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-rw-r--r--linux-user/s390x/signal.c309
-rw-r--r--linux-user/s390x/target_signal.h6
-rw-r--r--linux-user/signal.c306
3 files changed, 314 insertions, 307 deletions
diff --git a/linux-user/s390x/signal.c b/linux-user/s390x/signal.c
index 02ca338b6c..a204a85e4a 100644
--- a/linux-user/s390x/signal.c
+++ b/linux-user/s390x/signal.c
@@ -16,3 +16,312 @@
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
+#include "qemu/osdep.h"
+#include "qemu.h"
+#include "target_signal.h"
+#include "signal-common.h"
+#include "linux-user/trace.h"
+
+#define __NUM_GPRS 16
+#define __NUM_FPRS 16
+#define __NUM_ACRS 16
+
+#define S390_SYSCALL_SIZE 2
+#define __SIGNAL_FRAMESIZE 160 /* FIXME: 31-bit mode -> 96 */
+
+#define _SIGCONTEXT_NSIG 64
+#define _SIGCONTEXT_NSIG_BPW 64 /* FIXME: 31-bit mode -> 32 */
+#define _SIGCONTEXT_NSIG_WORDS (_SIGCONTEXT_NSIG / _SIGCONTEXT_NSIG_BPW)
+#define _SIGMASK_COPY_SIZE (sizeof(unsigned long)*_SIGCONTEXT_NSIG_WORDS)
+#define PSW_ADDR_AMODE 0x0000000000000000UL /* 0x80000000UL for 31-bit */
+#define S390_SYSCALL_OPCODE ((uint16_t)0x0a00)
+
+typedef struct {
+ target_psw_t psw;
+ target_ulong gprs[__NUM_GPRS];
+ unsigned int acrs[__NUM_ACRS];
+} target_s390_regs_common;
+
+typedef struct {
+ unsigned int fpc;
+ double fprs[__NUM_FPRS];
+} target_s390_fp_regs;
+
+typedef struct {
+ target_s390_regs_common regs;
+ target_s390_fp_regs fpregs;
+} target_sigregs;
+
+struct target_sigcontext {
+ target_ulong oldmask[_SIGCONTEXT_NSIG_WORDS];
+ target_sigregs *sregs;
+};
+
+typedef struct {
+ uint8_t callee_used_stack[__SIGNAL_FRAMESIZE];
+ struct target_sigcontext sc;
+ target_sigregs sregs;
+ int signo;
+ uint8_t retcode[S390_SYSCALL_SIZE];
+} sigframe;
+
+struct target_ucontext {
+ target_ulong tuc_flags;
+ struct target_ucontext *tuc_link;
+ target_stack_t tuc_stack;
+ target_sigregs tuc_mcontext;
+ target_sigset_t tuc_sigmask; /* mask last for extensibility */
+};
+
+typedef struct {
+ uint8_t callee_used_stack[__SIGNAL_FRAMESIZE];
+ uint8_t retcode[S390_SYSCALL_SIZE];
+ struct target_siginfo info;
+ struct target_ucontext uc;
+} rt_sigframe;
+
+static inline abi_ulong
+get_sigframe(struct target_sigaction *ka, CPUS390XState *env, size_t frame_size)
+{
+ abi_ulong sp;
+
+ /* Default to using normal stack */
+ sp = env->regs[15];
+
+ /* This is the X/Open sanctioned signal stack switching. */
+ if (ka->sa_flags & TARGET_SA_ONSTACK) {
+ if (!sas_ss_flags(sp)) {
+ sp = target_sigaltstack_used.ss_sp +
+ target_sigaltstack_used.ss_size;
+ }
+ }
+
+ /* This is the legacy signal stack switching. */
+ else if (/* FIXME !user_mode(regs) */ 0 &&
+ !(ka->sa_flags & TARGET_SA_RESTORER) &&
+ ka->sa_restorer) {
+ sp = (abi_ulong) ka->sa_restorer;
+ }
+
+ return (sp - frame_size) & -8ul;
+}
+
+static void save_sigregs(CPUS390XState *env, target_sigregs *sregs)
+{
+ int i;
+ //save_access_regs(current->thread.acrs); FIXME
+
+ /* Copy a 'clean' PSW mask to the user to avoid leaking
+ information about whether PER is currently on. */
+ __put_user(env->psw.mask, &sregs->regs.psw.mask);
+ __put_user(env->psw.addr, &sregs->regs.psw.addr);
+ for (i = 0; i < 16; i++) {
+ __put_user(env->regs[i], &sregs->regs.gprs[i]);
+ }
+ for (i = 0; i < 16; i++) {
+ __put_user(env->aregs[i], &sregs->regs.acrs[i]);
+ }
+ /*
+ * We have to store the fp registers to current->thread.fp_regs
+ * to merge them with the emulated registers.
