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https://github.com/Fennix-Project/Kernel.git
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59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
/*
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This file is part of Fennix Kernel.
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Fennix Kernel is free software: you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation, either version 3 of
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the License, or (at your option) any later version.
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Fennix Kernel is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Fennix Kernel. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <exec.hpp>
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#include "../../../kernel.h"
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namespace Execute
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{
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std::vector<Elf64_Shdr> ELFGetSections_x86_64(int fd,
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const char *SectionName)
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{
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#if defined(a64) || defined(aa64)
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off_t OldOffset = lseek(fd, 0, SEEK_CUR);
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std::vector<Elf64_Shdr> Ret;
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Elf64_Ehdr ELFHeader;
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lseek(fd, 0, SEEK_SET);
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fread(fd, (uint8_t *)&ELFHeader, sizeof(Elf64_Ehdr));
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Elf64_Shdr *SectionHeaders = new Elf64_Shdr[ELFHeader.e_shnum];
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lseek(fd, ELFHeader.e_shoff, SEEK_SET);
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fread(fd, (uint8_t *)SectionHeaders, sizeof(Elf64_Shdr) * ELFHeader.e_shnum);
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char *SectionNames = new char[SectionHeaders[ELFHeader.e_shstrndx].sh_size];
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lseek(fd, SectionHeaders[ELFHeader.e_shstrndx].sh_offset, SEEK_SET);
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fread(fd, (uint8_t *)SectionNames, SectionHeaders[ELFHeader.e_shstrndx].sh_size);
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for (Elf64_Half i = 0; i < ELFHeader.e_shnum; ++i)
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{
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const char *Name = SectionNames + SectionHeaders[i].sh_name;
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if (strcmp(Name, SectionName) == 0)
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Ret.push_back(SectionHeaders[i]);
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}
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lseek(fd, OldOffset, SEEK_SET);
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delete[] SectionHeaders;
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delete[] SectionNames;
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return Ret;
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#elif defined(a32)
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return {};
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#endif
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}
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}
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