Good morning!
I'm trying to debug an embedded Linux box that does not come with an
strace, so I figured I'd cross compile strace for it. It is not going so
well. Any help appreciated.
First obstacle:
mmsghdr.c:97:14: error: 'IOV_MAX' undeclared here (not in a function); did you
mean 'INT_MAX'?
int namelen[IOV_MAX];
^~~~~~~
INT_MAX
(This is gcc 7.1 for arm-linux-gnueabi, with binutils 2.29 and a freshly
compiled glibc 2.26).
So I add an
#ifndef IOV_MAX
#define IOV_MAX 1024
#endif
Same issue in msghdr.c.
So far so good, but the next one is stumping me:
pathtrace.c: In function 'pathtrace_match_set':
pathtrace.c:166:7: error: 'SEN_dup2' undeclared (first use in this function);
did you mean 'sys_dup2'?
case SEN_dup2:
^~~~~~~~
sys_dup2
pathtrace.c:166:7: note: each undeclared identifier is reported only once for
each function it appears in
pathtrace.c:167:7: error: 'SEN_dup3' undeclared (first use in this function);
did you mean 'SEN_dup2'?
case SEN_dup3:
^~~~~~~~
SEN_dup2
(and so on for dozens of syscalls). Where are these symbols supposed to come
from? What am I doing wrong?
For the record: compiling strace natively for x86_64 works with the same glibc.
Kernel headers are from Linux 4.14 for both ARM and x86_64.
Thanks,
Felix
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