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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /arch/um/kernel/exec.c
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/um/kernel/exec.c')
-rw-r--r--arch/um/kernel/exec.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c
new file mode 100644
index 0000000000..827a0d3fa5
--- /dev/null
+++ b/arch/um/kernel/exec.c
@@ -0,0 +1,51 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
+ */
+
+#include <linux/stddef.h>
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/ptrace.h>
+#include <linux/sched/mm.h>
+#include <linux/sched/task.h>
+#include <linux/sched/task_stack.h>
+#include <linux/slab.h>
+#include <asm/current.h>
+#include <asm/processor.h>
+#include <linux/uaccess.h>
+#include <as-layout.h>
+#include <mem_user.h>
+#include <registers.h>
+#include <skas.h>
+#include <os.h>
+
+void flush_thread(void)
+{
+ void *data = NULL;
+ int ret;
+
+ arch_flush_thread(&current->thread.arch);
+
+ ret = unmap(&current->mm->context.id, 0, TASK_SIZE, 1, &data);
+ if (ret) {
+ printk(KERN_ERR "%s - clearing address space failed, err = %d\n",
+ __func__, ret);
+ force_sig(SIGKILL);
+ }
+ get_safe_registers(current_pt_regs()->regs.gp,
+ current_pt_regs()->regs.fp);
+
+ __switch_mm(&current->mm->context.id);
+}
+
+void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
+{
+ PT_REGS_IP(regs) = eip;
+ PT_REGS_SP(regs) = esp;
+ clear_thread_flag(TIF_SINGLESTEP);
+#ifdef SUBARCH_EXECVE1
+ SUBARCH_EXECVE1(regs->regs);
+#endif
+}
+EXPORT_SYMBOL(start_thread);