* ld-sh/shared-1.d: Fix incorrect offsets.

[deliverable/binutils-gdb.git] / gdb / go32-nat.c

diff --git a/gdb/go32-nat.c b/gdb/go32-nat.c
index fce7a0f4815a4937266ac37d01ab57b81da639e6..307956bd6a057377fef700cd41c2ffb4bc8e8faa 100644 (file)
--- a/gdb/go32-nat.c
+++ b/gdb/go32-nat.c
@@ -41,10 +41,7 @@
 #include <unistd.h>
 #include <sys/utsname.h>
 #include <io.h>
-/* breakpoint.h defines `disable' which is an enum member.  */
-#define disable interrup_disable
 #include <dos.h>
-#undef disable
 #include <dpmi.h>
 #include <go32.h>
 #include <sys/farptr.h>
@@ -93,16 +90,16 @@ static void load_npx (void);        /* Restore the FPU of the debugged program */
 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
+  asm ("inb    $0xa0, %%al  \n\
+       testb $0x20, %%al    \n\
+       jz 1f               \n\
+       xorb %%al, %%al     \n\
+       outb %%al, $0xf0     \n\
+       movb $0x20, %%al            \n\
+       outb %%al, $0xa0     \n\
+       outb %%al, $0x20     \n\
+1:                                 \n\
+       fnsave %0           \n\
        fwait "
 :     "=m" (npx)
 :                              /* No input */
@@ -112,9 +109,6 @@ save_npx (void)
 /* *INDENT-ON* */
 
 
-
-
-
 /* ------------------------------------------------------------------------- */
 /* Reload the contents of the NPX from the global variable `npx'.  */
 
@@ -472,7 +466,7 @@ fetch_register (int regno)
 {
   if (regno < FP0_REGNUM)
     supply_register (regno, (char *) &a_tss + regno_mapping[regno].tss_ofs);
-  else if (regno <= LAST_FPU_CTRL_REGNUM)
+  else if (FP_REGNUM_P (regno) || FPC_REGNUM_P (regno))
     i387_supply_register (regno, (char *) &npx);
   else
     internal_error (__FILE__, __LINE__,
@@ -495,14 +489,10 @@ go32_fetch_registers (int regno)
 static void
 store_register (int regno)
 {
-  void *rp;
-  void *v = (void *) register_buffer (regno);
-
   if (regno < FP0_REGNUM)
-    memcpy ((char *) &a_tss + regno_mapping[regno].tss_ofs,
-           v, regno_mapping[regno].size);
-  else if (regno <= LAST_FPU_CTRL_REGNUM)
-    i387_fill_fsave ((char *)&npx, regno);
+    regcache_collect (regno, (void *) &a_tss + regno_mapping[regno].tss_ofs);
+  else if (FP_REGNUM_P (regno) || FPC_REGNUM_P (regno))
+    i387_fill_fsave ((char *) &npx, regno);
   else
     internal_error (__FILE__, __LINE__,
                    "Invalid register no. %d in store_register.", regno);
@@ -652,7 +642,7 @@ go32_create_inferior (char *exec_file, char *args, char **env)
       exit (1);
     }
   environ = env_save;
-  free (cmdline);
+  xfree (cmdline);
 
   edi_init (start_state);
 #if __DJGPP_MINOR__ < 3
@@ -1331,7 +1321,10 @@ read_memory_region (unsigned long addr, void *dest, size_t len)
 
          if (__dpmi_set_segment_base_address (sel, addr) != -1
              && __dpmi_set_descriptor_access_rights (sel, access_rights) != -1
-             && __dpmi_set_segment_limit (sel, segment_limit) != -1)
+             && __dpmi_set_segment_limit (sel, segment_limit) != -1
+             /* W2K silently fails to set the segment limit, leaving
+                it at zero; this test avoids the resulting crash.  */
+             && __dpmi_get_segment_limit (sel) >= segment_limit)
            movedata (sel, 0, _my_ds (), (unsigned)dest, len);
          else
            retval = 0;
@@ -1700,6 +1693,7 @@ get_cr3 (void)
   cr3 = _farnspeekl (taskbase + 0x1c) & ~0xfff;
   if (cr3 > 0xfffff)
     {
+#if 0  /* not fullly supported yet */
       /* The Page Directory is in UMBs.  In that case, CWSDPMI puts
         the first Page Table right below the Page Directory.  Thus,
         the first Page Table's entry for its own address and the Page
@@ -1720,6 +1714,7 @@ get_cr3 (void)
              break;
            }
        }
+#endif
 
       if (cr3 > 0xfffff)
        cr3 = 0;