aboutsummaryrefslogtreecommitdiff
path: root/linux/include/asm/segment.h
diff options
context:
space:
mode:
authorAndrew Lee <alee14498@protonmail.com>2021-08-15 00:16:45 -0400
committerAndrew Lee <alee14498@protonmail.com>2021-08-15 00:16:45 -0400
commit723428bebe3105ad3c3406e416402d1831b482c4 (patch)
treeff990e306163515973746ddfb261f29ba8765441 /linux/include/asm/segment.h
downloadlinux-0.01-distro-723428bebe3105ad3c3406e416402d1831b482c4.tar.gz
linux-0.01-distro-723428bebe3105ad3c3406e416402d1831b482c4.tar.bz2
linux-0.01-distro-723428bebe3105ad3c3406e416402d1831b482c4.zip
Inital commit
Diffstat (limited to 'linux/include/asm/segment.h')
-rw-r--r--linux/include/asm/segment.h38
1 files changed, 38 insertions, 0 deletions
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));
+}