More compat work. Rename libraries from LibFoo.a => libfoo.a

This makes it more straightforward to build a cross-compiler toolchain.
Also move math stuff from LibC to LibM.

Applications/About/Makefile

@@ -15,11 +15,12 @@ CXXFLAGS = -MMD -MP $(WARNING_FLAGS) $(OPTIMIZATION_FLAGS) $(FLAVOR_FLAGS) $(STA
 CXX = i686-pc-serenity-g++
 LD = i686-pc-serenity-ld
 AR = i686-pc-serenity-ar
+LDFLAGS = -L../../LibC -L../../LibGUI
 
 all: $(APP)
 
 $(APP): $(OBJS)
-	$(LD) -o $(APP) $(LDFLAGS) $(OBJS) ../../LibGUI/LibGUI.a ../../LibC/LibC.a
+	$(LD) -o $(APP) $(LDFLAGS) $(OBJS) -lgui -lc
 
 .cpp.o:
 	@echo "CXX $<"; $(CXX) $(CXXFLAGS) -o $@ -c $<

Applications/FileManager/Makefile

@@ -16,11 +16,12 @@ CXXFLAGS = -MMD -MP $(WARNING_FLAGS) $(OPTIMIZATION_FLAGS) $(FLAVOR_FLAGS) $(STA
 CXX = i686-pc-serenity-g++
 LD = i686-pc-serenity-ld
 AR = i686-pc-serenity-ar
+LDFLAGS = -L../../LibC -L../../LibGUI
 
 all: $(APP)
 
 $(APP): $(OBJS)
-	$(LD) -o $(APP) $(LDFLAGS) $(OBJS) ../../LibGUI/LibGUI.a ../../LibC/LibC.a
+	$(LD) -o $(APP) $(LDFLAGS) $(OBJS) -lgui -lc
 
 .cpp.o:
 	@echo "CXX $<"; $(CXX) $(CXXFLAGS) -o $@ -c $<

Applications/FontEditor/Makefile

@@ -16,11 +16,12 @@ CXXFLAGS = -MMD -MP $(WARNING_FLAGS) $(OPTIMIZATION_FLAGS) $(FLAVOR_FLAGS) $(STA
 CXX = i686-pc-serenity-g++
 LD = i686-pc-serenity-ld
 AR = i686-pc-serenity-ar
+LDFLAGS = -L../../LibC -L../../LibGUI
 
 all: $(APP)
 
 $(APP): $(OBJS)
-	$(LD) -o $(APP) $(LDFLAGS) $(OBJS) ../../LibGUI/LibGUI.a ../../LibC/LibC.a
+	$(LD) -o $(APP) $(LDFLAGS) $(OBJS) -lgui -lc
 
 .cpp.o:
 	@echo "CXX $<"; $(CXX) $(CXXFLAGS) -o $@ -c $<

Applications/Launcher/Makefile

@@ -15,11 +15,12 @@ CXXFLAGS = -MMD -MP $(WARNING_FLAGS) $(OPTIMIZATION_FLAGS) $(FLAVOR_FLAGS) $(STA
 CXX = i686-pc-serenity-g++
 LD = i686-pc-serenity-ld
 AR = i686-pc-serenity-ar
+LDFLAGS = -L../../LibC -L../../LibGUI
 
 all: $(APP)
 
 $(APP): $(OBJS)
-	$(LD) -o $(APP) $(LDFLAGS) $(OBJS) ../../LibGUI/LibGUI.a ../../LibC/LibC.a
+	$(LD) -o $(APP) $(LDFLAGS) $(OBJS) -lgui -lc
 
 .cpp.o:
 	@echo "CXX $<"; $(CXX) $(CXXFLAGS) -o $@ -c $<

Applications/Terminal/Makefile

@@ -16,11 +16,12 @@ CXXFLAGS = -MMD -MP $(WARNING_FLAGS) $(OPTIMIZATION_FLAGS) $(FLAVOR_FLAGS) $(STA
 CXX = i686-pc-serenity-g++
 LD = i686-pc-serenity-ld
 AR = i686-pc-serenity-ar
+LDFLAGS = -L../../LibC -L../../LibGUI
 
 all: $(APP)
 
 $(APP): $(OBJS)
-	$(LD) -o $(APP) $(LDFLAGS) $(OBJS) ../../LibGUI/LibGUI.a ../../LibC/LibC.a
+	$(LD) -o $(APP) $(LDFLAGS) $(OBJS) -lgui -lc
 
 .cpp.o:
 	@echo "CXX $<"; $(CXX) $(CXXFLAGS) -o $@ -c $<

Kernel/Syscall.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <AK/Types.h>
+#include <LibC/fd_set.h>
 
 #define ENUMERATE_SYSCALLS \
     __ENUMERATE_SYSCALL(sleep) \
@@ -83,10 +84,6 @@
     __ENUMERATE_SYSCALL(link) \
 
