Add bin/true and bin/false implementations

- Added assembly implementations for `true` and `false` commands.
- Updated Kbuild files to include new binaries.
- Removed unused libraries and headers.
- Cleaned up makefile and unused code.

2 files changed, 22 insertions, 0 deletions

diff --git a/lib/libc/signal/Kbuild b/lib/libc/signal/Kbuild
new file mode 100644
index 00000000..b8881c92
--- /dev/null
+++ b/lib/libc/signal/Kbuild
@@ -0,0 +1,21 @@
+obj-y += kill.o
+obj-y += killpg.o
+obj-y += psiginfo.o
+obj-y += psignal.o
+obj-y += pthread_kill.o
+obj-y += pthread_sigmask.o
+obj-y += raise.o
+obj-y += sig2str.o
+obj-y += sigaction.o
+obj-y += sigaddset.o
+obj-y += sigemptyset.o
+obj-y += sigismember.o
+obj-y += signal.o
+obj-y += sigpending.o
+obj-y += sigprocmask.o
+obj-y += sigqueue.o
+obj-y += sigsuspend.o
+obj-y += sigtimedwait.o
+obj-y += sigwait.o
+obj-y += sigwaitinfo.o
+obj-y += str2sig.o
diff --git a/lib/libc/signal/pthread_sigmask.c b/lib/libc/signal/pthread_sigmask.c
index 1b83e1fe..4fcc278f 100644
--- a/lib/libc/signal/pthread_sigmask.c
+++ b/lib/libc/signal/pthread_sigmask.c
@@ -1,6 +1,7 @@
 #include <errno.h>
 #include <asm-generic/signal.h>
 #include <libc.h>
+#include <stddef.h>
 
 int sigdelset(sigset_t *, int);
 int sigismember(const sigset_t *, int);