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author | Stefan Liebler <stli@linux.ibm.com> | 2021-06-29 11:37:28 +0200 |
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committer | Stefan Liebler <stli@linux.ibm.com> | 2021-07-01 16:46:59 +0200 |
commit | 7c45df18e1c524775a88c1e6fc7eac0049b3de83 (patch) | |
tree | 0dac930cc98dd8ecaffd9e11e2bf5d4130241ad8 /sysdeps/m68k/coldfire/fpu/libm-test-ulps-name | |
parent | ba436665b1c9e8bcef76947a4b59706bc64ceead (diff) | |
download | glibc-7c45df18e1c524775a88c1e6fc7eac0049b3de83.tar.gz glibc-7c45df18e1c524775a88c1e6fc7eac0049b3de83.tar.xz glibc-7c45df18e1c524775a88c1e6fc7eac0049b3de83.zip |
s390: Fix MEMCHR_Z900_G5 ifunc-variant if n>=0x80000000 [BZ #28024]
On s390 (31bit), the pointer to the first byte after s always wraps around with n >= 0x80000000 and can lead to stop searching before end of s. Thus this patch just use NULL as byte after s in this case and the srst instruction stops searching with "not found" when wrapping around from top address to zero. This is observable with testcase string/test-memchr starting with commit "String: Add overflow tests for strnlen, memchr, and strncat [BZ #27974]" https://sourceware.org/git/?p=glibc.git;a=commit;h=da5a6fba0febbfc90896ce1b2eb75c6d8a88a72d
Diffstat (limited to 'sysdeps/m68k/coldfire/fpu/libm-test-ulps-name')
0 files changed, 0 insertions, 0 deletions