This file contains ELF32/HPPA relocation support as specified
in the Stratus FTX/Golf Object File Format (SED-1762) dated
- November 19, 1992.
+ February 1994.
- Copyright (C) 1990, 91, 92, 93, 94 Free Software Foundation, Inc.
+ Copyright (C) 1990-2020 Free Software Foundation, Inc.
Written by:
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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., 51 Franklin Street - Fifth Floor, Boston,
+ MA 02110-1301, USA. */
#ifndef _ELF32_HPPA_H
#define _ELF32_HPPA_H
-#include "libelf.h"
+#include "elf-bfd.h"
#include "libhppa.h"
#include "elf/hppa.h"
-/* ELF/HPPA relocation types */
-
-typedef enum
- {
- /* Address relocation types
- These relocation types do simple base + offset relocations. */
-
- R_PARISC_NONE = 0x00,
- R_PARISC_DIR32 = 0x01,
- R_PARISC_DIR21L = 0x02,
- R_PARISC_DIR17R = 0x03,
- R_PARISC_DIR17F = 0x04,
- R_PARISC_DIR14R = 0x06,
-
- /* PC-relative relocation types
- Typically used for calls.
- Note PCREL17C and PCREL17F differ only in overflow handling.
- PCREL17C never reports a relocation error.
-
- When supporting argument relocations, function calls must be
- accompanied by parameter relocation information. This information is
- carried in the ten high-order bits of the addend field. The remaining
- 22 bits of of the addend field are sign-extended to form the Addend.
-
- Note the code to build argument relocations depends on the
- addend being zero. A consequence of this limitation is GAS
- can not perform relocation reductions for function symbols. */
- R_PARISC_PCREL21L = 0x0a,
- R_PARISC_PCREL17R = 0x0b,
- R_PARISC_PCREL17F = 0x0c,
- R_PARISC_PCREL17C = 0x0d,
- R_PARISC_PCREL14R = 0x0e,
- R_PARISC_PCREL14F = 0x0f,
-
- /* DP-relative relocation types. */
- R_PARISC_DPREL21L = 0x12,
- R_PARISC_DPREL14R = 0x16,
- R_PARISC_DPREL14F = 0x17,
-
- /* Data linkage table (DLT) relocation types
-
- SOM DLT_REL fixup requests are used to for static data references
- from position-independent code within shared libraries. They are
- similar to the GOT relocation types in some SVR4 implementations. */
-
- R_PARISC_DLTREL21L = 0x1a,
- R_PARISC_DLTREL14R = 0x1e,
- R_PARISC_DLTREL14F = 0x1f,
-
- /* DLT indirect relocation types */
- R_PARISC_DLTIND21L = 0x22,
- R_PARISC_DLTIND14R = 0x26,
- R_PARISC_DLTIND14F = 0x27,
-
- /* Base relative relocation types. Ugh. These imply lots of state */
- R_PARISC_SETBASE = 0x28,
- R_PARISC_BASEREL32 = 0x29,
- R_PARISC_BASEREL21L = 0x2a,
- R_PARISC_BASEREL17R = 0x2b,
- R_PARISC_BASEREL17F = 0x2c,
- R_PARISC_BASEREL14R = 0x2e,
- R_PARISC_BASEREL14F = 0x2f,
-
- /* Segment relative relocation types. */
- R_PARISC_TEXTREL32 = 0x31,
- R_PARISC_DATAREL32 = 0x39,
-
- /* Plabel relocation types. */
- R_PARISC_PLABEL32 = 0x41,
- R_PARISC_PLABEL21L = 0x42,
- R_PARISC_PLABEL14R = 0x46,
-
- /* PLT relocations. */
- R_PARISC_PLTIND21L = 0x82,
- R_PARISC_PLTIND14R = 0x86,
- R_PARISC_PLTIND14F = 0x87,
-
- /* Misc relocation types. */
- R_PARISC_COPY = 0x88,
- R_PARISC_GLOB_DAT = 0x89,
- R_PARISC_JMP_SLOT = 0x8a,
- R_PARISC_RELATIVE = 0x8b,
- R_PARISC_STUB_CALL_17 = 0x8c,
- R_PARISC_UNIMPLEMENTED,
- }
-elf32_hppa_reloc_type;
-
-#define ELF_HOWTO_TABLE_SIZE R_PARISC_UNIMPLEMENTED + 1
-#define N_PARISC_RELOCS R_PARISC_UNIMPLEMENTED + 1
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void elf32_hppa_init_stub_bfd
+ (bfd *, struct bfd_link_info *);
+
+int elf32_hppa_setup_section_lists
+ (bfd *, struct bfd_link_info *);
+
+void elf32_hppa_next_input_section
+ (struct bfd_link_info *, asection *);
+
+bfd_boolean elf32_hppa_size_stubs
+ (bfd *, bfd *, struct bfd_link_info *, bfd_boolean, bfd_signed_vma,
+ asection * (*) (const char *, asection *), void (*) (void));
+
+bfd_boolean elf32_hppa_set_gp
+ (bfd *, struct bfd_link_info *);
+
+bfd_boolean elf32_hppa_build_stubs
+ (struct bfd_link_info *);
+
+elf_hppa_reloc_type elf32_hppa_reloc_final_type
+ (bfd *, elf_hppa_reloc_type, int, unsigned int);
+
+extern elf_hppa_reloc_type ** _bfd_elf32_hppa_gen_reloc_type
+ (bfd *, elf_hppa_reloc_type, int, unsigned int, int, asymbol *);
/* Define groups of basic relocations. FIXME: These should
be the only basic relocations created by GAS. The rest
- should be internal to the BFD backend.
