| /* Support for 32-bit SPARC NLM (NetWare Loadable Module) |
| Copyright 1993, 1994, 2000, 2001 Free Software Foundation, Inc. |
| |
| 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 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| |
| #include "bfd.h" |
| #include "sysdep.h" |
| #include "libbfd.h" |
| |
| #define ARCH_SIZE 32 |
| |
| #include "nlm/sparc32-ext.h" |
| #define Nlm_External_Fixed_Header Nlm32_sparc_External_Fixed_Header |
| |
| #include "libnlm.h" |
| |
| static boolean nlm_sparc_read_reloc |
| PARAMS ((bfd *, nlmNAME(symbol_type) *, asection **, arelent *)); |
| static boolean nlm_sparc_write_reloc |
| PARAMS ((bfd *, asection *, arelent *)); |
| static boolean nlm_sparc_mangle_relocs |
| PARAMS ((bfd *, asection *, PTR, bfd_vma, bfd_size_type)); |
| static boolean nlm_sparc_read_import |
| PARAMS ((bfd *, nlmNAME(symbol_type) *)); |
| static boolean nlm_sparc_write_import |
| PARAMS ((bfd *, asection *, arelent *)); |
| static boolean nlm_sparc_write_external |
| PARAMS ((bfd *, bfd_size_type, asymbol *, struct reloc_and_sec *)); |
| static boolean nlm_sparc_write_export |
| PARAMS ((bfd *, asymbol *, bfd_vma)); |
| |
| enum reloc_type |
| { |
| R_SPARC_NONE = 0, |
| R_SPARC_8, R_SPARC_16, R_SPARC_32, |
| R_SPARC_DISP8, R_SPARC_DISP16, R_SPARC_DISP32, |
| R_SPARC_WDISP30, R_SPARC_WDISP22, |
| R_SPARC_HI22, R_SPARC_22, |
| R_SPARC_13, R_SPARC_LO10, |
| R_SPARC_GOT10, R_SPARC_GOT13, R_SPARC_GOT22, |
| R_SPARC_PC10, R_SPARC_PC22, |
| R_SPARC_WPLT30, |
| R_SPARC_COPY, |
| R_SPARC_GLOB_DAT, R_SPARC_JMP_SLOT, |
| R_SPARC_RELATIVE, |
| R_SPARC_UA32, |
| R_SPARC_max |
| }; |
| |
| #if 0 |
| static const char *const reloc_type_names[] = |
| { |
| "R_SPARC_NONE", |
| "R_SPARC_8", "R_SPARC_16", "R_SPARC_32", |
| "R_SPARC_DISP8", "R_SPARC_DISP16", "R_SPARC_DISP32", |
| "R_SPARC_WDISP30", "R_SPARC_WDISP22", |
| "R_SPARC_HI22", "R_SPARC_22", |
| "R_SPARC_13", "R_SPARC_LO10", |
| "R_SPARC_GOT10", "R_SPARC_GOT13", "R_SPARC_GOT22", |
| "R_SPARC_PC10", "R_SPARC_PC22", |
| "R_SPARC_WPLT30", |
| "R_SPARC_COPY", |
| "R_SPARC_GLOB_DAT", "R_SPARC_JMP_SLOT", |
| "R_SPARC_RELATIVE", |
| "R_SPARC_UA32", |
| }; |
| #endif |
| |
| static reloc_howto_type nlm32_sparc_howto_table[] = |
| { |
| HOWTO (R_SPARC_NONE, 0,0, 0,false,0,complain_overflow_dont, 0,"R_SPARC_NONE", false,0,0x00000000,true), |
| HOWTO (R_SPARC_8, 0,0, 8,false,0,complain_overflow_bitfield,0,"R_SPARC_8", false,0,0x000000ff,true), |
| HOWTO (R_SPARC_16, 0,1,16,false,0,complain_overflow_bitfield,0,"R_SPARC_16", false,0,0x0000ffff,true), |
| HOWTO (R_SPARC_32, 0,2,32,false,0,complain_overflow_bitfield,0,"R_SPARC_32", false,0,0xffffffff,true), |
| HOWTO (R_SPARC_DISP8, 0,0, 8,true, 0,complain_overflow_signed, 0,"R_SPARC_DISP8", false,0,0x000000ff,true), |