 
-#ifdef SERENITY
-struct fd_set;
-#endif
-
 namespace Syscall {
 
 enum Function {

Kernel/UnixTypes.h

@@ -1,8 +1,5 @@
 #pragma once
 
-#define FD_SETSIZE 64
-struct fd_set { unsigned char bits[FD_SETSIZE / 8];  };
-
 #define WNOHANG 1
 
 #define SIG_DFL ((void*)0)

Kernel/makeall.sh

@@ -4,8 +4,15 @@ sudo id
 
 make_cmd="make -j2"
 
+rm -r ../Root/usr && \
 $make_cmd -C ../LibC clean && \
 $make_cmd -C ../LibC && \
+(cd ../LibC && ./install.sh) && \
+$make_cmd -C ../LibM clean && \
+$make_cmd -C ../LibM && \
+(cd ../LibM && ./install.sh) && \
+$make_cmd -C ../LibM clean && \
+$make_cmd -C ../LibM clean && \
 $make_cmd -C ../LibGUI clean && \
 $make_cmd -C ../LibGUI && \
 $make_cmd -C ../Userland clean && \

LibC/.gitignore

@@ -1,4 +1,4 @@
 *.o
 *.no
 *.d
-LibC.a
+libc.a

LibC/Makefile

@@ -32,7 +32,6 @@ LIBC_OBJS = \
        ulimit.o \
        qsort.o \
        ioctl.o \
-       math.o \
        utime.o \
        sys/select.o \
        sys/socket.o \
@@ -45,7 +44,7 @@ ASM_OBJS = setjmp.no
 
 CPP_OBJS = $(AK_OBJS) $(WIDGETS_OBJS) $(LIBC_OBJS)
 
-LIBRARY = LibC.a
+LIBRARY = libc.a
 STANDARD_FLAGS = -std=c++17
 WARNING_FLAGS = -Wextra -Wall -Wundef -Wcast-qual -Wwrite-strings -Wimplicit-fallthrough
 FLAVOR_FLAGS = -fno-exceptions -fno-rtti

LibC/fd_set.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#define FD_SETSIZE 64
+#define FD_ZERO(set) memset((set), 0, sizeof(fd_set));
+#define FD_CLR(fd, set) ((set)->bits[(fd / 8)] &= ~(1 << (fd) % 8))
+#define FD_SET(fd, set) ((set)->bits[(fd / 8)] |= (1 << (fd) % 8))
+#define FD_ISSET(fd, set) ((set)->bits[(fd / 8)] & (1 << (fd) % 8))
+
+struct __fd_set {
+    unsigned char bits[FD_SETSIZE / 8];
+};
+
+typedef struct __fd_set fd_set;

LibC/install.sh

@@ -1,5 +1,7 @@
 #!/bin/bash
 
 mkdir -p ../Root/usr/include/sys/
+mkdir -p ../Root/usr/lib/
 cp *.h ../Root/usr/include/
 cp sys/*.h ../Root/usr/include/sys/
+cp libc.a ../Root/usr/lib/

LibC/math.cpp

@@ -1,14 +0,0 @@
-#include <math.h>
-#include <assert.h>
-
-extern "C" {
-
-double pow(double x, double y)
-{
-    (void) x;
-    (void) y;
-    assert(false);
-}
-
-}
-

LibC/sys/select.h

@@ -3,21 +3,10 @@
 #include <sys/cdefs.h>
 #include <sys/types.h>
 #include <string.h>
+#include <fd_set.h>
 
 __BEGIN_DECLS
 
-#define FD_SETSIZE 64
-#define FD_ZERO(set) memset((set), 0, sizeof(fd_set));
-#define FD_CLR(fd, set) ((set)->bits[(fd / 8)] &= ~(1 << (fd) % 8))
-#define FD_SET(fd, set) ((set)->bits[(fd / 8)] |= (1 << (fd) % 8))
-#define FD_ISSET(fd, set) ((set)->bits[(fd / 8)] & (1 << (fd) % 8))
-
-struct __fd_set {
-    unsigned char bits[FD_SETSIZE / 8];
-};
-
-typedef struct __fd_set fd_set;
-
 int select(int nfds, fd_set* readfds, fd_set* writefds, fd_set* exceptfds, struct timeval* timeout);
 
 __END_DECLS

LibGUI/.gitignore

@@ -1,3 +1,3 @@
 *.o
 *.d
-LibGUI.a
+libgui.a

LibGUI/Makefile

@@ -32,9 +32,9 @@ LIBGUI_OBJS = \
 
 OBJS = $(SHAREDGRAPHICS_OBJS) $(LIBGUI_OBJS)
 
-LIBS = ../LibC/LibC.a
+LIBS = -lc
 
-LIBRARY = LibGUI.a
+LIBRARY = libgui.a
 STANDARD_FLAGS = -std=c++17
 WARNING_FLAGS = -Wextra -Wall -Wundef -Wcast-qual -Wwrite-strings -Wimplicit-fallthrough
 FLAVOR_FLAGS = -fno-exceptions -fno-rtti

