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-rw-r--r--gnu/usr.bin/binutils/gdb/kvm-fbsd.c281
1 files changed, 8 insertions, 273 deletions
diff --git a/gnu/usr.bin/binutils/gdb/kvm-fbsd.c b/gnu/usr.bin/binutils/gdb/kvm-fbsd.c
index da6435e..93395a7 100644
--- a/gnu/usr.bin/binutils/gdb/kvm-fbsd.c
+++ b/gnu/usr.bin/binutils/gdb/kvm-fbsd.c
@@ -19,7 +19,8 @@ along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
-/* $FreeBSD$ */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
/*
* This works like "remote" but, you use it like this:
@@ -33,31 +34,27 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <sys/param.h>
-#include <sys/time.h>
-#include <sys/proc.h>
#include <sys/user.h>
-#include <errno.h>
-#include <signal.h>
+#include <ctype.h>
#include <fcntl.h>
#include <kvm.h>
#include <sys/sysctl.h>
#include <paths.h>
-#include <readline/tilde.h>
-#include <machine/frame.h>
#include "defs.h"
+#include <readline/tilde.h>
#include "gdb_string.h"
#include "frame.h" /* required by inferior.h */
#include "inferior.h"
-#include "symtab.h"
#include "symfile.h"
#include "objfiles.h"
#include "command.h"
#include "bfd.h"
-#include "target.h"
#include "gdbcore.h"
#include "solist.h"
+#include "kvm-fbsd-machine.h"
+
static void
kcore_files_info (struct target_ops *);
@@ -68,10 +65,6 @@ static void
get_kcore_registers (int);
static int
-xfer_mem (CORE_ADDR, char *, int, int, struct mem_attrib *,
- struct target_ops *);
-
-static int
xfer_umem (CORE_ADDR, char *, int, int);
#ifdef SOLIB_ADD
@@ -116,7 +109,7 @@ ksym_kernbase (void)
#define KERNOFF (ksym_kernbase ())
#define INKERNEL(x) ((x) >= KERNOFF)
-CORE_ADDR
+static CORE_ADDR
ksym_lookup(const char *name)
{
struct minimal_symbol *sym;
@@ -190,8 +183,6 @@ initial_pcb (void)
static int
set_context (CORE_ADDR addr)
{
- CORE_ADDR procaddr = 0;
-
if (kvread (addr, &cur_pcb))
error ("cannot read pcb at %#x", addr);
@@ -349,253 +340,6 @@ kcore_detach (char *args, int from_tty)
printf_filtered ("No kernel core file now.\n");
}
-#ifdef __alpha__
-
-#include "alpha/tm-alpha.h"
-#ifndef S0_REGNUM
-#define S0_REGNUM (T7_REGNUM+1)
-#endif
-
-fetch_kcore_registers (struct pcb *pcbp)
-{
-
- /* First clear out any garbage. */
- memset (registers, '\0', REGISTER_BYTES);
-
- /* SP */
- *(long *) &registers[REGISTER_BYTE (SP_REGNUM)] =
- pcbp->pcb_hw.apcb_ksp;
-
- /* S0 through S6 */
- memcpy (&registers[REGISTER_BYTE (S0_REGNUM)],
- &pcbp->pcb_context[0], 7 * sizeof (long));
-
- /* PC */
- *(long *) &registers[REGISTER_BYTE (PC_REGNUM)] =
- pcbp->pcb_context[7];
-
- registers_fetched ();
-}
-
-
-CORE_ADDR
-fbsd_kern_frame_saved_pc (struct frame_info *fi)
-{
- struct minimal_symbol *sym;
- CORE_ADDR this_saved_pc;
-
- this_saved_pc = alpha_frame_saved_pc (fi);
-
- sym = lookup_minimal_symbol_by_pc (this_saved_pc);
-
- if (sym != NULL &&
- (strcmp (SYMBOL_NAME (sym), "XentArith") == 0 ||
- strcmp (SYMBOL_NAME (sym), "XentIF") == 0 ||
- strcmp (SYMBOL_NAME (sym), "XentInt") == 0 ||
- strcmp (SYMBOL_NAME (sym), "XentMM") == 0 ||
- strcmp (SYMBOL_NAME (sym), "XentSys") == 0 ||
- strcmp (SYMBOL_NAME (sym), "XentUna") == 0 ||
- strcmp (SYMBOL_NAME (sym), "XentRestart") == 0))
- {
- return (read_memory_integer (fi->frame + 32 * 8, 8));
- }
- else
- {
- return (this_saved_pc);
- }
-}
-
-#endif /* __alpha__ */
-
-#ifdef __i386__
-
-static CORE_ADDR
-ksym_maxuseraddr (void)
-{
- static CORE_ADDR maxuseraddr;
- struct minimal_symbol *sym;
-
- if (maxuseraddr == 0)
- {
- sym = lookup_minimal_symbol ("PTmap", NULL, NULL);
- if (sym == NULL) {
- maxuseraddr = VM_MAXUSER_ADDRESS;
- } else {
- maxuseraddr = SYMBOL_VALUE_ADDRESS (sym);
- }
- }
- return maxuseraddr;
-}
-
-
-/* Symbol names of kernel entry points. Use special frames. */
-#define KSYM_TRAP "calltrap"
-#define KSYM_INTR "Xintr"
-#define KSYM_FASTINTR "Xfastintr"
-#define KSYM_OLDSYSCALL "Xlcall_syscall"
-#define KSYM_SYSCALL "Xint0x80_syscall"
-
-/* The following is FreeBSD-specific hackery to decode special frames
- and elide the assembly-language stub. This could be made faster by
- defining a frame_type field in the machine-dependent frame information,
- but we don't think that's too important right now. */
-enum frametype { tf_normal, tf_trap, tf_interrupt, tf_syscall };
-
-CORE_ADDR
-fbsd_kern_frame_saved_pc (struct frame_info *fi)
-{
- struct minimal_symbol *sym;
- CORE_ADDR this_saved_pc;
- enum frametype frametype;
-
- this_saved_pc = read_memory_integer (fi->frame + 4, 4);
- sym = lookup_minimal_symbol_by_pc (this_saved_pc);
- frametype = tf_normal;
- if (sym != NULL)
- {
- if (strcmp (SYMBOL_NAME (sym), KSYM_TRAP) == 0)
- frametype = tf_trap;
- else
- if (strncmp (SYMBOL_NAME (sym), KSYM_INTR,
- strlen (KSYM_INTR)) == 0 || strncmp (SYMBOL_NAME(sym),
- KSYM_FASTINTR, strlen (KSYM_FASTINTR)) == 0)
- frametype = tf_interrupt;
- else
- if (strcmp (SYMBOL_NAME (sym), KSYM_SYSCALL) == 0 ||
- strcmp (SYMBOL_NAME (sym), KSYM_OLDSYSCALL) == 0)
- frametype = tf_syscall;
- }
-
- switch (frametype)
- {
- case tf_normal:
- return (this_saved_pc);
-#define oEIP offsetof (struct trapframe, tf_eip)
-
- case tf_trap:
- return (read_memory_integer (fi->frame + 8 + oEIP, 4));
-
- case tf_interrupt:
- return (read_memory_integer (fi->frame + 12 + oEIP, 4));
-
- case tf_syscall:
- return (read_memory_integer (fi->frame + 8 + oEIP, 4));
-#undef oEIP
- }
-}
-
-static int
-fetch_kcore_registers (struct pcb *pcb)
-{
- int i;
- int noreg;
-
- /* Get the register values out of the sys pcb and store them where
- `read_register' will find them. */
- /*
- * XXX many registers aren't available.
- * XXX for the non-core case, the registers are stale - they are for
- * the last context switch to the debugger.
- * XXX gcc's register numbers aren't all #defined in tm-i386.h.
- */
- noreg = 0;
- for (i = 0; i < 3; ++i) /* eax,ecx,edx */
- supply_register (i, (char *)&noreg);
-
- supply_register (3, (char *) &pcb->pcb_ebx);
- supply_register (SP_REGNUM, (char *) &pcb->pcb_esp);
- supply_register (FP_REGNUM, (char *) &pcb->pcb_ebp);
- supply_register (6, (char *) &pcb->pcb_esi);
- supply_register (7, (char *) &pcb->pcb_edi);
- supply_register (PC_REGNUM, (char *) &pcb->pcb_eip);
-
- for (i = 9; i < 14; ++i) /* eflags, cs, ss, ds, es, fs */
- supply_register (i, (char *) &noreg);
- supply_register (15, (char *) &pcb->pcb_gs);
-
- /* XXX 80387 registers? */
-}
-
-#endif /* __i386__ */
-
-#ifdef __sparc64__
-
-#define SPARC_INTREG_SIZE 8
-
-static void
-fetch_kcore_registers (struct pcb *pcbp)
-{
- static struct frame top;
- CORE_ADDR f_addr;
- int i;
-
- /* Get the register values out of the sys pcb and store them where
- `read_register' will find them. */
- /*
- * XXX many registers aren't available.
