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Author	SHA1	Message	Date
Dmitriy Ivanov	f4cb631364	Add IFUNC support for arm64 and IRELATIVE reloc There are number of changes in the way IFUNC related relocations are done: 1. IRELATIVE relocations are now supported for x86/x86_64 and arm64. 2. IFUNC relocations are now relying on static linker to generate them in correct order - this removes necessety of additional relocation pass for ifuncs. 3. Related to 2: rela?.dyn relocations are preformed before .plt ones. 4. Ifunc are resolved on symbol lookup this approach allowed to avoid mprotect(PROT_WRITE) call on r-x program segments. Bug: 17399706 Bug: 17177284 (cherry picked from commit 9aea164457c269c475592da36b4655d45f55c7bc) Change-Id: Ie19d900fc203beb93faf8943b0d06d534a6de4ad	2014-10-01 16:04:31 -07:00
Dmitriy Ivanov	bd321c1106	Run constructors before resolving ifunc functions Bug: 17177284 (cherry picked from commit 9598b8c415e2fa9f240508185fe8c964b83f538d) Change-Id: I2c9631ee1cd77f8cf95ec0216a35b605c8786454	2014-10-01 15:51:47 -07:00
Brigid Smith	31b88da843	Added test for ifunc support in dynamic linker. ifuncs now work in i386 and x86_64 when called in the same library as well as in a different library. Bug:6657325 (cherry picked from commit c5a13efa9bc4264be0a9a9e37c00633af01584ed) Change-Id: I321d780bc2f9bd1baa749e1acacd2683aefe827b	2014-10-01 15:50:38 -07:00

Author

SHA1

Message

Date

Dmitriy Ivanov

f4cb631364

Add IFUNC support for arm64 and IRELATIVE reloc

There are number of changes in the way IFUNC related relocations are done:
 1. IRELATIVE relocations are now supported for x86/x86_64 and arm64.
 2. IFUNC relocations are now relying on static linker to generate
    them in correct order - this removes necessety of additional
    relocation pass for ifuncs.
 3. Related to 2: rela?.dyn relocations are preformed before .plt ones.
 4. Ifunc are resolved on symbol lookup this approach allowed to avoid
    mprotect(PROT_WRITE) call on r-x program segments.

Bug: 17399706
Bug: 17177284

(cherry picked from commit 9aea164457c269c475592da36b4655d45f55c7bc)

Change-Id: Ie19d900fc203beb93faf8943b0d06d534a6de4ad

2014-10-01 16:04:31 -07:00

Dmitriy Ivanov

bd321c1106

Run constructors before resolving ifunc functions

Bug: 17177284

(cherry picked from commit 9598b8c415e2fa9f240508185fe8c964b83f538d)

Change-Id: I2c9631ee1cd77f8cf95ec0216a35b605c8786454

2014-10-01 15:51:47 -07:00

Brigid Smith

31b88da843

Added test for ifunc support in dynamic linker.

ifuncs now work in i386 and x86_64 when called in the same library as
well as in a different library.

Bug:6657325
(cherry picked from commit c5a13efa9bc4264be0a9a9e37c00633af01584ed)

Change-Id: I321d780bc2f9bd1baa749e1acacd2683aefe827b

2014-10-01 15:50:38 -07:00

3 Commits