diff mbox series

[kvm-unit-tests] x86: avoid multiply defined symbol

Message ID 20200511165959.42442-1-pbonzini@redhat.com (mailing list archive)
State New, archived
Headers show
Series [kvm-unit-tests] x86: avoid multiply defined symbol | expand

Commit Message

Paolo Bonzini May 11, 2020, 4:59 p.m. UTC
Fedora 32 croaks about a symbol that is defined twice, fix it.

Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 lib/x86/fault_test.c |  2 +-
 lib/x86/usermode.c   |  2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

Comments

Thomas Huth May 12, 2020, 6:01 a.m. UTC | #1
On 11/05/2020 18.59, Paolo Bonzini wrote:
> Fedora 32 croaks about a symbol that is defined twice, fix it.
> 
> Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
>  lib/x86/fault_test.c |  2 +-
>  lib/x86/usermode.c   |  2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/lib/x86/fault_test.c b/lib/x86/fault_test.c
> index 078dae3..e15a218 100644
> --- a/lib/x86/fault_test.c
> +++ b/lib/x86/fault_test.c
> @@ -1,6 +1,6 @@
>  #include "fault_test.h"
>  
> -jmp_buf jmpbuf;
> +static jmp_buf jmpbuf;
>  
>  static void restore_exec_to_jmpbuf(void)
>  {
> diff --git a/lib/x86/usermode.c b/lib/x86/usermode.c
> index f01ad9b..f032523 100644
> --- a/lib/x86/usermode.c
> +++ b/lib/x86/usermode.c
> @@ -14,7 +14,7 @@
>  #define USERMODE_STACK_SIZE	0x2000
>  #define RET_TO_KERNEL_IRQ	0x20
>  
> -jmp_buf jmpbuf;
> +static jmp_buf jmpbuf;

Reviewed-by: Thomas Huth <thuth@redhat.com>

Seems like GCC v10 defaults to -fno-common now? Maybe we should add this
to the CFLAGS of the kvm-unit-tests, so that we get the same behavior
with all versions of the compiler?

 Thomas
Paolo Bonzini May 12, 2020, 8:38 a.m. UTC | #2
On 12/05/20 08:01, Thomas Huth wrote:
> Seems like GCC v10 defaults to -fno-common now? Maybe we should add this
> to the CFLAGS of the kvm-unit-tests, so that we get the same behavior
> with all versions of the compiler?

Yes, good idea.

Paolo
diff mbox series

Patch

diff --git a/lib/x86/fault_test.c b/lib/x86/fault_test.c
index 078dae3..e15a218 100644
--- a/lib/x86/fault_test.c
+++ b/lib/x86/fault_test.c
@@ -1,6 +1,6 @@ 
 #include "fault_test.h"
 
-jmp_buf jmpbuf;
+static jmp_buf jmpbuf;
 
 static void restore_exec_to_jmpbuf(void)
 {
diff --git a/lib/x86/usermode.c b/lib/x86/usermode.c
index f01ad9b..f032523 100644
--- a/lib/x86/usermode.c
+++ b/lib/x86/usermode.c
@@ -14,7 +14,7 @@ 
 #define USERMODE_STACK_SIZE	0x2000
 #define RET_TO_KERNEL_IRQ	0x20
 
-jmp_buf jmpbuf;
+static jmp_buf jmpbuf;
 
 static void restore_exec_to_jmpbuf(void)
 {