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From: "Alex Bennée" <alex.bennee@linaro.org>
To: qemu-devel@nongnu.org
Cc: "Keith Packard" <keithp@keithp.com>,
	"Alex Bennée" <alex.bennee@linaro.org>
Subject: [PATCH  v1 20/20] semihosting: Implement SYS_ISERROR
Date: Fri,  8 Jan 2021 22:42:56 +0000	[thread overview]
Message-ID: <20210108224256.2321-21-alex.bennee@linaro.org> (raw)
In-Reply-To: <20210108224256.2321-1-alex.bennee@linaro.org>

From: Keith Packard <keithp@keithp.com>

Part of Semihosting for AArch32 and AArch64 Release 2.0

Signed-off-by: Keith Packard <keithp@keithp.com>
Message-Id: <20210107170717.2098982-10-keithp@keithp.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 hw/semihosting/common-semi.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/hw/semihosting/common-semi.c b/hw/semihosting/common-semi.c
index a631904fb0..23c6e3edcb 100644
--- a/hw/semihosting/common-semi.c
+++ b/hw/semihosting/common-semi.c
@@ -59,6 +59,7 @@
 #define TARGET_SYS_WRITE       0x05
 #define TARGET_SYS_READ        0x06
 #define TARGET_SYS_READC       0x07
+#define TARGET_SYS_ISERROR     0x08
 #define TARGET_SYS_ISTTY       0x09
 #define TARGET_SYS_SEEK        0x0a
 #define TARGET_SYS_FLEN        0x0c
@@ -967,6 +968,9 @@ target_ulong do_common_semihosting(CPUState *cs)
         return guestfd_fns[gf->type].readfn(cs, gf, arg1, len);
     case TARGET_SYS_READC:
         return qemu_semihosting_console_inc(cs->env_ptr);
+    case TARGET_SYS_ISERROR:
+        GET_ARG(0);
+        return (target_long) arg0 < 0 ? 1 : 0;
     case TARGET_SYS_ISTTY:
         GET_ARG(0);
 
-- 
2.20.1



      parent reply	other threads:[~2021-01-08 23:02 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-08 22:42 [PATCH v1 00/20] gdbstub, semihosting and test/tool updates (pre PR) Alex Bennée
2021-01-08 22:42 ` [PATCH v1 01/20] tests/docker: Remove Debian 9 remnant lines Alex Bennée
2021-01-08 22:42 ` [PATCH v1 02/20] test/guest-debug: echo QEMU command as well Alex Bennée
2021-01-11 15:27   ` Philippe Mathieu-Daudé
2021-01-08 22:42 ` [PATCH v1 03/20] configure: gate our use of GDB to 8.3.1 or above Alex Bennée
2021-01-08 22:42 ` [PATCH v1 04/20] Revert "tests/tcg/multiarch/Makefile.target: Disable run-gdbstub-sha1 test" Alex Bennée
2021-01-08 22:42 ` [PATCH v1 05/20] gdbstub: implement a softmmu based test Alex Bennée
2021-01-08 22:42 ` [PATCH v1 06/20] gdbstub: add support to Xfer:auxv:read: packet Alex Bennée
2021-01-08 22:42 ` [PATCH v1 07/20] gdbstub: drop CPUEnv from gdb_exit() Alex Bennée
2021-01-08 22:42 ` [PATCH v1 08/20] gdbstub: drop gdbserver_cleanup in favour of gdb_exit Alex Bennée
2021-01-08 22:42 ` [PATCH v1 09/20] gdbstub: ensure we clean-up when terminated Alex Bennée
2021-01-08 22:42 ` [PATCH v1 10/20] target/arm: use official org.gnu.gdb.aarch64.sve layout for registers Alex Bennée
2021-01-11 13:20   ` Luis Machado
2021-01-11 14:36     ` Alex Bennée
2021-01-11 14:50       ` Luis Machado
2021-01-08 22:42 ` [PATCH v1 11/20] Makefile: add GNU global tags support Alex Bennée
2021-01-08 22:42 ` [PATCH v1 12/20] semihosting: Move ARM semihosting code to shared directories Alex Bennée
2021-01-11 15:30   ` Philippe Mathieu-Daudé
2021-01-11 15:32     ` Philippe Mathieu-Daudé
2021-01-11 15:46   ` Philippe Mathieu-Daudé
2021-01-08 22:42 ` [PATCH v1 13/20] semihosting: Change common-semi API to be architecture-independent Alex Bennée
2021-01-11 15:34   ` Philippe Mathieu-Daudé
2021-01-08 22:42 ` [PATCH v1 14/20] semihosting: Change internal common-semi interfaces to use CPUState * Alex Bennée
2021-01-08 22:42 ` [PATCH v1 15/20] semihosting: Support SYS_HEAPINFO when env->boot_info is not set Alex Bennée
2021-01-08 22:42 ` [PATCH v1 16/20] riscv: Add semihosting support Alex Bennée
2021-01-08 22:42   ` Alex Bennée
2021-01-08 23:30   ` Alistair Francis
2021-01-08 23:30     ` Alistair Francis
2021-01-09  0:44     ` Keith Packard via
2021-01-09  0:44       ` Keith Packard
2021-01-08 22:42 ` [PATCH v1 17/20] riscv: Add semihosting support for user mode Alex Bennée
2021-01-08 23:32   ` Alistair Francis
2021-01-11 15:48   ` Philippe Mathieu-Daudé
2021-01-08 22:42 ` [PATCH v1 18/20] semihosting: Implement SYS_ELAPSED and SYS_TICKFREQ Alex Bennée
2021-01-08 22:42 ` [PATCH v1 19/20] semihosting: Implement SYS_TMPNAM Alex Bennée
2021-01-08 22:42 ` Alex Bennée [this message]

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