Differential D3341 Diff 10524 gnu/usr.bin/gdb/kgdb/trgt.c

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gnu/usr.bin/gdb/kgdb/trgt.c

Show First 20 Lines • Show All 72 Lines • ▼ Show 20 Lines
static struct target_ops kgdb_trgt_ops;		static struct target_ops kgdb_trgt_ops;

kvm_t *kvm;		kvm_t *kvm;
static char kvm_err[_POSIX2_LINE_MAX];		static char kvm_err[_POSIX2_LINE_MAX];

#define KERNOFF (kgdb_kernbase ())		#define KERNOFF (kgdb_kernbase ())
#define PINKERNEL(x) ((x) >= KERNOFF)		#define PINKERNEL(x) ((x) >= KERNOFF)

		static int
		kgdb_resolve_symbol(const char name, kvaddr_t kva)
		{
		struct minimal_symbol *ms;

		ms = lookup_minimal_symbol (name, NULL, NULL);
		if (ms == NULL)
		return (1);

		*kva = SYMBOL_VALUE_ADDRESS (ms);
		return (0);;
		}

static CORE_ADDR		static CORE_ADDR
kgdb_kernbase (void)		kgdb_kernbase (void)
{		{
static CORE_ADDR kernbase;		static CORE_ADDR kernbase;
struct minimal_symbol *sym;		struct minimal_symbol *sym;

if (kernbase == 0) {		if (kernbase == 0) {
sym = lookup_minimal_symbol ("kernbase", NULL, NULL);		sym = lookup_minimal_symbol ("kernbase", NULL, NULL);
Show All 26 Lines	kgdb_trgt_open(char *filename, int from_tty)
if (filename[0] != '/') {		if (filename[0] != '/') {
temp = concat (current_directory, "/", filename, NULL);		temp = concat (current_directory, "/", filename, NULL);
xfree(filename);		xfree(filename);
filename = temp;		filename = temp;
}		}

old_chain = make_cleanup (xfree, filename);		old_chain = make_cleanup (xfree, filename);

nkvm = kvm_openfiles(bfd_get_filename(exec_bfd), filename, NULL,		nkvm = kvm_open2(bfd_get_filename(exec_bfd), filename,
write_files ? O_RDWR : O_RDONLY, kvm_err);		write_files ? O_RDWR : O_RDONLY, kvm_err, kgdb_resolve_symbol);
if (nkvm == NULL)		if (nkvm == NULL)
error ("Failed to open vmcore: %s", kvm_err);		error ("Failed to open vmcore: %s", kvm_err);

/* Don't free the filename now and close any previous vmcore. */		/* Don't free the filename now and close any previous vmcore. */
discard_cleanups(old_chain);		discard_cleanups(old_chain);
unpush_target(&kgdb_trgt_ops);		unpush_target(&kgdb_trgt_ops);

kvm = nkvm;		kvm = nkvm;
▲ Show 20 Lines • Show All 116 Lines • ▼ Show 20 Lines	kgdb_trgt_xfer_memory(CORE_ADDR memaddr, char *myaddr, int len, int write,
struct mem_attrib attrib, struct target_ops target)		struct mem_attrib attrib, struct target_ops target)
{		{
struct target_ops *tb;		struct target_ops *tb;

if (kvm != NULL) {		if (kvm != NULL) {
if (len == 0)		if (len == 0)
return (0);		return (0);
if (!write)		if (!write)
return (kvm_read(kvm, memaddr, myaddr, len));		return (kvm_read2(kvm, memaddr, myaddr, len));
else		else
return (kvm_write(kvm, memaddr, myaddr, len));		return (kvm_write(kvm, memaddr, myaddr, len));
}		}
tb = find_target_beneath(target);		tb = find_target_beneath(target);
return (tb->to_xfer_memory(memaddr, myaddr, len, write, attrib, tb));		return (tb->to_xfer_memory(memaddr, myaddr, len, write, attrib, tb));
}		}

static int		static int
▲ Show 20 Lines • Show All 118 Lines • Show Last 20 Lines