[PATCH v3 2/2] loader: Mark thread_ldt, thread_data, wld_start "used".

[William Horvath]

From: William Horvath

---
 loader/preloader.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/loader/preloader.c b/loader/preloader.c
index d0551bae63a..3df0884d611 100644
--- a/loader/preloader.c
+++ b/loader/preloader.c
@@ -181,6 +181,7 @@ void __bb_init_func(void) { return; }

static int thread_data[256];

+__attribute__((used))
 struct
 {
     /* this is the kernel modify_ldt struct */
@@ -333,7 +334,7 @@ static inline int wld_prctl( int code, long arg )

#elif defined(__x86_64__)

-void *thread_data[256];
+void __attribute__((used)) *thread_data[256];

/*
  * The _start function is the entry and exit point of this program
@@ -422,7 +423,7 @@ SYSCALL_NOERR( wld_getegid, 108 /* SYS_getegid */ );

#elif defined(__aarch64__)

-void *thread_data[256];
+void __attribute__((used)) *thread_data[256];

/*
  * The _start function is the entry and exit point of this program
@@ -529,7 +530,7 @@ SYSCALL_NOERR( wld_getegid, 177 /* SYS_getegid */ );

#elif defined(__arm__)

-void *thread_data[256];
+void __attribute__((used)) *thread_data[256];

/*
  * The _start function is the entry and exit point of this program
@@ -1395,7 +1396,7 @@ static void set_process_name( int argc, char *argv[] )
  *  Load the binary and then its ELF interpreter.
  *  Note, we assume that the binary is a dynamically linked ELF shared object.
  */
-void* wld_start( void **stack )
+void* __attribute__((used)) wld_start( void **stack )
 {
     long i, *pargc;
     char **argv, **p;