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Issue #20162: Fix an alignment issue in the siphash24() hash function which

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caused a crash on PowerPC 64-bit (ppc64).
This commit is contained in:
Victor Stinner 2014-02-01 03:38:56 +01:00
parent 606ab031c1
commit a17b6bb5fe
2 changed files with 4 additions and 1 deletions
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3
Misc/NEWS
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@ -10,6 +10,9 @@ Release date: 2014-02-09
Core and Builtins Core and Builtins
----------------- -----------------
- Issue #20162: Fix an alignment issue in the siphash24() hash function which
caused a crash on PowerPC 64-bit (ppc64).
Library Library
------- -------

2
Python/pyhash.c
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@ -399,7 +399,7 @@ siphash24(const void *src, Py_ssize_t src_sz) {
case 7: pt[6] = m[6]; case 7: pt[6] = m[6];
case 6: pt[5] = m[5]; case 6: pt[5] = m[5];
case 5: pt[4] = m[4]; case 5: pt[4] = m[4];
case 4: *((PY_UINT32_T*)&pt[0]) = *((PY_UINT32_T*)&m[0]); break; case 4: Py_MEMCPY(pt, m, sizeof(PY_UINT32_T)); break;
case 3: pt[2] = m[2]; case 3: pt[2] = m[2];
case 2: pt[1] = m[1]; case 2: pt[1] = m[1];
case 1: pt[0] = m[0]; case 1: pt[0] = m[0];