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>
99 lines
2.8 KiB
Plaintext
99 lines
2.8 KiB
Plaintext
config BR2_PACKAGE_HOST_GDB_ARCH_SUPPORTS
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bool
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default y
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# The ARC version needs C++11, thus gcc >= 4.8, like gdb-8.0.x
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depends on BR2_HOST_GCC_AT_LEAST_4_8 || !BR2_arc
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depends on !((BR2_arm || BR2_armeb) && BR2_BINFMT_FLAT)
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depends on !BR2_microblaze
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depends on !BR2_nios2
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depends on !BR2_or1k
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comment "Host GDB Options"
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depends on !BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY
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depends on BR2_PACKAGE_HOST_GDB_ARCH_SUPPORTS
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config BR2_PACKAGE_HOST_GDB
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bool "Build cross gdb for the host"
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# When the external toolchain gdbserver is used, we shouldn't
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# allow to build a cross-gdb, as the one of the external
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# toolchain should be used.
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depends on !BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY
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depends on BR2_PACKAGE_HOST_GDB_ARCH_SUPPORTS
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help
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Build a cross gdb that runs on the host machine and debugs
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programs running on the target. It requires 'gdbserver'
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installed on the target, see BR2_PACKAGE_GDB_SERVER to
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enable it.
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if BR2_PACKAGE_HOST_GDB
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config BR2_PACKAGE_HOST_GDB_TUI
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bool "TUI support"
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help
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This option enables terminal user interface (TUI) for gdb
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config BR2_PACKAGE_HOST_GDB_PYTHON
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bool "Python support"
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help
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This option enables the Python support in the cross gdb.
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config BR2_PACKAGE_HOST_GDB_SIM
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bool "Simulator support"
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depends on !BR2_arc
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help
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This option enables the simulator support in the cross gdb.
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choice
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prompt "GDB debugger Version"
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default BR2_GDB_VERSION_7_11
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depends on !BR2_arc
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help
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Select the version of gdb you wish to use.
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config BR2_GDB_VERSION_7_10
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bool "gdb 7.10.x"
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config BR2_GDB_VERSION_7_11
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bool "gdb 7.11.x"
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config BR2_GDB_VERSION_7_12
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bool "gdb 7.12.x"
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config BR2_GDB_VERSION_8_0
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bool "gdb 8.0.x"
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# Needs a C++11 compiler
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depends on BR2_HOST_GCC_AT_LEAST_4_8
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config BR2_GDB_VERSION_8_1
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bool "gdb 8.1.x"
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# Needs a C++11 compiler
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depends on BR2_HOST_GCC_AT_LEAST_4_8
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endchoice
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endif
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# Tells whether the currently selected gdb version requires C++11
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# support in the toolchain. When host-gdb is not enabled, the target
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# gdb built is 7.11, which doesn't require C++11 support. So it's only
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# if host-gdb is built, with the version set to 8.0 or 8.1 that C++11
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# support is needed in the toolchain to build gdb for the target.
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#
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# Even though this option is related to target gdb dependencies, we
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# keep it next to the BR2_GDB_VERSION so that they are kept in sync.
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config BR2_PACKAGE_GDB_NEEDS_CXX11
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bool
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default y if BR2_GDB_VERSION_8_0
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default y if BR2_GDB_VERSION_8_1
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# If cross-gdb is not enabled, the latest working version is chosen.
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config BR2_GDB_VERSION
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string
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default "arc-2018.03-rc2-gdb" if BR2_arc
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default "7.10.1" if BR2_GDB_VERSION_7_10
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default "7.11.1" if BR2_GDB_VERSION_7_11 || !BR2_PACKAGE_HOST_GDB
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default "7.12.1" if BR2_GDB_VERSION_7_12
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default "8.0.1" if BR2_GDB_VERSION_8_0
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default "8.1" if BR2_GDB_VERSION_8_1
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depends on BR2_PACKAGE_GDB || BR2_PACKAGE_HOST_GDB
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