+ should be internal to the BFD backend.
The idea is both SOM and ELF define these basic relocation
- types so they map into a SOM or ELF specific relocation
+ types so they map into a SOM or ELF specific relocation
as appropriate. This allows GAS to share much more code
between the two target object formats. */
#define R_HPPA_NONE R_PARISC_NONE
-#define R_HPPA R_PARISC_DIR32
-#define R_HPPA_GOTOFF R_PARISC_DPREL21L
-#define R_HPPA_PCREL_CALL R_PARISC_PCREL21L
-
-/* HPPA symbol table extension entry types */
-enum elf32_hppa_symextn_types
-{
- PARISC_SXT_NULL,
- PARISC_SXT_SYMNDX,
- PARISC_SXT_ARG_RELOC,
-};
-
-/* These macros compose and decompose the value of a symextn entry:
-
- entry_type = ELF32_PARISC_SX_TYPE(word);
- entry_value = ELF32_PARISC_SX_VAL(word);
- word = ELF32_PARISC_SX_WORD(type,val); */
-
-#define ELF32_PARISC_SX_TYPE(p) ((p) >> 24)
-#define ELF32_PARISC_SX_VAL(p) ((p) & 0xFFFFFF)
-#define ELF32_PARISC_SX_WORD(type,val) (((type) << 24) + (val & 0xFFFFFF))
-
-/* The following was added facilitate implementation of the .hppa_symextn
- section. This section is built after the symbol table is built in the
- elf_write_object_contents routine (called from bfd_close). It is built
- so late because it requires information that is not known until
- the symbol and string table sections have been allocated, and
- the symbol table has been built. */
-
-/* Number of "hand-made" target specific sections. */
-#define ELF_TC_FAKE_SECTIONS 1
-#define SYMEXTN_SECTION_NAME ".PARISC.symext"
-
-/* FIXME. Are these external? (For example used by GAS?). If so the
- names need to change to avoid namespace pollution, if not they should
- be moved into elf32-hppa.c. */
-typedef unsigned long symext_entryS;
-struct symext_chain
- {
- symext_entryS entry;
- struct symext_chain *next;
- };
-
-typedef struct symext_chain symext_chainS;
-
-elf32_hppa_reloc_type **hppa_elf_gen_reloc_type
- PARAMS ((bfd *, elf32_hppa_reloc_type, int, int));
-
-asymbol * hppa_look_for_stubs_in_section
- PARAMS ((bfd *, bfd *, bfd *, asection *,
- int *, struct bfd_link_info *));
-
-void elf_hppa_final_processing PARAMS ((void));
+#define R_HPPA R_PARISC_DIR32
+#define R_HPPA_GOTOFF R_PARISC_DPREL21L
+#define R_HPPA_PCREL_CALL R_PARISC_PCREL21L
+#define R_HPPA_ABS_CALL R_PARISC_DIR17F
+#define R_HPPA_COMPLEX R_PARISC_UNIMPLEMENTED
+
+#ifdef __cplusplus
+}
+#endif
+
#endif /* _ELF32_HPPA_H */
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