diff options
Diffstat (limited to 'REORG.TODO/sysdeps/mach/i386')
| -rw-r--r-- | REORG.TODO/sysdeps/mach/i386/machine-lock.h | 67 | ||||
| -rw-r--r-- | REORG.TODO/sysdeps/mach/i386/machine-sp.h | 30 | ||||
| -rw-r--r-- | REORG.TODO/sysdeps/mach/i386/syscall.S | 29 | ||||
| -rw-r--r-- | REORG.TODO/sysdeps/mach/i386/sysdep.h | 69 | ||||
| -rw-r--r-- | REORG.TODO/sysdeps/mach/i386/thread_state.h | 42 |
5 files changed, 237 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/i386/machine-lock.h b/REORG.TODO/sysdeps/mach/i386/machine-lock.h new file mode 100644 index 0000000000..540d1a5326 --- /dev/null +++ b/REORG.TODO/sysdeps/mach/i386/machine-lock.h @@ -0,0 +1,67 @@ +/* Machine-specific definition for spin locks. i386 version. + Copyright (C) 1994-2017 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 + <http://www.gnu.org/licenses/>. */ + +#ifndef _MACHINE_LOCK_H +#define _MACHINE_LOCK_H + +/* The type of a spin lock variable. */ + +typedef volatile int __spin_lock_t; + +/* Value to initialize `__spin_lock_t' variables to. */ + +#define __SPIN_LOCK_INITIALIZER 0 + + +#ifndef _EXTERN_INLINE +#define _EXTERN_INLINE __extern_inline +#endif + +/* Unlock LOCK. */ + +_EXTERN_INLINE void +__spin_unlock (__spin_lock_t *__lock) +{ + register int __unlocked; + __asm__ __volatile ("xchgl %0, %1" + : "=&r" (__unlocked), "=m" (*__lock) : "0" (0) + : "memory"); +} + +/* Try to lock LOCK; return nonzero if we locked it, zero if another has. */ + +_EXTERN_INLINE int +__spin_try_lock (__spin_lock_t *__lock) +{ + register int __locked; + __asm__ __volatile ("xchgl %0, %1" + : "=&r" (__locked), "=m" (*__lock) : "0" (1) + : "memory"); + return !__locked; +} + +/* Return nonzero if LOCK is locked. */ + +_EXTERN_INLINE int +__spin_lock_locked (__spin_lock_t *__lock) +{ + return *__lock != 0; +} + + +#endif /* machine-lock.h */ diff --git a/REORG.TODO/sysdeps/mach/i386/machine-sp.h b/REORG.TODO/sysdeps/mach/i386/machine-sp.h new file mode 100644 index 0000000000..264facbf1e --- /dev/null +++ b/REORG.TODO/sysdeps/mach/i386/machine-sp.h @@ -0,0 +1,30 @@ +/* Machine-specific function to return the stack pointer. i386 version. + Copyright (C) 1994-2017 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 + <http://www.gnu.org/licenses/>. */ + +#ifndef _MACHINE_SP_H +#define _MACHINE_SP_H + +/* Return the current stack pointer. */ + +#define __thread_stack_pointer() ({ \ + void *__sp__; \ + __asm__ ("movl %%esp, %0" : "=r" (__sp__)); \ + __sp__; \ +}) + +#endif /* machine-sp.h */ diff --git a/REORG.TODO/sysdeps/mach/i386/syscall.S b/REORG.TODO/sysdeps/mach/i386/syscall.S new file mode 100644 index 0000000000..562aedd175 --- /dev/null +++ b/REORG.TODO/sysdeps/mach/i386/syscall.S @@ -0,0 +1,29 @@ +/* Copyright (C) 1993-2017 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 + <http://www.gnu.org/licenses/>. */ + +#include <sysdep.h> + +ENTRY (syscall) + popl %ecx /* Pop return address into %ecx. */ + popl %eax /* Pop syscall number into %eax. */ + pushl %ecx /* Push back return address. */ + .byte 0x9a, 0, 0, 0, 0, 7, 0 /* lcall $7, $0 -- gas bug */ + popl %ecx /* Pop return address into %ecx. */ + pushl $0 /* Push back dumb syscall number. */ + pushl %ecx /* Push back return address. */ + ret +END (syscall) diff --git a/REORG.TODO/sysdeps/mach/i386/sysdep.h b/REORG.TODO/sysdeps/mach/i386/sysdep.h new file mode 100644 index 0000000000..d5e5f6bcf3 --- /dev/null +++ b/REORG.TODO/sysdeps/mach/i386/sysdep.h @@ -0,0 +1,69 @@ +/* Copyright (C) 1991-2017 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 + <http://www.gnu.org/licenses/>. */ + +#ifndef _MACH_I386_SYSDEP_H +#define _MACH_I386_SYSDEP_H 1 + +/* Defines RTLD_PRIVATE_ERRNO and USE_DL_SYSINFO. */ +#include <dl-sysdep.h> +#include <tls.h> + +#define LOSE asm volatile ("hlt") + +#define SNARF_ARGS(entry_sp, argc, argv, envp) \ + do \ + { \ + char **p; \ + argc = (int) *entry_sp; \ + argv = (char **) (entry_sp + 1); \ + p = argv; \ + while (*p++ != NULL) \ + ; \ + if (p >= (char **) argv[0]) \ + --p; \ + envp = p; \ + } while (0) + +#define CALL_WITH_SP(fn, info, sp) \ + do { \ + void **ptr = (void **) sp; \ + *--(__typeof (info) *) ptr = info; \ + ptr[-1] = ptr; \ + --ptr; \ + asm volatile ("movl %0, %%esp; call %1" : : \ + "g" (ptr), "m" (*(long int *) (fn)) : "%esp"); \ + } while (0) + +#define RETURN_TO(sp, pc, retval) \ + asm volatile ("movl %0, %%esp; jmp %*%1 # %2" \ + : : "g" (sp), "r" (pc), "a" (retval)) + + +#define STACK_GROWTH_DOWN + +/* Get the machine-independent Mach definitions. */ +#include <sysdeps/mach/sysdep.h> + + +/* This should be rearranged, but at the moment this file provides + the most useful definitions for assembler syntax details. */ +#undef ENTRY +#undef ALIGN +#include <sysdeps/unix/i386/sysdep.h> + +#endif /* mach/i386/sysdep.h */ diff --git a/REORG.TODO/sysdeps/mach/i386/thread_state.h b/REORG.TODO/sysdeps/mach/i386/thread_state.h new file mode 100644 index 0000000000..2ad2619e34 --- /dev/null +++ b/REORG.TODO/sysdeps/mach/i386/thread_state.h @@ -0,0 +1,42 @@ +/* Mach thread state definitions for machine-independent code. i386 version. + Copyright (C) 1994-2017 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 + <http://www.gnu.org/licenses/>. */ + +#ifndef _MACH_I386_THREAD_STATE_H +#define _MACH_I386_THREAD_STATE_H 1 + +#include <mach/machine/thread_status.h> + +#define MACHINE_THREAD_STATE_FLAVOR i386_THREAD_STATE +#define MACHINE_THREAD_STATE_COUNT i386_THREAD_STATE_COUNT + +#define machine_thread_state i386_thread_state + +#define PC eip +#define SP uesp +#define SYSRETURN eax + +struct machine_thread_all_state + { + int set; /* Mask of bits (1 << FLAVOR). */ + struct i386_thread_state basic; + struct i386_float_state fpu; + }; + +#include <sysdeps/mach/thread_state.h> + +#endif /* mach/i386/thread_state.h */ |