X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=bfd%2Fnlm32-ppc.c;h=b6009f2da30826ec500e6314100b0da94357b127;hb=b9d62f893fcc0b4c36aad0552810dcde304979d0;hp=77c32a2b4696d26c09511a400fb7e36e688ca1d9;hpb=3af0f479d04c4c57bddd81ab139603061018cb00;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/nlm32-ppc.c b/bfd/nlm32-ppc.c index 77c32a2b46..b6009f2da3 100644 --- a/bfd/nlm32-ppc.c +++ b/bfd/nlm32-ppc.c @@ -1,436 +1,427 @@ /* Support for 32-bit PowerPC NLM (NetWare Loadable Module) - Copyright (C) 1994 Free Software Foundation, Inc. + Copyright (C) 1994-2017 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 3 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., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ -#include "bfd.h" #include "sysdep.h" +#include "bfd.h" #include "libbfd.h" +/* The format of a PowerPC NLM changed. Define OLDFORMAT to get the + old format. */ + #define ARCH_SIZE 32 #include "nlm/ppc-ext.h" #define Nlm_External_Fixed_Header Nlm32_powerpc_External_Fixed_Header #include "libnlm.h" - -static boolean nlm_powerpc_backend_object_p - PARAMS ((bfd *)); -static boolean nlm_powerpc_write_prefix - PARAMS ((bfd *)); -static boolean nlm_powerpc_read_reloc - PARAMS ((bfd *, nlmNAME(symbol_type) *, asection **, arelent *)); -static boolean nlm_powerpc_mangle_relocs - PARAMS ((bfd *, asection *, PTR, bfd_vma, bfd_size_type)); -static boolean nlm_powerpc_read_import - PARAMS ((bfd *, nlmNAME(symbol_type) *)); -static boolean nlm_powerpc_write_reloc - PARAMS ((bfd *, asection *, arelent *, int)); -static boolean nlm_powerpc_write_import - PARAMS ((bfd *, asection *, arelent *)); -static boolean nlm_powerpc_write_external - PARAMS ((bfd *, bfd_size_type, asymbol *, struct reloc_and_sec *)); +#ifdef OLDFORMAT + +/* The prefix header is only used in the old format. */ + /* PowerPC NLM's have a prefix header before the standard NLM. This function reads it in, verifies the version, and seeks the bfd to the location before the regular NLM header. */ -static boolean -nlm_powerpc_backend_object_p (abfd) - bfd *abfd; +static bfd_boolean +nlm_powerpc_backend_object_p (bfd *abfd) { struct nlm32_powerpc_external_prefix_header s; - if (bfd_read ((PTR) &s, sizeof s, 1, abfd) != sizeof s) - return false; + 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 - || bfd_h_get_32 (abfd, s.headerVersion) != NLM32_POWERPC_HEADER_VERSION) - return false; + || H_GET_32 (abfd, s.headerVersion) != NLM32_POWERPC_HEADER_VERSION) + return FALSE; - return true; + return TRUE; } /* Write out the prefix. */ -static boolean -nlm_powerpc_write_prefix (abfd) - bfd *abfd; +static bfd_boolean +nlm_powerpc_write_prefix (bfd *abfd) { struct nlm32_powerpc_external_prefix_header s; memset (&s, 0, sizeof s); memcpy (s.signature, NLM32_POWERPC_SIGNATURE, sizeof s.signature); - bfd_h_put_32 (abfd, (bfd_vma) NLM32_POWERPC_HEADER_VERSION, s.headerVersion); - bfd_h_put_32 (abfd, (bfd_vma) 0, s.origins); + H_PUT_32 (abfd, NLM32_POWERPC_HEADER_VERSION, s.headerVersion); + H_PUT_32 (abfd, 0, s.origins); /* FIXME: What should we do about the date? */ - if (bfd_write ((PTR) &s, sizeof s, 1, abfd) != sizeof s) - return false; + if (bfd_bwrite (& s, (bfd_size_type) sizeof s, abfd) != sizeof s) + return FALSE; - return true; + return TRUE; } - + +/* This reloc handling is only applicable to the old format. */ + /* How to process the various reloc types. PowerPC NLMs use XCOFF reloc types, and I have just copied the XCOFF reloc table here. */ 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 \ @@ -438,12 +429,11 @@ static reloc_howto_type nlm_powerpc_howto_table[] = /* Read a PowerPC NLM reloc. */ -static boolean -nlm_powerpc_read_reloc (abfd, sym, secp, rel) - bfd *abfd; - nlmNAME(symbol_type) *sym; - asection **secp; - arelent *rel; +static bfd_boolean +nlm_powerpc_read_reloc (bfd *abfd, + nlmNAME (symbol_type) *sym, + asection **secp, + arelent *rel) { struct nlm32_powerpc_external_reloc ext; bfd_vma l_vaddr; @@ -453,17 +443,14 @@ nlm_powerpc_read_reloc (abfd, sym, secp, rel) asection *code_sec, *data_sec, *bss_sec; /* Read the reloc from the file. */ - if (bfd_read (&ext, sizeof ext, 1, abfd) != sizeof ext) - { - bfd_set_error (bfd_error_system_call); - return false; - } + if (bfd_bread (&ext, (bfd_size_type) sizeof ext, abfd) != sizeof ext) + return FALSE; /* Swap in the fields. */ - l_vaddr = bfd_h_get_32 (abfd, ext.l_vaddr); - l_symndx = bfd_h_get_32 (abfd, ext.l_symndx); - l_rtype = bfd_h_get_16 (abfd, ext.l_rtype); - l_rsecnm = bfd_h_get_16 (abfd, ext.l_rsecnm); + l_vaddr = H_GET_32 (abfd, ext.l_vaddr); + l_symndx = H_GET_32 (abfd, ext.l_symndx); + l_rtype = H_GET_16 (abfd, ext.l_rtype); + l_rsecnm = H_GET_16 (abfd, ext.l_rsecnm); /* Get the sections now, for convenience. */ code_sec = bfd_get_section_by_name (abfd, NLM_CODE_NAME); @@ -472,11 +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; @@ -490,7 +475,7 @@ nlm_powerpc_read_reloc (abfd, sym, secp, rel) else { bfd_set_error (bfd_error_bad_value); - return false; + return FALSE; } rel->sym_ptr_ptr = sec->symbol_ptr_ptr; @@ -515,106 +500,236 @@ nlm_powerpc_read_reloc (abfd, sym, secp, rel) else if (l_rsecnm == 1) { *secp = data_sec; - l_vaddr -= bfd_section_size (abfd, code_sec); + l_vaddr -= code_sec->size; } else { bfd_set_error (bfd_error_bad_value); - return false; + return FALSE; } rel->address = l_vaddr; - return true; + return TRUE; +} + +#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 boolean -nlm_powerpc_mangle_relocs (abfd, sec, data, offset, count) - bfd *abfd; - asection *sec; - PTR data; - bfd_vma offset; - bfd_size_type count; +static bfd_boolean +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; + return TRUE; } /* Read a PowerPC NLM import record */ -static boolean -nlm_powerpc_read_import (abfd, sym) - bfd *abfd; - nlmNAME(symbol_type) *sym; +static bfd_boolean +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_read ((PTR) &symlength, sizeof (symlength), 1, abfd) + if (bfd_bread (& symlength, (bfd_size_type) sizeof (symlength), abfd) != sizeof (symlength)) - { - bfd_set_error (bfd_error_system_call); - return (false); - } + return FALSE; sym -> symbol.the_bfd = abfd; - name = bfd_alloc (abfd, symlength + 1); + name = bfd_alloc (abfd, (bfd_size_type) symlength + 1); if (name == NULL) - { - bfd_set_error (bfd_error_no_memory); - return false; - } - if (bfd_read (name, symlength, 1, abfd) != symlength) - { - bfd_set_error (bfd_error_system_call); - return (false); - } + return FALSE; + 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; - if (bfd_read ((PTR) temp, sizeof (temp), 1, abfd) != sizeof (temp)) - { - bfd_set_error (bfd_error_system_call); - return (false); - } - rcount = bfd_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) - { - bfd_set_error (bfd_error_no_memory); - return false; - } + sym -> symbol.section = bfd_und_section_ptr; + if (bfd_bread (temp, (bfd_size_type) sizeof (temp), abfd) + != sizeof (temp)) + return FALSE; + rcount = H_GET_32 (abfd, temp); + nlm_relocs = bfd_alloc (abfd, rcount * sizeof (struct nlm_relent)); + if (nlm_relocs == NULL) + return FALSE; sym -> relocs = nlm_relocs; sym -> rcnt = 0; while (sym -> rcnt < rcount) { asection *section; - - if (nlm_powerpc_read_reloc (abfd, sym, §ion, - &nlm_relocs -> reloc) - == false) - return false; + + if (! nlm_powerpc_read_reloc (abfd, sym, §ion, &nlm_relocs -> reloc)) + return FALSE; nlm_relocs -> section = section; nlm_relocs++; sym -> rcnt++; } - return true; + return TRUE; } +#ifndef OLDFORMAT + /* Write a PowerPC NLM reloc. */ -static boolean -nlm_powerpc_write_reloc (abfd, sec, rel, indx) - bfd *abfd; - asection *sec; - arelent *rel; - int