+ */
+ //save_fp_regs(&current->thread.fp_regs); FIXME
+ for (i = 0; i < 16; i++) {
+ __put_user(get_freg(env, i)->ll, &sregs->fpregs.fprs[i]);
+ }
+}
+
+void setup_frame(int sig, struct target_sigaction *ka,
+ target_sigset_t *set, CPUS390XState *env)
+{
+ sigframe *frame;
+ abi_ulong frame_addr;
+
+ frame_addr = get_sigframe(ka, env, sizeof(*frame));
+ trace_user_setup_frame(env, frame_addr);
+ if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) {
+ goto give_sigsegv;
+ }
+
+ __put_user(set->sig[0], &frame->sc.oldmask[0]);
+
+ save_sigregs(env, &frame->sregs);
+
+ __put_user((abi_ulong)(unsigned long)&frame->sregs,
+ (abi_ulong *)&frame->sc.sregs);
+
+ /* Set up to return from userspace. If provided, use a stub
+ already in userspace. */
+ if (ka->sa_flags & TARGET_SA_RESTORER) {
+ env->regs[14] = (unsigned long)
+ ka->sa_restorer | PSW_ADDR_AMODE;
+ } else {
+ env->regs[14] = (frame_addr + offsetof(sigframe, retcode))
+ | PSW_ADDR_AMODE;
+ __put_user(S390_SYSCALL_OPCODE | TARGET_NR_sigreturn,
+ (uint16_t *)(frame->retcode));
+ }
+
+ /* Set up backchain. */
+ __put_user(env->regs[15], (abi_ulong *) frame);
+
+ /* Set up registers for signal handler */
+ env->regs[15] = frame_addr;
+ env->psw.addr = (target_ulong) ka->_sa_handler | PSW_ADDR_AMODE;
+
+ env->regs[2] = sig; //map_signal(sig);
+ env->regs[3] = frame_addr += offsetof(typeof(*frame), sc);
+
+ /* We forgot to include these in the sigcontext.
+ To avoid breaking binary compatibility, they are passed as args. */
+ env->regs[4] = 0; // FIXME: no clue... current->thread.trap_no;
+ env->regs[5] = 0; // FIXME: no clue... current->thread.prot_addr;
+
+ /* Place signal number on stack to allow backtrace from handler. */
+ __put_user(env->regs[2], &frame->signo);
+ unlock_user_struct(frame, frame_addr, 1);
+ return;
+
+give_sigsegv:
+ force_sigsegv(sig);
+}
+
+void setup_rt_frame(int sig, struct target_sigaction *ka,
+ target_siginfo_t *info,
+ target_sigset_t *set, CPUS390XState *env)
+{
+ int i;
+ rt_sigframe *frame;
+ abi_ulong frame_addr;
+
+ frame_addr = get_sigframe(ka, env, sizeof *frame);
+ trace_user_setup_rt_frame(env, frame_addr);
+ if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) {
+ goto give_sigsegv;
+ }
+
+ tswap_siginfo(&frame->info, info);
+
+ /* Create the ucontext. */
+ __put_user(0, &frame->uc.tuc_flags);
+ __put_user((abi_ulong)0, (abi_ulong *)&frame->uc.tuc_link);
+ __put_user(target_sigaltstack_used.ss_sp, &frame->uc.tuc_stack.ss_sp);
+ __put_user(sas_ss_flags(get_sp_from_cpustate(env)),
+ &frame->uc.tuc_stack.ss_flags);
+ __put_user(target_sigaltstack_used.ss_size, &frame->uc.tuc_stack.ss_size);
+ save_sigregs(env, &frame->uc.tuc_mcontext);
+ for (i = 0; i < TARGET_NSIG_WORDS; i++) {
+ __put_user((abi_ulong)set->sig[i],
+ (abi_ulong *)&frame->uc.tuc_sigmask.sig[i]);
+ }
+
+ /* Set up to return from userspace. If provided, use a stub
+ already in userspace. */
+ if (ka->sa_flags & TARGET_SA_RESTORER) {
+ env->regs[14] = (unsigned long) ka->sa_restorer | PSW_ADDR_AMODE;
+ } else {
+ env->regs[14] = (unsigned long) frame->retcode | PSW_ADDR_AMODE;
+ __put_user(S390_SYSCALL_OPCODE | TARGET_NR_rt_sigreturn,
+ (uint16_t *)(frame->retcode));
+ }
+
+ /* Set up backchain. */
+ __put_user(env->regs[15], (abi_ulong *) frame);
+
+ /* Set up registers for signal handler */
+ env->regs[15] = frame_addr;
+ env->psw.addr = (target_ulong) ka->_sa_handler | PSW_ADDR_AMODE;
+
+ env->regs[2] = sig; //map_signal(sig);
+ env->regs[3] = frame_addr + offsetof(typeof(*frame), info);
+ env->regs[4] = frame_addr + offsetof(typeof(*frame), uc);
+ return;
+
+give_sigsegv:
+ force_sigsegv(sig);
+}
+
+static int
+restore_sigregs(CPUS390XState *env, target_sigregs *sc)
+{
+ int err = 0;
+ int i;
+
+ for (i = 0; i < 16; i++) {
+ __get_user(env->regs[i], &sc->regs.gprs[i]);
+ }
+
+ __get_user(env->psw.mask, &sc->regs.psw.mask);
+ trace_user_s390x_restore_sigregs(env, (unsigned long long)sc->regs.psw.addr,
+ (unsigned long long)env->psw.addr);
+ __get_user(env->psw.addr, &sc->regs.psw.addr);
+ /* FIXME: 31-bit -> | PSW_ADDR_AMODE */
+
+ for (i = 0; i < 16; i++) {
+ __get_user(env->aregs[i], &sc->regs.acrs[i]);
+ }
+ for (i = 0; i < 16; i++) {
+ __get_user(get_freg(env, i)->ll, &sc->fpregs.fprs[i]);
+ }
+
+ return err;
+}
+
+long do_sigreturn(CPUS390XState *env)
+{
+ sigframe *frame;
+ abi_ulong frame_addr = env->regs[15];
+ target_sigset_t target_set;
+ sigset_t set;
+
+ trace_user_do_sigreturn(env, frame_addr);
+ if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) {
+ goto badframe;
+ }
+ __get_user(target_set.sig[0], &frame->sc.oldmask[0]);
+
+ target_to_host_sigset_internal(&set, &target_set);
+ set_sigmask(&set); /* ~_BLOCKABLE? */
+
+ if (restore_sigregs(env, &frame->sregs)) {
+ goto badframe;
+ }
+
+ unlock_user_struct(frame, frame_addr, 0);
+ return -TARGET_QEMU_ESIGRETURN;
+
+badframe:
+ force_sig(TARGET_SIGSEGV);
+ return -TARGET_QEMU_ESIGRETURN;
+}
+
+long do_rt_sigreturn(CPUS390XState *env)
+{
+ rt_sigframe *frame;
+ abi_ulong frame_addr = env->regs[15];
+ sigset_t set;
+
+ trace_user_do_rt_sigreturn(env, frame_addr);
+ if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) {
+ goto badframe;
+ }
+ target_to_host_sigset(&set, &frame->uc.tuc_sigmask);
+
+ set_sigmask(&set); /* ~_BLOCKABLE? */
+
+ if (restore_sigregs(env, &frame->uc.tuc_mcontext)) {
+ goto badframe;
+ }
+
+ if (do_sigaltstack(frame_addr + offsetof(rt_sigframe, uc.tuc_stack), 0,
+ get_sp_from_cpustate(env)) == -EFAULT) {
+ goto badframe;
+ }
+ unlock_user_struct(frame, frame_addr, 0);
+ return -TARGET_QEMU_ESIGRETURN;
+
+badframe:
+ unlock_user_struct(frame, frame_addr, 0);
+ force_sig(TARGET_SIGSEGV);
+ return -TARGET_QEMU_ESIGRETURN;
+}
diff --git a/linux-user/s390x/target_signal.h b/linux-user/s390x/target_signal.h
index 6f7b6abafe..9e3733bb38 100644
--- a/linux-user/s390x/target_signal.h
+++ b/linux-user/s390x/target_signal.h
@@ -23,5 +23,9 @@ static inline abi_ulong get_sp_from_cpustate(CPUS390XState *state)
return state->regs[15];
}
-
+void setup_frame(int sig, struct target_sigaction *ka,
+ target_sigset_t *set, CPUS390XState *env);
+void setup_rt_frame(int sig, struct target_sigaction *ka,
+ target_siginfo_t *info,
+ target_sigset_t *set, CPUS390XState *env);
