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37 lines
1.3 KiB
Diff
37 lines
1.3 KiB
Diff
From 203f3060dd363361b172f7295f42bb6bf5ac0b3b Mon Sep 17 00:00:00 2001
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From: Andreas Schwab <schwab@suse.de>
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Date: Sat, 23 Apr 2022 15:48:42 +0200
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Subject: [PATCH] riscv/linux: Don't add -latomic with -pthread
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Now that we have support for inline subword atomic operations, it is no
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longer necessary to link against libatomic. This also fixes testsuite
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failures because the framework does not properly set up the linker flags
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for finding libatomic.
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The use of atomic operations is also independent of the use of libpthread.
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gcc/
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* config/riscv/linux.h (LIB_SPEC): Don't redefine.
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---
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gcc/config/riscv/linux.h | 10 ----------
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1 file changed, 10 deletions(-)
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--- a/gcc/config/riscv/linux.h
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+++ b/gcc/config/riscv/linux.h
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@@ -35,16 +35,6 @@ along with GCC; see the file COPYING3.
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#undef MUSL_DYNAMIC_LINKER
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#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-riscv" XLEN_SPEC MUSL_ABI_SUFFIX ".so.1"
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-/* Because RISC-V only has word-sized atomics, it requries libatomic where
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- others do not. So link libatomic by default, as needed. */
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-#undef LIB_SPEC
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-#ifdef LD_AS_NEEDED_OPTION
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-#define LIB_SPEC GNU_USER_TARGET_LIB_SPEC \
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- " %{pthread:" LD_AS_NEEDED_OPTION " -latomic " LD_NO_AS_NEEDED_OPTION "}"
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-#else
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-#define LIB_SPEC GNU_USER_TARGET_LIB_SPEC " -latomic "
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-#endif
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-
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#define ICACHE_FLUSH_FUNC "__riscv_flush_icache"
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#define CPP_SPEC "%{pthread:-D_REENTRANT}"
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