The bionic libc test test_executable_destructor fails

[jzk66596]

Description
The test_executable_destructor tries to test constructor and destructor functions in executables. But it fails with trapframe printed. See "Current result" for details.

Reproduce steps
cd ~/ucore_plus/ucore
make ARCH=arm BOARD=goldfishv7 defconfig
make sfsimg
make kernel
./uCore_test -s bionic -w 15 -t 45 -f src/user-ucore/testspecs/test_executable_destructor.testspec

Current result
kernel_execve: pid = 4, name = "/bionic-test/test_executable_destructor".
trapframe at 0x7e0af68
r00 0x00000004
r01 0x6fffdf78
r02 0x6fffdfcc
r03 0x6fffdf78
r04 0x30809000
r05 0x00000000
r06 0x00000000
r07 0x0000004b
r08 0x00000000
r09 0x00000000
r10 0x00000000
fp 0x6fffdf94
ip 0x3080902c
usr_lr 0x3080084c
sp 0x6fffdf70
lr 0x6fe81178
spsr 0x60000050 User
trap 0x00000002 Software interrupt
err 0x00000000
undefined syscall 0, pid = 4, name = 4.

Expected Result
The test passes with no trapframe printed but the right output information "OK".