Ros-diffs May 2007

ros-diffs@reactos.org

17 participants
322 discussions

[arty] 26605: Don't replace linker name on that pass.

by arty＠svn.reactos.org

Author: arty Date: Tue May 1 11:25:44 2007 New Revision: 26605 URL: http://svn.reactos.org/svn/reactos?rev=26605&view=rev Log: Don't replace linker name on that pass. Modified: branches/powerpc/reactos/tools/ppc-build/elfpe/compdvr.cpp Modified: branches/powerpc/reactos/tools/ppc-build/elfpe/compdvr.cpp URL: http://svn.reactos.org/svn/reactos/branches/powerpc/reactos/tools/ppc-build… ============================================================================== --- branches/powerpc/reactos/tools/ppc-build/elfpe/compdvr.cpp (original) +++ branches/powerpc/reactos/tools/ppc-build/elfpe/compdvr.cpp Tue May 1 11:25:44 2007 @@ -309,7 +309,6 @@ if( subcmd_args[0].find("collect2") != std::string::npos || subcmd_args[0].find("ld") != std::string::npos ) { - subcmd_args[0] = linker_name; if( status = run_ld( verbose, nostdlib, nostartfiles, is_dll, make_map, mingw_lib_dir, ldscript, subcmd_args ) )

17 years, 5 months

[arty] 26604: Final commits for elf conversion.

by arty＠svn.reactos.org

Author: arty Date: Tue May 1 11:20:45 2007 New Revision: 26604 URL: http://svn.reactos.org/svn/reactos?rev=26604&view=rev Log: Final commits for elf conversion. Modified: branches/powerpc/reactos/boot/freeldr/freeldr/arch/powerpc/mboot.c branches/powerpc/reactos/boot/freeldr/freeldr/arch/powerpc/prep_vga.c branches/powerpc/reactos/tools/ppc-build/elfpe/compdvr.cpp branches/powerpc/reactos/tools/ppc-build/elfpe/header.cpp branches/powerpc/reactos/tools/ppc-build/elfpe/header.h branches/powerpc/reactos/tools/ppc-build/elfpe/objectfile.cpp branches/powerpc/reactos/tools/ppc-build/elfpe/objectfile.h branches/powerpc/reactos/tools/ppc-build/elfpe/pedef.h branches/powerpc/reactos/tools/ppc-build/elfpe/util.cpp branches/powerpc/reactos/tools/ppc-build/elfpe/util.h Modified: branches/powerpc/reactos/boot/freeldr/freeldr/arch/powerpc/mboot.c URL: http://svn.reactos.org/svn/reactos/branches/powerpc/reactos/boot/freeldr/fr… ============================================================================== --- branches/powerpc/reactos/boot/freeldr/freeldr/arch/powerpc/mboot.c (original) +++ branches/powerpc/reactos/boot/freeldr/freeldr/arch/powerpc/mboot.c Tue May 1 11:20:45 2007 @@ -398,6 +398,9 @@ * MemLoadAddr -- Freeldr address of module * KernelAddr -- Kernel address of module *--*/ +#define ELF_SECTION(n) ((Elf32_Shdr*)(sptr + (n * shsize))) +#define COFF_FIRST_SECTION(h) ((PIMAGE_SECTION_HEADER) ((DWORD)h+FIELD_OFFSET(IMAGE_NT_HEADERS,OptionalHeader)+(SWAPW(((PIMAGE_NT_HEADERS)(h))->FileHeader.SizeOfOptionalHeader)))) + BOOLEAN NTAPI FrLdrMapModule(FILE *KernelImage, PCHAR ImageName, PCHAR MemLoadAddr, ULONG KernelAddr) @@ -410,7 +413,6 @@ INT i, j; PLOADER_MODULE ModuleData; int phsize, phnum, shsize, shnum, relsize, SectionAddr = 0; - PULONG SectionOffsets; PCHAR sptr; Elf32_Ehdr ehdr; Elf32_Shdr *shdr; @@ -441,7 +443,6 @@ shsize = ehdr.e_shentsize; shnum = ehdr.e_shnum; sptr = (PCHAR)MmAllocateMemory(shnum * shsize); - SectionOffsets = (PULONG)MmAllocateMemory(shnum * sizeof(ULONG)); /* Read section headers */ FsSetFilePointer(KernelImage, ehdr.e_shoff); @@ -452,8 +453,8 @@ /* Now we'll get the