summaryrefslogtreecommitdiff
path: root/bsd-user/i386/target_arch_thread.h
diff options
context:
space:
mode:
Diffstat (limited to 'bsd-user/i386/target_arch_thread.h')
-rw-r--r--bsd-user/i386/target_arch_thread.h47
1 files changed, 47 insertions, 0 deletions
diff --git a/bsd-user/i386/target_arch_thread.h b/bsd-user/i386/target_arch_thread.h
new file mode 100644
index 0000000000..e65e476f75
--- /dev/null
+++ b/bsd-user/i386/target_arch_thread.h
@@ -0,0 +1,47 @@
+/*
+ * i386 thread support
+ *
+ * Copyright (c) 2013 Stacey D. Son
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _TARGET_ARCH_THREAD_H_
+#define _TARGET_ARCH_THREAD_H_
+
+/* Compare to vm_machdep.c cpu_set_upcall_kse() */
+static inline void target_thread_set_upcall(CPUX86State *regs, abi_ulong entry,
+ abi_ulong arg, abi_ulong stack_base, abi_ulong stack_size)
+{
+ /* XXX */
+}
+
+static inline void target_thread_init(struct target_pt_regs *regs,
+ struct image_info *infop)
+{
+ regs->esp = infop->start_stack;
+ regs->eip = infop->entry;
+
+ /*
+ * SVR4/i386 ABI (pages 3-31, 3-32) says that when the program starts %edx
+ * contains a pointer to a function which might be registered using
+ * `atexit'. This provides a mean for the dynamic linker to call DT_FINI
+ * functions for shared libraries that have been loaded before the code
+ * runs.
+ *
+ * A value of 0 tells we have no such handler.
+ */
+ regs->edx = 0;
+}
+
+#endif /* !_TARGET_ARCH_THREAD_H_ */