* sysdeps/unix/sysv/linux/mips/profil-counter: New. * sysdeps/unix/sysv/linux/mips/sigcontextinfo.h: Port to n32/n64. * sysdeps/unix/sysv/linux/mips/bits/sigcontext.h: New. * sysdeps/unix/sysv/linux/mips/sys/ucontext.h: Port to n32/n64. (mcontext_t): Make it match the 32-bit mips kernel in o32. * sysdeps/unix/sysv/linux/mips/sys/user.h: Bring in constants from the mips and mips64 headers. (struct user): Port to n32/n64.

2003-04-13  Alexandre Oliva  <aoliva@redhat.com>

	* sysdeps/unix/sysv/linux/mips/profil-counter: New.
	* sysdeps/unix/sysv/linux/mips/sigcontextinfo.h: Port to n32/n64.
	* sysdeps/unix/sysv/linux/mips/bits/sigcontext.h: New.
	* sysdeps/unix/sysv/linux/mips/sys/ucontext.h: Port to n32/n64.
	(mcontext_t): Make it match the 32-bit mips kernel in o32.
	* sysdeps/unix/sysv/linux/mips/sys/user.h: Bring in constants from
	the mips and mips64 headers.
	(struct user): Port to n32/n64.

5 files changed, 330 insertions, 21 deletions

diff --git a/sysdeps/unix/sysv/linux/mips/bits/sigcontext.h b/sysdeps/unix/sysv/linux/mips/bits/sigcontext.h
new file mode 100644
index 0000000000..888c05f6b6
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mips/bits/sigcontext.h
@@ -0,0 +1,103 @@
+/* Copyright (C) 1996, 1997, 1998, 2003 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H
+# error "Never use <bits/sigcontext.h> directly; include <signal.h> instead."
+#endif
+
+#ifndef sigcontext_struct
+/* Kernel headers before 2.1.1 define a struct sigcontext_struct, but
+   we need sigcontext.  */
+# define sigcontext_struct sigcontext
+
+/* # include <asm/sigcontext.h> */
+/* Instead of including the kernel header, that will vary depending on
+   whether the 32- or the 64-bit kernel is installed, we paste the
+   contents here.  In case you're wondering about the different
+   licenses, the fact that the file is pasted, instead of included,
+   doesn't really make any difference for the program that includes
+   this header.  */
+#if _MIPS_SIM == _MIPS_SIM_ABI32
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1996, 1997, 2000 by Ralf Baechle
+ */
+#ifndef _ASM_SIGCONTEXT_H
+#define _ASM_SIGCONTEXT_H
+
+/*
+ * Keep this struct definition in sync with the sigcontext fragment
+ * in arch/mips/tools/offset.c
+ */
+struct sigcontext {
+	unsigned int       sc_regmask;		/* Unused */
+	unsigned int       sc_status;
+	unsigned long long sc_pc;
+	unsigned long long sc_regs[32];
+	unsigned long long sc_fpregs[32];
+	unsigned int       sc_ownedfp;		/* Unused */
+	unsigned int       sc_fpc_csr;
+	unsigned int       sc_fpc_eir;		/* Unused */
+	unsigned int       sc_used_math;
+	unsigned int       sc_ssflags;		/* Unused */
+	unsigned long long sc_mdhi;
+	unsigned long long sc_mdlo;
+
+	unsigned int       sc_cause;		/* Unused */
+	unsigned int       sc_badvaddr;		/* Unused */
+
+	unsigned long      sc_sigset[4];	/* kernel's sigset_t */
+};
+
+#endif /* _ASM_SIGCONTEXT_H */
+#else /* _MIPS_SIM != _MIPS_SIM_ABI32 */
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1996, 1997, 1999 by Ralf Baechle
+ * Copyright (C) 1999 Silicon Graphics, Inc.
+ */
+#ifndef _ASM_SIGCONTEXT_H
+#define _ASM_SIGCONTEXT_H
+
+/*
+ * Keep this struct definition in sync with the sigcontext fragment
+ * in arch/mips/tools/offset.c
+ */
+struct sigcontext {
+	unsigned long long sc_regs[32];
+	unsigned long long sc_fpregs[32];
+	unsigned long long sc_mdhi;
+	unsigned long long sc_mdlo;
+	unsigned long long sc_pc;
+	unsigned int       sc_status;
+	unsigned int       sc_fpc_csr;
+	unsigned int       sc_fpc_eir;
+	unsigned int       sc_used_math;
+	unsigned int       sc_cause;
+	unsigned int       sc_badvaddr;
+};
+
+#endif /* _ASM_SIGCONTEXT_H */
+#endif /* _MIPS_SIM != _MIPS_SIM_ABI32 */
+#endif
diff --git a/sysdeps/unix/sysv/linux/mips/profil-counter.h b/sysdeps/unix/sysv/linux/mips/profil-counter.h
new file mode 100644
index 0000000000..8a6a0bcf3d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/mips/profil-counter.h
@@ -0,0 +1,2 @@
+/* We can use the ix86 version.  */
+#include <sysdeps/unix/sysv/linux/i386/profil-counter.h>
diff --git a/sysdeps/unix/sysv/linux/mips/sigcontextinfo.h b/sysdeps/unix/sysv/linux/mips/sigcontextinfo.h
index a51c6f043c..3ab6d99e75 100644
--- a/sysdeps/unix/sysv/linux/mips/sigcontextinfo.h
+++ b/sysdeps/unix/sysv/linux/mips/sigcontextinfo.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2000, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Andreas Jaeger <aj@suse.de>, 2000.
 
