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author | Khem Raj <raj.khem@gmail.com> | 2019-07-23 23:56:15 -0700 |
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committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2019-07-26 08:40:57 +0100 |
commit | eff0a21a835808c5e2862b820a1ebb200ff100db (patch) | |
tree | 3853e6cb594b41a4a819fcfc4b38a64234fd87a0 /meta/recipes-kernel/linux-libc-headers/linux-libc-headers | |
parent | 969a6f39253e89bfb38c3ff83152a1e9c03f8e97 (diff) | |
download | openembedded-core-contrib-eff0a21a835808c5e2862b820a1ebb200ff100db.tar.gz |
linux-libc-header: Fix ptrace.h and prctl.h conflict on aarch64
This is a backport from 5.2 release upstream, it fixes long standing
build failure on musl/aarch64
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-kernel/linux-libc-headers/linux-libc-headers')
-rw-r--r-- | meta/recipes-kernel/linux-libc-headers/linux-libc-headers/0001-arm64-sve-uapi-asm-ptrace.h-should-not-depend-on-uap.patch | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/meta/recipes-kernel/linux-libc-headers/linux-libc-headers/0001-arm64-sve-uapi-asm-ptrace.h-should-not-depend-on-uap.patch b/meta/recipes-kernel/linux-libc-headers/linux-libc-headers/0001-arm64-sve-uapi-asm-ptrace.h-should-not-depend-on-uap.patch new file mode 100644 index 0000000000..5ea46e9590 --- /dev/null +++ b/meta/recipes-kernel/linux-libc-headers/linux-libc-headers/0001-arm64-sve-uapi-asm-ptrace.h-should-not-depend-on-uap.patch @@ -0,0 +1,62 @@ +From 35341ca0614ab13e1ef34ad4f29a39e15ef31fa8 Mon Sep 17 00:00:00 2001 +From: Anisse Astier <aastier@freebox.fr> +Date: Mon, 17 Jun 2019 15:22:22 +0200 +Subject: [PATCH] arm64/sve: <uapi/asm/ptrace.h> should not depend on + <uapi/linux/prctl.h> + +Pulling linux/prctl.h into asm/ptrace.h in the arm64 UAPI headers causes +userspace build issues for any program (e.g. strace and qemu) that +includes both <sys/prctl.h> and <linux/ptrace.h> when using musl libc: + + | error: redefinition of 'struct prctl_mm_map' + | struct prctl_mm_map { + +See https://github.com/foundriesio/meta-lmp/commit/6d4a106e191b5d79c41b9ac78fd321316d3013c0 +for a public example of people working around this issue. + +Although it's a bit grotty, fix this breakage by duplicating the prctl +constant definitions. Since these are part of the kernel ABI, they +cannot be changed in future and so it's not the end of the world to have +them open-coded. + +Fixes: 43d4da2c45b2 ("arm64/sve: ptrace and ELF coredump support") + +Upstream-Status: Backport [https://github.com/torvalds/linux/commit/35341ca0614ab13e1ef34ad4f29a39e15ef31fa8] +Cc: stable@vger.kernel.org +Acked-by: Dave Martin <Dave.Martin@arm.com> +Signed-off-by: Anisse Astier <aastier@freebox.fr> +Signed-off-by: Will Deacon <will.deacon@arm.com> +--- + arch/arm64/include/uapi/asm/ptrace.h | 8 +++----- + 1 file changed, 3 insertions(+), 5 deletions(-) + +diff --git a/arch/arm64/include/uapi/asm/ptrace.h b/arch/arm64/include/uapi/asm/ptrace.h +index 97c53203150b..e932284993d4 100644 +--- a/arch/arm64/include/uapi/asm/ptrace.h ++++ b/arch/arm64/include/uapi/asm/ptrace.h +@@ -65,8 +65,6 @@ + + #ifndef __ASSEMBLY__ + +-#include <linux/prctl.h> +- + /* + * User structures for general purpose, floating point and debug registers. + */ +@@ -113,10 +111,10 @@ struct user_sve_header { + + /* + * Common SVE_PT_* flags: +- * These must be kept in sync with prctl interface in <linux/ptrace.h> ++ * These must be kept in sync with prctl interface in <linux/prctl.h> + */ +-#define SVE_PT_VL_INHERIT (PR_SVE_VL_INHERIT >> 16) +-#define SVE_PT_VL_ONEXEC (PR_SVE_SET_VL_ONEXEC >> 16) ++#define SVE_PT_VL_INHERIT ((1 << 17) /* PR_SVE_VL_INHERIT */ >> 16) ++#define SVE_PT_VL_ONEXEC ((1 << 18) /* PR_SVE_SET_VL_ONEXEC */ >> 16) + + + /* +-- +2.22.0 + |