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mintsuki 2023-09-17 23:16:50 -05:00
parent 2333175ac3
commit 878ca00f18
2 changed files with 16 additions and 3 deletions
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17
GNUmakefile
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@ -13,9 +13,17 @@ define DEFAULT_VAR =
endif
endef
# Compiler for building the 'limine' executable for the host.
# Toolchain for building the 'limine' executable for the host.
override DEFAULT_HOST_CC := cc
$(eval $(call DEFAULT_VAR,HOST_CC,$(DEFAULT_HOST_CC)))
override DEFAULT_HOST_CFLAGS := -g -O2 -pipe
$(eval $(call DEFAULT_VAR,HOST_CFLAGS,$(DEFAULT_HOST_CFLAGS)))
override DEFAULT_HOST_CPPFLAGS :=
$(eval $(call DEFAULT_VAR,HOST_CPPFLAGS,$(DEFAULT_HOST_CPPFLAGS)))
override DEFAULT_HOST_LDFLAGS :=
$(eval $(call DEFAULT_VAR,HOST_LDFLAGS,$(DEFAULT_HOST_LDFLAGS)))
override DEFAULT_HOST_LIBS :=
$(eval $(call DEFAULT_VAR,HOST_LIBS,$(DEFAULT_HOST_LIBS)))
.PHONY: all
all: $(IMAGE_NAME).iso
@ -45,7 +53,12 @@ ovmf:
limine:
git clone https://github.com/limine-bootloader/limine.git --branch=v5.x-branch-binary --depth=1
unset CC; unset CFLAGS; unset CPPFLAGS; unset LDFLAGS; unset LIBS; $(MAKE) -C limine CC="$(HOST_CC)"
$(MAKE) -C limine \
CC="$(HOST_CC)" \
CFLAGS="$(HOST_CFLAGS)" \
CPPFLAGS="$(HOST_CPPFLAGS)" \
LDFLAGS="$(HOST_LDFLAGS)" \
LIBS="$(HOST_LIBS)"
.PHONY: kernel
kernel:

2
kernel/kernel.c
View file

@ -91,7 +91,7 @@ void _start(void) {
// Note: we assume the framebuffer model is RGB with 32-bit pixels.
for (size_t i = 0; i < 100; i++) {
uint32_t *fb_ptr = framebuffer->address;
volatile uint32_t *fb_ptr = framebuffer->address;
fb_ptr[i * (framebuffer->pitch / 4) + i] = 0xffffff;
}