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be84cb4383
The existing <asm-generic/unistd.h> mechanism doesn't really provide enough to create the 64-bit "compat" ABI properly in a generic way, since the compat ABI is a mix of things were you can re-use the 64-bit versions of syscalls and things where you need a compat wrapper. To provide this in the most direct way possible, I added two new macros to go along with the existing __SYSCALL and __SC_3264 macros: __SC_COMP and SC_COMP_3264. These macros take an additional argument, typically a "compat_sys_xxx" function, which is passed to __SYSCALL if you define __SYSCALL_COMPAT when including the header, resulting in a pointer to the compat function being placed in the generated syscall table. The change also adds some missing definitions to <linux/compat.h> so that it actually has declarations for all the compat syscalls, since the "[nr] = ##call" approach requires proper C declarations for all the functions included in the syscall table. Finally, compat.c defines compat_sys_sigpending() and compat_sys_sigprocmask() even if the underlying architecture doesn't request it, which tries to pull in undefined compat_old_sigset_t defines. We need to guard those compat syscall definitions with appropriate __ARCH_WANT_SYS_xxx ifdefs. Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> |
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| .. | ||
| asm-offsets.c | ||
| backtrace.c | ||
| compat_signal.c | ||
| compat.c | ||
| early_printk.c | ||
| entry.S | ||
| hardwall.c | ||
| head_32.S | ||
| hvglue.lds | ||
| init_task.c | ||
| intvec_32.S | ||
| irq.c | ||
| machine_kexec.c | ||
| Makefile | ||
| messaging.c | ||
| module.c | ||
| pci-dma.c | ||
| pci.c | ||
| proc.c | ||
| process.c | ||
| ptrace.c | ||
| reboot.c | ||
| regs_32.S | ||
| relocate_kernel.S | ||
| setup.c | ||
| signal.c | ||
| single_step.c | ||
| smp.c | ||
| smpboot.c | ||
| stack.c | ||
| sys.c | ||
| tile-desc_32.c | ||
| time.c | ||
| tlb.c | ||
| traps.c | ||
| vmlinux.lds.S | ||