8526e7570f
The kernel patch *-mips_module_reloc.patch breaks dynamic ftrace as dynamic ftrace depends on -mlong-calls. See http://patchwork.linux-mips.org/patch/675/ Thus we always set -mlong-calls if the kernel is being compiled with dynamic ftrace support.
39 lines
1.5 KiB
Diff
39 lines
1.5 KiB
Diff
From: Vincent Wiemann <webmaster@codefetch.de>
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Date: Sun, 10 Jun 2018 02:01:08 +0200
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Subject: mips: fix dynamic ftrace
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The kernel patch *-mips_module_reloc.patch breaks dynamic ftrace as
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dynamic ftrace depends on -mlong-calls.
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See http://patchwork.linux-mips.org/patch/675/
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Thus we always set -mlong-calls if the kernel is being
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compiled with dynamic ftrace support.
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diff --git a/target/linux/generic/patches-4.4/305-mips_module_reloc.patch b/target/linux/generic/patches-4.4/305-mips_module_reloc.patch
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index 944921fff7a0d0d33515cb84a2cb81e9cca42d0e..c16005ff2169aad20fe32261841a6d07f4ac3bed 100644
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--- a/target/linux/generic/patches-4.4/305-mips_module_reloc.patch
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+++ b/target/linux/generic/patches-4.4/305-mips_module_reloc.patch
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@@ -1,6 +1,6 @@
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--- a/arch/mips/Makefile
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+++ b/arch/mips/Makefile
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-@@ -90,8 +90,13 @@ all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlin
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+@@ -90,8 +90,18 @@ all-$(CONFIG_SYS_SUPPORTS_ZBOOT)+= vmlin
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cflags-y += -G 0 -mno-abicalls -fno-pic -pipe -mno-branch-likely
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cflags-y += -msoft-float
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LDFLAGS_vmlinux += -G 0 -static -n -nostdlib --gc-sections
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@@ -8,8 +8,13 @@
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KBUILD_AFLAGS_MODULE += -mlong-calls
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KBUILD_CFLAGS_MODULE += -mlong-calls
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+else
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-+KBUILD_AFLAGS_MODULE += -mno-long-calls
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-+KBUILD_CFLAGS_MODULE += -mno-long-calls
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++ ifdef CONFIG_DYNAMIC_FTRACE
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++ KBUILD_AFLAGS_MODULE += -mlong-calls
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++ KBUILD_CFLAGS_MODULE += -mlong-calls
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++ else
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++ KBUILD_AFLAGS_MODULE += -mno-long-calls
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++ KBUILD_CFLAGS_MODULE += -mno-long-calls
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++ endif
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+endif
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ifndef CONFIG_FUNCTION_TRACER
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