add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/x86/boot/tty.c
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@@ -1,11 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /* -*- linux-c -*- ------------------------------------------------------- *
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  *
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  *   Copyright (C) 1991, 1992 Linus Torvalds
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  *   Copyright 2007 rPath, Inc. - All Rights Reserved
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  *   Copyright 2009 Intel Corporation; author H. Peter Anvin
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- *
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- *   This file is part of the Linux kernel, and is made available under
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- *   the terms of the GNU General Public License version 2.
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  *
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  * ----------------------------------------------------------------------- */
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9
 
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@@ -27,7 +25,7 @@
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  * error during initialization.
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  */
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-static void __attribute__((section(".inittext"))) serial_putchar(int ch)
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+static void __section(".inittext") serial_putchar(int ch)
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 {
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 	unsigned timeout = 0xffff;
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@@ -37,7 +35,7 @@
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 	outb(ch, early_serial_base + TXR);
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 }
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-static void __attribute__((section(".inittext"))) bios_putchar(int ch)
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+static void __section(".inittext") bios_putchar(int ch)
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 {
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 	struct biosregs ireg;
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@@ -49,7 +47,7 @@
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 	intcall(0x10, &ireg, NULL);
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 }
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-void __attribute__((section(".inittext"))) putchar(int ch)
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+void __section(".inittext") putchar(int ch)
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 {
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 	if (ch == '\n')
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 		putchar('\r');	/* \n -> \r\n */
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@@ -60,7 +58,7 @@
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 		serial_putchar(ch);
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 }
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-void __attribute__((section(".inittext"))) puts(const char *str)
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+void __section(".inittext") puts(const char *str)
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 {
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 	while (*str)
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 		putchar(*str++);