summaryrefslogtreecommitdiffstats
path: root/linux-user
diff options
context:
space:
mode:
Diffstat (limited to 'linux-user')
-rw-r--r--linux-user/elfload.c17
-rw-r--r--linux-user/linuxload.c3
-rw-r--r--linux-user/m68k-sim.c3
-rw-r--r--linux-user/m68k/target_cpu.h4
-rw-r--r--linux-user/main.c158
-rw-r--r--linux-user/qemu.h2
-rw-r--r--linux-user/signal.c146
-rw-r--r--linux-user/syscall.c163
-rw-r--r--linux-user/syscall_defs.h18
-rw-r--r--linux-user/vm86.c27
10 files changed, 381 insertions, 160 deletions
diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index c0687e3b38..d2380b6ccb 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -352,6 +352,9 @@ enum
ARM_HWCAP_ARM_VFPv3D16 = 1 << 13,
};
+#ifndef TARGET_AARCH64
+/* The commpage only exists for 32 bit kernels */
+
#define TARGET_HAS_VALIDATE_GUEST_SPACE
/* Return 1 if the proposed guest space is suitable for the guest.
* Return 0 if the proposed guest space isn't suitable, but another
@@ -411,7 +414,7 @@ static int validate_guest_space(unsigned long guest_base,
return 1; /* All good */
}
-
+#endif
#define ELF_HWCAP get_elf_hwcap()
@@ -1073,7 +1076,7 @@ struct exec
#define TARGET_ELF_PAGESTART(_v) ((_v) & ~(unsigned long)(TARGET_ELF_EXEC_PAGESIZE-1))
#define TARGET_ELF_PAGEOFFSET(_v) ((_v) & (TARGET_ELF_EXEC_PAGESIZE-1))
-#define DLINFO_ITEMS 13
+#define DLINFO_ITEMS 14
static inline void memcpy_fromfs(void * to, const void * from, unsigned long n)
{
@@ -2621,7 +2624,8 @@ static int write_note(struct memelfnote *men, int fd)
static void fill_thread_info(struct elf_note_info *info, const CPUArchState *env)
{
- TaskState *ts = (TaskState *)env->opaque;
+ CPUState *cpu = ENV_GET_CPU((CPUArchState *)env);
+ TaskState *ts = (TaskState *)cpu->opaque;
struct elf_thread_status *ets;
ets = g_malloc0(sizeof (*ets));
@@ -2650,8 +2654,8 @@ static int fill_note_info(struct elf_note_info *info,
long signr, const CPUArchState *env)
{
#define NUMNOTES 3
- CPUState *cpu = NULL;
- TaskState *ts = (TaskState *)env->opaque;
+ CPUState *cpu = ENV_GET_CPU((CPUArchState *)env);
+ TaskState *ts = (TaskState *)cpu->opaque;
int i;
info->notes = g_malloc0(NUMNOTES * sizeof (struct memelfnote));
@@ -2775,7 +2779,8 @@ static int write_note_info(struct elf_note_info *info, int fd)
*/
static int elf_core_dump(int signr, const CPUArchState *env)
{
- const TaskState *ts = (const TaskState *)env->opaque;
+ const CPUState *cpu = ENV_GET_CPU((CPUArchState *)env);
+ const TaskState *ts = (const TaskState *)cpu->opaque;
struct vm_area_struct *vma = NULL;
char corefile[PATH_MAX];
struct elf_note_info info;
diff --git a/linux-user/linuxload.c b/linux-user/linuxload.c
index f2997c2f4b..506e837ae1 100644
--- a/linux-user/linuxload.c
+++ b/linux-user/linuxload.c
@@ -89,8 +89,7 @@ static int prepare_binprm(struct linux_binprm *bprm)
abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
abi_ulong stringp, int push_ptr)
{
- CPUArchState *env = thread_cpu->env_ptr;
- TaskState *ts = (TaskState *)env->opaque;
+ TaskState *ts = (TaskState *)thread_cpu->opaque;
int n = sizeof(abi_ulong);
abi_ulong envp;
abi_ulong argv;
diff --git a/linux-user/m68k-sim.c b/linux-user/m68k-sim.c
index d5926eec4b..1994e40000 100644
--- a/linux-user/m68k-sim.c
+++ b/linux-user/m68k-sim.c
@@ -98,6 +98,7 @@ static int translate_openflags(int flags)
#define ARG(x) tswap32(args[x])
void do_m68k_simcall(CPUM68KState *env, int nr)
{
+ M68kCPU *cpu = m68k_env_get_cpu(env);
uint32_t *args;
args = (uint32_t *)(unsigned long)(env->aregs[7] + 4);
@@ -165,6 +166,6 @@ void do_m68k_simcall(CPUM68KState *env, int nr)
check_err(env, lseek(ARG(0), (int32_t)ARG(1), ARG(2)));
break;
default:
- cpu_abort(env, "Unsupported m68k sim syscall %d\n", nr);
+ cpu_abort(CPU(cpu), "Unsupported m68k sim syscall %d\n", nr);
}
}
diff --git a/linux-user/m68k/target_cpu.h b/linux-user/m68k/target_cpu.h
index cad9c90dd0..bb4d3fabe1 100644
--- a/linux-user/m68k/target_cpu.h
+++ b/linux-user/m68k/target_cpu.h
@@ -31,7 +31,9 @@ static inline void cpu_clone_regs(CPUM68KState *env, target_ulong newsp)
static inline void cpu_set_tls(CPUM68KState *env, target_ulong newtls)
{
- TaskState *ts = env->opaque;
+ CPUState *cs = CPU(m68k_env_get_cpu(env));
+ TaskState *ts = cs->opaque;
+
ts->tp_value = newtls;
}
diff --git a/linux-user/main.c b/linux-user/main.c
index dee10841c3..947358a886 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -483,17 +483,17 @@ static void arm_kernel_cmpxchg64_helper(CPUARMState *env)
addr = env->regs[2];
if (get_user_u64(oldval, env->regs[0])) {
- env->cp15.c6_data = env->regs[0];
+ env->exception.vaddress = env->regs[0];
goto segv;
};
if (get_user_u64(newval, env->regs[1])) {
- env->cp15.c6_data = env->regs[1];
+ env->exception.vaddress = env->regs[1];
goto segv;
};
if (get_user_u64(val, addr)) {
- env->cp15.c6_data = addr;
+ env->exception.vaddress = addr;
goto segv;
}
@@ -501,7 +501,7 @@ static void arm_kernel_cmpxchg64_helper(CPUARMState *env)
val = newval;
if (put_user_u64(val, addr)) {
- env->cp15.c6_data = addr;
+ env->exception.vaddress = addr;
goto segv;
};
@@ -523,7 +523,7 @@ segv:
info.si_errno = 0;
/* XXX: check env->error_code */
info.si_code = TARGET_SEGV_MAPERR;
- info._sifields._sigfault._addr = env->cp15.c6_data;
+ info._sifields._sigfault._addr = env->exception.vaddress;
queue_signal(env, info.si_signo, &info);
end_exclusive();
@@ -620,14 +620,14 @@ static int do_strex(CPUARMState *env)
abort();
}
if (segv) {
- env->cp15.c6_data = addr;
+ env->exception.vaddress = addr;
goto done;
}
if (size == 3) {
uint32_t valhi;
segv = get_user_u32(valhi, addr + 4);
if (segv) {
- env->cp15.c6_data = addr + 4;
+ env->exception.vaddress = addr + 4;
goto done;
}
val = deposit64(val, 32, 32, valhi);
@@ -650,14 +650,14 @@ static int do_strex(CPUARMState *env)
break;
}
if (segv) {
- env->cp15.c6_data = addr;
+ env->exception.vaddress = addr;
goto done;
}
if (size == 3) {
val = env->regs[(env->exclusive_info >> 12) & 0xf];
segv = put_user_u32(val, addr + 4);
if (segv) {
- env->cp15.c6_data = addr + 4;
+ env->exception.vaddress = addr + 4;
