char **error_message;
{
- unsigned char fmt = 0; /* XXX: is this a proper default? */
- unsigned char op = get_opcode(insn);
-
- if ( type == R_HPPA_NONE )
- fmt = 0;
- else {
- switch ( op ) {
- case ADDI:
- case ADDIT:
- case SUBI:
- fmt = 11;
- break;
- case MOVB:
- case MOVIB:
- case COMBT:
- case COMBF:
- case COMIBT:
- case COMIBF:
- case ADDBT:
- case ADDBF:
- case ADDIBT:
- case ADDIBF:
- case BVB:
- case BB:
- fmt = 12;
- break;
- case LDO:
- case LDB:
- case LDH:
- case LDW:
- case LDWM:
- case STB:
- case STH:
- case STW:
- case STWM:
- fmt = 14;
- break;
- case BL:
- case BE:
- case BLE:
- fmt = 17;
- break;
- case LDIL:
- case ADDIL:
- fmt = 21;
- break;
- default:
- fmt = 32;
- break;
- }
-
- }
- return fmt;
+ /* It is no longer valid to call hppa_elf_reloc when creating
+ a final executable. */
+ if (output_bfd)
+ {
+ reloc_entry->address += input_section->output_offset;
+
+ /* Work around lossage in generic elf code to write relocations.
+ (maps different section symbols into the same symbol index). */
+ if ((symbol_in->flags & BSF_SECTION_SYM)
+ && symbol_in->section)
+ reloc_entry->addend += symbol_in->section->output_offset;
+ return bfd_reloc_ok;
+ }
+ else
+ {
+ *error_message = (char *) _("Unsupported call to hppa_elf_reloc");
+ return bfd_reloc_notsupported;
+ }
}
-/* this function is in charge of performing all the HP PA relocations */
-long global_value = 0;
-long GOT_value = 0; /* XXX: need to calculate this! For HPUX, GOT == DP */
-asymbol *global_symbol = (asymbol *)NULL;
+/* Actually perform a relocation as part of a final link. This can get
+ rather hairy when linker stubs are needed. */
static bfd_reloc_status_type
-DEFUN(hppa_elf_reloc,(abfd, reloc_entry, symbol_in, data, input_section, output_bfd),
- bfd *abfd AND
- arelent *reloc_entry AND
- asymbol *symbol_in AND
- PTR data AND
- asection *input_section AND
- bfd *output_bfd)
+elf32_hppa_bfd_final_link_relocate (howto, input_bfd, output_bfd,
+ input_section, contents, offset, value,
+ addend, info, sym_sec, sym_name, is_local)
+ reloc_howto_type *howto;
+ bfd *input_bfd;
+ bfd *output_bfd;
+ asection *input_section;
+ bfd_byte *contents;
+ bfd_vma offset;
+ bfd_vma value;
+ bfd_vma addend;
+ struct bfd_link_info *info;
+ asection *sym_sec;
+ const char *sym_name;
+ int is_local;
{
- unsigned long insn;
- long sym_value = 0;
- unsigned long unsigned_value;
- long signed_value;
-
- unsigned long addr = reloc_entry->address ; /*+ input_section->vma*/
- bfd_byte *hit_data = addr + (bfd_byte *)(data);
- unsigned short r_type = reloc_entry->howto->type & 0xFF;
- unsigned short r_field = e_fsel;
- boolean r_pcrel = reloc_entry->howto->pc_relative;
-
- /* howto->bitsize contains the format (11, 14, 21, etc) information */
- unsigned r_format = reloc_entry->howto->bitsize;
- long r_addend = reloc_entry->addend;
-
-
- if (output_bfd) {
- /* Partial linking - do nothing */
- reloc_entry->address += input_section->output_offset;
- return bfd_reloc_ok;
+ unsigned long insn;
+ unsigned long r_type = howto->type;
+ unsigned long r_format = howto->bitsize;
+ unsigned long r_field = e_fsel;
+ bfd_byte *hit_data = contents + offset;
+ boolean r_pcrel = howto->pc_relative;
+
+ insn = bfd_get_32 (input_bfd, hit_data);
+
+ /* Make sure we have a value for $global$. FIXME isn't this effectively
+ just like the gp pointer on MIPS? Can we use those routines for this
+ purpose? */
+ if (!elf32_hppa_hash_table (info)->global_sym_defined)
+ {
+ struct elf_link_hash_entry *h;
+ asection *sec;
+
+ h = elf_link_hash_lookup (elf_hash_table (info), "$global$", false,
+ false, false);
+
+ /* If there isn't a $global$, then we're in deep trouble. */
+ if (h == NULL)
+ return bfd_reloc_notsupported;
+
+ /* If $global$ isn't a defined symbol, then we're still in deep
+ trouble. */
+ if (h->root.type != bfd_link_hash_defined)
+ return bfd_reloc_undefined;
+
+ sec = h->root.u.def.section;
+ elf32_hppa_hash_table (info)->global_value = (h->root.u.def.value
+ + sec->output_section->vma
+ + sec->output_offset);
+ elf32_hppa_hash_table (info)->global_sym_defined = 1;
+ }
+
+ switch (r_type)
+ {
+ case R_PARISC_NONE:
+ break;
+
+ case R_PARISC_DIR32:
+ case R_PARISC_DIR17F:
+ case R_PARISC_PCREL17C:
+ r_field = e_fsel;
+ goto do_basic_type_1;
+ case R_PARISC_DIR21L:
+ case R_PARISC_PCREL21L:
+ r_field = e_lrsel;
+ goto do_basic_type_1;
+ case R_PARISC_DIR17R:
+ case R_PARISC_PCREL17R:
+ case R_PARISC_DIR14R:
+ case R_PARISC_PCREL14R:
+ r_field = e_rrsel;
+ goto do_basic_type_1;
+
+ /* For all the DP relative relocations, we need to examine the symbol's
+ section. If it's a code section, then "data pointer relative" makes
+ no sense. In that case we don't adjust the "value", and for 21 bit
+ addil instructions, we change the source addend register from %dp to
+ %r0. */
+ case R_PARISC_DPREL21L:
+ r_field = e_lrsel;
+ if (sym_sec->flags & SEC_CODE)
+ {
+ if ((insn & 0xfc000000) >> 26 == 0xa
+ && (insn & 0x03e00000) >> 21 == 0x1b)
