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-rw-r--r--libc/sysdeps/linux/alpha/bits/atomicity.h102
-rw-r--r--libc/sysdeps/linux/alpha/bits/machine-gmon.h26
-rw-r--r--libc/sysdeps/linux/alpha/bits/sigcontextinfo.h25
-rw-r--r--libc/sysdeps/linux/alpha/bits/stackinfo.h28
-rw-r--r--libc/sysdeps/linux/arm/bits/armsigctx.h73
-rw-r--r--libc/sysdeps/linux/arm/bits/atomicity.h87
-rw-r--r--libc/sysdeps/linux/arm/bits/machine-gmon.h67
-rw-r--r--libc/sysdeps/linux/arm/bits/profil-counter.h32
-rw-r--r--libc/sysdeps/linux/arm/bits/sigcontextinfo.h35
-rw-r--r--libc/sysdeps/linux/arm/bits/stackinfo.h28
-rw-r--r--libc/sysdeps/linux/common/.cvsignore1
-rw-r--r--libc/sysdeps/linux/common/Makefile6
-rw-r--r--libc/sysdeps/linux/common/bits/atomicity.h54
-rw-r--r--libc/sysdeps/linux/common/bits/machine-gmon.h54
-rw-r--r--libc/sysdeps/linux/common/bits/profil-counter.h27
-rw-r--r--libc/sysdeps/linux/common/bits/sigcontextinfo.h27
-rw-r--r--libc/sysdeps/linux/common/bits/stackinfo.h34
-rw-r--r--libc/sysdeps/linux/common/gmon-start.c58
-rw-r--r--libc/sysdeps/linux/common/gmon.c641
-rw-r--r--libc/sysdeps/linux/common/initfini.c5
-rw-r--r--libc/sysdeps/linux/cris/bits/machine-gmon.h28
-rw-r--r--libc/sysdeps/linux/cris/bits/profil-counter.h26
-rw-r--r--libc/sysdeps/linux/cris/bits/stackinfo.h28
-rw-r--r--libc/sysdeps/linux/i386/Makefile13
-rw-r--r--libc/sysdeps/linux/i386/bits/atomicity.h57
-rw-r--r--libc/sysdeps/linux/i386/bits/machine-gmon.h41
-rw-r--r--libc/sysdeps/linux/i386/bits/profil-counter.h27
-rw-r--r--libc/sysdeps/linux/i386/bits/sigcontextinfo.h51
-rw-r--r--libc/sysdeps/linux/i386/bits/stackinfo.h28
-rw-r--r--libc/sysdeps/linux/i386/crt0.S7
-rw-r--r--libc/sysdeps/linux/i386/mcount.S54
-rw-r--r--libc/sysdeps/linux/m68k/bits/atomicity.h64
-rw-r--r--libc/sysdeps/linux/m68k/bits/sigcontextinfo.h26
-rw-r--r--libc/sysdeps/linux/m68k/bits/stackinfo.h28
-rw-r--r--libc/sysdeps/linux/mips/bits/atomicity.h98
-rw-r--r--libc/sysdeps/linux/mips/bits/machine-gmon.h68
-rw-r--r--libc/sysdeps/linux/mips/bits/sigcontextinfo.h27
-rw-r--r--libc/sysdeps/linux/mips/bits/stackinfo.h28
-rw-r--r--libc/sysdeps/linux/powerpc/bits/atomicity.h104
-rw-r--r--libc/sysdeps/linux/powerpc/bits/machine-gmon.h31
-rw-r--r--libc/sysdeps/linux/powerpc/bits/profil-counter.h28
-rw-r--r--libc/sysdeps/linux/powerpc/bits/sigcontextinfo.h27
-rw-r--r--libc/sysdeps/linux/powerpc/bits/stackinfo.h28
-rw-r--r--libc/sysdeps/linux/sh/bits/machine-gmon.h32
-rw-r--r--libc/sysdeps/linux/sh/bits/profil-counter.h28
-rw-r--r--libc/sysdeps/linux/sh/bits/sigcontextinfo.h27
-rw-r--r--libc/sysdeps/linux/sh/bits/stackinfo.h28
-rw-r--r--libc/sysdeps/linux/sparc/bits/atomicity.h98
-rw-r--r--libc/sysdeps/linux/sparc/bits/profil-counter.h26
-rw-r--r--libc/sysdeps/linux/sparc/bits/sigcontextinfo.h29
-rw-r--r--libc/sysdeps/linux/sparc/bits/stackinfo.h28
-rw-r--r--libc/sysdeps/linux/v850/bits/sigcontextinfo.h17
-rw-r--r--libc/sysdeps/linux/v850/bits/stackinfo.h23
53 files changed, 2660 insertions, 3 deletions
diff --git a/libc/sysdeps/linux/alpha/bits/atomicity.h b/libc/sysdeps/linux/alpha/bits/atomicity.h
new file mode 100644
index 000000000..9388f2384
--- /dev/null
+++ b/libc/sysdeps/linux/alpha/bits/atomicity.h
@@ -0,0 +1,102 @@
+/* Low-level functions for atomic operations. Alpha version.
+ Copyright (C) 1999 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. */
+
+#ifndef _ATOMICITY_H
+#define _ATOMICITY_H 1
+
+#include <inttypes.h>
+
+
+static inline int
+__attribute__ ((unused))
+exchange_and_add (volatile uint32_t *mem, int val)
+{
+ register int result, tmp;
+
+ __asm__ __volatile__ (
+ "/* Inline exchange & add */\n"
+ "1:\t"
+ "ldl_l %0,%3\n\t"
+ "addl %0,%4,%1\n\t"
+ "stl_c %1,%2\n\t"
+ "beq %1,2f\n"
+ ".subsection 1\n"
+ "2:\t"
+ "br 1b\n"
+ ".previous\n\t"
+ "mb\n\t"
+ "/* End exchange & add */"
+ : "=&r"(result), "=&r"(tmp), "=m"(*mem)
+ : "m" (*mem), "r"(val));
+
+ return result;
+}
+
+static inline void
+__attribute__ ((unused))
+atomic_add (volatile uint32_t *mem, int val)
+{
+ register int result;
+
+ __asm__ __volatile__ (
+ "/* Inline exchange & add */\n"
+ "1:\t"
+ "ldl_l %0,%2\n\t"
+ "addl %0,%3,%0\n\t"
+ "stl_c %0,%1\n\t"
+ "beq %0,2f\n\t"
+ ".subsection 1\n"
+ "2:\t"
+ "br 1b\n"
+ ".previous\n\t"
+ "mb\n\t"
+ "/* End exchange & add */"
+ : "=&r"(result), "=m"(*mem)
+ : "m" (*mem), "r"(val));
+}
+
+static inline long
+__attribute__ ((unused))
+compare_and_swap (volatile long int *p, long int oldval, long int newval)
+{
+ long int ret;
+
+ __asm__ __volatile__ (
+ "/* Inline compare & swap */\n"
+ "1:\t"
+ "ldq_l %0,%4\n\t"
+ "cmpeq %0,%2,%0\n\t"
+ "beq %0,3f\n\t"
+ "mov %3,%0\n\t"
+ "stq_c %0,%1\n\t"
+ "beq %0,2f\n\t"
+ ".subsection 1\n"
+ "2:\t"
+ "br 1b\n"
+ ".previous\n\t"
+ "3:\t"
+ "mb\n\t"
+ "/* End compare & swap */"
+ : "=&r"(ret), "=m"(*p)
+ : "r"(oldval), "r"(newval), "m"(*p));
+
+ return ret;
+}
+
+#endif /* atomicity.h */
diff --git a/libc/sysdeps/linux/alpha/bits/machine-gmon.h b/libc/sysdeps/linux/alpha/bits/machine-gmon.h
new file mode 100644
index 000000000..5f5522c0b
--- /dev/null
+++ b/libc/sysdeps/linux/alpha/bits/machine-gmon.h
@@ -0,0 +1,26 @@
+/* Machine-specific calling sequence for `mcount' profiling function. alpha
+ Copyright (C) 1995, 1996, 1997 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. */
+
+#define _MCOUNT_DECL(from, self) \
+ void __mcount (u_long from, u_long self)
+
+/* Call __mcount with our the return PC for our caller, and the return
+ PC our caller will return to. Empty since we use an assembly stub
+ instead. */
+#define MCOUNT
diff --git a/libc/sysdeps/linux/alpha/bits/sigcontextinfo.h b/libc/sysdeps/linux/alpha/bits/sigcontextinfo.h
new file mode 100644
index 000000000..eb6f4f075
--- /dev/null
+++ b/libc/sysdeps/linux/alpha/bits/sigcontextinfo.h
@@ -0,0 +1,25 @@
+/* Copyright (C) 1999 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. */
+
+#define SIGCONTEXT struct sigcontext
+#define SIGCONTEXT_EXTRA_ARGS
+#define GET_PC(ctx) ((void *) (ctx).sc_pc)
+#define GET_FRAME(ctx) ((void *) (ctx).sc_regs[15])
+#define GET_STACK(ctx) ((void *) (ctx).sc_regs[30])
+#define CALL_SIGHANDLER(handler, signo, ctx) \
+ (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))
diff --git a/libc/sysdeps/linux/alpha/bits/stackinfo.h b/libc/sysdeps/linux/alpha/bits/stackinfo.h
new file mode 100644
index 000000000..0a281bd43
--- /dev/null
+++ b/libc/sysdeps/linux/alpha/bits/stackinfo.h
@@ -0,0 +1,28 @@
+/* Copyright (C) 2001 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. */
+
+/* This file contains a bit of information about the stack allocation
+ of the processor. */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H 1
+
+/* On Alpha the stack grows down. */
+#define _STACK_GROWS_DOWN 1
+
+#endif /* stackinfo.h */
diff --git a/libc/sysdeps/linux/arm/bits/armsigctx.h b/libc/sysdeps/linux/arm/bits/armsigctx.h
new file mode 100644
index 000000000..4530cdbda
--- /dev/null
+++ b/libc/sysdeps/linux/arm/bits/armsigctx.h
@@ -0,0 +1,73 @@
+/* Definition of `struct sigcontext' for Linux/ARM
+ Copyright (C) 1996, 1997, 1998, 1999, 2000 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. */
+
+/* The format of struct sigcontext changed between 2.0 and 2.1 kernels.
