libgcc_s: Add a linker script to link to libgcc

When using outline atomics on arm64 the compiler will create a call to
a function that performs the atomic operation. This allows us to use
the fastest operation depending on the hardware.

As these functions are implemented in libgcc create a linker script
so libraries that link against libgcc_s will include libgcc to pull
them in.

Reviewed by:	imp, jhb
Sponsored by:	Arm Ltd
Differential Revision:	https://reviews.freebsd.org/D45268

This commit is contained in:

Andrew Turner

2026-04-27 11:54:18 +01:00

parent b5bad6df46

commit e63eee84ca

2 changed files with 3 additions and 0 deletions

									
										lib/libgcc_s/Makefile
									
		+2
		
												View File
												
				@@ -2,6 +2,8 @@ PACKAGE=	clibs

				SHLIB_NAME=	libgcc_s.so.1

				SHLIBDIR?=	/lib

				SHLIB_LDSCRIPT=libgcc_s.ldscript

				# Enabling UBSan triggers "undefined reference to vtable for __cxxabiv1::__function_type_info"

				MK_UBSAN:=	no

lib/libgcc_s/libgcc_s.ldscript

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				`@@ -0,0 +1 @@`
				`GROUP ( @@SHLIB@@ @@LIBDIR@@/libgcc.a )`