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authorLaurent Vivier <laurent@vivier.eu>2018-04-24 21:26:20 +0200
committerLaurent Vivier <laurent@vivier.eu>2018-04-30 09:47:47 +0200
commitf9fb3ba359637f73f1c2009b1447a994e5becee8 (patch)
treedf449f42e04a6fc59e27ac6401fd8be920241e62 /linux-user/signal.c
parent0f22162a4df4b477eb1a5a3c2b9906ace8128a4c (diff)
linux-user: move microblaze signal.c parts to microblaze directory
No code change, only move code from signal.c to microblaze/signal.c, except adding includes and exporting setup_frame() and setup_rt_frame(). Signed-off-by: Laurent Vivier <laurent@vivier.eu> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20180424192635.6027-6-laurent@vivier.eu>
Diffstat (limited to 'linux-user/signal.c')
-rw-r--r--linux-user/signal.c227
1 files changed, 0 insertions, 227 deletions
diff --git a/linux-user/signal.c b/linux-user/signal.c
index 5429c9aa38..546311221b 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -2364,233 +2364,6 @@ badframe:
return -TARGET_QEMU_ESIGRETURN;
}
-#elif defined(TARGET_MICROBLAZE)
-
-struct target_sigcontext {
- struct target_pt_regs regs; /* needs to be first */
- uint32_t oldmask;
-};
-
-struct target_stack_t {
- abi_ulong ss_sp;
- int ss_flags;
- unsigned int ss_size;
-};
-
-struct target_ucontext {
- abi_ulong tuc_flags;
- abi_ulong tuc_link;
- struct target_stack_t tuc_stack;
- struct target_sigcontext tuc_mcontext;
- uint32_t tuc_extramask[TARGET_NSIG_WORDS - 1];
-};
-
-/* Signal frames. */
-struct target_signal_frame {
- struct target_ucontext uc;
- uint32_t extramask[TARGET_NSIG_WORDS - 1];
- uint32_t tramp[2];
-};
-
-struct rt_signal_frame {
- siginfo_t info;
- ucontext_t uc;
- uint32_t tramp[2];
-};
-
-static void setup_sigcontext(struct target_sigcontext *sc, CPUMBState *env)
-{
- __put_user(env->regs[0], &sc->regs.r0);
- __put_user(env->regs[1], &sc->regs.r1);
- __put_user(env->regs[2], &sc->regs.r2);
- __put_user(env->regs[3], &sc->regs.r3);
- __put_user(env->regs[4], &sc->regs.r4);
- __put_user(env->regs[5], &sc->regs.r5);
- __put_user(env->regs[6], &sc->regs.r6);
- __put_user(env->regs[7], &sc->regs.r7);
- __put_user(env->regs[8], &sc->regs.r8);
- __put_user(env->regs[9], &sc->regs.r9);
- __put_user(env->regs[10], &sc->regs.r10);
- __put_user(env->regs[11], &sc->regs.r11);
- __put_user(env->regs[12], &sc->regs.r12);
- __put_user(env->regs[13], &sc->regs.r13);
- __put_user(env->regs[14], &sc->regs.r14);
- __put_user(env->regs[15], &sc->regs.r15);
- __put_user(env->regs[16], &sc->regs.r16);
- __put_user(env->regs[17], &sc->regs.r17);
- __put_user(env->regs[18], &sc->regs.r18);
- __put_user(env->regs[19], &sc->regs.r19);
- __put_user(env->regs[20], &sc->regs.r20);
- __put_user(env->regs[21], &sc->regs.r21);
- __put_user(env->regs[22], &sc->regs.r22);
- __put_user(env->regs[23], &sc->regs.r23);
- __put_user(env->regs[24], &sc->regs.r24);
- __put_user(env->regs[25], &sc->regs.r25);
- __put_user(env->regs[26], &sc->regs.r26);
- __put_user(env->regs[27], &sc->regs.r27);
- __put_user(env->regs[28], &sc->regs.r28);
- __put_user(env->regs[29], &sc->regs.r29);
- __put_user(env->regs[30], &sc->regs.r30);
- __put_user(env->regs[31], &sc->regs.r31);
- __put_user(env->sregs[SR_PC], &sc->regs.pc);
-}
-
-static void restore_sigcontext(struct target_sigcontext *sc, CPUMBState *env)
-{
- __get_user(env->regs[0], &sc->regs.r0);
- __get_user(env->regs[1], &sc->regs.r1);
- __get_user(env->regs[2], &sc->regs.r2);
- __get_user(env->regs[3], &sc->regs.r3);
- __get_user(env->regs[4], &sc->regs.r4);
- __get_user(env->regs[5], &sc->regs.r5);
- __get_user(env->regs[6], &sc->regs.r6);
- __get_user(env->regs[7], &sc->regs.r7);
- __get_user(env->regs[8], &sc->regs.r8);
- __get_user(env->regs[9], &sc->regs.r9);
- __get_user(env->regs[10], &sc->regs.r10);
- __get_user(env->regs[11], &sc->regs.r11);
- __get_user(env->regs[12], &sc->regs.r12);
- __get_user(env->regs[13], &sc->regs.r13);
- __get_user(env->regs[14], &sc->regs.r14);
- __get_user(env->regs[15], &sc->regs.r15);
- __get_user(env->regs[16], &sc->regs.r16);
- __get_user(env->regs[17], &sc->regs.r17);