+ Fortunately 2.0 puts a magic number in the first word and this is not
+ a legal value for `trap_no', so we can tell them apart. */
+
+/* Early 2.2 and 2.3 kernels do not have the `fault_address' member in
+ the sigcontext structure. Unfortunately there is no reliable way
+ to test for its presence and this word will contain garbage for too-old
+ kernels. Versions 2.2.14 and 2.3.35 (plus later versions) are known to
+ include this element. */
+
+#ifndef __ARMSIGCTX_H
+#define __ARMSIGCTX_H 1
+
+#include <asm/ptrace.h>
+
+union k_sigcontext
+ {
+ struct
+ {
+ unsigned long int trap_no;
+ unsigned long int error_code;
+ unsigned long int oldmask;
+ unsigned long int arm_r0;
+ unsigned long int arm_r1;
+ unsigned long int arm_r2;
+ unsigned long int arm_r3;
+ unsigned long int arm_r4;
+ unsigned long int arm_r5;
+ unsigned long int arm_r6;
+ unsigned long int arm_r7;
+ unsigned long int arm_r8;
+ unsigned long int arm_r9;
+ unsigned long int arm_r10;
+ unsigned long int arm_fp;
+ unsigned long int arm_ip;
+ unsigned long int arm_sp;
+ unsigned long int arm_lr;
+ unsigned long int arm_pc;
+ unsigned long int arm_cpsr;
+ unsigned long fault_address;
+ } v21;
+ struct
+ {
+ unsigned long int magic;
+ struct pt_regs reg;
+ unsigned long int trap_no;
+ unsigned long int error_code;
+ unsigned long int oldmask;
+ } v20;
+};
+
+#define SIGCONTEXT_2_0_MAGIC 0x4B534154
+
+#endif /* bits/armsigctx.h */
diff --git a/libc/sysdeps/linux/arm/bits/atomicity.h b/libc/sysdeps/linux/arm/bits/atomicity.h
new file mode 100644
index 000000000..1a437a6d3
--- /dev/null
+++ b/libc/sysdeps/linux/arm/bits/atomicity.h
@@ -0,0 +1,87 @@
+/* Low-level functions for atomic operations. ARM version.
+ Copyright (C) 1997, 1998, 1999, 2000 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. */
+
+#ifndef _ATOMICITY_H
+#define _ATOMICITY_H 1
+
+#include <inttypes.h>
+
+
+static inline int
+__attribute__ ((unused))
+exchange_and_add (volatile uint32_t *mem, int val)
+{
+ int tmp1;
+ int tmp2;
+ int result;
+ __asm__ ("\n"
+ "0:\tldr\t%0,[%3]\n\t"
+ "add\t%1,%0,%4\n\t"
+ "swp\t%2,%1,[%3]\n\t"
+ "cmp\t%0,%2\n\t"
+ "swpne\t%1,%2,[%3]\n\t"
+ "bne\t0b"
+ : "=&r" (result), "=&r" (tmp1), "=&r" (tmp2)
+ : "r" (mem), "r"(val)
+ : "cc", "memory");
+ return result;
+}
+
+static inline void
+__attribute__ ((unused))
+atomic_add (volatile uint32_t *mem, int val)
+{
+ int tmp1;
+ int tmp2;
+ int tmp3;
+ __asm__ ("\n"
+ "0:\tldr\t%0,[%3]\n\t"
+ "add\t%1,%0,%4\n\t"
+ "swp\t%2,%1,[%3]\n\t"
+ "cmp\t%0,%2\n\t"
+ "swpne\t%1,%2,[%3]\n\t"
+ "bne\t0b"
+ : "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3)
+ : "r" (mem), "r"(val)
+ : "cc", "memory");
+}
+
+static inline int
+__attribute__ ((unused))
+compare_and_swap (volatile long int *p, long int oldval, long int newval)
+{
+ int result, tmp;
+ __asm__ ("\n"
+ "0:\tldr\t%1,[%2]\n\t"
+ "mov\t%0,#0\n\t"
+ "cmp\t%1,%4\n\t"
+ "bne\t1f\n\t"
+ "swp\t%0,%3,[%2]\n\t"
+ "cmp\t%1,%0\n\t"
+ "swpne\t%1,%0,[%2]\n\t"
+ "bne\t0b\n\t"
+ "mov\t%0,#1\n"
+ "1:"
+ : "=&r" (result), "=&r" (tmp)
+ : "r" (p), "r" (newval), "r" (oldval)
+ : "cc", "memory");
+ return result;
+}
+
+#endif /* atomicity.h */
diff --git a/libc/sysdeps/linux/arm/bits/machine-gmon.h b/libc/sysdeps/linux/arm/bits/machine-gmon.h
new file mode 100644
index 000000000..039dfd951
--- /dev/null
+++ b/libc/sysdeps/linux/arm/bits/machine-gmon.h
@@ -0,0 +1,67 @@
+/* Machine-dependent definitions for profiling support. ARM version.
+ Copyright (C) 1996, 1997, 1998 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. */
+
+/* GCC for the ARM cannot compile __builtin_return_address(N) for N != 0,
+ so we must use an assembly stub. */
+
+#include <sysdep.h>
+#ifndef NO_UNDERSCORES
+/* The asm symbols for C functions are `_function'.
+ The canonical name for the counter function is `mcount', no _. */
+void _mcount (void) asm ("mcount");
+#else
+/* The canonical name for the function is `_mcount' in both C and asm,
+ but some old asm code might assume it's `mcount'. */
+void _mcount (void);
+weak_alias (_mcount, mcount)
+#endif
+
+static void mcount_internal (u_long frompc, u_long selfpc);
+
+#define _MCOUNT_DECL(frompc, selfpc) \
+static void mcount_internal (u_long frompc, u_long selfpc)
+
+/* This macro/func MUST save r0, r1 because the compiler inserts
+ blind calls to _mount(), ignoring the fact that _mcount may
+ clobber registers; therefore, _mcount may NOT clobber registers */
+/* if (this_fp!=0) {
+ r0 = this_fp
+ r1 = this_lr
+ r1 = [r1-4] which is caller's lr
+ if (r1!=0)
+ r1 = caller's lr
+ call mcount_internal(this_lr, caller's_lr)
+ }
+*/
+
+#define MCOUNT \
+void _mcount (void) \
+{ \
+ __asm__("stmdb sp!, {r0, r1, r2, r3};" \
+ "movs fp, fp;" \
+ "moveq r1, #0;" \
+ "ldrne r1, [fp, $-4];" \
+ "ldrne r0, [fp, $-12];" \
+ "movnes r0, r0;" \
+ "ldrne r0, [r0, $-4];" \
+ "movs r0, r0;" \
+ "blne mcount_internal;" \
+ "ldmia sp!, {r0, r1, r2, r3}"); \
+}
+
diff --git a/libc/sysdeps/linux/arm/bits/profil-counter.h b/libc/sysdeps/linux/arm/bits/profil-counter.h
new file mode 100644
index 000000000..5d8be9dba
--- /dev/null
+++ b/libc/sysdeps/linux/arm/bits/profil-counter.h
@@ -0,0 +1,32 @@
+/* Low-level statistical profiling support function. Linux/ARM version.
+ Copyright (C) 1996, 1997, 1998 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. */
+
+#include <signal.h>
+#include <bits/armsigctx.h>
+
+void
+profil_counter (int signo, int _a2, int _a3, int _a4, union k_sigcontext sc)
+{
+ void *pc;
+ if (sc.v20.magic == SIGCONTEXT_2_0_MAGIC)
+ pc = (void *) sc.v20.reg.ARM_pc;
+ else
+ pc = (void *) sc.v21.arm_pc;
+ profil_count (pc);
+}
diff --git a/libc/sysdeps/linux/arm/bits/sigcontextinfo.h b/libc/sysdeps/linux/arm/bits/sigcontextinfo.h
new file mode 100644
index 000000000..aebc3cfd5
--- /dev/null
+++ b/libc/sysdeps/linux/arm/bits/sigcontextinfo.h
@@ -0,0 +1,35 @@
+/* Copyright (C) 1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Philip Blundell <philb@gnu.org>, 1999.
+
+ 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. */
+
+#include <bits/armsigctx.h>
+
+#define SIGCONTEXT int _a2, int _a3, int _a4, union k_sigcontext
+#define SIGCONTEXT_EXTRA_ARGS _a2, _a3, _a4,
+
+#define GET_PC(ctx) ((void *)((ctx.v20.magic == SIGCONTEXT_2_0_MAGIC) ? \
+ ctx.v20.reg.ARM_pc : ctx.v21.arm_pc))
+#define GET_FRAME(ctx) \
+ ADVANCE_STACK_FRAME((void *)((ctx.v20.magic == SIGCONTEXT_2_0_MAGIC) ? \
+ ctx.v20.reg.ARM_fp : ctx.v21.arm_fp))
+#define GET_STACK(ctx) ((void *)((ctx.v20.magic == SIGCONTEXT_2_0_MAGIC) ? \
+ ctx.v20.reg.ARM_sp : ctx.v21.arm_sp))
+#define ADVANCE_STACK_FRAME(frm) \
+ ((struct layout *)frm - 1)
+#define CALL_SIGHANDLER(handler, signo, ctx) \
+ (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))
diff --git a/libc/sysdeps/linux/arm/bits/stackinfo.h b/libc/sysdeps/linux/arm/bits/stackinfo.h
new file mode 100644
index 000000000..2410ba9bd
--- /dev/null
+++ b/libc/sysdeps/linux/arm/bits/stackinfo.h
@@ -0,0 +1,28 @@
+/* Copyright (C) 2001 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. */
+
+/* This file contains a bit of information about the stack allocation
+ of the processor. */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H 1
+
+/* On Arm the stack grows down. */
+#define _STACK_GROWS_DOWN 1
+
+#endif /* stackinfo.h */
diff --git a/libc/sysdeps/linux/common/.cvsignore b/libc/sysdeps/linux/common/.cvsignore
index f8fa8225d..0232d6900 100644
--- a/libc/sysdeps/linux/common/.cvsignore
+++ b/libc/sysdeps/linux/common/.cvsignore
@@ -1,3 +1,4 @@
crti.S
crtn.S
initfini.S
+gmon-start.S
diff --git a/libc/sysdeps/linux/common/Makefile b/libc/sysdeps/linux/common/Makefile
index 5b9717f2b..d51fc4281 100644
--- a/libc/sysdeps/linux/common/Makefile
+++ b/libc/sysdeps/linux/common/Makefile
@@ -29,6 +29,9 @@ CSRC= waitpid.c getdnnm.c gethstnm.c getcwd.c ptrace.c \
ifneq ($(strip $(EXCLUDE_BRK)),y)
CSRC+=sbrk.c
endif
+ifeq ($(strip $(UCLIBC_PROFILING)),y)
+CSRC+=gmon.c
+endif
COBJS=$(patsubst %.c,%.o, $(CSRC))
MSRC=syscalls.c
@@ -44,6 +47,9 @@ SAFECFLAGS := $(subst -g,,$(SAFECFLAGS))
ifeq ($(strip $(DOPIC)),y)
SAFECFLAGS+=-fPIC
endif
+ifeq ($(strip $(UCLIBC_PROFILING)),y)
+SAFECFLAGS+=-DGMON_SUPPORT
+endif
OBJ=$(COBJS) $(MOBJ)
diff --git a/libc/sysdeps/linux/common/bits/atomicity.h b/libc/sysdeps/linux/common/bits/atomicity.h
new file mode 100644
index 000000000..1a756498b
--- /dev/null
+++ b/libc/sysdeps/linux/common/bits/atomicity.h
@@ -0,0 +1,54 @@
+/* Low-level functions for atomic operations. Stub version.
