import gdb-1999-12-06 snapshot

21 files changed, 169 insertions, 221 deletions

diff --git a/gdb/config/alpha/alpha-linux.mh b/gdb/config/alpha/alpha-linux.mh
index aa4a069..05e0cb6 100644
--- a/gdb/config/alpha/alpha-linux.mh
+++ b/gdb/config/alpha/alpha-linux.mh
@@ -3,7 +3,7 @@ XDEPFILES= ser-tcp.o
 XM_FILE= xm-alphalinux.h
 NAT_FILE= nm-linux.h
 NATDEPFILES= infptrace.o inftarg.o corelow.o core-regset.o alpha-nat.o \
-	fork-child.o solib.o
+	fork-child.o solib.o linux-thread.o
 
 MMALLOC = 
 MMALLOC_CFLAGS = -DNO_MMALLOC 
diff --git a/gdb/config/alpha/nm-linux.h b/gdb/config/alpha/nm-linux.h
index 99df5c6..49b4fc3 100644
--- a/gdb/config/alpha/nm-linux.h
+++ b/gdb/config/alpha/nm-linux.h
@@ -18,6 +18,8 @@
    Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+#include "nm-linux.h"
+
 /* Figure out where the longjmp will land.  We expect that we have just entered
    longjmp and haven't yet setup the stack frame, so the args are still in the
    argument regs.  A0_REGNUM points at the jmp_buf structure from which we
@@ -28,13 +30,12 @@
 extern int
 get_longjmp_target PARAMS ((CORE_ADDR *));
 
-/* Tell gdb that we can attach and detach other processes */
-#define ATTACH_DETACH
-
 /* ptrace register ``addresses'' are absolute.  */
 
 #define U_REGS_OFFSET 0
 
+/* FIXME: This is probably true, or should be, on all Linux ports.
+   IA64?  Sparc64?  */
 #define PTRACE_ARG3_TYPE long
 
 /* ptrace transfers longs, the ptrace man page is lying.  */
@@ -51,10 +52,7 @@ get_longjmp_target PARAMS ((CORE_ADDR *));
 
 /* Support for shared libraries.  */
 
-#include "solib.h"
-
 #ifdef __ELF__
-#define SVR4_SHARED_LIBS
 #define TARGET_ELF64
 #endif
 
@@ -65,3 +63,4 @@ get_longjmp_target PARAMS ((CORE_ADDR *));
 /* Given a pointer to either a gregset_t or fpregset_t, return a
    pointer to the first register.  */
 #define ALPHA_REGSET_BASE(regsetp)  ((long *) (regsetp))
+
diff --git a/gdb/config/alpha/tm-alphalinux.h b/gdb/config/alpha/tm-alphalinux.h
index 313667e..a2a993e 100644
--- a/gdb/config/alpha/tm-alphalinux.h
+++ b/gdb/config/alpha/tm-alphalinux.h
@@ -75,7 +75,6 @@ extern long alpha_linux_sigtramp_offset PARAMS ((CORE_ADDR));
 #undef FRAME_PAST_SIGTRAMP_FRAME
 #define FRAME_PAST_SIGTRAMP_FRAME(frame, pc)	(0)
 
-/* We need this for the SOLIB_TRAMPOLINE stuff.  */
-#include "tm-sysv4.h"
+#include "tm-linux.h"
 
 #endif /* TM_LINUXALPHA_H */
diff --git a/gdb/config/i386/nm-linux.h b/gdb/config/i386/nm-linux.h
index 1ce0a30..93dfe46 100644
--- a/gdb/config/i386/nm-linux.h
+++ b/gdb/config/i386/nm-linux.h
@@ -23,15 +23,13 @@
 #define NM_LINUX_H
 
 #include "i386/nm-i386v.h"
+#include "nm-linux.h"
 
 /* Return sizeof user struct to callers in less machine dependent routines */
 
 #define KERNEL_U_SIZE kernel_u_size()
 extern int kernel_u_size PARAMS ((void));
 
-/* Tell gdb that we can attach and detach other processes */
-#define ATTACH_DETACH
-
 #define U_REGS_OFFSET 0
 
