This change disables all atrace tracing in Zygote immediately after it is
initialized. This is necessary because Zygote has no way to receive
notifications that the enabled trace tags have been changed. Tracing is
re-enabled when other processes fork from Zygote.
Change-Id: If2983858fb0c4890ba9ab041849b1c4d98f66c13
Different kernels seem to handle ADDR_COMPAT_LAYOUT differently,
sometimes passing it to its children, sometimes not. If it's not
passed to its child successfully, we can end up in a restart loop.
Instead of testing for the presence of ADDR_COMPAT_LAYOUT, use an
environment variable instead, which is handled more predictably.
Bug: 8392487
Change-Id: Ia531dd2abb4e1cd46f3430d844e644f53581f530
For the emulator, we want people to see memory as it
actually is, not how we're hacking around buggy apps. Don't
set ADDR_COMPAT_LAYOUT on the emulator.
For reasons that I don't understand, personality(ADDR_COMPAT_LAYOUT)
does not persist across an exec on the emulator. app_main gets
into a tight loop restarting itself because of this. This change
also works around that bug.
Change-Id: Ia73a7d2d623c25cf39d248145d97307945d554da
This seems simpler and more contained, and I think the comment explaining
why hoop-jumping is necessary is a bit clearer now.
Change-Id: Ief4afd7cbb42188ed835fce23e497520bdb753a8
Since LOG_ALWAYS_FATAL is always fatal and code after it is by
definition unreachable, put the call after other diagnostic output.
Change-Id: Ib3a515a04125d8e4f6e8af3a6f59226e8f0dd9cd
executables have calls to some shared libraries without explicitly linking
them. Currently it works as linker links these libraries via dependencies of
other libraries. This is fragile and not the right thing to do.
