diff options
| author | Jeff Law <law@redhat.com> | 1994-02-26 04:58:57 +0000 |
|---|---|---|
| committer | Jeff Law <law@redhat.com> | 1994-02-26 04:58:57 +0000 |
| commit | f5bfdacd4739f94313ebef51ebbe7c88fb9f58f6 (patch) | |
| tree | ac58309f5c0338a6781b070f025c6d55a09bbe3d | |
| parent | e03095c9bb70a8fa0fcf9e9e74cfd381e2f8ae73 (diff) | |
| download | gdb-f5bfdacd4739f94313ebef51ebbe7c88fb9f58f6.zip gdb-f5bfdacd4739f94313ebef51ebbe7c88fb9f58f6.tar.gz gdb-f5bfdacd4739f94313ebef51ebbe7c88fb9f58f6.tar.bz2 | |
* libhppa.h (hppa_rebuild_insn): Moved here from elf32-hppa.c.
* elf32-hppa.h (elf_hppa_tc_symbol): Add new arguments.
(elf_hppa_tc_make_sections): Likewise.
(elf_hppa_final_processing): Add extern decl.
* elf32-hppa.c: First half of major cleanup. Add/cleanup lots of
comments. PARAMize some static functions. Delete unused functions.
Delete unused/unnecessary arguments to many functions. Group
static vars together. Collapse common case statements together
in many places. Use default case when possible instead of listing
each case separately. Abort for bad errors until we get error
code propogation working. Work on spacing and indention problems.
Add FIXMEs for some unresolved problems. Delete hopelessly broken
COMPLEX relocation support (it's never used anyway).
(hppa_elf_rebuild_insn): Delete. Moved into libhppa.h.
(elf_hppa_tc_symbol): Accept and use new arguments (symext chains).
(elf_hppa_tc_make_sections): Likewise.
| -rw-r--r-- | bfd/ChangeLog | 19 | ||||
| -rw-r--r-- | bfd/elf32-hppa.c | 940 | ||||
| -rw-r--r-- | bfd/elf32-hppa.h | 670 |
3 files changed, 618 insertions, 1011 deletions
diff --git a/bfd/ChangeLog b/bfd/ChangeLog index e066b0b..d1c589b 100644 --- a/bfd/ChangeLog +++ b/bfd/ChangeLog @@ -1,5 +1,24 @@ Fri Feb 25 16:35:57 1994 Jeffrey A. Law (law@snake.cs.utah.edu) + * libhppa.h (hppa_rebuild_insn): Moved here from elf32-hppa.c. + + * elf32-hppa.h (elf_hppa_tc_symbol): Add new arguments. + (elf_hppa_tc_make_sections): Likewise. + (elf_hppa_final_processing): Add extern decl. + + * elf32-hppa.c: First half of major cleanup. Add/cleanup lots of + comments. PARAMize some static functions. Delete unused functions. + Delete unused/unnecessary arguments to many functions. Group + static vars together. Collapse common case statements together + in many places. Use default case when possible instead of listing + each case separately. Abort for bad errors until we get error + code propogation working. Work on spacing and indention problems. + Add FIXMEs for some unresolved problems. Delete hopelessly broken + COMPLEX relocation support (it's never used anyway). + (hppa_elf_rebuild_insn): Delete. Moved into libhppa.h. + (elf_hppa_tc_symbol): Accept and use new arguments (symext chains). + (elf_hppa_tc_make_sections): Likewise. + * format.c (bfd_check_format_matches): Initialize matching_vector to keep gcc -Wall quiet. diff --git a/bfd/elf32-hppa.c b/bfd/elf32-hppa.c index cb5c9e5..d4e94bd 100644 --- a/bfd/elf32-hppa.c +++ b/bfd/elf32-hppa.c @@ -30,28 +30,42 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ #include "bfdlink.h" #include "libelf.h" +/* Note there isn't much error handling code in here yet. Unexpected + conditions are handled by just calling abort. FIXME damnit! */ + /* 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. -*/ + November 19, 1992. */ #include "elf32-hppa.h" #include "libhppa.h" #include "aout/aout64.h" #include "hppa_stubs.h" -/* ELF/PA relocation howto entries */ +/* ELF/PA relocation howto entries. */ static bfd_reloc_status_type hppa_elf_reloc PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); +static unsigned long hppa_elf_relocate_insn + PARAMS ((bfd *, asection *, unsigned long, unsigned long, long, + long, unsigned long, unsigned long, unsigned long)); + +static void hppa_elf_relocate_unwind_table + PARAMS ((bfd *, PTR, unsigned long, long, long, + unsigned long, unsigned long)); + +static long get_symbol_value PARAMS ((asymbol *)); +static bfd_reloc_status_type hppa_elf_reloc + PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd*, char **)); + +static CONST reloc_howto_type * elf_hppa_reloc_type_lookup + PARAMS ((bfd_arch_info_type *, bfd_reloc_code_real_type)); + static 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, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_NONE"}, {R_HPPA_32, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_32"}, {R_HPPA_11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_11"}, @@ -72,7 +86,6 @@ static reloc_howto_type elf_hppa_howto_table[ELF_HOWTO_TABLE_SIZE] = {R_HPPA_LR21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_LR21"}, {R_HPPA_RR14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_RR14"}, {R_HPPA_RR17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_RR17"}, -/* 9.3.5. GOTOFF address relocation types */ {R_HPPA_GOTOFF_11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_11"}, {R_HPPA_GOTOFF_14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_14"}, {R_HPPA_GOTOFF_L21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_L21"}, @@ -86,7 +99,6 @@ static reloc_howto_type elf_hppa_howto_table[ELF_HOWTO_TABLE_SIZE] = {R_HPPA_GOTOFF_RD14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_RD14"}, {R_HPPA_GOTOFF_LR21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_LR21"}, {R_HPPA_GOTOFF_RR14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_GOTOFF_RR14"}, -/* 9.3.6. Absolute call relocation types */ {R_HPPA_ABS_CALL_11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_11"}, {R_HPPA_ABS_CALL_14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_14"}, {R_HPPA_ABS_CALL_17, 0, 3, 17, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_17"}, @@ -105,7 +117,6 @@ static reloc_howto_type elf_hppa_howto_table[ELF_HOWTO_TABLE_SIZE] = {R_HPPA_ABS_CALL_LR21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_LR21"}, {R_HPPA_ABS_CALL_RR14, 0, 3, 14, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_ABS_CALL_RR14"}, {R_HPPA_ABS_CALL_RR17, 0, 3, 17, false, 0, complain_overflow_bitfield, 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, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_11"}, {R_HPPA_PCREL_CALL_14, 0, 3, 14, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_14"}, {R_HPPA_PCREL_CALL_17, 0, 3, 17, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_17"}, @@ -125,28 +136,20 @@ static reloc_howto_type elf_hppa_howto_table[ELF_HOWTO_TABLE_SIZE] = {R_HPPA_PCREL_CALL_LR21, 0, 3, 21, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_LR21"}, {R_HPPA_PCREL_CALL_RR14, 0, 3, 14, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RR14"}, {R_HPPA_PCREL_CALL_RR17, 0, 3, 17, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PCREL_CALL_RR17"}, - -/* 9.3.8. Plabel relocation types */ {R_HPPA_PLABEL_32, 0, 3, 32, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PLABEL_32"}, {R_HPPA_PLABEL_11, 0, 3, 11, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PLABEL_11"}, {R_HPPA_PLABEL_14, 0, 3, 14, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PLABEL_14"}, {R_HPPA_PLABEL_L21, 0, 3, 21, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PLABEL_L21"}, {R_HPPA_PLABEL_R11, 0, 3, 11, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PLABEL_R11"}, {R_HPPA_PLABEL_R14, 0, 3, 14, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_PLABEL_R14"}, - -/* 9.3.9. Data linkage table (DLT) relocation types */ {R_HPPA_DLT_32, 0, 3, 32, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_DLT_32"}, {R_HPPA_DLT_11, 0, 3, 11, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_DLT_11"}, {R_HPPA_DLT_14, 0, 3, 14, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_DLT_14"}, {R_HPPA_DLT_L21, 0, 3, 21, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_DLT_L21"}, {R_HPPA_DLT_R11, 0, 3, 11, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_DLT_R11"}, {R_HPPA_DLT_R14, 0, 3, 14, false, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_DLT_R14"}, - -/* 9.3.10. Relocations for unwinder tables */ {R_HPPA_UNWIND_ENTRY, 0, 3, 32, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_UNWIND_ENTRY"}, {R_HPPA_UNWIND_ENTRIES, 0, 3, 32, true, 0, complain_overflow_signed, hppa_elf_reloc, "R_HPPA_UNWIND_ENTRIES"}, - -/* 9.3.11. Relocation types for complex expressions */ {R_HPPA_PUSH_CONST, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_PUSH_CONST"}, {R_HPPA_PUSH_PC, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_PUSH_PC"}, {R_HPPA_PUSH_SYM, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_PUSH_SYM"}, @@ -177,7 +180,6 @@ static reloc_howto_type elf_hppa_howto_table[ELF_HOWTO_TABLE_SIZE] = {R_HPPA_EXPR_RD, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_RD"}, {R_HPPA_EXPR_LR, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_LR"}, {R_HPPA_EXPR_RR, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_RR"}, - {R_HPPA_EXPR_32, 0, 3, 32, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_32"}, {R_HPPA_EXPR_21, 0, 3, 21, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_21"}, {R_HPPA_EXPR_11, 0, 3, 11, false, 0, complain_overflow_bitfield, hppa_elf_reloc, "R_HPPA_EXPR_11"}, @@ -191,89 +193,30 @@ static reloc_howto_type elf_hppa_howto_table[ELF_HOWTO_TABLE_SIZE] = static symext_chainS *symext_rootP; static symext_chainS *symext_lastP; static boolean symext_chain_built; +static long global_value; +static long GOT_value; +static asymbol *global_symbol; +static int global_sym_defined; -static unsigned long -hppa_elf_rebuild_insn (abfd, insn, value, r_type, r_field, r_format) - bfd *abfd; - unsigned long insn; - unsigned long value; - unsigned short r_type; - unsigned short r_field; - unsigned short r_format; -{ - unsigned long const_part; /* part of the instruction that does not change */ - unsigned long rebuilt_part; - - switch (r_format) - { - case 11: - { - unsigned w1, w; - - const_part = insn & 0xffffe002; - dis_assemble_12 (value, &w1, &w); - rebuilt_part = (w1 << 2) | w; - return const_part | rebuilt_part; - } - - case 12: - { - unsigned w1, w; - - const_part = insn & 0xffffe002; - dis_assemble_12 (value, &w1, &w); - rebuilt_part = (w1 << 2) | w; - return