+ Copyright (C) 1997,2001 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. */
+
+#ifndef _ATOMICITY_H
+#define _ATOMICITY_H 1
+
+#include <inttypes.h>
+
+#warning stub atomicity functions are not really atomic
+
+static inline int
+__attribute__ ((unused))
+exchange_and_add (volatile uint32_t *mem, int val)
+{
+ int result = *mem;
+ *mem += val;
+ return result;
+}
+
+static inline void
+__attribute__ ((unused))
+atomic_add (volatile uint32_t *mem, int val)
+{
+ *mem += val;
+}
+
+static inline int
+__attribute__ ((unused))
+compare_and_swap (volatile long int *p, long int oldval, long int newval)
+{
+ if (*p != oldval)
+ return 0;
+
+ *p = newval;
+ return 1;
+}
+
+#endif /* atomicity.h */
diff --git a/libc/sysdeps/linux/common/bits/machine-gmon.h b/libc/sysdeps/linux/common/bits/machine-gmon.h
new file mode 100644
index 000000000..eb046b068
--- /dev/null
+++ b/libc/sysdeps/linux/common/bits/machine-gmon.h
@@ -0,0 +1,54 @@
+/* Machine-dependent definitions for profiling support. Generic GCC 2 version.
+ Copyright (C) 1996, 1997, 2000 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. */
+
+/* GCC version 2 gives us a perfect magical function to get
+ just the information we need:
+ void *__builtin_return_address (unsigned int N)
+ returns the return address of the frame N frames up. */
+
+/* Be warned that GCC cannot usefully compile __builtin_return_address(N)
+ for N != 0 on all machines. In this case, you may have to write
+ your own version of _mcount(). */
+
+#if __GNUC__ < 2
+ #error "This file uses __builtin_return_address, a GCC 2 extension."
+#endif
+
+#include <sysdep.h>
+#ifndef NO_UNDERSCORES
+/* The asm symbols for C functions are `_function'.
+ The canonical name for the counter function is `mcount', no _. */
+void _mcount (void) asm ("mcount");
+#else
+/* The canonical name for the function is `_mcount' in both C and asm,
+ but some old asm code might assume it's `mcount'. */
+void _mcount (void);
+weak_alias (_mcount, mcount)
+#endif
+
+static void mcount_internal (u_long frompc, u_long selfpc);
+
+#define _MCOUNT_DECL(frompc, selfpc) \
+static inline void mcount_internal (u_long frompc, u_long selfpc)
+
+#define MCOUNT \
+void _mcount (void) \
+{ \
+ mcount_internal ((u_long) RETURN_ADDRESS (1), (u_long) RETURN_ADDRESS (0)); \
+}
diff --git a/libc/sysdeps/linux/common/bits/profil-counter.h b/libc/sysdeps/linux/common/bits/profil-counter.h
new file mode 100644
index 000000000..9cae5840d
--- /dev/null
+++ b/libc/sysdeps/linux/common/bits/profil-counter.h
@@ -0,0 +1,27 @@
+/* Machine-dependent SIGPROF signal handler. "Generic" version w/ sigcontext
+ Copyright (C) 1996, 1997 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. */
+
+/* In many Unix systems signal handlers are called like this
+ and the interrupted PC is easily findable in the `struct sigcontext'. */
+
+static void
+profil_counter (int signr, int code, struct sigcontext *scp)
+{
+ profil_count ((void *) scp->sc_pc);
+}
diff --git a/libc/sysdeps/linux/common/bits/sigcontextinfo.h b/libc/sysdeps/linux/common/bits/sigcontextinfo.h
new file mode 100644
index 000000000..40305b488
--- /dev/null
+++ b/libc/sysdeps/linux/common/bits/sigcontextinfo.h
@@ -0,0 +1,27 @@
+/* Copyright (C) 1998, 1999 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+ 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. */
+
+/* In general we cannot provide any information. */
+#define SIGCONTEXT struct sigcontext *
+#define SIGCONTEXT_EXTRA_ARGS
+#define GET_PC(ctx) ((void *) 0)
+#define GET_FRAME(ctx) ((void *) 0)
+#define GET_STACK(ctx) ((void *) 0)
+#define CALL_SIGHANDLER(handler, signo, ctx) \
+ (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))
diff --git a/libc/sysdeps/linux/common/bits/stackinfo.h b/libc/sysdeps/linux/common/bits/stackinfo.h
new file mode 100644
index 000000000..1ed7b9503
--- /dev/null
+++ b/libc/sysdeps/linux/common/bits/stackinfo.h
@@ -0,0 +1,34 @@
+/* Copyright (C) 1999 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. */
+
+/* This file contains a bit of information about the stack allocation
+ of the processor. Since there is no general truth we can't say
+ anything here. */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H 1
+
+#error Machine stack direction unknown.
+#if 0
+#define _STACK_GROWS_DOWN 1
+#define _STACK_GROWS_UP 1
+#endif
+
+#endif /* stackinfo.h */
+
+
diff --git a/libc/sysdeps/linux/common/gmon-start.c b/libc/sysdeps/linux/common/gmon-start.c
new file mode 100644
index 000000000..6878a7a71
--- /dev/null
+++ b/libc/sysdeps/linux/common/gmon-start.c
@@ -0,0 +1,58 @@
+/* Code to enable profiling at program startup.
+ Copyright (C) 1995,1996,1997,2000,2001,2002 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. */
+
+#include <features.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/gmon.h>
+
+#ifdef __UCLIBC_PROFILING__
+
+/* Beginning and end of our code segment. We cannot declare them
+ as the external functions since we want the addresses of those
+ labels. Taking the address of a function may have different
+ meanings on different platforms. */
+
+extern void _start;
+extern void etext;
+
+
+void __gmon_start__ (void)
+{
+#ifdef __UCLIBC_CTOR_DTOR__
+ /* Protect from being called more than once. Since crti.o is linked
+ into every shared library, each of their init functions will call us. */
+ static int called;
+
+ if (called)
+ return;
+
+ called = 1;
+#endif
+
+ /* Start keeping profiling records. */
+ monstartup ((u_long) &_start, (u_long) &etext);
+
+ /* Call _mcleanup before exiting; it will write out gmon.out from the
+ collected data. */
+ atexit (&_mcleanup);
+}
+#endif
+
diff --git a/libc/sysdeps/linux/common/gmon.c b/libc/sysdeps/linux/common/gmon.c
new file mode 100644
index 000000000..b3fe788f7
--- /dev/null
+++ b/libc/sysdeps/linux/common/gmon.c
@@ -0,0 +1,641 @@
+/*-
+ * Copyright (c) 1983, 1992, 1993
+ * The Regents of the University of California. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <features.h>
+#include <sys/param.h>
+#include <sys/time.h>
+#include <sys/gmon.h>
+#include <sys/gmon_out.h>
+#include <sys/uio.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <signal.h>
+#include <sys/time.h>
+#include <sys/types.h>
+
+#ifdef __UCLIBC_PROFILING__
+
+/* Head of basic-block list or NULL. */
+struct __bb *__bb_head;
+
+struct gmonparam _gmonparam = { GMON_PROF_OFF };
+
+/*
+ * See profil(2) where this is described:
+ */
+static int s_scale;
+#define SCALE_1_TO_1 0x10000L
+
+#define ERR(s) write (STDERR_FILENO, s, sizeof (s) - 1)
+
+void moncontrol __P ((int mode));
+static void write_hist __P ((int fd));
+static void write_call_graph __P ((int fd));
+static void write_bb_counts __P ((int fd));
+
+/*
+ * Control profiling
+ * profiling is what mcount checks to see if
+ * all the data structures are ready.
+ */
+void moncontrol (int mode)
+{
+ struct gmonparam *p = &_gmonparam;
+
+ /* Don't change the state if we ran into an error. */
+ if (p->state == GMON_PROF_ERROR)
+ return;
+
+ if (mode)
+ {
+ /* start */
+ profil((void *) p->kcount, p->kcountsize, p->lowpc, s_scale);
+ p->state = GMON_PROF_ON;
+ }
+ else
+ {
+ /* stop */
+ profil(NULL, 0, 0, 0);
+ p->state = GMON_PROF_OFF;
+ }
+}
+
+
+void monstartup (u_long lowpc, u_long highpc)
+{
+ register int o;
+ char *cp;
+ struct gmonparam *p = &_gmonparam;
+
+ /*
+ * round lowpc and highpc to multiples of the density we're using
+ * so the rest of the scaling (here and in gprof) stays in ints.
+ */
+ p->lowpc = ROUNDDOWN(lowpc, HISTFRACTION * sizeof(HISTCOUNTER));
+ p->highpc = ROUNDUP(highpc, HISTFRACTION * sizeof(HISTCOUNTER));
+ p->textsize = p->highpc - p->lowpc;
+ p->kcountsize = p->textsize / HISTFRACTION;
+ p->hashfraction = HASHFRACTION;
+ p->log_hashfraction = -1;
+ /* The following test must be kept in sync with the corresponding
+ test in mcount.c. */
+ if ((HASHFRACTION & (HASHFRACTION - 1)) == 0) {
+ /* if HASHFRACTION is a power of two, mcount can use shifting
+ instead of integer division. Precompute shift amount. */
+ p->log_hashfraction = ffs(p->hashfraction * sizeof(*p->froms)) - 1;
+ }
+ p->fromssize = p->textsize / HASHFRACTION;
+ p->tolimit = p->textsize * ARCDENSITY / 100;
+ if (p->tolimit < MINARCS)
+ p->tolimit = MINARCS;
+ else if (p->tolimit > MAXARCS)
+ p->tolimit = MAXARCS;
+ p->tossize = p->tolimit * sizeof(struct tostruct);
+
+ cp = calloc (p->kcountsize + p->fromssize + p->tossize, 1);
+ if (! cp)
+ {
+ ERR("monstartup: out of memory\n");
+ p->tos = NULL;
+ p->state = GMON_PROF_ERROR;
+ return;
+ }
+ p->tos = (struct tostruct *)cp;
+ cp += p->tossize;
+ p->kcount = (HISTCOUNTER *)cp;
+ cp += p->kcountsize;
+ p->froms = (ARCINDEX *)cp;
+
+ p->tos[0].link = 0;
+
+ o = p->highpc - p->lowpc;
+ if (p->kcountsize < (u_long) o)
+ {
+#ifndef hp300
+ s_scale = ((float)p->kcountsize / o ) * SCALE_1_TO_1;
+#else
+ /* avoid floating point operations */
+ int quot = o / p->kcountsize;
+
+ if (quot >= 0x10000)
+ s_scale = 1;
+ else if (quot >= 0x100)
+ s_scale = 0x10000 / quot;
+ else if (o >= 0x800000)
+ s_scale = 0x1000000 / (o / (p->kcountsize >> 8));
+ else
+ s_scale = 0x1000000 / ((o << 8) / p->kcountsize);
+#endif
+ } else
+ s_scale = SCALE_1_TO_1;
+
+ moncontrol(1);
+}
+
+
+/* Return frequency of ticks reported by profil. */
+static int profile_frequency (void)
+{
+ /*
+ * Discover the tick frequency of the machine if something goes wrong,
+ * we return 0, an impossible hertz.
+ */
+ struct itimerval tim;
+
+ tim.it_interval.tv_sec = 0;
+ tim.it_interval.tv_usec = 1;
+ tim.it_value.tv_sec = 0;
+ tim.it_value.tv_usec = 0;
+ setitimer(ITIMER_REAL, &tim, 0);
+ setitimer(ITIMER_REAL, 0, &tim);
+ if (tim.it_interval.tv_usec < 2)
+ return 0;
+ return (1000000 / tim.it_interval.tv_usec);
+}
+
+
+static void write_hist (int fd)
+{
+ u_char tag = GMON_TAG_TIME_HIST;
+ struct gmon_hist_hdr thdr __attribute__ ((aligned (__alignof__ (char *))));
+
+ if (_gmonparam.kcountsize > 0)
+ {
+ struct iovec iov[3] =
+ {
+ { &tag, sizeof (tag) },
+ { &thdr, sizeof (struct gmon_hist_hdr) },
+ { _gmonparam.kcount, _gmonparam.kcountsize }
+ };
+
+ *(char **) thdr.low_pc = (char *) _gmonparam.lowpc;
+ *(char **) thdr.high_pc = (char *) _gmonparam.highpc;
+ *(int32_t *) thdr.hist_size = (_gmonparam.kcountsize
+ / sizeof (HISTCOUNTER));
+ *(int32_t *) thdr.prof_rate = profile_frequency ();
+ strncpy (thdr.dimen, "seconds", sizeof (thdr.dimen));
+ thdr.dimen_abbrev = 's';
+
+ writev (fd, iov, 3);
+ }
+}
+
+
+static void write_call_graph (int fd)
+{
+#define NARCS_PER_WRITEV 32
+ u_char tag = GMON_TAG_CG_ARC;
+ struct gmon_cg_arc_record raw_arc[NARCS_PER_WRITEV]
+ __attribute__ ((aligned (__alignof__ (char*))));
+ ARCINDEX from_index, to_index;
+ int from_len;
+ u_long frompc;
+ struct iovec iov[2 * NARCS_PER_WRITEV];
+ int nfilled;
+
+ for (nfilled = 0; nfilled < NARCS_PER_WRITEV; ++nfilled)
+ {
+ iov[2 * nfilled].iov_base = &tag;
+ iov[2 * nfilled].iov_len = sizeof (tag);
+
+ iov[2 * nfilled + 1].iov_base = &raw_arc[nfilled];
+ iov[2 * nfilled + 1].iov_len = sizeof (struct gmon_cg_arc_record);
+ }
+
+ nfilled = 0;
+ from_len = _gmonparam.fromssize / sizeof (*_gmonparam.froms);
+ for (from_index = 0; from_index < from_len; ++from_index)
+ {
+ if (_gmonparam.froms[from_index] == 0)
+ continue;
+
+ frompc = _gmonparam.lowpc;
+ frompc += (from_index * _gmonparam.hashfraction
+ * sizeof (*_gmonparam.froms));
+ for (to_index = _gmonparam.froms[from_index];
+ to_index != 0;
+ to_index = _gmonparam.tos[to_index].link)
+ {
+ struct arc
+ {
+ char *frompc;
+ char *selfpc;
+ int32_t count;
+ }
+ arc;
+
+ arc.frompc = (char *) frompc;
+ arc.selfpc = (char *) _gmonparam.tos[to_index].selfpc;
+ arc.count = _gmonparam.tos[to_index].count;
+ memcpy (raw_arc + nfilled, &arc, sizeof (raw_arc [0]));
+
+ if (++nfilled == NARCS_PER_WRITEV)
+ {
+ writev (fd, iov, 2 * nfilled);
+ nfilled = 0;
+ }
+ }
+ }
+ if (nfilled > 0)
+ writev (fd, iov, 2 * nfilled);
+}
+
+
+static void write_bb_counts (int fd)
+{
+ struct __bb *grp;
+ u_char tag = GMON_TAG_BB_COUNT;
+ size_t ncounts;
+ size_t i;
+
+ struct iovec bbhead[2] =
+ {
+ { &tag, sizeof (tag) },
+ { &ncounts, sizeof (ncounts) }
+ };
+ struct iovec bbbody[8];
+ size_t nfilled;
+
+ for (i = 0; i < (sizeof (bbbody) / sizeof (bbbody[0])); i += 2)
+ {
+ bbbody[i].iov_len = sizeof (grp->addresses[0]);
+ bbbody[i + 1].iov_len = sizeof (grp->counts[0]);
+ }
+
+ /* Write each group of basic-block info (all basic-blocks in a
+ compilation unit form a single group). */
+
+ for (grp = __bb_head; grp; grp = grp->next)
+ {
+ ncounts = grp->ncounts;
+ writev (fd, bbhead, 2);
+ for (nfilled = i = 0; i < ncounts; ++i)
+ {
+ if (nfilled > (sizeof (bbbody) / sizeof (bbbody[0])) - 2)
+ {
+ writev (fd, bbbody, nfilled);
+ nfilled = 0;
+ }
+
+ bbbody[nfilled++].iov_base = (char *) &grp->addresses[i];
+ bbbody[nfilled++].iov_base = &grp->counts[i];
+ }
+ if (nfilled > 0)
+ writev (fd, bbbody, nfilled);
+ }
+}
+
+
+static void write_gmon (void)
+{
+ struct gmon_hdr ghdr __attribute__ ((aligned (__alignof__ (int))));
+ int fd = -1;
+ char *env;
+
+#ifndef O_NOFOLLOW
+# define O_NOFOLLOW 0
+#endif
+
+ env = getenv ("GMON_OUT_PREFIX");
+ if (env != NULL
+#if 0
+ && !__libc_enable_secure
+#endif
+ )
+ {
+ size_t len = strlen (env);
+ char buf[len + 20];
+ sprintf (buf, "%s.%u", env, getpid ());
+ fd = open (buf, O_CREAT|O_TRUNC|O_WRONLY|O_NOFOLLOW, 0666);
+ }
+
+ if (fd == -1)
+ {
+ fd = open ("gmon.out", O_CREAT|O_TRUNC|O_WRONLY|O_NOFOLLOW, 0666);
+ if (fd < 0)
+ {
+ char buf[300];
+ int errnum = errno;
+ fprintf (stderr, "_mcleanup: gmon.out: %s\n",
+ strerror_r (errnum, buf, sizeof buf));
+ return;
+ }
+ }
+
+ /* write gmon.out header: */
+ memset (&ghdr, '\0', sizeof (struct gmon_hdr));
+ memcpy (&ghdr.cookie[0], GMON_MAGIC, sizeof (ghdr.cookie));
+ *(int32_t *) ghdr.version = GMON_VERSION;
+ write (fd, &ghdr, sizeof (struct gmon_hdr));
+
+ /* write PC histogram: */
+ write_hist (fd);
+
+ /* write call-graph: */
+ write_call_graph (fd);
+
+ /* write basic-block execution counts: */
+ write_bb_counts (fd);
+
+ close (fd);
+}
+
+
+void write_profiling (void)
+{
+ int save = _gmonparam.state;
+ _gmonparam.state = GMON_PROF_OFF;
+ if (save == GMON_PROF_ON)
+ write_gmon ();
+ _gmonparam.state = save;
+}
+
+
+void _mcleanup (void)
+{
+ moncontrol (0);
+
+ if (_gmonparam.state != GMON_PROF_ERROR)
+ write_gmon ();
+
+ /* free the memory. */
+ if (_gmonparam.tos != NULL)
+ free (_gmonparam.tos);
+}
+
+#ifndef SIGPROF
+
+/* Enable statistical profiling, writing samples of the PC into at most
+ SIZE bytes of SAMPLE_BUFFER; every processor clock tick while profiling
+ is enabled, the system examines the user PC and increments
+ SAMPLE_BUFFER[((PC - OFFSET) / 2) * SCALE / 65536]. If SCALE is zero,
+ disable profiling. Returns zero on success, -1 on error. */
+
+int profil (u_short *sample_buffer, size_t size, size_t offset, u_int scale)
+{
+ if (scale == 0)
+ /* Disable profiling. */
+ return 0;
+
+ __set_errno (ENOSYS);
+ return -1;
+}
+
+#else
+
+static u_short *samples;
+static size_t nsamples;
+static size_t pc_offset;
+static u_int pc_scale;
+
+static inline void profil_count (void *pc)
+{
+ size_t i = (pc - pc_offset - (void *) 0) / 2;
+
+ if (sizeof (unsigned long long int) > sizeof (size_t))
+ i = (unsigned long long int) i * pc_scale / 65536;
+ else
+ i = i / 65536 * pc_scale + i % 65536 * pc_scale / 65536;
+
+ if (i < nsamples)
+ ++samples[i];
+}
+
+/* Get the machine-dependent definition of `profil_counter', the signal
+ handler for SIGPROF. It calls `profil_count' (above) with the PC of the
+ interrupted code. */
+#include <bits/profil-counter.h>
+
+/* Enable statistical profiling, writing samples of the PC into at most
+ SIZE bytes of SAMPLE_BUFFER; every processor clock tick while profiling
+ is enabled, the system examines the user PC and increments
+ SAMPLE_BUFFER[((PC - OFFSET) / 2) * SCALE / 65536]. If SCALE is zero,
+ disable profiling. Returns zero on success, -1 on error. */
+
+int profil (u_short *sample_buffer, size_t size, size_t offset, u_int scale)
+{
+ static struct sigaction oact;
+ static struct itimerval otimer;
+ struct sigaction act;
+ struct itimerval timer;
+
+ if (sample_buffer == NULL)
+ {
+ /* Disable profiling. */
+ if (samples == NULL)
+ /* Wasn't turned on. */
+ return 0;
+
+ if (setitimer (ITIMER_PROF, &otimer, NULL) < 0)
+ return -1;
+ samples = NULL;
+ return sigaction (SIGPROF, &oact, NULL);
+ }
+
+ if (samples)
+ {
+ /* Was already turned on. Restore old timer and signal handler
+ first. */
+ if (setitimer (ITIMER_PROF, &otimer, NULL) < 0
+ || sigaction (SIGPROF, &oact, NULL) < 0)
+ return -1;
+ }
+
+ samples = sample_buffer;
+ nsamples = size / sizeof *samples;
+ pc_offset = offset;
+ pc_scale = scale;
+
+ act.sa_handler = (__sighandler_t) &profil_counter;
+ act.sa_flags = SA_RESTART;
+ __sigfillset (&act.sa_mask);
+ if (sigaction (SIGPROF, &act, &oact) < 0)
+ return -1;
+
+ timer.it_value.tv_sec = 0;
+ timer.it_value.tv_usec = 1;
+ timer.it_interval = timer.it_value;
+ return setitimer (ITIMER_PROF, &timer, &otimer);
+}
+
+#endif
+
+
+/* This file provides the machine-dependent definitions of the _MCOUNT_DECL
+ and MCOUNT macros. */
+#include <bits/machine-gmon.h>
+#include <bits/atomicity.h>
+
+/*
+ * mcount is called on entry to each function compiled with the profiling
+ * switch set. _mcount(), which is declared in a machine-dependent way
+ * with _MCOUNT_DECL, does the actual work and is either inlined into a
+ * C routine or called by an assembly stub. In any case, this magic is
+ * taken care of by the MCOUNT definition in <machine/profile.h>.