- * XXX for the non-core case, the registers are stale - they are for
- * the last context switch to the debugger.
- * XXX do something with the floating-point registers?
- */
- supply_register (SP_REGNUM, (char *)&pcbp->pcb_ufp);
- supply_register (PC_REGNUM, (char *)&pcbp->pcb_pc);
- f_addr = extract_address (&pcbp->pcb_ufp, SPARC_INTREG_SIZE);
- /* Load the previous frame by hand (XXX) and supply it. */
- read_memory (f_addr + SPOFF, (char *)&top, sizeof (top));
- for (i = 0; i < 8; i++)
- supply_register (i + L0_REGNUM, (char *)&top.fr_local[i]);
- for (i = 0; i < 8; i++)
- supply_register (i + I0_REGNUM, (char *)&top.fr_in[i]);
-}
-
-CORE_ADDR
-fbsd_kern_frame_saved_pc (struct frame_info *fi)
-{
- struct minimal_symbol *sym;
- CORE_ADDR frame, pc_addr, pc;
- char *buf;
-
- buf = alloca (MAX_REGISTER_RAW_SIZE);
- /* XXX: duplicates fi->extra_info->bottom. */
- frame = (fi->next != NULL) ? fi->next->frame : read_sp ();
- pc_addr = frame + offsetof (struct frame, fr_in[7]);
-
-#define READ_PC(pc, a, b) do { \
- read_memory (a, b, SPARC_INTREG_SIZE); \
- pc = extract_address (b, SPARC_INTREG_SIZE); \
-} while (0)
-
- READ_PC (pc, pc_addr, buf);
-
- sym = lookup_minimal_symbol_by_pc (pc);
- if (sym != NULL)
- {
- if (strncmp (SYMBOL_NAME (sym), "tl0_", 4) == 0 ||
- strcmp (SYMBOL_NAME (sym), "btext") == 0 ||
- strcmp (SYMBOL_NAME (sym), "mp_startup") == 0 ||
- strcmp (SYMBOL_NAME (sym), "fork_trampoline") == 0)
- {
- /*
- * Ugly kluge: user space addresses aren't separated from kernel
- * ones by range; if encountering a trap from user space, just
- * return a 0 to stop the trace.
- * Do the same for entry points of kernel processes to avoid
- * printing garbage.
- */
- pc = 0;
- }
- if (strncmp (SYMBOL_NAME (sym), "tl1_", 4) == 0)
- {
- pc_addr = fi->frame + sizeof (struct frame) +
- offsetof (struct trapframe, tf_tpc);
- READ_PC (pc, pc_addr, buf);
- }
- }
- return (pc);
-}
-
-#endif /* __sparc64__ */
-
/* Get the registers out of a core file. This is the machine-
independent part. Fetch_core_registers is the machine-dependent
part, typically implemented in the xm-file for each architecture. */
@@ -623,15 +367,6 @@ kcore_files_info (t)
printf_filtered ("\t`%s'\n", core_file);
}
-/* If mourn is being called in all the right places, this could be say
- `gdb internal error' (since generic_mourn calls breakpoint_init_inferior). */
-
-static int
-ignore (CORE_ADDR addr, char *contents)
-{
- return 0;
-}
-
static int
xfer_kmem (CORE_ADDR memaddr, char *myaddr, int len, int write,
struct mem_attrib *attrib, struct target_ops *target)
@@ -651,7 +386,7 @@ xfer_kmem (CORE_ADDR memaddr, char *myaddr, int len, int write,
n = kvm_read (core_kd, memaddr, myaddr, len) ;
if (n < 0) {
fprintf_unfiltered (gdb_stderr, "can not access 0x%x, %s\n",
- memaddr, kvm_geterr (core_kd));
+ (unsigned)memaddr, kvm_geterr (core_kd));
n = 0;
}
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