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b61df2294f
the restorer function pointer provided in the kernel sigaction structure is interpreted by the kernel as a raw code address, not a function descriptor. this commit moves the declarations of the __restore and __restore_rt symbols to ksigaction.h so that arch versions of the file can override them, and introduces a version for sh which declares them as objects rather than functions. an alternate solution would have been defining SA_RESTORER to 0 so that the functions are not used, but this both requires executable stack (since the sh kernel does not have a vdso page with permanent restorer functions) and crashes on qemu user-level emulation. |
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| aarch64 | ||
| arm | ||
| i386 | ||
| microblaze | ||
| mips | ||
| or1k | ||
| powerpc | ||
| sh | ||
| x32 | ||
| x86_64 | ||