const_part | rebuilt_part; - } - - case 14: - const_part = insn & 0xffffc000; - low_sign_unext (value, 14, &rebuilt_part); - return const_part | rebuilt_part; - - case 17: - { - unsigned w1, w2, w; - - const_part = insn & 0xffe0e002; - dis_assemble_17 (value, &w1, &w2, &w); - rebuilt_part = (w2 << 2) | (w1 << 16) | w; - return const_part | rebuilt_part; - } - - case 21: - const_part = insn & 0xffe00000; - dis_assemble_21 (value, &rebuilt_part); - return const_part | rebuilt_part; +static symext_entryS *symextn_contents; +static unsigned int symextn_contents_real_size; - case 32: - const_part = 0; - return value; +/* Relocate the given INSN given the various input parameters. - 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; -} + FIXME: endianness and sizeof (long) issues abound here. */ static unsigned long -hppa_elf_relocate_insn (abfd, input_sect, - insn, address, symp, sym_value, r_addend, - r_type, r_format, r_field, pcrel) +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; - asymbol *symp; long sym_value; long r_addend; - unsigned short r_type; - unsigned short r_format; - unsigned short r_field; - unsigned char pcrel; + unsigned long r_format; + unsigned long r_field; + unsigned long pcrel; { unsigned char opcode = get_opcode (insn); long constant_value; @@ -290,44 +233,30 @@ hppa_elf_relocate_insn (abfd, input_sect, 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); - 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_field, r_format); - - case COMICLR: - case SUBI: /* case SUBIO: */ - case ADDIT: /* case ADDITO: */ - case ADDI: /* case ADDIO: */ - BFD_ASSERT (r_format == 11); - - constant_value = HPPA_R_CONSTANT(r_addend); - 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 = HPPA_R_CONSTANT (r_addend); 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); + return hppa_rebuild_insn (abfd, insn, sym_value, r_format); case BL: case BE: case BLE: arg_reloc = 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); - /* @@ Assumes only 32 bits. */ + constant_value = (constant_value << 15) >> 15; if (pcrel) { @@ -339,53 +268,47 @@ hppa_elf_relocate_insn (abfd, input_sect, else sym_value = hppa_field_adjust (sym_value, constant_value, r_field); - return hppa_elf_rebuild_insn (abfd, insn, sym_value >> 2, r_type, r_field, r_format); + return hppa_rebuild_insn (abfd, insn, sym_value >> 2, r_format); default: if (opcode == 0) { - BFD_ASSERT (r_format == 32); constant_value = HPPA_R_CONSTANT (r_addend); + if (pcrel) + sym_value -= address; + return hppa_field_adjust (sym_value, constant_value, r_field); } else - { - fprintf (stderr, - "Unrecognized opcode 0x%02x (fmt=%x,field=%x)\n", - opcode, r_format, r_field); - return insn; - } + abort (); } } +/* Relocate a single unwind entry, or an entire table of them. */ + static void -hppa_elf_relocate_unwind_table (abfd, input_sect, - data, address, symp, sym_value, r_addend, - r_type, r_format, r_field, pcrel) +hppa_elf_relocate_unwind_table (abfd, data, address, sym_value, + r_addend, r_type, r_field) bfd *abfd; - asection *input_sect; PTR data; unsigned long address; - asymbol *symp; long sym_value; long r_addend; - unsigned short r_type; - unsigned short r_format; - unsigned short r_field; - unsigned char pcrel; + unsigned long r_type; + unsigned long r_field; { - bfd_byte *hit_data = address + (bfd_byte *) (data); + bfd_byte *hit_data = address + (bfd_byte *) data; 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: + /* Need to relocate the first two 32bit fields in the unwind. They + correspond to a function's start and end address. */ 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); @@ -397,79 +320,53 @@ hppa_elf_relocate_unwind_table (abfd, input_sect, break; case R_HPPA_UNWIND_ENTRIES: + /* Relocate a mass of unwind entires. The count is passed in r_addend + (who's braindamaged idea was this anyway? */ for (i = 0; i < r_addend; i++, hit_data += 3 * sizeof (unsigned long)) { unsigned int adjustment; + /* Adjust the first 32bit field in the unwind entry. It's + the starting offset of a function. */ 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); adjustment = sym_value - start_offset; + /* Now adjust the second 32bit field, it's the ending offset + of a function. */ hit_data += sizeof (unsigned long); end_offset = adjustment + bfd_get_32 (abfd, hit_data); bfd_put_32 (abfd, end_offset, 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 = start_offset + adjustment; - } + /* Prepare for the next iteration. */ + start_offset = bfd_get_32 (abfd, + hit_data + 3 * sizeof (unsigned long)); + sym_value = start_offset + adjustment; } break; default: - fprintf (stderr, - "Unrecognized relocation type 0x%02x (fmt=%x,field=%x)\n", - r_type, r_format, r_field); + abort (); } } -/* Provided the symbol, returns the value reffed */ +/* Return the relocated value of the given symbol. */ + 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; - } + if (symbol == NULL + || symbol->section == &bfd_com_section) + return 0; else - { - relocation = symbol->value + - symbol->section->output_section->vma + - symbol->section->output_offset; - } - - return (relocation); + return symbol->value + symbol->section->output_section->vma + + symbol->section->output_offset; } -/* 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). */ +/* Return one (or more) BFD relocations which implement the base + relocation with modifications based on format and field. -/* NOTE: XXX the T, TR, TL, P, PR, and PL expression prefixes are not */ -/* handled yet. */ - -static void -hppa_elf_gen_reloc_error (base_type, fmt, field) - elf32_hppa_reloc_type base_type; - int fmt; - int field; -{ - fprintf (stderr, "undefined relocation: base=0x%x,fmt=0x%x,field=0x%x\n", - base_type, fmt, field); -} + FIXME: Needs a decl in elf32-hppa.h. */ elf32_hppa_reloc_type ** hppa_elf_gen_reloc_type (abfd, base_type, format, field) @@ -478,18 +375,20 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) int format; int field; { -#define UNDEFINED hppa_elf_gen_reloc_error(base_type,format,field) - elf32_hppa_reloc_type *finaltype; elf32_hppa_reloc_type **final_types; - int i; - final_types = (elf32_hppa_reloc_type **) bfd_alloc_by_size_t (abfd, sizeof (elf32_hppa_reloc_type *) * 2); + /* Allocate slots for the BFD relocation. */ + final_types = (elf32_hppa_reloc_type **) + bfd_alloc_by_size_t (abfd, sizeof (elf32_hppa_reloc_type *) * 2); BFD_ASSERT (final_types != 0); /* FIXME */ - finaltype = (elf32_hppa_reloc_type *) bfd_alloc_by_size_t (abfd, sizeof (elf32_hppa_reloc_type)); + /* Allocate space for the relocation itself. */ + finaltype = (elf32_hppa_reloc_type *) + bfd_alloc_by_size_t (abfd, sizeof (elf32_hppa_reloc_type)); BFD_ASSERT (finaltype != 0); /* FIXME */ + /* Some reasonable defaults. */ final_types[0] = finaltype; final_types[1] = NULL; @@ -497,6 +396,9 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) final_type = base_type; + /* Just a tangle of nested switch statements to deal with the braindamage + that a different field selector means a completely different relocation + for PA ELF. */ switch (base_type) { case R_HPPA: @@ -517,7 +419,6 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) case e_rdsel: final_type = R_HPPA_RD11; break; - case e_psel: final_type = R_HPPA_PLABEL_11; break; @@ -530,22 +431,12 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) case e_rtsel: final_type = R_HPPA_DLT_R11; break; - - case e_lpsel: - case e_ltsel: - case e_lsel: - case e_lrsel: - case e_lssel: - case e_rrsel: default: - UNDEFINED; - final_type = base_type; + abort (); break; } break; - case 12: - UNDEFINED; - break; + case 14: switch (field) { @@ -561,7 +452,6 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) case e_rrsel: final_type = R_HPPA_RR14; break; - case e_psel: final_type = R_HPPA_PLABEL_14; break; @@ -574,21 +464,12 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) case e_rtsel: final_type = R_HPPA_DLT_R14; break; - - case e_lpsel: - case e_ltsel: - - case e_fsel: - case e_lsel: - case e_lssel: - case e_ldsel: - case e_lrsel: default: - UNDEFINED; - final_type = base_type; + abort (); break; } break; + case 17: switch (field) { @@ -607,16 +488,12 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) case e_rrsel: final_type = R_HPPA_RR17; break; - case e_lsel: - case e_lssel: - case e_ldsel: - case e_lrsel: default: - UNDEFINED; - final_type = base_type; + abort (); break; } break; + case 21: switch (field) { @@ -638,17 +515,12 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) case e_ltsel: 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; + abort (); break; } break; + case 32: switch (field) { @@ -662,17 +534,18 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) final_type = R_HPPA_DLT_32; break; default: - UNDEFINED; - final_type = base_type; + abort (); break; } break; + default: - UNDEFINED; - final_type = base_type; + abort (); break; } break; + + case R_HPPA_GOTOFF: switch (format) { @@ -691,20 +564,12 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) 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; + abort (); break; } break; - case 12: - UNDEFINED; - final_type = base_type; - break; + case 14: switch (field) { @@ -723,20 +588,12 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) 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; + abort (); break; } break; - case 17: - UNDEFINED; - final_type = base_type; - break; + case 21: switch (field) { @@ -752,27 +609,19 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) 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; + abort (); break; } break; - case 32: - UNDEFINED; - final_type = base_type; - break; + default: - UNDEFINED; - final_type = base_type; + abort (); break; } break; + + case R_HPPA_PCREL_CALL: switch (format) { @@ -791,20 +640,12 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) 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; + abort (); break; } break; - case 12: - UNDEFINED; - final_type = base_type; - break; + case 14: switch (field) { @@ -823,16 +664,12 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) 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; + abort (); break; } break; + case 17: switch (field) { @@ -851,16 +688,12 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) 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; + abort (); break; } break; + case 21: switch (field) { @@ -876,27 +709,19 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) 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; + abort (); break; } break; - case 32: - UNDEFINED; - final_type = base_type; - break; + default: - UNDEFINED; - final_type = base_type; + abort (); break; } break; + + case R_HPPA_PLABEL: switch (format) { @@ -910,11 +735,11 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) final_type = R_HPPA_PLABEL_R11; break; default: - UNDEFINED; - final_type = base_type; + abort (); break; } break; + case 14: switch (field) { @@ -925,11 +750,11 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) final_type = R_HPPA_PLABEL_R14; break; default: - UNDEFINED; - final_type = base_type; + abort (); break; } break; + case 21: switch (field) { @@ -937,11 +762,11 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) final_type = R_HPPA_PLABEL_L21; break; default: - UNDEFINED; - final_type = base_type; + abort (); break; } break; + case 32: switch (field) { @@ -949,16 +774,17 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) final_type = R_HPPA_PLABEL_32; break; default: - UNDEFINED; - final_type = base_type; + abort (); break; } break; + default: - UNDEFINED; - final_type = base_type; + abort (); break; } + + case R_HPPA_ABS_CALL: switch (format) { @@ -977,20 +803,12 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) 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; + abort (); break; } break; - case 12: - UNDEFINED; - final_type = base_type; - break; + case 14: switch (field) { @@ -1009,16 +827,12 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) 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; + abort (); break; } break; + case 17: switch (field) { @@ -1037,16 +851,12 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) 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; + abort (); break; } break; + case 21: switch (field) { @@ -1062,110 +872,33 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) 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; + abort (); break; } break; - case 32: - UNDEFINED; - final_type = base_type; - break; + default: - UNDEFINED; - final_type = base_type; + abort (); break; } break; + + case R_HPPA_UNWIND: final_type = R_HPPA_UNWIND_ENTRY; break; + + case R_HPPA_COMPLEX: case R_HPPA_COMPLEX_PCREL_CALL: case R_HPPA_COMPLEX_ABS_CALL: - final_types = (elf32_hppa_reloc_type **) bfd_alloc_by_size_t (abfd, sizeof (elf32_hppa_reloc_type *) * 6); - BFD_ASSERT (final_types != 0); /* FIXME */ - - finaltype = (elf32_hppa_reloc_type *) bfd_alloc_by_size_t (abfd, sizeof (elf32_hppa_reloc_type) * 5); - BFD_ASSERT (finaltype != 0); /* FIXME */ - - for (i = 0; i < 5; i++) - final_types[i] = &finaltype[i]; - - final_types[5] = NULL; - - finaltype[0] = R_HPPA_PUSH_SYM; - - if (base_type == R_HPPA_COMPLEX) - finaltype[1] = R_HPPA_PUSH_SYM; - else if (base_type == R_HPPA_COMPLEX_PCREL_CALL) - finaltype[1] = R_HPPA_PUSH_PCREL_CALL; - else /* base_type == R_HPPA_COMPLEX_ABS_CALL */ - finaltype[1] = R_HPPA_PUSH_ABS_CALL; - - finaltype[2] = R_HPPA_SUB; - - switch (field) - { - case e_fsel: - finaltype[3] = R_HPPA_EXPR_F; - break; - case e_lsel: - finaltype[3] = R_HPPA_EXPR_L; - break; - case e_rsel: - finaltype[3] = R_HPPA_EXPR_R; - break; - case e_lssel: - finaltype[3] = R_HPPA_EXPR_LS; - break; - case e_rssel: - finaltype[3] = R_HPPA_EXPR_RS; - break; - case e_ldsel: - finaltype[3] = R_HPPA_EXPR_LD; - break; - case e_rdsel: - finaltype[3] = R_HPPA_EXPR_RD; - break; - case e_lrsel: - finaltype[3] = R_HPPA_EXPR_LR; - break; - case e_rrsel: - finaltype[3] = R_HPPA_EXPR_RR; - break; - } - - switch (format) - { - case 11: - finaltype[4] = R_HPPA_EXPR_11; - break; - case 12: - finaltype[4] = R_HPPA_EXPR_12; - break; - case 14: - finaltype[4] = R_HPPA_EXPR_14; - break; - case 17: - finaltype[4] = R_HPPA_EXPR_17; - break; - case 21: - finaltype[4] = R_HPPA_EXPR_21; - break; - case 32: - finaltype[4] = R_HPPA_EXPR_32; - break; - } - + /* The code originally here was horribly broken, and apparently + never used. Zap it. When we need complex relocations rewrite + it correctly! */ + abort (); break; - + default: final_type = base_type; break; @@ -1177,11 +910,7 @@ hppa_elf_gen_reloc_type (abfd, base_type, format, field) #undef final_type -/* this function is in charge of performing all the HP PA relocations */ -static long global_value; -static long GOT_value; /* XXX: need to calculate this! For HPUX, GOT == DP */ -static asymbol *global_symbol; -static int global_sym_defined; +/* Actually perform a relocation. */ static bfd_reloc_status_type hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, @@ -1197,16 +926,16 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, unsigned long insn; long sym_value = 0; unsigned long addr = reloc_entry->address; - bfd_byte *hit_data = addr + (bfd_byte *) (data); - unsigned short r_type = reloc_entry->howto->type & 0xFF; - unsigned short r_field = e_fsel; + bfd_byte *hit_data = addr + (bfd_byte *) data; + unsigned long r_type = reloc_entry->howto->type; + unsigned long r_field = e_fsel; boolean r_pcrel = reloc_entry->howto->pc_relative; unsigned r_format = reloc_entry->howto->bitsize; long r_addend = reloc_entry->addend; + /* If only performing a partial link, get out early. */ if (output_bfd) { - /* Partial linking - do nothing */ reloc_entry->address += input_section->output_offset; return bfd_reloc_ok; } @@ -1216,9 +945,16 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, if (symbol_in && symbol_in->section == &bfd_und_section) return bfd_reloc_undefined; + /* Get the final relocated value. */ sym_value = get_symbol_value (symbol_in); - /* Compute the value of $global$. */ + /* Compute the value of $global$. + FIXME: None of this should be necessary. $global$ is just a + marker and shouldn't really figure into these computations. + + Once that's fixed we'll need to teach this backend to change + DP-relative relocations involving symbols in the text section + to be simple absolute relocations. */ if (!global_sym_defined) { if (global_symbol) @@ -1251,14 +987,8 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, /* Handle all the basic type 1 relocations. */ case R_HPPA_32: - r_field = e_fsel; - goto do_basic_type_1; case R_HPPA_11: - r_field = e_fsel; - goto do_basic_type_1; case R_HPPA_14: - r_field = e_fsel; - goto do_basic_type_1; case R_HPPA_17: r_field = e_fsel; goto do_basic_type_1; @@ -1266,11 +996,7 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_field = e_lsel; goto do_basic_type_1; case R_HPPA_R11: - r_field = e_rsel; - goto do_basic_type_1; case R_HPPA_R14: - r_field = e_rsel; - goto do_basic_type_1; case R_HPPA_R17: r_field = e_rsel; goto do_basic_type_1; @@ -1278,11 +1004,7 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_field = e_lssel; goto do_basic_type_1; case R_HPPA_RS11: - r_field = e_rssel; - goto do_basic_type_1; case R_HPPA_RS14: - r_field = e_rssel; - goto do_basic_type_1; case R_HPPA_RS17: r_field = e_ldsel; goto do_basic_type_1; @@ -1290,11 +1012,7 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_field = e_ldsel; goto do_basic_type_1; case R_HPPA_RD11: - r_field = e_rdsel; - goto do_basic_type_1; case R_HPPA_RD14: - r_field = e_rdsel; - goto do_basic_type_1; case R_HPPA_RD17: r_field = e_rdsel; goto do_basic_type_1; @@ -1302,21 +1020,17 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_field = e_lrsel; goto do_basic_type_1; case R_HPPA_RR14: - r_field = e_rrsel; - goto do_basic_type_1; case R_HPPA_RR17: 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); + sym_value, r_addend, r_format, + r_field, r_pcrel); break; /* Handle all the basic type 2 relocations. */ case R_HPPA_GOTOFF_11: - r_field = e_fsel; - goto do_basic_type_2; case R_HPPA_GOTOFF_14: r_field = e_fsel; goto do_basic_type_2; @@ -1324,8 +1038,6 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_field = e_lsel; goto do_basic_type_2; case R_HPPA_GOTOFF_R11: - r_field = e_rsel; - goto do_basic_type_2; case R_HPPA_GOTOFF_R14: r_field = e_rsel; goto do_basic_type_2; @@ -1333,8 +1045,6 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_field = e_lssel; goto do_basic_type_2; case R_HPPA_GOTOFF_RS11: - r_field = e_rssel; - goto do_basic_type_2; case R_HPPA_GOTOFF_RS14: r_field = e_rssel; goto do_basic_type_2; @@ -1342,8 +1052,6 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_field = e_ldsel; goto do_basic_type_2; case R_HPPA_GOTOFF_RD11: - r_field = e_rdsel; - goto do_basic_type_2; case R_HPPA_GOTOFF_RD14: r_field = e_rdsel; goto do_basic_type_2; @@ -1356,17 +1064,13 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, 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); + sym_value, r_addend, r_format, + r_field, r_pcrel); break; /* Handle all the basic type 3 relocations. */ case R_HPPA_ABS_CALL_11: - r_field = e_fsel; - goto do_basic_type_3; case R_HPPA_ABS_CALL_14: - r_field = e_fsel; - goto do_basic_type_3; case R_HPPA_ABS_CALL_17: r_field = e_fsel; goto do_basic_type_3; @@ -1374,11 +1078,7 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_field = e_lsel; goto do_basic_type_3; case R_HPPA_ABS_CALL_R11: - r_field = e_rsel; - goto do_basic_type_3; case R_HPPA_ABS_CALL_R14: - r_field = e_rsel; - goto do_basic_type_3; case R_HPPA_ABS_CALL_R17: r_field = e_rsel; goto do_basic_type_3; @@ -1386,11 +1086,7 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_field = e_lssel; goto do_basic_type_3; case R_HPPA_ABS_CALL_RS11: - r_field = e_lssel; - goto do_basic_type_3; case R_HPPA_ABS_CALL_RS14: - r_field = e_rssel; - goto do_basic_type_3; case R_HPPA_ABS_CALL_RS17: r_field = e_rssel; goto do_basic_type_3; @@ -1398,11 +1094,7 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_field = e_ldsel; goto do_basic_type_3; case R_HPPA_ABS_CALL_RD11: - r_field = e_rdsel; - goto do_basic_type_3; case R_HPPA_ABS_CALL_RD14: - r_field = e_rdsel; - goto do_basic_type_3; case R_HPPA_ABS_CALL_RD17: r_field = e_rdsel; goto do_basic_type_3; @@ -1410,24 +1102,18 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_field = e_lrsel; goto do_basic_type_3; case R_HPPA_ABS_CALL_RR14: - r_field = e_rrsel; - goto do_basic_type_3; case R_HPPA_ABS_CALL_RR17: 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); + sym_value, r_addend, r_format, + r_field, r_pcrel); break; /* Handle all the basic type 4 relocations. */ case R_HPPA_PCREL_CALL_11: - r_field = e_fsel; - goto do_basic_type_4; case R_HPPA_PCREL_CALL_14: - r_field = e_fsel; - goto do_basic_type_4; case R_HPPA_PCREL_CALL_17: r_field = e_fsel; goto do_basic_type_4; @@ -1435,11 +1121,7 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_field = e_lsel; goto do_basic_type_4; case R_HPPA_PCREL_CALL_R11: - r_field = e_rsel; - goto do_basic_type_4; case R_HPPA_PCREL_CALL_R14: - r_field = e_rsel; - goto do_basic_type_4; case R_HPPA_PCREL_CALL_R17: r_field = e_rsel; goto do_basic_type_4; @@ -1447,11 +1129,7 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_field = e_lssel; goto do_basic_type_4; case R_HPPA_PCREL_CALL_RS11: - r_field = e_rssel; - goto do_basic_type_4; case R_HPPA_PCREL_CALL_RS14: - r_field = e_rssel; - goto do_basic_type_4; case R_HPPA_PCREL_CALL_RS17: r_field = e_rssel; goto do_basic_type_4; @@ -1459,11 +1137,7 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_field = e_ldsel; goto do_basic_type_4; case R_HPPA_PCREL_CALL_RD11: - r_field = e_rdsel; - goto do_basic_type_4; case R_HPPA_PCREL_CALL_RD14: - r_field = e_rdsel; - goto do_basic_type_4; case R_HPPA_PCREL_CALL_RD17: r_field = e_rdsel; goto do_basic_type_4; @@ -1471,15 +1145,13 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_field = e_lrsel; goto do_basic_type_4; case R_HPPA_PCREL_CALL_RR14: - r_field = e_rrsel; - goto do_basic_type_4; case R_HPPA_PCREL_CALL_RR17: 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); + sym_value, r_addend, r_format, + r_field, r_pcrel); break; /* Handle all the basic type 5 relocations. */ @@ -1496,65 +1168,23 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, 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); + sym_value, r_addend, r_format, + r_field, r_pcrel); break; /* Handle all basic type 6 relocations. */ 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); + hppa_elf_relocate_unwind_table (abfd, data, addr, + sym_value, r_addend, + r_type, r_field); return bfd_reloc_ok; - /* Handle the stack operations and similar braindamage. */ - case R_HPPA_PUSH_CONST: - case R_HPPA_PUSH_PC: - case R_HPPA_PUSH_SYM: - case R_HPPA_PUSH_GOTOFF: - case R_HPPA_PUSH_ABS_CALL: - case R_HPPA_PUSH_PCREL_CALL: - case R_HPPA_PUSH_PLABEL: - case R_HPPA_MAX: - case R_HPPA_MIN: - case R_HPPA_ADD: - case R_HPPA_SUB: - case R_HPPA_MULT: - case R_HPPA_DIV: - case R_HPPA_MOD: - case R_HPPA_AND: - case R_HPPA_OR: - case R_HPPA_XOR: - case R_HPPA_NOT: - case R_HPPA_LSHIFT: - case R_HPPA_ARITH_RSHIFT: - case R_HPPA_LOGIC_RSHIFT: - case R_HPPA_EXPR_F: - case R_HPPA_EXPR_L: - case R_HPPA_EXPR_R: - case R_HPPA_EXPR_LS: - case R_HPPA_EXPR_RS: - case R_HPPA_EXPR_LD: - case R_HPPA_EXPR_RD: - case R_HPPA_EXPR_LR: - case R_HPPA_EXPR_RR: - case R_HPPA_EXPR_32: - case R_HPPA_EXPR_21: - case R_HPPA_EXPR_11: - case R_HPPA_EXPR_14: - case R_HPPA_EXPR_17: - case R_HPPA_EXPR_12: - fprintf (stderr, "Relocation problem: "); - fprintf (stderr, "Unimplemented reloc type %d, in module %s\n", - r_type, abfd->filename); - return bfd_reloc_notsupported; - /* This is a linker internal relocation. */ case R_HPPA_STUB_CALL_17: /* This relocation is for a branch to a long branch stub. Change instruction to a BLE,N. It may also be necessary - to change interchange the branch and its delay slot. + to interchange the branch and its delay slot. The original instruction stream is bl <foo>,r ; call foo using register r as @@ -1570,13 +1200,21 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, This braindamage is necessary because the compiler may put an instruction which uses %r31 in the delay slot of the original call. By changing the call instruction from a "bl" to a "ble" - %r31 gets clobbered before the delay slot executes. + %r31 gets clobbered before the delay slot executes. This + also means the stub has to play funny games to make sure + we return to the instruction just after the BLE rather than + two instructions after the BLE. We do not interchange the branch and delay slot if the delay slot was already nullified, or if the instruction in the delay slot modifies the return pointer to avoid an unconditional - jump after the call returns (GCC optimization). */ + jump after the call returns (GCC optimization). + + None of this horseshit would be necessary if we put the + stubs between functions and just redirected the "bl" to + the stub. Live and learn. */ + /* Is this instruction nullified? (does this ever happen?) */ if (insn & 2) { insn = BLE_N_XXX_0_0; @@ -1584,12 +1222,12 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_type = R_HPPA_ABS_CALL_17; r_pcrel = 0; insn = hppa_elf_relocate_insn (abfd, input_section, insn, - addr, symbol_in, sym_value, - r_addend, r_type, r_format, - r_field, r_pcrel); + addr, sym_value, r_addend, + r_format, r_field, r_pcrel); } else { + /* So much for the trivial case... */ unsigned long old_delay_slot_insn = bfd_get_32 (abfd, hit_data + 4); unsigned rtn_reg = (insn & 0x03e00000) >> 21; @@ -1600,12 +1238,15 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, /* If the target of the LDO is the same as the return register then there is no reordering. We can leave the - instuction as a non-nullified BLE in this case. */ + instuction as a non-nullified BLE in this case. + + FIXME: This test looks wrong. If we had a ble using + ldo_target_reg as the *source* we'd fuck this up. */ if (ldo_target_reg == rtn_reg) { unsigned long new_delay_slot_insn = old_delay_slot_insn; - BFD_ASSERT(ldo_src_reg == ldo_target_reg); + BFD_ASSERT (ldo_src_reg == ldo_target_reg); new_delay_slot_insn &= 0xfc00ffff; new_delay_slot_insn |= ((31 << 21) | (31 << 16)); bfd_put_32 (abfd, new_delay_slot_insn, hit_data + 4); @@ -1613,9 +1254,8 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_type = R_HPPA_ABS_CALL_17; r_pcrel = 0; insn = hppa_elf_relocate_insn (abfd, input_section, insn, - addr, symbol_in, sym_value, - r_addend, r_type, r_format, - r_field, r_pcrel); + addr, sym_value, r_addend, + r_format, r_field, r_pcrel); bfd_put_32 (abfd, insn, hit_data); return bfd_reloc_ok; } @@ -1627,8 +1267,8 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_type = R_HPPA_ABS_CALL_17; r_pcrel = 0; insn = hppa_elf_relocate_insn (abfd, input_section, insn, - addr, symbol_in, sym_value, - r_addend, r_type, r_format, + addr, sym_value, + r_addend, r_format, r_field, r_pcrel); bfd_put_32 (abfd, insn, hit_data); return bfd_reloc_ok; @@ -1637,8 +1277,8 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, { /* Check to see if the delay slot instruction has a relocation. If so, we need to change the address - field of it, because the instruction it relocates - is going to be moved. */ + field of it because the instruction it relocates + is going to be moved. Oh what a mess. */ arelent * next_reloc_entry = reloc_entry+1; if (next_reloc_entry->address == reloc_entry->address + 4) @@ -1651,13 +1291,14 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_type = R_HPPA_ABS_CALL_17; r_pcrel = 0; insn = hppa_elf_relocate_insn (abfd, input_section, insn, - addr + 4, symbol_in, - sym_value, r_addend, r_type, + addr + 4, + sym_value, r_addend, r_format, r_field, r_pcrel); bfd_put_32 (abfd, insn, hit_data + 4); return bfd_reloc_ok; } } + /* Same comments as above regarding incorrect test. */ else if (rtn_reg == 31) { /* The return register is r31, so this is a millicode call. @@ -1666,8 +1307,8 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_type = R_HPPA_ABS_CALL_17; r_pcrel = 0; insn = hppa_elf_relocate_insn (abfd, input_section, insn, - addr, symbol_in, sym_value, - r_addend, r_type, r_format, + addr, sym_value, + r_addend, r_format, r_field, r_pcrel); bfd_put_32 (abfd, insn, hit_data); return bfd_reloc_ok; @@ -1690,8 +1331,8 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, r_type = R_HPPA_ABS_CALL_17; r_pcrel = 0; insn = hppa_elf_relocate_insn (abfd, input_section, insn, - addr + 4, symbol_in, sym_value, - r_addend, r_type, r_format, + addr + 4, sym_value, + r_addend, r_format, r_field, r_pcrel); bfd_put_32 (abfd, insn, hit_data + 4); return bfd_reloc_ok; @@ -1699,9 +1340,10 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, } break; + /* Something we don't know how to handle. */ default: *error_message = (char *) "Unrecognized reloc"; - return bfd_reloc_dangerous; + return bfd_reloc_notsupported; } /* Update the instruction word. */ @@ -1709,7 +1351,10 @@ hppa_elf_reloc (abfd, reloc_entry, symbol_in, data, input_section, output_bfd, return (bfd_reloc_ok); } -static const reloc_howto_type * +/* Return the address of the howto table entry to perform the CODE + relocation for an ARCH machine. */ + +static CONST reloc_howto_type * elf_hppa_reloc_type_lookup (arch, code) bfd_arch_info_type *arch; bfd_reloc_code_real_type code; @@ -1719,18 +1364,20 @@ elf_hppa_reloc_type_lookup (arch, code) BFD_ASSERT ((int) elf_hppa_howto_table[(int) code].type == (int) code); return &elf_hppa_howto_table[(int) code]; } - - return (reloc_howto_type *) 0; + return NULL; } -#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup +/* Update the symbol extention chain to include the symbol pointed to + by SYMBOLP if SYMBOLP is a function symbol. Used internally and by GAS. */ void -elf_hppa_tc_symbol (abfd, symbolP, sym_idx) +elf_hppa_tc_symbol (abfd, symbolP, sym_idx, symext_root, symext_last) bfd *abfd; elf_symbol_type *symbolP; int sym_idx; + symext_chainS **symext_root; + symext_chainS **symext_last; { symext_chainS *symextP; unsigned int arg_reloc; @@ -1746,10 +1393,11 @@ elf_hppa_tc_symbol (abfd, symbolP, sym_idx) if (arg_reloc == 0) return; + /* Allocate memory and initialize this entry. */ symextP = (symext_chainS *) bfd_alloc (abfd, sizeof (symext_chainS) * 2); if (!symextP) { - bfd_error = no_memory; + bfd_set_error (bfd_error_no_memory); abort(); /* FIXME */ } @@ -1759,47 +1407,45 @@ elf_hppa_tc_symbol (abfd, symbolP, sym_idx) symextP[1].entry = ELF32_HPPA_SX_WORD (HPPA_SXT_ARG_RELOC, arg_reloc); symextP[1].next = NULL; - if (symext_rootP == NULL) + /* Now update the chain itself so it can be walked later to build + the symbol extension section. */ + if (*symext_root == NULL) { - symext_rootP = &symextP[0]; - symext_lastP = &symextP[1]; + *symext_root = &symextP[0]; + *symext_last = &symextP[1]; } else { - symext_lastP->next = &symextP[0]; - symext_lastP = &symextP[1]; + (*symext_last)->next = &symextP[0]; + *symext_last = &symextP[1]; } } -/* Accessor function for the list of symbol extension records. */ -symext_chainS *elf32_hppa_get_symextn_chain() -{ - return symext_rootP; -} - -static symext_entryS *symextn_contents; -static unsigned int symextn_contents_real_size; +/* Build the symbol extension section. Used internally and by GAS. */ void -elf_hppa_tc_make_sections (abfd, ignored) +elf_hppa_tc_make_sections (abfd, symext_root) bfd *abfd; - PTR ignored; + symext_chainS *symext_root; { symext_chainS *symextP; - int size; - int n; - int i; - void hppa_elf_stub_finish (); /* forward declaration */ + int size, n, i; asection *symextn_sec; + /* FIXME: Huh? I don't see what this is supposed to do for us. */ hppa_elf_stub_finish (abfd); - if (symext_rootP == NULL) + /* If there are no entries in the symbol extension chain, then + there is no symbol extension section. */ + if (symext_root == NULL) return; - for (n = 0, symextP = symext_rootP; symextP; symextP = symextP->next, ++n) + /* Count the number of entries on the chain. */ + for (n = 0, symextP = symext_root; symextP; symextP = symextP->next, ++n) ; + /* Create the symbol extension section and set some appropriate + attributes. */ size = sizeof (symext_entryS) * n; symextn_sec = bfd_get_section_by_name (abfd, SYMEXTN_SECTION_NAME); if (symextn_sec == (asection *) 0) @@ -1807,22 +1453,26 @@ elf_hppa_tc_make_sections (abfd, ignored) symextn_sec = bfd_make_section (abfd, SYMEXTN_SECTION_NAME); bfd_set_section_flags (abfd, symextn_sec, - SEC_HAS_CONTENTS | SEC_LOAD | SEC_ALLOC | SEC_CODE | SEC_READONLY); + SEC_LOAD | SEC_HAS_CONTENTS | SEC_DATA); symextn_sec->output_section = symextn_sec; symextn_sec->output_offset = 0; bfd_set_section_alignment (abfd, symextn_sec, 2); } + bfd_set_section_size (abfd, symextn_sec, symextn_contents_real_size); + symextn_contents_real_size = size; + + /* Grab some memory for the contents of the symbol extension section + itself. */ symextn_contents = (symext_entryS *) bfd_alloc (abfd, size); if (!symextn_contents) { - bfd_error = no_memory; + bfd_set_error (bfd_error_no_memory); abort(); /* FIXME */ } - for (i = 0, symextP = symext_rootP; symextP; symextP = symextP->next, ++i) + /* Fill in the contents of the symbol extension section. */ + for (i = 0, symextP = symext_root; symextP; symextP = symextP->next, ++i) symextn_contents[i] = symextP->entry; - symextn_contents_real_size = size; - bfd_set_section_size (abfd, symextn_sec, symextn_contents_real_size); return; } @@ -1974,7 +1624,7 @@ new_stub (abfd, stub_sec, link_info) } else { - bfd_error = no_memory; + bfd_set_error (bfd_error_no_memory); abort(); /* FIXME */ } @@ -2040,7 +1690,7 @@ add_stub_by_name(abfd, stub_sec, sym, link_info) } else { - bfd_error = no_memory; + bfd_set_error (bfd_error_no_memory); abort(); /* FIXME */ } } @@ -2164,7 +1814,7 @@ hppa_elf_stub_finish (output_bfd) /* All the stubs have been built. Finish up building */ /* stub section. Apply relocations to the section. */ - if ( stubs_finished ) + if (stubs_finished) return; for (; stub_list; stub_list = stub_list->next) @@ -2287,7 +1937,7 @@ hppa_elf_stub_branch_reloc (stub_desc, /* the bfd */ } if (!stub_desc->stub_sec->relocation) { - bfd_error = no_memory; + bfd_set_error (bfd_error_no_memory); abort(); /* FIXME */ } } @@ -2342,7 +1992,7 @@ hppa_elf_stub_reloc (stub_desc, /* the bfd */ } if (!stub_desc->stub_sec->relocation) { - bfd_error = no_memory; + bfd_set_error (bfd_error_no_memory); abort(); /* FIXME */ } } @@ -2430,7 +2080,7 @@ hppa_elf_build_arg_reloc_stub (abfd, output_bfd, link_info, reloc_entry, stub_desc->stub_contents = (char *) malloc (STUB_BUFFER_INCR); if (!stub_desc->stub_contents) { - bfd_error = no_memory; + bfd_set_error (bfd_error_no_memory); return NULL; } } @@ -2462,7 +2112,7 @@ hppa_elf_build_arg_reloc_stub (abfd, output_bfd, link_info, reloc_entry, sizeof (asymbol *)); if (!reloc_entry->sym_ptr_ptr) { - bfd_error = no_memory; + bfd_set_error (bfd_error_no_memory); return NULL; } reloc_entry->sym_ptr_ptr[0] = stub_sym; @@ -2478,13 +2128,13 @@ hppa_elf_build_arg_reloc_stub (abfd, output_bfd, link_info, reloc_entry, stub_sym = bfd_make_empty_symbol (abfd); if (!stub_sym) { - bfd_error = no_memory; + bfd_set_error (bfd_error_no_memory); return NULL; } stub_sym->name = bfd_zalloc (abfd, strlen (stub_sym_name) + 1); if (!stub_sym->name) { - bfd_error = no_memory; + bfd_set_error (bfd_error_no_memory); return NULL; } strcpy ((char *) stub_sym->name, stub_sym_name); @@ -2501,7 +2151,7 @@ hppa_elf_build_arg_reloc_stub (abfd, output_bfd, link_info, reloc_entry, sizeof (asymbol *)); if (!reloc_entry->sym_ptr_ptr) { - bfd_error = no_memory; + bfd_set_error (bfd_error_no_memory); return NULL; } reloc_entry->sym_ptr_ptr[0] = stub_sym; @@ -2976,7 +2626,7 @@ hppa_elf_build_long_branch_stub (abfd, output_bfd, link_info, reloc_entry, sizeof (asymbol *)); if (!reloc_entry->sym_ptr_ptr) { - bfd_error = no_memory; + bfd_set_error (bfd_error_no_memory); return NULL; } reloc_entry->sym_ptr_ptr[0] = stub_sym; @@ -2988,13 +2638,13 @@ hppa_elf_build_long_branch_stub (abfd, output_bfd, link_info, reloc_entry, stub_sym = bfd_make_empty_symbol (abfd); if (!stub_sym) { - bfd_error = no_memory; + bfd_set_error (bfd_error_no_memory); return NULL; } stub_sym->name = bfd_zalloc (abfd, strlen (stub_sym_name) + 1); if (!stub_sym->name) { - bfd_error = no_memory; + bfd_set_error (bfd_error_no_memory); return NULL; } strcpy ((char *) stub_sym->name, stub_sym_name); @@ -3012,7 +2662,7 @@ hppa_elf_build_long_branch_stub (abfd, output_bfd, link_info, reloc_entry, sizeof (asymbol *)); if (!reloc_entry->sym_ptr_ptr) { - bfd_error = no_memory; + bfd_set_error (bfd_error_no_memory); return NULL; } reloc_entry->sym_ptr_ptr[0] = stub_sym; @@ -3127,7 +2777,7 @@ hppa_elf_long_branch_needed_p (abfd, asec, reloc_entry, symbol, insn) case BL: raddr = reloc_entry->address + asec->output_offset + asec->output_section->vma; - if ( too_far(sym_value - raddr,fmt+1) ) + if (too_far(sym_value - raddr,fmt+1)) { #ifdef DETECT_STUBS fprintf(stderr,"long_branch needed on BL insn: abfd=%s,sym=%s,distance=0x%x\n",abfd->filename,symbol->name,sym_value - reloc_entry->address); @@ -3351,15 +3001,15 @@ hppa_elf_set_section_contents (abfd, section, location, offset, count) file_ptr offset; bfd_size_type count; { - if ( strcmp(section->name, ".hppa_linker_stubs") == 0 ) + if (strcmp(section->name, ".hppa_linker_stubs") == 0) { - if ( linker_stubs_max_size < offset + count ) + if (linker_stubs_max_size < offset + count) { linker_stubs_max_size = offset + count + STUB_ALLOC_INCR; linker_stubs = (char *)realloc(linker_stubs, linker_stubs_max_size); } - if ( offset + count > linker_stubs_size ) + if (offset + count > linker_stubs_size) linker_stubs_size = offset + count; memcpy(linker_stubs + offset,location,count); @@ -3429,15 +3079,16 @@ hppa_elf_get_section_contents (abfd, section, location, offset, count) int *symtab_map = (int *) elf_sym_extra(section->output_section->owner); - for (i = 0; i < section->output_section->owner->symcount; i++ ) + for (i = 0; i < section->output_section->owner->symcount; i++) { elf_hppa_tc_symbol(section->output_section->owner, ((elf_symbol_type *) section->output_section->owner->outsymbols[i]), - symtab_map[i]); + symtab_map[i], &symext_rootP, &symext_lastP); } symext_chain_built++; - elf_hppa_tc_make_sections (section->output_section->owner, NULL); + elf_hppa_tc_make_sections (section->output_section->owner, + symext_rootP); } /* At this point we know that the symbol extension section has been @@ -3511,9 +3162,9 @@ elf32_hppa_backend_symbol_table_processing (abfd, esyms,symcnt) /* If the symbol extension section does not exist, all the symbol */ /* all the symbol extension information is assumed to be zero. */ - if ( symextn_hdr == NULL ) + if (symextn_hdr == NULL) { - for ( i = 0; i < symcnt; i++ ) + for (i = 0; i < symcnt; i++) { esyms[i].tc_data.hppa_arg_reloc = 0; } @@ -3525,7 +3176,7 @@ elf32_hppa_backend_symbol_table_processing (abfd, esyms,symcnt) symextn_hdr->contents = bfd_zalloc(abfd,symextn_hdr->sh_size); if (!symextn_hdr->contents) { - bfd_error = no_memory; + bfd_set_error (bfd_error_no_memory); return false; } symextn_hdr->size = symextn_hdr->sh_size; @@ -3534,34 +3185,34 @@ elf32_hppa_backend_symbol_table_processing (abfd, esyms,symcnt) if (bfd_seek (abfd, symextn_hdr->sh_offset, SEEK_SET) == -1) { - bfd_error = system_call_error; + bfd_set_error (bfd_error_system_call); return (false); } if (bfd_read ((PTR) symextn_hdr->contents, 1, symextn_hdr->size, abfd) != symextn_hdr->size) { free ((PTR)symextn_hdr->contents); - bfd_error = system_call_error; + bfd_set_error (bfd_error_system_call); return (false); } /* parse the entries, updating the symtab entries as we go */ - for ( i = 0; i < symextn_hdr->size / sizeof(symext_entryS); i++ ) + for (i = 0; i < symextn_hdr->size / sizeof(symext_entryS); i++) { symext_entryS *seP = ((symext_entryS *)symextn_hdr->contents) + i; int se_value = ELF32_HPPA_SX_VAL(*seP); int se_type = ELF32_HPPA_SX_TYPE(*seP); - switch ( se_type ) + switch (se_type) { case HPPA_SXT_NULL: break; case HPPA_SXT_SYMNDX: - if ( se_value >= symcnt ) + if (se_value >= symcnt) { - bfd_error = bad_value; + bfd_set_error (bfd_error_bad_value); bfd_perror("elf32_hppa_backend_symbol_table_processing -- symbol index"); return (false); } @@ -3573,7 +3224,7 @@ elf32_hppa_backend_symbol_table_processing (abfd, esyms,symcnt) break; default: - bfd_error = bad_value; + bfd_set_error (bfd_error_bad_value); bfd_perror("elf32_hppa_backend_symbol_table_processing"); return (false); } @@ -3590,31 +3241,31 @@ elf32_hppa_backend_section_processing (abfd, secthdr) { int i,j,k; - if ( secthdr->sh_type == SHT_HPPA_SYMEXTN ) + if (secthdr->sh_type == SHT_HPPA_SYMEXTN) { - for ( i = 0; i < secthdr->size / sizeof(symext_entryS); i++ ) + for (i = 0; i < secthdr->size / sizeof(symext_entryS); i++) { symext_entryS *seP = ((symext_entryS *)secthdr->contents) + i; int se_value = ELF32_HPPA_SX_VAL(*seP); int se_type = ELF32_HPPA_SX_TYPE(*seP); - switch ( se_type ) + switch (se_type) { case HPPA_SXT_NULL: break; case HPPA_SXT_SYMNDX: - for ( j = 0; j < abfd->symcount; j++ ) + for (j = 0; j < abfd->symcount; j++) { /* locate the map entry for this symbol, if there is one. */ /* modify the symbol extension section symbol index entry */ /* to reflect the new symbol table index */ - for ( k = 0; k < elf32_hppa_symextn_map_size; k++ ) + for (k = 0; k < elf32_hppa_symextn_map_size; k++) { - if ( elf32_hppa_symextn_map[k].old_index == se_value + if (elf32_hppa_symextn_map[k].old_index == se_value && elf32_hppa_symextn_map[k].bfd == abfd->outsymbols[j]->the_bfd - && elf32_hppa_symextn_map[k].sym == abfd->outsymbols[j] ) + && elf32_hppa_symextn_map[k].sym == abfd->outsymbols[j]) { bfd_put_32(abfd, ELF32_HPPA_SX_WORD (HPPA_SXT_SYMNDX, j), @@ -3628,7 +3279,7 @@ elf32_hppa_backend_section_processing (abfd, secthdr) break; default: - bfd_error = bad_value; + bfd_set_error (bfd_error_bad_value); bfd_perror("elf32_hppa_backend_section_processing"); return (false); } @@ -3647,9 +3298,9 @@ elf32_hppa_backend_section_from_shdr (abfd, hdr, name) { asection *newsect; - if ( hdr->sh_type == SHT_HPPA_SYMEXTN ) + if (hdr->sh_type == SHT_HPPA_SYMEXTN) { - BFD_ASSERT ( strcmp(name,".hppa_symextn") == 0 ); + BFD_ASSERT (strcmp(name,".hppa_symextn") == 0); /* Bits that get saved. This one is real. */ if (!hdr->rawdata) @@ -3694,7 +3345,7 @@ elf32_hppa_backend_fake_sections (abfd, secthdr, asect) asection *asect; { - if ( strcmp(asect->name, ".hppa_symextn") == 0 ) + if (strcmp(asect->name, ".hppa_symextn") == 0) { secthdr->sh_type = SHT_HPPA_SYMEXTN; secthdr->sh_flags = 0; @@ -3737,24 +3388,24 @@ elf32_hppa_backend_section_from_bfd_section (abfd, hdr, asect, retval) asection *asect; int *retval; { - if ( hdr->sh_type == SHT_HPPA_SYMEXTN ) + if (hdr->sh_type == SHT_HPPA_SYMEXTN) { if (hdr->rawdata) { if (((struct sec *) (hdr->rawdata)) == asect) { - BFD_ASSERT( strcmp(asect->name, ".hppa_symextn") == 0 ); + BFD_ASSERT (strcmp(asect->name, ".hppa_symextn") == 0); return true; } } } - else if ( hdr->sh_type == SHT_STRTAB ) + else if (hdr->sh_type == SHT_STRTAB) { if (hdr->rawdata) { if (((struct sec *) (hdr->rawdata)) == asect) { - BFD_ASSERT ( strcmp (asect->name, ".stabstr") == 0); + BFD_ASSERT (strcmp (asect->name, ".stabstr") == 0); return true; } } @@ -3763,6 +3414,7 @@ elf32_hppa_backend_section_from_bfd_section (abfd, hdr, asect, retval) return false; } +#define bfd_elf32_bfd_reloc_type_lookup elf_hppa_reloc_type_lookup #define elf_backend_section_from_bfd_section elf32_hppa_backend_section_from_bfd_section #define bfd_generic_get_section_contents hppa_elf_get_section_contents diff --git a/bfd/elf32-hppa.h b/bfd/elf32-hppa.h index 77d5827..7b1aede 100644 --- a/bfd/elf32-hppa.h +++ b/bfd/elf32-hppa.h @@ -1,392 +1,319 @@ -/* ELF32/HPPA relocation support +/* ELF32/HPPA support - This file contains ELF32/HPPA relocation support as specified - in the Stratus FTX/Golf Object File Format (SED-1762) dated - November 19, 1992. -*/ + This file contains ELF32/HPPA relocation support as specified + in the Stratus FTX/Golf Object File Format (SED-1762) dated + November 19, 1992. + Copyright (C) 1990-1991 Free Software Foundation, Inc. -/* - Copyright (C) 1990-1991 Free Software Foundation, Inc. + Written by: - Written by: - - Center for Software Science - Department of Computer Science - University of Utah + Center for Software Science + Department of Computer Science + University of Utah -This file is part of BFD, the Binary File Descriptor library. + This file is part of BFD, the Binary File Descriptor library. -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 -(at your option) any later version. + 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 + (at your option) any later version. -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. -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. */ + 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. */ #ifndef _ELF32_HPPA_H #define _ELF32_HPPA_H #include "libelf.h" -/* 9.3.3. Parameter relocation information */ - -/* As mentioned previously, relocations of calls must be accompanied */ -/* by parameter relocation information, indicating which registers the */ -/* first for parameter words, and the return value, are located in. */ -/* This information accompanies the R_HPPA_ABS_CALL.., */ -/* R_HPPA_PCREL_CALL... and R_HPPA_PUSH_PROC relocation types, */ -/* described below. The information is kept in the high-order 10 bits */ -/* of Elf32_rela.r_addend, while the low-order 22 bits are a signed */ -/* constant to be used in calculating the call target. The following */ -/* macros are used to extract and combine these data in r_addend. */ - -#define ELF32_HPPA_R_ARG_RELOC(a) (((a) >> 22) & 0x3FF) -#define ELF32_HPPA_R_CONSTANT(a) ((((Elf32_Sword)(a)) << 10) >> 10) -#define ELF32_HPPA_R_ADDEND(r,c) (((r) << 22) + ((c) & 0x3FFFFF)) - /* ELF/HPPA relocation types */ -/* name expression format */ -/* -------------------------------------------------------------- */ typedef enum { - /* 9.3.4. Address relocation types */ - - /* These relocation types do simple base+offset relocations, and are */ - /* normally used for absolute references to data. */ - - /* By convention, relocation type zero is always "no relocation", */ - /* while type one is 32-bit word relocation. */ - - R_HPPA_NONE, /* - - */ - - R_HPPA_32, /* Symbol + Addend 32 */ - R_HPPA_11, /* Symbol + Addend 11 */ - R_HPPA_14, /* Symbol + Addend 11 */ - R_HPPA_17, /* Symbol + Addend 11 */ - R_HPPA_L21, /* L (Symbol, Addend) 21 */ - R_HPPA_R11, /* R (Symbol, Addend) 11 */ - R_HPPA_R14, /* R (Symbol, Addend) 14 */ - R_HPPA_R17, /* R (Symbol, Addend) 17 */ - R_HPPA_LS21, /* LS(Symbol, Addend) 21 */ - R_HPPA_RS11, /* RS(Symbol, Addend) 11 */ - R_HPPA_RS14, /* RS(Symbol, Addend) 14 */ - R_HPPA_RS17, /* RS(Symbol, Addend) 17 */ - R_HPPA_LD21, /* LD(Symbol, Addend) 21 */ - R_HPPA_RD11, /* RD(Symbol, Addend) 11 */ - R_HPPA_RD14, /* RD(Symbol, Addend) 14 */ - R_HPPA_RD17, /* RD(Symbol, Addend) 17 */ - R_HPPA_LR21, /* LR(Symbol, Addend) 21 */ - R_HPPA_RR14, /* RR(Symbol, Addend) 14 */ - R_HPPA_RR17, /* RR(Symbol, Addend) 17 */ - - /* 9.3.5. GOTOFF address relocation types */ - - /* The Global Offset Table (GOT) is a table of pointers to data, but */ - /* its address can also be used as a base pointer to address data, */ - /* similar to the way the DP is used in HP/UX. The expression */ - /* calculation yields a signed offset of an address from the GOT. */ - - R_HPPA_GOTOFF_11, /* Symbol - GOT + Addend 11 */ - R_HPPA_GOTOFF_14, /* Symbol - GOT + Addend 14 */ - R_HPPA_GOTOFF_L21, /* L (Sym - GOT, Addend) 21 */ - R_HPPA_GOTOFF_R11, /* R (Sym - GOT, Addend) 11 */ - R_HPPA_GOTOFF_R14, /* R (Sym - GOT, Addend) 14 */ - R_HPPA_GOTOFF_LS21, /* LS(Sym - GOT, Addend) 21 */ - R_HPPA_GOTOFF_RS11, /* RS(Sym - GOT, Addend) 11 */ - R_HPPA_GOTOFF_RS14, /* RS(Sym - GOT, Addend) 14 */ - R_HPPA_GOTOFF_LD21, /* LD(Sym - GOT, Addend) 21 */ - R_HPPA_GOTOFF_RD11, /* RD(Sym - GOT, Addend) 11 */ - R_HPPA_GOTOFF_RD14, /* RD(Sym - GOT, Addend) 14 */ - R_HPPA_GOTOFF_LR21, /* LR(Sym - GOT, Addend) 21 */ - R_HPPA_GOTOFF_RR14, /* RR(Sym - GOT, Addend) 14 */ - - /* 9.3.6. Absolute call relocation types */ - - /* Relocations of 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. */ - - R_HPPA_ABS_CALL_11, /* Symbol + Addend 11 */ - R_HPPA_ABS_CALL_14, /* Symbol + Addend 14 */ - R_HPPA_ABS_CALL_17, /* Symbol + Addend 17 */ - R_HPPA_ABS_CALL_L21, /* L (Symbol, Addend) 21 */ - R_HPPA_ABS_CALL_R11, /* R (Symbol, Addend) 11 */ - R_HPPA_ABS_CALL_R14, /* R (Symbol, Addend) 14 */ - R_HPPA_ABS_CALL_R17, /* R (Symbol, Addend) 17 */ - R_HPPA_ABS_CALL_LS21, /* LS(Symbol, Addend) 21 */ - R_HPPA_ABS_CALL_RS11, /* RS(Symbol, Addend) 11 */ - R_HPPA_ABS_CALL_RS14, /* RS(Symbol, Addend) 14 */ - R_HPPA_ABS_CALL_RS17, /* RS(Symbol, Addend) 17 */ - R_HPPA_ABS_CALL_LD21, /* LD(Symbol, Addend) 21 */ - R_HPPA_ABS_CALL_RD11, /* RD(Symbol, Addend) 11 */ - R_HPPA_ABS_CALL_RD14, /* RD(Symbol, Addend) 14 */ - R_HPPA_ABS_CALL_RD17, /* RD(Symbol, Addend) 17 */ - R_HPPA_ABS_CALL_LR21, /* LR(Symbol, Addend) 21 */ - R_HPPA_ABS_CALL_RR14, /* RR(Symbol, Addend) 14 */ - R_HPPA_ABS_CALL_RR17, /* RR(Symbol, Addend) 17 */ - - /* 9.3.7. PC-relative call relocation types */ - - /* PC-relative relocation calculates the difference between an address */ - /* and the location being relocated. This is most often used to */ - /* relocate pc-relative calls. */ - - /* As with the ABS_CALL relocation types, the ten high-order bits of */ - /* the addend field carry parameter relocation information, while */ - /* the low-order 22 bits are sign-extended to form the Addend. */ - - R_HPPA_PCREL_CALL_11, /* Symbol - PC + Addend 11 */ - R_HPPA_PCREL_CALL_14, /* Symbol - PC + Addend 14 */ - R_HPPA_PCREL_CALL_17, /* Symbol - PC + Addend 17 */ - R_HPPA_PCREL_CALL_12, /* Symbol - PC + Addend 12 */ - R_HPPA_PCREL_CALL_L21, /* L (Symbol - PC, Addend) 21 */ - R_HPPA_PCREL_CALL_R11, /* R (Symbol - PC, Addend) 11 */ - R_HPPA_PCREL_CALL_R14, /* R (Symbol - PC, Addend) 14 */ - R_HPPA_PCREL_CALL_R17, /* R (Symbol - PC, Addend) 17 */ - R_HPPA_PCREL_CALL_LS21, /* LS(Symbol - PC, Addend) 21 */ - R_HPPA_PCREL_CALL_RS11, /* RS(Symbol - PC, Addend) 11 */ - R_HPPA_PCREL_CALL_RS14, /* RS(Symbol - PC, Addend) 14 */ - R_HPPA_PCREL_CALL_RS17, /* RS(Symbol - PC, Addend) 17 */ - R_HPPA_PCREL_CALL_LD21, /* LD(Symbol - PC, Addend) 21 */ - R_HPPA_PCREL_CALL_RD11, /* RD(Symbol - PC, Addend) 11 */ - R_HPPA_PCREL_CALL_RD14, /* RD(Symbol - PC, Addend) 14 */ - R_HPPA_PCREL_CALL_RD17, /* RD(Symbol - PC, Addend) 17 */ - R_HPPA_PCREL_CALL_LR21, /* LR(Symbol - PC, Addend) 21 */ - R_HPPA_PCREL_CALL_RR14, /* RR(Symbol - PC, Addend) 14 */ - R_HPPA_PCREL_CALL_RR17, /* RR(Symbol - PC, Addend) 17 *//* #69 */ - - /* 9.3.8. Plabel relocation types */ - - /* Plabels are designed to allow code pointers to be passed between */ - /* spaces. The addend of the relocation should be either 0 (no static */ - /* link) or 2 (static link required). These relocations correspond to */ - /* the P%, LP% and RP% field selectors. [Description is incomplete] */ - - R_HPPA_PLABEL_32, /* F(Plabel(Symbol,Addend),0) 32 */ - R_HPPA_PLABEL_11, /* F(Plabel(Symbol,Addend),0) 11 */ - R_HPPA_PLABEL_14, /* F(Plabel(Symbol,Addend),0) 14 */ - R_HPPA_PLABEL_L21, /* L(Plabel(Symbol,Addend),0) 21 */ - R_HPPA_PLABEL_R11, /* R(Plabel(Symbol,Addend),0) 11 */ - R_HPPA_PLABEL_R14, /* R(Plabel(Symbol,Addend),0) 14 */ - - /* 9.3.9. 