BMC/Intel-BMC/linux.git/arch/arm64/include/asm/compat.h, branch dev

arm64: compat: Remove incorrect comment in compat_siginfo

2015-02-02T16:44:39+00:00

The comment was right originally but the _pad array size was wrong. It was fixed in the meantime but the comment not updated. Reported-by: Peter Maydell Signed-off-by: Catalin Marinas

arm64: add SIGSYS siginfo for compat task

2014-11-28T10:24:59+00:00

SIGSYS is primarily used in secure computing to notify tracer of syscall events. This patch allows signal handler on compat task to get correct information with SA_SIGINFO specified when this signal is delivered. Reviewed-by: Kees Cook Signed-off-by: AKASHI Takahiro Signed-off-by: Will Deacon

arm64: compat: fix compat types affecting struct compat_elf_prpsinfo

2014-10-20T16:47:02+00:00

The compat_elf_prpsinfo structure does not match the arch/arm struct elf_pspsinfo definition. As result NT_PRPSINFO note in core file created by arm64 kernel for aarch32 (compat) process has wrong size. So gdb cannot display command that caused process crash. Fix is to change size of __compat_uid_t, __compat_gid_t so it would match size of similar fields in arch/arm case. Signed-off-by: Victor Kamensky Acked-by: Arnd Bergmann Cc: Signed-off-by: Catalin Marinas

arm64: is_compat_task is defined both in asm/compat.h and linux/compat.h

2014-05-12T15:43:29+00:00

Some kernel files may include both linux/compat.h and asm/compat.h directly or indirectly. Since both header files contain is_compat_task() under !CONFIG_COMPAT, compiling them with !CONFIG_COMPAT will eventually fail. Such files include kernel/auditsc.c, kernel/seccomp.c and init/do_mountfs.c (do_mountfs.c may read asm/compat.h via asm/ftrace.h once ftrace is implemented). So this patch proactively 1) removes is_compat_task() under !CONFIG_COMPAT from asm/compat.h 2) replaces asm/compat.h to linux/compat.h in kernel/*.c, but asm/compat.h is still necessary in ptrace.c and process.c because they use is_compat_thread(). Acked-by: Will Deacon Signed-off-by: AKASHI Takahiro Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas

ARM64: perf: support dwarf unwinding in compat mode

2014-03-13T11:22:38+00:00

Add support for unwinding using the dwarf information in compat mode. Using the correct user stack pointer allows perf to record the frames correctly in the native and compat modes. Note that although the dwarf frame unwinding works ok using libunwind in native mode (on ARMv7 & ARMv8), some changes are required to the libunwind code for the compat mode. Those changes are posted separately on the libunwind mailing list. Tested on ARMv8 platform with v8 and compat v7 binaries, the latter are statically built. Signed-off-by: Jean Pihet Acked-by: Will Deacon Signed-off-by: Catalin Marinas

arm64: compat: add support for big-endian (BE8) AArch32 binaries

2013-10-25T14:59:35+00:00

This patch adds support for BE8 AArch32 tasks to the compat layer. Signed-off-by: Will Deacon Signed-off-by: Catalin Marinas

arm64: Fix compat types affecting struct compat_stat

2013-04-25T16:45:50+00:00

The compat_stat structure doesn't match the arch/arm/ struct stat definition. This patch fixes the compat types and struct compat_stat definition accordingly. Signed-off-by: Catalin Marinas Acked-by: Will Deacon

arm64: Include linux/ptrace.h in asm/compat.h

2013-01-02T11:50:19+00:00

Commit 9b064fc3f95a8e44e929fdf4d6037334ea03d15b (new helper: compat_user_stack_pointer()) introduces a call to current_pt_regs() which is defined in linux/ptrace.h, not currently included asm/compat.h. Signed-off-by: Catalin Marinas

new helper: compat_user_stack_pointer()

2012-12-19T23:07:40+00:00

Compat counterpart of current_user_stack_pointer(); for most of the biarch architectures those two are identical, but e.g. arm64 and arm use different registers for stack pointer... Note that amd64 variants of current_user_stack_pointer/compat_user_stack_pointer do *not* rely on pt_regs having been through FIXUP_TOP_OF_STACK. Signed-off-by: Al Viro

compat: move compat_siginfo_t definition to asm/compat.h

2012-10-05T18:05:16+00:00

This is a preparatory patch for the introduction of NT_SIGINFO elf note. Make the location of compat_siginfo_t uniform across eight architectures which have it. Now it can be pulled in by including asm/compat.h or linux/compat.h. Most of the copies are verbatim. compat_uid[32]_t had to be replaced by __compat_uid[32]_t. compat_uptr_t had to be moved up before compat_siginfo_t in asm/compat.h on a several architectures (tile already had it moved up). compat_sigval_t had to be relocated from linux/compat.h to asm/compat.h. Signed-off-by: Denys Vlasenko Cc: Oleg Nesterov Cc: Amerigo Wang Cc: "Jonathan M. Foote" Cc: Roland McGrath Cc: Pedro Alves Cc: Fengguang Wu Cc: Stephen Rothwell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds