From 919d99c7c00655a0376ed0ba0f22b1bba7510583 Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Mon, 15 Mar 2010 11:04:05 +0100 Subject: nios2: Add sys/user.h This is a fixed version containing copyright information. The patch should now apply using 'git am'. linux/user.h is no longer exported during kernel make headers_install Signed-off-by: Atle Nissestad Signed-off-by: Tobias Klauser Signed-off-by: Bernhard Reutner-Fischer --- libc/sysdeps/linux/nios2/sys/user.h | 93 +++++++++++++++++++++++++++++++++++++ 1 file changed, 93 insertions(+) create mode 100644 libc/sysdeps/linux/nios2/sys/user.h (limited to 'libc/sysdeps/linux/nios2') diff --git a/libc/sysdeps/linux/nios2/sys/user.h b/libc/sysdeps/linux/nios2/sys/user.h new file mode 100644 index 000000000..b34e93e97 --- /dev/null +++ b/libc/sysdeps/linux/nios2/sys/user.h @@ -0,0 +1,93 @@ +#ifndef _SYS_USER_H +#define _SYS_USER_H 1 + +/* + This file was taken from the nios2 port of the Linux Kernel. + + Copyright (c) 2008 Atle Nissestad + Copyright (c) 2010 Tobias Klauser + + This file is licensed under the terms of the GNU General Public License, + Version 2. + */ + +#include + +/* Core file format: The core file is written in such a way that gdb + can understand it and provide useful information to the user (under + linux we use the 'trad-core' bfd). There are quite a number of + obstacles to being able to view the contents of the floating point + registers, and until these are solved you will not be able to view the + contents of them. Actually, you can read in the core file and look at + the contents of the user struct to find out what the floating point + registers contain. + The actual file contents are as follows: + UPAGE: 1 page consisting of a user struct that tells gdb what is present + in the file. Directly after this is a copy of the task_struct, which + is currently not used by gdb, but it may come in useful at some point. + All of the registers are stored as part of the upage. The upage should + always be only one page. + DATA: The data area is stored. We use current->end_text to + current->brk to pick up all of the user variables, plus any memory + that may have been malloced. No attempt is made to determine if a page + is demand-zero or if a page is totally unused, we just cover the entire + range. All of the addresses are rounded in such a way that an integral + number of pages is written. + STACK: We need the stack information in order to get a meaningful + backtrace. We need to write the data from (esp) to + current->start_stack, so we round each of these off in order to be able + to write an integer number of pages. + The minimum core file size is 3 pages, or 12288 bytes. +*/ + +struct user_nios2fp_struct { +}; + +/* This is the old layout of "struct pt_regs" as of Linux 1.x, and + is still the layout used by user (the new pt_regs doesn't have + all registers). */ +struct user_regs_struct { + long r1,r2,r3,r4,r5,r6,r7,r8; + long r9,r10,r11,r12,r13,r14,r15; + long