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| author | Andrew Stubbs <ams@codesourcery.com> | 2015-10-27 13:36:47 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2016-01-07 17:27:32 -0500 |
| commit | 5d29eefd6151e1475aeb4d89041313451c02fa41 (patch) | |
| tree | 209261232168156af2594a09d1697c23212e4e95 | |
| parent | 7f49b7c0200e745c5f0d3e9245a6e4590bd57b1d (diff) | |
| download | glibc-5d29eefd6151e1475aeb4d89041313451c02fa41.zip glibc-5d29eefd6151e1475aeb4d89041313451c02fa41.tar.gz glibc-5d29eefd6151e1475aeb4d89041313451c02fa41.tar.bz2 | |
longlong: add SH FDPIC support
| -rw-r--r-- | ChangeLog | 8 | ||||
| -rw-r--r-- | stdlib/longlong.h | 28 |
2 files changed, 36 insertions, 0 deletions
@@ -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++. diff --git a/stdlib/longlong.h b/stdlib/longlong.h index 1bc3e65..4c8d131 100644 --- a/stdlib/longlong.h +++ b/stdlib/longlong.h @@ -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 |