c2a39ba528
https://sourceware.org/ml/gdb-announce/2018/msg00001.html gdb 8.1 has a new optional dependency on mpfr, which according to the NEWS file: GDB now uses the GNU MPFR library, if available, to emulate target floating-point arithmetic during expression evaluation when the target uses different floating-point formats than the host. At least version 3.1 of GNU MPFR is required. So for the target gdb, this is unnecessary, and therefore we forcefully disable mpfr support by passing --without-mpfr. For the host gdb, it would potentially be useful, but since it's a new feature that isn't essential, we for now keep it disabled as well. An option may be added later if needed. To avoid gnulib issues with uClibc/musl, we need to pass additional configure/make variables, like is done in OpenEmbedded [1]. [1] http://git.openembedded.org/openembedded-core/tree/meta/recipes-devtools/gdb/gdb_8.1.bb?id=02664a8dcd1ebb6cd77248e1b97a78390ea06033#n9 We re-add the same patches as the ones present for gdb 8.0.1, except 0004-nat-linux-ptrace.c-add-missing-gdb_byte-cast.patch, which was merged upstream. Signed-off-by: Romain Naour <romain.naour@gmail.com> [Thomas: change mpfr handling.] Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
44 lines
1.2 KiB
Diff
44 lines
1.2 KiB
Diff
From dfe4a40bc9d2fc1fd1b1a11ed733a0c0a1f59f3c Mon Sep 17 00:00:00 2001
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From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Date: Sat, 3 Jun 2017 21:23:52 +0200
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Subject: [PATCH] sh/ptrace: Define pt_{dsp,}regs uapi_pt_{dsp,}regs on
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!GLIBC systems
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Fixes a pt_{dsp,}regs redefinition when building with the musl C library
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on SuperH.
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Inspired by
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http://git.yoctoproject.org/clean/cgit.cgi/poky/plain/meta/recipes-devtools/gdb/gdb/0004-ppc-ptrace-Define-pt_regs-uapi_pt_regs-on-GLIBC-syst.patch,
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adapted for SuperH.
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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[Rebase on gdb 8.0]
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Signed-off-by: Romain Naour <romain.naour@gmail.com>
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---
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gdb/gdbserver/linux-sh-low.c | 8 ++++++++
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1 file changed, 8 insertions(+)
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diff --git a/gdb/gdbserver/linux-sh-low.c b/gdb/gdbserver/linux-sh-low.c
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index ac084c9..08e104a 100644
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--- a/gdb/gdbserver/linux-sh-low.c
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+++ b/gdb/gdbserver/linux-sh-low.c
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@@ -27,7 +27,15 @@ extern const struct target_desc *tdesc_sh;
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#include <sys/reg.h>
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#endif
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+#if !defined(__GLIBC__)
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+# define pt_regs uapi_pt_regs
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+# define pt_dspregs uapi_pt_dspregs
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+#endif
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#include <asm/ptrace.h>
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+#if !defined(__GLIBC__)
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+# undef pt_regs
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+# undef pt_dspregs
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+#endif
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#define sh_num_regs 41
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--
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2.9.4
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