goto done;
}
}
@@ -685,7 +685,7 @@ void cpu_loop(CPUARMState *env)
switch(trapnr) {
case EXCP_UDEF:
{
- TaskState *ts = env->opaque;
+ TaskState *ts = cs->opaque;
uint32_t opcode;
int rc;
@@ -832,12 +832,14 @@ void cpu_loop(CPUARMState *env)
case EXCP_INTERRUPT:
/* just indicate that signals should be handled asap */
break;
+ case EXCP_STREX:
+ if (!do_strex(env)) {
+ break;
+ }
+ /* fall through for segv */
case EXCP_PREFETCH_ABORT:
- addr = env->cp15.c6_insn;
- goto do_segv;
case EXCP_DATA_ABORT:
- addr = env->cp15.c6_data;
- do_segv:
+ addr = env->exception.vaddress;
{
info.si_signo = SIGSEGV;
info.si_errno = 0;
@@ -865,12 +867,6 @@ void cpu_loop(CPUARMState *env)
if (do_kernel_trap(env))
goto error;
break;
- case EXCP_STREX:
- if (do_strex(env)) {
- addr = env->cp15.c6_data;
- goto do_segv;
- }
- break;
default:
error:
fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
@@ -933,7 +929,7 @@ static int do_strex_a64(CPUARMState *env)
abort();
}
if (segv) {
- env->cp15.c6_data = addr;
+ env->exception.vaddress = addr;
goto error;
}
if (val != env->exclusive_val) {
@@ -946,7 +942,7 @@ static int do_strex_a64(CPUARMState *env)
segv = get_user_u64(val, addr + 8);
}
if (segv) {
- env->cp15.c6_data = addr + (size == 2 ? 4 : 8);
+ env->exception.vaddress = addr + (size == 2 ? 4 : 8);
goto error;
}
if (val != env->exclusive_high) {
@@ -981,7 +977,7 @@ static int do_strex_a64(CPUARMState *env)
segv = put_user_u64(val, addr + 8);
}
if (segv) {
- env->cp15.c6_data = addr + (size == 2 ? 4 : 8);
+ env->exception.vaddress = addr + (size == 2 ? 4 : 8);
goto error;
}
}
@@ -1037,12 +1033,14 @@ void cpu_loop(CPUARMState *env)
info._sifields._sigfault._addr = env->pc;
queue_signal(env, info.si_signo, &info);
break;
+ case EXCP_STREX:
+ if (!do_strex_a64(env)) {
+ break;
+ }
+ /* fall through for segv */
case EXCP_PREFETCH_ABORT:
- addr = env->cp15.c6_insn;
- goto do_segv;
case EXCP_DATA_ABORT:
- addr = env->cp15.c6_data;
- do_segv:
+ addr = env->exception.vaddress;
info.si_signo = SIGSEGV;
info.si_errno = 0;
/* XXX: check env->error_code */
@@ -1060,12 +1058,6 @@ void cpu_loop(CPUARMState *env)
queue_signal(env, info.si_signo, &info);
}
break;
- case EXCP_STREX:
- if (do_strex_a64(env)) {
- addr = env->cp15.c6_data;
- goto do_segv;
- }
- break;
default:
fprintf(stderr, "qemu: unhandled CPU exception 0x%x - aborting\n",
trapnr);
@@ -1577,11 +1569,11 @@ void cpu_loop(CPUPPCState *env)
/* Just go on */
break;
case POWERPC_EXCP_CRITICAL: /* Critical input */
- cpu_abort(env, "Critical interrupt while in user mode. "
+ cpu_abort(cs, "Critical interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_MCHECK: /* Machine check exception */
- cpu_abort(env, "Machine check exception while in user mode. "
+ cpu_abort(cs, "Machine check exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_DSI: /* Data storage exception */
@@ -1645,7 +1637,7 @@ void cpu_loop(CPUPPCState *env)
queue_signal(env, info.si_signo, &info);
break;
case POWERPC_EXCP_EXTERNAL: /* External input */
- cpu_abort(env, "External interrupt while in user mode. "
+ cpu_abort(cs, "External interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_ALIGN: /* Alignment exception */
@@ -1739,11 +1731,11 @@ void cpu_loop(CPUPPCState *env)
}
break;
case POWERPC_EXCP_TRAP:
- cpu_abort(env, "Tried to call a TRAP\n");
+ cpu_abort(cs, "Tried to call a TRAP\n");
break;
default:
/* Should not happen ! */
- cpu_abort(env, "Unknown program exception (%02x)\n",
+ cpu_abort(cs, "Unknown program exception (%02x)\n",
env->error_code);
break;
}
@@ -1759,7 +1751,7 @@ void cpu_loop(CPUPPCState *env)
queue_signal(env, info.si_signo, &info);
break;
case POWERPC_EXCP_SYSCALL: /* System call exception */
- cpu_abort(env, "Syscall exception while in user mode. "
+ cpu_abort(cs, "Syscall exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_APU: /* Auxiliary processor unavailable */
@@ -1771,23 +1763,23 @@ void cpu_loop(CPUPPCState *env)
queue_signal(env, info.si_signo, &info);
break;
case POWERPC_EXCP_DECR: /* Decrementer exception */
- cpu_abort(env, "Decrementer interrupt while in user mode. "
+ cpu_abort(cs, "Decrementer interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_FIT: /* Fixed-interval timer interrupt */
- cpu_abort(env, "Fix interval timer interrupt while in user mode. "
+ cpu_abort(cs, "Fix interval timer interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_WDT: /* Watchdog timer interrupt */
- cpu_abort(env, "Watchdog timer interrupt while in user mode. "
+ cpu_abort(cs, "Watchdog timer interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_DTLB: /* Data TLB error */
- cpu_abort(env, "Data TLB exception while in user mode. "
+ cpu_abort(cs, "Data TLB exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_ITLB: /* Instruction TLB error */
- cpu_abort(env, "Instruction TLB exception while in user mode. "
+ cpu_abort(cs, "Instruction TLB exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_SPEU: /* SPE/embedded floating-point unavail. */
@@ -1799,37 +1791,37 @@ void cpu_loop(CPUPPCState *env)
queue_signal(env, info.si_signo, &info);
break;
case POWERPC_EXCP_EFPDI: /* Embedded floating-point data IRQ */
- cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
+ cpu_abort(cs, "Embedded floating-point data IRQ not handled\n");
break;
case POWERPC_EXCP_EFPRI: /* Embedded floating-point round IRQ */
- cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
+ cpu_abort(cs, "Embedded floating-point round IRQ not handled\n");
break;
case POWERPC_EXCP_EPERFM: /* Embedded performance monitor IRQ */
- cpu_abort(env, "Performance monitor exception not handled\n");
+ cpu_abort(cs, "Performance monitor exception not handled\n");
break;
case POWERPC_EXCP_DOORI: /* Embedded doorbell interrupt */
- cpu_abort(env, "Doorbell interrupt while in user mode. "
+ cpu_abort(cs, "Doorbell interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_DOORCI: /* Embedded doorbell critical interrupt */
- cpu_abort(env, "Doorbell critical interrupt while in user mode. "