@@ -18,6 +18,8 @@
    02111-1307 USA.  */
 
 
+#if _MIPS_SIM == _MIPS_SIM_ABI32
+
 #define SIGCONTEXT unsigned long _code, struct sigcontext *
 #define SIGCONTEXT_EXTRA_ARGS _code,
 #define GET_PC(ctx)	((void *) ctx->sc_pc)
@@ -25,3 +27,15 @@
 #define GET_STACK(ctx)	((void *) ctx->sc_regs[29])
 #define CALL_SIGHANDLER(handler, signo, ctx) \
   (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))
+
+#else
+
+#define SIGCONTEXT unsigned long _code, ucontext_t *
+#define SIGCONTEXT_EXTRA_ARGS _code,
+#define GET_PC(ctx)	((void *) ctx->uc_mcontext.pc)
+#define GET_FRAME(ctx)	((void *) ctx->uc_mcontext.gregs[30])
+#define GET_STACK(ctx)	((void *) ctx->uc_mcontext.gregs[29])
+#define CALL_SIGHANDLER(handler, signo, ctx) \
+  (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/mips/sys/ucontext.h b/sysdeps/unix/sysv/linux/mips/sys/ucontext.h
index 9d80b4086a..66c729a4f9 100644
--- a/sysdeps/unix/sysv/linux/mips/sys/ucontext.h
+++ b/sysdeps/unix/sysv/linux/mips/sys/ucontext.h
@@ -29,47 +29,72 @@
 #include <bits/sigcontext.h>
 
 
-/* Type for general register.  */
-#if defined _ABIN32 && _MIPS_SIM == _ABIN32
+/* Type for general register.  Even in o32 we assume 64-bit registers,
+   like the kernel.  */
 __extension__ typedef unsigned long long int greg_t;
-#else
-typedef unsigned long int greg_t;
-#endif
 
 /* Number of general registers.  */
-#define NGREG	37
-#define NFPREG	33
+#define NGREG	32
+#define NFPREG	32
 
 /* Container for all general registers.  */
-/* gregset_t must be an array.  The below declared array corresponds to:
-typedef struct gregset {
-	greg_t	g_regs[32];
-	greg_t	g_hi;
-	greg_t	g_lo;
-	greg_t	g_pad[3];
-} gregset_t;  */
 typedef greg_t gregset_t[NGREG];
 
 /* Container for all FPU registers.  */
 typedef struct fpregset {
 	union {
-		double	fp_dregs[32];
+		double	fp_dregs[NFPREG];
 		struct {
 			float		_fp_fregs;
 			unsigned int	_fp_pad;
-		} fp_fregs[32];
+		} fp_fregs[NFPREG];
 	} fp_r;
-	unsigned int	fp_csr;
-	unsigned int	fp_pad;
 } fpregset_t;
 
 
 /* Context to describe whole processor state.  */
+#if _MIPS_SIM == _MIPS_SIM_ABI32
+/* Earlier versions of glibc for mips had an entirely different
+   definition of mcontext_t, that didn't even resemble the
+   corresponding kernel data structure.  Since all legitimate uses of
+   ucontext_t in glibc mustn't have accessed anything beyond
+   uc_mcontext and, even then, taking a pointer to it, casting it to
+   sigcontext_t, and accessing it as such, which is what it has always
+   been, this can still be rectified.  Fortunately, makecontext,
+   [gs]etcontext et all have never been implemented.  */
+typedef struct
+  {
+    unsigned int regmask;
+    unsigned int status;
+    greg_t pc;
+    gregset_t gregs;
+    fpregset_t fpregs;
+    unsigned int fp_owned;
+    unsigned int fpc_csr;
+    unsigned int fpc_eir;
+    unsigned int used_math;
+    unsigned int ssflags;
+    greg_t mdhi;
+    greg_t mdlo;
+    unsigned int cause;
+    unsigned int badvaddr;
+  } mcontext_t;
+#else
 typedef struct
   {
     gregset_t gregs;
     fpregset_t fpregs;
+    greg_t mdhi;
+    greg_t mdlo;
+    greg_t pc;
+    unsigned int status;
+    unsigned int fpc_csr;
+    unsigned int fpc_eir;
+    unsigned int used_math;
+    unsigned int cause;
+    unsigned int badvaddr;
   } mcontext_t;
+#endif
 
 /* Userlevel context.  */
 typedef struct ucontext
diff --git a/sysdeps/unix/sysv/linux/mips/sys/user.h b/sysdeps/unix/sysv/linux/mips/sys/user.h
index 21f7b28ca1..8b21ff2786 100644
--- a/sysdeps/unix/sysv/linux/mips/sys/user.h
+++ b/sysdeps/unix/sysv/linux/mips/sys/user.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002 Free Software Foundation, Inc.
+/* Copyright (C) 2002, 2003 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -23,7 +23,154 @@
    too much into it.  Don't use it for anything other than GDB unless
    you know what you are doing.  */
 
