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[Qemu-devel] [PULL 5/9] Fix breakpoint support in Nios II user-mode emul
From: |
Laurent Vivier |
Subject: |
[Qemu-devel] [PULL 5/9] Fix breakpoint support in Nios II user-mode emulation. |
Date: |
Thu, 7 Mar 2019 11:06:52 +0100 |
From: Sandra Loosemore <address@hidden>
Nios II user-mode emulation was missing handling for EXCP_DEBUG,
making the gdb stub essentially useless. This patch adds the missing
piece. The new code was copied from the existing EXCP_TRAP handling
and is also similar to what other targets (e.g., arm) do with EXCP_DEBUG.
Signed-off-by: Sandra Loosemore <address@hidden>
Reviewed-by: Peter Maydell <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Laurent Vivier <address@hidden>
---
linux-user/nios2/cpu_loop.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/linux-user/nios2/cpu_loop.c b/linux-user/nios2/cpu_loop.c
index b96b1aa1195a..5aa1eca740de 100644
--- a/linux-user/nios2/cpu_loop.c
+++ b/linux-user/nios2/cpu_loop.c
@@ -73,6 +73,12 @@ void cpu_loop(CPUNios2State *env)
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
}
+ case EXCP_DEBUG:
+ info.si_signo = TARGET_SIGTRAP;
+ info.si_errno = 0;
+ info.si_code = TARGET_TRAP_BRKPT;
+ queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
+ break;
case 0xaa:
switch (env->regs[R_PC]) {
/*case 0x1000:*/ /* TODO:__kuser_helper_version */
--
2.20.1
- [Qemu-devel] [PULL 0/9] Linux user for 4.0 patches, Laurent Vivier, 2019/03/07
- [Qemu-devel] [PULL 4/9] linux-user: fix emulation of accept4/getpeername/getsockname/recvfrom syscalls, Laurent Vivier, 2019/03/07
- [Qemu-devel] [PULL 2/9] linux-user: Add ELF_PLATFORM for arm, Laurent Vivier, 2019/03/07
- [Qemu-devel] [PULL 3/9] linux-user: Fix ELF_PLATFORM for aarch64_be-linux-user, Laurent Vivier, 2019/03/07
- [Qemu-devel] [PULL 6/9] linux-user: don't short-circuit read with zero length, Laurent Vivier, 2019/03/07
- [Qemu-devel] [PULL 7/9] linux-user: fix "may be used uninitialized" warnings, Laurent Vivier, 2019/03/07
- [Qemu-devel] [PULL 8/9] linux-user: Nicer strace output of chroot() syscall, Laurent Vivier, 2019/03/07
- [Qemu-devel] [PULL 5/9] Fix breakpoint support in Nios II user-mode emulation.,
Laurent Vivier <=
- [Qemu-devel] [PULL 1/9] linux-user: fix recvmsg emulation, Laurent Vivier, 2019/03/07
- [Qemu-devel] [PULL 9/9] linux-user: add new netlink types, Laurent Vivier, 2019/03/07
- Re: [Qemu-devel] [PULL 0/9] Linux user for 4.0 patches, Peter Maydell, 2019/03/08