This file contains the layout of .BTF and .BTF.ext ELF sections. More...
#include "BTF.def"
Go to the source code of this file.
Classes | |
| struct | llvm::BTF::Header |
| The .BTF section header definition. More... | |
| struct | llvm::BTF::CommonType |
| The BTF common type definition. More... | |
| struct | llvm::BTF::BTFEnum |
| BTF_KIND_ENUM is followed by multiple "struct BTFEnum". More... | |
| struct | llvm::BTF::BTFArray |
| BTF_KIND_ARRAY is followed by one "struct BTFArray". More... | |
| struct | llvm::BTF::BTFMember |
| BTF_KIND_STRUCT and BTF_KIND_UNION are followed by multiple "struct BTFMember". More... | |
| struct | llvm::BTF::BTFParam |
| BTF_KIND_FUNC_PROTO are followed by multiple "struct BTFParam". More... | |
| struct | llvm::BTF::ExtHeader |
| The .BTF.ext section header definition. More... | |
| struct | llvm::BTF::BPFFuncInfo |
| Specifying one function info. More... | |
| struct | llvm::BTF::SecFuncInfo |
| Specifying function info's in one section. More... | |
| struct | llvm::BTF::BPFLineInfo |
| Specifying one line info. More... | |
| struct | llvm::BTF::SecLineInfo |
| Specifying line info's in one section. More... | |
Namespaces | |
| llvm | |
| This class represents lattice values for constants. | |
| llvm::BTF | |
Macros | |
| #define | HANDLE_BTF_KIND(ID, NAME) BTF_KIND_##NAME = ID, |
Enumerations | |
| enum | : uint32_t { llvm::BTF::MAGIC = 0xeB9F, llvm::BTF::VERSION = 1 } |
| enum | { llvm::BTF::HeaderSize = 24, llvm::BTF::ExtHeaderSize = 24, llvm::BTF::CommonTypeSize = 12, llvm::BTF::BTFArraySize = 12, llvm::BTF::BTFEnumSize = 8, llvm::BTF::BTFMemberSize = 12, llvm::BTF::BTFParamSize = 8, llvm::BTF::SecFuncInfoSize = 8, llvm::BTF::SecLineInfoSize = 8, llvm::BTF::BPFFuncInfoSize = 8, llvm::BTF::BPFLineInfoSize = 16 } |
| Sizes in bytes of various things in the BTF format. More... | |
| enum | : uint32_t { llvm::BTF::MAX_VLEN = 0xffff } |
| enum | llvm::BTF::TypeKinds : uint8_t |
| enum | : uint8_t { llvm::BTF::INT_SIGNED = (1 << 0), llvm::BTF::INT_CHAR = (1 << 1), llvm::BTF::INT_BOOL = (1 << 2) } |
| Attributes stored in the INT_ENCODING. More... | |
Detailed Description
This file contains the layout of .BTF and .BTF.ext ELF sections.
The binary layout for .BTF section: struct Header Type and Str subsections The Type subsection is a collection of types with type id starting with 1. The Str subsection is simply a collection of strings.
The binary layout for .BTF.ext section: struct ExtHeader FuncInfo and LineInfo subsections The FuncInfo subsection is defined as below: BTFFuncInfo Size struct SecFuncInfo for ELF section #1 A number of struct BPFFuncInfo for ELF section #1 struct SecFuncInfo for ELF section #2 A number of struct BPFFuncInfo for ELF section #2 ... The LineInfo subsection is defined as below: BPFLineInfo Size struct SecLineInfo for ELF section #1 A number of struct BPFLineInfo for ELF section #1 struct SecLineInfo for ELF section #2 A number of struct BPFLineInfo for ELF section #2 ...
The section formats are also defined at https://github.com/torvalds/linux/blob/master/include/uapi/linux/btf.h
Definition in file BTF.h.
