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From: "Alex Bennée" <alex.bennee@linaro.org>
To: peter.maydell@linaro.org
Cc: "Keith Packard" <keithp@keithp.com>,
	qemu-devel@nongnu.org, "Philippe Mathieu-Daudé" <f4bug@amsat.org>,
	"Alistair Francis" <alistair.francis@wdc.com>,
	"Kito Cheng" <kito.cheng@sifive.com>,
	"Alex Bennée" <alex.bennee@linaro.org>,
	"Laurent Vivier" <laurent@vivier.eu>
Subject: [PULL 27/30] riscv: Add semihosting support for user mode
Date: Fri, 15 Jan 2021 13:08:25 +0000
Message-ID: <20210115130828.23968-28-alex.bennee@linaro.org> (raw)
In-Reply-To: <20210115130828.23968-1-alex.bennee@linaro.org>

From: Kito Cheng <kito.cheng@sifive.com>

This could made testing more easier and ARM/AArch64 has supported on
their linux user mode too, so I think it should be reasonable.

Verified GCC testsuite with newlib/semihosting.

Signed-off-by: Kito Cheng <kito.cheng@sifive.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210107170717.2098982-7-keithp@keithp.com>
Message-Id: <20210108224256.2321-18-alex.bennee@linaro.org>

diff --git a/linux-user/riscv/cpu_loop.c b/linux-user/riscv/cpu_loop.c
index aa9e437875..9665dabb09 100644
--- a/linux-user/riscv/cpu_loop.c
+++ b/linux-user/riscv/cpu_loop.c
@@ -23,6 +23,7 @@
 #include "qemu.h"
 #include "cpu_loop-common.h"
 #include "elf.h"
+#include "hw/semihosting/common-semi.h"
 
 void cpu_loop(CPURISCVState *env)
 {
@@ -91,6 +92,10 @@ void cpu_loop(CPURISCVState *env)
             sigcode = TARGET_SEGV_MAPERR;
             sigaddr = env->badaddr;
             break;
+        case RISCV_EXCP_SEMIHOST:
+            env->gpr[xA0] = do_common_semihosting(cs);
+            env->pc += 4;
+            break;
         case EXCP_DEBUG:
         gdbstep:
             signum = TARGET_SIGTRAP;
-- 
2.20.1



  parent reply index

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-15 13:07 [PULL 00/30] testing, gdbstub and semihosting Alex Bennée
2021-01-15 13:07 ` [PULL 01/30] tests/docker: Remove Debian 9 remnant lines Alex Bennée
2021-01-15 13:08 ` [PULL 02/30] Makefile: add GNU global tags support Alex Bennée
2021-01-15 13:08 ` [PULL 03/30] shippable.yml: Remove jobs duplicated on Gitlab-CI Alex Bennée
2021-01-15 13:08 ` [PULL 04/30] Add newline when generating Dockerfile Alex Bennée
2021-01-15 13:08 ` [PULL 05/30] Makefile: wrap ctags in quiet-command calls Alex Bennée
2021-01-18 18:36   ` Philippe Mathieu-Daudé
2021-01-19 10:00     ` Alex Bennée
2021-01-19 14:24       ` Philippe Mathieu-Daudé
2021-01-19 14:27         ` Daniel P. Berrangé
2021-01-19 14:42           ` Philippe Mathieu-Daudé
2021-01-15 13:08 ` [PULL 06/30] Makefile: wrap etags " Alex Bennée
2021-01-15 13:08 ` [PULL 07/30] Makefile: wrap cscope " Alex Bennée
2021-01-15 13:08 ` [PULL 08/30] docker: expand debian-amd64 image to include tag tools Alex Bennée
2021-01-15 13:08 ` [PULL 09/30] gitlab: move docs and tools build across from Travis Alex Bennée
2021-01-15 13:08 ` [PULL 10/30] Fix build with new yank feature by adding stubs Alex Bennée
2021-01-15 13:08 ` [PULL 11/30] gitlab: migrate the minimal tools and unit tests from Travis Alex Bennée
2021-01-15 13:08 ` [PULL 12/30] scripts/checkpatch.pl: fix git-show invocation to include diffstat Alex Bennée
2021-01-15 13:08 ` [PULL 13/30] test/guest-debug: echo QEMU command as well Alex Bennée
2021-01-15 13:08 ` [PULL 14/30] configure: gate our use of GDB to 8.3.1 or above Alex Bennée
2021-01-15 13:08 ` [PULL 15/30] Revert "tests/tcg/multiarch/Makefile.target: Disable run-gdbstub-sha1 test" Alex Bennée
2021-01-15 13:08 ` [PULL 16/30] gdbstub: implement a softmmu based test Alex Bennée
2021-01-15 13:08 ` [PULL 17/30] gdbstub: add support to Xfer:auxv:read: packet Alex Bennée
2021-01-15 13:08 ` [PULL 18/30] gdbstub: drop CPUEnv from gdb_exit() Alex Bennée
2021-01-15 13:08 ` [PULL 19/30] gdbstub: drop gdbserver_cleanup in favour of gdb_exit Alex Bennée
2021-01-15 13:08 ` [PULL 20/30] gdbstub: ensure we clean-up when terminated Alex Bennée
2021-01-15 13:08 ` [PULL 21/30] target/arm: use official org.gnu.gdb.aarch64.sve layout for registers Alex Bennée
2021-01-19 13:38   ` Claudio Fontana
2021-01-19 13:49     ` Claudio Fontana
2021-01-19 14:50     ` Alex Bennée
2021-01-19 15:11       ` Claudio Fontana
2021-01-19 15:54         ` Alex Bennée
2021-01-19 16:19           ` Luis Machado
2021-01-15 13:08 ` [PULL 22/30] semihosting: Move ARM semihosting code to shared directories Alex Bennée
2021-01-15 13:08 ` [PULL 23/30] semihosting: Change common-semi API to be architecture-independent Alex Bennée
2021-01-15 13:08 ` [PULL 24/30] semihosting: Change internal common-semi interfaces to use CPUState * Alex Bennée
2021-02-17 15:02   ` Peter Maydell
2021-01-15 13:08 ` [PULL 25/30] semihosting: Support SYS_HEAPINFO when env->boot_info is not set Alex Bennée
2021-01-15 13:08 ` [PULL 26/30] riscv: Add semihosting support Alex Bennée
2021-01-15 13:08 ` Alex Bennée [this message]
2021-01-15 13:08 ` [PULL 28/30] semihosting: Implement SYS_ELAPSED and SYS_TICKFREQ Alex Bennée
2021-01-15 13:08 ` [PULL 29/30] semihosting: Implement SYS_TMPNAM Alex Bennée
2021-01-15 13:08 ` [PULL 30/30] semihosting: Implement SYS_ISERROR Alex Bennée
2021-01-15 15:31 ` [PULL 00/30] testing, gdbstub and semihosting Peter Maydell
2021-01-18 12:18   ` Alex Bennée
2021-01-18 13:33     ` Philippe Mathieu-Daudé
2021-01-18 15:38       ` Alex Bennée

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