Messages in this thread | | | From | Andy Lutomirski <> | Subject | [PATCH 0/3] vDSO reference parser updates and Go workaround | Date | Thu, 12 Jun 2014 11:47:41 -0700 |
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Patches 1 and 2 update the vDSO reference parser.
Despite the late submission, this might be 3.16 material: it's just documentation. If I'd been more on top of this, I would have done it for 3.15. It's also probably worthwhile given that there is at least one rather buggy vDSO parser in the wild.
Patch 3 makes "Hello world" as built by Go stop segfaulting. It's a performance regression for Go programs: it causes them to stop finding any symbols in the vDSO, but that's a lot better than segfaulting. It has big-endian issues, though, and it's ugly, and it should probably be disabled for x32.
Andy Lutomirski (3): doc,vdso: Rename vdso_test.c to vdso_standalone_test_x86.c doc,vdso: Make vDSO examples more portable x86,vdso: Hack to keep 64-bit Go programs working
Documentation/vDSO/parse_vdso.c | 59 ++++++------ Documentation/vDSO/vdso_standalone_test_x86.c | 128 ++++++++++++++++++++++++++ Documentation/vDSO/vdso_test.c | 103 +++++---------------- arch/x86/vdso/Makefile | 2 +- arch/x86/vdso/vdso-fakesections.c | 20 ++++ arch/x86/vdso/vdso2c.h | 21 ++++- 6 files changed, 219 insertions(+), 114 deletions(-) create mode 100644 Documentation/vDSO/vdso_standalone_test_x86.c create mode 100644 arch/x86/vdso/vdso-fakesections.c
-- 1.9.3
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