From c3fdbc0a24c83246f951ba79c7167547da979ae5 Mon Sep 17 00:00:00 2001
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From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
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Date: Wed, 10 Nov 2021 23:14:54 +0100
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Subject: [PATCH] fix musl build on riscv
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Fix the following build failure raised with musl:
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../../gdbserver/linux-riscv-low.cc: In function 'void riscv_fill_fpregset(regcache*, void*)':
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../../gdbserver/linux-riscv-low.cc:140:19: error: 'ELF_NFPREG' was not declared in this scope; did you mean 'ELF_NGREG'?
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140 | for (i = 0; i < ELF_NFPREG - 1; i++, regbuf += flen)
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| ^~~~~~~~~~
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| ELF_NGREG
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musl fixed the issue with
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https://git.musl-libc.org/cgit/musl/commit/?id=e5d2823631bbfebacf48e1a34ed28f28d7cb2570
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Fixes:
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- http://autobuild.buildroot.org/results/16b19198980ce9c81a618b3f6e8dc9fe28247a28
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Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
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---
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gdb/nat/riscv-linux-tdesc.c | 5 +++++
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gdbserver/linux-riscv-low.cc | 5 +++++
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2 files changed, 10 insertions(+)
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diff --git a/gdb/nat/riscv-linux-tdesc.c b/gdb/nat/riscv-linux-tdesc.c
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index 837b1707e0f..667c013006a 100644
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--- a/gdb/nat/riscv-linux-tdesc.c
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+++ b/gdb/nat/riscv-linux-tdesc.c
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@@ -31,6 +31,11 @@
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# define NFPREG 33
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#endif
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+/* Work around musl breakage since version 1.1.24. */
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+#ifndef ELF_NFPREG
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+# define ELF_NFPREG 33
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+#endif
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+
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/* See nat/riscv-linux-tdesc.h. */
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struct riscv_gdbarch_features
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diff --git a/gdbserver/linux-riscv-low.cc b/gdbserver/linux-riscv-low.cc
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index 8bf97ea4aa3..1142dbc7b16 100644
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--- a/gdbserver/linux-riscv-low.cc
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+++ b/gdbserver/linux-riscv-low.cc
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@@ -30,6 +30,11 @@
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# define NFPREG 33
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#endif
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+/* Work around musl breakage since version 1.1.24. */
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+#ifndef ELF_NFPREG
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+# define ELF_NFPREG 33
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+#endif
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+
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/* Linux target op definitions for the RISC-V architecture. */
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class riscv_target : public linux_process_target
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--
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2.33.0
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