indx; +static bfd_boolean +nlm_powerpc_write_import (bfd * abfd, asection * sec, arelent * rel) +{ + asymbol *sym; + bfd_vma val; + bfd_byte temp[4]; + + /* PowerPC NetWare only supports one kind of reloc. */ + if (rel->addend != 0 + || rel->howto == NULL + || rel->howto->rightshift != 0 + || rel->howto->size != 2 + || rel->howto->bitsize != 32 + || rel->howto->bitpos != 0 + || rel->howto->pc_relative + || (rel->howto->src_mask != 0xffffffff && rel->addend != 0) + || rel->howto->dst_mask != 0xffffffff) + { + bfd_set_error (bfd_error_invalid_operation); + return FALSE; + } + + sym = *rel->sym_ptr_ptr; + + /* The value we write out is the offset into the appropriate + segment, rightshifted by two. This offset is the section vma, + adjusted by the vma of the lowest section in that segment, plus + the address of the relocation. */ + val = bfd_get_section_vma (abfd, sec) + rel->address; + if ((val & 3) != 0) + { + bfd_set_error (bfd_error_bad_value); + return FALSE; + } + val >>= 2; + + /* The high bit is 0 if the reloc is in the data section, or 1 if + the reloc is in the code section. */ + if (bfd_get_section_flags (abfd, sec) & SEC_DATA) + val -= nlm_get_data_low (abfd); + else + { + val -= nlm_get_text_low (abfd); + val |= NLM_HIBIT; + } + + if (! bfd_is_und_section (bfd_get_section (sym))) + { + /* This is an internal relocation fixup. The second most + significant bit is 0 if this is a reloc against the data + segment, or 1 if it is a reloc against the text segment. */ + if (bfd_get_section_flags (abfd, bfd_get_section (sym)) & SEC_CODE) + val |= NLM_HIBIT >> 1; + } + + bfd_put_32 (abfd, val, temp); + if (bfd_bwrite (temp, (bfd_size_type) sizeof (temp), abfd) != sizeof (temp)) + return FALSE; + + return TRUE; +} + +#else /* OLDFORMAT */ + +/* This is used for the reloc handling in the old format. */ + +/* Write a PowerPC NLM reloc. */ + +static bfd_boolean +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; @@ -623,7 +738,7 @@ nlm_powerpc_write_reloc (abfd, sec, rel, indx) unsigned long l_symndx; int l_rtype; int l_rsecnm; - const reloc_howto_type *howto; + reloc_howto_type *howto; bfd_size_type address; /* Get the sections now, for convenience. */ @@ -635,7 +750,7 @@ nlm_powerpc_write_reloc (abfd, sec, rel, indx) symsec = bfd_get_section (sym); if (indx != -1) { - BFD_ASSERT (symsec == &bfd_und_section); + BFD_ASSERT (bfd_is_und_section (symsec)); l_symndx = indx + 3; } else @@ -649,11 +764,11 @@ nlm_powerpc_write_reloc (abfd, sec, rel, indx) else { bfd_set_error (bfd_error_bad_value); - return false; + return FALSE; } } - bfd_h_put_32 (abfd, (bfd_vma) l_symndx, ext.l_symndx); + H_PUT_32 (abfd, l_symndx, ext.l_symndx); for (howto = nlm_powerpc_howto_table; howto < nlm_powerpc_howto_table + HOWTO_COUNT; @@ -677,14 +792,14 @@ nlm_powerpc_write_reloc (abfd, sec, rel, indx) if (howto >= nlm_powerpc_howto_table + HOWTO_COUNT) { bfd_set_error (bfd_error_bad_value); - return false; + return FALSE; } l_rtype = howto->type; if (howto->complain_on_overflow == complain_overflow_signed) l_rtype |= 0x8000; l_rtype |= (howto->bitsize - 1) << 8; - bfd_h_put_16 (abfd, (bfd_vma) l_rtype, ext.l_rtype); + H_PUT_16 (abfd, l_rtype, ext.l_rtype); address = rel->address; @@ -693,103 +808,179 @@ nlm_powerpc_write_reloc (abfd, sec, rel, indx) else if (sec == data_sec) { l_rsecnm = 1; - address += bfd_section_size (abfd, code_sec); + address += code_sec->size; } else { bfd_set_error (bfd_error_bad_value); - return false; + return FALSE; } - bfd_h_put_16 (abfd, (bfd_vma) l_rsecnm, ext.l_rsecnm); - bfd_h_put_32 (abfd, (bfd_vma) address, ext.l_vaddr); + H_PUT_16 (abfd, l_rsecnm, ext.l_rsecnm); + H_PUT_32 (abfd, address, ext.l_vaddr); - if (bfd_write (&ext, sizeof ext, 1, abfd) != sizeof ext) - return false; + if (bfd_bwrite (&ext, (bfd_size_type) sizeof ext, abfd) != sizeof ext) + return