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Fixed

LIN9-7959 : WRL9 - Do not fail on overlapping FDEs in .eh_frame_hdr

Created: Jan 2, 2019 Updated: Feb 25, 2019

Resolved Date: Feb 20, 2019

Found In Version: 9.0.0.11

Fix Version: 9.0.0.20

Severity: Critical

Applicable for: Wind River Linux 9

Component/s: Toolchain

Description

1.While building one module with WRL9 ,  we get following linking issue.  
...../usr/libexec/x86_64-wrs-linux/gcc/x86_64-wrs-linux/6.2.0/real-ld: .eh_frame_hdr refers to overlapping FDEs.        
...../usr/libexec/x86_64-wrs-linux/gcc/x86_64-wrs-linux/6.2.0/real-ld: final link failed: Bad value                     

2.One  way  is to disable creation of  ".eh_frame_hdr" section. But when we provide, '--no-eh-frame-hdr' linking flag, GCC shows following error:
....... x86_64-wrs-linux-gcc: error: unrecognized command line option '--no-eh-frame-hdr';

3.Looks like, current GCC always adds "--eh-frame-hdr" automatically on linker call and there
is no "--no-eh-frame-hdr" option to override that. It would be good if such
option could be provided or the error could somehow be made a warning instead.

Workaround

NA

Steps to Reproduce

Reproducible in customer setup, this is impacting their build.