There were mainly two problems with shebangs:
- Suffix arguments handling e.g. '#!/bin/sh -x'
- Recursive handling e.g. script1 fetchs '#!/path/to/script2'
and script2 itself has a shebang
- (did I say two?) running shebang would replace argv[optind] instead
of appending e.g. script with '#!/bin/sh' and running './script -c'
would run '/bin/sh -c' instead of '/bin/sh ./script -c'
There also are two places where this needs parsing:
- starting a fresh program from mcexec
- starting a new program from execve in mcexec
The first was easy to fix as we already had argv around, but the later
required a new way to transfer the 'new argv elements from the script'
to mckernel to append before its argv -- it used to be 'desc->shell_path'
but that was no longer used at some point and just one keyword is not
enough to handle this properly.
This commit does:
- Refactors the lookup_path + load_elf_desc that was only done at most
twice in its own function that loops indefinitely and use that in both
situations described above
- Transmits the argv addition in the transfer to mckernel after the
desc; mckernel allocates 4 pages (hardcoded) for the descs and we will
hopefully have room for the script arguments on top of that... (there is
no guard!!!)
- Change flatten_strings to allow prepending a flattened string instead
of a single string.
Note that the flatten_string change also brought in a difference in the
format, to have the full length embedded within the string, the latest
slot that used to be zeroes now contains the position of the end of the
buffer (where the last+1 string would be if there had been one)
This required a trivial change in mckernel prepare args function that
used this property for no real reason.
Hopefully things work™, this probably warrants adding a couple of new
ostests...
- create a couple of scripts with recursive invocation/arguments and
check their own argv.
- execute "mcexec script args" and "mcexec sh -c 'script args'"
Change-Id: I2cf9cde5c07c9293f730de89c9731bd93dbfa789
Refs: #1115
This includes the following fix:
send_syscall, do_syscall: remove argument pid
Fujitsu: POSTK_TEMP_FIX_26
Refs: #1165
Change-Id: I702362c07a28f507a5e43dd751949aefa24bc8c0
Defining C structures for the following objects:
(1) Remote and local context
(2) Stack of system call arguments / return values
Change-Id: Iafbb6c795bd765e3c78c54a255d8a1e4d4536288
(1) Add --enable-uti option. The binary-patch library is
preloaded with this option.
(2) Binary-patching is done by syscall_intercept developed by Intel
This commit includes the following fixes:
(1) Fix do_exit() and terminate() handling
(2) Fix timing of killing mcexec threads when McKernel thread calls terminate()
Change-Id: Iad885e1e5540ed79f0808debd372463e3b8fecea
(1) Masquerade clv
(2) Fix timeout
(3) Let mcexec thread with the same tid as McKernel thread migrating
to Linux handles the migration request
(4) Call create_tracer() before creating proxy related objects
Change-Id: I6b2689b70db49827f10aa7d5a4c581aa81319b55
(1) Cherry-pick of 644afd8b45fc253ad7b90849e99aae354bac5b17
(2) Pass length to functions with arguments of variable length
* POSTK_DEBUG_ARCH_DEP_38
(3) Separate architecture dependent functions/structures
* POSTK_DEBUG_ARCH_DEP_34
(4) Fix include path
* POSTK_DEBUG_ARCH_DEP_76
(5) Include config.h
* POSTK_DEBUG_ARCH_DEP_33
Some are important, e.g. the seemingly harmless braces around if with dprintf,
since that dprintf is defined as empty, will screw things up and grab the next
line
Change-Id: Ie5e1cf813178ad708ff42ae5e477fbc96034471c
This helps catching errors like accessing a field that no longer exists
in a debug print that wasn't compiled...
Change-Id: If6c862ea2b866f819195aae93c7fd68e610fe48e
