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authorDavid Daney <ddaney@caviumnetworks.com>2010-02-18 16:13:04 -0800
committerRalf Baechle <ralf@linux-mips.org>2010-04-12 17:26:14 +0100
commitc52d0d30aef84aa8893b34e5254716c8ab5c4472 (patch)
tree0ba93eb7e305229ceb2ee04119dc7ab22b9fa33d /arch/mips/kernel/signal.c
parent58b9e2239fa63c7c470acb4a77e9da17e6a6fa4f (diff)
downloadlinux-2.6.34-ux500-c52d0d30aef84aa8893b34e5254716c8ab5c4472.tar.gz
MIPS: Preliminary VDSO
This is a preliminary patch to add a vdso to all user processes. Still missing are ELF headers and .eh_frame information. But it is enough to allow us to move signal trampolines off of the stack. Note that emulation of branch delay slots in the FPU emulator still requires the stack. We allocate a single page (the vdso) and write all possible signal trampolines into it. The stack is moved down by one page and the vdso is mapped into this space. Signed-off-by: David Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/975/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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