| HOWTO (R_SPARC_DISP16, 0,1,16,true, 0,complain_overflow_signed, 0,"R_SPARC_DISP16", false,0,0x0000ffff,true), |
| HOWTO (R_SPARC_DISP32, 0,2,32,true, 0,complain_overflow_signed, 0,"R_SPARC_DISP32", false,0,0x00ffffff,true), |
| HOWTO (R_SPARC_WDISP30, 2,2,30,true, 0,complain_overflow_signed, 0,"R_SPARC_WDISP30", false,0,0x3fffffff,true), |
| HOWTO (R_SPARC_WDISP22, 2,2,22,true, 0,complain_overflow_signed, 0,"R_SPARC_WDISP22", false,0,0x003fffff,true), |
| HOWTO (R_SPARC_HI22, 10,2,22,false,0,complain_overflow_dont, 0,"R_SPARC_HI22", false,0,0x003fffff,true), |
| HOWTO (R_SPARC_22, 0,2,22,false,0,complain_overflow_bitfield,0,"R_SPARC_22", false,0,0x003fffff,true), |
| HOWTO (R_SPARC_13, 0,2,13,false,0,complain_overflow_bitfield,0,"R_SPARC_13", false,0,0x00001fff,true), |
| HOWTO (R_SPARC_LO10, 0,2,10,false,0,complain_overflow_dont, 0,"R_SPARC_LO10", false,0,0x000003ff,true), |
| HOWTO (R_SPARC_GOT10, 0,2,10,false,0,complain_overflow_bitfield,0,"R_SPARC_GOT10", false,0,0x000003ff,true), |
| HOWTO (R_SPARC_GOT13, 0,2,13,false,0,complain_overflow_bitfield,0,"R_SPARC_GOT13", false,0,0x00001fff,true), |
| HOWTO (R_SPARC_GOT22, 10,2,22,false,0,complain_overflow_bitfield,0,"R_SPARC_GOT22", false,0,0x003fffff,true), |
| HOWTO (R_SPARC_PC10, 0,2,10,false,0,complain_overflow_bitfield,0,"R_SPARC_PC10", false,0,0x000003ff,true), |
| HOWTO (R_SPARC_PC22, 0,2,22,false,0,complain_overflow_bitfield,0,"R_SPARC_PC22", false,0,0x003fffff,true), |
| HOWTO (R_SPARC_WPLT30, 0,0,00,false,0,complain_overflow_dont, 0,"R_SPARC_WPLT30", false,0,0x00000000,true), |
| HOWTO (R_SPARC_COPY, 0,0,00,false,0,complain_overflow_dont, 0,"R_SPARC_COPY", false,0,0x00000000,true), |
| HOWTO (R_SPARC_GLOB_DAT,0,0,00,false,0,complain_overflow_dont, 0,"R_SPARC_GLOB_DAT",false,0,0x00000000,true), |
| HOWTO (R_SPARC_JMP_SLOT,0,0,00,false,0,complain_overflow_dont, 0,"R_SPARC_JMP_SLOT",false,0,0x00000000,true), |
| HOWTO (R_SPARC_RELATIVE,0,0,00,false,0,complain_overflow_dont, 0,"R_SPARC_RELATIVE",false,0,0x00000000,true), |
| HOWTO (R_SPARC_UA32, 0,0,00,false,0,complain_overflow_dont, 0,"R_SPARC_UA32", false,0,0x00000000,true), |
| }; |
| |
| /* Read a NetWare sparc reloc. */ |
| |
| struct nlm32_sparc_reloc_ext |
| { |
| unsigned char offset[4]; |
| unsigned char addend[4]; |
| unsigned char type[1]; |
| unsigned char pad1[3]; |
| }; |
| |
| static boolean |
| nlm_sparc_read_reloc (abfd, sym, secp, rel) |
| bfd *abfd; |
| nlmNAME(symbol_type) *sym ATTRIBUTE_UNUSED; |
| asection **secp; |
| arelent *rel; |
| { |
| bfd_vma val, addend; |
| unsigned int index; |
| unsigned int type; |
| struct nlm32_sparc_reloc_ext tmp_reloc; |
| asection *code_sec, *data_sec; |
| |
| if (bfd_bread (&tmp_reloc, (bfd_size_type) 12, abfd) != 12) |
| return false; |
| |
