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-rw-r--r--sysdeps/l4/hurd/ia32/pt-machdep.c20
-rw-r--r--sysdeps/l4/hurd/ia32/pt-setup.c117
-rw-r--r--sysdeps/l4/hurd/ia32/signal-dispatch-lowlevel.c213
3 files changed, 0 insertions, 350 deletions
diff --git a/sysdeps/l4/hurd/ia32/pt-machdep.c b/sysdeps/l4/hurd/ia32/pt-machdep.c
deleted file mode 100644
index dbf5cd7..0000000
--- a/sysdeps/l4/hurd/ia32/pt-machdep.c
+++ /dev/null
@@ -1,20 +0,0 @@
-/* Machine dependent pthreads code. Hurd/i386 version.
- Copyright (C) 2000 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 Library General Public License as
- published by the Free Software Foundation; either version 2 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-/* Nothing to do. */
diff --git a/sysdeps/l4/hurd/ia32/pt-setup.c b/sysdeps/l4/hurd/ia32/pt-setup.c
deleted file mode 100644
index 579905c..0000000
--- a/sysdeps/l4/hurd/ia32/pt-setup.c
+++ /dev/null
@@ -1,117 +0,0 @@
-/* Setup thread stack. Viengoos/i386 version.
- Copyright (C) 2000, 2002, 2008 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 Library General Public License as
- published by the Free Software Foundation; either version 2 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
-
-#include <l4.h>
-
-#include <pt-internal.h>
-#include <hurd/thread.h>
-#include <hurd/exceptions.h>
-
-/* The stack layout used on the i386 is:
-
- -----------------
- | ARG |
- -----------------
- | START_ROUTINE |
- -----------------
- | Return address |
- ----------------- <- %ebp
- | Frame pointer |
- -----------------
-
- We do the following: setup the stack to return to the entry routine.
-
-
-*/
-
-/* The stack contains:
-
- arg
- start_routine
- 0 <- fake return address
- C entry_point
-*/
-extern uintptr_t _pthread_entry_point;
-__asm__ ("\n\
- .globl _pthread_entry_point, __pthread_entry_point\n\
-_pthread_entry_point:\n\
-__pthread_entry_point:\n\
- pushl $0\n\
- popf\n\
-\n\
- xor %ebp, %ebp\n\
- ret\n");
-
-/* Set up the stack for THREAD, such that it appears as if
- START_ROUTINE and ARG were passed to the new thread's entry-point.
- Return the stack pointer for the new thread. We also take the
- opportunity to install THREAD in our utcb. */
-static void *
-stack_setup (struct __pthread *thread,
- void *(*start_routine)(void *), void *arg,
- void (*entry_point)(void *(*)(void *), void *))
-{
- uintptr_t *top;
-
- /* Calculate top of the new stack. */
- top = (uintptr_t *) ((uintptr_t) thread->stackaddr + thread->stacksize);
-
- /* Align on 0x10 for MMX operations. */
- top = (uintptr_t) top & ~0xf;
-
- if (start_routine)
- {
- /* Set up call frame. */
- *--top = (uintptr_t) arg; /* Argument to START_ROUTINE. */
- *--top = (uintptr_t) start_routine;
- *--top = 0; /* Fake return address. */
- *--top = (uintptr_t) entry_point;
- }
-
- return top;
-}
-
-int
-__pthread_setup (struct __pthread *thread,
- void (*entry_point)(void *(*)(void *), void *),
- void *(*start_routine)(void *), void *arg)
-{
- thread->mcontext.pc = (void *) &_pthread_entry_point;
- thread->mcontext.sp = (void *) stack_setup (thread, start_routine, arg,
- entry_point);
-
- if (__pthread_num_threads == 1)
- return 0;
-
- assert (! ADDR_IS_VOID (thread->exception_area[0]));
-
- struct exception_page *exception_page = thread->exception_area_va;
-
- /* SP is set to the end of the exception area minus one word, which
- is the location of the exception page. */
- exception_page->exception_handler_sp
- = (uintptr_t) thread->exception_area_va + EXCEPTION_AREA_SIZE;
- exception_page->exception_handler_sp -= sizeof (void *);
- * (void **) exception_page->exception_handler_sp = thread->exception_area_va;
-
- exception_page->exception_handler_ip = (uintptr_t) &exception_handler_entry;
- exception_page->exception_handler_end = (uintptr_t) &exception_handler_end;
-
- return 0;
-}
diff --git a/sysdeps/l4/hurd/ia32/signal-dispatch-lowlevel.c b/sysdeps/l4/hurd/ia32/signal-dispatch-lowlevel.c
deleted file mode 100644
index 37ef821..0000000
--- a/sysdeps/l4/hurd/ia32/signal-dispatch-lowlevel.c
+++ /dev/null
@@ -1,213 +0,0 @@
-/* signal-dispatch-lowlevel.c - ia32 specific signal handling functions.
- Copyright (C) 2008 Free Software Foundation, Inc.
- Written by Neal H. Walfield <neal@gnu.org>.
-
- This file is part of the GNU Hurd.
-
- The GNU Hurd 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 3 of
- the License, or (at your option) any later version.
-
- The GNU Hurd 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 this program. If not, see
- <http://www.gnu.org/licenses/>. */
-
-#include <pt-internal.h>
-#include <sig-internal.h>
-
-#include <hurd/thread.h>
-#include <pthread.h>
-#include <stdint.h>
-#include <atomic.h>
-
-extern char _signal_dispatch_entry;
-/* - 0(%esp) a pointer to the thread's struct signal_state.
- - 4(%esp) a pointer to a siginfo_t.
- - 8(%esp) is a pointer to the ss_flags field (or NULL).
- - 12(%esp)+4 is the value of the sp when the thread was interrupted (intr_sp)
- - 0(intr_sp) is the value of the ip when the thread was interrupted.
- - 16(%esp) - 16 byte register save area
-*/
-__asm__ ("\n\
- .globl _signal_dispatch_entry\n\
-_signal_dispatch_entry:\n\
- /* Save caller saved registers (16 bytes). */\n\
- mov %eax, 16(%esp)\n\
- mov %ecx, 16+4(%esp)\n\
- mov %edx, 16+8(%esp)\n\
- pushf\n\
- popl %eax\n\
- mov %eax, 16+12(%esp)\n\
-\n\
- /* Reset EFLAGS. */\n\
- cld\n\
- call signal_dispatch\n\
-\n\
- /* Get the original stack and begin restoration. */\n\
- mov 12(%esp), %edx\n\
-\n\
- /* Move the saved registers to the user stack. */\n\
- sub $16, %edx\n\
- /* eax. */\n\
- mov 16+0(%esp), %ecx\n\
- mov %ecx, 0(%edx)\n\
- /* ecx. */\n\
- mov 16+4(%esp), %ecx\n\
- mov %ecx, 4(%edx)\n\
- /* edx. */\n\
- mov 16+8(%esp), %ecx\n\
- mov %ecx, 8(%edx)\n\
- /* eflags. */\n\
- mov 16+12(%esp), %ecx\n\
- mov %ecx, 12(%edx)\n\
-\n\
- /* Get the pointer to the sigaltstack flags. */\n\
- mov 8(%esp), %ecx\n\
-\n\
- /* Restore the user stack. */\n\
- mov %edx, %esp\n\
-\n\
- /* Clear the SA_ONSTACK flag. */\n\
- and %ecx, %ecx\n\
- jz after_clear\n\
- lock; and $~1, 0(%ecx)\n\
-after_clear:\n\
-\n\
- /* Restore eflags, the scratch regs and the original sp and ip. */\n\
- popl %eax\n\
- popl %ecx\n\
- popl %edx\n\
- popf\n\
- ret\n");
-
-extern char _signal_dispatch_entry_self;
-/* - 0(%esp) is the return address (we ignore it)
- - 4(%esp) is the sp to load
-
- Since we are returning to signal_dispatch_lowlevel's caller, we
- also need to restore its frame pointer. */
-__asm__ ("\n\
- .globl _signal_dispatch_entry_self\n\
-_signal_dispatch_entry_self:\n\
- mov 0(%ebp), %ebp\n\
- mov 4(%esp), %esp\n\
- jmp _signal_dispatch_entry\n");
-
-void
-signal_dispatch_lowlevel (struct signal_state *ss, pthread_t tid,
- siginfo_t si)
-{
- assert (pthread_mutex_trylock (&ss->lock) == EBUSY);
-
- struct __pthread *thread = __pthread_getid (tid);
-
- bool self = tid == pthread_self ();
-
- uintptr_t intr_sp;
-
- if (self)
- {
- /* The return address is just before the first argument. */
- intr_sp = (uintptr_t) &ss - 4;
- assert (* (void **) intr_sp == __builtin_return_address (0));
- }
- else
- {
- struct hurd_thread_exregs_in in;
- memset (&in, 0, sizeof (in));
- struct hurd_thread_exregs_out out;
-
- error_t err;
- err = rm_thread_exregs (ADDR_VOID, thread->object,
- HURD_EXREGS_STOP | HURD_EXREGS_ABORT_IPC
- | HURD_EXREGS_GET_REGS,
- in, &out);
- if (err)
- panic ("Failed to modify thread " ADDR_FMT,
- ADDR_PRINTF (thread->object));
-
- intr_sp = out.sp;
-
- /* Push the ip on the user stack. */
- intr_sp -= 4;
- * (uintptr_t *) intr_sp = out.ip;
- }
-
- bool altstack = false;
- uintptr_t sp;
- if (! (ss->actions[si.si_signo - 1].sa_flags & SA_ONSTACK)
- || (ss->stack.ss_flags & SS_DISABLE)
- || (ss->stack.ss_flags & SS_ONSTACK))
- {
- assert (! self);
- sp = intr_sp;
- }
- else
- {
- /* The stack grows down. */
- sp = (uintptr_t) ss->stack.ss_sp + ss->stack.ss_size;
-
- /* We know intimately that SS_ONSTACK is the least significant
- bit. */
- assert (SS_ONSTACK == 1);
- atomic_bit_set (&ss->stack.ss_flags, 0);
-
- altstack = true;
- }
-
- /* Set up the call frame for a call to signal_dispatch_entry. */
-
- /* Allocate a siginfo structure on the stack. */
- sp = sp - sizeof (siginfo_t);
- siginfo_t *sip = (void *) sp;
- /* Copy the user supplied values. */
- *sip = si;
-
- /* Add space for the 4 caller saved registers. */
- sp -= 4 * sizeof (uintptr_t);
-
- /* Save the interrupted sp. */
- sp -= 4;
- * (uintptr_t *) sp = intr_sp;
-
- /* Address of the ss_flags. */
- sp -= 4;
- if (altstack)
- * (uintptr_t *) sp = (uintptr_t) &ss->stack.ss_flags;
- else
- * (uintptr_t *) sp = 0;
-
- /* Push the parameters to signal_dispatch. */
-
- /* signal info structure. */
- sp -= 4;
- * (uintptr_t *) sp = (uintptr_t) sip;
-
- /* The ss. */
- sp -= 4;
- * (uintptr_t *) sp = (uintptr_t) ss;
-
- pthread_mutex_transfer_np (&ss->lock, tid);
-
- if (self)
- ((void (*) (uintptr_t)) &_signal_dispatch_entry_self) ((uintptr_t) sp);
- else
- {
- struct hurd_thread_exregs_in in;
- struct hurd_thread_exregs_out out;
-
- in.sp = sp;
- in.ip = (uintptr_t) &_signal_dispatch_entry;
-
- rm_thread_exregs (ADDR_VOID, thread->object,
- HURD_EXREGS_SET_SP_IP
- | HURD_EXREGS_START | HURD_EXREGS_ABORT_IPC,
- in, &out);
- }
-}
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