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[Qemu-devel] [PATCH 1/7] linux-user:Support for MIPS64 user mode emulati
From: |
khansa |
Subject: |
[Qemu-devel] [PATCH 1/7] linux-user:Support for MIPS64 user mode emulation in QEMU |
Date: |
Tue, 27 Sep 2011 09:17:02 +0500 |
From: Khansa Butt <address@hidden>
Signed-off-by: Khansa Butt <address@hidden>
---
configure | 1 +
default-configs/mips64-linux-user.mak | 1 +
linux-user/main.c | 21 +++++++++++++++++++--
linux-user/mips64/syscall.h | 2 ++
linux-user/signal.c | 2 --
5 files changed, 23 insertions(+), 4 deletions(-)
create mode 100644 default-configs/mips64-linux-user.mak
diff --git a/configure b/configure
index 9ab3ab4..5e45a43 100755
--- a/configure
+++ b/configure
@@ -891,6 +891,7 @@ m68k-linux-user \
microblaze-linux-user \
microblazeel-linux-user \
mips-linux-user \
+mips64-linux-user \
mipsel-linux-user \
ppc-linux-user \
ppc64-linux-user \
diff --git a/default-configs/mips64-linux-user.mak
b/default-configs/mips64-linux-user.mak
new file mode 100644
index 0000000..1598bfc
--- /dev/null
+++ b/default-configs/mips64-linux-user.mak
@@ -0,0 +1 @@
+# Default configuration for mips64-linux-user
diff --git a/linux-user/main.c b/linux-user/main.c
index 89a51d7..1cc564d 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -2068,7 +2068,8 @@ static int do_store_exclusive(CPUMIPSState *env)
void cpu_loop(CPUMIPSState *env)
{
target_siginfo_t info;
- int trapnr, ret;
+ int trapnr;
+ abi_long ret;
unsigned int syscall_num;
for(;;) {
@@ -2077,8 +2078,23 @@ void cpu_loop(CPUMIPSState *env)
cpu_exec_end(env);
switch(trapnr) {
case EXCP_SYSCALL:
- syscall_num = env->active_tc.gpr[2] - 4000;
env->active_tc.PC += 4;
+#if defined(TARGET_MIPS64)
+ syscall_num = env->active_tc.gpr[2] - 5000;
+ /* MIPS64 has eight argument registers so there is
+ * no need to get arguments from stack
+ */
+ ret = do_syscall(env, env->active_tc.gpr[2],
+ env->active_tc.gpr[4],
+ env->active_tc.gpr[5],
+ env->active_tc.gpr[6],
+ env->active_tc.gpr[7],
+ env->active_tc.gpr[8],
+ env->active_tc.gpr[9],
+ env->active_tc.gpr[10],
+ env->active_tc.gpr[11]);
+#else
+ syscall_num = env->active_tc.gpr[2] - 4000;
if (syscall_num >= sizeof(mips_syscall_args)) {
ret = -TARGET_ENOSYS;
} else {
@@ -2105,6 +2121,7 @@ void cpu_loop(CPUMIPSState *env)
env->active_tc.gpr[7],
arg5, arg6, arg7, arg8);
}
+#endif
if (ret == -TARGET_QEMU_ESIGRETURN) {
/* Returning from a successful sigreturn syscall.
Avoid clobbering register state. */
diff --git a/linux-user/mips64/syscall.h b/linux-user/mips64/syscall.h
index 668a2b9..96f03da 100644
--- a/linux-user/mips64/syscall.h
+++ b/linux-user/mips64/syscall.h
@@ -218,4 +218,6 @@ struct target_pt_regs {
+#define TARGET_QEMU_ESIGRETURN 255
+
#define UNAME_MACHINE "mips64"
diff --git a/linux-user/signal.c b/linux-user/signal.c
index 89276eb..59c3c88 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -2415,8 +2415,6 @@ void sparc64_get_context(CPUSPARCState *env)
#endif
#elif defined(TARGET_ABI_MIPSN64)
-# warning signal handling not implemented
-
static void setup_frame(int sig, struct target_sigaction *ka,
target_sigset_t *set, CPUState *env)
{
--
1.7.3.4
- [Qemu-devel] [PATCH 0/7] MIPS64 user mode emulation in QEMU with Cavium specific instruction support, khansa, 2011/09/27
- [Qemu-devel] [PATCH 1/7] linux-user:Support for MIPS64 user mode emulation in QEMU,
khansa <=
- [Qemu-devel] [PATCH 2/7] target-mips:enabling of 64 bit user mode and floating point operations, khansa, 2011/09/27
- [Qemu-devel] [PATCH 3/7] linux-user:Signal handling for MIPS64, khansa, 2011/09/27
- [Qemu-devel] [PATCH 4/7] target-mips:Octeon cpu definition, khansa, 2011/09/27
- [Qemu-devel] [PATCH 5/7] target-mips:Support for Cavium specific instructions, khansa, 2011/09/27
- [Qemu-devel] [PATCH 6/7] Addition of Cavium instructions in disassembler, khansa, 2011/09/27