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diff --git a/ports/sysdeps/unix/sysv/linux/hppa/sysdep.h b/ports/sysdeps/unix/sysv/linux/hppa/sysdep.h
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index 0000000000..83dd599c68
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+++ b/ports/sysdeps/unix/sysv/linux/hppa/sysdep.h
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+/* Assembler macros for PA-RISC.
+ Copyright (C) 1999, 2001, 2002, 2003, 2007
+ Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper, <drepper@cygnus.com>, August 1999.
+ Linux/PA-RISC changes by Philipp Rumpf, <prumpf@tux.org>, March 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <asm/unistd.h>
+#include <sysdeps/generic/sysdep.h>
+#include <sys/syscall.h>
+
+/* In order to get __set_errno() definition in INLINE_SYSCALL. */
+#ifndef __ASSEMBLER__
+#include <errno.h>
+#endif
+
+#undef ASM_LINE_SEP
+#define ASM_LINE_SEP !
+
+#undef SYS_ify
+#define SYS_ify(syscall_name) (__NR_##syscall_name)
+
+/* WARNING: TREG must be a callee saves register so
+ that it doesn't have to be restored after a call
+ to another function */
+#ifdef PIC
+# define TREG %r3
+# define SAVE_PIC(SREG) copy %r19, SREG ASM_LINE_SEP
+# define LOAD_PIC(LREG) copy LREG, %r19 ASM_LINE_SEP
+/* Inline assembly defines */
+# define TREG_ASM "%r4" /* Cant clobber r3, it holds framemarker */
+# define SAVE_ASM_PIC " copy %%r19, %" TREG_ASM "\n"
+# define LOAD_ASM_PIC " copy %" TREG_ASM ", %%r19\n"
+# define CLOB_TREG TREG_ASM ,
+# define PIC_REG_DEF register unsigned long __r19 asm("r19");
+# define PIC_REG_USE , "r" (__r19)
+#else
+# define TREG %r3
+# define SAVE_PIC(SREG) nop ASM_LINE_SEP
+# define LOAD_PIC(LREG) nop ASM_LINE_SEP
+/* Inline assembly defines */
+# define TREG_ASM
+# define SAVE_ASM_PIC "nop \n"
+# define LOAD_ASM_PIC "nop \n"
+# define CLOB_TREG
+# define PIC_REG_DEF
+# define PIC_REG_USE
+#endif
+
+#ifdef __ASSEMBLER__
+
+/* Syntactic details of assembler. */
+
+#define ALIGNARG(log2) log2
+
+/* For Linux we can use the system call table in the header file
+ /usr/include/asm/unistd.h
+ of the kernel. But these symbols do not follow the SYS_* syntax
+ so we have to redefine the `SYS_ify' macro here. */
+#undef SYS_ify
+#define SYS_ify(syscall_name) __NR_##syscall_name
+
+/* ELF-like local names start with `.L'. */
+#undef L
+#define L(name) .L##name
+
+/* Linux uses a negative return value to indicate syscall errors,
+ unlike most Unices, which use the condition codes' carry flag.
+
+ Since version 2.1 the return value of a system call might be
+ negative even if the call succeeded. E.g., the `lseek' system call
+ might return a large offset. Therefore we must not anymore test
+ for < 0, but test for a real error by making sure the value in %eax
+ is a real error number. Linus said he will make sure the no syscall
+ returns a value in -1 .. -4095 as a valid result so we can safely
+ test with -4095. */
+
+/* We don't want the label for the error handle to be global when we define
+ it here. */
+/*#ifdef PIC
+# define SYSCALL_ERROR_LABEL 0f
+#else
+# define SYSCALL_ERROR_LABEL syscall_error
+#endif*/
+
+/* Argument manipulation from the stack for preparing to
+ make a syscall */
+
+#define DOARGS_0 /* nothing */
+#define DOARGS_1 /* nothing */
+#define DOARGS_2 /* nothing */
+#define DOARGS_3 /* nothing */
+#define DOARGS_4 /* nothing */
+#define DOARGS_5 ldw -52(%sp), %r22 ASM_LINE_SEP
+#define DOARGS_6 DOARGS_5 ldw -56(%sp), %r21 ASM_LINE_SEP
+
+#define UNDOARGS_0 /* nothing */
+#define UNDOARGS_1 /* nothing */
+#define UNDOARGS_2 /* nothing */
+#define UNDOARGS_3 /* nothing */
+#define UNDOARGS_4 /* nothing */
+#define UNDOARGS_5 /* nothing */
+#define UNDOARGS_6 /* nothing */
+
+/* Define an entry point visible from C.
+
+ There is currently a bug in gdb which prevents us from specifying
+ incomplete stabs information. Fake some entries here which specify
+ the current source file. */
+#define ENTRY(name) \
+ .text ASM_LINE_SEP \
+ .align ALIGNARG(4) ASM_LINE_SEP \
+ .export C_SYMBOL_NAME(name) ASM_LINE_SEP \
+ .type C_SYMBOL_NAME(name),@function ASM_LINE_SEP \
+ C_LABEL(name) ASM_LINE_SEP \
+ .PROC ASM_LINE_SEP \
+ .CALLINFO FRAME=64,CALLS,SAVE_RP,ENTRY_GR=3 ASM_LINE_SEP \
+ .ENTRY ASM_LINE_SEP \
+ /* SAVE_RP says we do */ ASM_LINE_SEP \
+ stw %rp, -20(%sr0,%sp) ASM_LINE_SEP \
+ /*FIXME: Call mcount? (carefull with stack!) */
+
+/* Some syscall wrappers do not call other functions, and
+ hence are classified as leaf, so add NO_CALLS for gdb */
+#define ENTRY_LEAF(name) \
+ .text ASM_LINE_SEP \
+ .align ALIGNARG(4) ASM_LINE_SEP \
+ .export C_SYMBOL_NAME(name) ASM_LINE_SEP \
+ .type C_SYMBOL_NAME(name),@function ASM_LINE_SEP \
+ C_LABEL(name) ASM_LINE_SEP \
+ .PROC ASM_LINE_SEP \
+ .CALLINFO FRAME=64,NO_CALLS,SAVE_RP,ENTRY_GR=3 ASM_LINE_SEP \
+ .ENTRY ASM_LINE_SEP \
+ /* SAVE_RP says we do */ ASM_LINE_SEP \
+ stw %rp, -20(%sr0,%sp) ASM_LINE_SEP \
+ /*FIXME: Call mcount? (carefull with stack!) */
+
+#undef END
+#define END(name) \
+ .EXIT ASM_LINE_SEP \
+ .PROCEND ASM_LINE_SEP \
+.size C_SYMBOL_NAME(name), .-C_SYMBOL_NAME(name) ASM_LINE_SEP
+
+/* If compiled for profiling, call `mcount' at the start
+ of each function. No, don't bother. gcc will put the
+ call in for us. */
+#define CALL_MCOUNT /* Do nothing. */
+
+/* syscall wrappers consist of
+ #include <sysdep.h>
+ PSEUDO(...)
+ ret
+ PSEUDO_END(...)
+
+ which means
+ ENTRY(name)
+ DO_CALL(...)
+ nop
+ bv 0(2)
+ nop
+*/
+
+#define PSEUDO(name, syscall_name, args) \
+ ENTRY (name) ASM_LINE_SEP \
+ /* If necc. load args from stack */ ASM_LINE_SEP \
+ DOARGS_##args ASM_LINE_SEP \
+ DO_CALL (syscall_name, args) ASM_LINE_SEP \
+ UNDOARGS_##args ASM_LINE_SEP \
+ nop ASM_LINE_SEP
+
+#define ret \
+ /* Return value set by ERRNO code */ ASM_LINE_SEP \
+ bv,n 0(2) ASM_LINE_SEP
+
+#undef PSEUDO_END
+#define PSEUDO_END(name) \
+ END (name)
+
+/* We don't set the errno on the return from the syscall */
+#define PSEUDO_NOERRNO(name, syscall_name, args) \
+ ENTRY_LEAF (name) ASM_LINE_SEP \
+ DOARGS_##args ASM_LINE_SEP \
+ DO_CALL_NOERRNO (syscall_name, args) ASM_LINE_SEP \
+ UNDOARGS_##args ASM_LINE_SEP \
+ nop ASM_LINE_SEP
+
+#define ret_NOERRNO ret
+
+#undef PSEUDO_END_NOERRNO
+#define PSEUDO_END_NOERRNO(name) \
+ END (name)
+
+/* This has to return the error value */
+#undef PSEUDO_ERRVAL
+#define PSEUDO_ERRVAL(name, syscall_name, args) \
+ ENTRY_LEAF (name) ASM_LINE_SEP \
+ DOARGS_##args ASM_LINE_SEP \
+ DO_CALL_ERRVAL (syscall_name, args) ASM_LINE_SEP \
+ UNDOARGS_##args ASM_LINE_SEP \
+ nop ASM_LINE_SEP
+
+#define ret_ERRVAL ret
+
+#undef PSEUDO_END_ERRVAL
+#define PSEUDO_END_ERRVAL(name) \
+ END(name)
+
+#undef JUMPTARGET
+#define JUMPTARGET(name) name
+#define SYSCALL_PIC_SETUP /* Nothing. */
+
+
+/* FIXME: This comment is not true.
+ * All the syscall assembly macros rely on finding the approriate
+ SYSCALL_ERROR_LABEL or rather HANDLER. */
+
+/* int * __errno_location(void) so you have to store your value
+ into the return address! */
+#define DEFAULT_SYSCALL_ERROR_HANDLER \
+ .import __errno_location,code ASM_LINE_SEP \
+ /* branch to errno handler */ ASM_LINE_SEP \
+ bl __errno_location,%rp ASM_LINE_SEP
+
+/* Here are the myriad of configuration options that the above can
+ work for... what we've done is provide the framework for future
+ changes if required to each section */
+
+#ifdef PIC
+# if RTLD_PRIVATE_ERRNO
+# define SYSCALL_ERROR_HANDLER DEFAULT_SYSCALL_ERROR_HANDLER
+# else /* !RTLD_PRIVATE_ERRNO */
+# if defined _LIBC_REENTRANT
+# define SYSCALL_ERROR_HANDLER DEFAULT_SYSCALL_ERROR_HANDLER
+# else /* !_LIBC_REENTRANT */
+# define SYSCALL_ERROR_HANDLER DEFAULT_SYSCALL_ERROR_HANDLER
+# endif /* _LIBC_REENTRANT */
+# endif /* RTLD_PRIVATE_ERRNO */
+#else
+# ifndef _LIBC_REENTRANT
+# define SYSCALL_ERROR_HANDLER DEFAULT_SYSCALL_ERROR_HANDLER
+# else
+# define SYSCALL_ERROR_HANDLER DEFAULT_SYSCALL_ERROR_HANDLER
+# endif
+#endif
+
+
+/* Linux takes system call arguments in registers:
+ syscall number gr20
+ arg 1 gr26
+ arg 2 gr25
+ arg 3 gr24
+ arg 4 gr23
+ arg 5 gr22
+ arg 6 gr21
+
+ The compiler calls us by the C convention:
+ syscall number in the DO_CALL macro
+ arg 1 gr26
+ arg 2 gr25
+ arg 3 gr24
+ arg 4 gr23
+ arg 5 -52(sp)
+ arg 6 -56(sp)
+
+ gr22 and gr21 are caller-saves, so we can just load the arguments
+ there and generally be happy. */
+
+/* the cmpb...no_error code below inside DO_CALL
+ * is intended to mimic the if (__sys_res...)
+ * code inside INLINE_SYSCALL
+ */
+#define NO_ERROR -0x1000
+
+#undef DO_CALL
+#define DO_CALL(syscall_name, args) \
+ /* Create a frame */ ASM_LINE_SEP \
+ stwm TREG, 64(%sp) ASM_LINE_SEP \
+ stw %sp, -4(%sp) ASM_LINE_SEP \
+ stw %r19, -32(%sp) ASM_LINE_SEP \
+ /* Save r19 */ ASM_LINE_SEP \
+ SAVE_PIC(TREG) ASM_LINE_SEP \
+ /* Do syscall, delay loads # */ ASM_LINE_SEP \
+ ble 0x100(%sr2,%r0) ASM_LINE_SEP \
+ ldi SYS_ify (syscall_name), %r20 ASM_LINE_SEP \
+ ldi NO_ERROR,%r1 ASM_LINE_SEP \
+ cmpb,>>=,n %r1,%ret0,L(pre_end) ASM_LINE_SEP \
+ /* Restore r19 from TREG */ ASM_LINE_SEP \
+ LOAD_PIC(TREG) /* delay */ ASM_LINE_SEP \
+ SYSCALL_ERROR_HANDLER ASM_LINE_SEP \
+ /* Use TREG for temp storage */ ASM_LINE_SEP \
+ copy %ret0, TREG /* delay */ ASM_LINE_SEP \
+ /* OPTIMIZE: Don't reload r19 */ ASM_LINE_SEP \
+ /* do a -1*syscall_ret0 */ ASM_LINE_SEP \
+ sub %r0, TREG, TREG ASM_LINE_SEP \
+ /* Store into errno location */ ASM_LINE_SEP \
+ stw TREG, 0(%sr0,%ret0) ASM_LINE_SEP \
+ /* return -1 as error */ ASM_LINE_SEP \
+ ldo -1(%r0), %ret0 ASM_LINE_SEP \
+L(pre_end): ASM_LINE_SEP \
