#include "command.h"
#include "floatformat.h"
+#include <stdio.h> /* required for __DJGPP_MINOR__ */
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <debug/v2load.h>
#include <debug/dbgcom.h>
+#if __DJGPP_MINOR__ < 3
+/* This code will be provided from DJGPP 2.03 on. Until then I code it
+ here */
+typedef struct {
+ unsigned short sig0;
+ unsigned short sig1;
+ unsigned short sig2;
+ unsigned short sig3;
+ unsigned short exponent:15;
+ unsigned short sign:1;
+} NPXREG;
+
+typedef struct {
+ unsigned int control;
+ unsigned int status;
+ unsigned int tag;
+ unsigned int eip;
+ unsigned int cs;
+ unsigned int dataptr;
+ unsigned int datasel;
+ NPXREG reg[8];
+} NPX;
+
+static NPX npx;
+
+static void save_npx (void); /* Save the FPU of the debugged program */
+static void load_npx (void); /* Restore the FPU of the debugged program */
+
+/* ------------------------------------------------------------------------- */
+/* Store the contents of the NPX in the global variable `npx'. */
+
+static void
+save_npx (void)
+{
+ asm ("inb $0xa0, %%al
+ testb $0x20, %%al
+ jz 1f
+ xorb %%al, %%al
+ outb %%al, $0xf0
+ movb $0x20, %%al
+ outb %%al, $0xa0
+ outb %%al, $0x20
+1:
+ fnsave %0
+ fwait"
+ : "=m" (npx)
+ : /* No input */
+ : "%eax");
+}
+/* ------------------------------------------------------------------------- */
+/* Reload the contents of the NPX from the global variable `npx'. */
+
+static void
+load_npx (void)
+{
+ asm ("frstor %0" : "=m" (npx));
+}
+#endif /* __DJGPP_MINOR < 3 */
+
extern void _initialize_go32_nat (void);
struct env387
#define SOME_PID 42
-/* FIXME add decls of all static functions here */
-
static int prog_has_started = 0;
+static void
+print_387_status (unsigned short status, struct env387 *ep);
+static void
+go32_open (char *name, int from_tty);
+static void
+go32_close (int quitting);
+static void
+go32_attach (char *args, int from_tty);
+static void
+go32_detach (char *args, int from_tty);
+static void
+go32_resume (int pid, int step, enum target_signal siggnal);
+static int
+go32_wait (int pid, struct target_waitstatus *status);
+static void
+go32_fetch_registers (int regno);
+static void
+store_register (int regno);
+static void
+go32_store_registers (int regno);
+static void
+go32_prepare_to_store (void);
+static int
+go32_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
+ struct target_ops *target);
+static void
+go32_files_info (struct target_ops *target);
+static void
+go32_stop (void);
+static void
+go32_kill_inferior (void);
+static void
+go32_create_inferior (char *exec_file, char *args, char **env);
+static void
+go32_mourn_inferior (void);
+static int
+go32_can_run (void);
+static void
+ignore (void);
+static void
+ignore2 (char *a, int b);
+static int go32_insert_aligned_watchpoint (int pid, CORE_ADDR waddr,
+ CORE_ADDR addr, int len, int rw);
+static int go32_insert_nonaligned_watchpoint (int pid, CORE_ADDR waddr,
+ CORE_ADDR addr, int len, int rw);
+
+static struct target_ops go32_ops;
+static void
+go32_terminal_init (void);
+static void
+go32_terminal_inferior (void);
+static void
+go32_terminal_ours (void);
static void
print_387_status (unsigned short status, struct env387 *ep)
else
a_tss.tss_eflags &= 0xfeff;
+#if __DJGPP_MINOR__ < 3
+ save_npx ();
+#endif
run_child ();
+#if __DJGPP_MINOR__ < 3
+ load_npx ();
+#endif
if (a_tss.tss_irqn == 0x21)
{
static void
go32_kill_inferior (void)
{
- go32_stop ();
unpush_target (&go32_ops);
}
if (prog_has_started)
{
+ go32_stop ();
go32_kill_inferior ();
}
clear_proceed_status ();
insert_breakpoints ();
proceed ((CORE_ADDR) - 1, TARGET_SIGNAL_0, 0);
+ prog_has_started = 1;
}
static void
#define SHOW_DR(text) do {} while (0)
#endif
-static int go32_insert_aligned_watchpoint (int pid, CORE_ADDR waddr,
- CORE_ADDR addr, int len, int rw);
-
-static int go32_insert_nonaligned_watchpoint (int pid, CORE_ADDR waddr,
- CORE_ADDR addr, int len, int rw);
-
/* Insert a watchpoint. */
int
return 0;
}
-static struct target_ops go32_ops;
+static int inf_flags_valid = 0;
+static int inf_in_flag;
+static int inf_out_flag;
+
+static void
+go32_terminal_init (void)
+{
+ /* Save the filemodes for stdin/stout */
+ inf_in_flag = setmode(0, 0);
+ setmode(0, inf_in_flag);
+ inf_out_flag = setmode(1, 0);
+ setmode(1, inf_out_flag);
+ inf_flags_valid = 1;
+}
+
+static void
+go32_terminal_inferior (void)
+{
+ /* set the filemodes for stdin/stdout of the inferior */
+ if (inf_flags_valid)
+ {
+ setmode(0, inf_in_flag);
+ setmode(1, inf_out_flag);
+ }
+}
+
+static void
+go32_terminal_ours (void)
+{
+ /* Switch to text mode on stdin/stdout always on the gdb terminal and
+ save the inferior modes to be restored later */
+ inf_in_flag = setmode(0, O_TEXT);
+ inf_out_flag = setmode(1, O_TEXT);
+}
static void
init_go32_ops (void)
go32_ops.to_files_info = go32_files_info;
go32_ops.to_insert_breakpoint = memory_insert_breakpoint;
go32_ops.to_remove_breakpoint = memory_remove_breakpoint;
- go32_ops.to_terminal_init = ignore;
- go32_ops.to_terminal_inferior = ignore;
+ go32_ops.to_terminal_init = go32_terminal_init;
+ go32_ops.to_terminal_inferior = go32_terminal_inferior;
go32_ops.to_terminal_ours_for_output = ignore;
- go32_ops.to_terminal_ours = ignore;
+ go32_ops.to_terminal_ours = go32_terminal_ours;
go32_ops.to_terminal_info = ignore2;
go32_ops.to_kill = go32_kill_inferior;
go32_ops.to_create_inferior = go32_create_inferior;
projects / deliverable / binutils-gdb.git / blobdiff