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alpha: Add tls-macros.h.

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This commit is contained in:
Richard Henderson 2012-02-08 16:59:11 -08:00
parent 23a7453bbd
commit dd0c700a97
2 changed files with 27 additions and 0 deletions
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2
ChangeLog.alpha
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@ -1,5 +1,7 @@
2012-02-08 Richard Henderson <rth@twiddle.net>
* sysdeps/alpha/tls-macros.h: New file.
* sysdeps/unix/sysv/linux/alpha/getitimer.S: Don't check HAVE_ELF.
* sysdeps/unix/sysv/linux/alpha/getrusage.S: Likewise.
* sysdeps/unix/sysv/linux/alpha/gettimeofday.S: Likewise.

25
sysdeps/alpha/tls-macros.h Normal file
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/* Macros to support TLS testing in times of missing compiler support. */
extern void *__tls_get_addr (void *);
# define TLS_GD(x) \
({ void *__result; \
asm ("lda %0, " #x "($gp) !tlsgd" : "=r" (__result)); \
__tls_get_addr (__result); })
# define TLS_LD(x) \
({ void *__result; \
asm ("lda %0, " #x "($gp) !tlsldm" : "=r" (__result)); \
__result = __tls_get_addr (__result); \
asm ("lda %0, " #x "(%0) !dtprel" : "+r" (__result)); \
__result; })
# define TLS_IE(x) \
({ long ofs; \
asm ("ldq %0, " #x "($gp) !gottprel" : "=r"(ofs)); \
__builtin_thread_pointer () + ofs; })
# define TLS_LE(x) \
({ void *__result = __builtin_thread_pointer (); \
asm ("lda %0, " #x "(%0) !tprel" : "+r" (__result)); \
__result; })