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- gdb signal handling fix 

- add SO_REUSEPORT
 - remove dead-code
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Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-3.1-pull-request' into staging

- gdb signal handling fix
- add SO_REUSEPORT
- remove dead-code

# gpg: Signature made Mon 12 Nov 2018 20:48:23 GMT
# gpg:                using RSA key F30C38BD3F2FBE3C
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>"
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>"
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>"
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/linux-user-for-3.1-pull-request:
  linux-user: Add support for SO_REUSEPORT
  linux-user: Clean up nios2 main loop signal handling
  linux-user: Don't call gdb_handlesig() before queue_signal()
  linux-user: Remove dead error-checking code

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2018-11-13 11:45:16 +00:00
parent a8a1b163b7 113a9dd73f
commit 186ac05f74
22 changed files with 81 additions and 171 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
linux-user/aarch64/cpu_loop.c
View File

@ -73,7 +73,7 @@
void cpu_loop(CPUARMState *env)
{
CPUState *cs = CPU(arm_env_get_cpu(env));
int trapnr, sig;
int trapnr;
abi_long ret;
target_siginfo_t info;
@ -121,13 +121,10 @@ void cpu_loop(CPUARMState *env)
break;
case EXCP_DEBUG:
case EXCP_BKPT:
sig = gdb_handlesig(cs, TARGET_SIGTRAP);
if (sig) {
info.si_signo = sig;
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
}
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 EXCP_SEMIHOST:
env->xregs[0] = do_arm_semihosting(env);

12
linux-user/alpha/cpu_loop.c
View File

@ -179,14 +179,10 @@ void cpu_loop(CPUAlphaState *env)
}
break;
case EXCP_DEBUG:
info.si_signo = gdb_handlesig(cs, TARGET_SIGTRAP);
if (info.si_signo) {
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
} else {
arch_interrupt = false;
}
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 EXCP_INTERRUPT:
/* Just indicate that signals should be handled asap. */

16
linux-user/arm/cpu_loop.c
View File

@ -397,18 +397,10 @@ void cpu_loop(CPUARMState *env)
break;
case EXCP_DEBUG:
excp_debug:
{
int sig;
sig = gdb_handlesig(cs, TARGET_SIGTRAP);
if (sig)
{
info.si_signo = sig;
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
}
}
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 EXCP_KERNEL_TRAP:
if (do_kernel_trap(env))

16
linux-user/cris/cpu_loop.c
View File

@ -64,18 +64,10 @@ void cpu_loop(CPUCRISState *env)
}
break;
case EXCP_DEBUG:
{
int sig;
sig = gdb_handlesig(cs, TARGET_SIGTRAP);
if (sig)
{
info.si_signo = sig;
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
}
}
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 EXCP_ATOMIC:
cpu_exec_step_atomic(cs);

11
linux-user/hppa/cpu_loop.c
View File

@ -182,13 +182,10 @@ void cpu_loop(CPUHPPAState *env)
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
break;
case EXCP_DEBUG:
trapnr = gdb_handlesig(cs, TARGET_SIGTRAP);
if (trapnr) {
info.si_signo = trapnr;
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(env, trapnr, QEMU_SI_FAULT, &info);
}
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 EXCP_INTERRUPT:
/* just indicate that signals should be handled asap */

16
linux-user/i386/cpu_loop.c
View File

@ -225,18 +225,10 @@ void cpu_loop(CPUX86State *env)
/* just indicate that signals should be handled asap */
break;
case EXCP_DEBUG:
{
int sig;
sig = gdb_handlesig(cs, TARGET_SIGTRAP);
if (sig)
{
info.si_signo = sig;
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
}
}
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 EXCP_ATOMIC:
cpu_exec_step_atomic(cs);

16
linux-user/m68k/cpu_loop.c
View File

@ -112,18 +112,10 @@ void cpu_loop(CPUM68KState *env)
}
break;
case EXCP_DEBUG:
{
int sig;
sig = gdb_handlesig(cs, TARGET_SIGTRAP);
if (sig)
{
info.si_signo = sig;
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
}
}
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 EXCP_ATOMIC:
cpu_exec_step_atomic(cs);

3
linux-user/m68k/signal.c
View File

@ -334,9 +334,6 @@ void setup_rt_frame(int sig, struct target_sigaction *ka,
(uint32_t *)(frame->retcode + 0));
__put_user(0x4e40, (uint16_t *)(frame->retcode + 4));
if (err)
goto give_sigsegv;
/* Set up to return from userspace */
env->aregs[7] = frame_addr;

16
linux-user/microblaze/cpu_loop.c
View File

@ -113,18 +113,10 @@ void cpu_loop(CPUMBState *env)
}
break;
case EXCP_DEBUG:
{
int sig;
sig = gdb_handlesig(cs, TARGET_SIGTRAP);
if (sig)
{
info.si_signo = sig;
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
}
}
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 EXCP_ATOMIC:
cpu_exec_step_atomic(cs);

16
linux-user/mips/cpu_loop.c
View File

@ -592,18 +592,10 @@ done_syscall:
/* just indicate that signals should be handled asap */
break;
case EXCP_DEBUG:
{
int sig;
sig = gdb_handlesig(cs, TARGET_SIGTRAP);
if (sig)
{
info.si_signo = sig;
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
}
}
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 EXCP_SC:
if (do_store_exclusive(env)) {

17
linux-user/nios2/cpu_loop.c
View File

@ -26,13 +26,12 @@ void cpu_loop(CPUNios2State *env)
CPUState *cs = ENV_GET_CPU(env);
Nios2CPU *cpu = NIOS2_CPU(cs);
target_siginfo_t info;
int trapnr, gdbsig, ret;
int trapnr, ret;
for (;;) {
cpu_exec_start(cs);
trapnr = cpu_exec(cs);
cpu_exec_end(cs);
gdbsig = 0;
switch (trapnr) {
case EXCP_INTERRUPT:
@ -68,7 +67,10 @@ void cpu_loop(CPUNios2State *env)
env->regs[R_EA] = env->regs[R_PC] + 4;
env->regs[R_PC] = cpu->exception_addr;
gdbsig = TARGET_SIGTRAP;
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:
@ -106,14 +108,7 @@ kuser_fail:
default:
EXCP_DUMP(env, "\nqemu: unhandled CPU exception %#x - aborting\n",
trapnr);
gdbsig = TARGET_SIGILL;
break;
}
if (gdbsig) {
gdb_handlesig(cs, gdbsig);
if (gdbsig != TARGET_SIGTRAP) {
exit(EXIT_FAILURE);
}
abort();
}
process_pending_signals(env);

11
linux-user/openrisc/cpu_loop.c
View File

@ -85,13 +85,10 @@ void cpu_loop(CPUOpenRISCState *env)
/* We processed the pending cpu work above. */
break;
case EXCP_DEBUG:
trapnr = gdb_handlesig(cs, TARGET_SIGTRAP);
if (trapnr) {
info.si_signo = trapnr;
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
}
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 EXCP_ATOMIC:
cpu_exec_step_atomic(cs);

15
linux-user/ppc/cpu_loop.c
View File

@ -69,7 +69,7 @@ void cpu_loop(CPUPPCState *env)
{
CPUState *cs = CPU(ppc_env_get_cpu(env));
target_siginfo_t info;
int trapnr, sig;
int trapnr;
target_ulong ret;
for(;;) {
@ -449,15 +449,10 @@ void cpu_loop(CPUPPCState *env)
env->gpr[3] = ret;
break;
case EXCP_DEBUG:
sig = gdb_handlesig(cs, TARGET_SIGTRAP);
if (sig) {
info.si_signo = sig;
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
} else {
arch_interrupt = false;
}
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 EXCP_INTERRUPT:
/* just indicate that signals should be handled asap */

2
linux-user/riscv/cpu_loop.c
View File

@ -88,7 +88,7 @@ void cpu_loop(CPURISCVState *env)
break;
case EXCP_DEBUG:
gdbstep:
signum = gdb_handlesig(cs, TARGET_SIGTRAP);
signum = TARGET_SIGTRAP;
sigcode = TARGET_TRAP_BRKPT;
break;
default:

9
linux-user/s390x/cpu_loop.c
View File

@ -61,12 +61,9 @@ void cpu_loop(CPUS390XState *env)
break;
case EXCP_DEBUG:
sig = gdb_handlesig(cs, TARGET_SIGTRAP);
if (sig) {
n = TARGET_TRAP_BRKPT;
goto do_signal_pc;
}
break;
sig = TARGET_SIGTRAP;
n = TARGET_TRAP_BRKPT;
goto do_signal_pc;
case EXCP_PGM:
n = env->int_pgm_code;
switch (n) {

17
linux-user/sh4/cpu_loop.c
View File

@ -57,19 +57,10 @@ void cpu_loop(CPUSH4State *env)
/* just indicate that signals should be handled asap */
break;
case EXCP_DEBUG:
{
int sig;
sig = gdb_handlesig(cs, TARGET_SIGTRAP);
if (sig) {
info.si_signo = sig;
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
} else {
arch_interrupt = false;
}
}
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 0xa0:
case 0xc0:

4
linux-user/sh4/signal.c
View File

@ -279,7 +279,6 @@ long do_sigreturn(CPUSH4State *regs)
sigset_t blocked;
target_sigset_t target_set;
int i;
int err = 0;
frame_addr = regs->gregs[15];
trace_user_do_sigreturn(regs, frame_addr);
@ -292,9 +291,6 @@ long do_sigreturn(CPUSH4State *regs)
__get_user(target_set.sig[i], &frame->extramask[i - 1]);
}
if (err)
goto badframe;
target_to_host_sigset_internal(&blocked, &target_set);
set_sigmask(&blocked);

16
linux-user/sparc/cpu_loop.c
View File

@ -268,18 +268,10 @@ void cpu_loop (CPUSPARCState *env)
}
break;
case EXCP_DEBUG:
{
int sig;
sig = gdb_handlesig(cs, TARGET_SIGTRAP);
if (sig)
{
info.si_signo = sig;
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(env, info.si_signo, QEMU_SI_FAULT, &info);
}
}
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 EXCP_ATOMIC:
cpu_exec_step_atomic(cs);

2
linux-user/sparc/signal.c
View File

@ -256,8 +256,6 @@ void setup_frame(int sig, struct target_sigaction *ka,
/* t 0x10 */
val32 = 0x91d02010;
__put_user(val32, &sf->insns[1]);
if (err)
goto sigsegv;
}
unlock_user(sf, sf_addr, sizeof(struct target_signal_frame));
return;

3
linux-user/strace.c
View File

@ -1742,6 +1742,9 @@ print_optint:
case TARGET_SO_REUSEADDR:
gemu_log("SO_REUSEADDR,");
goto print_optint;
case TARGET_SO_REUSEPORT:
gemu_log("SO_REUSEPORT,");
goto print_optint;
case TARGET_SO_TYPE:
gemu_log("SO_TYPE,");
goto print_optint;

10
linux-user/syscall.c
View File

@ -2061,6 +2061,11 @@ set_timeout:
case TARGET_SO_REUSEADDR:
optname = SO_REUSEADDR;
break;
#ifdef SO_REUSEPORT
case TARGET_SO_REUSEPORT:
optname = SO_REUSEPORT;
break;
#endif
case TARGET_SO_TYPE:
optname = SO_TYPE;
break;
@ -2222,6 +2227,11 @@ static abi_long do_getsockopt(int sockfd, int level, int optname,
case TARGET_SO_REUSEADDR:
optname = SO_REUSEADDR;
goto int_case;
#ifdef SO_REUSEPORT
case TARGET_SO_REUSEPORT:
optname = SO_REUSEPORT;
goto int_case;
#endif
case TARGET_SO_TYPE:
optname = SO_TYPE;
goto int_case;

11
linux-user/xtensa/cpu_loop.c
View File

@ -239,13 +239,10 @@ void cpu_loop(CPUXtensaState *env)
}
break;
case EXCP_DEBUG:
trapnr = gdb_handlesig(cs, TARGET_SIGTRAP);
if (trapnr) {
info.si_signo = trapnr;
info.si_errno = 0;
info.si_code = TARGET_TRAP_BRKPT;
queue_signal(env, trapnr, QEMU_SI_FAULT, &info);
}
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 EXC_DEBUG:
default: