From 505475812ae7d3c35782221fb3e254fe85d44a50 Mon Sep 17 00:00:00 2001 From: pumnflqv2 Date: Tue, 5 Jul 2022 05:05:15 +0800 Subject: [PATCH] ADD file via upload --- cur/linux/include/asm/segment.h | 65 +++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 cur/linux/include/asm/segment.h diff --git a/cur/linux/include/asm/segment.h b/cur/linux/include/asm/segment.h new file mode 100644 index 0000000..94dd102 --- /dev/null +++ b/cur/linux/include/asm/segment.h @@ -0,0 +1,65 @@ +static inline unsigned char get_fs_byte(const char * addr) +{ + unsigned register char _v; + + __asm__ ("movb %%fs:%1,%0":"=r" (_v):"m" (*addr)); + return _v; +} + +static inline unsigned short get_fs_word(const unsigned short *addr) +{ + unsigned short _v; + + __asm__ ("movw %%fs:%1,%0":"=r" (_v):"m" (*addr)); + return _v; +} + +static inline unsigned long get_fs_long(const unsigned long *addr) +{ + unsigned long _v; + + __asm__ ("movl %%fs:%1,%0":"=r" (_v):"m" (*addr)); \ + return _v; +} + +static inline void put_fs_byte(char val,char *addr) +{ +__asm__ ("movb %0,%%fs:%1"::"r" (val),"m" (*addr)); +} + +static inline void put_fs_word(short val,short * addr) +{ +__asm__ ("movw %0,%%fs:%1"::"r" (val),"m" (*addr)); +} + +static inline void put_fs_long(unsigned long val,unsigned long * addr) +{ +__asm__ ("movl %0,%%fs:%1"::"r" (val),"m" (*addr)); +} + +/* + * Someone who knows GNU asm better than I should double check the followig. + * It seems to work, but I don't know if I'm doing something subtly wrong. + * --- TYT, 11/24/91 + * [ nothing wrong here, Linus ] + */ + +static inline unsigned long get_fs() +{ + unsigned short _v; + __asm__("mov %%fs,%%ax":"=a" (_v):); + return _v; +} + +static inline unsigned long get_ds() +{ + unsigned short _v; + __asm__("mov %%ds,%%ax":"=a" (_v):); + return _v; +} + +static inline void set_fs(unsigned long val) +{ + __asm__("mov %0,%%fs"::"a" ((unsigned short) val)); +} +