+ insn &= ~0x03e00000;
}
+ else
+ value -= elf32_hppa_hash_table (info)->global_value;
+ goto do_basic_type_1;
+ case R_PARISC_DPREL14R:
+ r_field = e_rrsel;
+ if ((sym_sec->flags & SEC_CODE) == 0)
+ value -= elf32_hppa_hash_table (info)->global_value;
+ goto do_basic_type_1;
+ case R_PARISC_DPREL14F:
+ r_field = e_fsel;
+ if ((sym_sec->flags & SEC_CODE) == 0)
+ value -= elf32_hppa_hash_table (info)->global_value;
+ goto do_basic_type_1;
+
+ /* These cases are separate as they may involve a lot more work
+ to deal with linker stubs. */
+ case R_PARISC_PLABEL32:
+ case R_PARISC_PLABEL21L:
+ case R_PARISC_PLABEL14R:
+ case R_PARISC_PCREL17F:
+ {
+ bfd_vma location;
+ unsigned int len, caller_args, callee_args;
+ char *new_name, *stub_name;
+
+ /* Get the field selector right. We'll need it in a minute. */
+ if (r_type == R_PARISC_PCREL17F
+ || r_type == R_PARISC_PLABEL32)
+ r_field = e_fsel;
+ else if (r_type == R_PARISC_PLABEL21L)
+ r_field = e_lrsel;
+ else if (r_type == R_PARISC_PLABEL14R)
+ r_field = e_rrsel;
+
+ /* Find out where we are and where we're going. */
+ location = (offset +
+ input_section->output_offset +
+ input_section->output_section->vma);
+
+ len = strlen (sym_name) + 1;
+ if (is_local)
+ len += 9;
+ new_name = bfd_malloc (len);
+ if (!new_name)
+ return bfd_reloc_notsupported;
+ strcpy (new_name, sym_name);
+
+ /* Local symbols have unique IDs. */
+ if (is_local)
+ sprintf (new_name + len - 10, "_%08x", (int)sym_sec);
+
+ /* Any kind of linker stub needed? */
+ if (((int)(value - location) > 0x3ffff)
+ || ((int)(value - location) < (int)0xfffc0000))
+ {
+ struct elf32_hppa_stub_hash_table *stub_hash_table;
+ struct elf32_hppa_stub_hash_entry *stub_hash;
+ asection *stub_section;
+
+ /* Build a name for the stub. */
+
+ len = strlen (new_name);
+ len += 23;
+ stub_name = bfd_malloc (len);
+ if (!stub_name)
+ return bfd_reloc_notsupported;
+ elf32_hppa_name_of_stub (location, value, stub_name);
+ strcat (stub_name, new_name);
+ free (new_name);
+
+ stub_hash_table = elf32_hppa_hash_table (info)->stub_hash_table;
+
+ stub_hash
+ = elf32_hppa_stub_hash_lookup (stub_hash_table, stub_name,
+ false, false);
+
+ /* We're done with that name. */
+ free (stub_name);
+
+ /* The stub BFD only has one section. */
+ stub_section = stub_hash_table->stub_bfd->sections;
+
+ if (stub_hash != NULL)
+ {
+ if (r_type == R_PARISC_PCREL17F)
+ {
+ unsigned long delay_insn;
+ unsigned int opcode, rtn_reg, ldo_target_reg, ldo_src_reg;
+
+ /* We'll need to peek at the next insn. */
+ delay_insn = bfd_get_32 (input_bfd, hit_data + 4);
+ opcode = get_opcode (delay_insn);
+
+ /* We also need to know the return register for this
+ call. */
+ rtn_reg = (insn & 0x03e00000) >> 21;
+
+ ldo_src_reg = (delay_insn & 0x03e00000) >> 21;
+ ldo_target_reg = (delay_insn & 0x001f0000) >> 16;
+
+ /* Munge up the value and other parameters for
+ hppa_elf_relocate_insn. */
+
+ value = (stub_hash->offset
+ + stub_section->output_offset
+ + stub_section->output_section->vma);
+
+ r_format = 17;
+ r_field = e_fsel;
+ r_pcrel = 0;
+ addend = 0;
+
+ /* We need to peek at the delay insn and determine if
+ we'll need to swap the branch and its delay insn. */
+ if ((insn & 2)
+ || (opcode == LDO
+ && ldo_target_reg == rtn_reg)
+ || (delay_insn == 0x08000240))
+ {
+ /* No need to swap the branch and its delay slot, but
+ we do need to make sure to jump past the return
+ pointer update in the stub. */
+ value += 4;
+
+ /* If the delay insn does a return pointer adjustment,
+ then we have to make sure it stays valid. */
+ if (opcode == LDO
+ && ldo_target_reg == rtn_reg)
+ {
+ delay_insn &= 0xfc00ffff;
+ delay_insn |= ((31 << 21) | (31 << 16));
+ bfd_put_32 (input_bfd, delay_insn, hit_data + 4);
+ }
+ /* Use a BLE to reach the stub. */
+ insn = BLE_SR4_R0;
+ }
+ else
+ {
+ /* Wonderful, we have to swap the call insn and its
+ delay slot. */
+ bfd_put_32 (input_bfd, delay_insn, hit_data);
+ /* Use a BLE,n to reach the stub. */
+ insn = (BLE_SR4_R0 | 0x2);
+ bfd_put_32 (input_bfd, insn, hit_data + 4);
+ insn = hppa_elf_relocate_insn (input_bfd,
+ input_section,
+ insn, offset + 4,
+ value, addend,
+ r_format, r_field,
+ r_pcrel);
+ /* Update the instruction word. */
+ bfd_put_32 (input_bfd, insn, hit_data + 4);
+ return bfd_reloc_dangerous;
+ }
+ }
+ else
+ return bfd_reloc_notsupported;
+ }
+ }
+ goto do_basic_type_1;
+ }
+
+do_basic_type_1:
+ insn = hppa_elf_relocate_insn (input_bfd, input_section, insn,
+ offset, value, addend, r_format,
+ r_field, r_pcrel);
+ break;
+
+ /* Something we don't know how to handle. */
+ default:
+ return bfd_reloc_notsupported;
+ }
+
+ /* Update the instruction word. */
+ bfd_put_32 (input_bfd, insn, hit_data);
+ return (bfd_reloc_ok);
+}
- if ( symbol_in && symbol_in->section == &bfd_und_section )
- return bfd_reloc_undefined;
-
- sym_value = get_symbol_value(symbol_in);
-
- /* compute value of $global$ if it is there. */
