diff options
Diffstat (limited to 'sysdeps/mach/hurd/powerpc')
| -rw-r--r-- | sysdeps/mach/hurd/powerpc/bits/sigcontext.h | 79 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/powerpc/exc2signal.c | 73 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/powerpc/init-first.c | 342 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/powerpc/intr-msg.h | 98 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/powerpc/longjmp-ts.c | 56 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/powerpc/register-dump.h | 119 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/powerpc/sigreturn.c | 185 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/powerpc/static-start.S | 58 | ||||
| -rw-r--r-- | sysdeps/mach/hurd/powerpc/trampoline.c | 256 |
9 files changed, 0 insertions, 1266 deletions
diff --git a/sysdeps/mach/hurd/powerpc/bits/sigcontext.h b/sysdeps/mach/hurd/powerpc/bits/sigcontext.h deleted file mode 100644 index 6e48605177..0000000000 --- a/sysdeps/mach/hurd/powerpc/bits/sigcontext.h +++ /dev/null @@ -1,79 +0,0 @@ -/* Machine-dependent signal context structure for GNU Hurd. PowerPC version. - Copyright (C) 2001,02 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; see the file COPYING.LIB. If - not, see <http://www.gnu.org/licenses/>. */ - -#if !defined _SIGNAL_H && !defined _SYS_UCONTEXT_H -# error "Never use <bits/sigcontext.h> directly; include <signal.h> instead." -#endif - -#ifndef sc_pc - -/* Signal handlers are actually called: - void handler (int sig, int code, struct sigcontext *scp); */ - -/* State of this thread when the signal was taken. */ -struct sigcontext - { - /* These first members are machine-independent. */ - - int sc_onstack; /* Nonzero if running on sigstack. */ - __sigset_t sc_mask; /* Blocked signals to restore. */ - - /* MiG reply port this thread is using. */ - unsigned int sc_reply_port; - - /* Port this thread is doing an interruptible RPC on. */ - unsigned int sc_intr_port; - - /* Error code associated with this signal (interpreted as `error_t'). */ - int sc_error; - - /* All following members are machine-dependent. The rest of this - structure is written to be laid out identically to: - { - struct ppc_thread_state basic; - struct ppc_exc_state exc; - struct ppc_float_state fpu; - } - trampoline.c knows this, so it must be changed if this changes. */ - -#define sc_ppc_thread_state sc_srr0 /* Beginning of correspondence. */ -#define sc_pc sc_srr0 /* For sysdeps/generic/profil-counter.h. */ - unsigned int sc_srr0; - unsigned int sc_srr1; - unsigned int sc_gprs[32]; - unsigned int sc_cr; - unsigned int sc_xer; - unsigned int sc_lr; - unsigned int sc_ctr; - unsigned int sc_mq; - unsigned int sc_ts_pad; - -#define sc_ppc_exc_state sc_dar - unsigned int sc_dar; - unsigned int sc_dsisr; - unsigned int sc_exception; - unsigned int sc_es_pad0; - unsigned int sc_es_pad1[4]; - -#define sc_ppc_float_state sc_fprs[0] - double sc_fprs[32]; - unsigned int sc_fpscr_pad; - unsigned int sc_fpscr; - }; - -#endif /* sc_pc */ diff --git a/sysdeps/mach/hurd/powerpc/exc2signal.c b/sysdeps/mach/hurd/powerpc/exc2signal.c deleted file mode 100644 index 05df67038d..0000000000 --- a/sysdeps/mach/hurd/powerpc/exc2signal.c +++ /dev/null @@ -1,73 +0,0 @@ -/* Translate Mach exception codes into signal numbers. PowerPC version. - Copyright (C) 1991,92,94,96,97,2001 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, see - <http://www.gnu.org/licenses/>. */ - -#include <hurd.h> -#include <hurd/signal.h> -#include <mach/exception.h> - -/* Translate the Mach exception codes, as received in an `exception_raise' RPC, - into a signal number and signal subcode. */ - -void -_hurd_exception2signal (struct hurd_signal_detail *detail, int *signo) -{ - detail->error = 0; - - switch (detail->exc) - { - default: - *signo = SIGIOT; - detail->code = detail->exc; - break; - - case EXC_BAD_ACCESS: - if (detail->exc_code == KERN_PROTECTION_FAILURE) - *signo = SIGSEGV; - else - *signo = SIGBUS; - detail->code = detail->exc_subcode; - detail->error = detail->exc_code; - break; - - /* XXX there has got to be something more here */ - - case EXC_BAD_INSTRUCTION: - *signo = SIGILL; - detail->code = 0; - break; - - case EXC_ARITHMETIC: - *signo = SIGFPE; - detail->code = 0; - break; - - case EXC_EMULATION: - *signo = SIGEMT; - detail->code = 0; - break; - - case EXC_SOFTWARE: - *signo = SIGEMT; - detail->code = 0; - break; - - case EXC_BREAKPOINT: - *signo = SIGTRAP; - detail->code = 0; - } -} diff --git a/sysdeps/mach/hurd/powerpc/init-first.c b/sysdeps/mach/hurd/powerpc/init-first.c deleted file mode 100644 index 9531b5a6e6..0000000000 --- a/sysdeps/mach/hurd/powerpc/init-first.c +++ /dev/null @@ -1,342 +0,0 @@ -/* Initialization code run first thing by