 /* GNU/Linux supports the 386 hardware debugging registers.  */
@@ -74,14 +72,4 @@ i386_insert_watchpoint PARAMS ((int pid, CORE_ADDR addr, int len, int rw));
 extern int
 i386_remove_watchpoint PARAMS ((int pid, CORE_ADDR addr, int len));
 
-/* Support for the glibc linuxthreads package. */
-
-extern char *
-linuxthreads_pid_to_str PARAMS ((int pid));
-#define target_pid_to_str(PID) linuxthreads_pid_to_str (PID)
-
-extern int
-linuxthreads_prepare_to_proceed PARAMS ((int step));
-#define PREPARE_TO_PROCEED(select_it) linuxthreads_prepare_to_proceed (1)
-
 #endif /* #ifndef NM_LINUX_H */
diff --git a/gdb/config/i386/tm-cygwin.h b/gdb/config/i386/tm-cygwin.h
index 309e1ff..2faa4bf 100644
--- a/gdb/config/i386/tm-cygwin.h
+++ b/gdb/config/i386/tm-cygwin.h
@@ -1,5 +1,5 @@
 /* Macro definitions for i386 running under the win32 API Unix.
-   Copyright 1995, 1996 Free Software Foundation, Inc.
+   Copyright 1995 - 1999 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -19,104 +19,10 @@
    Boston, MA 02111-1307, USA.  */
 
 
-#include "i386/tm-i386v.h"
-
-#undef MAX_REGISTER_RAW_SIZE
-#undef MAX_REGISTER_VIRTUAL_SIZE
-#undef NUM_REGS
-#undef REGISTER_BYTE
-#undef REGISTER_BYTES
-#undef REGISTER_CONVERTIBLE
-#undef REGISTER_CONVERT_TO_RAW
-#undef REGISTER_CONVERT_TO_VIRTUAL
-#undef REGISTER_NAMES
-#undef REGISTER_RAW_SIZE
-#undef REGISTER_VIRTUAL_SIZE
-#undef REGISTER_VIRTUAL_TYPE
-
-/* Number of machine registers */
-
-#define NUM_REGS 24
-
-/* Initializer for an array of names of registers.
-   There should be NUM_REGS strings in this initializer.  */
-
-/* the order of the first 8 registers must match the compiler's 
- * numbering scheme (which is the same as the 386 scheme)
- * also, this table must match regmap in i386-pinsn.c.
- */
-
-#define REGISTER_NAMES { "eax",  "ecx",  "edx",  "ebx",  \
-			 "esp",  "ebp",  "esi",  "edi",  \
-			 "eip",  "ps",   "cs",   "ss",   \
-			 "ds",   "es",   "fs",   "gs",   \
-			 "st",   "st(1)","st(2)","st(3)",\
-                         "st(4)","st(5)","st(6)","st(7)",}
-
-#define FP0_REGNUM 16
-
-/* Total amount of space needed to store our copies of the machine's
-   register state, the array `registers'.  */
-
-#define REGISTER_BYTES (16 * 4 + 8 * 10)
-
-/* Index within `registers' of the first byte of the space for
-   register N.  */
-
-#define REGISTER_BYTE(N) (((N) < 16) ? (N) * 4 : (((N) - 16) * 10) + (16 * 4))
-
-/* Number of bytes of storage in the actual machine representation
-   for register N.  */
-
-#define REGISTER_RAW_SIZE(N) (((N) < 16) ? 4 : 10)
-
-/* Number of bytes of storage in the program's representation
-   for register N. */
+#undef HAVE_SSE_REGS	/* FIXME! win32-nat.c needs to support XMMi registers */
+#define HAVE_I387_REGS
 