PE Header */ for( i = 0; i < shnum; i++ ) { - shdr = (Elf32_Shdr*)(sptr + (i * shsize)); - printf("Header %d: type %d flags %x\n", i, shdr->sh_type, shdr->sh_flags); + shdr = ELF_SECTION(i); + /* Find the PE Header */ if (shdr->sh_type == TYPE_PEHEADER) { @@ -462,7 +463,6 @@ ImageHeader = (PIMAGE_DOS_HEADER)KernelMemory; NtHeader = (PIMAGE_NT_HEADERS)((PCHAR)KernelMemory + SWAPD(ImageHeader->e_lfanew)); printf("NtHeader at %x\n", SWAPD(ImageHeader->e_lfanew)); - SectionOffsets[i] = 0; printf("SectionAlignment %x\n", SWAPD(NtHeader->OptionalHeader.SectionAlignment)); SectionAddr = ROUND_UP @@ -478,38 +478,46 @@ return 0; } - /* Save the Image Size */ + /* Save the Image Base */ NtHeader->OptionalHeader.ImageBase = SWAPD(KernelAddr); /* Load the file image */ - Section = IMAGE_FIRST_SECTION(NtHeader); - SectionCount = NtHeader->FileHeader.NumberOfSections - 1; + Section = COFF_FIRST_SECTION(NtHeader); + SectionCount = SWAPW(NtHeader->FileHeader.NumberOfSections); + + printf("Section headers at %x\n", ((PCHAR)Section) - ((PCHAR)KernelAddr)); + + printf("-- Dumping ntoskrnl memory --\n"); + for (i = 0; i < 0x1000; i++) { + if(!(i & 0xf)) { + if(i) printf("\n"); + for (j = 0; j < 8; j++) + printf("%x", (((KernelAddr + i) << (j * 4)) >> 28) & 0xf); + printf(": "); + } + printf("%x%x ", + (*(((PCHAR)KernelMemory)+i)>>4)&0xf, + *(((PCHAR)KernelMemory)+i)&0xf); + } + printf("-- Dump done --\n"); /* Walk each section */ for (i=0; i < SectionCount; i++, Section++) { - shdr = (Elf32_Shdr*)(sptr + (i * shsize)); - if ((shdr->sh_type != SHT_PROGBITS) && - (shdr->sh_type != SHT_NOBITS)) continue; - - SectionOffsets[i] = SectionAddr; + printf("Section %d (NT Header) is elf section %d\n", + i, SWAPD(Section->PointerToRawData)); + shdr = ELF_SECTION(SWAPD(Section->PointerToRawData)); + + shdr->sh_addr = SectionAddr = SWAPD(Section->VirtualAddress); - shdr = (Elf32_Shdr*)(sptr + (i * shsize)); - - /* Get the disk location and the memory location, and the size */ - Section->Misc.VirtualSize = SWAPD(shdr->sh_size); - Section->VirtualAddress = SWAPD(SectionAddr); - Section->SizeOfRawData = SWAPD(shdr->sh_size); - Section->PointerToRawData = SWAPD(shdr->sh_offset); - - if (shdr->sh_type == SHT_PROGBITS) + if (shdr->sh_type != SHT_NOBITS) { /* Content area */ printf("Loading section %d at %x\n", i, KernelAddr + SectionAddr); FsSetFilePointer(KernelImage, shdr->sh_offset); FsReadFile(KernelImage, shdr->sh_size, NULL, KernelMemory + SectionAddr); } - else if (shdr->sh_type == SHT_NOBITS) + else { /* Zero it out */ printf("BSS section %d at %x\n", i, KernelAddr + SectionAddr); @@ -517,18 +525,14 @@ ROUND_UP(shdr->sh_size, SWAPD(NtHeader->OptionalHeader.SectionAlignment))); } - - SectionAddr += - ROUND_UP - (shdr->sh_size, SWAPD(NtHeader->OptionalHeader.SectionAlignment)); - } - - ImageSize = SectionAddr; - NtHeader->OptionalHeader.SizeOfImage = SWAPD(ImageSize); + } + + ImageSize = SWAPD(NtHeader->OptionalHeader.SizeOfImage); + KernelEntry = SWAPD(NtHeader->OptionalHeader.AddressOfEntryPoint); printf("Total image size is %x\n", ImageSize); /* Handle relocation sections */ - for (Section = IMAGE_FIRST_SECTION(NtHeader), i = 0; + for (Section = COFF_FIRST_SECTION(NtHeader), i = 0; i < SectionCount; i++, Section++) { Elf32_Rela reloc = { }; @@ -537,7 +541,7 @@ int numreloc, relstart, targetSection; Elf32_Sym symbol; - shdr = (Elf32_Shdr*)(sptr + (i * shsize)); + shdr = ELF_SECTION(i); /* Only relocs here */ if((shdr->sh_type != SHT_REL) && (shdr->sh_type != SHT_RELA)) continue; @@ -551,12 +555,13 @@ i, shdr->sh_link, shdr->sh_info); /* Get the symbol section */ - shdr = (Elf32_Shdr*)(sptr + (shdr->sh_link * shsize)); + shdr = ELF_SECTION(shdr->sh_link); for(j = 0; j < numreloc; j++) { ULONG S,A,P; + /* Get the reloc */ FsSetFilePointer(KernelImage, relstart + (numreloc * relsize)); FsReadFile(KernelImage, sizeof(reloc), NULL, &reloc); @@ -566,12 +571,12 @@ FsReadFile(KernelImage, sizeof(symbol), NULL, &symbol); /* Compute addends */ - S = symbol.st_value + KernelAddr + SectionOffsets[symbol.st_shndx]; + S = symbol.st_value + KernelAddr + ELF_SECTION(symbol.st_shndx)->sh_addr; A = reloc.r_addend; - P = reloc.r_offset + KernelAddr + SectionOffsets[targetSection]; + P = reloc.r_offset + KernelAddr + ELF_SECTION(targetSection)->sh_addr; Target32 = - (ULONG*)(((PCHAR)KernelMemory) + SectionOffsets[targetSection]); + (ULONG*)(((PCHAR)KernelMemory) + ELF_SECTION(targetSection)->sh_addr); Target16 = (USHORT *)Target32; switch (ELF32_R_TYPE(reloc.r_info)) @@ -603,22 +608,6 @@ } } -#if 0 - printf("-- Dumping ntoskrnl memory --\n"); - for (i = 0; i < ImageSize; i++) { - if(!(i & 0xf)) { - if(i) printf("\n"); - for (j = 0; j < 8; j++) - printf("%x", (((KernelAddr + i) << (j * 4)) >> 28) & 0xf); - printf(": "); - } - printf("%x%x ", - (*(((PCHAR)KernelMemory)+i)>>4)&0xf, - *(((PCHAR)KernelMemory)+i)&0xf); - } - printf("-- Dump done --\n"); -#endif - ModuleData = &reactos_modules[LoaderBlock.ModsCount]; ModuleData->ModStart = (ULONG)KernelMemory; /* Increase the next Load Base */ Modified: branches/powerpc/reactos/boot/freeldr/freeldr/arch/powerpc/prep_vga.c URL: http://svn.reactos.org/svn/reactos/branches/powerpc/reactos/boot/freeldr/fr… ============================================================================== --- branches/powerpc/reactos/boot/freeldr/freeldr/arch/powerpc/prep_vga.c (original) +++ branches/powerpc/reactos/boot/freeldr/freeldr/arch/powerpc/prep_vga.c Tue May 1 11:20:45 2007 @@ -1,5 +1,8 @@ #include <freeldr.h> #include "prep.h" +#include "ppcboot.h" + +extern boot_infos_t BootInfo; struct _vga_desc { char *port; @@ -20,6 +23,7 @@ print_bar( &bar_data ); if( (bar_data.data > 0x10000) || ((bar_data.data&1) == 1) ) { vga_desc->addr = (char *)(0xc0000000 + (bar_data.data & ~0x7ff)); + BootInfo.dispDeviceBase = vga_desc->addr; break; } } Modified: branches/powerpc/reactos/tools/ppc-build/elfpe/compdvr.cpp URL: http://svn.reactos.org/svn/reactos/branches/powerpc/reactos/tools/ppc-build… ============================================================================== --- branches/powerpc/reactos/tools/ppc-build/elfpe/compdvr.cpp (original) +++ branches/powerpc/reactos/tools/ppc-build/elfpe/compdvr.cpp Tue May 1 11:20:45 2007 @@ -127,11 +127,12 @@ bool use_libgcc = false; std::vector<std::string> args = arg_vect; std::string real_output, - entry_point = "0x1000", + entry_point = "_main", image_base = "0x400000", subsystem = "windows", make_dll, file_align = "0x1000", section_align = "0x1000", base_file; + const ElfObjectFile::Symbol *entry_sym; std::vector<std::string>::iterator