From patchwork Mon Dec 10 01:27:04 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?5q+b5pmX?= X-Patchwork-Id: 30600 Received: (qmail 103526 invoked by alias); 10 Dec 2018 01:28:55 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 103408 invoked by uid 89); 10 Dec 2018 01:28:53 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-11.9 required=5.0 tests=BAYES_00, FSL_HELO_NON_FQDN_1, GIT_PATCH_1, GIT_PATCH_3, TIME_LIMIT_EXCEEDED autolearn=unavailable version=3.3.2 spammy=reserve, Reserve, Never, junk X-HELO: vmh-VirtualBox From: Mao Han To: libc-alpha@sourceware.org Cc: Mao Han , c-sky_gcc_upstream@c-sky.com, gnu-csky@mentor.com, ren_guo@c-sky.com, yibin_liu@c-sky.com Subject: [PATCH v7 06/12] C-SKY: Linux ABI Date: Mon, 10 Dec 2018 09:27:04 +0800 Message-Id: <97234ea73537554aef4dd01b769836159a5d3b9c.1544151747.git.han_mao@c-sky.com> In-Reply-To: References: In-Reply-To: References: Linux-specific code that is required for maintaining ABI compatibility. This doesn't contain the actual system call interface. * sysdeps/unix/sysv/linux/csky/Versions: New file. * sysdeps/unix/sysv/linux/csky/bits/mman.h: Likewise. * sysdeps/unix/sysv/linux/csky/bits/procfs.h: Likewise. * sysdeps/unix/sysv/linux/csky/bits/shmlba.h: Likewise. * sysdeps/unix/sysv/linux/csky/c++-types.data: Likewise. * sysdeps/unix/sysv/linux/csky/abiv2/ucontext_i.sym: Likewise. * sysdeps/unix/sysv/linux/csky/ipc_priv.h: Likewise. * sysdeps/unix/sysv/linux/csky/jmp_buf-macros.h: Likewise. * sysdeps/unix/sysv/linux/csky/kernel-features.h: Likewise. * sysdeps/unix/sysv/linux/csky/localplt.data: Likewise. * sysdeps/unix/sysv/linux/csky/makecontext.c: Likewise. * sysdeps/unix/sysv/linux/csky/profil-counter.h: Likewise. * sysdeps/unix/sysv/linux/csky/register-dump.h: Likewise. * sysdeps/unix/sysv/linux/csky/shlib-versions: Likewise. * sysdeps/unix/sysv/linux/csky/sigcontextinfo.h: Likewise. * sysdeps/unix/sysv/linux/csky/sys/cachectl.h: Likewise. * sysdeps/unix/sysv/linux/csky/sys/ucontext.h: Likewise. * sysdeps/unix/sysv/linux/csky/sys/user.h: Likewise. * sysdeps/unix/sysv/linux/csky/sysdep.h: Likewise. --- sysdeps/unix/sysv/linux/csky/Versions | 5 + sysdeps/unix/sysv/linux/csky/abiv2/ucontext_i.sym | 32 ++ sysdeps/unix/sysv/linux/csky/bits/procfs.h | 34 ++ sysdeps/unix/sysv/linux/csky/bits/shmlba.h | 29 ++ sysdeps/unix/sysv/linux/csky/c++-types.data | 67 +++ sysdeps/unix/sysv/linux/csky/ipc_priv.h | 21 + sysdeps/unix/sysv/linux/csky/jmp_buf-macros.h | 6 + sysdeps/unix/sysv/linux/csky/kernel-features.h | 29 ++ sysdeps/unix/sysv/linux/csky/localplt.data | 19 + sysdeps/unix/sysv/linux/csky/makecontext.c | 74 +++ sysdeps/unix/sysv/linux/csky/profil-counter.h | 31 ++ sysdeps/unix/sysv/linux/csky/register-dump.h | 193 ++++++++ sysdeps/unix/sysv/linux/csky/shlib-versions | 9 + sysdeps/unix/sysv/linux/csky/sigcontextinfo.h | 32 ++ sysdeps/unix/sysv/linux/csky/sys/cachectl.h | 38 ++ sysdeps/unix/sysv/linux/csky/sys/ucontext.h | 90 ++++ sysdeps/unix/sysv/linux/csky/sys/user.h | 64 +++ sysdeps/unix/sysv/linux/csky/sysdep.h | 534 ++++++++++++++++++++++ 18 files changed, 1307 insertions(+) create mode 100644 sysdeps/unix/sysv/linux/csky/Versions create mode 100644 sysdeps/unix/sysv/linux/csky/abiv2/ucontext_i.sym create mode 100644 sysdeps/unix/sysv/linux/csky/bits/procfs.h create mode 100644 sysdeps/unix/sysv/linux/csky/bits/shmlba.h create mode 100644 sysdeps/unix/sysv/linux/csky/c++-types.data create mode 100644 sysdeps/unix/sysv/linux/csky/ipc_priv.h create mode 100644 sysdeps/unix/sysv/linux/csky/jmp_buf-macros.h create mode 100644 sysdeps/unix/sysv/linux/csky/kernel-features.h create mode 100644 sysdeps/unix/sysv/linux/csky/localplt.data create mode 100644 sysdeps/unix/sysv/linux/csky/makecontext.c create mode 100644 sysdeps/unix/sysv/linux/csky/profil-counter.h create mode 100644 sysdeps/unix/sysv/linux/csky/register-dump.h create mode 100644 sysdeps/unix/sysv/linux/csky/shlib-versions create mode 100644 sysdeps/unix/sysv/linux/csky/sigcontextinfo.h create mode 100644 sysdeps/unix/sysv/linux/csky/sys/cachectl.h create mode 100644 sysdeps/unix/sysv/linux/csky/sys/ucontext.h create mode 100644 sysdeps/unix/sysv/linux/csky/sys/user.h create mode 100644 sysdeps/unix/sysv/linux/csky/sysdep.h diff --git a/sysdeps/unix/sysv/linux/csky/Versions b/sysdeps/unix/sysv/linux/csky/Versions new file mode 100644 index 0000000..b61b3b2 --- /dev/null +++ b/sysdeps/unix/sysv/linux/csky/Versions @@ -0,0 +1,5 @@ +libc { + GLIBC_2.29 { + cacheflush; + } +} diff --git a/sysdeps/unix/sysv/linux/csky/abiv2/ucontext_i.sym b/sysdeps/unix/sysv/linux/csky/abiv2/ucontext_i.sym new file mode 100644 index 0000000..4581b65 --- /dev/null +++ b/sysdeps/unix/sysv/linux/csky/abiv2/ucontext_i.sym @@ -0,0 +1,32 @@ +#include +#include +#include +#include + +SIG_BLOCK +SIG_SETMASK + +-- Offsets of the fields in the ucontext_t structure. +#define ucontext(member) offsetof (ucontext_t, member) +#define mcontext(member) ucontext (uc_mcontext.member) +#define greg(member) mcontext (__gregs.member) +#define fpreg(member) mcontext (__fpregs.member) + +UCONTEXT_FLAGS ucontext (__uc_flags) +UCONTEXT_LINK ucontext (uc_link) +UCONTEXT_STACK ucontext (uc_stack) +UCONTEXT_MCONTEXT ucontext (uc_mcontext) +UCONTEXT_SIGMASK ucontext (uc_sigmask) + +MCONTEXT_CSKY_PC greg (__pc) +MCONTEXT_CSKY_SP greg (__usp) +MCONTEXT_CSKY_LR greg (__lr) +MCONTEXT_CSKY_A0 greg (__a0) +MCONTEXT_CSKY_R8 greg (__regs[2]) +MCONTEXT_CSKY_R16 greg (__exregs[0]) +MCONTEXT_CSKY_HI greg (__rhi) +MCONTEXT_CSKY_LO greg (__rlo) +MCONTEXT_CSKY_R4 greg (__regs[0]) +MCONTEXT_CSKY_FESR fpreg (__fesr) +MCONTEXT_CSKY_FCR fpreg (__fcr) +MCONTEXT_CSKY_FR0 fpreg (__vr[0]) diff --git a/sysdeps/unix/sysv/linux/csky/bits/procfs.h b/sysdeps/unix/sysv/linux/csky/bits/procfs.h new file mode 100644 index 0000000..83e37b0 --- /dev/null +++ b/sysdeps/unix/sysv/linux/csky/bits/procfs.h @@ -0,0 +1,34 @@ +/* Types for registers for sys/procfs.h. C-SKY version. + Copyright (C) 2018 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, see + . */ + +#ifndef _SYS_PROCFS_H +# error "Never include directly; use instead." +#endif + +/* Type for a general-purpose register. */ +typedef unsigned long elf_greg_t; + +/* And the whole bunch of them. We could have used `struct + user_regs' directly in the typedef, but tradition says that + the register set is an array, which does have some peculiar + semantics, so leave it that way. */ +#define ELF_NGREG (sizeof (struct user_regs) / sizeof(elf_greg_t)) +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + +/* Register set for the floating-point registers. */ +typedef struct user_fpregs elf_fpregset_t; diff --git a/sysdeps/unix/sysv/linux/csky/bits/shmlba.h b/sysdeps/unix/sysv/linux/csky/bits/shmlba.h new file mode 100644 index 0000000..3eb6c27 --- /dev/null +++ b/sysdeps/unix/sysv/linux/csky/bits/shmlba.h @@ -0,0 +1,29 @@ +/* Define SHMLBA. C-SKY version. + Copyright (C) 2018 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, see + . */ + +#ifndef _SYS_SHM_H +# error "Never use directly; include instead." +#endif + +__BEGIN_DECLS + +/* Segment low boundary address multiple. */ +#define SHMLBA (__getpagesize () << 2) +extern int __getpagesize (void) __THROW __attribute__ ((__const__)); + +__END_DECLS diff --git a/sysdeps/unix/sysv/linux/csky/c++-types.data b/sysdeps/unix/sysv/linux/csky/c++-types.data new file mode 100644 index 0000000..303f457 --- /dev/null +++ b/sysdeps/unix/sysv/linux/csky/c++-types.data @@ -0,0 +1,67 @@ +blkcnt64_t:x +blkcnt_t:l +blksize_t:i +caddr_t:Pc +clockid_t:i +clock_t:l +daddr_t:i +dev_t:y +fd_mask:l +fsblkcnt64_t:y +fsblkcnt_t:m +fsfilcnt64_t:y +fsfilcnt_t:m +fsid_t:8__fsid_t +gid_t:j +id_t:j +ino64_t:y +ino_t:m +int16_t:s +int32_t:i +int64_t:x +int8_t:a +intptr_t:i +key_t:i +loff_t:x +mode_t:j +nlink_t:j +off64_t:x +off_t:l +pid_t:i +pthread_attr_t:14pthread_attr_t +pthread_barrier_t:17pthread_barrier_t +pthread_barrierattr_t:21pthread_barrierattr_t +pthread_cond_t:14pthread_cond_t +pthread_condattr_t:18pthread_condattr_t +pthread_key_t:j +pthread_mutex_t:15pthread_mutex_t +pthread_mutexattr_t:19pthread_mutexattr_t +pthread_once_t:i +pthread_rwlock_t:16pthread_rwlock_t +pthread_rwlockattr_t:20pthread_rwlockattr_t +pthread_spinlock_t:i +pthread_t:m +quad_t:x +register_t:i +rlim64_t:y +rlim_t:m +sigset_t:10__sigset_t +size_t:j +socklen_t:j +ssize_t:i +suseconds_t:l +time_t:l +u_char:h +uid_t:j +uint:j +u_int:j +u_int16_t:t +u_int32_t:j +u_int64_t:y +u_int8_t:h +ulong:m +u_long:m +u_quad_t:y +useconds_t:j +ushort:t +u_short:t diff --git a/sysdeps/unix/sysv/linux/csky/ipc_priv.h b/sysdeps/unix/sysv/linux/csky/ipc_priv.h new file mode 100644 index 0000000..56ded89 --- /dev/null +++ b/sysdeps/unix/sysv/linux/csky/ipc_priv.h @@ -0,0 +1,21 @@ +/* Old SysV permission definition for Linux. C-SKY version. + Copyright (C) 2017-2018 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, see + . */ + +#include /* For __key_t */ + +#define __IPC_64 0x0 diff --git a/sysdeps/unix/sysv/linux/csky/jmp_buf-macros.h b/sysdeps/unix/sysv/linux/csky/jmp_buf-macros.h new file mode 100644 index 0000000..5a390c7 --- /dev/null +++ b/sysdeps/unix/sysv/linux/csky/jmp_buf-macros.h @@ -0,0 +1,6 @@ +#define JMP_BUF_SIZE 268 +#define SIGJMP_BUF_SIZE 268 +#define JMP_BUF_ALIGN 4 +#define SIGJMP_BUF_ALIGN 4 +#define MASK_WAS_SAVED_OFFSET 136 +#define SAVED_MASK_OFFSET 140 diff --git a/sysdeps/unix/sysv/linux/csky/kernel-features.h b/sysdeps/unix/sysv/linux/csky/kernel-features.h new file mode 100644 index 0000000..f1fbc71 --- /dev/null +++ b/sysdeps/unix/sysv/linux/csky/kernel-features.h @@ -0,0 +1,29 @@ +/* Set flags signalling availability of kernel features based on given + kernel version number. + Copyright (C) 2018 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, see + . */ + +#include_next + +/* fadvise64_64 reorganize the syscall arguments. */ +#define __ASSUME_FADVISE64_64_6ARG 1 + +/* Define this if your 32-bit syscall API requires 64-bit register + pairs to start with an even-number register. */ +#ifdef __CSKYABIV1__ +# define __ASSUME_ALIGNED_REGISTER_PAIRS 1 +#endif diff --git a/sysdeps/unix/sysv/linux/csky/localplt.data b/sysdeps/unix/sysv/linux/csky/localplt.data new file mode 100644 index 0000000..14c02cb --- /dev/null +++ b/sysdeps/unix/sysv/linux/csky/localplt.data @@ -0,0 +1,19 @@ +# See scripts/check-localplt.awk for how this file is processed. +# PLT use is required for the malloc family and for matherr because +# users can define their own functions and have library internals call them. +libc.so: calloc +libc.so: free +libc.so: malloc +libc.so: memalign +libc.so: realloc +# The main malloc is interposed into the dynamic linker, for +# allocations after the initial link (when dlopen is used). +ld.so: malloc +ld.so: calloc +ld.so: realloc +ld.so: free +# The TLS-enabled version of these functions is interposed from libc.so. +ld.so: _dl_signal_error +ld.so: _dl_catch_error +ld.so: _dl_signal_exception +ld.so: _dl_catch_exception diff --git a/sysdeps/unix/sysv/linux/csky/makecontext.c b/sysdeps/unix/sysv/linux/csky/makecontext.c new file mode 100644 index 0000000..c0d7d1e --- /dev/null +++ b/sysdeps/unix/sysv/linux/csky/makecontext.c @@ -0,0 +1,74 @@ +/* Create new context. C-SKY version. + Copyright (C) 2018 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, see + . */ + +#include +#include + +/* Number of arguments that go in registers. */ +#define NREG_ARGS 4 + +/* Take a context previously prepared via getcontext() and set to + call func() with the given int only args. */ +void +__makecontext (ucontext_t *ucp, void (*func) (void), int argc, ...) +{ + extern void __startcontext (void); + unsigned long *funcstack; + va_list vl; + unsigned long *regptr; + unsigned int reg; + int misaligned; + + /* Start at the top of stack. */ + funcstack = (unsigned long *) (ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size); + + /* Ensure the stack stays eight byte aligned. */ + misaligned = ((unsigned long) funcstack & 4) != 0; + + if ((argc > NREG_ARGS) && (argc & 1) != 0) + misaligned = !misaligned; + + if (misaligned) + funcstack -= 1; + + va_start (vl, argc); + + /* Reserve space for the on-stack arguments. */ + if (argc > NREG_ARGS) + funcstack -= (argc - NREG_ARGS); + + ucp->uc_mcontext.__gregs.__usp = (unsigned long) funcstack; + ucp->uc_mcontext.__gregs.__pc = (unsigned long) func; + + /* Exit to startcontext() with the next context in R9. */ + ucp->uc_mcontext.__gregs.__regs[5] = (unsigned long) ucp->uc_link; + ucp->uc_mcontext.__gregs.__lr = (unsigned long) __startcontext; + + /* The first four arguments go into registers. */ + regptr = &(ucp->uc_mcontext.__gregs.__a0); + + for (reg = 0; (reg < argc) && (reg < NREG_ARGS); reg++) + *regptr++ = va_arg (vl, unsigned long); + + /* And the remainder on the stack. */ + for (; reg < argc; reg++) + *funcstack++ = va_arg (vl, unsigned long); + + va_end (vl); +} +weak_alias (__makecontext, makecontext) diff --git a/sysdeps/unix/sysv/linux/csky/profil-counter.h b/sysdeps/unix/sysv/linux/csky/profil-counter.h new file mode 100644 index 0000000..1f7ec7a --- /dev/null +++ b/sysdeps/unix/sysv/linux/csky/profil-counter.h @@ -0,0 +1,31 @@ +/* Low-level statistical profiling support function. Linux/C-SKY version. + Copyright (C) 2018 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, see + . */ + +#include +#include + +void +__profil_counter (int signo, const SIGCONTEXT scp) +{ + profil_count ((void *) GET_PC (scp)); + + /* This is a hack to prevent the compiler from implementing the + above function call as a sibcall. The sibcall would overwrite + the signal context. */ + asm volatile (""); +} diff --git a/sysdeps/unix/sysv/linux/csky/register-dump.h b/sysdeps/unix/sysv/linux/csky/register-dump.h new file mode 100644 index 0000000..9abe87a --- /dev/null +++ b/sysdeps/unix/sysv/linux/csky/register-dump.h @@ -0,0 +1,193 @@ +/* Dump registers. + Copyright (C) 2018 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, see + . */ + +#include +#include <_itoa.h> +#include +#include + +/* abiv1 register dump in this format: + + PSR: XXXXXXXX PC: XXXXXXXX SP: XXXXXXXX LR: XXXXXXXX + MASK: XXXXXXXX + + A0: XXXXXXXX A1: XXXXXXXX A2: XXXXXXXX A3: XXXXXXXX + R6: XXXXXXXX R7: XXXXXXXX R8: XXXXXXXX