[#6251] pread/pwrite arent decoded correctly by strace
Submitted By: Mike Frysinger
Open Date
2010-09-10 20:52:27 Close Date
2010-09-12 03:40:36
Priority:
Medium Assignee:
Mike Frysinger
Status:
Closed Fixed In Release:
N/A
Found In Release:
2009R1.1-RC4 Release:
Category:
N/A Board:
N/A
Processor:
ALL Silicon Revision:
Is this bug repeatable?:
Yes Resolution:
Fixed
Uboot version or rev.:
Toolchain version or rev.:
trunk
App binary format:
N/A
Summary: pread/pwrite arent decoded correctly by strace
Details:
probably been like this forever, and pread()/pwrite() appear to work correctly, but they're just getting decoded incorrectly by strace ...
$ cat test.c
main(){pwrite(1, "foo", 3, 3);}
on the board:
$ strace /a.out
pwrite(1, "foo", 3, 12884901888) = -1 ESPIPE (Illegal seek)
the return value is fine, but that last argument appears to be decoded incorrectly (maybe a 64bit vs 32bit issue).
Follow-ups
--- Mike Frysinger 2010-09-12 03:40:36
cross-compiling logic for endian handling of long long values is screwed up. it
is forced to "no" which breaks probably all little endian systems.
once that is fixed, pread/pwrite decode correctly. this probably affects all
system calls which take 64bit arguments.
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