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From: "Yu Liu" <liuyu@greatwall.com.cn>
To: jordan.l.justen@intel.com, afish@apple.com, ray.ni@intel.com
Cc: devel@edk2.groups.io, LiuYu <liuyu@greatwall.com.cn>
Subject: [edk2-devel][PATCH] EmulatorPkg/Unix Prevents the compiler form optimizing unused variable
Date: Fri, 25 Sep 2020 13:48:49 +0800	[thread overview]
Message-ID: <f899ba18d2f4adf6394887a0661e1600a376d714.1601005909.git.liuyu@greatwall.com.cn> (raw)

gInXcode is only used by GDB script and if optimization is turned on then compiler
treats this variable as unused so it can't been linked in the final object.

Signed-off-by: LiuYu <liuyu@greatwall.com.cn>
---
 EmulatorPkg/Unix/Host/Host.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/EmulatorPkg/Unix/Host/Host.c b/EmulatorPkg/Unix/Host/Host.c
index b4e5510613..b851264c8e 100644
--- a/EmulatorPkg/Unix/Host/Host.c
+++ b/EmulatorPkg/Unix/Host/Host.c
@@ -54,7 +54,7 @@ IMAGE_CONTEXT_TO_MOD_HANDLE  *mImageContextModHandleArray = NULL;
 EFI_PEI_PPI_DESCRIPTOR  *gPpiList;
 
 
-int gInXcode = 0;
+int gInXcode  __attribute__((used)) = 0;
 

 /*++
-- 
2.20.1


             reply	other threads:[~2020-09-25  5:49 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-25  5:48 Yu Liu [this message]
2020-09-25  8:59 ` [edk2-devel][PATCH] EmulatorPkg/Unix Prevents the compiler form optimizing unused variable Ni, Ray

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