chore: lib/ cleanup

lib/Makefile

@@ -1,11 +1,11 @@
-SUBDIRS = crypto
+SUBDIRS = csu crypto
 
 TOPGOALS = all clean install
 
 .PHONY: $(SUBDIRS)
 $(SUBDIRS):
 	@echo "📁 lib/$@"
-	@DESTDIR=$(DESTDIR)/lib $(MAKE) -C $@ $(MAKECMDGOALS)
+	@DESTDIR=$(DESTDIR)/usr/lib $(MAKE) -C $@ $(MAKECMDGOALS)
 
 .PHONY: $(TOPGOALS)
 $(TOPGOALS): $(SUBDIRS)

lib/crypto/Makefile

@@ -1,5 +1,17 @@
-all:
+TARGET	= libcrypto.a
+OBJS	= hash/sha256.o
+
+all: $(TARGET)
+
+$(TARGET): $(OBJS)
+	$(AR) rcs $@ $^
+
+%.o: %.asm
+	$(AS) $< $@
 
 clean:
+	$(RM) $(TARGET) $(OBJS)
 
-install:
+install: $(TARGET)
+	@ mkdir -p $(DESTDIR)
+	install $(TARGET) $(DESTDIR)

lib/crypto/hash/sha256.s → lib/crypto/hash/sha256.asm

@@ -5,22 +5,23 @@
 ;
 ; About: CPU compatibility
 ; /!\ Only work on *486+* due to bswap for now.
-[BITS 32]
+	format COFF
+	use32
 
-section .rodata
+	section '.data' data
 ; Constant: K
 ; SHA-256 round constants 
 K:
-	dd 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
-	dd 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
-	dd 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
-	dd 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
-	dd 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
-	dd 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
-	dd 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
+	dd 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5
+	dd 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174
+	dd 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da
+	dd 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967
+	dd 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85
+	dd 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070
+	dd 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3
 	dd 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
 
-section .text
+section '.text' code
 
 	; Function: sha256_compute_block
 sha256_compute_block:
@@ -89,7 +90,7 @@ sha256_internal:
 	; out:
 	;     none
 	;
-global sha256
+	public sha256
 sha256:
 	push ebp
 	mov ebp, esp

lib/csu/Makefile

@@ -0,0 +1,13 @@
+TARGET	= crt0.o
+
+all: $(TARGET)
+
+%.o: %.asm
+	$(AS) $< $@
+
+clean:
+	$(RM) $(TARGET)
+
+install: $(TARGET)
+	@ mkdir -p $(DESTDIR)
+	install $(TARGET) $(DESTDIR)

lib/csu/crt0.asm

@@ -0,0 +1,18 @@
+	format COFF
+	use32
+
+	public _start
+
+	extrn main
+	extrn exit
+
+	section '.text' code
+
+	public _start
+_start:
+
+	xor ebp, ebp
+	call main
+
+	call exit
+