+ *
+ * _mcount updates data structures that represent traversals of the
+ * program's call graph edges. frompc and selfpc are the return
+ * address and function address that represents the given call graph edge.
+ *
+ * Note: the original BSD code used the same variable (frompcindex) for
+ * both frompcindex and frompc. Any reasonable, modern compiler will
+ * perform this optimization.
+ */
+_MCOUNT_DECL(frompc, selfpc) /* _mcount; may be static, inline, etc */
+{
+ register ARCINDEX *frompcindex;
+ register struct tostruct *top, *prevtop;
+ register struct gmonparam *p;
+ register ARCINDEX toindex;
+ int i;
+
+ p = &_gmonparam;
+ /*
+ * check that we are profiling
+ * and that we aren't recursively invoked.
+ */
+ if (! compare_and_swap (&p->state, GMON_PROF_ON, GMON_PROF_BUSY))
+ return;
+
+ /*
+ * check that frompcindex is a reasonable pc value.
+ * for example: signal catchers get called from the stack,
+ * not from text space. too bad.
+ */
+ frompc -= p->lowpc;
+ if (frompc > p->textsize)
+ goto done;
+
+ /* The following test used to be
+ if (p->log_hashfraction >= 0)
+ But we can simplify this if we assume the profiling data
+ is always initialized by the functions in gmon.c. But
+ then it is possible to avoid a runtime check and use the
+ smae `if' as in gmon.c. So keep these tests in sync. */
+ if ((HASHFRACTION & (HASHFRACTION - 1)) == 0) {
+ /* avoid integer divide if possible: */
+ i = frompc >> p->log_hashfraction;
+ } else {
+ i = frompc / (p->hashfraction * sizeof(*p->froms));
+ }
+ frompcindex = &p->froms[i];
+ toindex = *frompcindex;
+ if (toindex == 0) {
+ /*
+ * first time traversing this arc
+ */
+ toindex = ++p->tos[0].link;
+ if (toindex >= p->tolimit)
+ /* halt further profiling */
+ goto overflow;
+
+ *frompcindex = toindex;
+ top = &p->tos[toindex];
+ top->selfpc = selfpc;
+ top->count = 1;
+ top->link = 0;
+ goto done;
+ }
+ top = &p->tos[toindex];
+ if (top->selfpc == selfpc) {
+ /*
+ * arc at front of chain; usual case.
+ */
+ top->count++;
+ goto done;
+ }
+ /*
+ * have to go looking down chain for it.
+ * top points to what we are looking at,
+ * prevtop points to previous top.
+ * we know it is not at the head of the chain.
+ */
+ for (; /* goto done */; ) {
+ if (top->link == 0) {
+ /*
+ * top is end of the chain and none of the chain
+ * had top->selfpc == selfpc.
+ * so we allocate a new tostruct
+ * and link it to the head of the chain.
+ */
+ toindex = ++p->tos[0].link;
+ if (toindex >= p->tolimit)
+ goto overflow;
+
+ top = &p->tos[toindex];
+ top->selfpc = selfpc;
+ top->count = 1;
+ top->link = *frompcindex;
+ *frompcindex = toindex;
+ goto done;
+ }
+ /*
+ * otherwise, check the next arc on the chain.
+ */
+ prevtop = top;
+ top = &p->tos[top->link];
+ if (top->selfpc == selfpc) {
+ /*
+ * there it is.
+ * increment its count
+ * move it to the head of the chain.
+ */
+ top->count++;
+ toindex = prevtop->link;
+ prevtop->link = top->link;
+ top->link = *frompcindex;
+ *frompcindex = toindex;
+ goto done;
+ }
+
+ }
+done:
+ p->state = GMON_PROF_ON;
+ return;
+overflow:
+ p->state = GMON_PROF_ERROR;
+ return;
+}
+
+/*
+ * Actual definition of mcount function. Defined in <machine/profile.h>,
+ * which is included by <sys/gmon.h>.
+ */
+MCOUNT
+
+#endif
+
diff --git a/libc/sysdeps/linux/common/initfini.c b/libc/sysdeps/linux/common/initfini.c
index 64fdf6eb4..ba4d68fc9 100644
--- a/libc/sysdeps/linux/common/initfini.c
+++ b/libc/sysdeps/linux/common/initfini.c
@@ -38,7 +38,6 @@
#include <features.h>
-#undef GMON_SUPPORT
/* We use embedded asm for .section unconditionally, as this makes it
easier to insert the necessary directives into crtn.S. */
@@ -87,6 +86,7 @@ dummy (void (*foo) (void))
asm ("\n/*@_init_PROLOG_BEGINS*/");
#ifdef GMON_SUPPORT
+asm ("\n/*@_init_GMON_STUFF_BEGINS*/");
static void
call_gmon_start(void)
{
@@ -96,6 +96,7 @@ call_gmon_start(void)
if (gmon_start)
gmon_start ();
}
+asm ("\n/*@_init_GMON_STUFF_PAUSES*/");
#endif
SECTION (".init")
@@ -106,6 +107,7 @@ extern void _init (void);
void _init (void)
{
#ifdef GMON_SUPPORT
+asm ("\n/*@_init_GMON_STUFF_UNPAUSES*/");
/* We cannot use the normal constructor mechanism in gcrt1.o because it
appears before crtbegin.o in the link, so the header elt of .ctors
would come after the elt for __gmon_start__. One approach is for
@@ -113,6 +115,7 @@ void _init (void)
module which has a constructor; but then user code's constructors
would come first, and not be profiled. */
call_gmon_start ();
+asm ("\n/*@_init_GMON_STUFF_ENDS*/");
#else
asm ("\n/*@_init_PROLOG_PAUSES*/");
{
diff --git a/libc/sysdeps/linux/cris/bits/machine-gmon.h b/libc/sysdeps/linux/cris/bits/machine-gmon.h
new file mode 100644
index 000000000..2f36a34d6
--- /dev/null
+++ b/libc/sysdeps/linux/cris/bits/machine-gmon.h
@@ -0,0 +1,28 @@
+/* PowerPC-specific implementation of profiling support.
+ Copyright (C) 1997, 2001 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. */
+
+void __mcount_internal (unsigned long frompc, unsigned long selfpc);
+
+#define _MCOUNT_DECL(frompc, selfpc) \
+void __mcount_internal (unsigned long frompc, unsigned long selfpc)
+
+
+/* Define MCOUNT as empty since we have the implementation in another
+ file. FIXME: Just stubs, currently. */
+#define MCOUNT
diff --git a/libc/sysdeps/linux/cris/bits/profil-counter.h b/libc/sysdeps/linux/cris/bits/profil-counter.h
new file mode 100644
index 000000000..37adc1fee
--- /dev/null
+++ b/libc/sysdeps/linux/cris/bits/profil-counter.h
@@ -0,0 +1,26 @@
+/* Low-level statistical profiling support function. Linux/CRIS version.
+ Copyright (C) 2001 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. */
+
+#include <signal.h>
+
+static void
+profil_counter (int signo, struct sigcontext *scp)
+{
+ profil_count ((void *) scp->regs.irp);
+}
diff --git a/libc/sysdeps/linux/cris/bits/stackinfo.h b/libc/sysdeps/linux/cris/bits/stackinfo.h
new file mode 100644
index 000000000..43c944834
--- /dev/null
+++ b/libc/sysdeps/linux/cris/bits/stackinfo.h
@@ -0,0 +1,28 @@
+/* Copyright (C) 2002 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. */
+
+/* This file contains a bit of information about the stack allocation
+ of the processor. */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H 1
+
+/* On cris the stack grows down. */
+#define _STACK_GROWS_DOWN 1
+
+#endif /* stackinfo.h */
diff --git a/libc/sysdeps/linux/i386/Makefile b/libc/sysdeps/linux/i386/Makefile
index 9ca790cff..c7e1db947 100644
--- a/libc/sysdeps/linux/i386/Makefile
+++ b/libc/sysdeps/linux/i386/Makefile
@@ -21,10 +21,14 @@ include $(TOPDIR)Rules.mak
ASFLAGS=$(CFLAGS)
CRT0_SRC = crt0.S
-CRT0_OBJ = crt0.o crt1.o
+CRT0_OBJ = crt0.o crt1.o gcrt1.o
+CRT0_DEPS=gmon-start.S
SSRC=__longjmp.S vfork.S clone.S setjmp.S bsd-setjmp.S \
bsd-_setjmp.S syscall.S
+ifeq ($(strip $(UCLIBC_PROFILING)),y)
+SSRC+=mcount.S
+endif
SOBJS=$(patsubst %.S,%.o, $(SSRC))
CSRC=brk.c sigaction.c
@@ -53,6 +57,13 @@ $(COBJS): %.o : %.c
$(CC) $(CFLAGS) -c $< -o $@
$(STRIPTOOL) -x -R .note -R .comment $*.o
+ifeq ($(strip $(UCLIBC_PROFILING)),y)
+SAFECFLAGS := $(subst -g,,$(CFLAGS))
+gmon-start.S: ../common/gmon-start.c
+ $(CC) $(SAFECFLAGS) -c $< -S -o $*.S
+gcrt1.o: $(CRT0_DEPS)
+endif
+
headers:
diff --git a/libc/sysdeps/linux/i386/bits/atomicity.h b/libc/sysdeps/linux/i386/bits/atomicity.h
new file mode 100644
index 000000000..df2fb8184
--- /dev/null
+++ b/libc/sysdeps/linux/i386/bits/atomicity.h
@@ -0,0 +1,57 @@
+/* Low-level functions for atomic operations. ix86 version, x >= 4.
+ Copyright (C) 1997, 2000, 2001 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. */
+
+#ifndef _ATOMICITY_H
+#define _ATOMICITY_H 1
+
+#include <inttypes.h>
+
+
+static inline uint32_t
+__attribute__ ((unused))
+exchange_and_add (volatile uint32_t *mem, uint32_t val)
+{
+ register uint32_t result;
+ __asm__ __volatile__ ("lock; xaddl %0,%1"
+ : "=r" (result), "=m" (*mem) : "0" (val), "1" (*mem));
+ return result;
+}
+
+static inline void
+__attribute__ ((unused))
+atomic_add (volatile uint32_t *mem, int val)
+{
+ __asm__ __volatile__ ("lock; addl %1,%0"
+ : "=m" (*mem) : "ir" (val), "0" (*mem));
+}
+
+static inline char
+__attribute__ ((unused))
+compare_and_swap (volatile long int *p, long int oldval, long int newval)
+{
+ char ret;
+ long int readval;
+
+ __asm__ __volatile__ ("lock; cmpxchgl %3, %1; sete %0"
+ : "=q" (ret), "=m" (*p), "=a" (readval)
+ : "r" (newval), "1" (*p), "a" (oldval));
+ return ret;
+}
+
+#endif /* atomicity.h */
diff --git a/libc/sysdeps/linux/i386/bits/machine-gmon.h b/libc/sysdeps/linux/i386/bits/machine-gmon.h
new file mode 100644
index 000000000..6c860bc01
--- /dev/null
+++ b/libc/sysdeps/linux/i386/bits/machine-gmon.h
@@ -0,0 +1,41 @@
+/* i386-specific implementation of profiling support.
