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gdb: drop support for Microblaze

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Microblaze support was never upstreamed in gdb. We currently use a gdb
from the Xilinx Github repository, but this gdb is based on 7.6, and
has never been updated in the last 4 years. There are no other active
branches at https://github.com/Xilinx/gdb/branches.

Xilinx has a slightly newer gdb, based on 7.7, available at
https://github.com/Xilinx/meta-xilinx/tree/master/recipes-microblaze/gdb. However,
it's apparently only available in the form of stack of big patches
(https://github.com/Xilinx/meta-xilinx/tree/master/recipes-microblaze/gdb/files).

Currently, gdb on Microblaze fails to build in various conditions:

 * Against glibc, with "error: conflicting types for 'ps_lgetfpregs'"

 * Against musl, with "error: unknown type name 'elf_gregset_t'"

While those issues can probably be fixed, the fact that there is no
active upstream significantly reduces the incentive to fix those
problems.

Therefore, let's drop support for gdb on Microblaze entirely.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Acked-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
This commit is contained in:
Thomas Petazzoni 2017-08-03 23:58:12 +02:00 committed by Arnout Vandecappelle (Essensium/Mind)
parent 5a5e76381f
commit dcfdf82e53
4 changed files with 5 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
package/gdb/Config.in
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@ -3,6 +3,7 @@ config BR2_PACKAGE_GDB_ARCH_SUPPORTS
default y
depends on !((BR2_arm || BR2_armeb) && BR2_BINFMT_FLAT)
depends on !BR2_bfin
depends on !BR2_microblaze
depends on !BR2_nios2
depends on !BR2_or1k
@ -47,11 +48,11 @@ config BR2_PACKAGE_GDB_SERVER
config BR2_PACKAGE_GDB_DEBUGGER
bool "full debugger"
depends on BR2_USE_WCHAR
depends on !BR2_sh && !BR2_microblaze
depends on !BR2_sh
select BR2_PACKAGE_NCURSES
comment "full gdb on target needs a toolchain w/ wchar"
depends on !BR2_sh && !BR2_microblaze
depends on !BR2_sh
depends on !BR2_USE_WCHAR
if BR2_PACKAGE_GDB_DEBUGGER

5
package/gdb/Config.in.host
View File

@ -7,6 +7,7 @@ config BR2_PACKAGE_HOST_GDB
# toolchain should be used.
depends on !BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY
depends on !((BR2_arm || BR2_armeb) && BR2_BINFMT_FLAT)
depends on !BR2_microblaze
depends on !BR2_nios2
depends on !BR2_or1k
help
@ -29,7 +30,7 @@ config BR2_PACKAGE_HOST_GDB_PYTHON
config BR2_PACKAGE_HOST_GDB_SIM
bool "Simulator support"
depends on !BR2_arc && !BR2_microblaze
depends on !BR2_arc
help
This option enables the simulator support in the cross gdb.
@ -37,7 +38,6 @@ choice
prompt "GDB debugger Version"
default BR2_GDB_VERSION_7_11
depends on !BR2_arc
depends on !BR2_microblaze
help
Select the version of gdb you wish to use.
@ -65,7 +65,6 @@ endif
config BR2_GDB_VERSION
string
default "arc-2017.03-gdb" if BR2_arc
default "6be65fb56ea6694a9260733a536a023a1e2d4d57" if BR2_microblaze
default "7.10.1" if BR2_GDB_VERSION_7_10
default "7.11.1" if BR2_GDB_VERSION_7_11 || !BR2_PACKAGE_HOST_GDB
default "7.12.1" if BR2_GDB_VERSION_7_12

1
package/gdb/gdb.hash
View File

@ -5,5 +5,4 @@ sha512 0ac8d0a495103611ef41167a08313a010dce6ca4c6d827cbe8558a0c1a1a8a6bfa53f1b7
sha512 e4044bdd162cbf95044ec1eaa44d2fa62a33e051bdbbacbc97afd4dfb07bae1bea514381fc1966aede89d6796ef2377a15748a93d95e2ad494c8497db489e886 gdb-8.0.tar.xz
# Locally calculated (fetched from Github)
sha512 0a467091d4b01fbecabb4b8da1cb743025c70e7f4874a0b5c8fa2ec623569a39bde6762b91806de0be6e63711aeb6909715cfbe43860de73d8aec6159a9f10a7 gdb-6be65fb56ea6694a9260733a536a023a1e2d4d57.tar.gz
sha512 8ec849a5ea1c16f104c51c4813c35ab229e460eef0025967673b87316f62b5171f05448cda018464914d43d2da50b2902eb7f9f060d0af1368a9db111f959668 gdb-arc-2017.03-gdb.tar.gz

6
package/gdb/gdb.mk
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@ -14,12 +14,6 @@ GDB_SOURCE = gdb-$(GDB_VERSION).tar.gz
GDB_FROM_GIT = y
endif
ifeq ($(BR2_microblaze),y)
GDB_SITE = $(call github,Xilinx,gdb,$(GDB_VERSION))
GDB_SOURCE = gdb-$(GDB_VERSION).tar.gz
GDB_FROM_GIT = y
endif
GDB_LICENSE = GPL-2.0+, LGPL-2.0+, GPL-3.0+, LGPL-3.0+
GDB_LICENSE_FILES = COPYING COPYING.LIB COPYING3 COPYING3.LIB