- __get_user(env->regs[18], &sc->regs.r18);
- __get_user(env->regs[19], &sc->regs.r19);
- __get_user(env->regs[20], &sc->regs.r20);
- __get_user(env->regs[21], &sc->regs.r21);
- __get_user(env->regs[22], &sc->regs.r22);
- __get_user(env->regs[23], &sc->regs.r23);
- __get_user(env->regs[24], &sc->regs.r24);
- __get_user(env->regs[25], &sc->regs.r25);
- __get_user(env->regs[26], &sc->regs.r26);
- __get_user(env->regs[27], &sc->regs.r27);
- __get_user(env->regs[28], &sc->regs.r28);
- __get_user(env->regs[29], &sc->regs.r29);
- __get_user(env->regs[30], &sc->regs.r30);
- __get_user(env->regs[31], &sc->regs.r31);
- __get_user(env->sregs[SR_PC], &sc->regs.pc);
-}
-
-static abi_ulong get_sigframe(struct target_sigaction *ka,
- CPUMBState *env, int frame_size)
-{
- abi_ulong sp = env->regs[1];
-
- if ((ka->sa_flags & TARGET_SA_ONSTACK) != 0 && !on_sig_stack(sp)) {
- sp = target_sigaltstack_used.ss_sp + target_sigaltstack_used.ss_size;
- }
-
- return ((sp - frame_size) & -8UL);
-}
-
-static void setup_frame(int sig, struct target_sigaction *ka,
- target_sigset_t *set, CPUMBState *env)
-{
- struct target_signal_frame *frame;
- abi_ulong frame_addr;
- int i;
-
- 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 badframe;
-
- /* Save the mask. */
- __put_user(set->sig[0], &frame->uc.tuc_mcontext.oldmask);
-
- for(i = 1; i < TARGET_NSIG_WORDS; i++) {
- __put_user(set->sig[i], &frame->extramask[i - 1]);
- }
-
- setup_sigcontext(&frame->uc.tuc_mcontext, env);
-
- /* Set up to return from userspace. If provided, use a stub
- already in userspace. */
- /* minus 8 is offset to cater for "rtsd r15,8" offset */
- if (ka->sa_flags & TARGET_SA_RESTORER) {
- env->regs[15] = ((unsigned long)ka->sa_restorer)-8;
- } else {
- uint32_t t;
- /* Note, these encodings are _big endian_! */
- /* addi r12, r0, __NR_sigreturn */
- t = 0x31800000UL | TARGET_NR_sigreturn;
- __put_user(t, frame->tramp + 0);
- /* brki r14, 0x8 */
- t = 0xb9cc0008UL;
- __put_user(t, frame->tramp + 1);
-
- /* Return from sighandler will jump to the tramp.
- Negative 8 offset because return is rtsd r15, 8 */
- env->regs[15] = frame_addr + offsetof(struct target_signal_frame, tramp)
- - 8;
- }
-
- /* Set up registers for signal handler */
- env->regs[1] = frame_addr;
- /* Signal handler args: */
- env->regs[5] = sig; /* Arg 0: signum */
- env->regs[6] = 0;
- /* arg 1: sigcontext */
- env->regs[7] = frame_addr += offsetof(typeof(*frame), uc);
-
- /* Offset of 4 to handle microblaze rtid r14, 0 */
- env->sregs[SR_PC] = (unsigned long)ka->_sa_handler;
-
- unlock_user_struct(frame, frame_addr, 1);
- return;
-badframe:
- force_sigsegv(sig);
-}
-
-static void setup_rt_frame(int sig, struct target_sigaction *ka,
- target_siginfo_t *info,
- target_sigset_t *set, CPUMBState *env)
-{
- fprintf(stderr, "Microblaze setup_rt_frame: not implemented\n");
-}
-
-long do_sigreturn(CPUMBState *env)
-{
- struct target_signal_frame *frame;
- abi_ulong frame_addr;
- target_sigset_t target_set;
- sigset_t set;
- int i;
-
- frame_addr = env->regs[R_SP];
- trace_user_do_sigreturn(env, frame_addr);
- /* Make sure the guest isn't playing games. */
- if (!lock_user_struct(VERIFY_WRITE, frame, frame_addr, 1))
- goto badframe;
-
- /* Restore blocked signals */
- __get_user(target_set.sig[0], &frame->uc.tuc_mcontext.oldmask);
- for(i = 1; i < TARGET_NSIG_WORDS; i++) {
- __get_user(target_set.sig[i], &frame->extramask[i - 1]);
- }
- target_to_host_sigset_internal(&set, &target_set);
- set_sigmask(&set);
-
- restore_sigcontext(&frame->uc.tuc_mcontext, env);
- /* We got here through a sigreturn syscall, our path back is via an
- rtb insn so setup r14 for that. */
- env->regs[14] = env->sregs[SR_PC];
-
- unlock_user_struct(frame, frame_addr, 0);
- return -TARGET_QEMU_ESIGRETURN;
-badframe:
- force_sig(TARGET_SIGSEGV);
- return -TARGET_QEMU_ESIGRETURN;
-}
-
-long do_rt_sigreturn(CPUMBState *env)
-{
- trace_user_do_rt_sigreturn(env, 0);
- fprintf(stderr, "Microblaze do_rt_sigreturn: not implemented\n");
- return -TARGET_ENOSYS;
-}
-
#elif defined(TARGET_CRIS)
struct target_sigcontext {