i = std::find(args.begin(),args.end(),"-lgcc"); @@ -163,8 +164,6 @@ args.insert(args.begin()+1,"-T"); args.insert(args.begin()+2,ldscript); args.insert(args.begin()+1,"-r"); - args.insert(args.begin()+1,"--start-group"); - args.push_back("--end-group"); for( size_t i = 0; i < args.size(); i++ ) { if( args[i] == "-o" && i < args.size()-1 ) { @@ -201,16 +200,19 @@ if(!eof) return 1; + entry_sym = eof.getNamedSymbol(entry_point); + ElfPeHeader header (strtoul(image_base.c_str(), 0, 0), strtoul(section_align.c_str(), 0, 0), strtoul(file_align.c_str(), 0, 0), + entry_sym, 0x10000, 0x100000, 0x10000, 0x100000, + atoi(subsystem.c_str()), is_dll, - atoi(subsystem.c_str()), &eof); eof.addSection(".peheader", header.getData(), TYPE_PEHEADER); @@ -307,7 +309,9 @@ if( subcmd_args[0].find("collect2") != std::string::npos || subcmd_args[0].find("ld") != std::string::npos ) { - if( run_ld( verbose, nostdlib, nostartfiles, is_dll, make_map, + subcmd_args[0] = linker_name; + if( status = + run_ld( verbose, nostdlib, nostartfiles, is_dll, make_map, mingw_lib_dir, ldscript, subcmd_args ) ) goto final; else @@ -317,7 +321,7 @@ if( verbose ) subcmd_args.insert(subcmd_args.begin()+1,"-v"); - if( execute_command + if( status = execute_command ( verbose, subcmd_args ) ) goto final; } else if( verbose ) @@ -326,7 +330,6 @@ goto theend; final: - status = 1; theend: if( verbose ) { fprintf( stderr, "<status>%d</status>\n", status ); Modified: branches/powerpc/reactos/tools/ppc-build/elfpe/header.cpp URL: http://svn.reactos.org/svn/reactos/branches/powerpc/reactos/tools/ppc-build… ============================================================================== --- branches/powerpc/reactos/tools/ppc-build/elfpe/header.cpp (original) +++ branches/powerpc/reactos/tools/ppc-build/elfpe/header.cpp Tue May 1 11:20:45 2007 @@ -6,6 +6,7 @@ (uint32_t imagebase, uint32_t filealign, uint32_t sectionalign, + const ElfObjectFile::Symbol *entry, uint32_t stackreserve, uint32_t stackcommit, uint32_t heapreserve, @@ -20,6 +21,7 @@ heapreserve(heapreserve), heapcommit(heapcommit), subsysid(subsysid), + entry(entry), eof(eof) { data.resize(computeSize()); @@ -33,6 +35,9 @@ void ElfPeHeader::createHeaderSection() { + std::vector<section_mapping_t> sectionRvaSet; + uint32_t imageSize = getSectionRvas(sectionRvaSet); + data[0] = 'M'; data[1] = 'Z'; uint8_t *dataptr = &data[0x3c]; uint32_t coffHeaderSize, optHeaderSizeMember; @@ -40,7 +45,7 @@ dataptr = &data[0x80]; le32write_postinc(dataptr, 0x4550); le16write_postinc(dataptr, getPeArch()); - le16write_postinc(dataptr, getNumSections()); + le16write_postinc(dataptr, sectionRvaSet.size()); le32write_postinc(dataptr, time(NULL)); le32write_postinc(dataptr, 0); le32write_postinc(dataptr, 0); @@ -53,7 +58,7 @@ le32write_postinc(dataptr, 0); le32write_postinc(dataptr, 0); le32write_postinc(dataptr, 0); - le32write_postinc(dataptr, getEntryPoint()); + le32write_postinc(dataptr, getEntryPoint(sectionRvaSet, entry)); le32write_postinc(dataptr, 0); le32write_postinc(dataptr, 0); le32write_postinc(dataptr, imagebase); @@ -66,7 +71,7 @@ le16write_postinc(dataptr, 4); le16write_postinc(dataptr, 0); le32write_postinc(dataptr, 0); - le32write_postinc(dataptr, getImageSize()); + le32write_postinc(dataptr, imageSize); le32write_postinc(dataptr, computeSize()); le32write_postinc(dataptr, 