kumquat-buildroot/package/qemu/4.2.0/0001-user-exec-fix-usage-of-mcontext-structure-on-ARM-uCl.patch
Adam Duskett 0ea17054ce package/qemu: Bump to version 4.2.0
Other changes:
  - Remove upstream patches
  - Update COPYING.LIB hash as upstream updated the file to match the new LGPL
    2.1 license from upstream. See:
    f0d44cc446

Signed-off-by: Adam Duskett <Aduskett@gmail.com>
Tested-by: Romain Naour <romain.naour@gmail.com>
[Peter: change libssh2 to libssh as pointed out by Vincent Fazio]
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2020-02-16 20:16:13 +01:00

36 lines
1.3 KiB
Diff

From d3f1e7e9ff9aae3f770b0bcb9aa3c2f787f76a1b Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Fri, 5 May 2017 09:07:15 +0200
Subject: [PATCH] user-exec: fix usage of mcontext structure on ARM/uClibc
user-exec.c has some conditional code to decide how to use the
mcontext structure. Unfortunately, since uClibc defines __GLIBC__, but
with old versions of __GLIBC__ and __GLIBC_MINOR__, an old code path
gets used, which doesn't apply to uClibc.
Fix this by excluding __UCLIBC__, which ensures we fall back to the
general case of using uc_mcontext.arm_pc, which works fine with
uClibc.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
user-exec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c
index 6db0758..2b3d116 100644
--- a/accel/tcg/user-exec.c
+++ b/accel/tcg/user-exec.c
@@ -506,7 +506,7 @@ int cpu_signal_handler(int host_signum, void *pinfo,
#if defined(__NetBSD__)
pc = uc->uc_mcontext.__gregs[_REG_R15];
-#elif defined(__GLIBC__) && (__GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ <= 3))
+#elif defined(__GLIBC__) && !defined(__UCLIBC__) && (__GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ <= 3))
pc = uc->uc_mcontext.gregs[R15];
#else
pc = uc->uc_mcontext.arm_pc;
--
2.7.4