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llvm-project/lld/test/ELF/invalid-cie-length5.s

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[ELF] - implement support of extended length field for CIE/FDE records of eh_frame. Ian Lance Taylor writes: "Read 4 bytes. If they are not 0xffffffff, they are the length of the CIE or FDE record. Otherwise the next 64 bits holds the length, and this is a 64-bit DWARF format. This is like .debug_frame." (http://www.airs.com/blog/archives/460), that also consistent with spec (https://refspecs.linuxfoundation.org/LSB_3.0.0/LSB-PDA/LSB-PDA/ehframechpt.html). Patch implements support of described extended length field and also adds few more checks for safety. Differential revision: http://reviews.llvm.org/D15532 llvm-svn: 255883
2015-12-17 17:23:40 +08:00
// REQUIRES: x86
// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t
[ELF] Replace unused output filenames with /dev/null in tests Post commit review at rLLD335992 llvm-svn: 336129
2018-07-03 01:48:23 +08:00
// RUN: not ld.lld %t -o /dev/null 2>&1 | FileCheck %s
[ELF] - implement support of extended length field for CIE/FDE records of eh_frame. Ian Lance Taylor writes: "Read 4 bytes. If they are not 0xffffffff, they are the length of the CIE or FDE record. Otherwise the next 64 bits holds the length, and this is a 64-bit DWARF format. This is like .debug_frame." (http://www.airs.com/blog/archives/460), that also consistent with spec (https://refspecs.linuxfoundation.org/LSB_3.0.0/LSB-PDA/LSB-PDA/ehframechpt.html). Patch implements support of described extended length field and also adds few more checks for safety. Differential revision: http://reviews.llvm.org/D15532 llvm-svn: 255883
2015-12-17 17:23:40 +08:00
.section .eh_frame
.long 0xFFFFFFFF
.quad 0xFFFFFFFFFFFFFFF4
Refactor EHOutputSection. This patch refactors EHOutputSection using SectionPiece struct. EHRegion class was removed since we can now directly use SectionPiece. An incomplete support of large CIE/FDE record (> 2^32 bytes) was removed because it silently created broken executable. There are several places in the existing code that "size" field is always 4 bytes and at offset 4 in the record, which is not true for 64-bit size records. We will have to support that in future, but it is better to error out instead of creating malformed eh_frame sections. llvm-svn: 270382
2016-05-23 07:16:14 +08:00
// CHECK: CIE/FDE too large