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.

5 files changed, 37 insertions, 5 deletions

diff --git a/lib/libc/string/Kbuild b/lib/libc/string/Kbuild
new file mode 100644
index 00000000..6fec9c43
--- /dev/null
+++ b/lib/libc/string/Kbuild
@@ -0,0 +1,32 @@
+obj-y += memccpy.o
+obj-y += memchr.o
+obj-y += memcmp.o
+obj-y += memcpy.o
+obj-y += memmem.o
+obj-y += memmove.o
+obj-y += memset.o
+obj-y += stpcpy.o
+obj-y += stpncpy.o
+obj-y += strcat.o
+obj-y += strchr.o
+obj-y += strcmp.o
+obj-y += strcoll.o
+obj-y += strcpy.o
+obj-y += strcspn.o
+obj-y += strdup.o
+obj-y += strerror.o
+obj-y += strlcat.o
+obj-y += strlcpy.o
+obj-y += strlen.o
+obj-y += strncat.o
+obj-y += strncmp.o
+obj-y += strncpy.o
+obj-y += strndup.o
+obj-y += strnlen.o
+obj-y += strpbrk.o
+obj-y += strrchr.o
+obj-y += strspn.o
+obj-y += strstr.o
+obj-y += strtok_r.o
+obj-y += strtok.o
+obj-y += strxfrm.o
diff --git a/lib/libc/string/memcpy.c b/lib/libc/string/memcpy.c
index 505cc622..ecdbd602 100644
--- a/lib/libc/string/memcpy.c
+++ b/lib/libc/string/memcpy.c
@@ -1,7 +1,7 @@
 #include <string.h>
 #include <features.h>
 
-weak void *memcpy(void *restrict s1, const void *restrict s2, size_t n);
+__weak void *memcpy(void *restrict s1, const void *restrict s2, size_t n);
 
 void *memcpy(void *restrict s1, const void *restrict s2, size_t n)
 {
diff --git a/lib/libc/string/strcoll.c b/lib/libc/string/strcoll.c
index 6b2e532a..6efaa3d3 100644
--- a/lib/libc/string/strcoll.c
+++ b/lib/libc/string/strcoll.c
@@ -7,7 +7,7 @@ int strcoll(const char *s1, const char *s2)
 	return strcmp(s1, s2);
 }
 
-weak int strcoll_l(const char *s1, const char *s2, locale_t unused locale)
+__weak int strcoll_l(const char *s1, const char *s2, locale_t __unused locale)
 {
 	return strcoll(s1, s2);
 }
diff --git a/lib/libc/string/strerror.c b/lib/libc/string/strerror.c
index 1d5903cb..c091ac79 100644
--- a/lib/libc/string/strerror.c
+++ b/lib/libc/string/strerror.c
@@ -119,7 +119,7 @@ int strerror_r(int errnum, char *buf, size_t buflen)
 	return 0;
 }
 
-weak char *strerror_l(int errnum, locale_t unused locale)
+__weak char *strerror_l(int errnum, locale_t __unused locale)
 {
 	return strerror(errnum);
 }
diff --git a/lib/libc/string/strxfrm.c b/lib/libc/string/strxfrm.c
index d62d0a96..123ebfe8 100644
--- a/lib/libc/string/strxfrm.c
+++ b/lib/libc/string/strxfrm.c
@@ -11,8 +11,8 @@ size_t strxfrm(char *restrict s1, const char *restrict s2, size_t n)
 	return len;
 }
 
-weak size_t strxfrm_l(char *restrict s1, const char *restrict s2, size_t n,
-		      locale_t unused locale)
+__weak size_t strxfrm_l(char *restrict s1, const char *restrict s2, size_t n,
+		      locale_t __unused locale)
 {
 	return strxfrm(s1, s2, n);
 }