#endif /* S390X_TARGET_SIGNAL_H */
diff --git a/linux-user/signal.c b/linux-user/signal.c
index dd85209ef9..32a9405e84 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -2364,312 +2364,6 @@ badframe:
return -TARGET_QEMU_ESIGRETURN;
}
-#elif defined(TARGET_S390X)
-
-#define __NUM_GPRS 16
-#define __NUM_FPRS 16
-#define __NUM_ACRS 16
-
-#define S390_SYSCALL_SIZE 2
-#define __SIGNAL_FRAMESIZE 160 /* FIXME: 31-bit mode -> 96 */
-
-#define _SIGCONTEXT_NSIG 64
-#define _SIGCONTEXT_NSIG_BPW 64 /* FIXME: 31-bit mode -> 32 */
-#define _SIGCONTEXT_NSIG_WORDS (_SIGCONTEXT_NSIG / _SIGCONTEXT_NSIG_BPW)
-#define _SIGMASK_COPY_SIZE (sizeof(unsigned long)*_SIGCONTEXT_NSIG_WORDS)
-#define PSW_ADDR_AMODE 0x0000000000000000UL /* 0x80000000UL for 31-bit */
-#define S390_SYSCALL_OPCODE ((uint16_t)0x0a00)
-
-typedef struct {
- target_psw_t psw;
- target_ulong gprs[__NUM_GPRS];
- unsigned int acrs[__NUM_ACRS];
-} target_s390_regs_common;
-
-typedef struct {
- unsigned int fpc;
- double fprs[__NUM_FPRS];
-} target_s390_fp_regs;
-
-typedef struct {
- target_s390_regs_common regs;
- target_s390_fp_regs fpregs;
-} target_sigregs;
-
-struct target_sigcontext {
- target_ulong oldmask[_SIGCONTEXT_NSIG_WORDS];
- target_sigregs *sregs;
-};
-
-typedef struct {
- uint8_t callee_used_stack[__SIGNAL_FRAMESIZE];
- struct target_sigcontext sc;
- target_sigregs sregs;
- int signo;
- uint8_t retcode[S390_SYSCALL_SIZE];
-} sigframe;
-
-struct target_ucontext {
- target_ulong tuc_flags;
- struct target_ucontext *tuc_link;
- target_stack_t tuc_stack;
- target_sigregs tuc_mcontext;
- target_sigset_t tuc_sigmask; /* mask last for extensibility */
-};
-
-typedef struct {
- uint8_t callee_used_stack[__SIGNAL_FRAMESIZE];
- uint8_t retcode[S390_SYSCALL_SIZE];
- struct target_siginfo info;
- struct target_ucontext uc;
-} rt_sigframe;
-
-static inline abi_ulong
-get_sigframe(struct target_sigaction *ka, CPUS390XState *env, size_t frame_size)
-{
- abi_ulong sp;
-
- /* Default to using normal stack */
- sp = env->regs[15];
-
- /* This is the X/Open sanctioned signal stack switching. */
- if (ka->sa_flags & TARGET_SA_ONSTACK) {
- if (!sas_ss_flags(sp)) {
- sp = target_sigaltstack_used.ss_sp +
- target_sigaltstack_used.ss_size;
- }
- }
-
- /* This is the legacy signal stack switching. */
- else if (/* FIXME !user_mode(regs) */ 0 &&
- !(ka->sa_flags & TARGET_SA_RESTORER) &&
- ka->sa_restorer) {
- sp = (abi_ulong) ka->sa_restorer;
- }
-
- return (sp - frame_size) & -8ul;
-}
-
-static void save_sigregs(CPUS390XState *env, target_sigregs *sregs)
-{
- int i;
- //save_access_regs(current->thread.acrs); FIXME
-
- /* Copy a 'clean' PSW mask to the user to avoid leaking
- information about whether PER is currently on. */
- __put_user(env->psw.mask, &sregs->regs.psw.mask);
- __put_user(env->psw.addr, &sregs->regs.psw.addr);
- for (i = 0; i < 16; i++) {
- __put_user(env->regs[i], &sregs->regs.gprs[i]);
- }
- for (i = 0; i < 16; i++) {
- __put_user(env->aregs[i], &sregs->regs.acrs[i]);
- }
- /*
- * We have to store the fp registers to current->thread.fp_regs
- * to merge them with the emulated registers.
