[Bug 236344] [toolchain] gcc-built shared library crashes in static object constructors when dynamically loaded

From: <bugzilla-noreply_at_freebsd.org>
Date: Tue, 17 Aug 2021 01:26:12 UTC

Mark Millard <marklmi26-fbsd@yahoo.com> changed:

           What    |Removed                     |Added
                 CC|                            |marklmi26-fbsd@yahoo.com

--- Comment #8 from Mark Millard <marklmi26-fbsd@yahoo.com> ---
(In reply to Greg V from comment #7)

Just an FYI:

In use of FreeBSD's libc++ from g++ I use,
for example, from a specific context (not a port):

CXX=            g++11 -v -std=c++20 -Wpedantic -Wall -Wextra
CXX+=           -Wno-psabi -nostdinc -nostdinc++ \
                -I/usr/include/c++/v1 -I/usr/include
. . .
LDCXX=          -nodefaultlibs -lc++ -lcxxrt -lthr -lm -lc -lgcc_s

On aarch64 I've also use: -mno-outline-atomics
I also sometimes need -Wl,-rpath=/usr/local/lib/gcc11 for things
missing from the -lgcc_s .

The context does not load any other .so's, however.

For reference . . .

My FreeBSD goes back to 2021-Jul-05:

# uname -apKU
FreeBSD CA72_16Gp_ZFS 14.0-CURRENT FreeBSD 14.0-CURRENT #10
main-n247756-348c41d1815d-dirty: Mon Jul  5 10:23:55 PDT 2021    
 arm64 aarch64 1400025 1400025

The ports go back to 2021-Jun-19:

# ~/fbsd-based-on-what-commit.sh 
branch: main
merge-base: 7e413d93a62bb844a193e568fd8a1ba4834e5ea5
merge-base: CommitDate: 2021-06-19 00:23:12 +0000
7e413d93a62b (HEAD -> main, freebsd/main, freebsd/HEAD) graphics/mesa-devel:
update to 21.1.b.3189
n549134 (--first-parent --count for merge-base)

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