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longlong: add SH FDPIC support

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Andrew Stubbs 2015-10-27 13:36:47 +00:00 committed by Mike Frysinger
parent 7f49b7c020
commit 5d29eefd61
2 changed files with 36 additions and 0 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2016-01-07 Daniel Jacobowitz <dan@codesourcery.com>
Joseph Myers <joseph@codesourcery.com>
Mark Shinwell <shinwell@codesourcery.com>
Andrew Stubbs <ams@codesourcery.com>
Rich Felker <dalias@libc.org>
* longlong.h (udiv_qrnnd): Add FDPIC compatible version for SH.
2016-01-07 Richard Henderson <rth@redhat.com>
* longlong.h [__alpha] (umul_ppmm): Disable for c++.

28
stdlib/longlong.h
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@ -1102,6 +1102,33 @@ extern UDItype __umulsidi3 (USItype, USItype);
/* This is the same algorithm as __udiv_qrnnd_c. */
#define UDIV_NEEDS_NORMALIZATION 1
#ifdef __FDPIC__
/* FDPIC needs a special version of the asm fragment to extract the
code address from the function descriptor. __udiv_qrnnd_16 is
assumed to be local and not to use the GOT, so loading r12 is
not needed. */
#define udiv_qrnnd(q, r, n1, n0, d) \
do { \
extern UWtype __udiv_qrnnd_16 (UWtype, UWtype) \
__attribute__ ((visibility ("hidden"))); \
/* r0: rn r1: qn */ /* r0: n1 r4: n0 r5: d r6: d1 */ /* r2: __m */ \
__asm__ ( \
"mov%M4 %4,r5\n" \
" swap.w %3,r4\n" \
" swap.w r5,r6\n" \
" mov.l @%5,r2\n" \
" jsr @r2\n" \
" shll16 r6\n" \
" swap.w r4,r4\n" \
" mov.l @%5,r2\n" \
" jsr @r2\n" \
" swap.w r1,%0\n" \
" or r1,%0" \
: "=r" (q), "=&z" (r) \
: "1" (n1), "r" (n0), "rm" (d), "r" (&__udiv_qrnnd_16) \
: "r1", "r2", "r4", "r5", "r6", "pr", "t"); \
} while (0)
#else
#define udiv_qrnnd(q, r, n1, n0, d) \
do { \
extern UWtype __udiv_qrnnd_16 (UWtype, UWtype) \
@ -1121,6 +1148,7 @@ extern UDItype __umulsidi3 (USItype, USItype);
: "1" (n1), "r" (n0), "rm" (d), "r" (&__udiv_qrnnd_16) \
: "r1", "r2", "r4", "r5", "r6", "pr", "t"); \
} while (0)
#endif /* __FDPIC__ */
#define UDIV_TIME 80