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2002-03-05 Greg Menke <gregory.menke@gsfc.nasa.gov>

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* startup/gdb-support.c: Added calls into the mips-support gdb stub
	for configuring the memory regions.  Any bsp that wants to use the
	gdbstub will need to do something similar.
	* startup/Makefile.am: Added shared/gdbstub directory to include path.
This commit is contained in:
Joel Sherrill
2002-03-08 16:26:03 +00:00
parent 8264d230a9
commit ffdc6591ee
3 changed files with 54 additions and 7 deletions
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7
c/src/lib/libbsp/mips/genmongoosev/ChangeLog
View File

@@ -1,3 +1,10 @@
2002-03-05 Greg Menke <gregory.menke@gsfc.nasa.gov>
* startup/gdb-support.c: Added calls into the mips-support gdb stub
for configuring the memory regions. Any bsp that wants to use the
gdbstub will need to do something similar.
* startup/Makefile.am: Added shared/gdbstub directory to include path.
2002-02-27 Greg Menke <gregory.menke@gsfc.nasa.gov>
* start/start.S: Added kseg1 test to enable cache flush code

2
c/src/lib/libbsp/mips/genmongoosev/startup/Makefile.am
View File

@@ -22,6 +22,8 @@ include $(top_srcdir)/../../../../../../automake/lib.am
# (OPTIONAL) Add local stuff here using +=
#
AM_CPPFLAGS += -I @srcdir@/../../shared/gdbstub
$(PGM): $(OBJS)
$(make-rel)

52
c/src/lib/libbsp/mips/genmongoosev/startup/gdb-support.c
View File

@@ -14,6 +14,7 @@
#include <rtems.h>
#include <rtems/bspIo.h>
#include <libcpu/mongoose-v.h>
#include "gdb_if.h"
#include <rtems/libio.h>
@@ -36,13 +37,12 @@ extern void mg5uart_write_polled(int minor, char c );
extern int mg5uart_inbyte_nonblocking_polled(int minor);
extern void mips_gdb_stub_install(void);
static int debugUartEnabled = 0;
int mg5rdbgOpenGDBuart(int breakoninit)
{
struct termios t;
@@ -61,24 +61,36 @@ int mg5rdbgOpenGDBuart(int breakoninit)
printf("gdbstub: Failed to configure UART 2 for 19200N82\n");
return -1;
}
printf("gdbstub: UART 2 configured for 19200N82\n");
debugUartEnabled = -1;
/* set up vectoring for gdb */
mips_gdb_stub_install();
mips_gdb_stub_install(-1);
/*
this is a rough approximation of our memory map. Yours is
probably different. It only needs to be sufficient for the stub
to know what it can and can't do and where.
*/
gdbstub_add_memsegment(0 , 0x8001ffff, MEMOPT_READABLE );
gdbstub_add_memsegment(0x80020000, 0x80afffff, MEMOPT_READABLE | MEMOPT_WRITEABLE );
gdbstub_add_memsegment(0x80b00000, 0x814fffff, MEMOPT_READABLE );
gdbstub_add_memsegment(0x81500000, 0x81ffffff, MEMOPT_READABLE | MEMOPT_WRITEABLE );
printf("gdbstub: Remote GDB stub listening on UART 2 at 19200N82\n");
if( breakoninit )
{
printf("gdbstub: GDB stub entered, connect host debugger now\n");
/*
break to gdb. We'll wait there for the operator to get their gdb
going, then they can 'continue' or do whatever.
*/
mips_break(0);
printf("gdbstub: User code running\n");
}
printf("gdbstub: User code running\n");
else
printf("gdbstub: GDB stub ready for exceptions\n");
return RTEMS_SUCCESSFUL;
}
@@ -113,3 +125,29 @@ void putDebugChar (char c)
return mg5uart_write_polled(1,c);
}
/*
{
* initialize hardware pc and data breakpoints to quiet state*
unsigned32 dcic, reg, mask;
reg = 0xffffffff;
mask = 0xffffffff;
mips_set_bpcrm( reg, mask );
mips_set_bdarm( reg, mask );
mips_get_dcic( dcic );
* configure dcic for trapping, user & kernel mode, PC traps and enable it *
dcic = DCIC_TR | DCIC_UD | DCIC_KD | DCIC_PCE | DCIC_DE;
* dcic = DCIC_UD | DCIC_KD | DCIC_PCE | DCIC_DE; *
mips_set_dcic( dcic );
mips_get_bpcrm( reg, mask );
mips_get_dcic( dcic );
* printf("bpc is %08X, bpc_mask is %08X, dcic is now %08X\n", reg, mask, dcic ); *
}
*/