Small Device C Compiler (SDCC) / Bugs / #2391 gcc-torture-execute-divcmp-1 segfaults on Cygwin64

#2391 gcc-torture-execute-divcmp-1 segfaults on Cygwin64

Status: closed-fixed

Owner: Ben Shi

Labels: None

Category: other

Priority: 5

Updated: 2015-08-18

Created: 2015-06-21

Creator: Philipp Klaus Krause

Private: No

In sdcc revision #9253, the regression test gcc-torture-execute-divcmp-1 gives me a segfault in the z80-related ports and the stm8 port. I used current 64-bit Cygwin on Windows 7.

Philipp

P.S.: We already have open bugreports #2277 and #2345 for a similar issue on OpenBSD and NetBSD.

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Ben Shi - 2015-06-21

I have also attached the error log in bug #2345.

Last edit: Ben Shi 2015-07-22

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Ben Shi - 2015-07-22

This issue only happened on cygwin64, while cygwin32 is normal.

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Ben Shi - 2015-07-22

summary: gcc-torture-execute-divcmp-1 segfaults on Cygwin --> gcc-torture-execute-divcmp-1 segfaults on Cygwin64
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Philipp Klaus Krause - 2015-08-16

Hmm, could this be a stack size issue? Windows has a smaller default stack size limit compared to most Unices these days.

Philipp

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- Ben Shi - 2015-08-17
  
  By modification of src/Makefile.in
  
  LDFLAGS = -Wl,--stack,4194304
  
  there is no crash any more.
  
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Ben Shi - 2015-08-17

Though the single crashed test case passed, I will do a full regression test with this flag.

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Ben Shi - 2015-08-17

assigned_to: Ben Shi
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Ben Shi - 2015-08-18

Fixed in reversion #9300.

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Ben Shi - 2015-08-18

status: open --> closed-fixed
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gcc-torture-execute-divcmp-1 segfaults on Cygwin64

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#2391 gcc-torture-execute-divcmp-1 segfaults on Cygwin64

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