+ cpu_abort(cs, "Doorbell critical interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_RESET: /* System reset exception */
- cpu_abort(env, "Reset interrupt while in user mode. "
+ cpu_abort(cs, "Reset interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_DSEG: /* Data segment exception */
- cpu_abort(env, "Data segment exception while in user mode. "
+ cpu_abort(cs, "Data segment exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_ISEG: /* Instruction segment exception */
- cpu_abort(env, "Instruction segment exception "
+ cpu_abort(cs, "Instruction segment exception "
"while in user mode. Aborting\n");
break;
/* PowerPC 64 with hypervisor mode support */
case POWERPC_EXCP_HDECR: /* Hypervisor decrementer exception */
- cpu_abort(env, "Hypervisor decrementer interrupt "
+ cpu_abort(cs, "Hypervisor decrementer interrupt "
"while in user mode. Aborting\n");
break;
case POWERPC_EXCP_TRACE: /* Trace exception */
@@ -1839,19 +1831,19 @@ void cpu_loop(CPUPPCState *env)
break;
/* PowerPC 64 with hypervisor mode support */
case POWERPC_EXCP_HDSI: /* Hypervisor data storage exception */
- cpu_abort(env, "Hypervisor data storage exception "
+ cpu_abort(cs, "Hypervisor data storage exception "
"while in user mode. Aborting\n");
break;
case POWERPC_EXCP_HISI: /* Hypervisor instruction storage excp */
- cpu_abort(env, "Hypervisor instruction storage exception "
+ cpu_abort(cs, "Hypervisor instruction storage exception "
"while in user mode. Aborting\n");
break;
case POWERPC_EXCP_HDSEG: /* Hypervisor data segment exception */
- cpu_abort(env, "Hypervisor data segment exception "
+ cpu_abort(cs, "Hypervisor data segment exception "
"while in user mode. Aborting\n");
break;
case POWERPC_EXCP_HISEG: /* Hypervisor instruction segment excp */
- cpu_abort(env, "Hypervisor instruction segment exception "
+ cpu_abort(cs, "Hypervisor instruction segment exception "
"while in user mode. Aborting\n");
break;
case POWERPC_EXCP_VPU: /* Vector unavailable exception */
@@ -1863,58 +1855,58 @@ void cpu_loop(CPUPPCState *env)
queue_signal(env, info.si_signo, &info);
break;
case POWERPC_EXCP_PIT: /* Programmable interval timer IRQ */
- cpu_abort(env, "Programmable interval timer interrupt "
+ cpu_abort(cs, "Programmable interval timer interrupt "
"while in user mode. Aborting\n");
break;
case POWERPC_EXCP_IO: /* IO error exception */
- cpu_abort(env, "IO error exception while in user mode. "
+ cpu_abort(cs, "IO error exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_RUNM: /* Run mode exception */
- cpu_abort(env, "Run mode exception while in user mode. "
+ cpu_abort(cs, "Run mode exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_EMUL: /* Emulation trap exception */
- cpu_abort(env, "Emulation trap exception not handled\n");
+ cpu_abort(cs, "Emulation trap exception not handled\n");
break;
case POWERPC_EXCP_IFTLB: /* Instruction fetch TLB error */
- cpu_abort(env, "Instruction fetch TLB exception "
+ cpu_abort(cs, "Instruction fetch TLB exception "
"while in user-mode. Aborting");
break;
case POWERPC_EXCP_DLTLB: /* Data load TLB miss */
- cpu_abort(env, "Data load TLB exception while in user-mode. "
+ cpu_abort(cs, "Data load TLB exception while in user-mode. "
"Aborting");
break;
case POWERPC_EXCP_DSTLB: /* Data store TLB miss */
- cpu_abort(env, "Data store TLB exception while in user-mode. "
+ cpu_abort(cs, "Data store TLB exception while in user-mode. "
"Aborting");
break;
case POWERPC_EXCP_FPA: /* Floating-point assist exception */
- cpu_abort(env, "Floating-point assist exception not handled\n");
+ cpu_abort(cs, "Floating-point assist exception not handled\n");
break;
case POWERPC_EXCP_IABR: /* Instruction address breakpoint */
- cpu_abort(env, "Instruction address breakpoint exception "
+ cpu_abort(cs, "Instruction address breakpoint exception "
"not handled\n");
break;
case POWERPC_EXCP_SMI: /* System management interrupt */
- cpu_abort(env, "System management interrupt while in user mode. "
+ cpu_abort(cs, "System management interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_THERM: /* Thermal interrupt */
- cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
+ cpu_abort(cs, "Thermal interrupt interrupt while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_PERFM: /* Embedded performance monitor IRQ */
- cpu_abort(env, "Performance monitor exception not handled\n");
+ cpu_abort(cs, "Performance monitor exception not handled\n");
break;
case POWERPC_EXCP_VPUA: /* Vector assist exception */
- cpu_abort(env, "Vector assist exception not handled\n");
+ cpu_abort(cs, "Vector assist exception not handled\n");
break;
case POWERPC_EXCP_SOFTP: /* Soft patch exception */
- cpu_abort(env, "Soft patch exception not handled\n");
+ cpu_abort(cs, "Soft patch exception not handled\n");
break;
case POWERPC_EXCP_MAINT: /* Maintenance exception */
- cpu_abort(env, "Maintenance exception while in user mode. "
+ cpu_abort(cs, "Maintenance exception while in user mode. "
"Aborting\n");
break;
case POWERPC_EXCP_STOP: /* stop translation */
@@ -1970,7 +1962,7 @@ void cpu_loop(CPUPPCState *env)
/* just indicate that signals should be handled asap */
break;
default:
- cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
+ cpu_abort(cs, "Unknown exception 0x%d. Aborting\n", trapnr);
break;
}
process_pending_signals(env);
@@ -2965,7 +2957,7 @@ void cpu_loop(CPUM68KState *env)
int trapnr;
unsigned int n;
target_siginfo_t info;
- TaskState *ts = env->opaque;
+ TaskState *ts = cs->opaque;
for(;;) {
trapnr = cpu_m68k_exec(env);
@@ -3435,28 +3427,30 @@ void init_task_state(TaskState *ts)
CPUArchState *cpu_copy(CPUArchState *env)
{
+ CPUState *cpu = ENV_GET_CPU(env);
CPUArchState *new_env = cpu_init(cpu_model);
+ CPUState *new_cpu = ENV_GET_CPU(new_env);
#if defined(TARGET_HAS_ICE)
CPUBreakpoint *bp;
CPUWatchpoint *wp;
#endif
/* Reset non arch specific state */
- cpu_reset(ENV_GET_CPU(new_env));
+ cpu_reset(new_cpu);
memcpy(new_env, env, sizeof(CPUArchState));
/* Clone all break/watchpoints.