| code_sec = bfd_get_section_by_name (abfd, NLM_CODE_NAME); |
| data_sec = bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME); |
| |
| *secp = code_sec; |
| |
| val = bfd_get_32 (abfd, tmp_reloc.offset); |
| addend = bfd_get_32 (abfd, tmp_reloc.addend); |
| type = bfd_get_8 (abfd, tmp_reloc.type); |
| |
| rel->address = val; |
| rel->addend = addend; |
| rel->howto = NULL; |
| |
| for (index = 0; |
| index < sizeof (nlm32_sparc_howto_table) / sizeof (reloc_howto_type); |
| index++) |
| if (nlm32_sparc_howto_table[index].type == type) |
| { |
| rel->howto = &nlm32_sparc_howto_table[index]; |
| break; |
| } |
| |
| #ifdef DEBUG |
| fprintf (stderr, "%s: address = %08lx, addend = %08lx, type = %d, howto = %08lx\n", |
| __FUNCTION__, rel->address, rel->addend, type, rel->howto); |
| #endif |
| return true; |
| |
| } |
| |
| /* Write a NetWare sparc reloc. */ |
| |
| static boolean |
| nlm_sparc_write_reloc (abfd, sec, rel) |
| bfd *abfd; |
| asection *sec; |
| arelent *rel; |
| { |
| bfd_vma val; |
| struct nlm32_sparc_reloc_ext tmp_reloc; |
| unsigned int index; |
| int type = -1; |
| reloc_howto_type *tmp; |
| |
| for (index = 0; |
| index < sizeof (nlm32_sparc_howto_table) / sizeof (reloc_howto_type); |
| index++) |
| { |
| tmp = &nlm32_sparc_howto_table[index]; |
| |
| if (tmp->rightshift == rel->howto->rightshift |
| && tmp->size == rel->howto->size |
| && tmp->bitsize == rel->howto->bitsize |
| && tmp->pc_relative == rel->howto->pc_relative |
| && tmp->bitpos == rel->howto->bitpos |
| && tmp->src_mask == rel->howto->src_mask |
| && tmp->dst_mask == rel->howto->dst_mask) |
| { |
| type = tmp->type; |
| break; |
| } |
| } |
| if (type == -1) |
| abort (); |
| |
| /* Netware wants a list of relocs for each address. |
| Format is: |
| long offset |
| long addend |
| char type |
| That should be it. */ |
| |
| /* The value we write out is the offset into the appropriate |
| segment. This offset is the section vma, adjusted by the vma of |
| the lowest section in that segment, plus the address of the |
| relocation. */ |
| #if 0 |
| val = bfd_get_section_vma (abfd, (*rel->sym_ptr_ptr)->section) + rel->address; |
| #else |
| val = bfd_get_section_vma (abfd, sec) + rel->address; |
| #endif |
| |
| #ifdef DEBUG |
| fprintf (stderr, "%s: val = %08lx, addend = %08lx, type = %d\n", |
| __FUNCTION__, val, rel->addend, rel->howto->type); |
| #endif |
| bfd_put_32 (abfd, val, tmp_reloc.offset); |
| bfd_put_32 (abfd, rel->addend, tmp_reloc.addend); |
| bfd_put_8 (abfd, (short) (rel->howto->type), tmp_reloc.type); |
| |
| if (bfd_bwrite (&tmp_reloc, (bfd_size_type) 12, abfd) != 12) |
| return false; |
| |
| return true; |
| } |
| |
| /* Mangle relocs for SPARC NetWare. We can just use the standard |
| SPARC relocs. */ |
| |
