From bf84f8f74f087fbf1c4adc293433cd2e7b70df58 Mon Sep 17 00:00:00 2001
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From: Jeffy Chen <jeffy.chen@rock-chips.com>
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Date: Wed, 25 May 2022 21:46:16 +0800
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Subject: [PATCH] The signal definitions of musl and gdb collide
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The kernel defines "struct sigcontext" in asm/sigcontext.h and musl libc
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defines it in signal.h which collides.
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Kernel 4.14 misses the definitions of struct user_sve_header so we still
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have to use the aarch64-sve-linux-sigcontext.h header file which also
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provides that and make sure aarch64-sve-linux-sigcontext.h does not
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provide the same headers as the kernel or musl.
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From:
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https://git.openwrt.org/?p=openwrt/openwrt.git;a=blob;f=package/devel/gdb/patches/010-aarch64-headers.patch;h=a718a8c6a4e2d898f33a4f61ab1dc3228f4c3a48;hb=bc89690f6e2c80e100b4dbfbabc7c7adb8218d74
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Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
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---
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gdb/nat/aarch64-sve-linux-ptrace.h | 2 +-
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gdb/nat/aarch64-sve-linux-sigcontext.h | 2 ++
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2 files changed, 3 insertions(+), 1 deletion(-)
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diff --git a/gdb/nat/aarch64-sve-linux-ptrace.h b/gdb/nat/aarch64-sve-linux-ptrace.h
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index 5c264b3..bf959dc 100644
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--- a/gdb/nat/aarch64-sve-linux-ptrace.h
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+++ b/gdb/nat/aarch64-sve-linux-ptrace.h
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@@ -31,7 +31,7 @@
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#include <sys/ptrace.h>
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#include <asm/ptrace.h>
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-#ifndef SVE_SIG_ZREGS_SIZE
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+#ifndef SVE_PT_REGS_SVE
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#include "aarch64-sve-linux-sigcontext.h"
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#endif
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diff --git a/gdb/nat/aarch64-sve-linux-sigcontext.h b/gdb/nat/aarch64-sve-linux-sigcontext.h
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index 1b40ffa..373e222 100644
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--- a/gdb/nat/aarch64-sve-linux-sigcontext.h
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+++ b/gdb/nat/aarch64-sve-linux-sigcontext.h
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@@ -19,6 +19,7 @@
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#ifndef NAT_AARCH64_SVE_LINUX_SIGCONTEXT_H
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#define NAT_AARCH64_SVE_LINUX_SIGCONTEXT_H
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+#ifndef SVE_MAGIC
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#define SVE_MAGIC 0x53564501
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struct sve_context {
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@@ -128,6 +129,7 @@ struct sve_context {
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(SVE_SIG_FFR_OFFSET(vq) + SVE_SIG_FFR_SIZE(vq) - SVE_SIG_REGS_OFFSET)
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#define SVE_SIG_CONTEXT_SIZE(vq) (SVE_SIG_REGS_OFFSET + SVE_SIG_REGS_SIZE(vq))
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+#endif
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/* SVE/FP/SIMD state (NT_ARM_SVE) */
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--
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2.20.1
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