| /* Copyright 2025 The Fuchsia Authors. All rights reserved. |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| SECTIONS { |
| /* |
| * This is necessary to protect the unwind information data from |
| * --gc-sections. Otherwise it has no references in the hermetic partial |
| * link. However, it must survive into the final link to get referenced |
| * implicitly from .eh_frame_hdr or the hermetic code will be without |
| * unwind information. This means the hermetic link will preserve a |
| * unified .eh_frame section of dead references to GC'd code sections. |
| * The linkers treat the unwind section references to otherwise-dead code |
| * as a special case (as with nonallocated debug sections) and leaves |
| * "tombstone" address values rather than taking them as live references. |
| * So this doesn't fully defeat --gc-sections from the hermetic link. |
| * But the outer link will have to optimize out tombstoned and dead FDEs |
| * and CIEs from .eh_frame to recover what --gc-sections would ideally |
| * have done at the hermetic stage, rather than just dropping at whole |
| * input section granularity. |
| */ |
| .debug_frame : { KEEP(*(.debug_frame)) } |
| .eh_frame : { KEEP(*(.eh_frame)) } |
| .ARM.extab : { KEEP(*(.ARM.extab)) } |
| .ARM.exidx : { KEEP(*(.ARM.exidx)) } |
| |
| /* |
| * All other sections get either GC or "orphan placement", which for -r |
| * just means merging of same-named sections. |
| */ |
| } |
