Currently, the Android linker is placing shared libraries into
a well-known spot in memory. This is interfering with the kernel's
ASLR support.
This change stops forcing non-prelinked libraries into a particular
address space.
Also, get rid of FLAG_PRELINKED. As best I can tell, this flag
is never used.
Change-Id: I527af12fb54f821c2b5ca7693dbf63d022f8f4ae
Prelinked libraries must be mapped to a fixed address. MAP_FIXED is ignored
for non-prelinked libraries (si->base==0)
Signed-off-by: Raghu Gandham <raghu@mips.com>
* commit '962dcb22218a1a6d4ebd05e4fc4a69875d037234':
libc: Fix PTHREAD_RWLOCK_INITIALIZER
Proxy getnameinfo through netd
Updated gcc 4.4.3 IA toolchain doesn't require the .ctors list
Convert cname lenght before use
system_server loads up 87 shared libraries upon start. Running under
valgrind pushes this just over the edge of 96. Increase SO_MAX to 128 to
give us some more headroom.
Change-Id: Iadceb14ab6d9621bdccd292570d50867828057d9
The linker_env_get() method that is used to match an environment
variable was failing due to an incorrect equality check.
This was introduced in git change
be5755969d.
The bug was causing the linker to ignore environment variables such
as LD_LIBRARY_PATH. This issue also affects the linker_env_secure()
path that removes unsafe environment variables, since it would
not match any in the unsecure variable list.
Change-Id: I14228df9252010e9fb4c1862bed5735f23e97aec
The linker_env_get() method that is used to match an environment
variable was failing due to an incorrect equality check.
This was introduced in git change
be5755969d.
The bug was causing the linker to ignore environment variables such
as LD_LIBRARY_PATH. This issue also affects the linker_env_secure()
path that removes unsafe environment variables, since it would
not match any in the unsecure variable list.
Change-Id: I169024de4a005321e768accd38246fc1d717271b
This removes several unsecure environment variables from the
environment block when the program being loaded is setuid. The
list of env. variables is the same than what GLibc uses at this
point.
Change-Id: I456d3ea0880fe0d4de0d3c5dd51871dd36e87fd6
The LD_PRELOAD environment variable allows the user to specify a list of
libraries which should be unconditionally loaded before any others. This
makes possible some useful tricks, such as library interposers.
Change-Id: I433d775ab08ef63a5fbe7b21f87a5642954fc32f
The previous implementation of this flag was broken--it behaved identically
to RTLD_DEFAULT. This adds a proper implementation, which examines the address
of the calling function, and uses it to determine which library to use to begin
the symbol search process.
Change-Id: I2ad2b46363f68932af63a3828a22f9c7987eea67
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
This provides a mini-printf implementation that reduces the
size of the dynamic linker by 25 KB, by preventing the drag of
formatting-related routines from the C library.
Also allow traces to be sent to the log, instead of stdout.
NOTE: You now need to modify Android.mk to enable/disable debug
output.
-- fixes b/2432550
-- ba_prelink is used to manage non-prelinked libraries, hence ba_nonprelink is
a more appropriate name for it
Signed-off-by: Iliyan Malchev <malchev@google.com>
Replicate ARM libc build's HAVE_ARM_TLS_REGISTER preprocessor definition
logic, to ensure that the runtime linker uses the correct codepath for
accessing the TLS address
Merge commit 'fe62de1ad036a1417df44b7b1a7c65cc79dc7091' into eclair-plus-aosp
* commit 'fe62de1ad036a1417df44b7b1a7c65cc79dc7091':
Add support for R_ARM_REL32 to the dynamic linker.
Merge commit 'ebf3ea006e5367fff93d2491eec24c4b1a633805'
* commit 'ebf3ea006e5367fff93d2491eec24c4b1a633805':
Add support for R_ARM_REL32 to the dynamic linker.
Merge commit '34ea5117dbeba41ae5dfdfb2c2ec8cae23388b66' into eclair-mr2-plus-aosp
* commit '34ea5117dbeba41ae5dfdfb2c2ec8cae23388b66':
Add support for R_ARM_REL32 to the dynamic linker.
Merge commit '83362689f5b1f6393d376d242fe29541b63ead2d'
* commit '83362689f5b1f6393d376d242fe29541b63ead2d':
added and modified linker to support SuperH architecture
Add the BSD sys_signame array.
added and modified bionic code to support SuperH architecture
Merge commit '9e78de3e3c90ec3c2970431d8eae7378fdc0dac6'
* commit '9e78de3e3c90ec3c2970431d8eae7378fdc0dac6':
bionic/linker: make the buddy allocator compute max_order on its own
bionic/linker: change the buddy allocator to take a handle to the managed area
Merge commit '70bba5160f83ecd6251c4539f747ae39e9ed469c' into eclair-mr2-plus-aosp
* commit '70bba5160f83ecd6251c4539f747ae39e9ed469c':
bionic/linker: make the buddy allocator compute max_order on its own
bionic/linker: change the buddy allocator to take a handle to the managed area
Merge commit '763ac28357f604e0e4196e0a7ad5b0f5cdcf274a' into eclair-plus-aosp
* commit '763ac28357f604e0e4196e0a7ad5b0f5cdcf274a':
bionic/linker: make the buddy allocator compute max_order on its own
bionic/linker: change the buddy allocator to take a handle to the managed area
Merge commit '763ac28357f604e0e4196e0a7ad5b0f5cdcf274a' into eclair-mr2
* commit '763ac28357f604e0e4196e0a7ad5b0f5cdcf274a':
bionic/linker: make the buddy allocator compute max_order on its own
bionic/linker: change the buddy allocator to take a handle to the managed area
