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* include: Make headers more self-containedMarkus Armbruster2019-08-161-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Back in 2016, we discussed[1] rules for headers, and these were generally liked: 1. Have a carefully curated header that's included everywhere first. We got that already thanks to Peter: osdep.h. 2. Headers should normally include everything they need beyond osdep.h. If exceptions are needed for some reason, they must be documented in the header. If all that's needed from a header is typedefs, put those into qemu/typedefs.h instead of including the header. 3. Cyclic inclusion is forbidden. This patch gets include/ closer to obeying 2. It's actually extracted from my "[RFC] Baby steps towards saner headers" series[2], which demonstrates a possible path towards checking 2 automatically. It passes the RFC test there. [1] Message-ID: <87h9g8j57d.fsf@blackfin.pond.sub.org> https://lists.nongnu.org/archive/html/qemu-devel/2016-03/msg03345.html [2] Message-Id: <20190711122827.18970-1-armbru@redhat.com> https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg02715.html Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <20190812052359.30071-2-armbru@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
* semihosting: split console_out into string and char versionsAlex Bennée2019-06-121-6/+19
| | | | | | | | | This is ostensibly to avoid the weirdness of len looking like it might come from a guest and sometimes being used. While we are at it fix up the error checking for the arm-linux-user implementation of the API which got flagged up by Coverity (CID 1401700). Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
* Clean up a few header guard symbolsMarkus Armbruster2019-06-121-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 58ea30f5145 "Clean up header guards that don't match their file name" messed up contrib/elf2dmp/qemu_elf.h and tests/migration/migration-test.h. It missed target/cris/opcode-cris.h and tests/uefi-test-tools/UefiTestToolsPkg/Include/Guid/BiosTablesTest.h due to the scripts/clean-header-guards.pl bug fixed in the previous commit. Commit a8b991b52dc "Clean up ill-advised or unusual header guards" missed include/hw/xen/io/ring.h for the same reason. Commit 3979fca4b69 "disas: Rename include/disas/bfd.h back to include/disas/dis-asm.h" neglected to update the guard symbol for the rename. Commit a331c6d7741 "semihosting: implement a semihosting console" created include/hw/semihosting/console.h with an ill-advised guard symbol. Clean them up. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190604181618.19980-4-armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
* semihosting: enable chardev backed output for consoleAlex Bennée2019-05-281-0/+7
| | | | | | | | | It will be useful for a number of use-cases to be able to re-direct output to a file like we do with serial output. This does the wiring to allow us to treat then semihosting console like just another character output device. Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
* semihosting: implement a semihosting consoleAlex Bennée2019-05-281-0/+38
| | | | | | | This provides two functions for handling console output that handle the common backend behaviour for semihosting. Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
* semihosting: move semihosting configuration into its own directoryAlex Bennée2019-05-281-0/+66
In preparation for having some more common semihosting code let's excise the current config magic from vl.c into its own file. We shall later add more conditionals to the build configurations so we can avoid building this if we don't need it. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>