tequilaOS/platform_bionic
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity
platform_bionic/linker
History
Kalesh Singh 1d3ba112ab bionic: loader: Only zero the last partial page in RW segments 
Only zero the partial page at the end of the segment. There may be
entire pages beyond first page boundary after the segment -- due to
segment padding (VMA extension); but these are not expected to be
touched (faulted).

Do not attempt to zero the extended region past the first partial page,
since doing so may:
  1) Result in a SIGBUS, as the region is not backed by the underlying
     file.
  2) Break the COW backing, faulting in new anon pages for a region
     that will not be used.

Bug: 327600007
Bug: 328797737
Test: Dexcom G7 app
Test: atest -c linker-unit-tests
Test: bootup/idle/system-processes-memory-direct
Change-Id: Ib76b022f94bfc4a4b7eaca2c155af81478741b91
Signed-off-by: Kalesh Singh <kaleshsingh@google.com>
2024-03-13 13:40:28 -07:00
..
arch riscv64: don't use jalr when we can just say call. 2023-05-12 12:56:54 -07:00
testdata bionic: linker-unit-tests: Add crt_pad_segment tests 2024-02-07 16:20:48 -08:00
Android.bp bionic: loader: Only zero the last partial page in RW segments 2024-03-13 13:40:28 -07:00
dlfcn.cpp Revert "Linker support for MTE globals." 2023-12-06 19:01:46 +00:00
ld.config.format.md linker: Cleanup for Android's inclusive language guidance 2020-07-31 11:37:28 +08:00
ld_android.cpp Add the recoverable GWP-ASan feature. 2023-02-02 15:35:25 -08:00
ldd.sh Ignore LD_LIBRARY_PATH when determining file type in ldd. 2021-03-02 16:56:39 +00:00
linked_list.h Keep allocation of tail_ outside of LinkedList 2022-02-01 21:32:30 -08:00
linked_list_test.cpp Switch linker tests to Android.bp. 2019-02-15 14:40:08 -08:00
linker.arm.map Add the recoverable GWP-ASan feature. 2023-02-02 15:35:25 -08:00
linker.cpp Reapply "RELAND: bionic: loader: Extend GNU_RELRO protection" 2024-03-13 13:38:44 -07:00
linker.generic.map Add the recoverable GWP-ASan feature. 2023-02-02 15:35:25 -08:00
linker.h Merge "Remove unused declarations." into main 2023-10-05 23:28:52 +00:00
linker_auxv.cpp linker: add the L3 cache auxv constants. 2023-10-23 18:42:00 -07:00
linker_auxv.h linker: add LD_SHOW_AUXV support. 2023-08-22 14:25:01 -07:00
linker_block_allocator.cpp linker_block_alloctor: Remove 4k page size assumption 2023-08-04 23:08:34 +00:00
linker_block_allocator.h Change default block size alignment to be 4 for memory saving on 32-bit arch 2022-02-03 16:55:37 -08:00
linker_block_allocator_test.cpp Change default block size alignment to be 4 for memory saving on 32-bit arch 2022-02-03 16:55:37 -08:00
linker_cfi.cpp Remove PAGE_SIZE call sites. 2023-06-12 10:59:39 -07:00
linker_cfi.h Switch the rest of our internal headers to #pragma once. 2018-02-13 14:27:17 -08:00
linker_common_types.h Remove unused mips/mips64 code from the linker. 2020-02-13 15:58:48 -08:00
linker_config.cpp Introduce hwasan mode for linker 2023-04-14 01:33:30 -07:00
linker_config.h Introduce hwasan mode for linker 2023-04-14 01:33:30 -07:00
linker_config_test.cpp Introduce hwasan mode for linker 2023-04-14 01:33:30 -07:00
linker_crt_pad_segment_test.cpp bionic: linker-unit-tests: Add crt_pad_segment tests 2024-02-07 16:20:48 -08:00
linker_debug.cpp Create linker_log[_va_list] functions 2020-01-06 16:06:37 -08:00
linker_debug.h Fix bugprone-macro-parentheses warnings 2020-03-04 13:22:05 -08:00
linker_debuggerd.h Add the recoverable GWP-ASan feature. 2023-02-02 15:35:25 -08:00
linker_debuggerd_android.cpp Add API to allow apps to attach extra information to tombstones. 2024-02-13 13:41:12 -08:00
linker_debuggerd_stub.cpp Add the recoverable GWP-ASan feature. 2023-02-02 15:35:25 -08:00
linker_dlwarning.cpp Unify linker files under one license (BSD) 2017-02-15 15:35:33 -08:00
linker_dlwarning.h Switch the rest of our internal headers to #pragma once. 2018-02-13 14:27:17 -08:00
linker_gdb_support.cpp Unify linker files under one license (BSD) 2017-02-15 15:35:33 -08:00
