Re: [PATCH 1/1] util/getauxval: Porting to FreeBSD getauxval feature

[David CARLIER <devnexen@gmail.com>]

From d7f9d40777d1ed7c9450b0be4f957da2993dfc72 Mon Sep 17 00:00:00 2001
From: David Carlier <devnexen@gmail.com>
Date: Fri, 12 Jun 2020 09:39:17 +0100
Subject: [PATCH] util/getauxval: Porting to FreeBSD getauxval feature

FreeBSD has a similar API for auxiliary vector.

Signed-off-by: David Carlier <devnexen@gmail.com>
---
 util/getauxval.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/util/getauxval.c b/util/getauxval.c
index 36afdfb9e6..b124107d61 100644
--- a/util/getauxval.c
+++ b/util/getauxval.c
@@ -98,6 +98,16 @@ unsigned long qemu_getauxval(unsigned long type)
     return 0;
 }

+#elif defined(__FreeBSD__)
+#include <sys/auxv.h>
+
+unsigned long qemu_getauxval(unsigned long type)
+{
+    unsigned long aux = 0;
+    elf_aux_info(type, &aux, sizeof(aux));
+    return aux;
+}
+
 #else

 unsigned long qemu_getauxval(unsigned long type)
-- 
2.27.0

On Fri, 12 Jun 2020 at 08:13, Laurent Vivier <laurent@vivier.eu> wrote:
>
> Le 11/06/2020 à 23:10, David CARLIER a écrit :
> >
> Hi,
>
> please don't put your patch in attachements, you can use "git
> send-email" if your emailer doesn't allow it.
>
> https://wiki.qemu.org/Contribute/SubmitAPatch#Do_not_send_as_an_attachment
>
> I think your patch is not correct, you put a "#if defined(__linux__)" in
> a block that is followed by "#elif defined(__linux__)" and there is no
> return value if none of the "defined()" is true.
>
> I think you should not modify the configure and add directly a "#if
> defined(__FreeBSD__)" at the beginning of getauxval.c to define your
> function.
>
> Thanks,
> Laurent