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| author | Nick Kralevich <nnk@google.com> | 2013-01-16 16:43:15 -0800 |
|---|---|---|
| committer | Nick Kralevich <nnk@google.com> | 2013-01-16 16:43:58 -0800 |
| commit | d89ce40d8e6b4a6a8074a6fddca9570abbfa4b9d (patch) | |
| tree | b1c1dbd1e99229de5539d76a599a6fe33714faac | |
| parent | 1271cdc1c91c6ae688917bc8f4ae59d2a97b3e99 (diff) | |
| download | bionic-d89ce40d8e6b4a6a8074a6fddca9570abbfa4b9d.zip bionic-d89ce40d8e6b4a6a8074a6fddca9570abbfa4b9d.tar.gz bionic-d89ce40d8e6b4a6a8074a6fddca9570abbfa4b9d.tar.bz2 | |
linker: add -Wl,--exclude-libs,ALL to LDFLAGS
The linker is essentially a shared library, and incorporates
it's own copy of libc. Even though it's unnecessary, currently
/system/bin/linker is exporting various libc symbols (only to
apps which explicitly dlopen /system/bin/linker)
Add --exclude-libs,ALL, which tells the static linker to mark
all of the imported libc symbols as hidden. This reduces the
size of /system/bin/linker from 92K to 67K with no obvious
loss in functionality.
$ adb shell ls -l /system/bin/linker
-rwxrwxrwx root root 92260 2013-01-16 16:52 linker
$ adb shell ls -l /system/bin/linker
-rwxrwxrwx root root 67660 2013-01-16 16:49 linker
Documentation on exclude-libs can be found at
http://sourceware.org/binutils/docs-2.21/ld/Options.html
Change-Id: I4508287770e4b7a845def2e6b4af969f9c866c6a
| -rw-r--r-- | linker/Android.mk | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/linker/Android.mk b/linker/Android.mk index 5fccf9b..c85b09e 100644 --- a/linker/Android.mk +++ b/linker/Android.mk @@ -17,7 +17,7 @@ LOCAL_SRC_FILES:= \ linker_phdr.cpp \ rt.cpp -LOCAL_LDFLAGS := -shared +LOCAL_LDFLAGS := -shared -Wl,--exclude-libs,ALL LOCAL_CFLAGS += -fno-stack-protector \ -Wstrict-overflow=5 \ |