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Add ability to disable debug printing and gdb symbols

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This commit is contained in:
Thomas Lovén 2017-12-07 12:59:01 +01:00
parent a9831c1038
commit 572bee19cc
3 changed files with 11 additions and 2 deletions
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5
src/kernel/Makefile
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@ -7,8 +7,13 @@ OBJ := $(patsubst %, %.o, $(basename $(SRC)))
CFLAGS ?= -Wall -Wextra -pedantic
CFLAGS += -ffreestanding -mcmodel=large
ifndef NDEBUG
CFLAGS += -ggdb -O0
ASFLAGS += -ggdb
else
CFLAGS += -O3 -mno-sse
CPPFLAGS += -DNDEBUG
endif
CPPFLAGS += -I include
LDFLAGS := -n -nostdlib -lgcc -T Link.ld

4
src/kernel/boot/kmain.c
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@ -8,8 +8,8 @@ void kmain()
serial_init(PORT_COM1);
vga_init();
debug_printf("Hello from debug printing function!\n");
debug_printf("A number:%d\n", 12345);
debug("Hello from debug printing function!\n");
debug("A number:%d\n", 12345);
for(;;);
}

4
src/kernel/include/debug.h
View File

@ -2,7 +2,11 @@
#include <stddef.h>
#include <stdarg.h>
#ifndef NDEBUG
#define debug(...) debug_printf(__VA_ARGS__)
#else
#define debug(...)
#endif
void debug_putch(char c);
void debug_putsn(char *s, size_t n);