0); // No checksum yet le16write_postinc(dataptr, subsysid); @@ -92,18 +97,50 @@ le16write (&data[0] + optHeaderSizeMember, (dataptr - &data[0]) - coffHeaderSize); + // Here, we store references to the sections, filling in the RVA and + // size, but leaving out the other info. We write the section name + // truncated into the name field and leave the section id in the + // physical address bit + for (int i = 0; i < sectionRvaSet.size(); i++) + { + section_mapping_t mapping = sectionRvaSet[i]; + const ElfObjectFile::Section *section = mapping.section; + std::string name = section->getName(); + uint32_t size = section->logicalSize(); + uint32_t rva = mapping.rva; + for (int j = 0; j < 8; j++) + { + *dataptr++ = j < name.size() ? name[j] : '\000'; + } + le32write_postinc(dataptr, size); + le32write_postinc(dataptr, rva); + le32write_postinc(dataptr, size); + // Note: we put the index in the offset slot so we can find the + // real offset later in the loader + le32write_postinc(dataptr, sectionRvaSet[i].index); + le32write_postinc(dataptr, 0); + le32write_postinc(dataptr, 0); + le32write_postinc(dataptr, 0); + // XXX Figure out the real flags + le32write_postinc(dataptr, IMAGE_SCN_CNT_CODE); + } } const std::vector<uint8_t> &ElfPeHeader::getData() const { return data; } -uint32_t ElfPeHeader::getImageSize() const -{ - uint32_t start = 0; - uint32_t limit = 0; +uint32_t ElfPeHeader::getSectionRvas(std::vector<section_mapping_t> &rvas) const +{ + uint32_t start = computeSize(); + uint32_t limit = start; for(int i = 0; i < eof->getNumSections(); i++) { { const ElfObjectFile::Section &sect = eof->getSection(i); - limit = roundup(start + sect.logicalSize(), sectionalign); + if(sect.getType() == SHT_PROGBITS) { + limit = roundup(start + sect.logicalSize(), sectionalign); + fprintf(stderr, "rva[%02d:%s] = (%x %x %d)\n", + rvas.size(), sect.getName().c_str(), &sect, start, i); + rvas.push_back(section_mapping_t(&sect, start, i)); + } } start = limit; } @@ -174,3 +211,15 @@ { return std::make_pair(0,0); } + +uint32_t ElfPeHeader::getEntryPoint +(const std::vector<ElfPeHeader::section_mapping_t> &secmap, + const ElfObjectFile::Symbol *entry) const +{ + if(entry == NULL) return computeSize(); + for(int i = 0; i < secmap.size(); i++) { + if(secmap[i].index == entry->section) + return secmap[i].rva + entry->offset; + } + return computeSize(); +} Modified: branches/powerpc/reactos/tools/ppc-build/elfpe/header.h URL: http://svn.reactos.org/svn/reactos/branches/powerpc/reactos/tools/ppc-build… ============================================================================== --- branches/powerpc/reactos/tools/ppc-build/elfpe/header.h (original) +++ branches/powerpc/reactos/tools/ppc-build/elfpe/header.h Tue May 1 11:20:45 2007 @@ -13,6 +13,7 @@ (uint32_t imagebase, uint32_t imagealign, uint32_t filealign, + const ElfObjectFile::Symbol *entry, uint32_t stackreserve, uint32_t stackcommit, uint32_t heapreserve, @@ -23,8 +24,21 @@ const ElfObjectFile::secdata_t &getData() const; private: + typedef struct section_mapping_t { + const ElfObjectFile::Section *section; + uint32_t rva; + int index; + + section_mapping_t + (const ElfObjectFile::Section *sect, uint32_t rva, int