Note: Once we support ptrace with hw-debug register access, make sure
BP_CPU break/watchpoints are handled correctly on clone. */
- QTAILQ_INIT(&env->breakpoints);
- QTAILQ_INIT(&env->watchpoints);
+ QTAILQ_INIT(&cpu->breakpoints);
+ QTAILQ_INIT(&cpu->watchpoints);
#if defined(TARGET_HAS_ICE)
- QTAILQ_FOREACH(bp, &env->breakpoints, entry) {
- cpu_breakpoint_insert(new_env, bp->pc, bp->flags, NULL);
+ QTAILQ_FOREACH(bp, &cpu->breakpoints, entry) {
+ cpu_breakpoint_insert(new_cpu, bp->pc, bp->flags, NULL);
}
- QTAILQ_FOREACH(wp, &env->watchpoints, entry) {
- cpu_watchpoint_insert(new_env, wp->vaddr, (~wp->len_mask) + 1,
+ QTAILQ_FOREACH(wp, &cpu->watchpoints, entry) {
+ cpu_watchpoint_insert(new_cpu, wp->vaddr, (~wp->len_mask) + 1,
wp->flags, NULL);
}
#endif
@@ -4001,7 +3995,7 @@ int main(int argc, char **argv, char **envp)
/* build Task State */
ts->info = info;
ts->bprm = &bprm;
- env->opaque = ts;
+ cpu->opaque = ts;
task_settid(ts);
execfd = qemu_getauxval(AT_EXECFD);
diff --git a/linux-user/qemu.h b/linux-user/qemu.h
index c2f74f33d6..36d4a738ea 100644
--- a/linux-user/qemu.h
+++ b/linux-user/qemu.h
@@ -126,6 +126,7 @@ typedef struct TaskState {
#endif
uint32_t stack_base;
int used; /* non zero if used */
+ bool sigsegv_blocked; /* SIGSEGV blocked by guest */
struct image_info *info;
struct linux_binprm *bprm;
@@ -235,6 +236,7 @@ int host_to_target_signal(int sig);
long do_sigreturn(CPUArchState *env);
long do_rt_sigreturn(CPUArchState *env);
abi_long do_sigaltstack(abi_ulong uss_addr, abi_ulong uoss_addr, abi_ulong sp);
+int do_sigprocmask(int how, const sigset_t *set, sigset_t *oldset);
#ifdef TARGET_I386
/* vm86.c */
diff --git a/linux-user/signal.c b/linux-user/signal.c
index c8a1da0749..7d6246f448 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -197,6 +197,55 @@ void target_to_host_old_sigset(sigset_t *sigset,
target_to_host_sigset(sigset, &d);
}
+/* Wrapper for sigprocmask function
+ * Emulates a sigprocmask in a safe way for the guest. Note that set and oldset
+ * are host signal set, not guest ones. This wraps the sigprocmask host calls
+ * that should be protected (calls originated from guest)
+ */
+int do_sigprocmask(int how, const sigset_t *set, sigset_t *oldset)
+{
+ int ret;
+ sigset_t val;
+ sigset_t *temp = NULL;
+ CPUState *cpu = thread_cpu;
+ TaskState *ts = (TaskState *)cpu->opaque;
+ bool segv_was_blocked = ts->sigsegv_blocked;
+
+ if (set) {
+ bool has_sigsegv = sigismember(set, SIGSEGV);
+ val = *set;
+ temp = &val;
+
+ sigdelset(temp, SIGSEGV);
+
+ switch (how) {
+ case SIG_BLOCK:
+ if (has_sigsegv) {
+ ts->sigsegv_blocked = true;
+ }
+ break;
+ case SIG_UNBLOCK:
+ if (has_sigsegv) {
+ ts->sigsegv_blocked = false;
+ }
+ break;
+ case SIG_SETMASK:
+ ts->sigsegv_blocked = has_sigsegv;
+ break;
+ default:
+ g_assert_not_reached();
+ }
+ }
+
+ ret = sigprocmask(how, temp, oldset);
+
+ if (oldset && segv_was_blocked) {
+ sigaddset(oldset, SIGSEGV);
+ }
+
+ return ret;
+}
+
/* siginfo conversion */
static inline void host_to_target_siginfo_noswap(target_siginfo_t *tinfo,
@@ -370,7 +419,8 @@ void signal_init(void)
static inline struct sigqueue *alloc_sigqueue(CPUArchState *env)
{
- TaskState *ts = env->opaque;
+ CPUState *cpu = ENV_GET_CPU(env);
+ TaskState *ts = cpu->opaque;
struct sigqueue *q = ts->first_free;
if (!q)
return NULL;
@@ -380,7 +430,9 @@ static inline struct sigqueue *alloc_sigqueue(CPUArchState *env)
static inline void free_sigqueue(CPUArchState *env, struct sigqueue *q)
{
- TaskState *ts = env->opaque;
+ CPUState *cpu = ENV_GET_CPU(env);
+ TaskState *ts = cpu->opaque;
+
q->next = ts->first_free;
ts->first_free = q;
}
@@ -388,8 +440,9 @@ static inline void free_sigqueue(CPUArchState *env, struct sigqueue *q)
/* abort execution with signal */
static void QEMU_NORETURN force_sig(int target_sig)
{
- CPUArchState *env = thread_cpu->env_ptr;
- TaskState *ts = (TaskState *)env->opaque;
+ CPUState *cpu = thread_cpu;
+ CPUArchState *env = cpu->env_ptr;
+ TaskState *ts = (TaskState *)cpu->opaque;
int host_sig, core_dumped = 0;
struct sigaction act;
host_sig = target_to_host_signal(target_sig);
@@ -440,7 +493,8 @@ static void QEMU_NORETURN force_sig(int target_sig)
as possible */
int queue_signal(CPUArchState *env, int sig, target_siginfo_t *info)
{
- TaskState *ts = env->opaque;
+ CPUState *cpu = ENV_GET_CPU(env);
+ TaskState *ts = cpu->opaque;
struct emulated_sigtable *k;
struct sigqueue *q, **pq;
abi_ulong handler;
@@ -453,6 +507,19 @@ int queue_signal(CPUArchState *env, int sig, target_siginfo_t *info)
k = &ts->sigtab[sig - 1];
queue = gdb_queuesig ();
handler = sigact_table[sig - 1]._sa_handler;
+
+ if (ts->sigsegv_blocked && sig == TARGET_SIGSEGV) {
+ /* Guest has blocked SIGSEGV but we got one anyway. Assume this
+ * is a forced SIGSEGV (ie one the kernel handles via force_sig_info
+ * because it got a real MMU fault). A blocked SIGSEGV in that
+ * situation is treated as if using the default handler. This is
+ * not correct if some other process has randomly sent us a SIGSEGV
+ * via kill(), but that is not easy to distinguish at this point,
+ * so we assume it doesn't happen.
