From 723428bebe3105ad3c3406e416402d1831b482c4 Mon Sep 17 00:00:00 2001 From: Andrew Lee Date: Sun, 15 Aug 2021 00:16:45 -0400 Subject: Inital commit --- linux/include/asm/segment.h | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 linux/include/asm/segment.h (limited to 'linux/include/asm/segment.h') diff --git a/linux/include/asm/segment.h b/linux/include/asm/segment.h new file mode 100644 index 0000000..1a53b08 --- /dev/null +++ b/linux/include/asm/segment.h @@ -0,0 +1,38 @@ +extern inline unsigned char get_fs_byte(const char * addr) +{ + unsigned register char _v; + + __asm__ ("movb %%fs:%1,%0":"=r" (_v):"m" (*addr)); + return _v; +} + +extern inline unsigned short get_fs_word(const unsigned short *addr) +{ + unsigned short _v; + + __asm__ ("movw %%fs:%1,%0":"=r" (_v):"m" (*addr)); + return _v; +} + +extern inline unsigned long get_fs_long(const unsigned long *addr) +{ + unsigned long _v; + + __asm__ ("movl %%fs:%1,%0":"=r" (_v):"m" (*addr)); \ + return _v; +} + +extern inline void put_fs_byte(char val,char *addr) +{ +__asm__ ("movb %0,%%fs:%1"::"r" (val),"m" (*addr)); +} + +extern inline void put_fs_word(short val,short * addr) +{ +__asm__ ("movw %0,%%fs:%1"::"r" (val),"m" (*addr)); +} + +extern inline void put_fs_long(unsigned long val,unsigned long * addr) +{ +__asm__ ("movl %0,%%fs:%1"::"r" (val),"m" (*addr)); +} -- cgit v1.2.3