the ELF startup code. PowerPC/Hurd. - Copyright (C) 1995-2012 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 <assert.h> -#include <ctype.h> -#include <hurd.h> -#include <stdio.h> -#include <unistd.h> -#include <string.h> -#include <sysdep.h> -#include <set-hooks.h> -#include "hurdstartup.h" -#include "hurdmalloc.h" /* XXX */ - -extern void __mach_init (void); -extern void __init_misc (int, char **, char **); -#ifdef USE_NONOPTION_FLAGS -extern void __getopt_clean_environment (char **); -#endif -#ifndef SHARED -extern void _dl_non_dynamic_init (void) internal_function; -#endif -extern void __libc_global_ctors (void); - -unsigned int __hurd_threadvar_max; -unsigned long int __hurd_threadvar_stack_offset; -unsigned long int __hurd_threadvar_stack_mask; - -#ifndef SHARED -int __libc_enable_secure; -#endif -int __libc_multiple_libcs attribute_hidden = 1; - -extern int __libc_argc attribute_hidden; -extern char **__libc_argv attribute_hidden; -extern char **_dl_argv; - -void *(*_cthread_init_routine) (void); /* Returns new SP to use. */ -void (*_cthread_exit_routine) (int status) __attribute__ ((__noreturn__)); - -#ifndef SHARED -static unsigned int return_address; /* Make init1 return to _start. */ -#endif - -/* Things that want to be run before _hurd_init or much anything else. - Importantly, these are called before anything tries to use malloc. */ -DEFINE_HOOK (_hurd_preinit_hook, (void)); - - -/* We call this once the Hurd magic is all set up and we are ready to be a - Posixoid program. This does the same things the generic version does. */ -static void internal_function -posixland_init (int argc, char **argv, char **envp) -{ - asm ("li 3,0xbb; .long 0"); - __libc_argc = argc; - __libc_argv = argv; - __environ = envp; - -#ifndef SHARED - _dl_non_dynamic_init (); -#endif - __init_misc (argc, argv, envp); - -#ifdef USE_NONOPTION_FLAGS - /* This is a hack to make the special getopt in GNU libc working. */ - __getopt_clean_environment (__environ); -#endif - - /* Initialize ctype data. */ - __ctype_init (); - -#if defined SHARED && !defined NO_CTORS_DTORS_SECTIONS - __libc_global_ctors (); -#endif -} - - -static void -init1 (int *data) -{ - int argc = *data; - char **argv = (char **) &data[1]; - char **envp = &argv[argc + 1]; - struct hurd_startup_data *d; - - while (*envp) - ++envp; - d = (void *) ++envp; - - /* If we are the bootstrap task started by the kernel, - then after the environment pointers there is no Hurd - data block; the argument strings start there. */ - /* OSF Mach starts the bootstrap task with argc == 0. - XXX This fails if a non-bootstrap task gets started - with argc == 0. */ - if (argc && (void *) d != argv[0]) - { - _hurd_init_dtable = d->dtable; - _hurd_init_dtablesize = d->dtablesize; - -#if 0 /* We can't free the old stack because it contains the argument strings. */ - { - /* Check if the stack we are now on is different from - the one described by _hurd_stack_{base,size}. */ - - char dummy; - const vm_address_t newsp = (vm_address_t) &dummy; - - if (d->stack_size != 0 && (newsp < d->stack_base || - newsp - d->stack_base > d->stack_size)) - /* The new stack pointer does not intersect with the - stack the exec server set up for us, so free that stack. */ - __vm_deallocate (__mach_task_self (), d->stack_base, d->stack_size); - } -#endif - } - - if (argc && (void *) d != argv[0] && (d->portarray || d->intarray)) - /* Initialize library data structures, start signal processing, etc. */ - _hurd_init (d->flags, argv, - d->portarray, d->portarraysize, - d->intarray, d->intarraysize); - -#ifndef SHARED - __libc_enable_secure = d->flags & EXEC_SECURE; -#endif -} - - -static inline void -init (int *data) -{ - int argc = *data; - char **argv = (void *) (data + 1); - char **envp = &argv[argc + 1]; - struct hurd_startup_data *d; - unsigned long int threadvars[_HURD_THREADVAR_MAX]; - - /* Provide temporary storage for thread-specific variables on the startup - stack so the cthreads initialization code can use them for malloc et al, - or so we can use malloc below for the real threadvars array. */ - memset (threadvars, 0, sizeof threadvars); - __hurd_threadvar_stack_offset = (unsigned long int) threadvars; - - while (*envp) - ++envp; - d = (void *) ++envp; - - /* The user might have defined a value for this, to get more variables. - Otherwise it will be zero on startup. We must make sure it is set - properly before before cthreads initialization, so cthreads can know - how much space to leave for thread variables. */ - if (__hurd_threadvar_max < _HURD_THREADVAR_MAX) - __hurd_threadvar_max = _HURD_THREADVAR_MAX; - - - /* After possibly switching stacks, call `init1' (above) with the user - code as the return address, and the argument data