+ */
+ handler = TARGET_SIG_DFL;
+ }
+
if (!queue && handler == TARGET_SIG_DFL) {
if (sig == TARGET_SIGTSTP || sig == TARGET_SIGTTIN || sig == TARGET_SIGTTOU) {
kill(getpid(),SIGSTOP);
@@ -774,8 +841,9 @@ static int
setup_sigcontext(struct target_sigcontext *sc, struct target_fpstate *fpstate,
CPUX86State *env, abi_ulong mask, abi_ulong fpstate_addr)
{
- int err = 0;
- uint16_t magic;
+ CPUState *cs = CPU(x86_env_get_cpu(env));
+ int err = 0;
+ uint16_t magic;
/* already locked in setup_frame() */
err |= __put_user(env->segs[R_GS].selector, (unsigned int *)&sc->gs);
@@ -790,7 +858,7 @@ setup_sigcontext(struct target_sigcontext *sc, struct target_fpstate *fpstate,
err |= __put_user(env->regs[R_EDX], &sc->edx);
err |= __put_user(env->regs[R_ECX], &sc->ecx);
err |= __put_user(env->regs[R_EAX], &sc->eax);
- err |= __put_user(env->exception_index, &sc->trapno);
+ err |= __put_user(cs->exception_index, &sc->trapno);
err |= __put_user(env->error_code, &sc->err);
err |= __put_user(env->eip, &sc->eip);
err |= __put_user(env->segs[R_CS].selector, (unsigned int *)&sc->cs);
@@ -1050,7 +1118,7 @@ long do_sigreturn(CPUX86State *env)
}
target_to_host_sigset_internal(&set, &target_set);
- sigprocmask(SIG_SETMASK, &set, NULL);
+ do_sigprocmask(SIG_SETMASK, &set, NULL);
/* restore registers */
if (restore_sigcontext(env, &frame->sc, &eax))
@@ -1075,7 +1143,7 @@ long do_rt_sigreturn(CPUX86State *env)
if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1))
goto badframe;
target_to_host_sigset(&set, &frame->uc.tuc_sigmask);
- sigprocmask(SIG_SETMASK, &set, NULL);
+ do_sigprocmask(SIG_SETMASK, &set, NULL);
if (restore_sigcontext(env, &frame->uc.tuc_mcontext, &eax))
goto badframe;
@@ -1214,7 +1282,7 @@ static int target_restore_sigframe(CPUARMState *env,
uint64_t pstate;
target_to_host_sigset(&set, &sf->uc.tuc_sigmask);
- sigprocmask(SIG_SETMASK, &set, NULL);
+ do_sigprocmask(SIG_SETMASK, &set, NULL);
for (i = 0; i < 31; i++) {
__get_user(env->xregs[i], &sf->uc.tuc_mcontext.regs[i]);
@@ -1334,7 +1402,7 @@ static void setup_frame(int sig, struct target_sigaction *ka,
long do_rt_sigreturn(CPUARMState *env)
{
- struct target_rt_sigframe *frame;
+ struct target_rt_sigframe *frame = NULL;
abi_ulong frame_addr = env->xregs[31];
if (frame_addr & 15) {
@@ -1855,7 +1923,7 @@ static long do_sigreturn_v1(CPUARMState *env)
}
target_to_host_sigset_internal(&host_set, &set);
- sigprocmask(SIG_SETMASK, &host_set, NULL);
+ do_sigprocmask(SIG_SETMASK, &host_set, NULL);
if (restore_sigcontext(env, &frame->sc))
goto badframe;
@@ -1936,7 +2004,7 @@ static int do_sigframe_return_v2(CPUARMState *env, target_ulong frame_addr,
abi_ulong *regspace;
target_to_host_sigset(&host_set, &uc->tuc_sigmask);
- sigprocmask(SIG_SETMASK, &host_set, NULL);
+ do_sigprocmask(SIG_SETMASK, &host_set, NULL);
if (restore_sigcontext(env, &uc->tuc_mcontext))
return 1;
@@ -2027,7 +2095,7 @@ static long do_rt_sigreturn_v1(CPUARMState *env)
goto badframe;
target_to_host_sigset(&host_set, &frame->uc.tuc_sigmask);
- sigprocmask(SIG_SETMASK, &host_set, NULL);
+ do_sigprocmask(SIG_SETMASK, &host_set, NULL);
if (restore_sigcontext(env, &frame->uc.tuc_mcontext))
goto badframe;
@@ -2438,7 +2506,7 @@ long do_sigreturn(CPUSPARCState *env)
}
target_to_host_sigset_internal(&host_set, &set);
- sigprocmask(SIG_SETMASK, &host_set, NULL);
+ do_sigprocmask(SIG_SETMASK, &host_set, NULL);
if (err)
goto segv_and_exit;
@@ -2561,7 +2629,7 @@ void sparc64_set_context(CPUSPARCState *env)
goto do_sigsegv;
}
target_to_host_sigset_internal(&set, &target_set);
- sigprocmask(SIG_SETMASK, &set, NULL);
+ do_sigprocmask(SIG_SETMASK, &set, NULL);
}
env->pc = pc;
env->npc = npc;
@@ -2650,7 +2718,7 @@ void sparc64_get_context(CPUSPARCState *env)
err = 0;
- sigprocmask(0, NULL, &set);
+ do_sigprocmask(0, NULL, &set);
host_to_target_sigset_internal(&target_set, &set);
if (TARGET_NSIG_WORDS == 1) {
err |= __put_user(target_set.sig[0],
@@ -2985,7 +3053,7 @@ long do_sigreturn(CPUMIPSState *regs)
}
target_to_host_sigset_internal(&blocked, &target_set);
- sigprocmask(SIG_SETMASK, &blocked, NULL);
+ do_sigprocmask(SIG_SETMASK, &blocked, NULL);
if (restore_sigcontext(regs, &frame->sf_sc))
goto badframe;
@@ -3089,7 +3157,7 @@ long do_rt_sigreturn(CPUMIPSState *env)
goto badframe;
target_to_host_sigset(&blocked, &frame->rs_uc.tuc_sigmask);
- sigprocmask(SIG_SETMASK, &blocked, NULL);
+ do_sigprocmask(SIG_SETMASK, &blocked, NULL);
if (restore_sigcontext(env, &frame->rs_uc.tuc_mcontext))
goto badframe;
@@ -3379,7 +3447,7 @@ long do_sigreturn(CPUSH4State *regs)
goto badframe;
target_to_host_sigset_internal(&blocked, &target_set);
- sigprocmask(SIG_SETMASK, &blocked, NULL);
+ do_sigprocmask(SIG_SETMASK, &blocked, NULL);
if (restore_sigcontext(regs, &frame->sc, &r0))
goto badframe;
@@ -3408,7 +3476,7 @@ long do_rt_sigreturn(CPUSH4State *regs)
goto badframe;
target_to_host_sigset(&blocked, &frame->uc.tuc_sigmask);
- sigprocmask(SIG_SETMASK, &blocked, NULL);
+ do_sigprocmask(SIG_SETMASK, &blocked, NULL);
if (restore_sigcontext(regs, &frame->uc.tuc_mcontext, &r0))
goto badframe;
@@ -3638,7 +3706,7 @@ long do_sigreturn(CPUMBState *env)
goto badframe;
}
target_to_host_sigset_internal(&set, &target_set);
- sigprocmask(SIG_SETMASK, &set, NULL);
+ do_sigprocmask(SIG_SETMASK, &set, NULL);
restore_sigcontext(&frame->uc.tuc_mcontext, env);
/* We got here through a sigreturn syscall, our path back is via an
@@ -3813,7 +3881,7 @@ long do_sigreturn(CPUCRISState *env)
goto badframe;
}
target_to_host_sigset_internal(&set, &target_set);
- sigprocmask(SIG_SETMASK, &set, NULL);
+ do_sigprocmask(SIG_SETMASK, &set, NULL);
restore_sigcontext(&frame->sc, env);
unlock_user_struct(frame, frame_addr, 0);
@@ -3975,8 +4043,6 @@ static void setup_rt_frame(int sig, struct target_sigaction *ka,
struct target_rt_sigframe *frame;
abi_ulong info_addr, uc_addr;
- frame_addr = get_sigframe(ka, env, sizeof *frame);
-
frame_addr = get_sigframe(ka, env, sizeof(*frame));
if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) {
goto give_sigsegv;
@@ -4344,7 +4410,7 @@ long do_sigreturn(CPUS390XState *env)
}
target_to_host_sigset_internal(&set, &target_set);
- sigprocmask(SIG_SETMASK, &set, NULL); /* ~_BLOCKABLE? */
