diff options
Diffstat (limited to 'bfd/nlm32-ppc.c')
| -rw-r--r-- | bfd/nlm32-ppc.c | 914 |
1 files changed, 427 insertions, 487 deletions
diff --git a/bfd/nlm32-ppc.c b/bfd/nlm32-ppc.c index 0d23987..6b35249 100644 --- a/bfd/nlm32-ppc.c +++ b/bfd/nlm32-ppc.c @@ -1,22 +1,22 @@ /* Support for 32-bit PowerPC NLM (NetWare Loadable Module) - Copyright 1994, 1995, 1999, 2000, 2001, 2002, 2003, 2004 - Free Software Foundation, Inc. + Copyright 1994, 1995, 1999, 2000, 2001, 2002, 2003, 2004, + 2005 Free Software Foundation, Inc. -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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "bfd.h" #include "sysdep.h" @@ -31,37 +31,6 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #define Nlm_External_Fixed_Header Nlm32_powerpc_External_Fixed_Header #include "libnlm.h" - -#ifdef OLDFORMAT -static bfd_boolean nlm_powerpc_backend_object_p - PARAMS ((bfd *)); -static bfd_boolean nlm_powerpc_write_prefix - PARAMS ((bfd *)); -#endif - -static bfd_boolean nlm_powerpc_read_reloc - PARAMS ((bfd *, nlmNAME(symbol_type) *, asection **, arelent *)); -static bfd_boolean nlm_powerpc_mangle_relocs - PARAMS ((bfd *, asection *, const PTR, bfd_vma, bfd_size_type)); -static bfd_boolean nlm_powerpc_read_import - PARAMS ((bfd *, nlmNAME(symbol_type) *)); - -#ifdef OLDFORMAT -static bfd_boolean nlm_powerpc_write_reloc - PARAMS ((bfd *, asection *, arelent *, int)); -#endif - -static bfd_boolean nlm_powerpc_write_import - PARAMS ((bfd *, asection *, arelent *)); -static bfd_boolean nlm_powerpc_write_external - PARAMS ((bfd *, bfd_size_type, asymbol *, struct reloc_and_sec *)); - -#ifndef OLDFORMAT -static bfd_boolean nlm_powerpc_set_public_section - PARAMS ((bfd *, nlmNAME(symbol_type) *)); -static bfd_vma nlm_powerpc_get_public_offset - PARAMS ((bfd *, asymbol *)); -#endif #ifdef OLDFORMAT @@ -72,12 +41,11 @@ static bfd_vma nlm_powerpc_get_public_offset the location before the regular NLM header. */ static bfd_boolean -nlm_powerpc_backend_object_p (abfd) - bfd *abfd; +nlm_powerpc_backend_object_p (bfd *abfd) { struct nlm32_powerpc_external_prefix_header s; - if (bfd_bread ((PTR) &s, (bfd_size_type) sizeof s, abfd) != sizeof s) + if (bfd_bread (& s, (bfd_size_type) sizeof s, abfd) != sizeof s) return FALSE; if (memcmp (s.signature, NLM32_POWERPC_SIGNATURE, sizeof s.signature) != 0 @@ -90,8 +58,7 @@ nlm_powerpc_backend_object_p (abfd) /* Write out the prefix. */ static bfd_boolean -nlm_powerpc_write_prefix (abfd) - bfd *abfd; +nlm_powerpc_write_prefix (bfd *abfd) { struct nlm32_powerpc_external_prefix_header s; @@ -102,97 +69,12 @@ nlm_powerpc_write_prefix (abfd) /* FIXME: What should we do about the date? */ - if (bfd_bwrite ((PTR) &s, (bfd_size_type) sizeof s, abfd) != sizeof s) - return FALSE; - - return TRUE; -} - -#endif /* OLDFORMAT */ - -#ifndef OLDFORMAT - -/* There is only one type of reloc in a PowerPC NLM. */ - -static reloc_howto_type nlm_powerpc_howto = - HOWTO (0, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - 0, /* special_function */ - "32", /* name */ - TRUE, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE); /* pcrel_offset */ - -/* Read a PowerPC NLM reloc. */ - -static bfd_boolean -nlm_powerpc_read_reloc (abfd, sym, secp, rel) - bfd *abfd; - nlmNAME(symbol_type) *sym; - asection **secp; - arelent *rel; -{ - bfd_byte temp[4]; - bfd_vma val; - const char *name; - - if (bfd_bread (temp, (bfd_size_type) sizeof (temp), abfd) != sizeof (temp)) + if (bfd_bwrite (& s, (bfd_size_type) sizeof s, abfd) != sizeof s) return FALSE; - val = bfd_get_32 (abfd, temp); - - /* The value is a word offset into either the code or data segment. - This is the location which needs to be adjusted. - - The high bit is 0 if the value is an offset into the data - segment, or 1 if the value is an offset into the text segment. - - If this is a relocation fixup rather than an imported symbol (the - sym argument is NULL), then the second most significant bit is 0 - if the address of the data segment should be added to the - location addressed by the value, or 1 if the address of the text - segment should be added. - - If this is an imported symbol, the second most