-#include <asm/reg.h>
+/* #include <asm/reg.h> */
+/* Instead of including the kernel header, that will vary depending on
+   whether the 32- or the 64-bit kernel is installed, we paste its
+   contents here.  Note that the fact that the file is inline here,
+   instead of included separately, doesn't change in any way the
+   licensing status of a program that includes user.h.  Since this is
+   for gdb alone, and gdb is GPLed, no surprises here.  */
+#if _MIPS_SIM == _MIPS_SIM_ABI32
+/*
+ * Various register offset definitions for debuggers, core file
+ * examiners and whatnot.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995, 1999 by Ralf Baechle
+ */
+#ifndef __ASM_MIPS_REG_H
+#define __ASM_MIPS_REG_H
+
+/*
+ * This defines/structures correspond to the register layout on stack -
+ * if the order here is changed, it needs to be updated in
+ * include/asm-mips/stackframe.h
+ */
+#define EF_REG0			6
+#define EF_REG1			7
+#define EF_REG2			8
+#define EF_REG3			9
+#define EF_REG4			10
+#define EF_REG5			11
+#define EF_REG6			12
+#define EF_REG7			13
+#define EF_REG8			14
+#define EF_REG9			15
+#define EF_REG10		16
+#define EF_REG11		17
+#define EF_REG12		18
+#define EF_REG13		19
+#define EF_REG14		20
+#define EF_REG15		21
+#define EF_REG16		22
+#define EF_REG17		23
+#define EF_REG18		24
+#define EF_REG19		25
+#define EF_REG20		26
+#define EF_REG21		27
+#define EF_REG22		28
+#define EF_REG23		29
+#define EF_REG24		30
+#define EF_REG25		31
+/*
+ * k0/k1 unsaved
+ */
+#define EF_REG28		34
+#define EF_REG29		35
+#define EF_REG30		36
+#define EF_REG31		37
+
+/*
+ * Saved special registers
+ */
+#define EF_LO			38
+#define EF_HI			39
+
+#define EF_CP0_EPC		40
+#define EF_CP0_BADVADDR		41
+#define EF_CP0_STATUS		42
+#define EF_CP0_CAUSE		43
+
+#define EF_SIZE			180	/* size in bytes */
+
+#endif /* __ASM_MIPS_REG_H */
+
+#else /* _MIPS_SIM != _MIPS_SIM_ABI32 */
+
+/*
+ * Various register offset definitions for debuggers, core file
+ * examiners and whatnot.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1995, 1999 Ralf Baechle
+ * Copyright (C) 1995, 1999 Silicon Graphics
+ */
+#ifndef _ASM_REG_H
+#define _ASM_REG_H
+
+/*
+ * This defines/structures correspond to the register layout on stack -
+ * if the order here is changed, it needs to be updated in
+ * include/asm-mips/stackframe.h
+ */
+#define EF_REG0			 0
+#define EF_REG1			 1
+#define EF_REG2			 2
+#define EF_REG3			 3
+#define EF_REG4			 4
+#define EF_REG5			 5
+#define EF_REG6			 6
+#define EF_REG7			 7
+#define EF_REG8			 8
+#define EF_REG9			 9
+#define EF_REG10		10
+#define EF_REG11		11
+#define EF_REG12		12
+#define EF_REG13		13
+#define EF_REG14		14
+#define EF_REG15		15
+#define EF_REG16		16
+#define EF_REG17		17
+#define EF_REG18		18
+#define EF_REG19		19
+#define EF_REG20		20
+#define EF_REG21		21
+#define EF_REG22		22
+#define EF_REG23		23
+#define EF_REG24		24
+#define EF_REG25		25
+/*
+ * k0/k1 unsaved
+ */
+#define EF_REG28		28
+#define EF_REG29		29
+#define EF_REG30		30
+#define EF_REG31		31
+
+/*
+ * Saved special registers
+ */
+#define EF_LO			32
+#define EF_HI			33
+
+#define EF_CP0_EPC		34
+#define EF_CP0_BADVADDR		35
+#define EF_CP0_STATUS		36
+#define EF_CP0_CAUSE		37
+
+#define EF_SIZE			304	/* size in bytes */
+
+#endif /* _ASM_REG_H */
+
+#endif /* _MIPS_SIM != _MIPS_SIM_ABI32 */
+
+#if _MIPS_SIM == _MIPS_SIM_ABI32
 
 struct user
 {
@@ -40,6 +187,24 @@ struct user
   char		u_comm[32];		/* user command name */
 };
 
+#else
+
+struct user {
+  __extension__ unsigned long	regs[EF_SIZE/8+64]; /* integer and fp regs */
+  __extension__ unsigned long	u_tsize;	/* text size (pages) */
+  __extension__ unsigned long	u_dsize;	/* data size (pages) */
+  __extension__ unsigned long	u_ssize;	/* stack size (pages) */
+  __extension__ unsigned long long start_code;	/* text starting address */
+  __extension__ unsigned long long start_data;	/* data starting address */
+  __extension__ unsigned long long start_stack;	/* stack starting address */
+  __extension__ long long	signal;		/* signal causing core dump */
+  __extension__ unsigned long long u_ar0;	/* help gdb find registers */
+  __extension__ unsigned long long magic;	/* identifies a core file */
+  char		u_comm[32];		/* user command name */
+};
+
+#endif
+
 #define PAGE_SHIFT		12
 #define PAGE_SIZE		(1UL << PAGE_SHIFT)
 #define PAGE_MASK		(~(PAGE_SIZE-1))