[Qemu-devel] [PATCH] linux-user/main.c: Always set QEMU_LD_PREFIX when interp_prefix is changed

[gang . chen . 5i5j]

From: Chen Gang <gang.chen.5...@gmail.com>

If qemu sets interp_prfix via command line '-L' instead of environments
variable QEMU_LD_PREFIX, it will cause syscall execve() failed. Because
the 2nd qemu has no command line '-L'.

So qemu need always set QEMU_LD_PREFIX when interp_prefix is changed.

Signed-off-by: Chen Gang <gang.chen.5...@gmail.com>
---
 linux-user/main.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/linux-user/main.c b/linux-user/main.c
index 06dd296..2f31ea6 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -3539,7 +3539,11 @@ static void handle_arg_stack_size(const char *arg)
 
 static void handle_arg_ld_prefix(const char *arg)
 {
+    char *buf = g_strdup_printf("QEMU_LD_PREFIX=%s", arg);
+
     interp_prefix = strdup(arg);
+    (void) envlist_setenv(envlist, buf);
+    g_free(buf);
 }
 
 static void handle_arg_pagesize(const char *arg)
-- 
1.9.1