FALSE; - return true; + return TRUE; } /* Write a PowerPC NLM import. */ -static boolean -nlm_powerpc_write_import (abfd, sec, rel) - bfd *abfd; - asection *sec; - arelent *rel; +static bfd_boolean +nlm_powerpc_write_import (bfd * abfd, asection * sec, arelent * rel) { return nlm_powerpc_write_reloc (abfd, sec, rel, -1); } +#endif /* OLDFORMAT */ + /* Write a PowerPC NLM external symbol. This routine keeps a static count of the symbol index. FIXME: I don't know if this is necessary, and the index never gets reset. */ -static boolean -nlm_powerpc_write_external (abfd, count, sym, relocs) - bfd *abfd; - bfd_size_type count; - asymbol *sym; - struct reloc_and_sec *relocs; +static bfd_boolean +nlm_powerpc_write_external (bfd *abfd, + bfd_size_type count, + asymbol *sym, + struct reloc_and_sec *relocs) { - int i; + unsigned int i; bfd_byte len; unsigned char temp[NLM_TARGET_LONG_SIZE]; +#ifdef OLDFORMAT static int indx; +#endif len = strlen (sym->name); - if ((bfd_write (&len, sizeof (bfd_byte), 1, abfd) != sizeof(bfd_byte)) - || bfd_write (sym->name, len, 1, abfd) != len) - { - bfd_set_error (bfd_error_system_call); - return false; - } + 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; bfd_put_32 (abfd, count, temp); - if (bfd_write (temp, sizeof(temp), 1, abfd) != sizeof (temp)) - { - bfd_set_error (bfd_error_system_call); - return false; - } + if (bfd_bwrite (temp, (bfd_size_type) sizeof (temp), abfd) != sizeof (temp)) + return FALSE; for (i = 0; i < count; i++) { - if (nlm_powerpc_write_reloc (abfd, relocs[i].sec, - relocs[i].rel, indx) == false) - return false; +#ifndef OLDFORMAT + if (! nlm_powerpc_write_import (abfd, relocs[i].sec, relocs[i].rel)) + return FALSE; +#else + if (! nlm_powerpc_write_reloc (abfd, relocs[i].sec, + relocs[i].rel, indx)) + return FALSE; +#endif } +#ifdef OLDFORMAT ++indx; +#endif - return true; + return TRUE; } + +#ifndef OLDFORMAT + +/* PowerPC Netware uses a word offset, not a byte offset, for public + symbols. */ +/* Set the section for a public symbol. */ + +static bfd_boolean +nlm_powerpc_set_public_section (bfd *abfd, nlmNAME (symbol_type) *sym) +{ + if (sym->symbol.value & NLM_HIBIT) + { + sym->symbol.value &= ~NLM_HIBIT; + sym->symbol.flags |= BSF_FUNCTION; + sym->symbol.section = + 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.value <<= 2; + + return TRUE; +} + +/* Get the offset to write out for a public symbol. */ + +static bfd_vma +nlm_powerpc_get_public_offset (bfd *abfd, asymbol *sym) +{ + bfd_vma offset; + asection *sec; + + offset = bfd_asymbol_value (sym); + sec = bfd_get_section (sym); + if (sec->flags & SEC_CODE) + { + offset -= nlm_get_text_low (abfd); + offset |= NLM_HIBIT; + } + else if (sec->flags & (SEC_DATA | SEC_ALLOC)) + { + /* SEC_ALLOC is for the .bss section. */ + offset -= nlm_get_data_low (abfd); + } + else + { + /* We can't handle an exported symbol that is not in the code or + data segment. */ + bfd_set_error (bfd_error_invalid_operation); + /* FIXME: No way to return error. */ + abort (); + } + + return offset; +} + +#endif /* ! defined (OLDFORMAT) */ + #include "nlmswap.h" 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. */ +#else sizeof (struct nlm32_powerpc_external_prefix_header), +#endif bfd_arch_powerpc, 0, - false, + FALSE, +#ifndef OLDFORMAT + 0, /* Backend_object_p. */ + 0, /* Write_prefix. */ +#else nlm_powerpc_backend_object_p, nlm_powerpc_write_prefix, +#endif nlm_powerpc_read_reloc, nlm_powerpc_mangle_relocs, nlm_powerpc_read_import, nlm_powerpc_write_import, - 0, /* set_public_section */ - 0, /* get_public_offset */ +#ifndef OLDFORMAT + nlm_powerpc_set_public_section, + nlm_powerpc_get_public_offset, +#else + 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 powerpc_nlm32_vec +#define TARGET_BACKEND_DATA & nlm32_powerpc_backend #include "nlm-target.h"