Fangrui Song f639b57f79 [ELF] Simplify getSectionRank
Follow-up to a previous simplification
2473b1af085ad54e89666cedf684fdf10a84f058.

The xor difference between a SHT_NOTE and a read-only SHT_PROGBITS
(previously >=NOT_SPECIAL) should be smaller than RF_EXEC. Otherwise,
for the following section layout, `findOrphanPos` would place .text
before note.

```
// simplified from linkerscript/custom-section-type.s
non orphans:
progbits 0x8060c00 NOT_SPECIAL
note     0x8040003

orphan:
.text    0x8061000 NOT_SPECIAL
```

---

Identical to 2e0cfe69d0d705e9c5d5f217625bf7e3a0e90871.
The revert 30c10fda2ba539e70bff4f05625ec6358c0f7502 is wrong.
2024-05-29 20:08:05 -07:00
2024-05-29 20:08:05 -07:00
2024-05-25 17:41:21 +02:00
2024-05-29 11:40:14 -07:00

The LLVM Compiler Infrastructure

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Welcome to the LLVM project!

This repository contains the source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and run-time environments.

The LLVM project has multiple components. The core of the project is itself called "LLVM". This contains all of the tools, libraries, and header files needed to process intermediate representations and convert them into object files. Tools include an assembler, disassembler, bitcode analyzer, and bitcode optimizer.

C-like languages use the Clang frontend. This component compiles C, C++, Objective-C, and Objective-C++ code into LLVM bitcode -- and from there into object files, using LLVM.

Other components include: the libc++ C++ standard library, the LLD linker, and more.

Getting the Source Code and Building LLVM

Consult the Getting Started with LLVM page for information on building and running LLVM.

For information on how to contribute to the LLVM project, please take a look at the Contributing to LLVM guide.

Getting in touch

Join the LLVM Discourse forums, Discord chat, LLVM Office Hours or Regular sync-ups.

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Description
The LLVM Project is a collection of modular and reusable compiler and toolchain technologies.
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