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- bootloader prepared for use mit mips debugger

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- changed address of debugger entry
- mips_dbg: no use om memset and memcpy

git-svn-id: http://moon:8086/svn/mips@120 a8ebac50-d88d-4704-bea3-6648445a41b3
This commit is contained in:
jens
2017-01-22 14:30:49 +00:00
parent e86064fd65
commit 273b7a6a79
7 changed files with 82 additions and 17 deletions
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src/bootloader/Makefile
+20 -4
View File
@@ -5,14 +5,24 @@
BOARD ?= ml402
TLB ?= no
ENDIANESS ?= eb
DEBUGGER ?= gdb
ifeq ($(ENDIANESS),el)
ENDIAN_FLAGS=-EL
else
ENDIAN_FLAGS=-EB
endif
CFLAGS=$(ENDIAN_FLAGS) -Os -flto -Wl,-M -I. -I../libsys -msoft-float -march=r3000 -G0 -I../libsys/boards/$(BOARD) -D$(BOARD) -DWITH_DEBUGGER -DWITH_GDB_STUB
ifeq ($(DEBUGGER),gdb)
DBG_FLAGS := -DWITH_DEBUGGER -DWITH_GDB_STUB
DBG_OBJ := gdb_stub.o
endif
ifeq ($(DEBUGGER),mips)
DBG_FLAGS := -DWITH_DEBUGGER
DBG_OBJ := mips_dbg.o mips_dis.o
endif
CFLAGS=$(ENDIAN_FLAGS) -Os -flto -Wl,-M -I. -I../libsys -msoft-float -march=r3000 -G0 -I../libsys/boards/$(BOARD) -D$(BOARD) $(DBG_FLAGS)
LFLAGS=$(ENDIAN_FLAGS) -Os -flto -nostartfiles -nodefaultlibs -nostdlib
ifeq ($(TLB),yes)
@@ -38,8 +48,8 @@ ROMGEN=$(MIPS_HOME)/tools/romgen
all: $(BUILD_DIR) $(BUILD_DIR)/bootloader.elf $(BUILD_DIR)/bootloader_with_flash.elf
OBJS-ml402=$(addprefix $(BUILD_DIR)/, startup.o kernel.o cop0.o libsys.o srec.o board.o uart.o gdb_stub.o)
OBJS-denano=$(addprefix $(BUILD_DIR)/, startup.o kernel.o cop0.o libsys.o srec.o board.o uart.o gdb_stub.o)
OBJS-ml402=$(addprefix $(BUILD_DIR)/, startup.o kernel.o cop0.o libsys.o srec.o board.o uart.o $(DBG_OBJ))
OBJS-denano=$(addprefix $(BUILD_DIR)/, startup.o kernel.o cop0.o libsys.o srec.o board.o uart.o $(DBG_OBJ))
$(BUILD_DIR)/cop0.o : ../libsys/cop0.c
$(CC) $(CFLAGS) -c -o $@ $<
@@ -50,6 +60,12 @@ $(BUILD_DIR)/uart.o : ../libsys/uart.c
$(BUILD_DIR)/board.o : boards/$(BOARD)/board.c
$(CC) $(CFLAGS) -c -o $@ $<
$(BUILD_DIR)/mips_dbg.o : ../libsys/mips_dbg.c
$(CC) $(CFLAGS) -c -o $@ $<
$(BUILD_DIR)/mips_dis.o : ../libsys/mips_dis.c
$(CC) $(CFLAGS) -c -o $@ $<
$(BUILD_DIR)/gdb_stub.o : ../libsys/gdb_stub.c
$(CC) $(CFLAGS) -c -o $@ $<
src/bootloader/boards/denano/board.c
+7 -2
View File
@@ -12,9 +12,14 @@
#ifdef WITH_DEBUGGER
extern uart_if_t uart_if[];
extern void handle_exception (unsigned long *registers);
extern int dbg_stub(struct xcptcontext * xcp) __attribute__ ((section (".dbg_stub"))) __attribute__ ((used));
#ifdef WITH_GDB_STUB
extern void handle_exception (unsigned long *registers);
#else
extern int dbg_handler(struct xcptcontext * xcp);
#endif
int dbg_stub(struct xcptcontext * xcp) __attribute__ ((section (".dbg_stub"))) __attribute__ ((used));
int dbg_stub(struct xcptcontext * xcp)
{
#ifdef WITH_GDB_STUB
src/bootloader/bootloader.ld
+1 -1
View File
@@ -21,7 +21,7 @@ SECTIONS
*(.ktext)
*(.text*)
*(.rodata*)
. = ORIGIN(rom) + LENGTH(rom) - 0x100;
. = ORIGIN(rom) + LENGTH(rom) - 0x40;
*(.dbg_stub*)
} > rom