- */
- //save_fp_regs(&current->thread.fp_regs); FIXME
- for (i = 0; i < 16; i++) {
- __put_user(get_freg(env, i)->ll, &sregs->fpregs.fprs[i]);
- }
-}
-
-static void setup_frame(int sig, struct target_sigaction *ka,
- target_sigset_t *set, CPUS390XState *env)
-{
- sigframe *frame;
- abi_ulong frame_addr;
-
- frame_addr = get_sigframe(ka, env, sizeof(*frame));
- trace_user_setup_frame(env, frame_addr);
- if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) {
- goto give_sigsegv;
- }
-
- __put_user(set->sig[0], &frame->sc.oldmask[0]);
-
- save_sigregs(env, &frame->sregs);
-
- __put_user((abi_ulong)(unsigned long)&frame->sregs,
- (abi_ulong *)&frame->sc.sregs);
-
- /* Set up to return from userspace. If provided, use a stub
- already in userspace. */
- if (ka->sa_flags & TARGET_SA_RESTORER) {
- env->regs[14] = (unsigned long)
- ka->sa_restorer | PSW_ADDR_AMODE;
- } else {
- env->regs[14] = (frame_addr + offsetof(sigframe, retcode))
- | PSW_ADDR_AMODE;
- __put_user(S390_SYSCALL_OPCODE | TARGET_NR_sigreturn,
- (uint16_t *)(frame->retcode));
- }
-
- /* Set up backchain. */
- __put_user(env->regs[15], (abi_ulong *) frame);
-
- /* Set up registers for signal handler */
- env->regs[15] = frame_addr;
- env->psw.addr = (target_ulong) ka->_sa_handler | PSW_ADDR_AMODE;
-
- env->regs[2] = sig; //map_signal(sig);
- env->regs[3] = frame_addr += offsetof(typeof(*frame), sc);
-
- /* We forgot to include these in the sigcontext.
- To avoid breaking binary compatibility, they are passed as args. */
- env->regs[4] = 0; // FIXME: no clue... current->thread.trap_no;
- env->regs[5] = 0; // FIXME: no clue... current->thread.prot_addr;
-
- /* Place signal number on stack to allow backtrace from handler. */
- __put_user(env->regs[2], &frame->signo);
- unlock_user_struct(frame, frame_addr, 1);
- return;
-
-give_sigsegv:
- force_sigsegv(sig);
-}
-
-static void setup_rt_frame(int sig, struct target_sigaction *ka,
- target_siginfo_t *info,
- target_sigset_t *set, CPUS390XState *env)
-{
- int i;
- rt_sigframe *frame;
- abi_ulong frame_addr;
-
- frame_addr = get_sigframe(ka, env, sizeof *frame);
- trace_user_setup_rt_frame(env, frame_addr);
- if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 0)) {
- goto give_sigsegv;
- }
-
- tswap_siginfo(&frame->info, info);
-
- /* Create the ucontext. */
- __put_user(0, &frame->uc.tuc_flags);
- __put_user((abi_ulong)0, (abi_ulong *)&frame->uc.tuc_link);
- __put_user(target_sigaltstack_used.ss_sp, &frame->uc.tuc_stack.ss_sp);
- __put_user(sas_ss_flags(get_sp_from_cpustate(env)),
- &frame->uc.tuc_stack.ss_flags);
- __put_user(target_sigaltstack_used.ss_size, &frame->uc.tuc_stack.ss_size);
- save_sigregs(env, &frame->uc.tuc_mcontext);
- for (i = 0; i < TARGET_NSIG_WORDS; i++) {
- __put_user((abi_ulong)set->sig[i],
- (abi_ulong *)&frame->uc.tuc_sigmask.sig[i]);
- }
-
- /* Set up to return from userspace. If provided, use a stub
- already in userspace. */
