GDB looks for specific opcode sequences when trying to recognize a stack
frame as a signal trampoline. The sequences it looks for happen to be those
created when SA_RESTORER is set, since glibc always sets a restorer. This
patch does the same here, so that the trampolines can be correctly identified.
Change-Id: I0ac574a68818cb24d939c3527f3aaeb04b853d04
... by removing extraneous NULL check, as free() already does it.
Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Change-Id: I0445f35c7ad0a049a0e4aee1fbe002ed2f13b94b
... by removing unneeded NULL check, as free() already does it.
By the way, we don't need to set a stack variable back to NULL.
Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Change-Id: Id90eb8f042b5c922c5ff139b11ff8366fb404566
... by removing unneeded NULL check, as free() already does it.
By the way, we don't need to set a stack variable back to NULL.
Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Change-Id: Id1f72e872f73366dddcea4abc75885a3d9a318c6
... by checking most probable condition first (elements do differ)
Change-Id: I424eab9c32a6d9eb82b686ca04025ec8c9097035
Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Typo assigned prefixlen1 twice instead of to the two different variables
for comparison and difference computation.
Change-Id: I6631b8269ca6aae264c8d7d414127b756838df96
Now that the system properly uses shared condvars when needed, we
can enable the use of private futexes for them too.
Change-Id: Icf8351fc0a2309f764cba45c65bc3af047720cdf
This does not change the implementation of conditional variables
since we're waiting for other system components to properly use
pthread_condattr_init/setpshared before that.
Also remove an obsolete x86 source file.
Change-Id: Ia3e3fbac35b87a534fb04d4381c3c66b975bc8f7
Note that this does not change the implementation of conditional variables
which still use shared futexes, independent on the flags being selected.
This will be fixed in a later patch, once our system is modified to use
pthread_condattr_setpshared(attr, PTHREAD_PROCESS_SHARED) properly.
Change-Id: I935de50964cd41f97a13dbfd6626d3407b0406c3
dladdr() is a GNU extension function, which allows the caller to retrieve
symbol information for a specified memory address. It is useful for things
like generating backtrace information at runtime.
Change-Id: I3a1def1a6c9c666d93e1e97b7d260dfa5b9b79a9
