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arm64 fixes for 4.3-rc6

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- Fix module CFLAGS setting in workaround for erratum #843419
 - Update MINSIGSTKSZ and SIGSTKSZ to match glibc
 - Wire up some new compat syscalls
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "Here are a few more arm64 fixes for 4.3.  Again, nothing too
  significant, but worth having nonetheless.  The MINSIGSTKSZ update is
  a bit grotty, but the value we currently have is wrong (too small), so
  anybody using that will have issues already.  It has Arnd's ack for
  the asm-generic change.

  Summary:

   - Fix module CFLAGS setting in workaround for erratum #843419
   - Update MINSIGSTKSZ and SIGSTKSZ to match glibc
   - Wire up some new compat syscalls"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: compat: wire up new syscalls
  arm64: Fix MINSIGSTKSZ and SIGSTKSZ
  arm64: errata: use KBUILD_CFLAGS_MODULE for erratum #843419
This commit is contained in:
Linus Torvalds 2015-10-15 14:03:38 -07:00
commit 69984b6444
5 changed files with 16 additions and 2 deletions
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2
arch/arm64/Makefile
View file

@ -42,7 +42,7 @@ endif
CHECKFLAGS += -D__aarch64__ CHECKFLAGS += -D__aarch64__
ifeq ($(CONFIG_ARM64_ERRATUM_843419), y) ifeq ($(CONFIG_ARM64_ERRATUM_843419), y)
CFLAGS_MODULE += -mcmodel=large KBUILD_CFLAGS_MODULE += -mcmodel=large
endif endif
# Default value # Default value

2
arch/arm64/include/asm/unistd.h
View file

@ -44,7 +44,7 @@
#define __ARM_NR_compat_cacheflush (__ARM_NR_COMPAT_BASE+2) #define __ARM_NR_compat_cacheflush (__ARM_NR_COMPAT_BASE+2)
#define __ARM_NR_compat_set_tls (__ARM_NR_COMPAT_BASE+5) #define __ARM_NR_compat_set_tls (__ARM_NR_COMPAT_BASE+5)
#define __NR_compat_syscalls 388 #define __NR_compat_syscalls 390
#endif #endif
#define __ARCH_WANT_SYS_CLONE #define __ARCH_WANT_SYS_CLONE

9
arch/arm64/include/asm/unistd32.h
View file

@ -797,3 +797,12 @@ __SYSCALL(__NR_memfd_create, sys_memfd_create)
__SYSCALL(__NR_bpf, sys_bpf) __SYSCALL(__NR_bpf, sys_bpf)
#define __NR_execveat 387 #define __NR_execveat 387
__SYSCALL(__NR_execveat, compat_sys_execveat) __SYSCALL(__NR_execveat, compat_sys_execveat)
#define __NR_userfaultfd 388
__SYSCALL(__NR_userfaultfd, sys_userfaultfd)
#define __NR_membarrier 389
__SYSCALL(__NR_membarrier, sys_membarrier)
/*
* Please add new compat syscalls above this comment and update
* __NR_compat_syscalls in asm/unistd.h.
*/

3
arch/arm64/include/uapi/asm/signal.h
View file

@ -19,6 +19,9 @@
/* Required for AArch32 compatibility. */ /* Required for AArch32 compatibility. */
#define SA_RESTORER 0x04000000 #define SA_RESTORER 0x04000000
#define MINSIGSTKSZ 5120
#define SIGSTKSZ 16384
#include <asm-generic/signal.h> #include <asm-generic/signal.h>
#endif #endif

2
include/uapi/asm-generic/signal.h
View file

@ -80,8 +80,10 @@
* SA_RESTORER 0x04000000 * SA_RESTORER 0x04000000
*/ */
#if !defined MINSIGSTKSZ || !defined SIGSTKSZ
#define MINSIGSTKSZ 2048 #define MINSIGSTKSZ 2048
#define SIGSTKSZ 8192 #define SIGSTKSZ 8192
#endif
#ifndef __ASSEMBLY__ #ifndef __ASSEMBLY__
typedef struct { typedef struct {