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fca460f95e
x32 shares most system calls with x86-64, but unfortunately some subsystem (the input subsystem is the chief offender) which require is_compat() when operating with a 32-bit userspace. The input system actually has text files in sysfs whose meaning is dependent on sizeof(long) in userspace! We could solve this by having two completely disjoint system call tables; requiring that each system call be duplicated. This patch takes a different approach: we add a flag to the system call number; this flag doesn't affect the system call dispatch but requests compat treatment from affected subsystems for the duration of the system call. The change of cmpq to cmpl is safe since it immediately follows the and. Signed-off-by: H. Peter Anvin <hpa@zytor.com> |
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| avr32 | ||
| blackfin | ||
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| hexagon | ||
| ia64 | ||
| m32r | ||
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| score | ||
| sh | ||
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| tile | ||
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| unicore32 | ||
| x86 | ||
| xtensa | ||
| .gitignore | ||
| Kconfig | ||