41 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
			
		
		
	
	
			41 lines
		
	
	
		
			1.4 KiB
		
	
	
	
		
			Diff
		
	
	
	
	
	
--- a/gcc/config/arm/linux-eabi.h
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+++ b/gcc/config/arm/linux-eabi.h
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@@ -77,6 +77,23 @@
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     %{mfloat-abi=soft*:" GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "} \
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     %{!mfloat-abi=*:" GLIBC_DYNAMIC_LINKER_DEFAULT "}"
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+/* For ARM musl currently supports four dynamic linkers:
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+   - ld-musl-arm.so.1 - for the EABI-derived soft-float ABI
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+   - ld-musl-armhf.so.1 - for the EABI-derived hard-float ABI
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+   - ld-musl-armeb.so.1 - for the EABI-derived soft-float ABI, EB
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+   - ld-musl-armebhf.so.1 - for the EABI-derived hard-float ABI, EB
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+   musl does not support the legacy OABI mode.
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+   All the dynamic linkers live in /lib.
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+   We default to soft-float, EL. */
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+#undef  MUSL_DYNAMIC_LINKER
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+#if TARGET_BIG_ENDIAN_DEFAULT
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+#define MUSL_DYNAMIC_LINKER_E "%{mlittle-endian:;:eb}"
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+#else
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+#define MUSL_DYNAMIC_LINKER_E "%{mbig-endian:eb}"
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+#endif
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+#define MUSL_DYNAMIC_LINKER \
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+  "/lib/ld-musl-arm" MUSL_DYNAMIC_LINKER_E "%{mfloat-abi=hard:hf}.so.1"
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+
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 /* At this point, bpabi.h will have clobbered LINK_SPEC.  We want to
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    use the GNU/Linux version, not the generic BPABI version.  */
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 #undef  LINK_SPEC
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--- a/libitm/config/arm/hwcap.cc
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+++ b/libitm/config/arm/hwcap.cc
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@@ -40,7 +40,11 @@ int GTM_hwcap HIDDEN = 0
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 #ifdef __linux__
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 #include <unistd.h>
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+#ifdef __GLIBC__
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 #include <sys/fcntl.h>
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+#else
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+#include <fcntl.h>
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+#endif
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 #include <elf.h>
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 static void __attribute__((constructor))
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