+ /* Restore our frame, restoring TREG */ ASM_LINE_SEP \
+ ldwm -64(%sp), TREG ASM_LINE_SEP \
+ /* Restore return pointer */ ASM_LINE_SEP \
+ ldw -20(%sp),%rp ASM_LINE_SEP
+
+/* We do nothing with the return, except hand it back to someone else */
+#undef DO_CALL_NOERRNO
+#define DO_CALL_NOERRNO(syscall_name, args) \
+ /* No need to store r19 */ ASM_LINE_SEP \
+ ble 0x100(%sr2,%r0) ASM_LINE_SEP \
+ ldi SYS_ify (syscall_name), %r20 ASM_LINE_SEP \
+ /* Caller will restore r19 */ ASM_LINE_SEP
+
+/* Here, we return the ERRVAL in assembly, note we don't call the
+ error handler function, but we do 'negate' the return _IF_
+ it's an error. Not sure if this is the right semantic. */
+
+#undef DO_CALL_ERRVAL
+#define DO_CALL_ERRVAL(syscall_name, args) \
+ /* No need to store r19 */ ASM_LINE_SEP \
+ ble 0x100(%sr2,%r0) ASM_LINE_SEP \
+ ldi SYS_ify (syscall_name), %r20 ASM_LINE_SEP \
+ /* Caller will restore r19 */ ASM_LINE_SEP \
+ ldi NO_ERROR,%r1 ASM_LINE_SEP \
+ cmpb,>>=,n %r1,%ret0,0f ASM_LINE_SEP \
+ sub %r0, %ret0, %ret0 ASM_LINE_SEP \
+0: ASM_LINE_SEP
+
+
+#else
+
+/* GCC has to be warned that a syscall may clobber all the ABI
+ registers listed as "caller-saves", see page 8, Table 2
+ in section 2.2.6 of the PA-RISC RUN-TIME architecture
+ document. However! r28 is the result and will conflict with
+ the clobber list so it is left out. Also the input arguments
+ registers r20 -> r26 will conflict with the list so they
+ are treated specially. Although r19 is clobbered by the syscall
+ we cannot say this because it would violate ABI, thus we say
+ TREG is clobbered and use that register to save/restore r19
+ across the syscall. */
+
+#define CALL_CLOB_REGS "%r1", "%r2", CLOB_TREG \
+ "%r20", "%r29", "%r31"
+
+#undef INLINE_SYSCALL
+#define INLINE_SYSCALL(name, nr, args...) \
+({ \
+ long __sys_res; \
+ { \
+ register unsigned long __res asm("r28"); \
+ PIC_REG_DEF \
+ LOAD_ARGS_##nr(args) \
+ /* FIXME: HACK save/load r19 around syscall */ \
+ asm volatile( \
+ SAVE_ASM_PIC \
+ " ble 0x100(%%sr2, %%r0)\n" \
+ " ldi %1, %%r20\n" \
+ LOAD_ASM_PIC \
+ : "=r" (__res) \
+ : "i" (SYS_ify(name)) PIC_REG_USE ASM_ARGS_##nr \
+ : "memory", CALL_CLOB_REGS CLOB_ARGS_##nr \
+ ); \
+ __sys_res = (long)__res; \
+ } \
+ if ( (unsigned long)__sys_res >= (unsigned long)-4095 ){ \
+ __set_errno(-__sys_res); \
+ __sys_res = -1; \
+ } \
+ __sys_res; \
+})
+
+/* INTERNAL_SYSCALL_DECL - Allows us to setup some function static
+ value to use within the context of the syscall
+ INTERNAL_SYSCALL_ERROR_P - Returns 0 if it wasn't an error, 1 otherwise
+ You are allowed to use the syscall result (val) and the DECL error
+ variable to determine what went wrong.
+ INTERLAL_SYSCALL_ERRNO - Munges the val/err pair into the error number.
+ In our case we just flip the sign. */
+
+#undef INTERNAL_SYSCALL_DECL
+#define INTERNAL_SYSCALL_DECL(err)
+
+#undef INTERNAL_SYSCALL_ERROR_P
+#define INTERNAL_SYSCALL_ERROR_P(val, err) \
+ ((val < 0) && (val > -4095))
+
+#undef INTERNAL_SYSCALL_ERRNO
+#define INTERNAL_SYSCALL_ERRNO(val, err) (-(val))
+
+/* Similar to INLINE_SYSCALL but we don't set errno */
+#undef INTERNAL_SYSCALL
+#define INTERNAL_SYSCALL(name, err, nr, args...) \
+({ \
+ long __sys_res; \
+ { \
+ register unsigned long __res asm("r28"); \
+ PIC_REG_DEF \
+ LOAD_ARGS_##nr(args) \
+ /* FIXME: HACK save/load r19 around syscall */ \
+ asm volatile( \
+ SAVE_ASM_PIC \
+ " ble 0x100(%%sr2, %%r0)\n" \
+ " ldi %1, %%r20\n" \
+ LOAD_ASM_PIC \
+ : "=r" (__res) \
+ : "i" (SYS_ify(name)) PIC_REG_USE ASM_ARGS_##nr \
+ : "memory", CALL_CLOB_REGS CLOB_ARGS_##nr \
+ ); \
+ __sys_res = (long)__res; \
+ } \
+ __sys_res; \
+ })
+
+
+/* The _NCS variant allows non-constant syscall numbers. */
+#undef INTERNAL_SYSCALL_NCS
+#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \
+({ \
+ long __sys_res; \
+ { \
+ register unsigned long __res asm("r28"); \
+ PIC_REG_DEF \
+ LOAD_ARGS_##nr(args) \
+ /* FIXME: HACK save/load r19 around syscall */ \
+ asm volatile( \
+ SAVE_ASM_PIC \
+ " ble 0x100(%%sr2, %%r0)\n" \
+ " copy %1, %%r20\n" \
+ LOAD_ASM_PIC \
+ : "=r" (__res) \
+ : "r" (name) PIC_REG_USE ASM_ARGS_##nr \
+ : "memory", CALL_CLOB_REGS CLOB_ARGS_##nr \
+ ); \
+ __sys_res = (long)__res; \
+ } \
+ __sys_res; \
+ })
+
+
+
+#define LOAD_ARGS_0()
+#define LOAD_ARGS_1(r26) \
+ register unsigned long __r26 __asm__("r26") = (unsigned long)(r26); \
+ LOAD_ARGS_0()
+#define LOAD_ARGS_2(r26,r25) \
+ register unsigned long __r25 __asm__("r25") = (unsigned long)(r25); \
+ LOAD_ARGS_1(r26)
+#define LOAD_ARGS_3(r26,r25,r24) \
+ register unsigned long __r24 __asm__("r24") = (unsigned long)(r24); \
+ LOAD_ARGS_2(r26,r25)
+#define LOAD_ARGS_4(r26,r25,r24,r23) \
+ register unsigned long __r23 __asm__("r23") = (unsigned long)(r23); \
+ LOAD_ARGS_3(r26,r25,r24)
+#define LOAD_ARGS_5(r26,r25,r24,r23,r22) \
+ register unsigned long __r22 __asm__("r22") = (unsigned long)(r22); \
+ LOAD_ARGS_4(r26,r25,r24,r23)
+#define LOAD_ARGS_6(r26,r25,r24,r23,r22,r21) \
+ register unsigned long __r21 __asm__("r21") = (unsigned long)(r21); \
+ LOAD_ARGS_5(r26,r25,r24,r23,r22)
+
+/* Even with zero args we use r20 for the syscall number */
+#define ASM_ARGS_0
+#define ASM_ARGS_1 ASM_ARGS_0, "r" (__r26)
+#define ASM_ARGS_2 ASM_ARGS_1, "r" (__r25)
+#define ASM_ARGS_3 ASM_ARGS_2, "r" (__r24)
+#define ASM_ARGS_4 ASM_ARGS_3, "r" (__r23)
+#define ASM_ARGS_5 ASM_ARGS_4, "r" (__r22)
+#define ASM_ARGS_6 ASM_ARGS_5, "r" (__r21)
+
+/* The registers not listed as inputs but clobbered */
+#define CLOB_ARGS_6
+#define CLOB_ARGS_5 CLOB_ARGS_6, "%r21"
+#define CLOB_ARGS_4 CLOB_ARGS_5, "%r22"
+#define CLOB_ARGS_3 CLOB_ARGS_4, "%r23"
+#define CLOB_ARGS_2 CLOB_ARGS_3, "%r24"
+#define CLOB_ARGS_1 CLOB_ARGS_2, "%r25"
+#define CLOB_ARGS_0 CLOB_ARGS_1, "%r26"
+
+#endif /* __ASSEMBLER__ */
+
+/* Pointer mangling is not yet supported for HPPA. */
+#define PTR_MANGLE(var) (void) (var)
+#define PTR_DEMANGLE(var) (void) (var)
+
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