immediately above - that on the stack. */ - - if (_cthread_init_routine) - { - /* Initialize cthreads, which will allocate us a new stack to run on. */ - void *newsp = (*_cthread_init_routine) (); - struct hurd_startup_data *od; -#ifdef SHARED - void *oldsp; - unsigned int i, data_offset; -#endif - - /* Copy per-thread variables from that temporary - area onto the new cthread stack. */ - memcpy (__hurd_threadvar_location_from_sp (0, newsp), - threadvars, sizeof threadvars); - - /* Copy the argdata from the old stack to the new one. */ - newsp = memcpy (newsp - ((char *) &d[1] - (char *) data), data, - (char *) d - (char *) data); - -#ifdef SHARED - /* And readjust the dynamic linker's idea of where the argument - vector lives. */ - assert (_dl_argv == argv); - _dl_argv = (void *) ((int *) newsp + 1); -#endif - - /* Set up the Hurd startup data block immediately following - the argument and environment pointers on the new stack. */ - od = (newsp + ((char *) d - (char *) data)); - if (!argc || (void *) argv[0] == d) - /* We were started up by the kernel with arguments on the stack. - There is no Hurd startup data, so zero the block. */ - memset (od, 0, sizeof *od); - else - /* Copy the Hurd startup data block to the new stack. */ - *od = *d; - -#ifndef SHARED - asm ("mtlr %0; mr 1,%1; li 0,0; mr 3,%1; stwu 0,-16(1); b init1" - : : "r" (return_address), "r" (newsp)); - (void) init1; /* To avoid `defined but not used' warning. */ - /* NOTREACHED */ -#else - /* Copy the rest of the stack. Don't call a function to do that, - because that will alter the current stack. */ - asm ("mr %0,1" : "=r" (oldsp)); - data_offset = (unsigned int) data - (unsigned int) oldsp; - newsp -= data_offset; - for (i = 0; i < data_offset / 4; i++) - ((unsigned int *)newsp)[i] = ((unsigned int *)oldsp)[i]; - - /* Relocate stack frames. */ - { - unsigned int *oldframe0 = (unsigned int *)oldsp; - unsigned int *oldframe1 = *(unsigned int **)oldframe0; - unsigned int *oldframe2 = *(unsigned int **)oldframe1; - unsigned int *newframe0 = (unsigned int *)newsp; - unsigned int *newframe1 = newframe0 + (unsigned int)(oldframe1 - oldframe0); - unsigned int *newframe2 = newframe1 + (unsigned int)(oldframe2 - oldframe1); - *(unsigned int **)newframe0 = newframe1; - *(unsigned int **)newframe1 = newframe2; - } - - asm ("mr 1,%0; mr 31,%0" : : "r" (newsp)); /* XXX */ - init1 (newsp + data_offset); -#endif - } - else - { - /* We are not using cthreads, so we will have just a single allocated - area for the per-thread variables of the main user thread. */ - unsigned long int *array; - unsigned int i; - - array = malloc (__hurd_threadvar_max * sizeof (unsigned long int)); - if (array == NULL) - __libc_fatal ("Can't allocate single-threaded thread variables."); - - /* Copy per-thread variables from the temporary array into the - newly malloc'd space. */ - memcpy (array, threadvars, sizeof threadvars); - __hurd_threadvar_stack_offset = (unsigned long int) array; - for (i = _HURD_THREADVAR_MAX; i < __hurd_threadvar_max; ++i) - array[i] = 0; - -#ifndef SHARED - asm ("mr 3,%0; mtlr %1; addi 1,3,-16; b init1" - : : "r" (data), "r" (return_address)); - /* NOTREACHED */ -#else - init1 (data); -#endif - } -} - - -/* Do the first essential initializations that must precede all else. */ -static inline void -first_init (void) -{ - /* Initialize data structures so we can do RPCs. */ - __mach_init (); - - RUN_HOOK (_hurd_preinit_hook, ()); -} - -#ifdef SHARED -/* This function is called specially by the dynamic linker to do early - initialization of the shared C library before normal initializers - expecting a Posixoid environment can run. It gets called with the - stack set up just as the user will see it, so it can switch stacks. */ - -void -_dl_init_first (int argc, ...) -{ - asm ("li 3,0xaa; .long 0"); - first_init (); - - init (&argc); -} -#endif - - -#ifdef SHARED -/* The regular posixland initialization is what goes into libc's - normal initializer. */ -/* NOTE! The linker notices the magical name `_init' and sets the DT_INIT - pointer in the dynamic section based solely on that. It is convention - for this function to be in the `.init' section, but the symbol name is - the only thing that really matters!! */ -strong_alias (posixland_init, _init); - - -void -__libc_init_first (int argc, char **argv, char **envp) -{ - /* Everything was done in the shared library initializer, _init. */ -} -#else -strong_alias (posixland_init, __libc_init_first); - - -void -_hurd_stack_setup (int *data) -{ - register unsigned int address; - asm ("mflr %0" : "=r" (address)); - return_address = address; - - first_init (); - - _hurd_startup ((void **) data, &init); -} -#endif - - -/* This function is defined here so that