openrisc: Add thread-local storage (TLS) support
Historically OpenRISC GCC has reserved r10 which we now use to hold the thread pointer for thread-local storage (TLS). Signed-off-by:Christian Svensson <blue@cmd.nu> Signed-off-by:
Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Tested-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
Stafford Horne <shorne@gmail.com>
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