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This is a spiffied-up rebase of a bunch of intermediate changes, presented
as a whole because it is, surprisingly, less confusing that way. The basic
idea is to separate the guts code into categories ranging from generic
stuff that can be the same everywhere and specific variants. The big scary
one is the Darwin support, which actually seems to run okay on 64-bit OS X
10.6. (No other variants were tested.) The other example given is support
for the old clone() syscall on RHEL 4, which affects some wrlinux use cases.
There's a few minor cleanup bits here, such as a function with inconsistent
calling conventions, but nothing really exciting.
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be out of sync in a very inconvenient way.
Changes include:
* Some whitespace fixes, also move the pseudo_variables definition
into pseudo_util.c since it's not used anywhere else.
* Further improvements in the fork() support:
We now recognize both positive and negative forms of PSEUDO_DISABLED,
so we can distinguish between "it was removed from the environment
by env -i" (restore the old value) and "it was intentionally turned
off" (the new value wins).
* clone(2) support. This is a little primitive, and programs might still
fail horribly due to clone's semantics, but at least it's there and
passes easy test cases.
Plus a big patch from Mark Hatle:
Cleanup fork/clone and PSEUDO_DISABLED
guts/fork.c:
* cleanup function and make it more robust
* be sure to call pseudo_setupenv prior to pseudo_client_reset
to match exec behavior
pseudo_wrappers.c:
* fix mismatched type in execl_to_v call via typecast
* Simplify fork call via single call to wrap_fork()
* be sure to save pseudo_disabled
* be sure to call pseudo_setupenv prior to pseudo_client_reset
to match exec behavior
tests:
* Add a test of whether pseudo can be disabled/enabled on a fork.
Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
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are generated from text files and templates, making it now (we hope)
impossible for the list of strings to get out of sync with the
enum.
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Peter Seebach