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Fix: std.elf offset computation

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Giuseppe Cesarano 2025-08-08 20:32:17 +02:00 committed by Andrew Kelley
parent 1ba6838bc3
commit 3ee4252183
1 changed files with 8 additions and 4 deletions
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12
lib/std/elf.zig
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@ -584,7 +584,8 @@ pub const ProgramHeaderIterator = struct {
if (it.index >= it.elf_header.phnum) return null;
defer it.index += 1;
const offset = it.elf_header.phoff + if (it.elf_header.is_64) @sizeOf(Elf64_Phdr) else @sizeOf(Elf32_Phdr) * it.index;
const size: u64 = if (it.elf_header.is_64) @sizeOf(Elf64_Phdr) else @sizeOf(Elf32_Phdr);
const offset = it.elf_header.phoff + size * it.index;
try it.file_reader.seekTo(offset);
return takePhdr(&it.file_reader.interface, it.elf_header);
@ -600,7 +601,8 @@ pub const ProgramHeaderBufferIterator = struct {
if (it.index >= it.elf_header.phnum) return null;
defer it.index += 1;
const offset = it.elf_header.phoff + if (it.elf_header.is_64) @sizeOf(Elf64_Phdr) else @sizeOf(Elf32_Phdr) * it.index;
const size: u64 = if (it.elf_header.is_64) @sizeOf(Elf64_Phdr) else @sizeOf(Elf32_Phdr);
const offset = it.elf_header.phoff + size * it.index;
var reader = std.Io.Reader.fixed(it.buf[offset..]);
return takePhdr(&reader, it.elf_header);
@ -635,7 +637,8 @@ pub const SectionHeaderIterator = struct {
if (it.index >= it.elf_header.shnum) return null;
defer it.index += 1;
const offset = it.elf_header.shoff + if (it.elf_header.is_64) @sizeOf(Elf64_Shdr) else @sizeOf(Elf32_Shdr) * it.index;
const size: u64 = if (it.elf_header.is_64) @sizeOf(Elf64_Shdr) else @sizeOf(Elf32_Shdr);
const offset = it.elf_header.shoff + size * it.index;
try it.file_reader.seekTo(offset);
return takeShdr(&it.file_reader.interface, it.elf_header);
@ -651,7 +654,8 @@ pub const SectionHeaderBufferIterator = struct {
if (it.index >= it.elf_header.shnum) return null;
defer it.index += 1;
const offset = it.elf_header.shoff + if (it.elf_header.is_64) @sizeOf(Elf64_Shdr) else @sizeOf(Elf32_Shdr) * it.index;
const size: u64 = if (it.elf_header.is_64) @sizeOf(Elf64_Shdr) else @sizeOf(Elf32_Shdr);
const offset = it.elf_header.shoff + size * it.index;
var reader = std.Io.Reader.fixed(it.buf[offset..]);
return takeShdr(&reader, it.elf_header);