From 301ef15aefa6764466c374d07efb511b1c3862cc Mon Sep 17 00:00:00 2001
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From: Nikita Ermakov <coffe92@gmail.com>
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Date: Wed, 20 May 2020 17:57:17 +0300
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Subject: [PATCH] Fix 'undefined reference to __data_start' linker error on
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RISC-V
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Issue #294 (bdwgc).
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* include/private/gcconfig.h [RISCV && LINUX] (__data_start): Add
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attribute(weak).
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(cherry picked from commit 538562ad01b181f4cc3913da1ac06a77945cd9b9)
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Signed-off-by: Romain Naour <romain.naour@gmail.com>
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---
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include/private/gcconfig.h | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/include/private/gcconfig.h b/include/private/gcconfig.h
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index d9d45da1..d6cefa6f 100644
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--- a/include/private/gcconfig.h
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+++ b/include/private/gcconfig.h
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@@ -2943,7 +2943,7 @@ EXTERN_C_BEGIN
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# define ALIGNMENT (CPP_WORDSZ/8)
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# ifdef LINUX
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# define OS_TYPE "LINUX"
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- extern int __data_start[];
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+ extern int __data_start[] __attribute__((__weak__));
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# define DATASTART ((ptr_t)__data_start)
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# define LINUX_STACKBOTTOM
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# define DYNAMIC_LOADING
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--
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2.30.2
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