+/* Return true if SYM represents a local label symbol. */
- if ( global_symbol == (asymbol *)NULL ) {
- struct elf_backend_data * bed
- = (struct elf_backend_data *)abfd->xvec->backend_data;
+static boolean
+hppa_elf_is_local_label_name (abfd, name)
+ bfd *abfd;
+ const char *name;
+{
+ return (name[0] == 'L' && name[1] == '$');
+}
- if ( bed && bed->global_sym ) {
- asymbol *gsym = &bed->global_sym->symbol;
- global_value
- = gsym->value
- + gsym->section->output_section->vma
- + gsym->section->output_offset;
- GOT_value = global_value; /* XXX: For HP-UX, GOT==DP */
- global_symbol = gsym;
- }
- }
+/* Undo the generic ELF code's subtraction of section->vma from the
+ value of each external symbol. */
+
+static boolean
+elf32_hppa_add_symbol_hook (abfd, info, sym, namep, flagsp, secp, valp)
+ bfd *abfd;
+ struct bfd_link_info *info;
+ const Elf_Internal_Sym *sym;
+ const char **namep;
+ flagword *flagsp;
+ asection **secp;
+ bfd_vma *valp;
+{
+ *valp += (*secp)->vma;
+ return true;
+}
- /* get the instruction word */
- insn = bfd_get_32(abfd, hit_data);
-
- /* relocate the value based on the relocation type */
-
- /* basic_type_1: relocation is relative to $global$ */
- /* basic_type_2: relocation is relative to the current GOT */
- /* basic_type_3: relocation is an absolute call */
- /* basic_type_4: relocation is an PC-relative call */
- /* basic_type_5: relocation is plabel reference */
- /* basic_type_6: relocation is an unwind table relocation */
- /* extended_type: unimplemented */
-
- switch ( r_type ) {
- case R_HPPA_NONE:
- break;
- case R_HPPA_32: /* Symbol + Addend 32 */
-
- r_field = e_fsel;
- goto do_basic_type_1;
- case R_HPPA_L21: /* L (Symbol, Addend) 21 */
- r_field = e_lsel;
- goto do_basic_type_1;
- case R_HPPA_R11: /* R (Symbol, Addend) 11 */
- r_field = e_rsel;
- goto do_basic_type_1;
- case R_HPPA_R14: /* R (Symbol, Addend) 14 */
- r_field = e_rsel;
- goto do_basic_type_1;
- case R_HPPA_R17: /* R (Symbol, Addend) 17 */
- r_field = e_rsel;
- goto do_basic_type_1;
- case R_HPPA_LS21: /* LS(Symbol, Addend) 21 */
- r_field = e_lssel;
- goto do_basic_type_1;
- case R_HPPA_RS11: /* RS(Symbol, Addend) 11 */
- r_field = e_rssel;
- goto do_basic_type_1;
- case R_HPPA_RS14: /* RS(Symbol, Addend) 14 */
- r_field = e_rssel;
- goto do_basic_type_1;
- case R_HPPA_RS17: /* RS(Symbol, Addend) 17 */
- r_field = e_ldsel;
- goto do_basic_type_1;
- case R_HPPA_LD21: /* LD(Symbol, Addend) 21 */
- r_field = e_ldsel;
- goto do_basic_type_1;
- case R_HPPA_RD11: /* RD(Symbol, Addend) 11 */
- r_field = e_rdsel;
- goto do_basic_type_1;
- case R_HPPA_RD14: /* RD(Symbol, Addend) 14 */
- r_field = e_rdsel;
- goto do_basic_type_1;
- case R_HPPA_RD17: /* RD(Symbol, Addend) 17 */
- r_field = e_rdsel;
- goto do_basic_type_1;
- case R_HPPA_LR21: /* LR(Symbol, Addend) 21 */
- r_field = e_lrsel;
- goto do_basic_type_1;
- case R_HPPA_RR14: /* RR(Symbol, Addend) 14 */
- r_field = e_rrsel;
- goto do_basic_type_1;
- case R_HPPA_RR17: /* RR(Symbol, Addend) 17 */
- r_field = e_rrsel;
-
- do_basic_type_1:
- insn = hppa_elf_relocate_insn(abfd, input_section, insn, addr,
- symbol_in, sym_value, r_addend,
- r_type, r_format, r_field, r_pcrel);
- break;
-
- case R_HPPA_GOTOFF_11: /* Symbol - GOT + Addend 11 */
- r_field = e_fsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_14: /* Symbol - GOT + Addend 14 */
- r_field = e_fsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_L21: /* L (Sym - GOT, Addend) 21 */
- r_field = e_lsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_R11: /* R (Sym - GOT, Addend) 11 */
- r_field = e_rsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_R14: /* R (Sym - GOT, Addend) 14 */
- r_field = e_rsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_LS21: /* LS(Sym - GOT, Addend) 21 */
- r_field = e_lssel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_RS11: /* RS(Sym - GOT, Addend) 11 */
- r_field = e_rssel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_RS14: /* RS(Sym - GOT, Addend) 14 */
- r_field = e_rssel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_LD21: /* LD(Sym - GOT, Addend) 21 */
- r_field = e_ldsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_RD11: /* RD(Sym - GOT, Addend) 11 */
- r_field = e_rdsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_RD14: /* RD(Sym - GOT, Addend) 14 */
- r_field = e_rdsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_LR21: /* LR(Sym - GOT, Addend) 21 */
- r_field = e_lrsel;
- goto do_basic_type_2;
- case R_HPPA_GOTOFF_RR14: /* RR(Sym - GOT, Addend) 14 */
- r_field = e_rrsel;
- do_basic_type_2:
- sym_value -= GOT_value;
- insn = hppa_elf_relocate_insn(abfd, input_section, insn, addr,
- symbol_in, sym_value, r_addend,
- r_type, r_format, r_field, r_pcrel);
- break;
-
- case R_HPPA_ABS_CALL_11: /* Symbol + Addend 11 */
- r_field = e_fsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_14: /* Symbol + Addend 14 */
- r_field = e_fsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_17: /* Symbol + Addend 17 */