r16,r17,r18,r19,r20,r21,r22,r23; + long gp; + long sp; + long ra; + long fp; + long orig_r2; + long estatus; + long status_extension; + long ea; +}; + +/* When the kernel dumps core, it starts by dumping the user struct - + this will be used by gdb to figure out where the data and stack segments + are within the file, and what virtual addresses to use. */ +struct user { +/* We start with the registers, to mimic the way that "memory" is returned + from the ptrace(3,...) function. */ + struct user_regs_struct regs; /* Where the registers are actually stored */ + +/* The rest of this junk is to help gdb figure out what goes where */ + unsigned long int u_tsize; /* Text segment size (pages). */ + unsigned long int u_dsize; /* Data segment size (pages). */ + unsigned long int u_ssize; /* Stack segment size (pages). */ + unsigned long start_code; /* Starting virtual address of text. */ + unsigned long start_stack; /* Starting virtual address of stack area. + This is actually the bottom of the stack, + the top of the stack is always found in the + esp register. */ + long int signal; /* Signal that caused the core dump. */ + int reserved; /* No longer used */ + unsigned long u_ar0; /* Used by gdb to help find the values for */ + /* the registers. */ + unsigned long magic; /* To uniquely identify a core file */ + char u_comm[32]; /* User command that was responsible */ +}; + +#define NBPG PAGE_SIZE +#define UPAGES 1 +#define HOST_TEXT_START_ADDR (u.start_code) +#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG) + +#endif -- cgit v1.2.3 From bfb15be4e65cdcd214794060b154baeca57d8338 Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Thu, 18 Mar 2010 12:24:07 +0100 Subject: nios2: Update fcntl.h from m68k Signed-off-by: Tobias Klauser Signed-off-by: Austin Foxley --- libc/sysdeps/linux/nios2/bits/fcntl.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'libc/sysdeps/linux/nios2') diff --git a/libc/sysdeps/linux/nios2/bits/fcntl.h b/libc/sysdeps/linux/nios2/bits/fcntl.h index 7d0bcf946..e564b4217 100644 --- a/libc/sysdeps/linux/nios2/bits/fcntl.h +++ b/libc/sysdeps/linux/nios2/bits/fcntl.h @@ -1,5 +1,5 @@ /* O_*, F_*, FD_* bit values for Linux. - Copyright (C) 2000 Free Software Foundation, Inc. + Copyright (C) 2000, 2004 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 @@ -48,6 +48,8 @@ # define O_DIRECTORY 040000 /* Must be a directory. */ # define O_NOFOLLOW 0100000 /* Do not follow links. */ # define O_DIRECT 0200000 /* Direct disk access. */ +# define O_NOATIME 01000000 /* Do not set atime. */ +# define O_CLOEXEC 02000000 /* set close_on_exec */ #endif /* For now Linux has synchronisity options for data and read operations. @@ -81,7 +83,7 @@ #define F_SETLK64 13 /* Set record locking info (non-blocking). */ #define F_SETLKW64 14 /* Set record locking info (blocking). */ -#if defined __USE_BSD || defined __USE_XOPEN2K +#if defined __USE_BSD || defined __USE_UNIX98 # define F_SETOWN 8 /* Get owner of socket (receiver of SIGIO). */ # define F_GETOWN 9 /* Set owner of socket (receiver of SIGIO). */ #endif -- cgit v1.2.3 From 41d4cc097c3ff663b2379e9740eff4f7946903c5 Mon Sep 17 00:00:00 2001 From: Tobias Klauser Date: Thu, 18 Mar 2010 12:24:08 +0100 Subject: nios2: Define INTERNAL_SYSCALL_NCS, use common sycall defines Define the nios2 version of INTERNAL_SYSCALL_NCS and remove all sycall defines already defined by the common syscall defines. This will make the master branch of uClibc compile again for nios2. Signed-off-by: Tobias Klauser Signed-off-by: Austin Foxley --- libc/sysdeps/linux/nios2/bits/syscalls.h | 359 ++++++++----------------------- 1 file changed, 85 insertions(+), 274 deletions(-) (limited to 'libc/sysdeps/linux/nios2') diff --git a/libc/sysdeps/linux/nios2/bits/syscalls.h b/libc/sysdeps/linux/nios2/bits/syscalls.h index ec5370712..f80bea206 100644 --- a/libc/sysdeps/linux/nios2/bits/syscalls.h +++ b/libc/sysdeps/linux/nios2/bits/syscalls.h @@ -9,287 +9,98 @@ #include #include -#define __syscall_return(type, res) \ -do { \ - if ((unsigned long)(res) >= (unsigned long)(-125)) { \ - \ - /* avoid using res which is declared to be in \ - register r2; errno might expand to a function \ - call and clobber it. */ \ - \ - int __err = -(res); \ - errno = __err; \ - res = -1; \ - } \ - return (type) (res); \ -} while (0) +#define __syscall_return(type, res) \ + do { \ + if (unlikely(INTERNAL_SYSCALL_ERROR_P(res, ))) { \ + __set_errno(INTERNAL_SYSCALL_ERRNO(res, )); \ + res = (unsigned long) -1; \ + } \ + return (type) (res); \ + } while (0) -#define _syscall0(type,name) \ -type name(void) \ -{ \ - long __res; \ - \ - __asm__ __volatile__ ( \ - \ - " \n\t" \ - \ - " movi r2, %2\n\t" /* TRAP_ID_SYSCALL */ \ - " movi r3, %1\n\t" /* __NR_##name */ \ - \ - " trap\n\t" \ - " mov %0, r2\n\t" /* syscall rtn */ \ - \ - " \n\t" \ - \ - : "=r" (__res) /* %0 */ \ - \ - : "i" (__NR_##name) /* %1 */ \ - , "i" (TRAP_ID_SYSCALL) /* %2 */ \ - \ - : "r2" /* Clobbered */ \ - , "r3" /* Clobbered */ \ - ); \ - \ -__syscall_return(type,__res); \ -} +#define INTERNAL_SYSCALL_NCS(name, err, nr, args...) \ + ({ \ + long __res; \ + __asm__ __volatile__ ( \ + "movi r2, %2\n\t" /* TRAP_ID_SYSCALL */ \ + "movi r3, %1\n\t" /* __NR_##name */ \ + ASM_ARGS_##nr \ + "trap\n\t" \ + "mov %0, r2\n\t" /* syscall return */ \ + : "=r" (__res) /* %0 */ \ + : "i" (name) /* %1 */ \ + , "i" (TRAP_ID_SYSCALL) /* %2 */ \ + MAP_ARGS_##nr (args) /* %3-%8 */ \ + : "r2" \ + , "r3" \ + CLOB_ARGS_##nr /* Clobbered */ \ + ); \ + __res; \ + }) -#define _syscall1(type,name,atype,a) \ -type name(atype a) \ -{ \ - long __res; \ - \ - __asm__ __volatile__ ( \ - \ - " \n\t" \ - \ - " movi r2, %2\n\t" /* TRAP_ID_SYSCALL */ \ - " movi r3, %1\n\t" /* __NR_##name */ \ - " mov r4, %3\n\t" /* (long) a */ \ - \ - " trap\n\t" \ - " mov %0, r2\n\t" /* syscall rtn */ \ - \ - " \n\t" \ - \ - : "=r" (__res) /* %0 */ \ - \ - : "i" (__NR_##name) /* %1 */ \ - , "i" (TRAP_ID_SYSCALL) /* %2 */ \ - , "r" ((long) a) /* %3 */ \ - \ - : "r2" /* Clobbered */ \ - , "r3" /* Clobbered */ \ - , "r4" /* Clobbered */ \ - ); \ - \ -__syscall_return(type,__res); \ -} +#define INTERNAL_SYSCALL_ERROR_P(val, err) \ + ((unsigned long)(val) >= (unsigned long)(-125)) -#define _syscall2(type,name,atype,a,btype,b) \ -type name(atype a,btype b) \ -{ \ - long __res; \ - \ - __asm__ __volatile__ ( \ - \ - " \n\t" \ - \ - " movi r2, %2\n\t" /* TRAP_ID_SYSCALL */ \ - " movi r3, %1\n\t" /* __NR_##name */ \ - " mov r4, %3\n\t" /* (long) a */ \ - " mov r5, %4\n\t" /* (long) b */ \ - \ - " trap\n\t" \ - " mov %0, r2\n\t" /* syscall rtn */ \ - \ - " \n\t" \ - \ - : "=r" (__res) /* %0 */ \ - \ - : "i" (__NR_##name) /* %1 */ \ - , "i" (TRAP_ID_SYSCALL) /* %2 */ \ - , "r" ((long) a) /* %3 */ \ - , "r" ((long) b) /* %4 */ \ - \ - : "r2" /* Clobbered */ \ - , "r3" /* Clobbered */ \ - , "r4" /* Clobbered */ \ - , "r5" /* Clobbered */ \ - ); \ - \ -__syscall_return(type,__res); \ -} +#define ASM_ARGS_0 +#define MAP_ARGS_0() +#define CLOB_ARGS_0 -#define _syscall3(type,name,atype,a,btype,b,ctype,c) \ -type name(atype a,btype b,ctype c) \ -{ \ - long __res; \ - \ - __asm__ __volatile__ ( \ - \ - " \n\t" \ - \ - " movi r2, %2\n\t" /* TRAP_ID_SYSCALL */ \ - " movi r3, %1\n\t" /* __NR_##name */ \ - " mov r4, %3\n\t" /* (long) a */ \ - " mov r5, %4\n\t" /* (long) b */ \ - " mov r6, %5\n\t" /* (long) c */ \ - \ - " trap\n\t" \ - " mov %0, r2\n\t" /* syscall rtn */ \ - \ - " \n\t" \ - \ - : "=r" (__res) /* %0 */ \ - \ - : "i" (__NR_##name) /* %1 */ \ - , "i" (TRAP_ID_SYSCALL) /* %2 */ \ - , "r" ((long) a) /* %3 */ \ - , "r" ((long) b) /* %4 */ \ - , "r" ((long) c) /* %5 */ \ - \ - : "r2" /* Clobbered */ \ - , "r3" /* Clobbered */ \ - , "r4" /* Clobbered */ \ - , "r5" /* Clobbered */ \ - , "r6" /* Clobbered */ \ - ); \ - \ -__syscall_return(type,__res); \ -} +#define ASM_ARGS_1 \ + "mov r4, %3\n\t" +#define MAP_ARGS_1(a) \ + , "r" ((long) a) +#define CLOB_ARGS_1 \ + , "r4" -#define _syscall4(type,name,atype,a,btype,b,ctype,c,dtype,d) \ -type name (atype a, btype b, ctype c, dtype d) \ -{ \ - long __res; \ - \ - __asm__ __volatile__ ( \ - \ - " \n\t" \ - \ - " movi r2, %2\n\t" /* TRAP_ID_SYSCALL */ \ - " movi r3, %1\n\t" /* __NR_##name */ \ - " mov r4, %3\n\t" /* (long) a */ \ - " mov r5, %4\n\t" /* (long) b */ \ - " mov r6, %5\n\t" /* (long) c */ \ - " mov r7, %6\n\t" /* (long) d */ \ - \ - " trap\n\t" \ - " mov %0, r2\n\t" /* syscall rtn */ \ - \ - " \n\t" \ - \ - : "=r" (__res) /* %0 */ \ - \ - : "i" (__NR_##name) /* %1 */ \ - , "i" (TRAP_ID_SYSCALL) /* %2 */ \ - , "r" ((long) a) /* %3 */ \ - , "r" ((long) b) /* %4 */ \ - , "r" ((long) c) /* %5 */ \ - , "r" ((long) d) /* %6 */ \ - \ - : "r2" /* Clobbered */ \ - , "r3" /* Clobbered */ \ - , "r4" /* Clobbered */ \ - , "r5" /* Clobbered */ \ - , "r6" /* Clobbered */ \ - , "r7" /* Clobbered */ \ - ); \ - \ -__syscall_return(type,__res); \ -} +#define ASM_ARGS_2 \ + ASM_ARGS_1 \ + "mov r5, %4\n\t" +#define MAP_ARGS_2(a, b) \ + MAP_ARGS_1(a) \ + , "r" ((long) b) +#define CLOB_ARGS_2 \ + CLOB_ARGS_1 \ + , "r5" -#define _syscall5(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e) \ -type name (atype a,btype b,ctype c,dtype d,etype e) \ -{ \ - long __res; \ - \ - __asm__ __volatile__ ( \ - \ - " \n\t" \ - \ - " movi r2, %2\n\t" /* TRAP_ID_SYSCALL */ \ - " movi r3, %1\n\t" /* __NR_##name */ \ - " mov r4, %3\n\t" /* (long) a */ \ - " mov r5, %4\n\t" /* (long) b */ \ - " mov r6, %5\n\t" /* (long) c */ \ - " mov r7, %6\n\t" /* (long) c */ \ - " mov r8, %7\n\t" /* (long) e */ \ - \ - " trap\n\t" \ - " mov %0, r2\n\t" /* syscall rtn */ \ - \ - " \n\t" \ - \ - : "=r" (__res) /* %0 */ \ - \ - : "i" (__NR_##name) /* %1 */ \ - , "i" (TRAP_ID_SYSCALL) /* %2 */ \ - , "r" ((long) a) /* %3 */ \ - , "r" ((long) b) /* %4 */ \ - , "r" ((long) c) /* %5 */ \ - , "r" ((long) d) /* %6 */ \ - , "r" ((long) e) /* %7 */ \ - \ - : "r2" /* Clobbered */ \ - , "r3" /* Clobbered */ \ - , "r4" /* Clobbered */ \ - , "r5" /* Clobbered */ \ - , "r6" /* Clobbered */ \ - , "r7" /* Clobbered */ \ - , "r8" /* Clobbered */ \ - ); \ - \ -__syscall_return(type,__res); \ -} +#define ASM_ARGS_3 \ + ASM_ARGS_2 \ + "mov r6, %5\n\t" +#define MAP_ARGS_3(a, b, c) \ + MAP_ARGS_2(a, b) \ + , "r" ((long) c) +#define CLOB_ARGS_3 \ + CLOB_ARGS_2 \ + , "r6" -#define _syscall6(type,name,atype,a,btype,b,ctype,c,dtype,d,etype,e,ftype,f) \ -type name (atype a,btype b,ctype c,dtype d,etype e,ftype f) \ -{ \ - long __res; \ - \ - __asm__ __volatile__ ( \ - \ - " \n\t" \ - \ - " movi r2, %2\n\t" /* TRAP_ID_SYSCALL */ \ - " movi r3, %1\n\t" /* __NR_##name */ \ - " mov r4, %3\n\t" /* (long) a */ \ - " mov r5, %4\n\t" /* (long) b */ \ - " mov r6, %5\n\t" /* (long) c */ \ - " mov r7, %6\n\t" /* (long) c */ \ - " mov r8, %7\n\t" /* (long) e */ \ - " mov r9, %8\n\t" /* (long) f */ \ - \ - " trap\n\t" \ - " mov %0, r2\n\t" /* syscall rtn */ \ - \ - " \n\t" \ - \ - : "=r" (__res) /* %0 */ \ - \ - : "i" (__NR_##name) /* %1 */ \ - , "i" (TRAP_ID_SYSCALL) /* %2 */ \ - , "r" ((long) a) /* %3 */ \ - , "r" ((long) b) /* %4 */ \ - , "r" ((long) c) /* %5 */ \ - , "r" ((long) d) /* %6 */ \ - , "r" ((long) e) /* %7 */ \ - , "r" ((long) f) /* %8 */ \ - \ - : "r2" /* Clobbered */ \ - , "r3" /* Clobbered */ \ - , "r4" /* Clobbered */ \ - , "r5" /* Clobbered */ \ - , "r6" /* Clobbered */ \ - , "r7" /* Clobbered */ \ - , "r8" /* Clobbered */ \ - , "r9" /* Clobbered */ \ - ); \ - \ -__syscall_return(type,__res); \ -} +#define ASM_ARGS_4 \ + ASM_ARGS_3 \ + "mov r7, %6\n\t" +#define MAP_ARGS_4(a, b, c, d) \ + MAP_ARGS_3(a, b, c) \ + , "r" ((long) d) +#define CLOB_ARGS_4 \ + CLOB_ARGS_3 \ + , "r7" + +#define ASM_ARGS_5 \ + ASM_ARGS_4 \ + "mov r8, %7\n\t" +#define MAP_ARGS_5(a, b, c, d, e) \ + MAP_ARGS_4(a, b, c, d) \ + , "r" ((long) e) +#define CLOB_ARGS_5 \ + CLOB_ARGS_4 \ + , "r8" + +#define ASM_ARGS_6 \ + ASM_ARGS_5 \ + "mov r9, %8\n\t" +#define MAP_ARGS_6(a, b, c, d, e, f) \ + MAP_ARGS_5(a, b, c, d, e) \ + , "r" ((long) f) +#define CLOB_ARGS_6 \ + CLOB_ARGS_5 \ + , "r9" #endif /* __ASSEMBLER__ */ #endif /* _BITS_SYSCALLS_H */ - -- cgit v1.2.3