R9: XXXXXXXX + R10: XXXXXXXX R11: XXXXXXXX R12: XXXXXXXX R13: XXXXXXXX + R14: XXXXXXXX R1: XXXXXXXX + + abiv2 register dump in this format: + + PSR: XXXXXXXX PC: XXXXXXXX SP: XXXXXXXX LR: XXXXXXXX + MASK: XXXXXXXX + + A0: XXXXXXXX A1: XXXXXXXX A2: XXXXXXXX A3: XXXXXXXX + R4: XXXXXXXX R5: XXXXXXXX R6: XXXXXXXX R7: XXXXXXXX + R8: XXXXXXXX R9: XXXXXXXX R10: XXXXXXXX R11: XXXXXXXX + R12: XXXXXXXX R13: XXXXXXXX R14: XXXXXXXX R15: XXXXXXXX + R16: XXXXXXXX R17: XXXXXXXX R18: XXXXXXXX R19: XXXXXXXX + R20: XXXXXXXX R21: XXXXXXXX R22: XXXXXXXX R23: XXXXXXXX + R24: XXXXXXXX R25: XXXXXXXX R26: XXXXXXXX R27: XXXXXXXX + R28: XXXXXXXX R29: XXXXXXXX R30: XXXXXXXX R31: XXXXXXXX + + */ + +static void +hexvalue (unsigned long int value, char *buf, size_t len) +{ + char *cp = _itoa_word (value, buf + len, 16, 0); + while (cp > buf) + *--cp = '0'; +} + +static void +register_dump (int fd, const struct ucontext_t *ctx) +{ + char regs[35][8]; + struct iovec iov[97]; + size_t nr = 0; + +#define ADD_STRING(str) \ + iov[nr].iov_base = (char *) str; \ + iov[nr].iov_len = strlen (str); \ + ++nr +#define ADD_MEM(str, len) \ + iov[nr].iov_base = str; \ + iov[nr].iov_len = len; \ + ++nr + + /* Generate strings of register contents. */ + hexvalue (ctx->uc_mcontext.__gregs.__sr, regs[0], 8); + hexvalue (ctx->uc_mcontext.__gregs.__pc, regs[1], 8); + hexvalue (ctx->uc_mcontext.__gregs.__usp, regs[2], 8); + hexvalue (ctx->uc_mcontext.__gregs.__lr, regs[3], 8); + hexvalue (ctx->uc_mcontext.__mask, regs[4], 8); + hexvalue (ctx->uc_mcontext.__gregs.__a0, regs[5], 8); + hexvalue (ctx->uc_mcontext.__gregs.__a1, regs[6], 8); + hexvalue (ctx->uc_mcontext.__gregs.__a2, regs[7], 8); + hexvalue (ctx->uc_mcontext.__gregs.__a3, regs[8], 8); + hexvalue (ctx->uc_mcontext.__gregs.__regs[0], regs[9], 8); + hexvalue (ctx->uc_mcontext.__gregs.__regs[1], regs[10], 8); + hexvalue (ctx->uc_mcontext.__gregs.__regs[2], regs[11], 8); + hexvalue (ctx->uc_mcontext.__gregs.__regs[3], regs[12], 8); + hexvalue (ctx->uc_mcontext.__gregs.__regs[4], regs[13], 8); + hexvalue (ctx->uc_mcontext.__gregs.__regs[5], regs[14], 8); + hexvalue (ctx->uc_mcontext.__gregs.__regs[6], regs[15], 8); + hexvalue (ctx->uc_mcontext.__gregs.__regs[7], regs[16], 8); + hexvalue (ctx->uc_mcontext.__gregs.__regs[8], regs[17], 8); + hexvalue (ctx->uc_mcontext.__gregs.__regs[9], regs[18], 8); + hexvalue (ctx->uc_mcontext.__gregs.__exregs[0], regs[19], 8); + hexvalue (ctx->uc_mcontext.__gregs.__exregs[1], regs[20], 8); + hexvalue (ctx->uc_mcontext.__gregs.__exregs[2], regs[21], 8); + hexvalue (ctx->uc_mcontext.__gregs.__exregs[3], regs[22], 8); + hexvalue (ctx->uc_mcontext.__gregs.__exregs[4], regs[23], 8); + hexvalue (ctx->uc_mcontext.__gregs.__exregs[5], regs[24], 8); + hexvalue (ctx->uc_mcontext.__gregs.__exregs[6], regs[25], 8); + hexvalue (ctx->uc_mcontext.__gregs.__exregs[7], regs[26], 8); + hexvalue (ctx->uc_mcontext.__gregs.__exregs[8], regs[27], 8); + hexvalue (ctx->uc_mcontext.__gregs.__exregs[9], regs[28], 8); + hexvalue (ctx->uc_mcontext.__gregs.__exregs[10], regs[29], 8); + hexvalue (ctx->uc_mcontext.__gregs.__exregs[11], regs[30], 8); + hexvalue (ctx->uc_mcontext.__gregs.__exregs[12], regs[31], 8); + hexvalue (ctx->uc_mcontext.__gregs.__exregs[13], regs[32], 8); + hexvalue (ctx->uc_mcontext.__gregs.__exregs[14], regs[33], 8); + hexvalue (ctx->uc_mcontext.__gregs.__tls, regs[34], 8); + + /* Generate the output. */ + ADD_STRING ("Register dump:\n\n PSR: "); + ADD_MEM (regs[0], 8); + ADD_STRING (" PC: "); + ADD_MEM (regs[1], 8); + ADD_STRING (" SP: "); + ADD_MEM (regs[2], 8); + ADD_STRING (" LR: "); + ADD_MEM (regs[3], 8); + ADD_STRING ("\n MASK: "); + ADD_MEM (regs[4], 8); + ADD_STRING ("\n\n A0: "); + ADD_MEM (regs[5], 8); + ADD_STRING (" A1: "); + ADD_MEM (regs[6], 8); + ADD_STRING (" A2: "); + ADD_MEM (regs[7], 8); + ADD_STRING (" A3: "); + ADD_MEM (regs[8], 8); + ADD_STRING ("\n R4: "); + ADD_MEM (regs[9], 8); + ADD_STRING (" r5: "); + ADD_MEM (regs[10], 8); + ADD_STRING (" r6: "); + ADD_MEM (regs[11], 8); + ADD_STRING (" r7: "); + ADD_MEM (regs[12], 8); + ADD_STRING ("\n R8: "); + ADD_MEM (regs[13], 8); + ADD_STRING (" R9: "); + ADD_MEM (regs[14], 8); + ADD_STRING (" R10: "); + ADD_MEM (regs[15], 8); + ADD_STRING (" R11: "); + ADD_MEM (regs[16], 8); + ADD_STRING ("\n R12: "); + ADD_MEM (regs[17], 8); + ADD_STRING (" R13: "); + ADD_MEM (regs[18], 8); + ADD_STRING (" R14: "); + ADD_MEM (regs[19], 8); + ADD_STRING (" R15: "); + ADD_MEM (regs[20], 8); + ADD_STRING ("\n R16: "); + ADD_MEM (regs[21], 8); + ADD_STRING (" R17: "); + ADD_MEM (regs[22], 8); + ADD_STRING (" R18: "); + ADD_MEM (regs[23], 8); + ADD_STRING (" R19: "); + ADD_MEM (regs[24], 8); + ADD_STRING ("\n R20: "); + ADD_MEM (regs[25], 8); + ADD_STRING (" R21: "); + ADD_MEM (regs[26], 8); + ADD_STRING (" R22: "); + ADD_MEM (regs[27], 8); + ADD_STRING (" R23: "); + ADD_MEM (regs[28], 8); + ADD_STRING ("\n R24: "); + ADD_MEM (regs[29], 8); + ADD_STRING (" R25: "); + ADD_MEM (regs[30], 8); + ADD_STRING (" R26: "); + ADD_MEM (regs[31], 8); + ADD_STRING (" R27: "); + ADD_MEM (regs[32], 8); + ADD_STRING ("\n R28: "); + ADD_MEM (regs[33], 8); + ADD_STRING (" R29: "); + ADD_MEM (regs[34], 8); + ADD_STRING (" R30: "); + ADD_MEM (regs[33], 8); + ADD_STRING (" TP: "); + ADD_MEM (regs[34], 8); + + ADD_STRING ("\n"); + + /* Write the stuff out. */ + writev (fd, iov, nr); +} + +#define REGISTER_DUMP register_dump (fd, ctx) diff --git a/sysdeps/unix/sysv/linux/csky/shlib-versions b/sysdeps/unix/sysv/linux/csky/shlib-versions new file mode 100644 index 0000000..8c02635 --- /dev/null +++ b/sysdeps/unix/sysv/linux/csky/shlib-versions @@ -0,0 +1,9 @@ +DEFAULT GLIBC_2.29 + +%if CSKYABI == 2 && CSKY_HARD_FLOAT == 1 +ld=ld-linux-cskyv2-hf.so.1 +%elif CSKYABI == 2 && CSKY_HARD_FLOAT == 0 +ld=ld-linux-cskyv2.so.1 +%else +%error cannot determine ABI +%endif diff --git a/sysdeps/unix/sysv/linux/csky/sigcontextinfo.h b/sysdeps/unix/sysv/linux/csky/sigcontextinfo.h new file mode 100644 index 0000000..b9054d3 --- /dev/null +++ b/sysdeps/unix/sysv/linux/csky/sigcontextinfo.h @@ -0,0 +1,32 @@ +/* C-SKY definitions for signal handling calling conventions. + Copyright (C) 2018 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, see + . */ + +#define SIGCONTEXT siginfo_t *_si, struct ucontext_t * +#define GET_PC(ctx) ((void *) (ctx)->uc_mcontext.__gregs.__pc) + +/* There is no reliable way to get the sigcontext unless we use a + three-argument signal handler. */ +#define __sigaction(sig, act, oact) ({ \ + (act)->sa_flags |= SA_SIGINFO; \ + (__sigaction) (sig, act, oact); \ +}) + +#define sigaction(sig, act, oact) ({ \ + (act)->sa_flags |= SA_SIGINFO; \ + (sigaction) (sig, act, oact); \ +}) diff --git a/sysdeps/unix/sysv/linux/csky/sys/cachectl.h b/sysdeps/unix/sysv/linux/csky/sys/cachectl.h new file mode 100644 index 0000000..bdc7dbb --- /dev/null +++ b/sysdeps/unix/sysv/linux/csky/sys/cachectl.h @@ -0,0 +1,38 @@ +/* C-SKY cache flushing interface. + Copyright (C) 2018 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, see + . */ + +#ifndef _SYS_CACHECTL_H +#define _SYS_CACHECTL_H 1 + +#include + +/* Get the kernel definition for the op bits. */ +#include + +__BEGIN_DECLS + +#ifdef __USE_MISC +extern int cacheflush (void *__addr, const int __nbytes, + const int __op) __THROW; +#endif +extern int _flush_cache (char *__addr, const int __nbytes, + const int __op) __THROW; + +__END_DECLS + +#endif /* sys/cachectl.h */ diff --git a/sysdeps/unix/sysv/linux/csky/sys/ucontext.h b/sysdeps/unix/sysv/linux/csky/sys/ucontext.h new file mode 100644 index 0000000..7ecb3ff --- /dev/null +++ b/sysdeps/unix/sysv/linux/csky/sys/ucontext.h @@ -0,0 +1,90 @@ +/* struct ucontext definition, C-SKY version. + Copyright (C) 2018 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, see + . */ + +#ifndef _SYS_UCONTEXT_H +#define _SYS_UCONTEXT_H 1 + +#include + +#include +#include + +typedef struct + { + unsigned long __tls; + unsigned long __lr; + unsigned long __pc; + unsigned long __sr; + unsigned long __usp; + + /* + * a0, a1, a2, a3: + * abiv1: r2, r3, r4, r5 + * abiv2: r0, r1, r2, r3 + */ + + unsigned long __orig_a0; + unsigned long __a0; + unsigned long __a1; + unsigned long __a2; + unsigned long __a3; + + /* + * ABIV2: r4 ~ r13 + */ + unsigned long __regs[10]; + + /* r16 ~ r30 */ + unsigned long __exregs[15]; + + unsigned long __rhi; + unsigned long __rlo; + unsigned long __glibc_reserved; + } gregset_t; + +typedef struct + { + unsigned long __vr[64]; + unsigned long __fcr; + unsigned long __fesr; + unsigned long __fid; + unsigned long __glibc_reserved; + } fpregset_t; + +/* Context to describe whole processor state. */ +typedef struct + { + unsigned long __mask; + gregset_t __gregs; + fpregset_t __fpregs; + } mcontext_t; + +/* Userlevel context. */ +typedef struct ucontext_t + { + unsigned long int __uc_flags; + struct ucontext_t *uc_link; + stack_t uc_stack; + mcontext_t uc_mcontext; + sigset_t uc_sigmask; + } ucontext_t; + +#undef __ctx + + +#endif /* sys/ucontext.h */ diff --git a/sysdeps/unix/sysv/linux/csky/sys/user.h b/sysdeps/unix/sysv/linux/csky/sys/user.h new file mode 100644 index 0000000..d9253b5 --- /dev/null +++ b/sysdeps/unix/sysv/linux/csky/sys/user.h @@ -0,0 +1,64 @@ +/* ptrace register data format definitions. C-SKY version. + Copyright (C) 2018 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, see + . */ + +#ifndef _SYS_USER_H +#define _SYS_USER_H 1 + +struct user_fpregs { + unsigned long fsr; /* fpu status reg */ + unsigned long fesr; /* fpu exception status reg */ + unsigned long fp[32]; /* fpu general regs */ +}; + +struct user_regs { +#if defined(__ck807__) || defined(__ck810__) || defined(__ck860__) + unsigned long int uregs[34]; /* CSKY V2 has 32 general rgister. */ +#else + unsigned long int uregs[18]; /* CSKY V1 has 16 general rgister. */ +#endif +}; + +/* 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 regs; /* The registers are actually stored. */ + int u_fpvalid; /* True if math co-processor being used. */ + +/* 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. */ + struct user_regs * 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. */ + struct user_fpregs u_fp; + struct user_fpregs* u_fpstate; /* Math Co-processor pointer. */ +}; + +#endif /* _SYS_USER_H */ diff --git a/sysdeps/unix/sysv/linux/csky/sysdep.h b/sysdeps/unix/sysv/linux/csky/sysdep.h new file mode 100644 index 0000000..cec6f95 --- /dev/null +++ b/sysdeps/unix/sysv/linux/csky/sysdep.h @@ -0,0 +1,534 @@ +/* Assembly macros for C-SKY. + Copyright (C) 2018 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, see + . */ + +#ifndef _LINUX_CSKY_SYSDEP_H +#define _LINUX_CSKY_SYSDEP_H 1 + +/* There is some commonality. */ +#include +#include +#include + +/* Defines RTLD_PRIVATE_ERRNO and USE_DL_SYSINFO. */ +#include + +#include + +/* In order to get __set_errno() definition in INLINE_SYSCALL. */ +#ifndef __ASSEMBLER__ +# include +#endif + +#undef SYS_ify +#define SYS_ify(syscall_name) (__NR_##syscall_name) + +#ifdef __ASSEMBLER__ +/* 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 R0 + 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. */ + +# undef PSEUDO +# define PSEUDO(name, syscall_name, args) \ + .text; \ + ENTRY (name); \ + DO_CALL (syscall_name, args); + +# define GETGB \ + grs t0, .Lgetpc; \ +.Lgetpc: \ + lrw gb, .Lgetpc@GOTPC; \ + addu gb, t0; + +# if IS_IN (libc) +# ifdef __PIC__ +# define PSEUDO_RET \ + btsti a0, 31; \ + bf 1f; \ + subi sp, 8; \ + st.w lr, (sp); \ + st.w gb, (sp, 4); \ + GETGB; \ + lrw a2, SYSCALL_ERROR@PLT; \ + add a2, gb; \ + ld.w a2, (a2); \ + jsr a2; \ + ld.w lr, (sp); \ + ld.w gb, (sp, 4); \ + addi sp, 8; \ +1: \ + rts +# else +# define PSEUDO_RET \ + btsti a0, 31; \ + bf 1f; \ + jmpi SYSCALL_ERROR; \ +1: \ + rts +# endif +# else +# ifdef __PIC__ +# define PSEUDO_RET \ + btsti a0, 31; \ + bf 1f; \ + subi sp, 8; \ + st.w lr, (sp); \ + st.w gb, (sp, 4); \ + GETGB; \ + bsr SYSCALL_ERROR; \ + ld.w lr, (sp); \ + ld.w gb, (sp, 4); \ + addi sp, 8; \ +1: \ + rts +# else +# define PSEUDO_RET \ + btsti a0, 31; \ + bt SYSCALL_ERROR; \ + rts +# endif +# endif + +# undef ret +# define ret PSEUDO_RET + +# undef PSEUDO_END +# define PSEUDO_END(name) \ + .align 4; \ + SYSCALL_ERROR_HANDLER; \ + END (name) + +# undef PSEUDO_NOERRNO +# define PSEUDO_NOERRNO(name, syscall_name, args) \ + .text; \ + ENTRY (name); \ + DO_CALL (syscall_name, args) + +# define PSEUDO_RET_NOERRNO rts + +# undef ret_NOERRNO +# define ret_NOERRNO PSEUDO_RET_NOERRNO + +# undef PSEUDO_END_NOERRNO +# define PSEUDO_END_NOERRNO(name) END (name) + +/* The function has to return the error code. */ +# undef PSEUDO_ERRVAL +# define PSEUDO_ERRVAL(name, syscall_name, args) \ + .text; \ + ENTRY (name) \ + DO_CALL (syscall_name, args); \ + not a0; \ + addi a0, 1 + +# undef PSEUDO_END_ERRVAL +# define PSEUDO_END_ERRVAL(name) END (name) + +# define ret_ERRVAL rts + +# if !IS_IN (libc) +# define SYSCALL_ERROR __local_syscall_error +# if RTLD_PRIVATE_ERRNO +# ifdef __PIC__ +# define SYSCALL_ERROR_HANDLER \ +__local_syscall_error: \ + lrw a1, rtld_errno@PLT; \ + addu a1, gb; \ + ldw a1, (a1); \ + rsubi a0, 0; \ + stw a0, (a1); \ + bmaski a0, 0; \ + rts +# else /* __PIC__ */ +# define SYSCALL_ERROR_HANDLER \ +__local_syscall_error: \ + lrw a1, rtld_errno; \ + rsubi a0, 0; \ + stw a0, (a1); \ + bmaski a0, 0; \ + rts +# endif /* __PIC__ */ +# else /* !RTLD_PRIVATE_ERRNO */ +# ifdef __PIC__ +# define SYSCALL_ERROR_HANDLER \ +__local_syscall_error: \ + subi sp, 8; \ + stw a0, (sp, 0); \ + stw r15, (sp, 4); \ + lrw a1, __errno_location@PLT; \ + add a1, gb; \ + ldw a1, (a1); \ + jsr a1; \ + ldw a1, (sp, 0); /* load errno*/ \ + ldw r15, (sp, 4); \ + addi sp, 8; \ + movi a2, 0; \ + rsub a1, a1, a2; \ + stw a1, (a0); \ + bmaski a0, 0; \ + rts +# else +# define SYSCALL_ERROR_HANDLER \ +__local_syscall_error: \ + subi sp, 8; \ + stw a0, (sp, 0); \ + stw r15, (sp, 4); \ + lrw a1, __errno_location; \ + jsr a1; \ + ldw a1, (sp, 0); /* load errno */ \ + ldw r15, (sp, 4); \ + addi sp, 8; \ + movi a2, 0; \ + rsub a1, a1, a2; \ + stw a1, (a0); \ + bmaski a0, 0; \ + rts +# endif /* __PIC__ */ +# endif/* RTLD_PRIVATE_ERROR */ +# else +# define SYSCALL_ERROR_HANDLER /* Nothing here; code in sysdep.S is used. */ +# define SYSCALL_ERROR __syscall_error +# endif/* IS_IN (libc) */ + +/* define DO_CALL */ +# undef DO_CALL +# define DO_CALL(syscall_name, args) \ + DOARGS_##args; \ + lrw r7, SYS_ify(syscall_name); \ + trap 0; \ + UNDOARGS_##args + +# undef DOARGS_0 +# define DOARGS_0 \ + subi sp, 8; \ + cfi_adjust_cfa_offset (8); \ + stw r7, (sp, 0); \ + cfi_rel_offset (r7, 0); + +# undef DOARGS_1 +# define DOARGS_1 DOARGS_0 +# undef DOARGS_2 +# define DOARGS_2 DOARGS_0 +# undef DOARGS_3 +# define DOARGS_3 DOARGS_0 +# undef DOARGS_4 +# define DOARGS_4 DOARGS_0 +# undef DOARGS_5 +# define DOARGS_5 \ + subi sp, 8; \ + cfi_adjust_cfa_offset (8); \ + stw r7, (sp, 0); \ + cfi_rel_offset (7, 0); \ + stw r4, (sp, 4); \ + cfi_rel_offset (4, 4); \ + ldw r4, (sp, 8) +# undef DOARGS_6 +# define DOARGS_6 \ + subi sp, 16; \ + cfi_adjust_cfa_offset (16); \ + stw r7, (sp, 0); \ + cfi_rel_offset (7, 0); \ + stw r4, (sp, 4); \ + cfi_rel_offset (4, 4); \ + stw r5, (sp, 8); \ + cfi_rel_offset (5, 8); \ + ldw r4, (sp, 16); \ + ldw r5, (sp, 20) + +# undef UNDOARGS_0 +# define UNDOARGS_0 \ + ldw r7, (sp, 0); \ + cfi_restore (r7); \ + addi sp, 8; \ + cfi_adjust_cfa_offset (-8); + +# undef UNDOARGS_1 +# define UNDOARGS_1 UNDOARGS_0 +# undef UNDOARGS_2 +# define UNDOARGS_2 UNDOARGS_0 +# undef UNDOARGS_3 +# define UNDOARGS_3 UNDOARGS_0 +# undef UNDOARGS_4 +# define UNDOARGS_4 UNDOARGS_0 +# undef UNDOARGS_5 +# define UNDOARGS_5 \ + ldw r7, (sp, 0); \ + cfi_restore (r4); \ + ldw r4, (sp, 4); \ + cfi_restore (r4); \ + addi sp, 8; \ + cfi_adjust_cfa_offset (-8); + +# undef UNDOARGS_6 +# define UNDOARGS_6 \ + ldw r7, (sp, 0); \ + cfi_restore (r7); \ + ldw r4, (sp, 4); \ + cfi_restore (r4); \ + ldw r5, (sp, 8); \ + cfi_restore (r5); \ + addi sp, 16; \ + cfi_adjust_cfa_offset (-16); + +#else /* not __ASSEMBLER__ */ + +/* Define a macro which expands into the inline wrapper code for a system + call. */ +# undef INLINE_SYSCALL +# define INLINE_SYSCALL(name, nr, args...) \ + ({ unsigned int _sys_result = INTERNAL_SYSCALL (name, , nr, args); \ + if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (_sys_result,), 0)) \ + { \ + __set_errno (INTERNAL_SYSCALL_ERRNO (_sys_result, )); \ + _sys_result = (unsigned int) -1; \ + } \ + (int) _sys_result; }) + +# undef INTERNAL_SYSCALL_DECL +# define INTERNAL_SYSCALL_DECL(err) do { } while (0) + +# undef INTERNAL_SYSCALL_ERROR_P +# define INTERNAL_SYSCALL_ERROR_P(val, err) \ + ((unsigned int) (val) >= 0xffffff01u) + +# undef INTERNAL_SYSCALL_ERRNO +# define INTERNAL_SYSCALL_ERRNO(val, err) (-(val)) + +# undef INTERNAL_SYSCALL_RAW +# define INTERNAL_SYSCALL_RAW0(name, err, dummy...) \ + ({unsigned int __sys_result; \ + { \ + register int _a1 __asm__ ("a0"), _nr __asm__ ("r7"); \ + _nr = name; \ + __asm__ __volatile__ ("trap 0 \n\t" \ + : "=r" (_a1) \ + : "r" (_nr) \ + : "memory"); \ + __sys_result = _a1; \ + } \ + (int) __sys_result; }) + +# define INTERNAL_SYSCALL_RAW1(name, err, arg1) \ + ({unsigned int __sys_result; \ + register int _tmp_arg1 = (int)(arg1); \ + { \ + register int _a1 __asm__ ("a0"), _nr __asm__ ("r7"); \ + _a1 = _tmp_arg1; \ + _nr = name; \ + __asm__ __volatile__ ("trap 0 \n\t" \ + : "=r" (_a1) \ + : "r" (_nr), "r" (_a1) \ + : "memory"); \ + __sys_result = _a1; \ + } \ + (int) __sys_result; }) + +# define INTERNAL_SYSCALL_RAW2(name, err, arg1, arg2) \ + ({unsigned int __sys_result; \ + register int _tmp_arg1 = (int)(arg1), _tmp_arg2 = (int)(arg2); \ + { \ + register int _nr __asm__ ("r7"); \ + register int _a1 __asm__ ("a0"), _a2 __asm__ ("a1"); \ + _a1 = _tmp_arg1, _a2 = _tmp_arg2; \ + _nr = name; \ + __asm__ __volatile__ ("trap 0 \n\t" \ + : "=r" (_a1) \ + : "r" (_nr), "r" (_a1), "r" (_a2) \ + : "memory"); \ + __sys_result = _a1; \ + } \ + (int) __sys_result; }) + +# define INTERNAL_SYSCALL_RAW3(name, err, arg1, arg2, arg3) \ + ({unsigned int __sys_result; \ + register int _tmp_arg1 = (int)(arg1), _tmp_arg2 = (int)(arg2); \ + register int _tmp_arg3 = (int)(arg3); \ + { \ + register int _nr __asm__ ("r7"); \ + register int _a1 __asm__ ("a0"), _a2 __asm__ ("a1"); \ + register int _a3 __asm__ ("a2"); \ + _a1 = _tmp_arg1; \ + _a2 = _tmp_arg2; \ + _a3 = _tmp_arg3; \ + _nr = name; \ + __asm__ __volatile__ ("trap 0 \n\t" \ + : "=r" (_a1) \ + : "r" (_nr), "r" (_a1), "r" (_a2), \ + "r" (_a3) \ + : "memory"); \ + __sys_result = _a1; \ + } \ + (int) __sys_result; }) + +# define INTERNAL_SYSCALL_RAW4(name, err, arg1, arg2, arg3, arg4) \ + ({unsigned int __sys_result; \ + register int _tmp_arg1 = (int)(arg1), _tmp_arg2 = (int)(arg2); \ + register int _tmp_arg3 = (int)(arg3), _tmp_arg4 = (int)(arg4); \ + { \ + register int _nr __asm__ ("r7"); \ + register int _a1 __asm__ ("a0"), _a2 __asm__ ("a1"); \ + register int _a3 __asm__ ("a2"), _a4 __asm__ ("a3"); \ + _a1 = _tmp_arg1, _a2 = _tmp_arg2, _a3 = _tmp_arg3; \ + _a4 = _tmp_arg4; \ + _nr = name; \ + __asm__ __volatile__ ("trap 0 \n\t" \ + : "=r" (_a1) \ + : "r" (_nr), "r" (_a1), "r" (_a2), \ + "r" (_a3), "r" (_a4) \ + : "memory"); \ + __sys_result = _a1; \ + } \ + (int) __sys_result; }) + +# define INTERNAL_SYSCALL_RAW5(name, err, arg1, arg2, arg3, arg4, \ + arg5) \ + ({unsigned int __sys_result; \ + register int _tmp_arg1 = (int)(arg1), _tmp_arg2 = (int)(arg2); \ + register int _tmp_arg3 = (int)(arg3), _tmp_arg4 = (int)(arg4); \ + register int _tmp_arg5 = (int)(arg5); \ + { \ + register int _nr __asm__ ("r7"); \ + register int _a1 __asm__ ("a0"), _a2 __asm__ ("a1"); \ + register int _a3 __asm__ ("a2"), _a4 __asm__ ("a3"); \ + register int _a5 __asm__ ("r4"); \ + _a1 = _tmp_arg1, _a2 = _tmp_arg2, _a3 = _tmp_arg3; \ + _a4 = _tmp_arg4, _a5 = _tmp_arg5; \ + _nr = name; \ + __asm__ __volatile__ ("trap 0 \n\t" \ + : "=r" (_a1) \ + : "r" (_nr), "r" (_a1), "r" (_a2), \ + "r" (_a3), "r" (_a4), "r" (_a5) \ + : "memory"); \ + __sys_result = _a1; \ + } \ + (int) __sys_result; }) + +# define INTERNAL_SYSCALL_RAW6(name, err, arg1, arg2, arg3, arg4, \ + arg5, arg6) \ + ({unsigned int __sys_result; \ + register int _tmp_arg1 = (int)(arg1), _tmp_arg2 = (int)(arg2); \ + register int _tmp_arg3 = (int)(arg3), _tmp_arg4 = (int)(arg4); \ + register int _tmp_arg5 = (int)(arg5), _tmp_arg6 = (int)(arg6); \ + { \ + register int _nr __asm__ ("r7"); \ + register int _a1 __asm__ ("a0"), _a2 __asm__ ("a1"); \ + register int _a3 __asm__ ("a2"), _a4 __asm__ ("a3"); \ + register int _a5 __asm__ ("r4"), _a6 __asm__ ("r5"); \ + _a1 = _tmp_arg1, _a2 = _tmp_arg2, _a3 = _tmp_arg3; \ + _a4 = _tmp_arg4, _a5 = _tmp_arg5, _a6 = _tmp_arg6; \ + _nr = name; \ + __asm__ __volatile__ ("trap 0 \n\t" \ + : "=r" (_a1) \ + : "r" (_nr), "r" (_a1), "r" (_a2), \ + "r" (_a3), "r" (_a4), "r" (_a5), \ + "r" (_a6) \ + : "memory"); \ + __sys_result = _a1; \ + } \ + (int) __sys_result; }) + +# define INTERNAL_SYSCALL_RAW7(name, err, arg1, arg2, arg3, arg4, \ + arg5, arg6, arg7) \ + ({unsigned int __sys_result; \ + register int _tmp_arg1 = (int)(arg1), _tmp_arg2 = (int)(arg2); \ + register int _tmp_arg3 = (int)(arg3), _tmp_arg4 = (int)(arg4); \ + register int _tmp_arg5 = (int)(arg5), _tmp_arg6 = (int)(arg6); \ + register int _tmp_arg7 = (int)(arg7); \ + { \ + register int _nr __asm__ ("r7"); \ + register int _a1 __asm__ ("a0"), _a2 __asm__ ("a1"); \ + register int _a3 __asm__ ("a2"), _a4 __asm__ ("a3"); \ + register int _a5 __asm__ ("r4"), _a6 __asm__ ("r5"); \ + register int _a7 __asm__ ("r6"); \ + _a1 = _tmp_arg1, _a2 = _tmp_arg2, _a3 = _tmp_arg3; \ + _a4 = _tmp_arg4, _a5 = _tmp_arg5, _a6 = _tmp_arg6; \ + _a7 = _tmp_arg7; \ + _nr = name; \ + __asm__ __volatile__ ("trap 0 \n\t" \ + : "=r" (_a1) \ + : "r" (_nr), "r" (_a1), "r" (_a2), \ + "r" (_a3), "r" (_a4), "r" (_a5), \ + "r" (_a6), "r" (_a7) \ + : "memory"); \ + __sys_result = _a1; \ + } \ + (int) __sys_result; }) + +# undef INTERNAL_SYSCALL +# define INTERNAL_SYSCALL(name, err, nr, args...) \ + INTERNAL_SYSCALL_RAW##nr(SYS_ify(name), err, args) + +# undef INTERNAL_SYSCALL_NCS +# define INTERNAL_SYSCALL_NCS(number, err, nr, args...) \ + INTERNAL_SYSCALL_RAW##nr (number, err, args) + +#endif /* __ASSEMBLER__ */ + +/* Pointer mangling support. */ +#if (IS_IN (rtld) || \ + (!defined SHARED && (IS_IN (libc) || IS_IN (libpthread)))) +# ifdef __ASSEMBLER__ +# define PTR_MANGLE(dst, src, guard) \ + grs t0, 1f; \ +1: \ + lrw guard, 1b@GOTPC; \ + addu t0, guard; \ + lrw guard, __pointer_chk_guard_local@GOT; \ + ldr.w guard, (t0, guard << 0); \ + ldw guard, (guard, 0); \ + xor dst, src, guard; +# define PTR_DEMANGLE(dst, src, guard) PTR_MANGLE (dst, src, guard) +# define PTR_MANGLE2(dst, src, guard) \ + xor dst, src, guard +# define PTR_DEMANGLE2(dst, src, guard) PTR_MANGLE2 (dst, src, guard) +# else +extern uintptr_t __pointer_chk_guard_local; +# define PTR_MANGLE(var) \ + (var) = (__typeof (var)) ((uintptr_t) (var) ^ __pointer_chk_guard_local) +# define PTR_DEMANGLE(var) PTR_MANGLE (var) +# endif +#else +# ifdef __ASSEMBLER__ +# define PTR_MANGLE(dst, src, guard) \ + grs t0, 1f; \ +1: \ + lrw guard, 1b@GOTPC; \ + addu t0, guard; \ + lrw guard, __pointer_chk_guard@GOT; \ + ldr.w guard, (t0, guard << 0); \ + ldw guard, (guard, 0); \ + xor dst, src, guard; +# define PTR_DEMANGLE(dst, src, guard) PTR_MANGLE (dst, src, guard) +# define PTR_MANGLE2(dst, src, guard) \ + xor dst, src, guard +# define PTR_DEMANGLE2(dst, src, guard) PTR_MANGLE2 (dst, src, guard) +# else +extern uintptr_t __pointer_chk_guard; +# define PTR_MANGLE(var) \ + (var) = (__typeof (var)) ((uintptr_t) (var) ^ __pointer_chk_guard) +# define PTR_DEMANGLE(var) PTR_MANGLE (var) +# endif +#endif + +#endif /* linux/csky/sysdep.h */