- r_field = e_fsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_L21: /* L (Symbol, Addend) 21 */
- r_field = e_lsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_R11: /* R (Symbol, Addend) 11 */
- r_field = e_rsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_R14: /* R (Symbol, Addend) 14 */
- r_field = e_rsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_R17: /* R (Symbol, Addend) 17 */
- r_field = e_rsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_LS21: /* LS(Symbol, Addend) 21 */
- r_field = e_lssel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_RS11: /* RS(Symbol, Addend) 11 */
- r_field = e_lssel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_RS14: /* RS(Symbol, Addend) 14 */
- r_field = e_rssel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_RS17: /* RS(Symbol, Addend) 17 */
- r_field = e_rssel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_LD21: /* LD(Symbol, Addend) 21 */
- r_field = e_ldsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_RD11: /* RD(Symbol, Addend) 11 */
- r_field = e_rdsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_RD14: /* RD(Symbol, Addend) 14 */
- r_field = e_rdsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_RD17: /* RD(Symbol, Addend) 17 */
- r_field = e_rdsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_LR21: /* LR(Symbol, Addend) 21 */
- r_field = e_lrsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_RR14: /* RR(Symbol, Addend) 14 */
- r_field = e_rrsel;
- goto do_basic_type_3;
- case R_HPPA_ABS_CALL_RR17: /* RR(Symbol, Addend) 17 */
- r_field = e_rrsel;
- do_basic_type_3:
- insn = hppa_elf_relocate_insn(abfd, input_section, insn, addr,
- symbol_in, sym_value, r_addend,
- r_type, r_format, r_field, r_pcrel);
- break;
-
- case R_HPPA_PCREL_CALL_11: /* Symbol - PC + Addend 11 */
- r_field = e_fsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_14: /* Symbol - PC + Addend 14 */
- r_field = e_fsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_17: /* Symbol - PC + Addend 17 */
- r_field = e_fsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_L21: /* L (Symbol - PC, Addend) 21 */
- r_field = e_lsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_R11: /* R (Symbol - PC, Addend) 11 */
- r_field = e_rsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_R14: /* R (Symbol - PC, Addend) 14 */
- r_field = e_rsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_R17: /* R (Symbol - PC, Addend) 17 */
- r_field = e_rsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_LS21: /* LS(Symbol - PC, Addend) 21 */
- r_field = e_lssel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_RS11: /* RS(Symbol - PC, Addend) 11 */
- r_field = e_rssel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_RS14: /* RS(Symbol - PC, Addend) 14 */
- r_field = e_rssel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_RS17: /* RS(Symbol - PC, Addend) 17 */
- r_field = e_rssel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_LD21: /* LD(Symbol - PC, Addend) 21 */
- r_field = e_ldsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_RD11: /* RD(Symbol - PC, Addend) 11 */
- r_field = e_rdsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_RD14: /* RD(Symbol - PC, Addend) 14 */
- r_field = e_rdsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_RD17: /* RD(Symbol - PC, Addend) 17 */
- r_field = e_rdsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_LR21: /* LR(Symbol - PC, Addend) 21 */
- r_field = e_lrsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_RR14: /* RR(Symbol - PC, Addend) 14 */
- r_field = e_rrsel;
- goto do_basic_type_4;
- case R_HPPA_PCREL_CALL_RR17: /* RR(Symbol - PC, Addend) 17 */ /* #69 */
- r_field = e_rrsel;
- do_basic_type_4:
- insn = hppa_elf_relocate_insn(abfd, input_section, insn, addr,
- symbol_in, sym_value, r_addend,
- r_type, r_format, r_field, r_pcrel);
- break;
-
- case R_HPPA_PLABEL_32:
- case R_HPPA_PLABEL_11:
- case R_HPPA_PLABEL_14:
- r_field = e_fsel;
- goto do_basic_type_5;
- case R_HPPA_PLABEL_L21:
- r_field = e_lsel;
- goto do_basic_type_5;
- case R_HPPA_PLABEL_R11:
- case R_HPPA_PLABEL_R14:
- r_field = e_rsel;
- do_basic_type_5:
- insn = hppa_elf_relocate_insn(abfd, input_section, insn, addr,
- symbol_in, sym_value, r_addend,
- r_type, r_format, r_field, r_pcrel);
- break;
-
- case R_HPPA_UNWIND_ENTRY:
- case R_HPPA_UNWIND_ENTRIES:
- hppa_elf_relocate_unwind_table(abfd, input_section, data, addr,
- symbol_in, sym_value, r_addend,
- r_type, r_format, r_field, r_pcrel);
- return (bfd_reloc_ok);
-
- case R_HPPA_PUSH_CONST: /* push Addend - - */
- case R_HPPA_PUSH_SYM: /* push Symbol - - */
- case R_HPPA_PUSH_GOT: /* push GOT - - */
- case R_HPPA_PUSH_PC: /* push PC - - */
- case R_HPPA_PUSH_PROC: /* push Symbol - - */
- case R_HPPA_PUSH_PLABEL: /* [TBD] - - */
- case R_HPPA_MAX: /* pop A and B, push max(B,A) - - */
- case R_HPPA_MIN: /* pop A and B, push min(B,A) - - */
- case R_HPPA_ADD: /* pop A and B, push B + A - - */
- case R_HPPA_SUB: /* pop A and B, push B - A - - */
- case R_HPPA_MULT: /* pop A and B, push B * A - - */
- case R_HPPA_DIV: /* pop A and B, push B / A - - */
- case R_HPPA_MOD: /* pop A and B, push B % A - - */
- case R_HPPA_AND: /* pop A and B, push B & A - - */
- case R_HPPA_OR: /* pop A and B, push B | A - - */
- case R_HPPA_XOR: /* pop A and B, push B ^ A - - */
- case R_HPPA_NOT: /* pop A, push ~A - - */
- case R_HPPA_LSHIFT: /* pop A, push A << Addend - - */
- case R_HPPA_ARITH_RSHIFT: /* pop A, push A >> Addend - - */
- case R_HPPA_LOGIC_RSHIFT: /* pop A, push A >> Addend - - */
- case R_HPPA_EXPR_F: /* pop A, push A + Addend L - */
- case R_HPPA_EXPR_L: /* pop A, push L(A,Addend) L - */
- case R_HPPA_EXPR_R: /* pop A, push R(A,Addend) R - */
- case R_HPPA_EXPR_LS: /* pop A, push LS(A,Addend) LS - */
- case R_HPPA_EXPR_RS: /* pop A, push RS(A,Addend) RS - */
- case R_HPPA_EXPR_LD: /* pop A, push LD(A,Addend) LD - */
- case R_HPPA_EXPR_RD: /* pop A, push RD(A,Addend) RD - */
- case R_HPPA_EXPR_LR: /* pop A, push LR(A,Addend) LR - */
- case R_HPPA_EXPR_RR: /* pop A, push RR(A,Addend) RR - */
-
- case R_HPPA_EXPR_32: /* pop - 32 */
- case R_HPPA_EXPR_21: /* pop - 21 */
- case R_HPPA_EXPR_11: /* pop - 11 */
- case R_HPPA_EXPR_14: /* pop - 14 */
- case R_HPPA_EXPR_17: /* pop - 17 */
- case R_HPPA_EXPR_12: /* pop - 12 */
- fprintf(stderr, "Relocation problem: ");
- fprintf(stderr,"Unimplemented reloc type %d, in module %s\n",
- r_type,abfd->filename);
- return(bfd_reloc_notsupported);
- default:
- fprintf(stderr,"Relocation problem : ");
- fprintf(stderr,"Unrecognized reloc type %d, in module %s\n",
- r_type,abfd->filename);
- return (bfd_reloc_dangerous);
- }
+/* Determine the name of the stub needed to perform a call assuming the
+ argument relocation bits for caller and callee are in CALLER and CALLEE
+ for a call from LOCATION to DESTINATION. Copy the name into STUB_NAME. */
- /* update the instruction word */
- bfd_put_32(abfd, insn ,hit_data);
+static void
+elf32_hppa_name_of_stub (location, destination, stub_name)
+ bfd_vma location, destination;
+ char *stub_name;
+{
+ strcpy (stub_name, "_____long_branch_stub_");
+}
- return (bfd_reloc_ok);
+/* Compute the size of the stub needed to call from LOCATION to DESTINATION
+ (a function named SYM_NAME), with argument relocation bits CALLER and
+ CALLEE. Return zero if no stub is needed to perform such a call. */
+static unsigned int
+elf32_hppa_size_of_stub (location, destination, sym_name)
+ bfd_vma location, destination;
+ const char *sym_name;
+{
+ /* Determine if a long branch stub is needed. */
+ if (!(((int)(location - destination) > 0x3ffff)
+ || ((int)(location - destination) < (int)0xfffc0000)))
+ return 0;
+
+ if (!strncmp ("$$", sym_name, 2)
+ && strcmp ("$$dyncall", sym_name))
+ return 12;
+ else
+ return 16;
}
-static reloc_howto_type *
-elf_hppa_reloc_type_lookup (arch, code)
- bfd_arch_info_type *arch;
- bfd_reloc_code_real_type code;
+/* Build one linker stub as defined by the stub hash table entry GEN_ENTRY.
+ IN_ARGS contains the stub BFD and link info pointers. */
+
+static boolean
+elf32_hppa_build_one_stub (gen_entry, in_args)
+ struct bfd_hash_entry *gen_entry;
+ PTR in_args;
{
- if ( code < R_HPPA_UNIMPLEMENTED ) {
- return &elf_hppa_howto_table[code];
+ void **args = (void **)in_args;
+ bfd *stub_bfd = (bfd *)args[0];
+ struct bfd_link_info *info = (struct bfd_link_info *)args[1];
+ struct elf32_hppa_stub_hash_entry *entry;
+ struct elf32_hppa_stub_hash_table *stub_hash_table;
+ bfd_byte *loc;
+ symvalue sym_value;
+ const char *sym_name;
+
+ /* Initialize pointers to the stub hash table, the particular entry we
+ are building a stub for, and where (in memory) we should place the stub
+ instructions. */
+ entry = (struct elf32_hppa_stub_hash_entry *)gen_entry;
+ stub_hash_table = elf32_hppa_hash_table(info)->stub_hash_table;
+ loc = stub_hash_table->location;
+
+ /* Make a note of the offset within the stubs for this entry. */
+ entry->offset = stub_hash_table->offset;
+
+ /* The symbol's name starts at offset 22. */
+ sym_name = entry->root.string + 22;
+
+ sym_value = (entry->target_value
+ + entry->target_section->output_offset
+ + entry->target_section->output_section->vma);
+
+ if (1)
+ {
+ /* Create one of two variant long branch stubs. One for $$dyncall and
+ normal calls, the other for calls to millicode. */
+ unsigned long insn;
+ int millicode_call = 0;
+
+ if (!strncmp ("$$", sym_name, 2) && strcmp ("$$dyncall", sym_name))
+ millicode_call = 1;
+
+ /* First the return pointer adjustment. Depending on exact calling
+ sequence this instruction may be skipped. */
+ bfd_put_32 (stub_bfd, LDO_M4_R31_R31, loc);
+
+ /* The next two instructions are the long branch itself. A long branch
+ is formed with "ldil" loading the upper bits of the target address
+ into a register, then branching with "be" which adds in the lower bits.
+ Long branches to millicode nullify the delay slot of the "be". */
+ insn = hppa_rebuild_insn (stub_bfd, LDIL_R1,
+ hppa_field_adjust (sym_value, 0, e_lrsel), 21);
+ bfd_put_32 (stub_bfd, insn, loc + 4);
+ insn = hppa_rebuild_insn (stub_bfd, BE_SR4_R1 | (millicode_call ? 2 : 0),
+ hppa_field_adjust (sym_value, 0, e_rrsel) >> 2,
+ 17);
+ bfd_put_32 (stub_bfd, insn, loc + 8);
+
+ if (!millicode_call)
+ {
+ /* The sequence to call this stub places the return pointer into %r31,
+ the final target expects the return pointer in %r2, so copy the
+ return pointer into the proper register. */
+ bfd_put_32 (stub_bfd, COPY_R31_R2, loc + 12);
+
+ /* Update the location and offsets. */
+ stub_hash_table->location += 16;
+ stub_hash_table->offset += 16;
+ }
+ else
+ {
+ /* Update the location and offsets. */
+ stub_hash_table->location += 12;
+ stub_hash_table->offset += 12;
}
- return (reloc_howto_type *)0;
+ }
+ return true;
}
-#include "elfcode.h"
+/* External entry points for sizing and building linker stubs. */
+
+/* Build all the stubs associated with the current output file. The
+ stubs are kept in a hash table attached to the main linker hash
+ table. This is called via hppaelf_finish in the linker. */
-bfd_target elf_big_vec =
+boolean
+elf32_hppa_build_stubs (stub_bfd, info)
+ bfd *stub_bfd;
+ struct bfd_link_info *info;
{
- /* name: identify kind of target */
- "elf-big",
-
- /* flavour: general indication about file */
- bfd_target_elf_flavour,
-
- /* byteorder_big_p: data is big endian */
- true,
-
- /* header_byteorder_big_p: header is also big endian */
- true,
-
- /* object_flags: mask of all file flags */
- (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
- DYNAMIC | WP_TEXT),
-
- /* section_flags: mask of all section flags */
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
- SEC_CODE | SEC_DATA),
-
- /* ar_pad_char: pad character for filenames within an archive header
- FIXME: this really has nothing to do with ELF, this is a characteristic
- of the archiver and/or os and should be independently tunable */
- '/',
-
- /* ar_max_namelen: maximum number of characters in an archive header
- FIXME: this really has nothing to do with ELF, this is a characteristic
- of the archiver and should be independently tunable. This value is
- a WAG (wild a** guess) */
- 15,
-
- /* align_power_min: minimum alignment restriction for any section
- FIXME: this value may be target machine dependent */
- 3,
-
- /* Routines to byte-swap various sized integers from the data sections */
- _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16,
-
- /* Routines to byte-swap various sized integers from the file headers */
- _do_getb64, _do_putb64, _do_getb32, _do_putb32, _do_getb16, _do_putb16,
-
- /* bfd_check_format: check the format of a file being read */
- { _bfd_dummy_target, /* unknown format */
- elf_object_p, /* assembler/linker output (object file) */
- bfd_generic_archive_p, /* an archive */
- elf_core_file_p /* a core file */
- },
-
- /* bfd_set_format: set the format of a file being written */
- { bfd_false,
- elf_mkobject,
- _bfd_generic_mkarchive,
- bfd_false
- },
-
- /* bfd_write_contents: write cached information into a file being written */
- { bfd_false,
- elf_write_object_contents,
- _bfd_write_archive_contents,
- bfd_false
- },
-
- /* Initialize a jump table with the standard macro. All names start
- with "elf" */
- JUMP_TABLE(elf),
-
- /* SWAP_TABLE */
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- elf_hppa_reloc_type_lookup,
- NULL, /* _bfd_make_debug_symbol */
- (PTR)&elf_hppa_backend_data
-};
+ /* The stub BFD only has one section. */
+ asection *stub_sec = stub_bfd->sections;
+ struct elf32_hppa_stub_hash_table *table;
+ unsigned int size;
+ void *args[2];
+
+ /* So we can pass both the BFD for the stubs and the link info
+ structure to the routine which actually builds stubs. */
+ args[0] = stub_bfd;
+ args[1] = info;
+
+ /* Allocate memory to hold the linker stubs. */
+ size = bfd_section_size (stub_bfd, stub_sec);
+ stub_sec->contents = (unsigned char *) bfd_zalloc (stub_bfd, size);
+ if (stub_sec->contents == NULL)
+ return false;
+ table = elf32_hppa_hash_table(info)->stub_hash_table;
+ table->location = stub_sec->contents;
+
+ /* Build the stubs as directed by the stub hash table. */
+ elf32_hppa_stub_hash_traverse (table, elf32_hppa_build_one_stub, args);
+
+ return true;
+}
-bfd_target elf_little_vec =
+/* Determine and set the size of the stub section for a final link.