| static boolean |
| nlm_sparc_mangle_relocs (abfd, sec, data, offset, count) |
| bfd *abfd ATTRIBUTE_UNUSED; |
| asection *sec ATTRIBUTE_UNUSED; |
| PTR data ATTRIBUTE_UNUSED; |
| bfd_vma offset ATTRIBUTE_UNUSED; |
| bfd_size_type count ATTRIBUTE_UNUSED; |
| { |
| return true; |
| } |
| |
| /* Read a NetWare sparc import record. */ |
| |
| static boolean |
| nlm_sparc_read_import (abfd, sym) |
| bfd *abfd; |
| nlmNAME(symbol_type) *sym; |
| { |
| struct nlm_relent *nlm_relocs; /* Relocation records for symbol. */ |
| bfd_size_type rcount; /* Number of relocs. */ |
| bfd_byte temp[NLM_TARGET_LONG_SIZE]; /* Temporary 32-bit value. */ |
| unsigned char symlength; /* Length of symbol name. */ |
| char *name; |
| |
| /* First, read in the number of relocation |
| entries for this symbol. */ |
| if (bfd_bread ((PTR) temp, (bfd_size_type) 4, abfd) != 4) |
| return false; |
| |
| rcount = bfd_get_32 (abfd, temp); |
| |
| /* Next, read in the length of the symbol. */ |
| |
| if (bfd_bread ((PTR) &symlength, (bfd_size_type) sizeof (symlength), abfd) |
| != sizeof (symlength)) |
| return false; |
| sym -> symbol.the_bfd = abfd; |
| name = bfd_alloc (abfd, (bfd_size_type) symlength + 1); |
| if (name == NULL) |
| return false; |
| |
| /* Then read in the symbol. */ |
| |
| if (bfd_bread (name, (bfd_size_type) symlength, abfd) != symlength) |
| return false; |
| name[symlength] = '\0'; |
| sym -> symbol.name = name; |
| sym -> symbol.flags = 0; |
| sym -> symbol.value = 0; |
| sym -> symbol.section = bfd_und_section_ptr; |
| |
| /* Next, start reading in the relocs. */ |
| |
| nlm_relocs = ((struct nlm_relent *) |
| bfd_alloc (abfd, rcount * sizeof (struct nlm_relent))); |
| if (!nlm_relocs) |
| return false; |
| sym -> relocs = nlm_relocs; |
| sym -> rcnt = 0; |
| while (sym -> rcnt < rcount) |
| { |
| asection *section; |
| |
| if (nlm_sparc_read_reloc (abfd, sym, §ion, |
| &nlm_relocs -> reloc) |
| == false) |
| return false; |
| nlm_relocs -> section = section; |
| nlm_relocs++; |
| sym -> rcnt++; |
| } |
| |
| return true; |
| } |
| |
| static boolean |
| nlm_sparc_write_import (abfd, sec, rel) |
| bfd *abfd; |
| asection *sec; |
| arelent *rel; |
| { |
| char temp[4]; |
| asection *code, *data, *bss, *symsec; |
| bfd_vma base; |
| |
| code = bfd_get_section_by_name (abfd, NLM_CODE_NAME); |
| data = bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME); |
| bss = bfd_get_section_by_name (abfd, NLM_UNINITIALIZED_DATA_NAME); |
| symsec = (*rel->sym_ptr_ptr)->section; |
| |
| if (symsec == code) |
| base = 0; |
| else if (symsec == data) |
| base = bfd_section_size (abfd, code); |
| else if (symsec == bss) |
| base = bfd_section_size (abfd, code) + bfd_section_size (abfd, data); |
| else |
| base = 0; |
| |
| #ifdef DEBUG |
