libs/ctype/toupper_l: Implement function toupper_l instead of macro
toupper_l will be replaced by toupper, resulting in infinite recursion, so implement toupper_l
stack:
0 std::__1::ctype_byname<char>::do_toupper (this=0xf3888120, c=49 '1') at libcxx/src/locale.cpp:1231
1 0x005b8188 in std::__1::ctype<char>::toupper (__c=49 '1', this=0xf3888120) at nuttx/include/libcxx/__locale:667
2 std::__1::ctype_byname<char>::do_toupper (this=0xf3888120, c=49 '1') at libcxx/src/locale.cpp:1231
3 0x005b8188 in std::__1::ctype<char>::toupper (__c=49 '1', this=0xf3888120) at nuttx/include/libcxx/__locale:667
4 std::__1::ctype_byname<char>::do_toupper (this=0xf3888120, c=49 '1') at libcxx/src/locale.cpp:1231
5 0x0064cfc9 in std::__1::ctype<char>::toupper (__c=49 '1', this=0xf3888120) at nuttx/include/libcxx/__locale:667
6 std::__1::__scan_keyword<char*, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >*, std::__1::ctype<char> > (__b=@0xf38871a0: 0xf3887220 "11:55:59 PM",
__e=0xf388722b "", __kb=0xf2c03990, __ke=0xf2c03a38, __ct=..., __err=@0xf38871b0: 0, __case_sensitive=false) at nuttx/include/libcxx/locale:299
7 0x005cb0ed in std::__1::__time_get_storage<char>::__analyze (this=0xf2c0398c, fmt=114 'r', ct=...) at libcxx/src/locale.cpp:4998
8 0x005cf888 in std::__1::__time_get_storage<char>::init (this=0xf2c0398c, ct=...) at libcxx/src/locale.cpp:5295
9 0x005d4d0f in std::__1::__time_get_storage<char>::__time_get_storage (this=0xf2c0398c, __nm=...) at libcxx/src/locale.cpp:5399
10 0x005b15c8 in std::__1::time_get_byname<char, std::__1::istreambuf_iterator<char, std::__1::char_traits<char> > >::time_get_byname (__refs=0, __nm=..., this=0xf2c03980)
at nuttx/include/libcxx/locale:2446
11 std::__1::locale::__imp::__imp (this=0xf2803970, name=..., refs=0) at libcxx/src/locale.cpp:268
12 0x005b333e in std::__1::locale::locale (this=0xf3888f00, name=0x6ca340 "C") at libcxx/src/locale.cpp:562
13 0x0058313b in helloxx_main (argc=1, argv=0xf3878810) at helloxx_main.cxx:112
14 0x0048471a in nxtask_startup (entrypt=0x5830a0 <helloxx_main(int, char**)>, argc=1, argv=0xf3878810) at sched/task_startup.c:70
15 0x00431bcd in nxtask_start () at task/task_start.c:134
16 0x0048f643 in pre_start () at sim/sim_initialstate.c:52
17 0x00000000 in ?? ()
Signed-off-by: dongjiuzhu1 <dongjiuzhu1@xiaomi.com>
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