tree ccd1f4375c3b53341c15c6006cc61b9cf69a3012
parent 5aff885d950a65362da9439f3b3bbd21c69e582b
author Igor Kudrin <ikudrin@accesssoftek.com> 1636618058 +0700
committer Copybara-Service <copybara-worker@google.com> 1636618240 -0800

[ELF] Better resemble GNU ld when placing orphan sections into memory regions

An orphan section should be placed in the same memory region as its
anchor section if the latter specifies the memory region explicitly.
If there is no explicit assignment for the anchor section in the linker
script, its memory region is selected by matching attributes, and the
same should be done for the orphan section.

Before the patch, some scripts that were handled smoothly in GNU ld
caused an "error: no memory region specified for section" in lld.

Differential Revision: https://reviews.llvm.org/D112925

GitOrigin-RevId: d2dd36bbbe508ba97ab0adc5a834306f6fdc3a78