| fprintf (stderr, "%s: <%x, 1>\n\t", |
| __FUNCTION__, base + (*rel->sym_ptr_ptr)->value); |
| #endif |
| bfd_put_32 (abfd, base + (*rel->sym_ptr_ptr)->value, temp); |
| if (bfd_bwrite ((PTR) temp, (bfd_size_type) 4, abfd) != 4) |
| return false; |
| bfd_put_32 (abfd, (bfd_vma) 1, temp); |
| if (bfd_bwrite ((PTR) temp, (bfd_size_type) 4, abfd) != 4) |
| return false; |
| if (nlm_sparc_write_reloc (abfd, sec, rel) == false) |
| return false; |
| return true; |
| } |
| |
| /* Write out an external reference. */ |
| |
| static boolean |
| nlm_sparc_write_external (abfd, count, sym, relocs) |
| bfd *abfd; |
| bfd_size_type count; |
| asymbol *sym; |
| struct reloc_and_sec *relocs; |
| { |
| unsigned int i; |
| bfd_byte len; |
| unsigned char temp[NLM_TARGET_LONG_SIZE]; |
| |
| bfd_put_32 (abfd, count, temp); |
| if (bfd_bwrite (temp, (bfd_size_type) sizeof (temp), abfd) != sizeof (temp)) |
| return false; |
| |
| len = strlen (sym->name); |
| if ((bfd_bwrite (&len, (bfd_size_type) sizeof (bfd_byte), abfd) |
| != sizeof (bfd_byte)) |
| || bfd_bwrite (sym->name, (bfd_size_type) len, abfd) != len) |
| return false; |
| |
| for (i = 0; i < count; i++) |
| { |
| if (nlm_sparc_write_reloc (abfd, relocs[i].sec, |
| relocs[i].rel) == false) |
| return false; |
| } |
| |
| return true; |
| } |
| |
| static boolean |
| nlm_sparc_write_export (abfd, sym, value) |
| bfd *abfd; |
| asymbol *sym; |
| bfd_vma value; |
| { |
| bfd_byte len; |
| bfd_byte temp[4]; |
| |
| #ifdef DEBUG |
| fprintf (stderr, "%s: <%x, %d, %s>\n", |
| __FUNCTION__, value, strlen (sym->name), sym->name); |
| #endif |
| bfd_put_32 (abfd, value, temp); |
| len = strlen (sym->name); |
| |
| if (bfd_bwrite (temp, (bfd_size_type) 4, abfd) != 4 |
| || bfd_bwrite (&len, (bfd_size_type) 1, abfd) != 1 |
| || bfd_bwrite (sym->name, (bfd_size_type) len, abfd) != len) |
| return false; |
| |
| return true; |
| } |
| |
| #undef nlm_swap_fixed_header_in |
| #undef nlm_swap_fixed_header_out |
| |
| #include "nlmswap.h" |
| |
| static const struct nlm_backend_data nlm32_sparc_backend = |
| { |
| "NetWare SPARC Module \032", |
| sizeof (Nlm32_sparc_External_Fixed_Header), |
| 0, /* optional_prefix_size */ |
| bfd_arch_sparc, |
| 0, |
| false, |
| 0, /* backend_object_p */ |
| 0, /* write_prefix_func */ |
| nlm_sparc_read_reloc, |
| nlm_sparc_mangle_relocs, |
| nlm_sparc_read_import, |
| nlm_sparc_write_import, |
| 0, /* set_public_section */ |
| 0, /* get_public_offset */ |
| nlm_swap_fixed_header_in, |
| nlm_swap_fixed_header_out, |
| nlm_sparc_write_external, |
| nlm_sparc_write_export |
| }; |
| |
| #define TARGET_BIG_NAME "nlm32-sparc" |
| #define TARGET_BIG_SYM nlmNAME(sparc_vec) |
| #define TARGET_BACKEND_DATA & nlm32_sparc_backend |
| |
| #include "nlm-target.h" |