index) : + section(sect), rva(rva), index(index) { } + section_mapping_t(const section_mapping_t &other) : + section(other.section), rva(other.rva), index(other.index) { } + } section_mapping_t; + void createHeaderSection(); - int getNumSections() const { return eof->getNumSections(); } + uint32_t getSectionRvas(std::vector<section_mapping_t> &rvas) const; + uint32_t getEntryPoint(const std::vector<section_mapping_t> &rvas, const ElfObjectFile::Symbol *entry) const; int computeSize() const; int getExeFlags() const { return 0; } int getDllFlags() const { return dll ? IMAGE_FILE_DLL : 0; } @@ -38,8 +52,6 @@ u32pair_t getDescrInfo() const; u32pair_t getMachInfo() const; u32pair_t getTlsInfo() const; - uint32_t getEntryPoint() const { return eof->getEntryPoint(); } - uint32_t getImageSize() const; uint16_t getPeArch() const; uint32_t saToRva(int section, uint32_t offset) const; uint32_t vaToRva(uint32_t source_addr) const; @@ -50,6 +62,7 @@ heapreserve, heapcommit; bool dll; int subsysid; + const ElfObjectFile::Symbol *entry; ElfObjectFile *eof; std::vector<uint8_t> data; static const char *mzHeader; Modified: branches/powerpc/reactos/tools/ppc-build/elfpe/objectfile.cpp URL: http://svn.reactos.org/svn/reactos/branches/powerpc/reactos/tools/ppc-build… ============================================================================== --- branches/powerpc/reactos/tools/ppc-build/elfpe/objectfile.cpp (original) +++ branches/powerpc/reactos/tools/ppc-build/elfpe/objectfile.cpp Tue May 1 11:20:45 2007 @@ -1,11 +1,13 @@ #include <libelf/libelf.h> #include <fcntl.h> +#include "util.h" #include "objectfile.h" ElfObjectFile::ElfObjectFile(const std::string &filename) : fd(-1) { Elf_Scn *s = 0; Elf32_Ehdr *ehdr; + Section *sect; fd = open(filename.c_str(), O_RDWR, 0); if(fd >= 0) { if(elf_version(EV_CURRENT) == EV_NONE) { @@ -21,13 +23,17 @@ shnum = ehdr->e_shnum; phnum = ehdr->e_phnum; shstrndx = ehdr->e_shstrndx; + /* Populate section table */ for(size_t i = 0; i < shnum; i++) { s = elf_nextscn(elfHeader, s); if(!s) break; - sections.push_back(new Section(*this, s)); - fprintf(stderr, "Got section %04d %s\n", i, sections[i]->getName().c_str()); + sect = new Section(*this, s); + sections.push_back(sect); + sections_by_name.insert(std::make_pair(sect->getName(), sect)); } + + populateSymbolTable(); } } @@ -35,6 +41,32 @@ { if(elfHeader) elf_end(elfHeader); if(fd >= 0) close(fd); +} + +void ElfObjectFile::populateSymbolTable() +{ + int i = 0, j; + int type, link, flags, section; + uint32_t offset; + std::string name; + uint8_t *data, *symptr; + Elf32_Sym *sym; + Symbol *ourSym; + + for( i = 0; i < getNumSections(); i++ ) { + type = getSection(i).getType(); + link = getSection(i).getLink(); + if( (type == SHT_SYMTAB) || (type == SHT_DYNSYM) ) { + /* Read a symbol */ + sym = (Elf32_Sym*)getSection(i).getSectionData(); + for (j = 0; j < getSection(i).logicalSize() / sizeof(Elf32_Sym); j++) { + name = elf_strptr(elfHeader, link, sym[j].st_name); + ourSym = new Symbol(name, sym[j].st_value, sym[j].st_shndx, sym[j].st_info); + symbols.push_back(ourSym); + symbols_by_name.insert(std::make_pair(name, ourSym)); + } + } + } } uint32_t ElfObjectFile::getEntryPoint() const @@ -66,7 +98,7 @@ /* Finish the section */ shdr->sh_name = newstrdata->d_off; shdr->sh_type = type; - shdr->sh_flags = 0; + shdr->sh_flags = SHF_ALLOC; shdr->sh_addr = 0; shdr->sh_link = 0; shdr->sh_info = 0; @@ -76,8 +108,18 @@ const ElfObjectFile::Section *ElfObjectFile::getNamedSection(const std::string &name) const { - for(size_t i = 0; i < sections.size(); i++) { - if(sections[i]->getName() == name) return sections[i]; - } - return NULL; + std::map<std::string, const ElfObjectFile::Section *>::const_iterator i = + sections_by_name.find(name); + if(i != sections_by_name.end()) + return i->second; + else return NULL; } + +const ElfObjectFile::Symbol *ElfObjectFile::getNamedSymbol(const std::string &name) const +{ + std::map<std::string, const ElfObjectFile::Symbol *>::const_iterator i = + symbols_by_name.find(name); + if(i != symbols_by_name.end()) + return i->second; + else return NULL; +} Modified: branches/powerpc/reactos/tools/ppc-build/elfpe/objectfile.h URL: http://svn.reactos.org/svn/reactos/branches/powerpc/reactos/tools/ppc-build… ============================================================================== --- branches/powerpc/reactos/tools/ppc-build/elfpe/objectfile.h (original) +++ branches/powerpc/reactos/tools/ppc-build/elfpe/objectfile.h Tue May 1 11:20:45 2007 @@ -3,41 +3,83 @@ #include <string> #include <vector> +#include <map> #include <libelf/libelf.h> class ElfObjectFile { public: typedef std::vector<uint8_t> secdata_t; + class Symbol { + public: + Symbol(const std::string &name, uint32_t offset, + int section, int flags) : + name(name), offset(offset), section(section), flags(flags) { } + std::string name; + uint32_t offset; + int section; + int flags; + }; + class Section { public: Section(const Section &other) : - obj(other.obj), section(other.section) { } + obj(other.obj), section(other.section), have_data(false) { + e32shdr = elf32_getshdr(section); + } Section(ElfObjectFile &obj, Elf_Scn *sechdr) : - obj(&obj), section(sechdr) { } + obj(&obj), section(sechdr), have_data(false) { + e32shdr = elf32_getshdr(section); + } Section &operator = (const Section &other) { obj = other.obj; + have_data = false; section = other.section; + e32shdr = other.e32shdr; } operator bool () { return !!section; } std::string getName() const { - Elf32_Shdr *e32shdr = elf32_getshdr(section); return obj->getString(e32shdr->sh_name); } + int getType() const { + return e32shdr->sh_type; + } + + int getLink() const { + return e32shdr->sh_link; + } + + int getInfo() const { + return e32shdr->sh_info; + } + int logicalSize() const { - Elf32_Shdr *e32shdr = elf32_getshdr(section); return e32shdr->sh_size; } uint32_t getStartRva() const { - Elf32_Shdr *e32shdr = elf32_getshdr(section); return e32shdr->sh_addr; + } + + uint32_t getFileOffset() const { + return e32shdr->sh_offset; + } + + uint8_t *getSectionData() const { + if(!have_data) { + data = *elf_getdata(section, NULL); + have_data = true; + } + return (uint8_t *)data.d_buf; } private: const ElfObjectFile *obj; Elf_Scn *section; + Elf32_Shdr *e32shdr; + mutable bool have_data; + mutable Elf_Data data; }; ElfObjectFile(const std::string &filename); @@ -54,6 +96,8 @@ (const std::string &name, const secdata_t &data, int type = SHT_PROGBITS); const Section &getSection(int sect) const { return *sections[sect]; } const Section *getNamedSection(const std::string &name) const; + const Symbol &getSymbol(int n) const { return *symbols[n]; } + const Symbol *getNamedSymbol(const std::string &symname) const; private: int fd; @@ -61,6 +105,11 @@ int shstrndx; Elf *elfHeader; std::vector<Section*> sections; + std::map<std::string, const Section *> sections_by_name; + std::vector<Symbol*> symbols; + std::map<std::string, const Symbol *> symbols_by_name; + + void populateSymbolTable(); }; #endif//COMPDVR_ELFOBJECT_H Modified: branches/powerpc/reactos/tools/ppc-build/elfpe/pedef.h URL: http://svn.reactos.org/svn/reactos/branches/powerpc/reactos/tools/ppc-build… ============================================================================== --- branches/powerpc/reactos/tools/ppc-build/elfpe/pedef.h (original) +++ branches/powerpc/reactos/tools/ppc-build/elfpe/pedef.h Tue May 1 11:20:45 2007 @@ -29,4 +29,16 @@ #define IMAGE_FILE_UP_SYSTEM_ONLY 0x4000 #define IMAGE_FILE_BYTES_REVERSED_HI 0x8000 +#define IMAGE_SCN_CNT_CODE 0x00000020 +#define IMAGE_SCN_CNT_INITIALIZED_DATA 0x00000040 +#define IMAGE_SCN_CNT_UNINITIALIZED_DATA 0x00000080 + +#define IMAGE_SCN_MEM_DISCARDABLE 0x02000000 +#define IMAGE_SCN_MEM_NOT_CACHED 0x04000000 +#define IMAGE_SCN_MEM_NOT_PAGED 0x08000000 +#define IMAGE_SCN_MEM_SHARED 0x10000000 +#define IMAGE_SCN_MEM_EXECUTE 0x20000000 +#define IMAGE_SCN_MEM_READ 0x40000000 +#define IMAGE_SCN_MEM_WRITE 0x80000000 + #endif//COMPDVR_PEDEF_H Modified: branches/powerpc/reactos/tools/ppc-build/elfpe/util.cpp URL: http://svn.reactos.org/svn/reactos/branches/powerpc/reactos/tools/ppc-build… ============================================================================== --- branches/powerpc/reactos/tools/ppc-build/elfpe/util.cpp (original) +++ branches/powerpc/reactos/tools/ppc-build/elfpe/util.cpp Tue May 1 11:20:45 2007 @@ -33,3 +33,27 @@ le32write_postinc(dataptr, value.first); le32write_postinc(dataptr, value.second); } + +uint16_t be16read(uint8_t *dataptr) +{ + return dataptr[0] << 8 | dataptr[1]; +} + +uint16_t be16read_postinc(uint8_t *&dataptr) +{ + uint16_t res = be16read(dataptr); + dataptr += 2; + return res; +} + +uint32_t be32read(uint8_t *dataptr) +{ + return be16read(dataptr) << 16 | be16read(dataptr+2); +} + +uint32_t be32read_postinc(uint8_t *&dataptr) +{ + uint32_t res = be32read(dataptr); + dataptr += 4; + return res; +} Modified: branches/powerpc/reactos/tools/ppc-build/elfpe/util.h URL: http://svn.reactos.org/svn/reactos/branches/powerpc/reactos/tools/ppc-build… ============================================================================== --- branches/powerpc/reactos/tools/ppc-build/elfpe/util.h (original) +++ branches/powerpc/reactos/tools/ppc-build/elfpe/util.h Tue May 1 11:20:45 2007 @@ -12,6 +12,10 @@ uint16_t le16read_postinc(uint8_t *&dataptr); uint32_t le32read(uint8_t *dataptr); uint32_t le32read_postinc(uint8_t *&dataptr); +uint16_t be16read(uint8_t *dataptr); +uint16_t be16read_postinc(uint8_t *&dataptr); +uint32_t be32read(uint8_t *dataptr); +uint32_t be32read_postinc(uint8_t *&dataptr); typedef std::pair<uint32_t, uint32_t> u32pair_t; void le32pwrite_postinc(uint8_t *&dataptr, const u32pair_t &pair); void le32pwrite(uint8_t *dataptr, const u32pair_t &pair);

17 years, 5 months

Jump to page:

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

Ros-diffs May 2007