+ Copyright (C) 1997, 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+ 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. */
+
+#include <sysdep.h>
+
+/* We need a special version of the `mcount' function since for ix86 it
+ must not clobber any register. This has several reasons:
+ - there is a bug in gcc as of version 2.7.2.2 which prohibits the
+ use of profiling together with nested functions
+ - the ELF `fixup' function uses GCC's regparm feature
+ - some (future) systems might want to pass parameters in registers. */
+
+/* We must not pollute the global namespace. */
+#define mcount_internal __mcount_internal
+
+extern void mcount_internal (u_long frompc, u_long selfpc);
+
+#define _MCOUNT_DECL(frompc, selfpc) \
+void mcount_internal (u_long frompc, u_long selfpc)
+
+
+/* Define MCOUNT as empty since we have the implementation in another
+ file. */
+#define MCOUNT
diff --git a/libc/sysdeps/linux/i386/bits/profil-counter.h b/libc/sysdeps/linux/i386/bits/profil-counter.h
new file mode 100644
index 000000000..80933a36f
--- /dev/null
+++ b/libc/sysdeps/linux/i386/bits/profil-counter.h
@@ -0,0 +1,27 @@
+/* Low-level statistical profiling support function. Linux/i386 version.
+ Copyright (C) 1996, 1997, 1998 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. */
+
+#include <signal.h>
+#include <bits/sigcontextinfo.h>
+
+static void
+profil_counter (int signo, SIGCONTEXT scp)
+{
+ profil_count ((void *) GET_PC (scp));
+}
diff --git a/libc/sysdeps/linux/i386/bits/sigcontextinfo.h b/libc/sysdeps/linux/i386/bits/sigcontextinfo.h
new file mode 100644
index 000000000..6530ba6f3
--- /dev/null
+++ b/libc/sysdeps/linux/i386/bits/sigcontextinfo.h
@@ -0,0 +1,51 @@
+/* Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
+
+ 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. */
+
+#define SIGCONTEXT struct sigcontext
+#define SIGCONTEXT_EXTRA_ARGS
+#define GET_PC(ctx) ((void *) ctx.eip)
+#define GET_FRAME(ctx) ((void *) ctx.ebp)
+#define GET_STACK(ctx) ((void *) ctx.esp_at_signal)
+#define CALL_SIGHANDLER(handler, signo, ctx) \
+do { \
+ int __tmp1, __tmp2, __tmp3, __tmp4; \
+ __asm __volatile ("movl\t%%esp, %%edi\n\t" \
+ "andl\t$-16, %%esp\n\t" \
+ "subl\t%8, %%esp\n\t" \
+ "movl\t%%edi, %c8-4(%%esp)\n\t" \
+ "movl\t%1, 0(%%esp)\n\t" \
+ "leal\t4(%%esp), %%edi\n\t" \
+ "cld\n\t" \
+ "rep\tmovsl\n\t" \
+ "call\t*%0\n\t" \
+ "cld\n\t" \
+ "movl\t%9, %%ecx\n\t" \
+ "subl\t%%edi, %%esi\n\t" \
+ "leal\t4(%%esp,%%esi,1), %%edi\n\t" \
+ "leal\t4(%%esp), %%esi\n\t" \
+ "rep\tmovsl\n\t" \
+ "movl\t%c8-4(%%esp), %%esp\n\t" \
+ : "=a" (__tmp1), "=d" (__tmp2), "=S" (__tmp3), \
+ "=c" (__tmp4) \
+ : "0" (handler), "1" (signo), "2" (&ctx), \
+ "3" (sizeof (struct sigcontext) / 4), \
+ "n" ((sizeof (struct sigcontext) + 19) & ~15), \
+ "i" (sizeof (struct sigcontext) / 4) \
+ : "cc", "edi"); \
+} while (0)
diff --git a/libc/sysdeps/linux/i386/bits/stackinfo.h b/libc/sysdeps/linux/i386/bits/stackinfo.h
new file mode 100644
index 000000000..a9a6745aa
--- /dev/null
+++ b/libc/sysdeps/linux/i386/bits/stackinfo.h
@@ -0,0 +1,28 @@
+/* Copyright (C) 1999 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. */
+
+/* This file contains a bit of information about the stack allocation
+ of the processor. */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H 1
+
+/* On x86 the stack grows down. */
+#define _STACK_GROWS_DOWN 1
+
+#endif /* stackinfo.h */
diff --git a/libc/sysdeps/linux/i386/crt0.S b/libc/sysdeps/linux/i386/crt0.S
index e871c0876..3930a1690 100644
--- a/libc/sysdeps/linux/i386/crt0.S
+++ b/libc/sysdeps/linux/i386/crt0.S
@@ -74,7 +74,7 @@ _start:
pushl %ebp /* callers %ebp (frame pointer) */
movl %esp,%ebp /* mark callers stack frame as invalid */
-#if defined L_crt1 && defined __UCLIBC_CTOR_DTOR__
+#if (defined L_crt1 || defined L_gcrt1 ) && defined __UCLIBC_CTOR_DTOR__
/* Push .init and .fini arguments to __uClibc_start_main() on the stack */
pushl $_fini
pushl $_init
@@ -99,3 +99,8 @@ _start:
hlt
.size _start,.-_start
+
+#if defined L_gcrt1
+# include "./gmon-start.S"
+#endif
+
diff --git a/libc/sysdeps/linux/i386/mcount.S b/libc/sysdeps/linux/i386/mcount.S
new file mode 100644
index 000000000..704a7b851
--- /dev/null
+++ b/libc/sysdeps/linux/i386/mcount.S
@@ -0,0 +1,54 @@
+/* i386-specific implemetation of profiling support.
+ Copyright (C) 1997, 2002 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
+
+ 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. */
+
+
+/* We need a special version of the `mcount' function since for ix86 it
+ must not clobber any register. This has several reasons:
+ - there is a bug in gcc as of version 2.7.2.2 which prohibits the
+ use of profiling together with nested functions
+ - the ELF `fixup' function uses GCC's regparm feature
+ - some (future) systems might want to pass parameters in registers. */
+
+ .globl _mcount
+ .type _mcount,@function;
+ .align 1<<4
+_mcount:
+ /* Save the caller-clobbered registers. */
+ pushl %eax
+ pushl %ecx
+ pushl %edx
+
+ movl 12(%esp), %edx
+ movl 4(%ebp), %eax
+
+ /* No need to access the PLT or GOT, __mcount_internal is an
+ internal function and we can make a relative call. */
+ call __mcount_internal
+
+ /* Pop the saved registers. Please note that `mcount' has no
+ return value. */
+ popl %edx
+ popl %ecx
+ popl %eax
+ ret
+ .size _mcount,.-_mcount;
+
+#undef mcount
+.weak mcount ; mcount = _mcount
diff --git a/libc/sysdeps/linux/m68k/bits/atomicity.h b/libc/sysdeps/linux/m68k/bits/atomicity.h
new file mode 100644
index 000000000..464948086
--- /dev/null
+++ b/libc/sysdeps/linux/m68k/bits/atomicity.h
@@ -0,0 +1,64 @@
+/* Low-level functions for atomic operations. m680x0 version, x >= 2.
+ Copyright (C) 1997 Free Software Foundation, Inc.
+ Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>.
+ 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. */
+
+#ifndef _ATOMICITY_H
+#define _ATOMICITY_H 1
+
+#include <inttypes.h>
+
+
+static inline int
+__attribute__ ((unused))
+exchange_and_add (volatile uint32_t *mem, int val)
+{
+ register int result = *mem;
+ register int temp;
+ __asm__ __volatile__ ("1: move%.l %0,%1;"
+ " add%.l %2,%1;"
+ " cas%.l %0,%1,%3;"
+ " jbne 1b"
+ : "=d" (result), "=&d" (temp)
+ : "d" (val), "m" (*mem), "0" (result) : "memory");
+ return result;
+}
+
+static inline void
+__attribute__ ((unused))
+atomic_add (volatile uint32_t *mem, int val)
+{
+ /* XXX Use cas here as well? */
+ __asm__ __volatile__ ("add%.l %0,%1"
+ : : "id" (val), "m" (*mem) : "memory");
+}
+
+static inline int
+__attribute__ ((unused))
+compare_and_swap (volatile long int *p, long int oldval, long int newval)
+{
+ char ret;
+ long int readval;
+
+ __asm__ __volatile__ ("cas%.l %2,%3,%1; seq %0"
+ : "=dm" (ret), "=m" (*p), "=d" (readval)
+ : "d" (newval), "m" (*p), "2" (oldval));
+ return ret;
+}
+
+#endif /* atomicity.h */
diff --git a/libc/sysdeps/linux/m68k/bits/sigcontextinfo.h b/libc/sysdeps/linux/m68k/bits/sigcontextinfo.h
new file mode 100644
index 000000000..b7e08cfc9
--- /dev/null
+++ b/libc/sysdeps/linux/m68k/bits/sigcontextinfo.h
@@ -0,0 +1,26 @@
+/* Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>, 1998.
+
+ 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. */
+
+#define SIGCONTEXT int _code, struct sigcontext *
+#define SIGCONTEXT_EXTRA_ARGS _code,
+#define GET_PC(ctx) ((void *) (ctx)->sc_pc)
+#define GET_FRAME(ctx) ((void *) __builtin_frame_address (1))
+#define GET_STACK(ctx) ((void *) (ctx)->sc_usp)
+#define CALL_SIGHANDLER(handler, signo, ctx) \
+ (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))
diff --git a/libc/sysdeps/linux/m68k/bits/stackinfo.h b/libc/sysdeps/linux/m68k/bits/stackinfo.h
new file mode 100644
index 000000000..66e5a17fb
--- /dev/null
+++ b/libc/sysdeps/linux/m68k/bits/stackinfo.h
@@ -0,0 +1,28 @@
+/* Copyright (C) 1999 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. */
+
+/* This file contains a bit of information about the stack allocation
+ of the processor. */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H 1
+
+/* On m68k the stack grows down. */
+#define _STACK_GROWS_DOWN 1
+
+#endif /* stackinfo.h */
diff --git a/libc/sysdeps/linux/mips/bits/atomicity.h b/libc/sysdeps/linux/mips/bits/atomicity.h
new file mode 100644
index 000000000..bccacd9c9
--- /dev/null
+++ b/libc/sysdeps/linux/mips/bits/atomicity.h
@@ -0,0 +1,98 @@
+/* Low-level functions for atomic operations. Mips version.
