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x86: add --warn-shared-textrel 

Emit a warning when the static linker detects a shared library
has text relocations. Text relocations make it harder to
share pages across processes, and make it harder to use
certain memory protection features in, for example, SELinux.

This warning will turn into an error in a future change
(via --fatal-warnings)

Change-Id: I2d169c7ce3600d02e25591f3ec15aba363730298
References: http://www.akkadia.org/drepper/textrelocs.html
This commit is contained in:
Nick Kralevich 2012-10-19 13:36:49 -07:00
parent 2e0d1af767
commit 4f2f16da14
1 changed files with 1 additions and 0 deletions
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core/combo/TARGET_linux-x86.mk
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@ -141,6 +141,7 @@ TARGET_GLOBAL_LDFLAGS += -m32
TARGET_GLOBAL_LDFLAGS += -Wl,-z,noexecstack
TARGET_GLOBAL_LDFLAGS += -Wl,-z,relro -Wl,-z,now
TARGET_GLOBAL_LDFLAGS += -Wl,--warn-shared-textrel
TARGET_GLOBAL_LDFLAGS += -Wl,--gc-sections
TARGET_C_INCLUDES := \