+
+ The basic idea here is to examine all the relocations looking for
+ PC-relative calls to a target that is unreachable with a "bl"
+ instruction or calls where the caller and callee disagree on the
+ location of their arguments or return value. */
+
+boolean
+elf32_hppa_size_stubs (stub_bfd, output_bfd, link_info)
+ bfd *stub_bfd;
+ bfd *output_bfd;
+ struct bfd_link_info *link_info;
{
- /* name: identify kind of target */
- "elf-little",
-
- /* flavour: general indication about file */
- bfd_target_elf_flavour,
-
- /* byteorder_big_p: data is big endian */
- false, /* Nope -- this one's little endian */
-
- /* header_byteorder_big_p: header is also big endian */
- false, /* Nope -- this one's little endian */
-
- /* object_flags: mask of all file flags */
- (HAS_RELOC | EXEC_P | HAS_LINENO | HAS_DEBUG | HAS_SYMS | HAS_LOCALS |
- DYNAMIC | WP_TEXT),
-
- /* section_flags: mask of all section flags */
- (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC | SEC_READONLY |
- SEC_DATA),
-
- /* ar_pad_char: pad character for filenames within an archive header
- FIXME: this really has nothing to do with ELF, this is a characteristic
- of the archiver and/or os and should be independently tunable */
- '/',
-
- /* ar_max_namelen: maximum number of characters in an archive header
- FIXME: this really has nothing to do with ELF, this is a characteristic
- of the archiver and should be independently tunable. This value is
- a WAG (wild a** guess) */
- 15,
-
- /* align_power_min: minimum alignment restriction for any section
- FIXME: this value may be target machine dependent */
- 3,
-
- /* Routines to byte-swap various sized integers from the data sections */
- _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16,
-
- /* Routines to byte-swap various sized integers from the file headers */
- _do_getl64, _do_putl64, _do_getl32, _do_putl32, _do_getl16, _do_putl16,
-
- /* bfd_check_format: check the format of a file being read */
- { _bfd_dummy_target, /* unknown format */
- elf_object_p, /* assembler/linker output (object file) */
- bfd_generic_archive_p, /* an archive */
- elf_core_file_p /* a core file */
- },
-
- /* bfd_set_format: set the format of a file being written */
- { bfd_false,
- elf_mkobject,
- _bfd_generic_mkarchive,
- bfd_false
- },
-
- /* bfd_write_contents: write cached information into a file being written */
- { bfd_false,
- elf_write_object_contents,
- _bfd_write_archive_contents,
- bfd_false
- },
-
- /* Initialize a jump table with the standard macro. All names start
- with "elf" */
- JUMP_TABLE(elf),
-
- /* SWAP_TABLE */
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- elf_hppa_reloc_type_lookup,
- NULL, /* _bfd_make_debug_symbol */
- (PTR)&elf_hppa_backend_data
-};
+ bfd *input_bfd;
+ asection *section, *stub_sec = 0;
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Sym *local_syms, *isym, **all_local_syms;
+ Elf32_External_Sym *ext_syms, *esym;
+ unsigned int i, index, bfd_count = 0;
+ struct elf32_hppa_stub_hash_table *stub_hash_table = 0;
+
+ /* Create and initialize the stub hash table. */
+ stub_hash_table = ((struct elf32_hppa_stub_hash_table *)
+ bfd_malloc (sizeof (struct elf32_hppa_stub_hash_table)));
+ if (!stub_hash_table)
+ goto error_return;
+
+ if (!elf32_hppa_stub_hash_table_init (stub_hash_table, stub_bfd,
+ elf32_hppa_stub_hash_newfunc))
+ goto error_return;
+
+ /* Attach the hash tables to the main hash table. */
+ elf32_hppa_hash_table(link_info)->stub_hash_table = stub_hash_table;
+
+ /* Count the number of input BFDs. */
+ for (input_bfd = link_info->input_bfds;
+ input_bfd != NULL;
+ input_bfd = input_bfd->link_next)
+ bfd_count++;
+
+ /* Magic as we know the stub bfd only has one section. */
+ stub_sec = stub_bfd->sections;
+
+ /* If generating a relocateable output file, then we don't
+ have to examine the relocs. */
+ if (link_info->relocateable)
+ {
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ return true;
+ }
+
+ /* Now that we have argument location information for all the global
+ functions we can start looking for stubs. */
+ for (input_bfd = link_info->input_bfds, index = 0;
+ input_bfd != NULL;
+ input_bfd = input_bfd->link_next, index++)
+ {
+ /* We'll need the symbol table in a second. */
+ symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
+ if (symtab_hdr->sh_info == 0)
+ continue;
+
+ local_syms = all_local_syms[index];
+
+ /* Walk over each section attached to the input bfd. */
+ for (section = input_bfd->sections;
+ section != NULL;
+ section = section->next)
+ {
+ Elf_Internal_Shdr *input_rel_hdr;
+ Elf32_External_Rela *external_relocs, *erelaend, *erela;
+ Elf_Internal_Rela *internal_relocs, *irelaend, *irela;
+
+ /* If there aren't any relocs, then there's nothing to do. */
+ if ((section->flags & SEC_RELOC) == 0
+ || section->reloc_count == 0)
+ continue;
+
+ /* Allocate space for the external relocations. */
+ external_relocs
+ = ((Elf32_External_Rela *)
+ bfd_malloc (section->reloc_count
+ * sizeof (Elf32_External_Rela)));
+ if (external_relocs == NULL)
+ {
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+
+ /* Likewise for the internal relocations. */
+ internal_relocs
+ = ((Elf_Internal_Rela *)
+ bfd_malloc (section->reloc_count * sizeof (Elf_Internal_Rela)));
+ if (internal_relocs == NULL)
+ {
+ free (external_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+
+ /* Read in the external relocs. */
+ input_rel_hdr = &elf_section_data (section)->rel_hdr;
+ if (bfd_seek (input_bfd, input_rel_hdr->sh_offset, SEEK_SET) != 0
+ || bfd_read (external_relocs, 1, input_rel_hdr->sh_size,
+ input_bfd) != input_rel_hdr->sh_size)
+ {
+ free (external_relocs);
+ free (internal_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+
+ /* Swap in the relocs. */
+ erela = external_relocs;
+ erelaend = erela + section->reloc_count;
+ irela = internal_relocs;
+ for (; erela < erelaend; erela++, irela++)
+ bfd_elf32_swap_reloca_in (input_bfd, erela, irela);