+ Copyright (C) 2001, 2002 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. */
+
+#ifndef _MIPS_ATOMICITY_H
+#define _MIPS_ATOMICITY_H 1
+
+#include <inttypes.h>
+
+static inline int
+__attribute__ ((unused))
+exchange_and_add (volatile uint32_t *mem, int val)
+{
+ int result, tmp;
+
+ __asm__ __volatile__
+ ("/* Inline exchange & add */\n"
+ "1:\n\t"
+ ".set push\n\t"
+ ".set mips2\n\t"
+ "ll %0,%3\n\t"
+ "addu %1,%4,%0\n\t"
+ "sc %1,%2\n\t"
+ ".set pop\n\t"
+ "beqz %1,1b\n\t"
+ "/* End exchange & add */"
+ : "=&r"(result), "=&r"(tmp), "=m"(*mem)
+ : "m" (*mem), "r"(val)
+ : "memory");
+
+ return result;
+}
+
+static inline void
+__attribute__ ((unused))
+atomic_add (volatile uint32_t *mem, int val)
+{
+ int result;
+
+ __asm__ __volatile__
+ ("/* Inline atomic add */\n"
+ "1:\n\t"
+ ".set push\n\t"
+ ".set mips2\n\t"
+ "ll %0,%2\n\t"
+ "addu %0,%3,%0\n\t"
+ "sc %0,%1\n\t"
+ ".set pop\n\t"
+ "beqz %0,1b\n\t"
+ "/* End atomic add */"
+ : "=&r"(result), "=m"(*mem)
+ : "m" (*mem), "r"(val)
+ : "memory");
+}
+
+static inline int
+__attribute__ ((unused))
+compare_and_swap (volatile long int *p, long int oldval, long int newval)
+{
+ long int ret, temp;
+
+ __asm__ __volatile__
+ ("/* Inline compare & swap */\n"
+ "1:\n\t"
+ ".set push\n\t"
+ ".set mips2\n\t"
+ "ll %1,%5\n\t"
+ "move %0,$0\n\t"
+ "bne %1,%3,2f\n\t"
+ "move %0,%4\n\t"
+ "sc %0,%2\n\t"
+ ".set pop\n\t"
+ "beqz %0,1b\n"
+ "2:\n\t"
+ "/* End compare & swap */"
+ : "=&r" (ret), "=&r" (temp), "=m" (*p)
+ : "r" (oldval), "r" (newval), "m" (*p)
+ : "memory");
+
+ return ret;
+}
+
+#endif /* atomicity.h */
diff --git a/libc/sysdeps/linux/mips/bits/machine-gmon.h b/libc/sysdeps/linux/mips/bits/machine-gmon.h
new file mode 100644
index 000000000..102da2c36
--- /dev/null
+++ b/libc/sysdeps/linux/mips/bits/machine-gmon.h
@@ -0,0 +1,68 @@
+/* Machine-specific calling sequence for `mcount' profiling function. MIPS
+ Copyright (C) 1996, 1997, 2000, 2001, 2002 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. */
+
+#define _MCOUNT_DECL(frompc,selfpc) \
+static void __attribute_used__ __mcount (u_long frompc, u_long selfpc)
+
+/* Call __mcount with our the return PC for our caller,
+ and the return PC our caller will return to. */
+#ifdef __PIC__
+#define CPLOAD ".cpload $25;"
+#define CPRESTORE ".cprestore 44\n\t"
+#else
+#define CPLOAD
+#define CPRESTORE
+#endif
+
+#define MCOUNT asm(\
+ ".globl _mcount;\n\t" \
+ ".align 2;\n\t" \
+ ".type _mcount,@function;\n\t" \
+ ".ent _mcount\n\t" \
+ "_mcount:\n\t" \
+ ".frame $sp,44,$31\n\t" \
+ ".set noreorder;\n\t" \
+ ".set noat;\n\t" \
+ CPLOAD \
+ "subu $29,$29,48;\n\t" \
+ CPRESTORE \
+ "sw $4,24($29);\n\t" \
+ "sw $5,28($29);\n\t" \
+ "sw $6,32($29);\n\t" \
+ "sw $7,36($29);\n\t" \
+ "sw $2,40($29);\n\t" \
+ "sw $1,16($29);\n\t" \
+ "sw $31,20($29);\n\t" \
+ "move $5,$31;\n\t" \
+ "move $4,$1;\n\t" \
+ "jal __mcount;\n\t" \
+ "nop;\n\t" \
+ "lw $4,24($29);\n\t" \
+ "lw $5,28($29);\n\t" \
+ "lw $6,32($29);\n\t" \
+ "lw $7,36($29);\n\t" \
+ "lw $2,40($29);\n\t" \
+ "lw $31,20($29);\n\t" \
+ "lw $1,16($29);\n\t" \
+ "addu $29,$29,56;\n\t" \
+ "j $31;\n\t" \
+ "move $31,$1;\n\t" \
+ ".set reorder;\n\t" \
+ ".set at\n\t" \
+ ".end _mcount");
diff --git a/libc/sysdeps/linux/mips/bits/sigcontextinfo.h b/libc/sysdeps/linux/mips/bits/sigcontextinfo.h
new file mode 100644
index 000000000..a51c6f043
--- /dev/null
+++ b/libc/sysdeps/linux/mips/bits/sigcontextinfo.h
@@ -0,0 +1,27 @@
+/* Copyright (C) 2000, 2001 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Andreas Jaeger <aj@suse.de>, 2000.
+
+ 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. */
+
+
+#define SIGCONTEXT unsigned long _code, struct sigcontext *
+#define SIGCONTEXT_EXTRA_ARGS _code,
+#define GET_PC(ctx) ((void *) ctx->sc_pc)
+#define GET_FRAME(ctx) ((void *) ctx->sc_regs[30])
+#define GET_STACK(ctx) ((void *) ctx->sc_regs[29])
+#define CALL_SIGHANDLER(handler, signo, ctx) \
+ (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))
diff --git a/libc/sysdeps/linux/mips/bits/stackinfo.h b/libc/sysdeps/linux/mips/bits/stackinfo.h
new file mode 100644
index 000000000..86e3d621b
--- /dev/null
+++ b/libc/sysdeps/linux/mips/bits/stackinfo.h
@@ -0,0 +1,28 @@
+/* Copyright (C) 2000 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. */
+
+/* This file contains a bit of information about the stack allocation
+ of the processor. */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H 1
+
+/* On MIPS the stack grows down. */
+#define _STACK_GROWS_DOWN 1
+
+#endif /* stackinfo.h */
diff --git a/libc/sysdeps/linux/powerpc/bits/atomicity.h b/libc/sysdeps/linux/powerpc/bits/atomicity.h
new file mode 100644
index 000000000..a3f672e5e
--- /dev/null
+++ b/libc/sysdeps/linux/powerpc/bits/atomicity.h
@@ -0,0 +1,104 @@
+/* Low-level functions for atomic operations. PowerPC version.
+ Copyright (C) 1997, 1998, 1999, 2000 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. */
+
+#ifndef _ATOMICITY_H
+#define _ATOMICITY_H 1
+
+#include <inttypes.h>
+
+#if BROKEN_PPC_ASM_CR0
+# define __ATOMICITY_INLINE /* nothing */
+#else
+# define __ATOMICITY_INLINE inline
+#endif
+
+static __ATOMICITY_INLINE int
+__attribute__ ((unused))
+exchange_and_add (volatile uint32_t *mem, int val)
+{
+ int tmp, result;
+ __asm__ ("\n\
+0: lwarx %0,0,%2 \n\
+ add%I3 %1,%0,%3 \n\
+ stwcx. %1,0,%2 \n\
+ bne- 0b \n\
+" : "=&b"(result), "=&r"(tmp) : "r" (mem), "Ir"(val) : "cr0", "memory");
+ return result;
+}
+
+static __ATOMICITY_INLINE void
+__attribute__ ((unused))
+atomic_add (volatile uint32_t *mem, int val)
+{
+ int tmp;
+ __asm__ ("\n\
+0: lwarx %0,0,%1 \n\
+ add%I2 %0,%0,%2 \n\
+ stwcx. %0,0,%1 \n\
+ bne- 0b \n\
+" : "=&b"(tmp) : "r" (mem), "Ir"(val) : "cr0", "memory");
+}
+
+static __ATOMICITY_INLINE int
+__attribute__ ((unused))
+compare_and_swap (volatile long int *p, long int oldval, long int newval)
+{
+ int result;
+ __asm__ ("\n\
+0: lwarx %0,0,%1 \n\
+ sub%I2c. %0,%0,%2 \n\
+ cntlzw %0,%0 \n\
+ bne- 1f \n\
+ stwcx. %3,0,%1 \n\
+ bne- 0b \n\
+1: \n\
+" : "=&b"(result) : "r"(p), "Ir"(oldval), "r"(newval) : "cr0", "memory");
+ return result >> 5;
+}
+
+static __ATOMICITY_INLINE long int
+__attribute__ ((unused))
+always_swap (volatile long int *p, long int newval)
+{
+ long int result;
+ __asm__ ("\n\
+0: lwarx %0,0,%1 \n\
+ stwcx. %2,0,%1 \n\
+ bne- 0b \n\
+" : "=&r"(result) : "r"(p), "r"(newval) : "cr0", "memory");
+ return result;
+}
+
+static __ATOMICITY_INLINE int
+__attribute__ ((unused))
+test_and_set (volatile long int *p, long int newval)
+{
+ int result;
+ __asm__ ("\n\
+0: lwarx %0,0,%1 \n\
+ cmpwi %0,0 \n\
+ bne- 1f \n\
+ stwcx. %2,0,%1 \n\
+ bne- 0b \n\
+1: \n\
+" : "=&r"(result) : "r"(p), "r"(newval) : "cr0", "memory");
+ return result;
+}
+
+#endif /* atomicity.h */
diff --git a/libc/sysdeps/linux/powerpc/bits/machine-gmon.h b/libc/sysdeps/linux/powerpc/bits/machine-gmon.h
new file mode 100644
index 000000000..b0f3d8130
--- /dev/null
+++ b/libc/sysdeps/linux/powerpc/bits/machine-gmon.h
@@ -0,0 +1,31 @@
+/* PowerPC-specific implementation of profiling support.
+ Copyright (C) 1997 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. */
+
+/* We need a special version of the `mcount' function because it has
+ to preserve more registers than your usual function. */
+
+void __mcount_internal (unsigned long frompc, unsigned long selfpc);
+
+#define _MCOUNT_DECL(frompc, selfpc) \
+void __mcount_internal (unsigned long frompc, unsigned long selfpc)
+
+
+/* Define MCOUNT as empty since we have the implementation in another
+ file. */
+#define MCOUNT
diff --git a/libc/sysdeps/linux/powerpc/bits/profil-counter.h b/libc/sysdeps/linux/powerpc/bits/profil-counter.h
new file mode 100644
index 000000000..6ce7eab01
--- /dev/null
+++ b/libc/sysdeps/linux/powerpc/bits/profil-counter.h
@@ -0,0 +1,28 @@
+/* Low-level statistical profiling support function. Linux/ipowerpc version.
+ Copyright (C) 1996, 1997, 1998 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. */
+
+#include <signal.h>
+#include <bits/sigcontextinfo.h>
+
+static void
+profil_counter (int signo, SIGCONTEXT scp)
+{
+ profil_count ((void *) GET_PC (scp));
+}
+
diff --git a/libc/sysdeps/linux/powerpc/bits/sigcontextinfo.h b/libc/sysdeps/linux/powerpc/bits/sigcontextinfo.h
new file mode 100644
index 000000000..138a15cfa
--- /dev/null
+++ b/libc/sysdeps/linux/powerpc/bits/sigcontextinfo.h
@@ -0,0 +1,27 @@
+/* Copyright (C) 1998, 1999, 2001 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. */
+
+#include <signal.h>
+
+#define SIGCONTEXT struct sigcontext *
+#define SIGCONTEXT_EXTRA_ARGS
+#define GET_PC(ctx) ((void *)((ctx)->regs->nip))
+#define GET_FRAME(ctx) (*(void **)((ctx)->regs->gpr[1]))
+#define GET_STACK(ctx) ((void *)((ctx)->regs->gpr[1]))
+#define CALL_SIGHANDLER(handler, signo, ctx) \
+ (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))
diff --git a/libc/sysdeps/linux/powerpc/bits/stackinfo.h b/libc/sysdeps/linux/powerpc/bits/stackinfo.h
new file mode 100644
index 000000000..839758a4e
--- /dev/null
+++ b/libc/sysdeps/linux/powerpc/bits/stackinfo.h
@@ -0,0 +1,28 @@
+/* Copyright (C) 1999 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. */
+
+/* This file contains a bit of information about the stack allocation
+ of the processor. */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H 1
+
+/* On PPC the stack grows down. */
+#define _STACK_GROWS_DOWN 1
+
+#endif /* stackinfo.h */
diff --git a/libc/sysdeps/linux/sh/bits/machine-gmon.h b/libc/sysdeps/linux/sh/bits/machine-gmon.h
new file mode 100644
index 000000000..46c7b191a
--- /dev/null
+++ b/libc/sysdeps/linux/sh/bits/machine-gmon.h
@@ -0,0 +1,32 @@
+/* Machine-dependent definitions for profiling support. SH version.
+ Copyright (C) 1996, 1997, 1998, 2000 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. */
+
+/* We must not pollute the global namespace. */
+#define mcount_internal __mcount_internal
+
+void mcount_internal (u_long frompc, u_long selfpc);
+
+#define _MCOUNT_DECL(frompc, selfpc) \
+void mcount_internal (u_long frompc, u_long selfpc)
+
+
+/* Define MCOUNT as empty since we have the implementation in another
+ file. */
+#define MCOUNT
+
diff --git a/libc/sysdeps/linux/sh/bits/profil-counter.h b/libc/sysdeps/linux/sh/bits/profil-counter.h
new file mode 100644
index 000000000..fe1df15ad
--- /dev/null
+++ b/libc/sysdeps/linux/sh/bits/profil-counter.h
@@ -0,0 +1,28 @@
+/* Low-level statistical profiling support function. Linux/SH version.
+ Copyright (C) 1996, 1997, 1998, 2000 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. */
+
+#include <signal.h>
+
+static void
+profil_counter (int signo, int _a2, int _a3, int _a4, struct sigcontext sc)
+{
+ void *pc;
+ pc = (void *) sc.sc_pc;
+ profil_count (pc);
+}
diff --git a/libc/sysdeps/linux/sh/bits/sigcontextinfo.h b/libc/sysdeps/linux/sh/bits/sigcontextinfo.h
new file mode 100644
index 000000000..3e1f3e949
--- /dev/null
+++ b/libc/sysdeps/linux/sh/bits/sigcontextinfo.h
@@ -0,0 +1,27 @@
+/* Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Philip Blundell <philb@gnu.org>, 1999.
+
+ 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. */
+
+#define SIGCONTEXT int _a2, int _a3, int _a4, struct sigcontext
+
+#define SIGCONTEXT_EXTRA_ARGS _a2, _a3, _a4,
+#define GET_PC(ctx) ((void *) ctx.sc_pc)
+#define GET_FRAME(ctx) ((void *) ctx.sc_regs[14])
+#define GET_STACK(ctx) ((void *) ctx.sc_regs[15])
+#define CALL_SIGHANDLER(handler, signo, ctx) \
+ (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))
diff --git a/libc/sysdeps/linux/sh/bits/stackinfo.h b/libc/sysdeps/linux/sh/bits/stackinfo.h
new file mode 100644
index 000000000..e65338f25
--- /dev/null
+++ b/libc/sysdeps/linux/sh/bits/stackinfo.h
@@ -0,0 +1,28 @@
+/* Copyright (C) 2001 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. */
+
+/* This file contains a bit of information about the stack allocation
+ of the processor. */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H 1
+
+/* On SH the stack grows down. */
+#define _STACK_GROWS_DOWN 1
+
+#endif /* stackinfo.h */
diff --git a/libc/sysdeps/linux/sparc/bits/atomicity.h b/libc/sysdeps/linux/sparc/bits/atomicity.h
new file mode 100644
index 000000000..ec82541c2
--- /dev/null
+++ b/libc/sysdeps/linux/sparc/bits/atomicity.h
@@ -0,0 +1,98 @@
+/* Low-level functions for atomic operations. Sparc32 version.
+ Copyright (C) 1999 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. */
+
+#ifndef _ATOMICITY_H
+#define _ATOMICITY_H 1
+
+#include <inttypes.h>
+
+static int
+__attribute__ ((unused))
+exchange_and_add (volatile uint32_t *mem, int val)
+{
+ static unsigned char lock;
+ int result, tmp;
+
+ __asm__ __volatile__("1: ldstub [%1], %0\n\t"
+ " cmp %0, 0\n\t"
+ " bne 1b\n\t"
+ " nop"
+ : "=&r" (tmp)
+ : "r" (&lock)
+ : "memory");
+ result = *mem;
+ *mem += val;
+ __asm__ __volatile__("stb %%g0, [%0]"
+ : /* no outputs */
+ : "r" (&lock)
+ : "memory");
+ return result;
+}
+
+static void
+__attribute__ ((unused))
+atomic_add (volatile uint32_t *mem, int val)
+{
+ static unsigned char lock;
+ int tmp;
+
+ __asm__ __volatile__("1: ldstub [%1], %0\n\t"
+ " cmp %0, 0\n\t"
+ " bne 1b\n\t"
+ " nop"
+ : "=&r" (tmp)
+ : "r" (&lock)
+ : "memory");
+ *mem += val;
+ __asm__ __volatile__("stb %%g0, [%0]"
+ : /* no outputs */
+ : "r" (&lock)
+ : "memory");
+}
+
+static int
+__attribute__ ((unused))
+compare_and_swap (volatile long int *p, long int oldval, long int newval)
+{
+ static unsigned char lock;
+ int ret, tmp;
+
+ __asm__ __volatile__("1: ldstub [%1], %0\n\t"
+ " cmp %0, 0\n\t"
+ " bne 1b\n\t"
+ " nop"
+ : "=&r" (tmp)
+ : "r" (&lock)
+ : "memory");
+ if (*p != oldval)
+ ret = 0;
+ else
+ {
+ *p = newval;
+ ret = 1;
+ }
+ __asm__ __volatile__("stb %%g0, [%0]"
+ : /* no outputs */
+ : "r" (&lock)
+ : "memory");
+
+ return ret;
+}
+
+#endif /* atomicity.h */
diff --git a/libc/sysdeps/linux/sparc/bits/profil-counter.h b/libc/sysdeps/linux/sparc/bits/profil-counter.h
new file mode 100644
index 000000000..1e22e8cce
--- /dev/null
+++ b/libc/sysdeps/linux/sparc/bits/profil-counter.h
@@ -0,0 +1,26 @@
+/* Low-level statistical profiling support function. Linux/SPARC version.
+ Copyright (C) 1997, 1999 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. */
+
+#include <signal.h>
+
+void
+profil_counter (int signo, struct sigcontext *si)
+{
+ profil_count ((void *) si->si_regs.pc);
+}
diff --git a/libc/sysdeps/linux/sparc/bits/sigcontextinfo.h b/libc/sysdeps/linux/sparc/bits/sigcontextinfo.h
new file mode 100644
index 000000000..2c2770d07
--- /dev/null
+++ b/libc/sysdeps/linux/sparc/bits/sigcontextinfo.h
@@ -0,0 +1,29 @@
+/* Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Jakub Jelinek <jakub@redhat.com>, 1999.
+
+ 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. */
+
+#define SIGCONTEXT struct sigcontext *
+#define SIGCONTEXT_EXTRA_ARGS
+#define GET_PC(__ctx) ((void *) ((__ctx)->si_regs.pc))
+#define ADVANCE_STACK_FRAME(__next) \
+ ((void *) (((unsigned *)(__next))+14))
+
+#define GET_STACK(__ctx) ((void *) (__ctx)->si_regs.u_regs[14])
+#define GET_FRAME(__ctx) ADVANCE_STACK_FRAME (GET_STACK(__ctx))
+#define CALL_SIGHANDLER(handler, signo, ctx) \
+ (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))
diff --git a/libc/sysdeps/linux/sparc/bits/stackinfo.h b/libc/sysdeps/linux/sparc/bits/stackinfo.h
new file mode 100644
index 000000000..fd34e2deb
--- /dev/null
+++ b/libc/sysdeps/linux/sparc/bits/stackinfo.h
@@ -0,0 +1,28 @@
+/* Copyright (C) 2001 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. */
+
+/* This file contains a bit of information about the stack allocation
+ of the processor. */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H 1
+
+/* On sparc the stack grows down. */
+#define _STACK_GROWS_DOWN 1
+
+#endif /* stackinfo.h */
diff --git a/libc/sysdeps/linux/v850/bits/sigcontextinfo.h b/libc/sysdeps/linux/v850/bits/sigcontextinfo.h
new file mode 100644
index 000000000..de450ff8a
--- /dev/null
+++ b/libc/sysdeps/linux/v850/bits/sigcontextinfo.h
@@ -0,0 +1,17 @@
+/*
+ * sysdeps/v850/sigcontextinfo.h -- v850-specific pthread signal definitions
+ *
+ * Copyright (C) 2002 NEC Electronics Corporation
+ * Copyright (C) 2002 Miles Bader <miles@gnu.org>
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License. See the file COPYING.LIB in the main
+ * directory of this archive for more details.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ */
+
+#include <signal.h>
+
+#define SIGCONTEXT struct sigcontext *
+#define SIGCONTEXT_EXTRA_ARGS
diff --git a/libc/sysdeps/linux/v850/bits/stackinfo.h b/libc/sysdeps/linux/v850/bits/stackinfo.h
new file mode 100644
index 000000000..3ed732aac
--- /dev/null
+++ b/libc/sysdeps/linux/v850/bits/stackinfo.h
@@ -0,0 +1,23 @@
+/*
+ * bits/stackinfo.h -- v850-specific pthread definitions
+ *
+ * Copyright (C) 2003 NEC Electronics Corporation
+ * Copyright (C) 2003 Miles Bader <miles@gnu.org>
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License. See the file COPYING.LIB in the main
+ * directory of this archive for more details.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ */
+
+/* This file contains a bit of information about the stack allocation
+ of the processor. */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H 1
+
+/* On v80 the stack grows down. */
+#define _STACK_GROWS_DOWN 1
+
+#endif /* stackinfo.h */