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a6c19dfe39
The core mm code will provide a default gate area based on FIXADDR_USER_START and FIXADDR_USER_END if !defined(__HAVE_ARCH_GATE_AREA) && defined(AT_SYSINFO_EHDR). This default is only useful for ia64. arm64, ppc, s390, sh, tile, 64-bit UML, and x86_32 have their own code just to disable it. arm, 32-bit UML, and x86_64 have gate areas, but they have their own implementations. This gets rid of the default and moves the code into ia64. This should save some code on architectures without a gate area: it's now possible to inline the gate_area functions in the default case. Signed-off-by: Andy Lutomirski <luto@amacapital.net> Acked-by: Nathan Lynch <nathan_lynch@mentor.com> Acked-by: H. Peter Anvin <hpa@linux.intel.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> [in principle] Acked-by: Richard Weinberger <richard@nod.at> [for um] Acked-by: Will Deacon <will.deacon@arm.com> [for arm64] Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Jeff Dike <jdike@addtoit.com> Cc: Richard Weinberger <richard@nod.at> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Nathan Lynch <Nathan_Lynch@mentor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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| .. | ||
| vdso | ||
| asm-offsets.c | ||
| backtrace.c | ||
| compat_signal.c | ||
| compat.c | ||
| early_printk.c | ||
| entry.S | ||
| ftrace.c | ||
| hardwall.c | ||
| head_32.S | ||
| head_64.S | ||
| hvglue_trace.c | ||
| hvglue.S | ||
| intvec_32.S | ||
| intvec_64.S | ||
| irq.c | ||
| kgdb.c | ||
| kprobes.c | ||
| machine_kexec.c | ||
| Makefile | ||
| mcount_64.S | ||
| messaging.c | ||
| module.c | ||
| pci_gx.c | ||
| pci-dma.c | ||
| pci.c | ||
| perf_event.c | ||
| pmc.c | ||
| proc.c | ||
| process.c | ||
| ptrace.c | ||
| reboot.c | ||
| regs_32.S | ||
| regs_64.S | ||
| relocate_kernel_32.S | ||
| relocate_kernel_64.S | ||
| setup.c | ||
| signal.c | ||
| single_step.c | ||
| smp.c | ||
| smpboot.c | ||
| stack.c | ||
| sys.c | ||
| sysfs.c | ||
| tile-desc_32.c | ||
| tile-desc_64.c | ||
| time.c | ||
| tlb.c | ||
| traps.c | ||
| unaligned.c | ||
| usb.c | ||
| vdso.c | ||
| vmlinux.lds.S | ||