if this file ever gets into - ld.so we will get a link error. Having this file silently included - in ld.so causes disaster, because the _init definition above will - cause ld.so to gain an init function, which is not a cool thing. */ - -void -_dl_start (void) -{ - abort (); -} diff --git a/sysdeps/mach/hurd/powerpc/intr-msg.h b/sysdeps/mach/hurd/powerpc/intr-msg.h deleted file mode 100644 index c567217c9c..0000000000 --- a/sysdeps/mach/hurd/powerpc/intr-msg.h +++ /dev/null @@ -1,98 +0,0 @@ -/* Machine-dependent details of interruptible RPC messaging. PowerPC version. - Copyright (C) 1995,96,97,99,2001 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, see - <http://www.gnu.org/licenses/>. */ - -#define INTR_MSG_TRAP(msg, option, send_size, rcv_size, rcv_name, timeout, notify) \ -({ \ - error_t err; \ - asm (".globl _hurd_intr_rpc_msg_do_trap\n" \ - ".globl _hurd_intr_rpc_msg_in_trap\n" \ - " mr 3, %1\n" \ - " mr 4, %2\n" \ - " mr 5, %3\n" \ - " mr 6, %4\n" \ - " mr 7, %5\n" \ - " mr 8, %6\n" \ - " mr 9, %7\n" \ - " li 0, -25\n" \ - "_hurd_intr_rpc_msg_do_trap: sc\n" \ - "_hurd_intr_rpc_msg_in_trap: mr 3, %0\n" \ - : "=r" (err) \ - : "r" (msg), "r" (option), "r" (send_size), "r" (rcv_size), \ - "r" (rcv_name), "r" (timeout), "r" (notify) \ - : "0", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12"); \ - err; \ -}) - -static void inline -INTR_MSG_BACK_OUT (struct ppc_thread_state *state) -{ - return; -} - -#include "hurdfault.h" - -/* This cannot be an inline function because it calls setjmp. */ -#define SYSCALL_EXAMINE(state, callno) \ -({ \ - u_int32_t *p = (void *) ((state)->srr0 - 4); \ - int result; \ - _hurdsig_catch_memory_fault (p) ? 0 : \ - ({ \ - if (result = (*p == 0x44000002)) \ - /* The PC is just after an `sc' instruction. \ - This is a system call in progress; %r0 holds the call number. */ \ - *(callno) = (state)->r0; \ - _hurdsig_end_catch_fault (); \ - result; \ - }); \ -}) - -struct mach_msg_trap_args - { - /* This is the order of arguments to mach_msg_trap. */ - mach_msg_header_t *msg; - mach_msg_option_t option; - mach_msg_size_t send_size; - mach_msg_size_t rcv_size; - mach_port_t rcv_name; - mach_msg_timeout_t timeout; - mach_port_t notify; - }; - -/* This cannot be an inline function because it calls setjmp. */ -#define MSG_EXAMINE(state, msgid, rcv_name, send_name, option, timeout) \ -({ \ - mach_msg_header_t *msg = (mach_msg_header_t *) (state)->r3; \ - *(option) = (mach_msg_option_t) (state)->r4; \ - *(rcv_name) = (mach_port_t) (state)->r7; \ - *(timeout) = (mach_msg_timeout_t) (state)->r8; \ - (msg == 0) ? \ - ({ \ - *(send_name) = MACH_PORT_NULL; \ - *(msgid) = 0; \ - 0; \ - }) : \ - (_hurdsig_catch_memory_fault (msg) ? -1 : \ - ({ \ - *(send_name) = msg->msgh_remote_port; \ - *(msgid) = msg->msgh_id; \ - _hurdsig_end_catch_fault (); \ - 0; \ - }) \ - ); \ -}) diff --git a/sysdeps/mach/hurd/powerpc/longjmp-ts.c b/sysdeps/mach/hurd/powerpc/longjmp-ts.c deleted file mode 100644 index 88f2f6a149..0000000000 --- a/sysdeps/mach/hurd/powerpc/longjmp-ts.c +++ /dev/null @@ -1,56 +0,0 @@ -/* Perform a `longjmp' on a Mach thread_state. PowerPC version. - Copyright (C) 1991,94,95,97,2001, 2006 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 <hurd/signal.h> -#include <setjmp.h> -#include <jmpbuf-offsets.h> -#include <mach/thread_status.h> - - -/* Set up STATE to do the equivalent of `longjmp (ENV, VAL);'. */ - -void -_hurd_longjmp_thread_state (void *state, jmp_buf env, int val) -{ - struct ppc_thread_state *ts = state; - - /* XXX should we set up the FPRs as well? And how? */ - ts->r1 = env[0].__jmpbuf[JB_GPR1]; - ts->r2 = env[0].__jmpbuf[JB_GPR2]; - ts->r14 = env[0].__jmpbuf[JB_GPRS+0]; - ts->r15 = env[0].__jmpbuf[JB_GPRS+1]; - ts->r16 = env[0].__jmpbuf[JB_GPRS+2]; - ts->r17 = env[0].__jmpbuf[JB_GPRS+3]; - ts->r18 = env[0].__jmpbuf[JB_GPRS+4]; - ts->r19 = env[0].__jmpbuf[JB_GPRS+5]; - ts->r20 = env[0].__jmpbuf[JB_GPRS+6]; - ts->r21 = env[0].__jmpbuf[JB_GPRS+7]; - ts->r22 = env[0].__jmpbuf[JB_GPRS+8]; - ts->r23 = env[0].__jmpbuf[JB_GPRS+9]; - ts->r24 = env[0].__jmpbuf[JB_GPRS+10]; - ts->r25 = env[0].__jmpbuf[JB_GPRS+11]; - ts->r26 = env[0].__jmpbuf[JB_GPRS+12]; - ts->r27 = env[0].__jmpbuf[JB_GPRS+13]; - ts->r28 = env[0].__jmpbuf[JB_GPRS+14]; - ts->r29 = env[0].__jmpbuf[JB_GPRS+15]; - ts->r30 = env[0].__jmpbuf[JB_GPRS+16]; - ts->r31 = env[0].__jmpbuf[JB_GPRS+17]; - ts->cr = env[0].__jmpbuf[JB_CR]; - ts->r3 = val ?: 1; - ts->srr0 = ts->lr = env[0].__jmpbuf[JB_LR]; -} diff --git a/sysdeps/mach/hurd/powerpc/register-dump.h b/sysdeps/mach/hurd/powerpc/register-dump.h deleted file mode 100644 index 80d545e488..0000000000 --- a/sysdeps/mach/hurd/powerpc/register-dump.h +++ /dev/null @@ -1,119 +0,0 @@ -/* Dump registers. PowerPC/Hurd version. - Copyright (C) 1998, 2001, 2006 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 <sys/uio.h> -#include <_itoa.h> - -/* This prints out the information in the following form: */ -static const char dumpform[] = "\ -Register dump:\n\ -fp0-3: 0000030%0000031% 0000032%0000033% 0000034%0000035% 0000036%0000037%\n\ -fp4-7: 0000038%0000039% 000003a%000003b% 000003c%000003d% 000003e%000003f%\n\ -fp8-11: 0000040%0000041% 0000042%0000043% 0000044%0000045% 0000046%0000047%\n\ -fp12-15: 0000048%0000049% 000004a%000004b% 000004c%000004d% 000004e%000004f%\n\ -fp16-19: 0000050%0000051% 0000052%0000053% 0000054%0000055% 0000056%0000057%\n\ -fp20-23: 0000058%0000059% 000005a%000005b% 000005c%000005d% 000005e%000005f%\n\ -fp24-27: 0000060%0000061% 0000062%0000063% 0000064%0000065% 0000066%0000067%\n\ -fp28-31: 0000068%0000069% 000006a%000006b% 000006c%000006d% 000006e%000006f%\n\ -r0 =0000002% sp =0000003% r2 =0000004% r3 =0000005%\n\ -r4 =0000006% r5 =0000007% r6 =0000008% r7 =0000009% sr0=0000000% sr1=0000001%\n\ -r8 =000000a% r9 =000000b% r10=000000c% r11=000000d% cr=0000022% xer=0000023%\n\ -r12=000000e% r13=000000f% r14=0000010% r15=0000011% lr=0000024% ctr=0000025%\n\ -r16=0000012% r17=0000013% r18=0000014% r19=0000015% mq=0000026% fcr=0000071%\n\ -r20=0000016% r21=0000017% r22=0000018% r23=0000019% dar=0000028% dsi=0000029%\n\ -r24=000001a% r25=000001b% r26=000001c% r27=000001d% exc=000002a%\n\ -r28=000001e% r29=000001f% r30=0000020% r31=0000021%\n\ -"; - -/* Most of the fields are self-explanatory. 'sr0' is the next - instruction to execute, from SRR0, which may have some relationship - with the instruction that caused the exception. 'r3*' is the value - that will be returned in register 3 when the current system call - returns. 'sr1' is SRR1, bits 16-31 of which are copied from the MSR: - - 16 - External interrupt enable - 17 - Privilege level (1=user, 0=supervisor) - 18 - FP available - 19 - Machine check enable (if clear, processor locks up on machine check) - 20 - FP exception mode bit 0 (FP exceptions recoverable) - 21 - Single-step trace enable - 22 - Branch trace enable - 23 - FP exception mode bit 1 - 25 - exception prefix (if set, exceptions are taken from 0xFFFnnnnn, - otherwise from 0x000nnnnn). - 26 - Instruction address translation enabled. - 27 - Data address translation enabled. - 30 - Exception is recoverable (otherwise, don't try to return). - 31 - Little-endian mode enable. - - 'Trap' is the address of the exception: - - 00200 - Machine check exception (memory parity error, for instance) - 00300 - Data access exception (memory not mapped, see dsisr for why) - 00400 - Instruction access exception (memory not mapped) - 00500 - External interrupt - 00600 - Alignment exception (see dsisr for more information) - 00700 - Program exception (illegal/trap instruction, FP exception) - 00800 - FP unavailable (should not be seen by user code) - 00900 - Decrementer exception (for instance, SIGALRM) - 00A00 - I/O controller interface exception - 00C00 - System call exception (for instance, kill(3)). - 00E00 - FP assist exception (optional FP instructions, etc.) - - 'dar' is the memory location, for traps 00300, 00400, 00600, 00A00. - 'dsisr' has the following bits under trap 00300: - 0 - direct-store error exception - 1 - no page table entry for page - 4 - memory access not permitted - 5 - trying to access I/O controller space or using lwarx/stwcx on - non-write-cached memory - 6 - access was store - 9 - data access breakpoint hit - 10 - segment table search failed to find translation (64-bit ppcs only) - 11 - I/O controller instruction not permitted - For trap 00400, the same bits are set in SRR1 instead. - For trap 00600, bits 12-31 of the DSISR set to allow emulation of - the instruction without actually having to read it from memory. -*/ - -#define xtoi(x) (x >= 'a' ? x + 10 - 'a' : x - '0') - -static void -register_dump (int fd, struct sigcontext *ctx) -{ - char buffer[sizeof(dumpform)]; - char *bufferpos; - unsigned regno; - unsigned *regs = (unsigned *)(&ctx->sc_srr0); - - memcpy(buffer, dumpform, sizeof(dumpform)); - - /* Generate the output. */ - while ((bufferpos = memchr (buffer, '%', sizeof(dumpform)))) - { - regno = xtoi (bufferpos[-1]) | xtoi (bufferpos[-2]) << 4; - memset (bufferpos-2, '0', 3); - _itoa_word (regs[regno], bufferpos+1, 16, 0); - } - - /* Write the output. */ - write (fd, buffer, sizeof(buffer) - 1); -} - -#define REGISTER_DUMP \ - register_dump (fd, ctx) diff --git a/sysdeps/mach/hurd/powerpc/sigreturn.c b/sysdeps/mach/hurd/powerpc/sigreturn.c deleted file mode 100644 index 18107090b9..0000000000 --- a/sysdeps/mach/hurd/powerpc/sigreturn.c +++ /dev/null @@ -1,185 +0,0 @@ -/* Return from signal handler for Hurd. PowerPC version. - Copyright (C) 1996,97,98,2001 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, see - <http://www.gnu.org/licenses/>. */ - -#include <hurd.h> -#include <hurd/signal.h> -#include <hurd/threadvar.h> -#include <stdlib.h> - -int -__sigreturn (struct sigcontext *scp) -{ - struct hurd_sigstate *ss; - mach_port_t *reply_port; - - if (scp == NULL || (scp->sc_mask & _SIG_CANT_MASK)) - { - errno = EINVAL; - return -1; - } - - ss = _hurd_self_sigstate (); - __spin_lock (&ss->lock); - - /* Restore the set of blocked signals, and the intr_port slot. */ - ss->blocked = scp->sc_mask; - ss->intr_port = scp->sc_intr_port; - - /* Check for pending signals that were blocked by the old set. */ - if (ss->pending & ~ss->blocked) - { - /* There are pending signals that just became unblocked. Wake up the - signal thread to deliver them. But first, squirrel away SCP where - the signal thread will notice it if it runs another handler, and - arrange to have us called over again in the new reality. */ - ss->context = scp; - __spin_unlock (&ss->lock); - __msg_sig_post (_hurd_msgport, 0, 0, __mach_task_self ()); - /* If a pending signal was handled, sig_post never returned. */ - __spin_lock (&ss->lock); - ss->context = NULL; - } - - if (scp->sc_onstack) - { - ss->sigaltstack.ss_flags &= ~SS_ONSTACK; /* XXX threadvars */ - /* XXX cannot unlock until off sigstack */ - abort (); - } - else - __spin_unlock (&ss->lock); - - /* Destroy the MiG reply port used by the signal handler, and restore the - reply port in use by the thread when interrupted. */ - reply_port = - (mach_port_t *) __hurd_threadvar_location (_HURD_THREADVAR_MIG_REPLY); - if (*reply_port) - { - mach_port_t port = *reply_port; - - /* Assigning MACH_PORT_DEAD here tells libc's mig_get_reply_port not to - get another reply port, but avoids mig_dealloc_reply_port trying to - deallocate it after the receive fails (which it will, because the - reply port will be bogus, whether we do this or not). */ - *reply_port = MACH_PORT_DEAD; - - __mach_port_destroy (__mach_task_self (), port); - } - *reply_port = scp->sc_reply_port; - - /* Restore FPU state. */ -#define restore_fpr(n) \ - asm volatile ("lfd " #n ",%0(31)" : : "i" (n * 4)) - - asm volatile ("mr 31,%0" : : "r" (scp->sc_fprs)); - - /* Restore the floating-point control/status register. */ - asm volatile ("lfd 0,256(31)"); - asm volatile ("mtfsf 0xff,0"); - - /* Restore floating-point registers. */ - restore_fpr (0); - restore_fpr (1); - restore_fpr (2); - restore_fpr (3); - restore_fpr (4); - restore_fpr (5); - restore_fpr (6); - restore_fpr (7); - restore_fpr (8); - restore_fpr (9); - restore_fpr (10); - restore_fpr (11); - restore_fpr (12); - restore_fpr (13); - restore_fpr (14); - restore_fpr (15); - restore_fpr (16); - restore_fpr (17); - restore_fpr (18); - restore_fpr (19); - restore_fpr (20); - restore_fpr (21); - restore_fpr (22); - restore_fpr (23); - restore_fpr (24); - restore_fpr (25); - restore_fpr (26); - restore_fpr (27); - restore_fpr (28); - restore_fpr (29); - restore_fpr (30); - restore_fpr (31); - - /* Load all the registers from the sigcontext. */ -#define restore_gpr(n) \ - asm volatile ("lwz " #n ",%0(31)" : : "i" (n * 4)) - - asm volatile ("addi 31,31,-188"); /* r31 = scp->gprs */ - - /* Restore the special purpose registers. */ - asm volatile ("lwz 0,128(31); mtcr 0"); - asm volatile ("lwz 0,132(31); mtxer 0"); - asm volatile ("lwz 0,136(31); mtlr 0"); - asm volatile ("lwz 0,-8(31); mtctr 0"); /* XXX this is the PC */ -#if 0 - asm volatile ("lwz 0,144(31); mtmq %0"); /* PPC601 only */ -#endif - - /* Restore the normal registers. */ - restore_gpr (0); - restore_gpr (1); - restore_gpr (2); - restore_gpr (3); - restore_gpr (4); - restore_gpr (5); - restore_gpr (6); - restore_gpr (7); - restore_gpr (8); - restore_gpr (9); - restore_gpr (10); - restore_gpr (11); - restore_gpr (12); - restore_gpr (13); - restore_gpr (14); - restore_gpr (15); - restore_gpr (16); - restore_gpr (17); - restore_gpr (18); - restore_gpr (19); - restore_gpr (20); - restore_gpr (21); - restore_gpr (22); - restore_gpr (23); - restore_gpr (24); - restore_gpr (25); - restore_gpr (26); - restore_gpr (27); - restore_gpr (28); - restore_gpr (29); - restore_gpr (30); - restore_gpr (31); - - /* Return. */ - asm volatile ("bctr"); /* XXX CTR is not restored! */ - - /* NOTREACHED */ - return -1; -} - -weak_alias (__sigreturn, sigreturn) diff --git a/sysdeps/mach/hurd/powerpc/static-start.S b/sysdeps/mach/hurd/powerpc/static-start.S deleted file mode 100644 index 7c48875476..0000000000 --- a/sysdeps/mach/hurd/powerpc/static-start.S +++ /dev/null @@ -1,58 +0,0 @@ -/* Startup code for statically linked Hurd/PowerPC binaries. - Copyright (C) 1998,2001, 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, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> - - /* These are the various addresses we require. */ - .section ".rodata" - .align 2 - weak_extern(__libc_csu_init) - weak_extern(__libc_csu_fini) -L(start_addresses): - .long _SDA_BASE_ - .long JUMPTARGET(main) - .long JUMPTARGET(__libc_csu_init) - .long JUMPTARGET(__libc_csu_fini) - ASM_SIZE_DIRECTIVE(L(start_addresses)) - - .section ".text" -ENTRY(_start) - /* Save the stack pointer to pass to _hurd_stack_setup. */ - mr r3,r1 - /* Set up an initial stack frame. */ - li r0,0 - stwu r0,-16(r1) - /* Call _hurd_stack_setup. */ - bl JUMPTARGET(_hurd_stack_setup) - /* Pass the argument data to __libc_start_main. */ - addi r9,r1,16 - /* Clear the LR. */ - li r0,0 - mtlr r0 - /* Set r13 to point at the 'small data area', and put the address of - start_addresses in r8... */ - lis r8,L(start_addresses)@ha - lwzu r13,L(start_addresses)@l(r8) - /* and continue in libc-start, in glibc. */ - b JUMPTARGET(__libc_start_main) -END(_start) - -/* Define a symbol for the first piece of initialized data. */ - .section ".data" -__data_start: -weak_alias (__data_start, data_start) diff --git a/sysdeps/mach/hurd/powerpc/trampoline.c b/sysdeps/mach/hurd/powerpc/trampoline.c deleted file mode 100644 index da59a25fe0..0000000000 --- a/sysdeps/mach/hurd/powerpc/trampoline.c +++ /dev/null @@ -1,256 +0,0 @@ -/* Set thread_state for sighandler, and sigcontext to recover. For PowerPC. - Copyright (C) 1994,1995,1996,1997,1998,1999,2001,2005 - 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 <hurd/signal.h> -#include <hurd/userlink.h> -#include <thread_state.h> -#include <assert.h> -#include <errno.h> -#include "hurdfault.h" -#include <intr-msg.h> - -struct sigcontext * -_hurd_setup_sighandler (struct hurd_sigstate *ss, __sighandler_t handler, - int signo, struct hurd_signal_detail *detail, - volatile int rpc_wait, - struct machine_thread_all_state *state) -{ - void trampoline (void); - void rpc_wait_trampoline (void); - void *volatile sigsp; - struct sigcontext *scp; - - if (ss->context) - { - /* We have a previous sigcontext that sigreturn was about - to restore when another signal arrived. We will just base - our setup on that. */ - if (! _hurdsig_catch_memory_fault (ss->context)) - { - memcpy (&state->basic, &ss->context->sc_ppc_thread_state, - sizeof (state->basic)); - memcpy (&state->exc, &ss->context->sc_ppc_exc_state, - sizeof (state->exc)); - memcpy (&state->fpu, &ss->context->sc_ppc_float_state, - sizeof (state->fpu)); - state->set = (1 << PPC_THREAD_STATE) | (1 << PPC_EXCEPTION_STATE) - | (1 << PPC_FLOAT_STATE); - } - } - - if (! machine_get_basic_state (ss->thread, state)) - return NULL; - - if ((ss->actions[signo].sa_flags & SA_ONSTACK) && - !(ss->sigaltstack.ss_flags & (SS_DISABLE|SS_ONSTACK))) - { - sigsp = ss->sigaltstack.ss_sp + ss->sigaltstack.ss_size; - ss->sigaltstack.ss_flags |= SS_ONSTACK; - /* XXX need to set up base of new stack for - per-thread variables, cthreads. */ - } - else - sigsp = (char *) state->basic.SP; - - /* Set up the sigcontext structure on the stack. This is all the stack - needs, since the args are passed in registers (below). */ - sigsp -= sizeof (*scp); - scp = sigsp; - sigsp -= 16; /* Reserve some space for a stack frame. */ - - if (_hurdsig_catch_memory_fault (scp)) - { - /* We got a fault trying to write the stack frame. - We cannot set up the signal handler. - Returning NULL tells our caller, who will nuke us with a SIGILL. */ - return NULL; - } - else - { - int ok; - - /* Set up the sigcontext from the current state of the thread. */ - - scp->sc_onstack = ss->sigaltstack.ss_flags & SS_ONSTACK ? 1 : 0; - - /* struct sigcontext is laid out so that starting at sc_srr0 - mimics a struct ppc_thread_state. */ - memcpy (&scp->sc_ppc_thread_state, - &state->basic, sizeof (state->basic)); - - /* struct sigcontext is laid out so that starting at sc_dar - mimics a struct ppc_exc_state. */ - ok = machine_get_state (ss->thread, state, PPC_EXCEPTION_STATE, - &state->exc, &scp->sc_ppc_exc_state, - sizeof (state->exc)); - - /* struct sigcontext is laid out so that starting at sc_fprs[0] - mimics a struct ppc_float_state. */ - if (ok) - ok = machine_get_state (ss->thread, state, PPC_FLOAT_STATE, - &state->fpu, &scp->sc_ppc_float_state, - sizeof (state->fpu)); - - _hurdsig_end_catch_fault (); - - if (!ok) - return NULL; - } - - /* Modify the thread state to call the trampoline code on the new stack. */ - if (rpc_wait) - { - /* The signalee thread was blocked in a mach_msg_trap system call, - still waiting for a reply. We will have it run the special - trampoline code which retries the message receive before running - the signal handler. - - To do this we change the OPTION argument in its registers to - enable only message reception, since the request message has - already been sent. */ - - /* The system call arguments are stored in consecutive registers - starting with r3. */ - struct mach_msg_trap_args *args = (void *) &state->basic.r3; - - if (_hurdsig_catch_memory_fault (args)) - { - /* Faulted accessing ARGS. Bomb. */ - return NULL; - } - - assert (args->option & MACH_RCV_MSG); - /* Disable the message-send, since it has already completed. The - calls we retry need only wait to receive the reply message. */ - args->option &= ~MACH_SEND_MSG; - - /* Limit the time to receive the reply message, in case the server - claimed that `interrupt_operation' succeeded but in fact the RPC - is hung. */ - args->option |= MACH_RCV_TIMEOUT; - args->timeout = _hurd_interrupted_rpc_timeout; - - _hurdsig_end_catch_fault (); - - state->basic.PC = (int) rpc_wait_trampoline; - /* After doing the message receive, the trampoline code will need to - update the r3 value to be restored by sigreturn. To simplify - the assembly code, we pass the address of its slot in SCP to the - trampoline code in r10. */ - state->basic.r10 = (long int) &scp->sc_gprs[3]; - /* We must preserve the mach_msg_trap args in r3..r9. - Pass the handler args to the trampoline code in r11..r13. */ - state->basic.r11 = signo; - state->basic.r12 = detail->code; - state->basic.r13 = (int) scp; - } - else - { - state->basic.PC = (int) trampoline; - state->basic.r3 = signo; - state->basic.r4 = detail->code; - state->basic.r5 = (int) scp; - } - - state->basic.r1 = (int) sigsp; /* r1 is the stack pointer. */ - - /* We pass the handler function to the trampoline code in ctr. */ - state->basic.ctr = (int) handler; - /* In r15, we store the address of __sigreturn itself, - for the trampoline code to use. */ - state->basic.r15 = (int) &__sigreturn; - /* In r16, we save the SCP value to pass to __sigreturn - after the handler returns. */ - state->basic.r16 = (int) scp; - - /* In r3, we store a pointer to the registers in STATE so that the - trampoline code can load the registers from that. For some reason, - thread_set_state doesn't set all registers. */ - state->basic.r17 = state->basic.r3; /* Store the real r3 in r17. */ - state->basic.r3 = (int) &state->basic.r0; - - return scp; -} - -/* The trampoline code follows. This used to be located inside - _hurd_setup_sighandler, but was optimized away by gcc 2.95. */ - -/* This function sets some registers which the trampoline code uses - and which are not automatically set by thread_set_state. - In r3 we have a pointer to the registers in STATE. */ -asm ("trampoline_load_registers:\n" - "lwz 17,68(3)\n" /* The real r3. */ - "lwz 4,16(3)\n" - "lwz 5,20(3)\n" - "lwz 6,24(3)\n" - "lwz 7,28(3)\n" - "lwz 8,32(3)\n" - "lwz 9,36(3)\n" - "lwz 10,40(3)\n" - "lwz 11,44(3)\n" - "lwz 12,48(3)\n" - "lwz 13,52(3)\n" - "lwz 14,56(3)\n" - "lwz 15,60(3)\n" - "lwz 16,64(3)\n" - "mr 3,17\n" - "blr\n"); - -asm ("rpc_wait_trampoline:\n"); - /* This is the entry point when we have an RPC reply message to receive - before running the handler. The MACH_MSG_SEND bit has already been - cleared in the OPTION argument in our registers. For our convenience, - r10 points to the sc_regs[3] member of the sigcontext (saved r3). */ - -asm (/* Retry the interrupted mach_msg system call. */ - "bl trampoline_load_registers\n" - "li 0, -25\n" /* mach_msg_trap */ - "sc\n" - /* When the sigcontext was saved, r3 was MACH_RCV_INTERRUPTED. But - now the message receive has completed and the original caller of - the RPC (i.e. the code running when the signal arrived) needs to - see the final return value of the message receive in r3. So - store the new r3 value into the sc_regs[3] member of the sigcontext - (whose address is in r10 to make this code simpler). */ - "stw 3, 0(10)\n" - /* Since the argument registers needed to have the mach_msg_trap - arguments, we've stored the arguments to the handler function - in registers r11..r13 of the state structure. */ - "mr 3,11\n" - "mr 4,12\n" - "mr 5,13\n"); - -asm ("trampoline:\n"); - /* Entry point for running the handler normally. The arguments to the - handler function are already in the standard registers: - - r3 SIGNO - r4 SIGCODE - r5 SCP - - r16 also contains SCP; this value is callee-saved (and so should not get - clobbered by running the handler). We use this saved value to pass to - __sigreturn, so the handler can clobber the argument registers if it - likes. */ -asm ("bl trampoline_load_registers\n" - "bctrl\n" /* Call the handler function. */ - "mtctr 15\n" /* Copy &__sigreturn to CTR. */ - "mr 3,16\n" /* Copy the saved SCP to r3. */ - "bctr\n" /* Call __sigreturn (SCP). */ - ); |