[lld] [llvm] [DTLTO][ELF][COFF] Add archive support for DTLTO. (PR #157043)

[LLVM Continuous Integration via llvm-commits]

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `clang-armv7-global-isel` running on `linaro-clang-armv7-global-isel` while building `cross-project-tests,lld,llvm` at step 7 "ninja check 1".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/39/builds/9377

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 7 (ninja check 1) failure: stage 1 checked (failure)
******************** TEST 'LLVM :: CodeGen/X86/basic-block-sections-clusters-bb-hash.ll' FAILED ********************
Exit Code: 1

Command Output (stdout):
--
# RUN: at line 11
/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/bin/llc /home/tcwg-buildbot/worker/clang-armv7-global-isel/llvm/llvm/test/CodeGen/X86/basic-block-sections-clusters-bb-hash.ll -O0 -mtriple=x86_64-pc-linux -function-sections -filetype=obj -basic-block-address-map -emit-bb-hash -o /home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/test/CodeGen/X86/Output/basic-block-sections-clusters-bb-hash.ll.tmp.o
# executed command: /home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/bin/llc /home/tcwg-buildbot/worker/clang-armv7-global-isel/llvm/llvm/test/CodeGen/X86/basic-block-sections-clusters-bb-hash.ll -O0 -mtriple=x86_64-pc-linux -function-sections -filetype=obj -basic-block-address-map -emit-bb-hash -o /home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/test/CodeGen/X86/Output/basic-block-sections-clusters-bb-hash.ll.tmp.o
# RUN: at line 16
echo 'v1' > /home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/test/CodeGen/X86/Output/basic-block-sections-clusters-bb-hash.ll.tmp1
# executed command: echo v1
# RUN: at line 17
echo 'f foo' >> /home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/test/CodeGen/X86/Output/basic-block-sections-clusters-bb-hash.ll.tmp1
# executed command: echo 'f foo'
# RUN: at line 18
echo 'g 0:100,1:100,2:0 1:100,3:100 2:0,3:0 3:100' >> /home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/test/CodeGen/X86/Output/basic-block-sections-clusters-bb-hash.ll.tmp1
# executed command: echo 'g 0:100,1:100,2:0 1:100,3:100 2:0,3:0 3:100'
# RUN: at line 22
/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/bin/llvm-readobj /home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/test/CodeGen/X86/Output/basic-block-sections-clusters-bb-hash.ll.tmp.o --bb-addr-map |  awk 'BEGIN {printf "h"}      /ID: [0-9]+/ {id=$2}      /Hash: 0x[0-9A-Fa-f]+/ {gsub(/^0x/, "", $2); hash=$2; printf " %s:%s", id, hash}      END {print ""}'  >> /home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/test/CodeGen/X86/Output/basic-block-sections-clusters-bb-hash.ll.tmp1
# executed command: /home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/bin/llvm-readobj /home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/test/CodeGen/X86/Output/basic-block-sections-clusters-bb-hash.ll.tmp.o --bb-addr-map
# executed command: awk 'BEGIN {printf "h"}      /ID: [0-9]+/ {id=$2}      /Hash: 0x[0-9A-Fa-f]+/ {gsub(/^0x/, "", $2); hash=$2; printf " %s:%s", id, hash}      END {print ""}'
# RUN: at line 29
/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/bin/llc < /home/tcwg-buildbot/worker/clang-armv7-global-isel/llvm/llvm/test/CodeGen/X86/basic-block-sections-clusters-bb-hash.ll -O0 -mtriple=x86_64-pc-linux -function-sections -basic-block-sections=/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/test/CodeGen/X86/Output/basic-block-sections-clusters-bb-hash.ll.tmp1 -basic-block-section-match-infer |  /home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/bin/FileCheck /home/tcwg-buildbot/worker/clang-armv7-global-isel/llvm/llvm/test/CodeGen/X86/basic-block-sections-clusters-bb-hash.ll -check-prefixes=CHECK,LINUX-SECTIONS1
# executed command: /home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/bin/llc -O0 -mtriple=x86_64-pc-linux -function-sections -basic-block-sections=/home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/test/CodeGen/X86/Output/basic-block-sections-clusters-bb-hash.ll.tmp1 -basic-block-section-match-infer
# executed command: /home/tcwg-buildbot/worker/clang-armv7-global-isel/stage1/bin/FileCheck /home/tcwg-buildbot/worker/clang-armv7-global-isel/llvm/llvm/test/CodeGen/X86/basic-block-sections-clusters-bb-hash.ll -check-prefixes=CHECK,LINUX-SECTIONS1
# .---command stderr------------
# | /home/tcwg-buildbot/worker/clang-armv7-global-isel/llvm/llvm/test/CodeGen/X86/basic-block-sections-clusters-bb-hash.ll:80:26: error: LINUX-SECTIONS1-LABEL: expected string not found in input
# | ; LINUX-SECTIONS1-LABEL: # %bb.1:
# |                          ^
# | <stdin>:6:5: note: scanning from here
# | foo: # @foo
# |     ^
# | <stdin>:7:1: note: possible intended match here
# | # %bb.0:
# | ^
# | 
# | Input file: <stdin>
# | Check file: /home/tcwg-buildbot/worker/clang-armv7-global-isel/llvm/llvm/test/CodeGen/X86/basic-block-sections-clusters-bb-hash.ll
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |             1:  .file "<stdin>" 
# |             2:  .section .text.foo,"ax", at progbits 
# |             3:  .globl foo # -- Begin function foo 
# |             4:  .p2align 4 
# |             5:  .type foo, at function 
# |             6: foo: # @foo 
# | label:80'0         X~~~~~~~ error: no match found
...

```

</details>

https://github.com/llvm/llvm-project/pull/157043