-#define REGISTER_VIRTUAL_SIZE(N) (((N) < 16) ? 4 : 10)
-
-/* Largest value REGISTER_RAW_SIZE can have.  */
-
-#define MAX_REGISTER_RAW_SIZE 10
-
-/* Largest value REGISTER_VIRTUAL_SIZE can have.  */
-
-#define MAX_REGISTER_VIRTUAL_SIZE 10
-
-/* Nonzero if register N requires conversion
-   from raw format to virtual format.  */
-
-#define REGISTER_CONVERTIBLE(N) \
-  ((N < FP0_REGNUM) ? 0 : 1)
-
-/* Convert data from raw format for register REGNUM in buffer FROM
-   to virtual format with type TYPE in buffer TO.  */
-extern void
-i387_to_double PARAMS ((char *, char *));
-
-
-#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,TYPE,FROM,TO) \
-{ \
-  double val; \
-  i387_to_double ((FROM), (char *)&val); \
-  store_floating ((TO), TYPE_LENGTH (TYPE), val); \
-}
-
-extern void
-double_to_i387 PARAMS ((char *, char *));
-
-#define REGISTER_CONVERT_TO_RAW(TYPE,REGNUM,FROM,TO) \
-{ \
-  double val = extract_floating ((FROM), TYPE_LENGTH (TYPE)); \
-  double_to_i387((char *)&val, (TO)); \
-}
-
-/* Return the GDB type object for the "standard" data type
-   of data in register N.  */
-
-#define REGISTER_VIRTUAL_TYPE(N) \
-  ((N < FP0_REGNUM) ? builtin_type_int : \
-   builtin_type_double)
+#include "i386/tm-i386v.h"
 
 #define IN_SOLIB_CALL_TRAMPOLINE(pc, name) skip_trampoline_code (pc, name)
 #define SKIP_TRAMPOLINE_CODE(pc)           skip_trampoline_code (pc, 0)
diff --git a/gdb/config/i386/tm-i386v.h b/gdb/config/i386/tm-i386v.h
index 308da1f..5e7826d 100644
--- a/gdb/config/i386/tm-i386v.h
+++ b/gdb/config/i386/tm-i386v.h
@@ -32,73 +32,6 @@
 #undef  START_INFERIOR_TRAPS_EXPECTED
 #define START_INFERIOR_TRAPS_EXPECTED 4
 
-/* Number of machine registers */
-
-#undef  NUM_REGS
-#define NUM_REGS 16
-
-/* Initializer for an array of names of registers.
-   There should be NUM_REGS strings in this initializer.  */
-
-/* the order of the first 8 registers must match the compiler's 
- * numbering scheme (which is the same as the 386 scheme)
- * also, this table must match regmap in i386-pinsn.c.
- */
-
-#undef  REGISTER_NAMES
-#define REGISTER_NAMES { "eax", "ecx", "edx", "ebx", \
-			 "esp", "ebp", "esi", "edi", \
-			 "eip", "ps", "cs", "ss", \
-			 "ds", "es", "fs", "gs", \
-			 }
-
-/* Total amount of space needed to store our copies of the machine's
-   register state, the array `registers'.  */
-
-#undef  REGISTER_BYTES
-#define REGISTER_BYTES (NUM_REGS * 4)
-
-/* Index within `registers' of the first byte of the space for
-   register N.  */
-
-#undef  REGISTER_BYTE
-#define REGISTER_BYTE(N) ((N)*4)
-
-/* Number of bytes of storage in the actual machine representation
-   for register N.  */
-
-#undef  REGISTER_RAW_SIZE
-#define REGISTER_RAW_SIZE(N) (4)
-
-/* Number of bytes of storage in the program's representation
-   for register N. */
-
-#undef  REGISTER_VIRTUAL_SIZE
-#define REGISTER_VIRTUAL_SIZE(N) (4)
-
-/* Largest value REGISTER_RAW_SIZE can have.  */
-
-#undef  MAX_REGISTER_RAW_SIZE
-#define MAX_REGISTER_RAW_SIZE 4
-
-/* Largest value REGISTER_VIRTUAL_SIZE can have.  */
-
-#undef  MAX_REGISTER_VIRTUAL_SIZE
-#define MAX_REGISTER_VIRTUAL_SIZE 4
-
-/* Return the GDB type object for the "standard" data type
-   of data in register N.  */
-/* Perhaps si and di should go here, but potentially they could be
-   used for things other than address.  */
-
-#undef  REGISTER_VIRTUAL_TYPE
-#define REGISTER_VIRTUAL_TYPE(N) \
-  ((N) == PC_REGNUM || (N) == FP_REGNUM || (N) == SP_REGNUM ?         \
-   lookup_pointer_type (builtin_type_void) : builtin_type_int)
-
-/* Store the address of the place in which to copy the structure the
-   subroutine will return.  This is called from call_function. */
-
 #undef  STORE_STRUCT_RETURN
 #define STORE_STRUCT_RETURN(ADDR, SP) \
   { char buf[REGISTER_SIZE];	\
diff --git a/gdb/config/i386/tm-linux.h b/gdb/config/i386/tm-linux.h
index 42daaea..a043489 100644
--- a/gdb/config/i386/tm-linux.h
+++ b/gdb/config/i386/tm-linux.h
@@ -28,6 +28,7 @@
 #endif
 