+
+ /* We're done with the external relocs, free them. */
+ free (external_relocs);
+
+ /* Now examine each relocation. */
+ irela = internal_relocs;
+ irelaend = irela + section->reloc_count;
+ for (; irela < irelaend; irela++)
+ {
+ long r_type, size_of_stub;
+ unsigned long r_index;
+ struct elf_link_hash_entry *hash;
+ struct elf32_hppa_stub_hash_entry *stub_hash;
+ Elf_Internal_Sym *sym;
+ asection *sym_sec;
+ const char *sym_name;
+ symvalue sym_value;
+ bfd_vma location, destination;
+ char *new_name = NULL;
+
+ r_type = ELF32_R_TYPE (irela->r_info);
+ r_index = ELF32_R_SYM (irela->r_info);
+
+ if (r_type < 0 || r_type >= (int) R_PARISC_UNIMPLEMENTED)
+ {
+ bfd_set_error (bfd_error_bad_value);
+ free (internal_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+
+ /* Only look for stubs on call instructions or plabel
+ references. */
+ if (r_type != R_PARISC_PCREL17F
+ && r_type != R_PARISC_PLABEL32
+ && r_type != R_PARISC_PLABEL21L
+ && r_type != R_PARISC_PLABEL14R)
+ continue;
+
+ /* Now determine the call target, its name, value, section
+ and argument relocation bits. */
+ hash = NULL;
+ sym = NULL;
+ sym_sec = NULL;
+ if (r_index < symtab_hdr->sh_info)
+ {
+ /* It's a local symbol. */
+ Elf_Internal_Shdr *hdr;
+
+ sym = local_syms + r_index;
+ hdr = elf_elfsections (input_bfd)[sym->st_shndx];
+ sym_sec = hdr->bfd_section;
+ sym_name = bfd_elf_string_from_elf_section (input_bfd,
+ symtab_hdr->sh_link,
+ sym->st_name);
+ sym_value = (ELF_ST_TYPE (sym->st_info) == STT_SECTION
+ ? 0 : sym->st_value);
+ destination = (sym_value
+ + sym_sec->output_offset
+ + sym_sec->output_section->vma);
+
+ /* Tack on an ID so we can uniquely identify this local
+ symbol in the stub or arg info hash tables. */
+ new_name = bfd_malloc (strlen (sym_name) + 10);
+ if (new_name == 0)
+ {
+ free (internal_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+ sprintf (new_name, "%s_%08x", sym_name, (int)sym_sec);
+ sym_name = new_name;
+ }
+ else
+ {
+ /* It's an external symbol. */
+ long index;
+
+ index = r_index - symtab_hdr->sh_info;
+ hash = elf_sym_hashes (input_bfd)[index];
+ if (hash->root.type == bfd_link_hash_defined
+ || hash->root.type == bfd_link_hash_defweak)
+ {
+ sym_sec = hash->root.u.def.section;
+ sym_name = hash->root.root.string;
+ sym_value = hash->root.u.def.value;
+ destination = (sym_value
+ + sym_sec->output_offset
+ + sym_sec->output_section->vma);
+ }
+ else
+ {
+ bfd_set_error (bfd_error_bad_value);
+ free (internal_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+ }
+
+ /* Now determine where the call point is. */
+ location = (section->output_offset
+ + section->output_section->vma
+ + irela->r_offset);
+
+ /* We only care about the destination for PCREL function
+ calls (eg. we don't care for PLABELS). */
+ if (r_type != R_PARISC_PCREL17F)
+ location = destination;
+
+ /* Determine what (if any) linker stub is needed and its
+ size (in bytes). */
+ size_of_stub = elf32_hppa_size_of_stub (location,
+ destination,
+ sym_name);
+ if (size_of_stub != 0)
+ {
+ char *stub_name;
+ unsigned int len;
+
+ /* Get the name of this stub. */
+ len = strlen (sym_name);
+ len += 23;
+
+ stub_name = bfd_malloc (len);
+ if (!stub_name)
+ {
+ /* Because sym_name was mallocd above for local
+ symbols. */
+ if (r_index < symtab_hdr->sh_info)
+ free (new_name);
+
+ free (internal_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+ elf32_hppa_name_of_stub (location, destination, stub_name);
+ strcat (stub_name + 22, sym_name);
+
+ /* Because sym_name was malloced above for local symbols. */
+ if (r_index < symtab_hdr->sh_info)
+ free (new_name);
+
+ stub_hash
+ = elf32_hppa_stub_hash_lookup (stub_hash_table, stub_name,
+ false, false);
+ if (stub_hash != NULL)
+ {
+ /* The proper stub has already been created, nothing
+ else to do. */
+ free (stub_name);
+ }
+ else
+ {
+ bfd_set_section_size (stub_bfd, stub_sec,
+ (bfd_section_size (stub_bfd,
+ stub_sec)
+ + size_of_stub));
+
+ /* Enter this entry into the linker stub hash table. */
+ stub_hash
+ = elf32_hppa_stub_hash_lookup (stub_hash_table,
+ stub_name, true, true);
+ if (stub_hash == NULL)
+ {
+ free (stub_name);
+ free (internal_relocs);
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ goto error_return;
+ }
+
+ /* We'll need these to determine the address that the
+ stub will branch to. */
+ stub_hash->target_value = sym_value;
+ stub_hash->target_section = sym_sec;
+ }
+ free (stub_name);
+ }
+ }
+ /* We're done with the internal relocs, free them. */
+ free (internal_relocs);
+ }
+ }
+ /* We're done with the local symbols, free them. */
+ for (i = 0; i < bfd_count; i++)
+ if (all_local_syms[i])
+ free (all_local_syms[i]);
+ free (all_local_syms);
+ return true;
+
+error_return:
+ /* Return gracefully, avoiding dangling references to the hash tables. */
+ if (stub_hash_table)
+ {
+ elf32_hppa_hash_table(link_info)->stub_hash_table = NULL;
+ free (stub_hash_table);
+ }
+ /* Set the size of the stub section to zero since we're never going
+ to create them. Avoids losing when we try to get its contents
+ too. */
+ bfd_set_section_size (stub_bfd, stub_sec, 0);
+ return false;
+}
+
+/* Misc BFD support code. */
+#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup
+#define bfd_elf32_bfd_is_local_label_name hppa_elf_is_local_label_name
+#define elf_info_to_howto elf_hppa_info_to_howto
+#define elf_info_to_howto_rel elf_hppa_info_to_howto_rel
+
+/* Stuff for the BFD linker. */
+#define elf_backend_relocate_section elf32_hppa_relocate_section
+#define elf_backend_add_symbol_hook elf32_hppa_add_symbol_hook
+#define bfd_elf32_bfd_link_hash_table_create \
+ elf32_hppa_link_hash_table_create
+
+#define TARGET_BIG_SYM bfd_elf32_hppa_vec
+#define TARGET_BIG_NAME "elf32-hppa"
+#define ELF_ARCH bfd_arch_hppa
+#define ELF_MACHINE_CODE EM_PARISC
+#define ELF_MAXPAGESIZE 0x1000
+
+#include "elf32-target.h"
projects / deliverable / binutils-gdb.git / blobdiff