LibM/.gitignore

@@ -0,0 +1,3 @@
+*.o
+*.d
+libm.a

LibM/Makefile

@@ -0,0 +1,32 @@
+OBJS = math.o
+
+LIBRARY = libm.a
+STANDARD_FLAGS = -std=c++17
+WARNING_FLAGS = -Wextra -Wall -Wundef -Wcast-qual -Wwrite-strings -Wimplicit-fallthrough
+FLAVOR_FLAGS = -fno-exceptions -fno-rtti
+OPTIMIZATION_FLAGS = -Os
+INCLUDE_FLAGS = -I.. -I.
+
+DEFINES = -DSERENITY -DUSERLAND -DSANITIZE_PTRS
+
+CXXFLAGS = -MMD -MP $(WARNING_FLAGS) $(OPTIMIZATION_FLAGS) $(FLAVOR_FLAGS) $(STANDARD_FLAGS) $(INCLUDE_FLAGS) $(DEFINES)
+CXX = i686-pc-serenity-g++
+LD = i686-pc-serenity-ld
+AR = i686-pc-serenity-ar
+
+all: $(LIBRARY)
+
+$(LIBRARY): $(OBJS)
+	@echo "LIB $@"; $(AR) rcs $@ $(OBJS)
+
+.cpp.o:
+	@echo "CXX $<"; $(CXX) $(CXXFLAGS) -o $@ -c $<
+
+%.no: %.asm
+	@echo "NASM $@"; nasm -f elf -o $@ $<
+
+-include $(OBJS:%.o=%.d)
+
+clean:
+	@echo "CLEAN"; rm -f $(LIBRARY) $(OBJS) *.d
+

LibM/install.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+mkdir -p ../Root/usr/include/sys/
+mkdir -p ../Root/usr/lib/
+cp *.h ../Root/usr/include/
+cp libm.a ../Root/usr/lib/

LibM/math.cpp

@@ -0,0 +1,23 @@
+#include <LibC/assert.h>
+#include <LibM/math.h>
+
+extern "C" {
+
+double cos(double)
+{
+    assert(false);
+}
+
+double sin(double)
+{
+    assert(false);
+}
+
+double pow(double x, double y)
+{
+    (void)x;
+    (void)y;
+    assert(false);
+}
+
+}

Userland/Makefile

@@ -82,110 +82,111 @@ CXXFLAGS = -MMD -MP $(WARNING_FLAGS) $(OPTIMIZATION_FLAGS) $(FLAVOR_FLAGS) $(ARC
 CXX = i686-pc-serenity-g++
 LD = i686-pc-serenity-ld
 AR = i686-pc-serenity-r
+LDFLAGS = -L ../LibC
 
 all: $(OBJS) $(APPS)
 
 id: id.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 sh: sh.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 ps: ps.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 ls: ls.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 fgrep: fgrep.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 sleep: sleep.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 date: date.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 true: true.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 false: false.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 hostname: hostname.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 cat: cat.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 uname: uname.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 clear: clear.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 tst: tst.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 mm: mm.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 dmesg: dmesg.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 kill: kill.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 tty: tty.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 mkdir: mkdir.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 touch: touch.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 sync: sync.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 more: more.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 guitest2: guitest2.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibGUI/LibGUI.a ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) -L../LibGUI $< -lgui -lc
 
 sysctl: sysctl.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 pape: pape.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 cp: cp.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 rm: rm.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 rmdir: rmdir.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 chmod: chmod.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 top: top.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 ln: ln.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 df: df.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 su: su.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 env: env.o
-	$(LD) -o $@ $(LDFLAGS) $< ../LibC/LibC.a
+	$(LD) -o $@ $(LDFLAGS) $< -lc
 
 .cpp.o:
 	@echo "CXX $<"; $(CXX) $(CXXFLAGS) -o $@ -c $<

WindowServer/Makefile

@@ -27,6 +27,7 @@ WARNING_FLAGS = -Wextra -Wall -Wundef -Wcast-qual -Wwrite-strings -Wimplicit-fal
 FLAVOR_FLAGS = -fno-exceptions -fno-rtti
 OPTIMIZATION_FLAGS = -Os
 INCLUDE_FLAGS = -I.. -I. -I../LibC
+LDFLAGS = -L../LibC
 
 DEFINES = -DSERENITY -DSANITIZE_PTRS -DUSERLAND
 
@@ -38,7 +39,7 @@ AR = i686-pc-serenity-ar
 all: $(APP)
 
 $(APP): $(OBJS)
-	$(LD) -o $(APP) $(LDFLAGS) $(OBJS) ../LibC/LibC.a
+	$(LD) -o $(APP) $(LDFLAGS) $(OBJS) -lc
 
 .cpp.o:
 	@echo "CXX $<"; $(CXX) $(CXXFLAGS) -o $@ -c $<