 #include "i386/tm-i386.h"
+#include "tm-linux.h"
 
 /* Size of sigcontext, from <asm/sigcontext.h>.  */
 #define LINUX_SIGCONTEXT_SIZE (88)
@@ -38,10 +39,6 @@
 /* Offset to saved SP in sigcontext, from <asm/sigcontext.h>.  */
 #define LINUX_SIGCONTEXT_SP_OFFSET (28)
 
-/* We need this file for the SOLIB_TRAMPOLINE stuff. */
-
-#include "tm-sysv4.h"
-
 #define LOW_RETURN_REGNUM 0	/* holds low four bytes of result */
 #define HIGH_RETURN_REGNUM 2	/* holds high four bytes of result */
 
@@ -167,18 +164,6 @@ extern CORE_ADDR i386_linux_sigtramp_saved_pc PARAMS ((struct frame_info *));
 
 extern CORE_ADDR i386_linux_sigtramp_saved_sp PARAMS ((struct frame_info *));
 
-/* Some versions of Linux have real-time signal support in the C library, and
-   some don't.  We have to include this file to find out.  */
-#include <signal.h>
-
-#ifdef __SIGRTMIN
-#define REALTIME_LO __SIGRTMIN
-#define REALTIME_HI (__SIGRTMAX + 1)
-#else
-#define REALTIME_LO 32
-#define REALTIME_HI 64
-#endif
-
 /* When we call a function in a shared library, and the PLT sends us
    into the dynamic linker to find the function's real address, we
    need to skip over the dynamic linker call.  This function decides
diff --git a/gdb/config/m68k/linux.mh b/gdb/config/m68k/linux.mh
index c3850b1..510248d 100644
--- a/gdb/config/m68k/linux.mh
+++ b/gdb/config/m68k/linux.mh
@@ -4,6 +4,7 @@ XM_FILE= xm-linux.h
 XDEPFILES= ser-tcp.o
 
 NAT_FILE= nm-linux.h
-NATDEPFILES= infptrace.o solib.o inftarg.o fork-child.o corelow.o core-aout.o core-regset.o m68klinux-nat.o
+NATDEPFILES= infptrace.o solib.o inftarg.o fork-child.o \
+	corelow.o core-aout.o core-regset.o m68klinux-nat.o linux-thread.o
 
 GDBSERVER_DEPFILES= low-linux.o
diff --git a/gdb/config/m68k/nm-linux.h b/gdb/config/m68k/nm-linux.h
index 197076e..e5846c6 100644
--- a/gdb/config/m68k/nm-linux.h
+++ b/gdb/config/m68k/nm-linux.h
@@ -21,24 +21,15 @@
 #ifndef NM_LINUX_H
 #define NM_LINUX_H
 
+#include "nm-linux.h"
+
 /* Return sizeof user struct to callers in less machine dependent routines */
 
 #define KERNEL_U_SIZE kernel_u_size()
 extern int kernel_u_size PARAMS ((void));
 
-/* Tell gdb that we can attach and detach other processes */
-#define ATTACH_DETACH
-
 #define U_REGS_OFFSET 0
 