+ do_sigprocmask(SIG_SETMASK, &set, NULL); /* ~_BLOCKABLE? */
if (restore_sigregs(env, &frame->sregs)) {
goto badframe;
@@ -4372,7 +4438,7 @@ long do_rt_sigreturn(CPUS390XState *env)
}
target_to_host_sigset(&set, &frame->uc.tuc_sigmask);
- sigprocmask(SIG_SETMASK, &set, NULL); /* ~_BLOCKABLE? */
+ do_sigprocmask(SIG_SETMASK, &set, NULL); /* ~_BLOCKABLE? */
if (restore_sigregs(env, &frame->uc.tuc_mcontext)) {
goto badframe;
@@ -4900,7 +4966,7 @@ long do_sigreturn(CPUPPCState *env)
goto sigsegv;
#endif
target_to_host_sigset_internal(&blocked, &set);
- sigprocmask(SIG_SETMASK, &blocked, NULL);
+ do_sigprocmask(SIG_SETMASK, &blocked, NULL);
if (__get_user(sr_addr, &sc->regs))
goto sigsegv;
@@ -4944,7 +5010,7 @@ static int do_setcontext(struct target_ucontext *ucp, CPUPPCState *env, int sig)
return 1;
target_to_host_sigset_internal(&blocked, &set);
- sigprocmask(SIG_SETMASK, &blocked, NULL);
+ do_sigprocmask(SIG_SETMASK, &blocked, NULL);
if (restore_user_regs(env, mcp, sig))
goto sigsegv;
@@ -5318,7 +5384,7 @@ long do_sigreturn(CPUM68KState *env)
}
target_to_host_sigset_internal(&set, &target_set);
- sigprocmask(SIG_SETMASK, &set, NULL);
+ do_sigprocmask(SIG_SETMASK, &set, NULL);
/* restore registers */
@@ -5346,7 +5412,7 @@ long do_rt_sigreturn(CPUM68KState *env)
goto badframe;
target_to_host_sigset_internal(&set, &target_set);
- sigprocmask(SIG_SETMASK, &set, NULL);
+ do_sigprocmask(SIG_SETMASK, &set, NULL);
/* restore registers */
@@ -5593,7 +5659,7 @@ long do_sigreturn(CPUAlphaState *env)
}
target_to_host_sigset_internal(&set, &target_set);
- sigprocmask(SIG_SETMASK, &set, NULL);
+ do_sigprocmask(SIG_SETMASK, &set, NULL);
if (restore_sigcontext(env, sc)) {
goto badframe;
@@ -5616,7 +5682,7 @@ long do_rt_sigreturn(CPUAlphaState *env)
goto badframe;
}
target_to_host_sigset(&set, &frame->uc.tuc_sigmask);
- sigprocmask(SIG_SETMASK, &set, NULL);
+ do_sigprocmask(SIG_SETMASK, &set, NULL);
if (restore_sigcontext(env, &frame->uc.tuc_mcontext)) {
goto badframe;
@@ -5675,7 +5741,7 @@ void process_pending_signals(CPUArchState *cpu_env)
struct emulated_sigtable *k;
struct target_sigaction *sa;
struct sigqueue *q;
- TaskState *ts = cpu_env->opaque;
+ TaskState *ts = cpu->opaque;
if (!ts->signal_pending)
return;
@@ -5710,6 +5776,14 @@ void process_pending_signals(CPUArchState *cpu_env)
handler = sa->_sa_handler;
}
+ if (ts->sigsegv_blocked && sig == TARGET_SIGSEGV) {
+ /* Guest has blocked SIGSEGV but we got one anyway. Assume this
+ * is a forced SIGSEGV (ie one the kernel handles via force_sig_info
+ * because it got a real MMU fault), and treat as if default handler.
+ */
+ handler = TARGET_SIG_DFL;
+ }
+
if (handler == TARGET_SIG_DFL) {
/* default handler : ignore some signal. The other are job control or fatal */
if (sig == TARGET_SIGTSTP || sig == TARGET_SIGTTIN || sig == TARGET_SIGTTOU) {
@@ -5733,7 +5807,7 @@ void process_pending_signals(CPUArchState *cpu_env)
sigaddset(&set, target_to_host_signal(sig));
/* block signals in the handler using Linux */
- sigprocmask(SIG_BLOCK, &set, &old_set);
+ do_sigprocmask(SIG_BLOCK, &set, &old_set);
/* save the previous blocked signal state to restore it at the
end of the signal execution (see do_sigreturn) */
host_to_target_sigset_internal(&target_old_set, &old_set);
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index e2c10cc0bd..9864813b7a 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -43,6 +43,7 @@
#include <sys/resource.h>
#include <sys/mman.h>
#include <sys/swap.h>
+#include <linux/capability.h>
#include <signal.h>
#include <sched.h>
#ifdef __ia64__
@@ -243,6 +244,10 @@ _syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len,
unsigned long *, user_mask_ptr);
_syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd,
void *, arg);
+_syscall2(int, capget, struct __user_cap_header_struct *, header,
+ struct __user_cap_data_struct *, data);
+_syscall2(int, capset, struct __user_cap_header_struct *, header,
+ struct __user_cap_data_struct *, data);
static bitmask_transtbl fcntl_flags_tbl[] = {
{ TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, },
@@ -2057,9 +2062,12 @@ static abi_long do_accept4(int fd, abi_ulong target_addr,
socklen_t addrlen;
void *addr;
abi_long ret;
+ int host_flags;
+
+ host_flags = target_to_host_bitmask(flags, fcntl_flags_tbl);
if (target_addr == 0) {
- return get_errno(accept4(fd, NULL, NULL, flags));
+ return get_errno(accept4(fd, NULL, NULL, host_flags));
}
/* linux returns EINVAL if addrlen pointer is invalid */
@@ -2075,7 +2083,7 @@ static abi_long do_accept4(int fd, abi_ulong target_addr,
addr = alloca(addrlen);
- ret = get_errno(accept4(fd, addr, &addrlen, flags));
+ ret = get_errno(accept4(fd, addr, &addrlen, host_flags));
if (!is_error(ret)) {
host_to_target_sockaddr(target_addr, addr, addrlen);
if (put_user_u32(addrlen, target_addrlen_addr))
@@ -4243,7 +4251,7 @@ static void *clone_func(void *arg)
env = info->env;
cpu = ENV_GET_CPU(env);
thread_cpu = cpu;
- ts = (TaskState *)env->opaque;
+ ts = (TaskState *)cpu->opaque;
info->tid = gettid();
cpu->host_tid = info->tid;
task_settid(ts);
@@ -4271,8 +4279,10 @@ static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
abi_ulong parent_tidptr, target_ulong newtls,
abi_ulong child_tidptr)
{
+ CPUState *cpu = ENV_GET_CPU(env);
int ret;
TaskState *ts;
+ CPUState *new_cpu;
CPUArchState *new_env;
unsigned int nptl_flags;
sigset_t sigmask;
@@ -4282,7 +4292,7 @@ static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
flags &= ~(CLONE_VFORK | CLONE_VM);
if (flags & CLONE_VM) {
- TaskState *parent_ts = (TaskState *)env->opaque;
+ TaskState *parent_ts = (TaskState *)cpu->opaque;
new_thread_info info;
pthread_attr_t attr;
@@ -4292,7 +4302,8 @@ static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
new_env = cpu_copy(env);
/* Init regs that differ from the parent. */
cpu_clone_regs(new_env, newsp);
- new_env->opaque = ts;
+ new_cpu = ENV_GET_CPU(new_env);
+ new_cpu->opaque = ts;
ts->bprm = parent_ts->bprm;
ts->info = parent_ts->info;
nptl_flags = flags;
@@ -4364,7 +4375,7 @@ static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
put_user_u32(gettid(), child_tidptr);
if (flags & CLONE_PARENT_SETTID)
put_user_u32(gettid(), parent_tidptr);
- ts = (TaskState *)env->opaque;
+ ts = (TaskState *)cpu->opaque;
if (flags & CLONE_SETTLS)
cpu_set_tls (env, newtls);
if (flags & CLONE_CHILD_CLEARTID)
@@ -4418,6 +4429,14 @@ static int target_to_host_fcntl_cmd(int cmd)
#endif
case TARGET_F_NOTIFY:
return F_NOTIFY;
+#ifdef F_GETOWN_EX
+ case TARGET_F_GETOWN_EX:
+ return F_GETOWN_EX;
+#endif
+#ifdef F_SETOWN_EX
+ case TARGET_F_SETOWN_EX:
+ return F_SETOWN_EX;
+#endif
default:
return -TARGET_EINVAL;
}
@@ -4440,6 +4459,10 @@ static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
struct target_flock *target_fl;
struct flock64 fl64;
struct target_flock64 *target_fl64;
+#ifdef F_GETOWN_EX
+ struct f_owner_ex fox;
+ struct target_f_owner_ex *target_fox;
+#endif
abi_long ret;
int host_cmd = target_to_host_fcntl_cmd(cmd);
@@ -4533,6 +4556,30 @@ static abi_long do_fcntl(int fd, int cmd, abi_ulong arg)
ret = get_errno(fcntl(fd, host_cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)));
break;
+#ifdef F_GETOWN_EX
+ case TARGET_F_GETOWN_EX:
+ ret = get_errno(fcntl(fd, host_cmd, &fox));
+ if (ret >= 0) {
+ if (!lock_user_struct(VERIFY_WRITE, target_fox, arg, 0))
+ return -TARGET_EFAULT;
+ target_fox->type = tswap32(fox.type);
+ target_fox->pid = tswap32(fox.pid);
+ unlock_user_struct(target_fox, arg, 1);
+ }
+ break;
+#endif
+
+#ifdef F_SETOWN_EX
+ case TARGET_F_SETOWN_EX:
+ if (!lock_user_struct(VERIFY_READ, target_fox, arg, 1))
+ return -TARGET_EFAULT;
+ fox.type = tswap32(target_fox->type);
+ fox.pid = tswap32(target_fox->pid);
+ unlock_user_struct(target_fox, arg, 0);
+ ret = get_errno(fcntl(fd, host_cmd, &fox));
+ break;
+#endif
+
case TARGET_F_SETOWN:
case TARGET_F_GETOWN:
case TARGET_F_SETSIG:
@@ -4974,7 +5021,8 @@ void init_qemu_uname_release(void)
static int open_self_maps(void *cpu_env, int fd)
{
#if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
- TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
+ CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
+ TaskState *ts = cpu->opaque;
#endif
FILE *fp;
char *line = NULL;
@@ -5026,7 +5074,8 @@ static int open_self_maps(void *cpu_env, int fd)
static int open_self_stat(void *cpu_env, int fd)
{
- TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
+ CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
+ TaskState *ts = cpu->opaque;
abi_ulong start_stack = ts->info->start_stack;
int i;
@@ -5062,7 +5111,8 @@ static int open_self_stat(void *cpu_env, int fd)
static int open_self_auxv(void *cpu_env, int fd)
{
- TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
+ CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
+ TaskState *ts = cpu->opaque;
abi_ulong auxv = ts->info->saved_auxv;
abi_ulong len = ts->info->auxv_len;
char *ptr;
@@ -5244,14 +5294,14 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
/* Remove the CPU from the list. */
QTAILQ_REMOVE(&cpus, cpu, node);
cpu_list_unlock();
- ts = ((CPUArchState *)cpu_env)->opaque;
+ ts = cpu->opaque;
if (ts->child_tidptr) {
put_user_u32(0, ts->child_tidptr);
sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,
NULL, NULL, 0);
}
thread_cpu = NULL;
- object_unref(OBJECT(ENV_GET_CPU(cpu_env)));
+ object_unref(OBJECT(cpu));
g_free(ts);
pthread_exit(NULL);
}
@@ -5987,7 +6037,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
{
sigset_t cur_set;
abi_ulong target_set;
- sigprocmask(0, NULL, &cur_set);
+ do_sigprocmask(0, NULL, &cur_set);
host_to_target_old_sigset(&target_set, &cur_set);
ret = target_set;
}
@@ -5998,10 +6048,10 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
{
sigset_t set, oset, cur_set;
abi_ulong target_set = arg1;
- sigprocmask(0, NULL, &cur_set);
+ do_sigprocmask(0, NULL, &cur_set);
target_to_host_old_sigset(&set, &target_set);
sigorset(&set, &set, &cur_set);
- sigprocmask(SIG_SETMASK, &set, &oset);
+ do_sigprocmask(SIG_SETMASK, &set, &oset);
host_to_target_old_sigset(&target_set, &oset);
ret = target_set;
}
@@ -6032,7 +6082,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
mask = arg2;
target_to_host_old_sigset(&set, &mask);
- ret = get_errno(sigprocmask(how, &set, &oldset));
+ ret = get_errno(do_sigprocmask(how, &set, &oldset));
if (!is_error(ret)) {
host_to_target_old_sigset(&mask, &oldset);
ret = mask;
@@ -6066,7 +6116,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
how = 0;
set_ptr = NULL;
}
- ret = get_errno(sigprocmask(how, set_ptr, &oldset));
+ ret = get_errno(do_sigprocmask(how, set_ptr, &oldset));
if (!is_error(ret) && arg3) {
if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
goto efault;
@@ -6106,7 +6156,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
how = 0;
set_ptr = NULL;
}
- ret = get_errno(sigprocmask(how, set_ptr, &oldset));
+ ret = get_errno(do_sigprocmask(how, set_ptr, &oldset));
if (!is_error(ret) && arg3) {
if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0)))
goto efault;
@@ -6555,7 +6605,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
break;
case TARGET_NR_mprotect:
{
- TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
+ TaskState *ts = cpu->opaque;
/* Special hack to detect libc making the stack executable. */
if ((arg3 & PROT_GROWSDOWN)
&& arg1 >= ts->info->stack_limit
@@ -7635,9 +7685,75 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
unlock_user(p, arg1, ret);
break;
case TARGET_NR_capget:
- goto unimplemented;
case TARGET_NR_capset:
- goto unimplemented;
+ {
+ struct target_user_cap_header *target_header;
+ struct target_user_cap_data *target_data = NULL;
+ struct __user_cap_header_struct header;
+ struct __user_cap_data_struct data[2];
+ struct __user_cap_data_struct *dataptr = NULL;
+ int i, target_datalen;
+ int data_items = 1;
+
+ if (!lock_user_struct(VERIFY_WRITE, target_header, arg1, 1)) {
+ goto efault;
+ }
+ header.version = tswap32(target_header->version);
+ header.pid = tswap32(target_header->pid);
+
+ if (header.version != _LINUX_CAPABILITY_VERSION) {
+ /* Version 2 and up takes pointer to two user_data structs */
+ data_items = 2;
+ }
+
+ target_datalen = sizeof(*target_data) * data_items;
+
+ if (arg2) {
+ if (num == TARGET_NR_capget) {
+ target_data = lock_user(VERIFY_WRITE, arg2, target_datalen, 0);
+ } else {
+ target_data = lock_user(VERIFY_READ, arg2, target_datalen, 1);
+ }
+ if (!target_data) {
+ unlock_user_struct(target_header, arg1, 0);
+ goto efault;
+ }
+
+ if (num == TARGET_NR_capset) {
+ for (i = 0; i < data_items; i++) {
+ data[i].effective = tswap32(target_data[i].effective);
+ data[i].permitted = tswap32(target_data[i].permitted);
+ data[i].inheritable = tswap32(target_data[i].inheritable);
+ }
+ }
+
+ dataptr = data;
+ }
+
+ if (num == TARGET_NR_capget) {
+ ret = get_errno(capget(&header, dataptr));
+ } else {
+ ret = get_errno(capset(&header, dataptr));
+ }
+
+ /* The kernel always updates version for both capget and capset */
+ target_header->version = tswap32(header.version);
+ unlock_user_struct(target_header, arg1, 1);
+
+ if (arg2) {
+ if (num == TARGET_NR_capget) {
+ for (i = 0; i < data_items; i++) {
+ target_data[i].effective = tswap32(data[i].effective);
+ target_data[i].permitted = tswap32(data[i].permitted);
+ target_data[i].inheritable = tswap32(data[i].inheritable);
+ }
+ unlock_user(target_data, arg2, target_datalen);
+ } else {
+ unlock_user(target_data, arg2, 0);
+ }
+ }
+ break;
+ }
case TARGET_NR_sigaltstack:
#if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \
defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) || \
@@ -8119,7 +8235,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
}
mask = arg2;
target_to_host_old_sigset(&set, &mask);
- sigprocmask(how, &set, &oldset);
+ do_sigprocmask(how, &set, &oldset);
host_to_target_old_sigset(&mask, &oldset);
ret = mask;
}
@@ -8647,7 +8763,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
break;
#elif defined(TARGET_M68K)
{
- TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
+ TaskState *ts = cpu->opaque;
ts->tp_value = arg1;
ret = 0;
break;
@@ -8663,7 +8779,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
break;
#elif defined(TARGET_M68K)
{
- TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
+ TaskState *ts = cpu->opaque;
ret = ts->tp_value;
break;
}
@@ -9142,6 +9258,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
case TARGET_NR_atomic_barrier:
{
/* Like the kernel implementation and the qemu arm barrier, no-op this? */
+ ret = 0;
break;
}
#endif
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index 732c9e3dbb..fdf9a47595 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -2123,6 +2123,8 @@ struct target_statfs64 {
#define TARGET_F_SETOWN 8 /* for sockets. */
#define TARGET_F_GETOWN 9 /* for sockets. */
#endif
+#define TARGET_F_SETOWN_EX 15
+#define TARGET_F_GETOWN_EX 16
#ifndef TARGET_F_RDLCK
#define TARGET_F_RDLCK 0
@@ -2305,6 +2307,11 @@ struct target_eabi_flock64 {
} QEMU_PACKED;
#endif
+struct target_f_owner_ex {
+ int type; /* Owner type of ID. */
+ int pid; /* ID of owner. */
+};
+
/* soundcard defines */
/* XXX: convert them all to arch indepedent entries */
#define TARGET_SNDCTL_COPR_HALT TARGET_IOWR('C', 7, int);
@@ -2559,3 +2566,14 @@ struct target_sigevent {
} _sigev_thread;
} _sigev_un;
};
+
+struct target_user_cap_header {
+ uint32_t version;
+ int pid;
+};
+
+struct target_user_cap_data {
+ uint32_t effective;
+ uint32_t permitted;
+ uint32_t inheritable;
+};
diff --git a/linux-user/vm86.c b/linux-user/vm86.c
index 2c4ffeb551..45ef559ec6 100644
--- a/linux-user/vm86.c
+++ b/linux-user/vm86.c
@@ -72,7 +72,8 @@ static inline unsigned int vm_getl(uint32_t segptr, unsigned int reg16)
void save_v86_state(CPUX86State *env)
{
- TaskState *ts = env->opaque;
+ CPUState *cs = CPU(x86_env_get_cpu(env));
+ TaskState *ts = cs->opaque;
struct target_vm86plus_struct * target_v86;
if (!lock_user_struct(VERIFY_WRITE, target_v86, ts->target_v86, 0))
@@ -131,7 +132,8 @@ static inline void return_to_32bit(CPUX86State *env, int retval)
static inline int set_IF(CPUX86State *env)
{
- TaskState *ts = env->opaque;
+ CPUState *cs = CPU(x86_env_get_cpu(env));
+ TaskState *ts = cs->opaque;
ts->v86flags |= VIF_MASK;
if (ts->v86flags & VIP_MASK) {
@@ -143,7 +145,8 @@ static inline int set_IF(CPUX86State *env)
static inline void clear_IF(CPUX86State *env)
{
- TaskState *ts = env->opaque;
+ CPUState *cs = CPU(x86_env_get_cpu(env));
+ TaskState *ts = cs->opaque;
ts->v86flags &= ~VIF_MASK;
}
@@ -160,7 +163,8 @@ static inline void clear_AC(CPUX86State *env)
static inline int set_vflags_long(unsigned long eflags, CPUX86State *env)
{
- TaskState *ts = env->opaque;
+ CPUState *cs = CPU(x86_env_get_cpu(env));
+ TaskState *ts = cs->opaque;
set_flags(ts->v86flags, eflags, ts->v86mask);
set_flags(env->eflags, eflags, SAFE_MASK);
@@ -173,7 +177,8 @@ static inline int set_vflags_long(unsigned long eflags, CPUX86State *env)
static inline int set_vflags_short(unsigned short flags, CPUX86State *env)
{
- TaskState *ts = env->opaque;
+ CPUState *cs = CPU(x86_env_get_cpu(env));
+ TaskState *ts = cs->opaque;
set_flags(ts->v86flags, flags, ts->v86mask & 0xffff);
set_flags(env->eflags, flags, SAFE_MASK);
@@ -186,7 +191,8 @@ static inline int set_vflags_short(unsigned short flags, CPUX86State *env)
static inline unsigned int get_vflags(CPUX86State *env)
{
- TaskState *ts = env->opaque;
+ CPUState *cs = CPU(x86_env_get_cpu(env));
+ TaskState *ts = cs->opaque;
unsigned int flags;
flags = env->eflags & RETURN_MASK;
@@ -202,7 +208,8 @@ static inline unsigned int get_vflags(CPUX86State *env)
support TSS interrupt revectoring, so this code is always executed) */
static void do_int(CPUX86State *env, int intno)
{
- TaskState *ts = env->opaque;
+ CPUState *cs = CPU(x86_env_get_cpu(env));
+ TaskState *ts = cs->opaque;
uint32_t int_addr, segoffs, ssp;
unsigned int sp;
@@ -260,7 +267,8 @@ void handle_vm86_trap(CPUX86State *env, int trapno)
void handle_vm86_fault(CPUX86State *env)
{
- TaskState *ts = env->opaque;
+ CPUState *cs = CPU(x86_env_get_cpu(env));
+ TaskState *ts = cs->opaque;
uint32_t csp, ssp;
unsigned int ip, sp, newflags, newip, newcs, opcode, intno;
int data32, pref_done;
@@ -384,7 +392,8 @@ void handle_vm86_fault(CPUX86State *env)
int do_vm86(CPUX86State *env, long subfunction, abi_ulong vm86_addr)
{
- TaskState *ts = env->opaque;
+ CPUState *cs = CPU(x86_env_get_cpu(env));
+ TaskState *ts = cs->opaque;
struct target_vm86plus_struct * target_v86;
int ret;
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2025-04-26 03:02:29 +0200