- if (ka->sa_flags & TARGET_SA_RESTORER) {
- env->regs[14] = (unsigned long) ka->sa_restorer | PSW_ADDR_AMODE;
- } else {
- env->regs[14] = (unsigned long) frame->retcode | PSW_ADDR_AMODE;
- __put_user(S390_SYSCALL_OPCODE | TARGET_NR_rt_sigreturn,
- (uint16_t *)(frame->retcode));
- }
-
- /* Set up backchain. */
- __put_user(env->regs[15], (abi_ulong *) frame);
-
- /* Set up registers for signal handler */
- env->regs[15] = frame_addr;
- env->psw.addr = (target_ulong) ka->_sa_handler | PSW_ADDR_AMODE;
-
- env->regs[2] = sig; //map_signal(sig);
- env->regs[3] = frame_addr + offsetof(typeof(*frame), info);
- env->regs[4] = frame_addr + offsetof(typeof(*frame), uc);
- return;
-
-give_sigsegv:
- force_sigsegv(sig);
-}
-
-static int
-restore_sigregs(CPUS390XState *env, target_sigregs *sc)
-{
- int err = 0;
- int i;
-
- for (i = 0; i < 16; i++) {
- __get_user(env->regs[i], &sc->regs.gprs[i]);
- }
-
- __get_user(env->psw.mask, &sc->regs.psw.mask);
- trace_user_s390x_restore_sigregs(env, (unsigned long long)sc->regs.psw.addr,
- (unsigned long long)env->psw.addr);
- __get_user(env->psw.addr, &sc->regs.psw.addr);
- /* FIXME: 31-bit -> | PSW_ADDR_AMODE */
-
- for (i = 0; i < 16; i++) {
- __get_user(env->aregs[i], &sc->regs.acrs[i]);
- }
- for (i = 0; i < 16; i++) {
- __get_user(get_freg(env, i)->ll, &sc->fpregs.fprs[i]);
- }
-
- return err;
-}
-
-long do_sigreturn(CPUS390XState *env)
-{
- sigframe *frame;
- abi_ulong frame_addr = env->regs[15];
- target_sigset_t target_set;
- sigset_t set;
-
- trace_user_do_sigreturn(env, frame_addr);
- if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) {
- goto badframe;
- }
- __get_user(target_set.sig[0], &frame->sc.oldmask[0]);
-
- target_to_host_sigset_internal(&set, &target_set);
- set_sigmask(&set); /* ~_BLOCKABLE? */
-
- if (restore_sigregs(env, &frame->sregs)) {
- goto badframe;
- }
-
- unlock_user_struct(frame, frame_addr, 0);
- return -TARGET_QEMU_ESIGRETURN;
-
-badframe:
- force_sig(TARGET_SIGSEGV);
- return -TARGET_QEMU_ESIGRETURN;
-}
-
-long do_rt_sigreturn(CPUS390XState *env)
-{
- rt_sigframe *frame;
- abi_ulong frame_addr = env->regs[15];
- sigset_t set;
-
- trace_user_do_rt_sigreturn(env, frame_addr);
- if (!lock_user_struct(VERIFY_READ, frame, frame_addr, 1)) {
- goto badframe;
- }
- target_to_host_sigset(&set, &frame->uc.tuc_sigmask);
-
- set_sigmask(&set); /* ~_BLOCKABLE? */
-
- if (restore_sigregs(env, &frame->uc.tuc_mcontext)) {
- goto badframe;
- }
-
- if (do_sigaltstack(frame_addr + offsetof(rt_sigframe, uc.tuc_stack), 0,
- get_sp_from_cpustate(env)) == -EFAULT) {
- goto badframe;
- }
- unlock_user_struct(frame, frame_addr, 0);
- return -TARGET_QEMU_ESIGRETURN;
-
-badframe:
- unlock_user_struct(frame, frame_addr, 0);
- force_sig(TARGET_SIGSEGV);
- return -TARGET_QEMU_ESIGRETURN;
-}
-
#elif defined(TARGET_PPC)
/* Size of dummy stack frame allocated when calling signal handler.
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-29 05:18:13 +0000