-/* We define this if link.h is available, because with ELF we use SVR4 style
-   shared libraries. */
-
-#ifdef HAVE_LINK_H
-#define SVR4_SHARED_LIBS
-#include "solib.h"		/* Support for shared libraries. */
-#endif
-
 #define REGISTER_U_ADDR(addr, blockend, regno) \
 	(addr) = m68k_linux_register_u_addr ((blockend),(regno));
 
diff --git a/gdb/config/m68k/tm-linux.h b/gdb/config/m68k/tm-linux.h
index 9f59734..ccf4a7a 100644
--- a/gdb/config/m68k/tm-linux.h
+++ b/gdb/config/m68k/tm-linux.h
@@ -72,7 +72,7 @@
     }									\
 }
 
-#include "tm-sysv4.h"
+#include "tm-linux.h"
 #include "m68k/tm-m68k.h"
 
 /* Extract from an array REGBUF containing the (raw) register state
diff --git a/gdb/config/mips/tm-vr4xxx.h b/gdb/config/mips/tm-vr4xxx.h
new file mode 100644
index 0000000..1f2a131
--- /dev/null
+++ b/gdb/config/mips/tm-vr4xxx.h
@@ -0,0 +1,25 @@
+/* Copyright (C) 1998 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#define GDB_MULTI_ARCH 1
+#define MIPS_DEFAULT_FPU_TYPE MIPS_FPU_DOUBLE
+#define TARGET_BYTE_ORDER_SELECTABLE_P 1
+#define TARGET_MONITOR_PROMPT "<RISQ> "
+
+#include "mips/tm-bigmips64.h"
diff --git a/gdb/config/mips/tm-vr4xxxel.h b/gdb/config/mips/tm-vr4xxxel.h
new file mode 100644
index 0000000..ae5227b
--- /dev/null
+++ b/gdb/config/mips/tm-vr4xxxel.h
@@ -0,0 +1,25 @@
+/* Copyright (C) 1998 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#define GDB_MULTI_ARCH 1
+#define MIPS_DEFAULT_FPU_TYPE MIPS_FPU_DOUBLE
+#define TARGET_BYTE_ORDER_SELECTABLE_P 1
+#define TARGET_MONITOR_PROMPT "<RISQ> "
+
+#include "mips/tm-mips64.h"
diff --git a/gdb/config/mips/tm-vr5000.h b/gdb/config/mips/tm-vr5000.h
index 3966310..e3f66f0 100644
--- a/gdb/config/mips/tm-vr5000.h
+++ b/gdb/config/mips/tm-vr5000.h
@@ -17,6 +17,7 @@
    Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+#define GDB_MULTI_ARCH 1
 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
 #define TARGET_MONITOR_PROMPT "<RISQ> "
 #define MIPS_EABI 1
diff --git a/gdb/config/mips/tm-vr5000el.h b/gdb/config/mips/tm-vr5000el.h
index eae5804..9fa4700 100644
--- a/gdb/config/mips/tm-vr5000el.h
+++ b/gdb/config/mips/tm-vr5000el.h
@@ -17,6 +17,7 @@
    Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
+#define GDB_MULTI_ARCH 1
 #define TARGET_BYTE_ORDER_SELECTABLE_P 1
 #define TARGET_MONITOR_PROMPT "<RISQ> "
 #define MIPS_EABI 1
diff --git a/gdb/config/mips/vr4xxx.mt b/gdb/config/mips/vr4xxx.mt
new file mode 100644
index 0000000..4c79ec7
--- /dev/null
+++ b/gdb/config/mips/vr4xxx.mt
@@ -0,0 +1,5 @@
+# Target: Big-endian SIM monitor board.
+TDEPFILES= mips-tdep.o remote-mips.o
+TM_FILE= tm-vr4xxx.h
+SIM_OBS = remote-sim.o
+SIM = ../sim/mips/libsim.a
diff --git a/gdb/config/mips/vr4xxxel.mt b/gdb/config/mips/vr4xxxel.mt
new file mode 100644
index 0000000..5124dd7
--- /dev/null
+++ b/gdb/config/mips/vr4xxxel.mt
@@ -0,0 +1,5 @@
+# Target: Big-endian SIM monitor board.
+TDEPFILES= mips-tdep.o remote-mips.o
+TM_FILE= tm-vr4xxxel.h
+SIM_OBS = remote-sim.o
+SIM = ../sim/mips/libsim.a
diff --git a/gdb/config/nm-linux.h b/gdb/config/nm-linux.h
new file mode 100644
index 0000000..9805306
--- /dev/null
+++ b/gdb/config/nm-linux.h
@@ -0,0 +1,50 @@
+/* Native support for GNU/Linux, for GDB, the GNU debugger.
+   Copyright (C) 1999
+   Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* Linux is svr4ish but not that much */
+#undef USE_PROC_FS
+
+/* Tell gdb that we can attach and detach other processes */
+#define ATTACH_DETACH
+
+/* We define this if link.h is available, because with ELF we use SVR4 style
+   shared libraries. */
+
+#ifdef HAVE_LINK_H
+#define SVR4_SHARED_LIBS
+#include "solib.h"             /* Support for shared libraries. */
+#endif
+
+/* Support for the glibc linuxthreads package. */
+
+struct objfile;
+
+extern void
+linuxthreads_new_objfile PARAMS ((struct objfile *objfile));
+#define target_new_objfile(OBJFILE) linuxthreads_new_objfile (OBJFILE)
+
+extern char *
+linuxthreads_pid_to_str PARAMS ((int pid));
+#define target_pid_to_str(PID) linuxthreads_pid_to_str (PID)
+
+extern int
+linuxthreads_prepare_to_proceed PARAMS ((int step));
+#define PREPARE_TO_PROCEED(select_it) linuxthreads_prepare_to_proceed (1)
diff --git a/gdb/config/sparc/linux.mh b/gdb/config/sparc/linux.mh
index 954398f..4ad98c2 100644
--- a/gdb/config/sparc/linux.mh
+++ b/gdb/config/sparc/linux.mh
@@ -2,6 +2,7 @@
 XDEPFILES= ser-tcp.o
 XM_FILE= xm-linux.h
 NAT_FILE= nm-linux.h
-NATDEPFILES= fork-child.o infptrace.o inftarg.o corelow.o sparc-nat.o
+NATDEPFILES= fork-child.o infptrace.o inftarg.o corelow.o sparc-nat.o \
+	linux-thread.o
 HOST_IPC=-DBSD_IPC
 GDBSERVER_DEPFILES= low-sparc.o
diff --git a/gdb/config/sparc/nm-linux.h b/gdb/config/sparc/nm-linux.h
index f6f26bc..1b79823 100644
--- a/gdb/config/sparc/nm-linux.h
+++ b/gdb/config/sparc/nm-linux.h
@@ -27,6 +27,3 @@
 
