From 3dc09bbeddbb366df60e4c956878bebe9188b028 Mon Sep 17 00:00:00 2001
From: florian <florian@freepascal.org>
Date: Sat, 9 Apr 2022 21:12:28 +0200
Subject: [PATCH]   * provide __libc_csu_init and __libc_csu_fini as weak
 symbols

(cherry picked from commit 35a7490ae1fb25d2baa3cf9abe37c5a8a7792eaf)
---
 rtl/linux/x86_64/si_c.inc | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/rtl/linux/x86_64/si_c.inc b/rtl/linux/x86_64/si_c.inc
index cf6e0f16b4..fd035f4df8 100644
--- a/rtl/linux/x86_64/si_c.inc
+++ b/rtl/linux/x86_64/si_c.inc
@@ -52,6 +52,24 @@ procedure libc_start_main; external name '__libc_start_main';
 
 procedure _FPC_libc_haltproc(e:longint); forward;
 
+procedure ___libc_csu_init; external name '__libc_csu_init';
+
+{$if FPC_FULLVERSION>30202}
+procedure __libc_csu_init; public name '__libc_csu_init'; assembler;
+  asm
+    .weak __libc_csu_init
+  end;
+{$endif FPC_FULLVERSION>30202}
+
+procedure ___libc_csu_fini; external name '__libc_csu_fini';
+
+{$if FPC_FULLVERSION>30202}
+procedure __libc_csu_fini; public name '__libc_csu_fini'; assembler;
+  asm
+    .weak __libc_csu_fini
+  end;
+{$endif FPC_FULLVERSION>30202}
+
 procedure main_stub; assembler; nostackframe;
   asm
     { save return address }
@@ -155,8 +173,8 @@ procedure _FPC_libc_start; assembler; nostackframe; public name '_start';
     pushq %rsp
 
     { Pass address of our own entry points to .fini and .init.  }
-    movq ini_dummy@GOTPCREL(%rip), %r8
-    movq ini_dummy@GOTPCREL(%rip), %rcx
+    movq ___libc_csu_fini@GOTPCREL(%rip), %r8
+    movq ___libc_csu_init@GOTPCREL(%rip), %rcx
 
     movq main_stub@GOTPCREL(%rip), %rdi