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@ -1,5 +1,5 @@ |
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/* Routines to help build PEI-format DLLs (Win32 etc)
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Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 |
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Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 |
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Free Software Foundation, Inc. |
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Written by DJ Delorie <dj@cygnus.com> |
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@ -95,7 +95,7 @@ |
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For each reference of data symbol to be imported from DLL (to set of which |
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belong symbols with name <sym>, if __imp_<sym> is found in implib), the |
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import fixup entry is generated. That entry is of type |
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IMAGE_IMPORT_DESCRIPTOR and stored in .idata$3 subsection. Each |
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IMAGE_IMPORT_DESCRIPTOR and stored in .idata$2 subsection. Each |
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fixup entry contains pointer to symbol's address within .text section |
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(marked with __fuN_<sym> symbol, where N is integer), pointer to DLL name |
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(so, DLL name is referenced by multiple entries), and pointer to symbol |
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@ -216,6 +216,9 @@ static pe_details_type *pe_details; |
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static autofilter_entry_type autofilter_symbollist[] = |
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{ |
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{ "DllMain", 7 }, |
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{ "DllMainCRTStartup", 17 }, |
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{ "_DllMainCRTStartup", 18 }, |
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{ "DllMain@12", 10 }, |
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{ "DllEntryPoint@0", 15 }, |
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{ "DllMainCRTStartup@12", 20 }, |
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@ -226,12 +229,14 @@ static autofilter_entry_type autofilter_symbollist[] = |
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{ "_pei386_runtime_relocator", 25 }, |
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{ "do_pseudo_reloc", 15 }, |
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{ "cygwin_crt0", 11 }, |
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{ ".text", 5 }, |
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{ NULL, 0 } |
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}; |
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/* Do not specify library suffix explicitly, to allow for dllized versions. */ |
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static autofilter_entry_type autofilter_liblist[] = |
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{ |
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{ "libcegcc", 8 }, |
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{ "libcygwin", 9 }, |
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{ "libgcc", 6 }, |
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{ "libstdc++", 9 }, |
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@ -261,9 +266,10 @@ static autofilter_entry_type autofilter_objlist[] = |
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static autofilter_entry_type autofilter_symbolprefixlist[] = |
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{ |
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/* { "__imp_", 6 }, */ |
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{ "__imp_", 6 }, |
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/* Do __imp_ explicitly to save time. */ |
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{ "__rtti_", 7 }, |
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{ ".idata$", 7 }, |
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/* Don't re-export auto-imported symbols. */ |
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{ "_nm_", 4 }, |
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{ "__builtin_", 10 }, |
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@ -1131,8 +1137,13 @@ generate_reloc (bfd *abfd, struct bfd_link_info *info) |
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int nsyms, symsize; |
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/* If it's not loaded, we don't need to relocate it this way. */ |
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#if 0 /* Some toolchains can generate .data sections without a SEC_LOAD flag but with relocs. */
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if (!(s->output_section->flags & SEC_LOAD)) |
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continue; |
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#endif |
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/* Huh ? */ |
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if (strncmp (bfd_get_section_name (abfd, s), ".idata",6) == 0) |
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continue; |
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/* I don't know why there would be a reloc for these, but I've
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seen it happen - DJ */ |
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@ -1780,6 +1791,14 @@ static unsigned char jmp_mips_bytes[] = |
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0x08, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00 |
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}; |
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static unsigned char jmp_arm_bytes[] = |
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{ |
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0x00, 0xc0, 0x9f, 0xe5, /* ldr ip, [pc] */ |
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0x00, 0xf0, 0x9c, 0xe5, /* ldr pc, [ip] */ |
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0, 0, 0, 0 |
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}; |
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static bfd * |
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make_one (def_file_export *exp, bfd *parent) |
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{ |
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@ -1805,6 +1824,10 @@ make_one (def_file_export *exp, bfd *parent) |
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jmp_bytes = jmp_mips_bytes; |
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jmp_byte_count = sizeof (jmp_mips_bytes); |
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break; |
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case PE_ARCH_arm: |
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jmp_bytes = jmp_arm_bytes; |
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jmp_byte_count = sizeof (jmp_arm_bytes); |
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break; |
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default: |
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abort (); |
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} |
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@ -1878,6 +1901,9 @@ make_one (def_file_export *exp, bfd *parent) |
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quick_reloc (abfd, 0, BFD_RELOC_LO16, 0); /* MIPS_R_PAIR */ |
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quick_reloc (abfd, 4, BFD_RELOC_LO16, 2); |
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break; |
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case PE_ARCH_arm: |
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quick_reloc (abfd, 8, BFD_RELOC_32, 2); |
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break; |
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default: |
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abort (); |
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} |
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@ -2048,7 +2074,7 @@ make_import_fixup_mark (arelent *rel) |
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return fixup_name; |
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} |
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/* .section .idata$3
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/* .section .idata$2
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.rva __nm_thnk_SYM (singleton thunk with name of func) |
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.long 0 |
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.long 0 |
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@ -2061,8 +2087,8 @@ make_import_fixup_entry (const char *name, |
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const char *dll_symname, |
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bfd *parent) |
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{ |
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asection *id3; |
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unsigned char *d3; |
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asection *id2; |
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unsigned char *d2; |
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char *oname; |
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bfd *abfd; |
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@ -2079,25 +2105,25 @@ make_import_fixup_entry (const char *name, |
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symptr = 0; |
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symtab = xmalloc (6 * sizeof (asymbol *)); |
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id3 = quick_section (abfd, ".idata$3", SEC_HAS_CONTENTS, 2); |
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id2 = quick_section (abfd, ".idata$2", SEC_HAS_CONTENTS, 2); |
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quick_symbol (abfd, U ("_nm_thnk_"), name, "", UNDSEC, BSF_GLOBAL, 0); |
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quick_symbol (abfd, U (""), dll_symname, "_iname", UNDSEC, BSF_GLOBAL, 0); |
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quick_symbol (abfd, "", fixup_name, "", UNDSEC, BSF_GLOBAL, 0); |
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bfd_set_section_size (abfd, id3, 20); |
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d3 = xmalloc (20); |
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id3->contents = d3; |
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memset (d3, 0, 20); |
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bfd_set_section_size (abfd, id2, 20); |
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d2 = xmalloc (20); |
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id2->contents = d2; |
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memset (d2, 0, 20); |
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quick_reloc (abfd, 0, BFD_RELOC_RVA, 1); |
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quick_reloc (abfd, 12, BFD_RELOC_RVA, 2); |
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quick_reloc (abfd, 16, BFD_RELOC_RVA, 3); |
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save_relocs (id3); |
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save_relocs (id2); |
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bfd_set_symtab (abfd, symtab, symptr); |
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bfd_set_section_contents (abfd, id3, d3, 0, 20); |
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bfd_set_section_contents (abfd, id2, d2, 0, 20); |
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bfd_make_readable (abfd); |
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return abfd; |
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Nick Clifton
21 years ago