linker_gdb_support.h Switch the rest of our internal headers to #pragma once. 2018-02-13 14:27:17 -08:00
linker_globals.cpp Enable BTI in bionic linker 2020-09-23 17:53:28 -07:00
linker_globals.h Hold the loader mutex in linker_main once constructors are running 2023-07-21 23:14:46 -07:00
linker_gnu_hash.h Neon-optimized version of the GNU symbol calculation 2020-01-13 13:29:25 -08:00
linker_gnu_hash_benchmark.cpp Neon-optimized version of the GNU symbol calculation 2020-01-13 13:29:25 -08:00
linker_gnu_hash_test.cpp Neon-optimized version of the GNU symbol calculation 2020-01-13 13:29:25 -08:00
linker_libc_support.c Unify linker files under one license (BSD) 2017-02-15 15:35:33 -08:00
linker_libcxx_support.cpp Adapt to the new libc++/libc++abi update. 2018-01-08 14:44:42 -08:00
linker_logger.cpp Remove debug.ld.greylist_disabled property 2020-07-30 19:29:17 -07:00
linker_logger.h Remove debug.ld.greylist_disabled property 2020-07-30 19:29:17 -07:00
linker_main.cpp Reapply "RELAND: bionic: loader: Extend LOAD segment VMAs" 2024-03-13 13:37:30 -07:00
linker_main.h Revert "Linker support for MTE globals." 2023-12-06 19:01:46 +00:00
linker_mapped_file_fragment.cpp Remove PAGE_SIZE call sites. 2023-06-12 10:59:39 -07:00
linker_mapped_file_fragment.h Clean up bionic_macros.h a bit. 2018-10-25 11:00:00 -07:00
linker_memory.cpp Add aligned_alloc to linker_memory.cpp 2023-07-24 13:08:34 -07:00
linker_namespaces.cpp linker: Cleanup for Android's inclusive language guidance 2020-07-31 11:37:28 +08:00
linker_namespaces.h linker_namespace: move sonames instead of copying 2022-12-01 16:23:03 +09:00
linker_note_gnu_property.cpp Enable BTI in bionic linker 2020-09-23 17:53:28 -07:00
linker_note_gnu_property.h Enable BTI in bionic linker 2020-09-23 17:53:28 -07:00
linker_note_gnu_property_test.cpp Enable BTI in bionic linker 2020-09-23 17:53:28 -07:00
linker_phdr.cpp bionic: loader: Only zero the last partial page in RW segments 2024-03-13 13:40:28 -07:00
linker_phdr.h Reapply "RELAND: bionic: loader: Extend GNU_RELRO protection" 2024-03-13 13:38:44 -07:00
linker_reloc_iterators.h Optimize GNU hash linking for large inputs 2020-01-13 13:29:25 -08:00
linker_relocate.cpp Reapply "RELAND: bionic: loader: Extend LOAD segment VMAs" 2024-03-13 13:37:30 -07:00
linker_relocate.h Optimize GNU hash linking for large inputs 2020-01-13 13:29:25 -08:00
linker_relocs.h Use the R_RISCV_TLSDESC constant in the linker. 2023-10-18 14:12:31 -07:00
linker_sdk_versions.cpp Add some slack at the end of large allocations when target SDK level < S. 2021-03-05 14:29:17 -08:00
linker_sleb128.h Revert "Linker support for MTE globals." 2023-12-06 19:01:46 +00:00
linker_sleb128_test.cpp Switch linker tests to Android.bp. 2019-02-15 14:40:08 -08:00
linker_soinfo.cpp Don't memset() in the soinfo constructor. 2023-09-29 17:09:02 +00:00
linker_soinfo.h bionic: Introduce ElfReader::ReadPadSegmentNote() 2024-02-06 17:59:01 -08:00
linker_test_globals.cpp bionic: linker-unit-tests: Add crt_pad_segment tests 2024-02-07 16:20:48 -08:00
linker_tls.cpp Add a thread-properties API 2020-08-11 16:51:43 +00:00
linker_tls.h Implement arm64 TLSDESC 2019-01-29 08:33:09 +00:00
linker_translate_path.cpp Refactor translateSystemPathToApexPath 2020-05-19 02:32:07 +02:00
linker_translate_path.h Copy translateSystemPathToApexPath to linker_translate_path.cpp 2020-05-14 22:17:45 +02:00
linker_transparent_hugepage_support.cpp Fix it to call the lambda function 2022-05-19 02:13:39 +00:00
linker_utils.cpp Remove PAGE_SIZE call sites. 2023-06-12 10:59:39 -07:00
linker_utils.h Remove PAGE_SIZE call sites. 2023-06-12 10:59:39 -07:00
linker_utils_test.cpp 16k: Fix linker_utils_test to support 4kb and 16kb page sizes 2023-12-08 00:01:04 +00:00
linker_wrapper.cpp Remove host_bionic_inject 2021-06-14 12:25:05 -07:00
MODULE_LICENSE_BSD Fix/update notices. 2021-02-16 15:06:50 -08:00
NOTICE Update linker/NOTICE. 2024-02-09 09:27:33 -08:00
rt.cpp More dynamic linker cleanup. 2012-10-30 16:35:38 -07:00