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. */ - /* [Prose to come] */ - - R_HPPA_DLT_32, /* F(DLTOFF) 32 */ - R_HPPA_DLT_11, /* F(DLTOFF) 11 */ - R_HPPA_DLT_14, /* F(DLTOFF) 14 */ - R_HPPA_DLT_L21, /* L(DLTOFF) 21 */ - R_HPPA_DLT_R11, /* R(DLTOFF) 11 */ - R_HPPA_DLT_R14, /* R(DLTOFF) 14 */ - - /* 9.3.10. Relocations for unwinder tables */ - - /* As described above, the unwinder table consists of a series of */ - /* four-word entries, the first two of which are a pair of code */ - /* addresses. While it would be possible to relocate this table using */ - /* just R_HPPA_32, the amount of relocation data resulting would be */ - /* very large. To reduce that data, the following relocation types */ - /* have been defined. */ - - /* The first, R_HPPA_UNWIND_ENTRY, merely compresses two R_HPPA_32 */ - /* operations into one. It is designed for use in .rel-type */ - /* relocations, where the two 32-bit addends are taken from the unwind */ - /* section itself. */ - - /* The second, which is designed for use in .rela-type relocations, is */ - /* designed to relocate an entire unwinder table with one relocation */ - /* entry. It has the effect of multiple R_HPPA_UNWIND_ENTRY */ - /* relocations applied to successive unwinder table entries. The */ - /* number of entries to be relocated is given in the r_addend field of */ - /* the relocation entry. The rest of the relocation entry is used in */ - /* a normal way--r_offset is the offset of the first unwind entry in */ - /* the section, while ELF32_R_SYM(r_info) is the code section that all */ - /* the code addresses should be relocated from. */ - - R_HPPA_UNWIND_ENTRY, /* "128" */ - R_HPPA_UNWIND_ENTRIES, /* Addend * "128" */ - - /* 9.3.11. Relocation types for complex expressions */ - - /* As described above, new-format SOM fixups support complex */ - /* expressions by spreading the parts of the expression across */ - /* multiple entries. ELF for HPPA will have a similar mechanism, */ - /* although support for it may be optional. There are two main */ - /* reasons for defining it: first, the need to translate complex */ - /* SOM fixup expressions to ELF, and second, to cover combinations */ - /* of expression, field and format not available with other */ - /* relocation types. */ - - /* ELF expression relocation entries are interpreted as postfix-form */ - /* expressions. They may be evaluated using a push-down stack. */ - - /* Usually, the addend field of these expression relocation entries is */ - /* unused, with the following exceptions: */ - - /* R_HPPA_PUSH_CONST: The addend field contains the constant. */ - - /* R_HPPA_PUSH_PROC: The high-order 10 bits of the addend field */ - /* contain parameter relocation information. The rest of */ - /* the addend field is unused. */ - - /* R_HPPA_LSHIFT, R_HPPA_ARITH_RSHIFT and R_HPPA_LOGIC_RSHIFT: */ - /* The addend field normally gives the amount to shift. */ - /* However, if that amount is zero, the shift amount is */ - /* popped from the top of the stack prior to popping the */ - /* amount to be shifted. */ - - /* name expression fld/fmt */ - /* ------------------------------------------------------------------- */ - R_HPPA_PUSH_CONST, /* push Addend - - */ - R_HPPA_PUSH_PC, /* push PC + Addend - - */ - R_HPPA_PUSH_SYM, /* push Symbol + Addend - - */ - R_HPPA_PUSH_GOTOFF, /* push Symbol - GOT + Addend - - */ - R_HPPA_PUSH_ABS_CALL, /* push Symbol + Addend - - */ - R_HPPA_PUSH_PCREL_CALL, /* push Symbol - PC + Addend - - */ - R_HPPA_PUSH_PLABEL, /* push Plabel(Symbol) - - */ - R_HPPA_MAX, /* pop A and B, push max(B,A) - - */ - R_HPPA_MIN, /* pop A and B, push min(B,A) - - */ - R_HPPA_ADD, /* pop A and B, push B + A - - */ - R_HPPA_SUB, /* pop A and B, push B - A - - */ - R_HPPA_MULT, /* pop A and B, push B * A - - */ - R_HPPA_DIV, /* pop A and B, push B / A - - */ - R_HPPA_MOD, /* pop A and B, push B % A - - */ - R_HPPA_AND, /* pop A and B, push B & A - - */ - R_HPPA_OR, /* pop A and B, push B | A - - */ - R_HPPA_XOR, /* pop A and B, push B ^ A - - */ - R_HPPA_NOT, /* pop A, push ~A - - */ - R_HPPA_LSHIFT, /* pop A, push A << Addend - - */ - R_HPPA_ARITH_RSHIFT, /* pop A, push A >> Addend - - */ - R_HPPA_LOGIC_RSHIFT, /* pop A, push A >> Addend - - */ - R_HPPA_EXPR_F, /* pop A, push A + Addend F - */ - R_HPPA_EXPR_L, /* pop A, push L(A,Addend) L - */ - R_HPPA_EXPR_R, /* pop A, push R(A,Addend) R - */ - R_HPPA_EXPR_LS, /* pop A, push LS(A,Addend) LS - */ - R_HPPA_EXPR_RS, /* pop A, push RS(A,Addend) RS - */ - R_HPPA_EXPR_LD, /* pop A, push LD(A,Addend) LD - */ - R_HPPA_EXPR_RD, /* pop A, push RD(A,Addend) RD - */ - R_HPPA_EXPR_LR, /* pop A, push LR(A,Addend) LR - */ - R_HPPA_EXPR_RR, /* pop A, push RR(A,Addend) RR - */ - - R_HPPA_EXPR_32, /* pop - 32 */ - R_HPPA_EXPR_21, /* pop - 21 */ - R_HPPA_EXPR_11, /* pop - 11 */ - R_HPPA_EXPR_14, /* pop - 14 */ - R_HPPA_EXPR_17, /* pop - 17 */ - R_HPPA_EXPR_12, /* pop - 12 */ - R_HPPA_STUB_CALL_17, /* Symbol + Addend 17 */ - R_HPPA_UNIMPLEMENTED /* N/A */ - } elf32_hppa_reloc_type; + /* 9.3.4. Address relocation types + These relocation types do simple base + offset relocations. + + By convention, relocation type zero is always "no relocation", + while type one is 32-bit word relocation. */ + + R_HPPA_NONE, /* - - */ + R_HPPA_32, /* Symbol + Addend 32 */ + R_HPPA_11, /* Symbol + Addend 11 */ + R_HPPA_14, /* Symbol + Addend 11 */ + R_HPPA_17, /* Symbol + Addend 11 */ + R_HPPA_L21, /* L (Symbol, Addend) 21 */ + R_HPPA_R11, /* R (Symbol, Addend) 11 */ + R_HPPA_R14, /* R (Symbol, Addend) 14 */ + R_HPPA_R17, /* R (Symbol, Addend) 17 */ + R_HPPA_LS21, /* LS(Symbol, Addend) 21 */ + R_HPPA_RS11, /* RS(Symbol, Addend) 11 */ + R_HPPA_RS14, /* RS(Symbol, Addend) 14 */ + R_HPPA_RS17, /* RS(Symbol, Addend) 17 */ + R_HPPA_LD21, /* LD(Symbol, Addend) 21 */ + R_HPPA_RD11, /* RD(Symbol, Addend) 11 */ + R_HPPA_RD14, /* RD(Symbol, Addend) 14 */ + R_HPPA_RD17, /* RD(Symbol, Addend) 17 */ + R_HPPA_LR21, /* LR(Symbol, Addend) 21 */ + R_HPPA_RR14, /* RR(Symbol, Addend) 14 */ + R_HPPA_RR17, /* RR(Symbol, Addend) 17 */ + + /* 9.3.5. GOTOFF address relocation types + + The Global Offset Table (GOT) is a table of pointers to data, but + its address can also be used as a base pointer to address data, + similar to the way the DP is used in HP/UX. The expression + calculation yields a signed offset of an address from the GOT. */ + + R_HPPA_GOTOFF_11, /* Symbol - GOT + Addend 11 */ + R_HPPA_GOTOFF_14, /* Symbol - GOT + Addend 14 */ + R_HPPA_GOTOFF_L21, /* L (Sym - GOT, Addend) 21 */ + R_HPPA_GOTOFF_R11, /* R (Sym - GOT, Addend) 11 */ + R_HPPA_GOTOFF_R14, /* R (Sym - GOT, Addend) 14 */ + R_HPPA_GOTOFF_LS21, /* LS(Sym - GOT, Addend) 21 */ + R_HPPA_GOTOFF_RS11, /* RS(Sym - GOT, Addend) 11 */ + R_HPPA_GOTOFF_RS14, /* RS(Sym - GOT, Addend) 14 */ + R_HPPA_GOTOFF_LD21, /* LD(Sym - GOT, Addend) 21 */ + R_HPPA_GOTOFF_RD11, /* RD(Sym - GOT, Addend) 11 */ + R_HPPA_GOTOFF_RD14, /* RD(Sym - GOT, Addend) 14 */ + R_HPPA_GOTOFF_LR21, /* LR(Sym - GOT, Addend) 21 */ + R_HPPA_GOTOFF_RR14, /* RR(Sym - GOT, Addend) 14 */ + + /* 9.3.6. Absolute call relocation types + + Relocations of 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_HPPA_ABS_CALL_11, /* Symbol + Addend 11 */ + R_HPPA_ABS_CALL_14, /* Symbol + Addend 14 */ + R_HPPA_ABS_CALL_17, /* Symbol + Addend 17 */ + R_HPPA_ABS_CALL_L21, /* L (Symbol, Addend) 21 */ + R_HPPA_ABS_CALL_R11, /* R (Symbol, Addend) 11 */ + R_HPPA_ABS_CALL_R14, /* R (Symbol, Addend) 14 */ + R_HPPA_ABS_CALL_R17, /* R (Symbol, Addend) 17 */ + R_HPPA_ABS_CALL_LS21, /* LS(Symbol, Addend) 21 */ + R_HPPA_ABS_CALL_RS11, /* RS(Symbol, Addend) 11 */ + R_HPPA_ABS_CALL_RS14, /* RS(Symbol, Addend) 14 */ + R_HPPA_ABS_CALL_RS17, /* RS(Symbol, Addend) 17 */ + R_HPPA_ABS_CALL_LD21, /* LD(Symbol, Addend) 21 */ + R_HPPA_ABS_CALL_RD11, /* RD(Symbol, Addend) 11 */ + R_HPPA_ABS_CALL_RD14, /* RD(Symbol, Addend) 14 */ + R_HPPA_ABS_CALL_RD17, /* RD(Symbol, Addend) 17 */ + R_HPPA_ABS_CALL_LR21, /* LR(Symbol, Addend) 21 */ + R_HPPA_ABS_CALL_RR14, /* RR(Symbol, Addend) 14 */ + R_HPPA_ABS_CALL_RR17, /* RR(Symbol, Addend) 17 */ + + /* 9.3.7. PC-relative call relocation types + + PC-relative relocation calculates the difference between an address + and the location being relocated. This is most often used to + relocate pc-relative calls. They are otherwise identical to + their corresponding absolute call relocations. */ + + R_HPPA_PCREL_CALL_11, /* Symbol - PC + Addend 11 */ + R_HPPA_PCREL_CALL_14, /* Symbol - PC + Addend 14 */ + R_HPPA_PCREL_CALL_17, /* Symbol - PC + Addend 17 */ + R_HPPA_PCREL_CALL_12, /* Symbol - PC + Addend 12 */ + R_HPPA_PCREL_CALL_L21, /* L (Symbol - PC, Addend) 21 */ + R_HPPA_PCREL_CALL_R11, /* R (Symbol - PC, Addend) 11 */ + R_HPPA_PCREL_CALL_R14, /* R (Symbol - PC, Addend) 14 */ + R_HPPA_PCREL_CALL_R17, /* R (Symbol - PC, Addend) 17 */ + R_HPPA_PCREL_CALL_LS21, /* LS(Symbol - PC, Addend) 21 */ + R_HPPA_PCREL_CALL_RS11, /* RS(Symbol - PC, Addend) 11 */ + R_HPPA_PCREL_CALL_RS14, /* RS(Symbol - PC, Addend) 14 */ + R_HPPA_PCREL_CALL_RS17, /* RS(Symbol - PC, Addend) 17 */ + R_HPPA_PCREL_CALL_LD21, /* LD(Symbol - PC, Addend) 21 */ + R_HPPA_PCREL_CALL_RD11, /* RD(Symbol - PC, Addend) 11 */ + R_HPPA_PCREL_CALL_RD14, /* RD(Symbol - PC, Addend) 14 */ + R_HPPA_PCREL_CALL_RD17, /* RD(Symbol - PC, Addend) 17 */ + R_HPPA_PCREL_CALL_LR21, /* LR(Symbol - PC, Addend) 21 */ + R_HPPA_PCREL_CALL_RR14, /* RR(Symbol - PC, Addend) 14 */ + R_HPPA_PCREL_CALL_RR17, /* RR(Symbol - PC, Addend) 17 */ + + /* 9.3.8. Plabel relocation types + + Plabels are designed to allow code pointers to be passed between + spaces. + + Plabels are procedure markers. They are used to denote relocations + which involve procedures (call, loading the address of a procedure, + etc). They are necessary for the proper functioning of argument + relocations. The addend of the relocation should be either 0 (no + static link) or 2 (static link required). These relocations + correspond to the P%, LP% and RP% field selectors. */ + + R_HPPA_PLABEL_32, /* F(Plabel(Symbol,Addend),0) 32 */ + R_HPPA_PLABEL_11, /* F(Plabel(Symbol,Addend),0) 11 */ + R_HPPA_PLABEL_14, /* F(Plabel(Symbol,Addend),0) 14 */ + R_HPPA_PLABEL_L21, /* L(Plabel(Symbol,Addend),0) 21 */ + R_HPPA_PLABEL_R11, /* R(Plabel(Symbol,Addend),0) 11 */ + R_HPPA_PLABEL_R14, /* R(Plabel(Symbol,Addend),0) 14 */ + + /* 9.3.9. 