significant bit is - not used and must be 0. */ - - if ((val & NLM_HIBIT) == 0) - name = NLM_INITIALIZED_DATA_NAME; - else - { - name = NLM_CODE_NAME; - val &=~ NLM_HIBIT; - } - *secp = bfd_get_section_by_name (abfd, name); - - if (sym == NULL) - { - if ((val & (NLM_HIBIT >> 1)) == 0) - name = NLM_INITIALIZED_DATA_NAME; - else - { - name = NLM_CODE_NAME; - val &=~ (NLM_HIBIT >> 1); - } - rel->sym_ptr_ptr = bfd_get_section_by_name (abfd, name)->symbol_ptr_ptr; - } - - rel->howto = &nlm_powerpc_howto; - - rel->address = val << 2; - rel->addend = 0; - return TRUE; } -#else /* OLDFORMAT */ - /* This reloc handling is only applicable to the old format. */ /* How to process the various reloc types. PowerPC NLMs use XCOFF @@ -201,345 +83,345 @@ nlm_powerpc_read_reloc (abfd, sym, secp, rel) static reloc_howto_type nlm_powerpc_howto_table[] = { /* Standard 32 bit relocation. */ - HOWTO (0, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - 0, /* special_function */ - "R_POS", /* name */ - TRUE, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (0, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 32, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_POS", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffffffff, /* Source mask. */ + 0xffffffff, /* Dest mask. */ + FALSE), /* PC rel offset. */ /* 32 bit relocation, but store negative value. */ - HOWTO (1, /* type */ - 0, /* rightshift */ - -2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - 0, /* special_function */ - "R_NEG", /* name */ - TRUE, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (1, /* Type. */ + 0, /* Rightshift. */ + -2, /* Size (0 = byte, 1 = short, 2 = long). */ + 32, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_NEG", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffffffff, /* Source mask. */ + 0xffffffff, /* Dest mask. */ + FALSE), /* PC rel offset. */ /* 32 bit PC relative relocation. */ - HOWTO (2, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - 0, /* special_function */ - "R_REL", /* name */ - TRUE, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (2, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 32, /* Bitsize. */ + TRUE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_signed, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_REL", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffffffff, /* Source mask. */ + 0xffffffff, /* Dest mask. */ + FALSE), /* PC rel offset. */ /* 16 bit TOC relative relocation. */ - HOWTO (3, /* type */ - 0, /* rightshift */ - 1, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - 0, /* special_function */ - "R_TOC", /* name */ - TRUE, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (3, /* Type. */ + 0, /* Rightshift. */ + 1, /* Size (0 = byte, 1 = short, 2 = long). */ + 16, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_signed, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_TOC", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffff, /* Source mask. */ + 0xffff, /* Dest mask. */ + FALSE), /* PC rel offset. */ /* I don't really know what this is. */ - HOWTO (4, /* type */ - 1, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - 0, /* special_function */ - "R_RTB", /* name */ - TRUE, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (4, /* Type. */ + 1, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 32, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_RTB", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffffffff, /* Source mask. */ + 0xffffffff, /* Dest mask. */ + FALSE), /* PC rel offset. */ /* External TOC relative symbol. */ - HOWTO (5, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - 0, /* special_function */ - "R_GL", /* name */ - TRUE, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (5, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 16, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_GL", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffff, /* Source mask. */ + 0xffff, /* Dest mask. */ + FALSE), /* PC rel offset. */ /* Local TOC relative symbol. */ - HOWTO (6, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - 0, /* special_function */ - "R_TCL", /* name */ - TRUE, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (6, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 16, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_TCL", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffff, /* Source mask. */ + 0xffff, /* Dest mask. */ + FALSE), /* PC rel offset. */ { 7 }, /* Non modifiable absolute branch. */ - HOWTO (8, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - 0, /* special_function */ - "R_BA", /* name */ - TRUE, /* partial_inplace */ - 0x3fffffc, /* src_mask */ - 0x3fffffc, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (8, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 26, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_BA", /* Name. */ + TRUE, /* Partial_inplace. */ + 0x3fffffc, /* Source mask. */ + 0x3fffffc, /* Dest mask. */ + FALSE), /* PC rel offset. */ { 9 }, /* Non modifiable relative branch. */ - HOWTO (0xa, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - TRUE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - 0, /* special_function */ - "R_BR", /* name */ - TRUE, /* partial_inplace */ - 0x3fffffc, /* src_mask */ - 0x3fffffc, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (0xa, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 26, /* Bitsize. */ + TRUE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_signed, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_BR", /* Name. */ + TRUE, /* Partial_inplace. */ + 0x3fffffc, /* Source mask. */ + 0x3fffffc, /* Dest mask. */ + FALSE), /* PC rel offset. */ { 0xb }, /* Indirect load. */ - HOWTO (0xc, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - 0, /* special_function */ - "R_RL", /* name */ - TRUE, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (0xc, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 16, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_RL", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffff, /* Source mask. */ + 0xffff, /* Dest mask. */ + FALSE), /* PC rel offset. */ /* Load address. */ - HOWTO (0xd, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - 0, /* special_function */ - "R_RLA", /* name */ - TRUE, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (0xd, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 16, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_RLA", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffff, /* Source mask. */ + 0xffff, /* Dest mask. */ + FALSE), /* PC rel offset. */ { 0xe }, /* Non-relocating reference. */ - HOWTO (0xf, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - 0, /* special_function */ - "R_REF", /* name */ - FALSE, /* partial_inplace */ - 0, /* src_mask */ - 0, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (0xf, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 32, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_REF", /* Name. */ + FALSE, /* Partial_inplace. */ + 0, /* Source mask. */ + 0, /* Dest mask. */ + FALSE), /* PC rel offset. */ { 0x10 }, { 0x11 }, /* TOC relative indirect load. */ - HOWTO (0x12, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - 0, /* special_function */ - "R_TRL", /* name */ - TRUE, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (0x12, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 16, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_TRL", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffff, /* Source mask. */ + 0xffff, /* Dest mask. */ + FALSE), /* PC rel offset. */ /* TOC relative load address. */ - HOWTO (0x13, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - 0, /* special_function */ - "R_TRLA", /* name */ - TRUE, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (0x13, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 16, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_TRLA", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffff, /* Source mask. */ + 0xffff, /* Dest mask. */ + FALSE), /* PC rel offset. */ /* Modifiable relative branch. */ - HOWTO (0x14, /* type */ - 1, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - 0, /* special_function */ - "R_RRTBI", /* name */ - TRUE, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (0x14, /* Type. */ + 1, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 32, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_RRTBI", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffffffff, /* Source mask. */ + 0xffffffff, /* Dest mask. */ + FALSE), /* PC rel offset. */ /* Modifiable absolute branch. */ - HOWTO (0x15, /* type */ - 1, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 32, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - 0, /* special_function */ - "R_RRTBA", /* name */ - TRUE, /* partial_inplace */ - 0xffffffff, /* src_mask */ - 0xffffffff, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (0x15, /* Type. */ + 1, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 32, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_RRTBA", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffffffff, /* Source mask. */ + 0xffffffff, /* Dest mask. */ + FALSE), /* PC rel offset. */ /* Modifiable call absolute indirect. */ - HOWTO (0x16, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - 0, /* special_function */ - "R_CAI", /* name */ - TRUE, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (0x16, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 16, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_CAI", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffff, /* Source mask. */ + 0xffff, /* Dest mask. */ + FALSE), /* PC rel offset. */ /* Modifiable call relative. */ - HOWTO (0x17, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - 0, /* special_function */ - "R_REL", /* name */ - TRUE, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (0x17, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 16, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_REL", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffff, /* Source mask. */ + 0xffff, /* Dest mask. */ + FALSE), /* PC rel offset. */ /* Modifiable branch absolute. */ - HOWTO (0x18, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - 0, /* special_function */ - "R_RBA", /* name */ - TRUE, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (0x18, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 16, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_RBA", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffff, /* Source mask. */ + 0xffff, /* Dest mask. */ + FALSE), /* PC rel offset. */ /* Modifiable branch absolute. */ - HOWTO (0x19, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - 0, /* special_function */ - "R_RBAC", /* name */ - TRUE, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (0x19, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 16, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_RBAC", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffff, /* Source mask. */ + 0xffff, /* Dest mask. */ + FALSE), /* PC rel offset. */ /* Modifiable branch relative. */ - HOWTO (0x1a, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 26, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_signed, /* complain_on_overflow */ - 0, /* special_function */ - "R_REL", /* name */ - TRUE, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE), /* pcrel_offset */ + HOWTO (0x1a, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 26, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_signed, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_REL", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffff, /* Source mask. */ + 0xffff, /* Dest mask. */ + FALSE), /* PC rel offset. */ /* Modifiable branch absolute. */ - HOWTO (0x1b, /* type */ - 0, /* rightshift */ - 2, /* size (0 = byte, 1 = short, 2 = long) */ - 16, /* bitsize */ - FALSE, /* pc_relative */ - 0, /* bitpos */ - complain_overflow_bitfield, /* complain_on_overflow */ - 0, /* special_function */ - "R_REL", /* name */ - TRUE, /* partial_inplace */ - 0xffff, /* src_mask */ - 0xffff, /* dst_mask */ - FALSE) /* pcrel_offset */ + HOWTO (0x1b, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 16, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "R_REL", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffff, /* Source mask. */ + 0xffff, /* Dest mask. */ + FALSE) /* PC rel offset. */ }; #define HOWTO_COUNT (sizeof nlm_powerpc_howto_table \ @@ -548,11 +430,10 @@ static reloc_howto_type nlm_powerpc_howto_table[] = /* Read a PowerPC NLM reloc. */ static bfd_boolean -nlm_powerpc_read_reloc (abfd, sym, secp, rel) - bfd *abfd; - nlmNAME(symbol_type) *sym; - asection **secp; - arelent *rel; +nlm_powerpc_read_reloc (bfd *abfd, + nlmNAME (symbol_type) *sym, + asection **secp, + arelent *rel) { struct nlm32_powerpc_external_reloc ext; bfd_vma l_vaddr; @@ -578,11 +459,9 @@ nlm_powerpc_read_reloc (abfd, sym, secp, rel) /* Work out the arelent fields. */ if (sym != NULL) - { - /* This is an import. sym_ptr_ptr is filled in by - nlm_canonicalize_reloc. */ - rel->sym_ptr_ptr = NULL; - } + /* This is an import. sym_ptr_ptr is filled in by + nlm_canonicalize_reloc. */ + rel->sym_ptr_ptr = NULL; else { asection *sec; @@ -634,17 +513,95 @@ nlm_powerpc_read_reloc (abfd, sym, secp, rel) return TRUE; } -#endif /* OLDFORMAT */ +#else /* not OLDFORMAT */ + +/* There is only one type of reloc in a PowerPC NLM. */ + +static reloc_howto_type nlm_powerpc_howto = + HOWTO (0, /* Type. */ + 0, /* Rightshift. */ + 2, /* Size (0 = byte, 1 = short, 2 = long). */ + 32, /* Bitsize. */ + FALSE, /* PC relative. */ + 0, /* Bitpos. */ + complain_overflow_bitfield, /* Complain_on_overflow. */ + 0, /* Special_function. */ + "32", /* Name. */ + TRUE, /* Partial_inplace. */ + 0xffffffff, /* Source mask. */ + 0xffffffff, /* Dest mask. */ + FALSE); /* PC rel_offset. */ + +/* Read a PowerPC NLM reloc. */ + +static bfd_boolean +nlm_powerpc_read_reloc (bfd *abfd, + nlmNAME (symbol_type) *sym, + asection **secp, + arelent *rel) +{ + bfd_byte temp[4]; + bfd_vma val; + const char *name; + + if (bfd_bread (temp, (bfd_size_type) sizeof (temp), abfd) != sizeof (temp)) + return FALSE; + + val = bfd_get_32 (abfd, temp); + + /* The value is a word offset into either the code or data segment. + This is the location which needs to be adjusted. + + The high bit is 0 if the value is an offset into the data + segment, or 1 if the value is an offset into the text segment. + + If this is a relocation fixup rather than an imported symbol (the + sym argument is NULL), then the second most significant bit is 0 + if the address of the data segment should be added to the + location addressed by the value, or 1 if the address of the text + segment should be added. + + If this is an imported symbol, the second most significant bit is + not used and must be 0. */ + + if ((val & NLM_HIBIT) == 0) + name = NLM_INITIALIZED_DATA_NAME; + else + { + name = NLM_CODE_NAME; + val &=~ NLM_HIBIT; + } + *secp = bfd_get_section_by_name (abfd, name); + + if (sym == NULL) + { + if ((val & (NLM_HIBIT >> 1)) == 0) + name = NLM_INITIALIZED_DATA_NAME; + else + { + name = NLM_CODE_NAME; + val &=~ (NLM_HIBIT >> 1); + } + rel->sym_ptr_ptr = bfd_get_section_by_name (abfd, name)->symbol_ptr_ptr; + } + + rel->howto = & nlm_powerpc_howto; + rel->address = val << 2; + rel->addend = 0; + + return TRUE; +} + +#endif /* not OLDFORMAT */ /* Mangle PowerPC NLM relocs for output. */ static bfd_boolean -nlm_powerpc_mangle_relocs (abfd, sec, data, offset, count) - bfd *abfd ATTRIBUTE_UNUSED; - asection *sec ATTRIBUTE_UNUSED; - const PTR data ATTRIBUTE_UNUSED; - bfd_vma offset ATTRIBUTE_UNUSED; - bfd_size_type count ATTRIBUTE_UNUSED; +nlm_powerpc_mangle_relocs (bfd *abfd ATTRIBUTE_UNUSED, + asection *sec ATTRIBUTE_UNUSED, + const void * data ATTRIBUTE_UNUSED, + bfd_vma offset ATTRIBUTE_UNUSED, + bfd_size_type count ATTRIBUTE_UNUSED) { return TRUE; } @@ -652,17 +609,15 @@ nlm_powerpc_mangle_relocs (abfd, sec, data, offset, count) /* Read a PowerPC NLM import record */ static bfd_boolean -nlm_powerpc_read_import (abfd, sym) - bfd *abfd; - nlmNAME(symbol_type) *sym; +nlm_powerpc_read_import (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 */ + 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; - if (bfd_bread ((PTR) &symlength, (bfd_size_type) sizeof (symlength), abfd) + if (bfd_bread (& symlength, (bfd_size_type) sizeof (symlength), abfd) != sizeof (symlength)) return FALSE; sym -> symbol.the_bfd = abfd; @@ -676,13 +631,12 @@ nlm_powerpc_read_import (abfd, sym) sym -> symbol.flags = 0; sym -> symbol.value = 0; sym -> symbol.section = bfd_und_section_ptr; - if (bfd_bread ((PTR) temp, (bfd_size_type) sizeof (temp), abfd) + if (bfd_bread (temp, (bfd_size_type) sizeof (temp), abfd) != sizeof (temp)) return FALSE; rcount = H_GET_32 (abfd, temp); - nlm_relocs = ((struct nlm_relent *) - bfd_alloc (abfd, rcount * sizeof (struct nlm_relent))); - if (nlm_relocs == (struct nlm_relent *) NULL) + nlm_relocs = bfd_alloc (abfd, rcount * sizeof (struct nlm_relent)); + if (nlm_relocs == NULL) return FALSE; sym -> relocs = nlm_relocs; sym -> rcnt = 0; @@ -704,10 +658,7 @@ nlm_powerpc_read_import (abfd, sym) /* Write a PowerPC NLM reloc. */ static bfd_boolean -nlm_powerpc_write_import (abfd, sec, rel) - bfd *abfd; - asection *sec; - arelent *rel; +nlm_powerpc_write_import (bfd * abfd, asection * sec, arelent * rel) { asymbol *sym; bfd_vma val; @@ -775,11 +726,10 @@ nlm_powerpc_write_import (abfd, sec, rel) /* Write a PowerPC NLM reloc. */ static bfd_boolean -nlm_powerpc_write_reloc (abfd, sec, rel, indx) - bfd *abfd; - asection *sec; - arelent *rel; - int indx; +nlm_powerpc_write_reloc (bfd *abfd, + asection *sec, + arelent *rel, + int indx) { struct nlm32_powerpc_external_reloc ext; asection *code_sec, *data_sec, *bss_sec; @@ -878,10 +828,7 @@ nlm_powerpc_write_reloc (abfd, sec, rel, indx) /* Write a PowerPC NLM import. */ static bfd_boolean -nlm_powerpc_write_import (abfd, sec, rel) - bfd *abfd; - asection *sec; - arelent *rel; +nlm_powerpc_write_import (bfd * abfd, asection * sec, arelent * rel) { return nlm_powerpc_write_reloc (abfd, sec, rel, -1); } @@ -893,11 +840,10 @@ nlm_powerpc_write_import (abfd, sec, rel) necessary, and the index never gets reset. */ static bfd_boolean -nlm_powerpc_write_external (abfd, count, sym, relocs) - bfd *abfd; - bfd_size_type count; - asymbol *sym; - struct reloc_and_sec *relocs; +nlm_powerpc_write_external (bfd *abfd, + bfd_size_type count, + asymbol *sym, + struct reloc_and_sec *relocs) { unsigned int i; bfd_byte len; @@ -943,9 +889,7 @@ nlm_powerpc_write_external (abfd, count, sym, relocs) /* Set the section for a public symbol. */ static bfd_boolean -nlm_powerpc_set_public_section (abfd, sym) - bfd *abfd; - nlmNAME(symbol_type) *sym; +nlm_powerpc_set_public_section (bfd *abfd, nlmNAME (symbol_type) *sym) { if (sym->symbol.value & NLM_HIBIT) { @@ -955,10 +899,8 @@ nlm_powerpc_set_public_section (abfd, sym) bfd_get_section_by_name (abfd, NLM_CODE_NAME); } else - { - sym->symbol.section = - bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME); - } + sym->symbol.section = + bfd_get_section_by_name (abfd, NLM_INITIALIZED_DATA_NAME); sym->symbol.value <<= 2; @@ -968,9 +910,7 @@ nlm_powerpc_set_public_section (abfd, sym) /* Get the offset to write out for a public symbol. */ static bfd_vma -nlm_powerpc_get_public_offset (abfd, sym) - bfd *abfd; - asymbol *sym; +nlm_powerpc_get_public_offset (bfd *abfd, asymbol *sym) { bfd_vma offset; asection *sec; @@ -1008,7 +948,7 @@ static const struct nlm_backend_data nlm32_powerpc_backend = "NetWare PowerPC Module \032", sizeof (Nlm32_powerpc_External_Fixed_Header), #ifndef OLDFORMAT - 0, /* optional_prefix_size */ + 0, /* Optional_prefix_size. */ #else sizeof (struct nlm32_powerpc_external_prefix_header), #endif @@ -1016,8 +956,8 @@ static const struct nlm_backend_data nlm32_powerpc_backend = 0, FALSE, #ifndef OLDFORMAT - 0, /* backend_object_p */ - 0, /* write_prefix */ + 0, /* Backend_object_p. */ + 0, /* Write_prefix. */ #else nlm_powerpc_backend_object_p, nlm_powerpc_write_prefix, @@ -1030,17 +970,17 @@ static const struct nlm_backend_data nlm32_powerpc_backend = nlm_powerpc_set_public_section, nlm_powerpc_get_public_offset, #else - 0, /* set_public_section */ - 0, /* get_public_offset */ + 0, /* Set_public_section. */ + 0, /* Get_public_offset. */ #endif nlm_swap_fixed_header_in, nlm_swap_fixed_header_out, nlm_powerpc_write_external, - 0, /* write_export */ + 0, /* Write_export. */ }; #define TARGET_BIG_NAME "nlm32-powerpc" -#define TARGET_BIG_SYM nlmNAME(powerpc_vec) -#define TARGET_BACKEND_DATA &nlm32_powerpc_backend +#define TARGET_BIG_SYM nlmNAME (powerpc_vec) +#define TARGET_BACKEND_DATA & nlm32_powerpc_backend #include "nlm-target.h" |