build: wire malloc/string/ctype sources and tests

Makefile.am

@@ -59,11 +59,35 @@ VLIBC_CORE_SRCS = \
     src/string/strcmp.c \
     src/string/memcpy.c \
     src/string/memmove.c \
-    src/string/memset.c
+    src/string/memset.c \
+    src/string/strcat.c \
+    src/string/strchr.c \
+    src/string/strcoll.c \
+    src/string/strcpy.c \
+    src/string/strdup.c \
+    src/string/memchr.c \
+    src/string/memcmp.c \
+    src/string/strncmp.c \
+    src/string/strncpy.c \
+    src/string/strnlen.c \
+    src/string/strsignal.c \
+    src/string/strspn.c \
+    src/string/strstr.c \
+    src/string/strtok.c \
+    src/malloc/malloc.c \
+    src/ctype/ctype.c
 
 # Profile-gated sources, EXISTING gates preserved (strlcpy/strlcat stay L2
-# BSD, strcasestr stays L3 GNU — NOT promoted).
+# BSD, strcasestr stays L3 GNU — NOT promoted). Task 8/9 additions: stpcpy.c
-VLIBC_LEVEL2_SRCS = src/string/strlcpy.c src/string/strlcat.c
+# (stpcpy/stpncpy) and memccpy.c are WHOLE-FILE L2-gated (#if VLIBC_LEVEL_GE(2)
+# around the entire body), and isascii.c/toascii.c hold only L2 symbols
+# (the header gates their declarations) — all four must be omitted from a
+# level-1 profile, so they join the GE_2 conditional list. Files with L1
+# bodies plus small L2 sections (strcoll.c, strdup.c) stay in VLIBC_CORE_SRCS
+# and self-gate at level 1.
+VLIBC_LEVEL2_SRCS = src/string/strlcpy.c src/string/strlcat.c \
+    src/string/stpcpy.c src/string/memccpy.c \
+    src/ctype/isascii.c src/ctype/toascii.c
 VLIBC_LEVEL3_SRCS = src/string/strcasestr.c
 
 vlibc_lib_LTLIBRARIES = libvlibc.la
@@ -88,6 +112,7 @@ vlibc_include_HEADERS = \
     include/errno.h \
     include/setjmp.h \
     include/assert.h \
+    include/ctype.h \
     include/cpio.h \
     include/float.h \
     include/iso646.h \
@@ -99,6 +124,7 @@ vlibc_include_HEADERS = \
     include/stdbool.h \
     include/stdckdint.h \
     include/stdint.h \
+    include/stdlib.h \
     include/stdnoreturn.h \
     include/tar.h \
     include/tgmath.h \
@@ -232,7 +258,7 @@ VLIBC_TEST_CFLAGS = -DVLIBC_LEVEL=$(VLIBC_TEST_LEVEL) -fno-stack-protector \
     -fno-pic -fno-pie
 
 check_PROGRAMS = test_syscall test_strerror test_setjmp test_headers \
-    test_startup
+    test_startup test_malloc test_string test_ctype
 
 test_syscall_SOURCES = tests/syscall_test.c
 test_syscall_CFLAGS = $(VLIBC_TEST_CFLAGS)
@@ -264,10 +290,31 @@ test_startup_DEPENDENCIES = crt1.o libvlibc-check.a
 test_startup_LINK = $(VLIBC_TEST_LINK)
 test_startup_LDADD = $(VLIBC_TEST_LDADD)
 
+test_malloc_SOURCES = tests/test_malloc.c
+test_malloc_CFLAGS = $(VLIBC_TEST_CFLAGS)
+test_malloc_DEPENDENCIES = crt1.o libvlibc-check.a
+test_malloc_LINK = $(VLIBC_TEST_LINK)
+test_malloc_LDADD = $(VLIBC_TEST_LDADD)
+
+test_string_SOURCES = tests/test_string.c
+test_string_CFLAGS = $(VLIBC_TEST_CFLAGS)
+test_string_DEPENDENCIES = crt1.o libvlibc-check.a
+test_string_LINK = $(VLIBC_TEST_LINK)
+test_string_LDADD = $(VLIBC_TEST_LDADD)
+
+test_ctype_SOURCES = tests/test_ctype.c
+test_ctype_CFLAGS = $(VLIBC_TEST_CFLAGS)
+test_ctype_DEPENDENCIES = crt1.o libvlibc-check.a
+test_ctype_LINK = $(VLIBC_TEST_LINK)
+test_ctype_LDADD = $(VLIBC_TEST_LDADD)
+
 # test_startup's default mode exits 42 by design, so it is NOT a bare TESTS
 # entry; tests/startup_modes.sh runs its full mode matrix and the -f failure
-# scenarios of the other four binaries.
+# scenarios of the other binaries. test_malloc/test_string/test_ctype default
+# to the happy mode (exit 0 on all-pass) and are bare TESTS entries; their
+# -f/-p modes stay runnable by hand.
 TESTS = test_syscall test_strerror test_setjmp test_headers \
+    test_malloc test_string test_ctype \
     tests/startup_modes.sh
 
 CLEANFILES = crt1.o libvlibc-check.a $(VLIBC_CHECK_OBJECTS)
@@ -283,6 +330,7 @@ EXTRA_DIST = \
     src/internal/atomic.h \
     src/internal/errno.h \
     src/internal/libc.h \
+    src/internal/malloc.h \
     src/internal/syscall.h \
     src/internal/types.h \
     src/start/start.h \