From: ynorov@caviumnetworks.com (Yury Norov)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v6 13/21] arm64: ptrace: handle ptrace_request differently for aarch32 and ilp32
Date: Fri, 8 Jan 2016 02:34:31 +0300 [thread overview]
Message-ID: <1452209679-19445-14-git-send-email-ynorov@caviumnetworks.com> (raw)
In-Reply-To: <1452209679-19445-1-git-send-email-ynorov@caviumnetworks.com>
Signed-off-by: Yury Norov <ynorov@caviumnetworks.com>
---
arch/arm64/kernel/ptrace.c | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index c166548..f95fb89 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -1108,7 +1108,7 @@ static int compat_ptrace_sethbpregs(struct task_struct *tsk, compat_long_t num,
}
#endif /* CONFIG_HAVE_HW_BREAKPOINT */
-long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
+long compat_a32_ptrace(struct task_struct *child, compat_long_t request,
compat_ulong_t caddr, compat_ulong_t cdata)
{
unsigned long addr = caddr;
@@ -1185,8 +1185,25 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
return ret;
}
+#else
+
+#define compat_a32_ptrace(child, request, caddr, cdata) (-1)
+
#endif /* CONFIG_AARCH32_EL0 */
+#ifdef CONFIG_COMPAT
+
+long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
+ compat_ulong_t caddr, compat_ulong_t cdata)
+{
+ if (is_a32_compat_task())
+ return compat_a32_ptrace(child, request, caddr, cdata);
+
+ return compat_ptrace_request(child, request, caddr, cdata);
+}
+
+#endif /* CONFIG_COMPAT */
+
const struct user_regset_view *task_user_regset_view(struct task_struct *task)
{
#ifdef CONFIG_AARCH32_EL0
--
2.5.0
next prev parent reply other threads:[~2016-01-07 23:34 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-07 23:34 [RFC4 PATCH v6 00/21] ILP32 for ARM64 Yury Norov
2016-01-07 23:34 ` [PATCH v6 01/21] arm64: ilp32: add documentation on the ILP32 ABI " Yury Norov
2016-01-07 23:34 ` [PATCH v6 02/21] arm64: ensure the kernel is compiled for LP64 Yury Norov
2016-01-07 23:34 ` [PATCH v6 03/21] arm64: rename COMPAT to AARCH32_EL0 in Kconfig Yury Norov
2016-01-07 23:34 ` [PATCH v6 04/21] arm64: change some CONFIG_COMPAT over to use CONFIG_AARCH32_EL0 instead Yury Norov
2016-01-07 23:34 ` [PATCH v6 05/21] arm64: compat: fix wrong dependency Yury Norov
2016-01-08 8:49 ` Arnd Bergmann
2016-01-07 23:34 ` [PATCH v6 06/21] arm64:uapi: set __BITS_PER_LONG correctly for ILP32 and LP64 Yury Norov
2016-01-07 23:34 ` [PATCH v6 07/21] thread: move thread bits accessors to separated file Yury Norov
2016-01-07 23:34 ` [PATCH v6 08/21] arm64: introduce is_a32_task and is_a32_thread (for AArch32 compat) Yury Norov
2016-01-07 23:34 ` [PATCH v6 09/21] arm64: ilp32: add is_ilp32_compat_{task, thread} and TIF_32BIT_AARCH64 Yury Norov
2016-01-07 23:34 ` [PATCH v6 10/21] arm64: introduce binfmt_elf32.c Yury Norov
2016-01-07 23:34 ` [PATCH v6 11/21] arm64: ilp32: introduce binfmt_ilp32.c Yury Norov
2016-01-07 23:45 ` Yury Norov
2016-01-08 9:08 ` Arnd Bergmann
2016-01-12 16:46 ` Yury Norov
2016-01-12 23:05 ` Arnd Bergmann
2016-01-07 23:34 ` [PATCH v6 12/21] arm64:ilp32: share HWCAP between LP64 and ILP32 Yury Norov
2016-01-08 8:58 ` Arnd Bergmann
2016-01-07 23:34 ` Yury Norov [this message]
2016-01-08 9:01 ` [PATCH v6 13/21] arm64: ptrace: handle ptrace_request differently for aarch32 and ilp32 Arnd Bergmann
2016-01-07 23:34 ` [PATCH v6 14/21] arm64:ilp32: add sys_ilp32.c and a separate table (in entry.S) to use it Yury Norov
2016-01-08 9:04 ` Arnd Bergmann
2016-01-08 9:21 ` Arnd Bergmann
2016-01-08 11:13 ` Yury Norov
2016-01-08 16:45 ` Arnd Bergmann
2016-01-13 16:21 ` Yury Norov
2016-01-07 23:34 ` [PATCH v6 15/21] arm64: signal: wrap struct ucontext, fp and lr with struct sigframe Yury Norov
2016-01-07 23:34 ` [PATCH v6 16/21] arm64: signal: share lp64 signal routines to ilp32 Yury Norov
2016-01-07 23:34 ` [PATCH v6 17/21] arm64: signal32: move ilp32 and aarch32 common code to separated file Yury Norov
2016-01-07 23:34 ` [PATCH v6 18/21] arm64: ilp32: introduce ilp32-specific handlers for sigframe Yury Norov
2016-01-07 23:34 ` [PATCH v6 19/21] arm64:ilp32: add vdso-ilp32 and use for signal return Yury Norov
2016-01-07 23:34 ` [PATCH v6 20/21] arm64:ilp32: change COMPAT_ELF_PLATFORM to report a a subplatform for ILP32 Yury Norov
2016-01-08 9:05 ` Arnd Bergmann
2016-01-07 23:34 ` [PATCH v6 21/21] arm64:ilp32: add ARM64_ILP32 to Kconfig Yury Norov
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