 #define KERNEL_U_SIZE kernel_u_size()
 extern int kernel_u_size PARAMS ((void));
-
-/* Linux is svr4ish but not that much */
-#undef USE_PROC_FS
diff --git a/gdb/config/sparc/tm-linux.h b/gdb/config/sparc/tm-linux.h
index 8822f1d..906aaec 100644
--- a/gdb/config/sparc/tm-linux.h
+++ b/gdb/config/sparc/tm-linux.h
@@ -25,6 +25,6 @@
 
 #define SIGCONTEXT_PC_OFFSET 12
 
-#include "tm-sysv4.h"
+#include "tm-linux.h"
 
 #endif /* TM_SPARCLINUX_H */
diff --git a/gdb/config/tm-linux.h b/gdb/config/tm-linux.h
new file mode 100644
index 0000000..d1040ac
--- /dev/null
+++ b/gdb/config/tm-linux.h
@@ -0,0 +1,36 @@
+/* Native support for GNU/Linux, for GDB, the GNU debugger.
+   Copyright (C) 1999
+   Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+/* Some versions of Linux have real-time signal support in the C library, and
+   some don't.  We have to include this file to find out.  */
+#include <signal.h>
+
+#ifdef __SIGRTMIN
+#define REALTIME_LO __SIGRTMIN
+#define REALTIME_HI (__SIGRTMAX + 1)
+#else
+#define REALTIME_LO 32
+#define REALTIME_HI 64
+#endif
+
+/* We need this file for the SOLIB_TRAMPOLINE stuff. */
+
+#include "tm-sysv4.h"