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_HPPA_DLT_32, /* F(DLTOFF) 32 */ + R_HPPA_DLT_11, /* F(DLTOFF) 11 */ + R_HPPA_DLT_14, /* F(DLTOFF) 14 */ + R_HPPA_DLT_L21, /* L(DLTOFF) 21 */ + R_HPPA_DLT_R11, /* R(DLTOFF) 11 */ + R_HPPA_DLT_R14, /* R(DLTOFF) 14 */ + + /* 9.3.10. Relocations for unwinder tables + + The unwinder table consists of a series of four-word entries, the + first two of which are a pair of code addresses. While it would be + possible to relocate this table using just R_HPPA_32, the amount of + relocation data resulting would be very large. To reduce that data, + the following relocation types have been defined. + + The first, R_HPPA_UNWIND_ENTRY, merely compresses two R_HPPA_32 + operations into one. It is designed for use in .rel-type + relocations, where the two 32-bit addends are taken from the unwind + section itself. + + The second, which is designed for use in .rela-type relocations, is + designed to relocate an entire unwinder table with one relocation + entry. It has the effect of multiple R_HPPA_UNWIND_ENTRY + relocations applied to successive unwinder table entries. The + number of entries to be relocated is given in the r_addend field of + the relocation entry. The rest of the relocation entry is used in + a normal way--r_offset is the offset of the first unwind entry in + the section, while ELF32_R_SYM(r_info) is the code section that all + the code addresses should be relocated from. + + Why can't we use begin/end markers + unwind description bits like + som? FIXME! */ + + R_HPPA_UNWIND_ENTRY, /* "128" */ + R_HPPA_UNWIND_ENTRIES, /* Addend * "128" */ + + /* 9.3.11. Relocation types for complex expressions + + New-format SOM fixups support complex expressions by spreading + the parts of the expression across multiple entries. ELF for + HPPA will have a similar mechanism, although support for it may + be optional. There are two main reasons for defining it: first, + the need to translate complex SOM fixup expressions to ELF, and + second, to cover combinations of expression, field and format not + available with other relocation types. + + ELF expression relocation entries are interpreted as postfix-form + expressions. They may be evaluated using a push-down stack. + + Usually, the addend field of these expression relocation entries is + unused, with the following exceptions: + + R_HPPA_PUSH_CONST: The addend field contains the constant. + + R_HPPA_PUSH_PROC: The high-order 10 bits of the addend field + contain parameter relocation information. The rest ofthe addend + field is unused. + + R_HPPA_LSHIFT, R_HPPA_ARITH_RSHIFT and R_HPPA_LOGIC_RSHIFT: + The addend field normally gives the amount to shift. + However, if that amount is zero, the shift amount is + popped from the top of the stack prior to popping the + amount to be shifted. */ + + R_HPPA_PUSH_CONST, /* push Addend - - */ + R_HPPA_PUSH_PC, /* push PC + Addend - - */ + R_HPPA_PUSH_SYM, /* push Symbol + Addend - - */ + R_HPPA_PUSH_GOTOFF, /* push Symbol - GOT + Addend - - */ + R_HPPA_PUSH_ABS_CALL, /* push Symbol + Addend - - */ + R_HPPA_PUSH_PCREL_CALL, /* push Symbol - PC + Addend - - */ + R_HPPA_PUSH_PLABEL, /* push Plabel(Symbol) - - */ + R_HPPA_MAX, /* pop A and B, push max(B,A) - - */ + R_HPPA_MIN, /* pop A and B, push min(B,A) - - */ + R_HPPA_ADD, /* pop A and B, push B + A - - */ + R_HPPA_SUB, /* pop A and B, push B - A - - */ + R_HPPA_MULT, /* pop A and B, push B * A - - */ + R_HPPA_DIV, /* pop A and B, push B / A - - */ + R_HPPA_MOD, /* pop A and B, push B % A - - */ + R_HPPA_AND, /* pop A and B, push B & A - - */ + R_HPPA_OR, /* pop A and B, push B | A - - */ + R_HPPA_XOR, /* pop A and B, push B ^ A - - */ + R_HPPA_NOT, /* pop A, push ~A - - */ + R_HPPA_LSHIFT, /* pop A, push A << Addend - - */ + R_HPPA_ARITH_RSHIFT, /* pop A, push A >> Addend - - */ + R_HPPA_LOGIC_RSHIFT, /* pop A, push A >> Addend - - */ + R_HPPA_EXPR_F, /* pop A, push A + Addend F - */ + R_HPPA_EXPR_L, /* pop A, push L(A,Addend) L - */ + R_HPPA_EXPR_R, /* pop A, push R(A,Addend) R - */ + R_HPPA_EXPR_LS, /* pop A, push LS(A,Addend) LS - */ + R_HPPA_EXPR_RS, /* pop A, push RS(A,Addend) RS - */ + R_HPPA_EXPR_LD, /* pop A, push LD(A,Addend) LD - */ + R_HPPA_EXPR_RD, /* pop A, push RD(A,Addend) RD - */ + R_HPPA_EXPR_LR, /* pop A, push LR(A,Addend) LR - */ + R_HPPA_EXPR_RR, /* pop A, push RR(A,Addend) RR - */ + R_HPPA_EXPR_32, /* pop - 32 */ + R_HPPA_EXPR_21, /* pop - 21 */ + R_HPPA_EXPR_11, /* pop - 11 */ + R_HPPA_EXPR_14, /* pop - 14 */ + R_HPPA_EXPR_17, /* pop - 17 */ + R_HPPA_EXPR_12, /* pop - 12 */ + R_HPPA_STUB_CALL_17, /* Symbol + Addend - 17 */ + R_HPPA_UNIMPLEMENTED /* N/A */ + } +elf32_hppa_reloc_type; #define ELF_HOWTO_TABLE_SIZE R_HPPA_UNIMPLEMENTED + 1 #define N_HPPA_RELOCS R_HPPA_UNIMPLEMENTED + 1 -/* Groups of relocations. Serves as an expression type. */ - -#define R_HPPA R_HPPA_32 -#define R_HPPA_GOTOFF R_HPPA_GOTOFF_11 -#define R_HPPA_ABS_CALL R_HPPA_ABS_CALL_11 -#define R_HPPA_PCREL_CALL R_HPPA_PCREL_CALL_11 -#define R_HPPA_PLABEL R_HPPA_PLABEL_32 -#define R_HPPA_DLT R_HPPA_DLT_32 -#define R_HPPA_UNWIND R_HPPA_UNWIND_ENTRY +/* 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. + + The idea is both SOM and ELF define these basic 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 R_HPPA_32 +#define R_HPPA_GOTOFF R_HPPA_GOTOFF_11 +#define R_HPPA_ABS_CALL R_HPPA_ABS_CALL_11 +#define R_HPPA_PCREL_CALL R_HPPA_PCREL_CALL_11 +#define R_HPPA_PLABEL R_HPPA_PLABEL_32 +#define R_HPPA_DLT R_HPPA_DLT_32 +#define R_HPPA_UNWIND R_HPPA_UNWIND_ENTRY #define R_HPPA_COMPLEX R_HPPA_PUSH_CONST #define R_HPPA_COMPLEX_PCREL_CALL R_HPPA_PUSH_CONST + 1 #define R_HPPA_COMPLEX_ABS_CALL R_HPPA_PUSH_CONST + 2 - -/* PA-RISC OPCODES */ - -#define get_opcode(insn) ((insn) & 0xfc000000) >> 26 - -/* XXX: this list is incomplete */ - -#define LDO 0x0d -#define LDB 0x10 -#define LDH 0x11 -#define LDW 0x12 -#define LDWM 0x13 -#define STB 0x18 -#define STH 0x19 -#define STW 0x1a -#define STWM 0x1b -#define COMICLR 0x24 -#define SUBI 0x25 -#define SUBIO 0x25 -#define ADDIT 0x2c -#define ADDITO 0x2c -#define ADDI 0x2d -#define ADDIO 0x2d -#define LDIL 0x08 -#define ADDIL 0x0a - -#define MOVB 0x32 -#define MOVIB 0x33 -#define COMBT 0x20 -#define COMBF 0x22 -#define COMIBT 0x21 -#define COMIBF 0x23 -#define ADDBT 0x28 -#define ADDBF 0x2a -#define ADDIBT 0x29 -#define ADDIBF 0x2b -#define BVB 0x30 -#define BB 0x31 - -#define BL 0x3a -#define BLE 0x39 -#define BE 0x38 - -#ifdef __STDC__ -elf32_hppa_reloc_type **hppa_elf_gen_reloc_type (bfd * abfd, elf32_hppa_reloc_type base_type, int format, int field); -#else -elf32_hppa_reloc_type **hppa_elf_gen_reloc_type (); -#endif - -/* - * HPPA Section types - */ - +/* HPPA Section types */ #define SHT_HPPA_SYMEXTN SHT_LOPROC - -/* - * HPPA Symbol types - */ - +/* HPPA Symbol types */ #define STT_HPPA_PLABEL STT_LOPROC +/* HPPA symbol table extension entry types */ +enum elf32_hppa_symextn_types +{ + HPPA_SXT_NULL, + HPPA_SXT_SYMNDX, + HPPA_SXT_ARG_RELOC, +}; -/* - * HPPA symbol table extension entry types - */ - -#define HPPA_SXT_NULL 0x00 -#define HPPA_SXT_SYMNDX 0x01 -#define HPPA_SXT_ARG_RELOC 0x02 - -/* - * These macros compose and decompose the value of a symextn entry: - * - * entry_type = ELF32_HPPA_SX_TYPE(word); - * entry_value = ELF32_HPPA_SX_VAL(word); - * word = ELF32_HPPA_SX_WORD(type,val); - * Se.hppa_se_info = ELF32_HPPA_SE_INFO(arg_reloc) - */ +/* These macros compose and decompose the value of a symextn entry: + + entry_type = ELF32_HPPA_SX_TYPE(word); + entry_value = ELF32_HPPA_SX_VAL(word); + word = ELF32_HPPA_SX_WORD(type,val); */ #define ELF32_HPPA_SX_TYPE(p) ((p) >> 24) #define ELF32_HPPA_SX_VAL(p) ((p) & 0xFFFFFF) @@ -399,20 +326,29 @@ elf32_hppa_reloc_type **hppa_elf_gen_reloc_type (); the symbol and string table sections have been allocated, and the symbol table has been built. */ -#define ELF_TC_FAKE_SECTIONS 1 /* # of "hand_made" tc-specific sections */ +/* Number of "hand-made" target specific sections. */ +#define ELF_TC_FAKE_SECTIONS 1 #define SYMEXTN_SECTION_NAME ".hppa_symextn" -extern void elf_hppa_tc_symbol PARAMS ((bfd *, elf32_symbol_type *, int)); -extern void elf_hppa_tc_make_sections PARAMS ((bfd *, PTR)); - +/* 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 Elf32_Word symext_entryS; - struct symext_chain -{ - symext_entryS entry; - struct symext_chain *next; -}; + { + symext_entryS entry; + struct symext_chain *next; + }; typedef struct symext_chain symext_chainS; +void elf_hppa_tc_symbol PARAMS ((bfd *, elf_symbol_type *, int, + symext_chainS **, symext_chainS **)); +void elf_hppa_tc_make_sections PARAMS ((bfd *, symext_chainS *)); +void hppa_elf_stub_finish PARAMS ((bfd *)); +elf32_hppa_reloc_type **hppa_elf_gen_reloc_type PARAMS ((bfd *, + elf32_hppa_reloc_type, + int, int)); +void elf_hppa_final_processing PARAMS ((void)); + #endif /* _ELF32_HPPA_H */ |