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Partial support for 34K multithreading, not functional yet.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3156 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths
2007-09-06 00:18:15 +00:00
parent 606b41e702
commit ead9360e2f
18 changed files with 2305 additions and 826 deletions
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36
linux-user/signal.c
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@@ -1686,10 +1686,10 @@ setup_sigcontext(CPUState *regs, struct target_sigcontext *sc)
{
int err = 0;
err |= __put_user(regs->PC, &sc->sc_pc);
err |= __put_user(regs->PC[regs->current_tc], &sc->sc_pc);
#define save_gp_reg(i) do { \
err |= __put_user(regs->gpr[i], &sc->sc_regs[i]); \
#define save_gp_reg(i) do { \
err |= __put_user(regs->gpr[i][regs->current_tc], &sc->sc_regs[i]); \
} while(0)
__put_user(0, &sc->sc_regs[0]); save_gp_reg(1); save_gp_reg(2);
save_gp_reg(3); save_gp_reg(4); save_gp_reg(5); save_gp_reg(6);
@@ -1702,8 +1702,8 @@ setup_sigcontext(CPUState *regs, struct target_sigcontext *sc)
save_gp_reg(31);
#undef save_gp_reg
err |= __put_user(regs->HI, &sc->sc_mdhi);
err |= __put_user(regs->LO, &sc->sc_mdlo);
err |= __put_user(regs->HI[0][regs->current_tc], &sc->sc_mdhi);
err |= __put_user(regs->LO[0][regs->current_tc], &sc->sc_mdlo);
/* Not used yet, but might be useful if we ever have DSP suppport */
#if 0
@@ -1763,11 +1763,11 @@ restore_sigcontext(CPUState *regs, struct target_sigcontext *sc)
err |= __get_user(regs->CP0_EPC, &sc->sc_pc);
err |= __get_user(regs->HI, &sc->sc_mdhi);
err |= __get_user(regs->LO, &sc->sc_mdlo);
err |= __get_user(regs->HI[0][regs->current_tc], &sc->sc_mdhi);
err |= __get_user(regs->LO[0][regs->current_tc], &sc->sc_mdlo);
#define restore_gp_reg(i) do { \
err |= __get_user(regs->gpr[i], &sc->sc_regs[i]); \
#define restore_gp_reg(i) do { \
err |= __get_user(regs->gpr[i][regs->current_tc], &sc->sc_regs[i]); \
} while(0)
restore_gp_reg( 1); restore_gp_reg( 2); restore_gp_reg( 3);
restore_gp_reg( 4); restore_gp_reg( 5); restore_gp_reg( 6);
@@ -1833,7 +1833,7 @@ get_sigframe(struct emulated_sigaction *ka, CPUState *regs, size_t frame_size)
unsigned long sp;
/* Default to using normal stack */
sp = regs->gpr[29];
sp = regs->gpr[29][regs->current_tc];
/*
* FPU emulator may have it's own trampoline active just
@@ -1881,15 +1881,15 @@ static void setup_frame(int sig, struct emulated_sigaction * ka,
* $25 and PC point to the signal handler, $29 points to the
* struct sigframe.
*/
regs->gpr[ 4] = sig;
regs->gpr[ 5] = 0;
regs->gpr[ 6] = h2g(&frame->sf_sc);
regs->gpr[29] = h2g(frame);
regs->gpr[31] = h2g(frame->sf_code);
regs->gpr[ 4][regs->current_tc] = sig;
regs->gpr[ 5][regs->current_tc] = 0;
regs->gpr[ 6][regs->current_tc] = h2g(&frame->sf_sc);
regs->gpr[29][regs->current_tc] = h2g(frame);
regs->gpr[31][regs->current_tc] = h2g(frame->sf_code);
/* The original kernel code sets CP0_EPC to the handler
* since it returns to userland using eret
* we cannot do this here, and we must set PC directly */
regs->PC = regs->gpr[25] = ka->sa._sa_handler;
regs->PC[regs->current_tc] = regs->gpr[25][regs->current_tc] = ka->sa._sa_handler;
return;
give_sigsegv:
@@ -1907,7 +1907,7 @@ long do_sigreturn(CPUState *regs)
#if defined(DEBUG_SIGNAL)
fprintf(stderr, "do_sigreturn\n");
#endif
frame = (struct sigframe *) regs->gpr[29];
frame = (struct sigframe *) regs->gpr[29][regs->current_tc];
if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
goto badframe;
@@ -1934,7 +1934,7 @@ long do_sigreturn(CPUState *regs)
/* Unreached */
#endif
regs->PC = regs->CP0_EPC;
regs->PC[regs->current_tc] = regs->CP0_EPC;
/* I am not sure this is right, but it seems to work
* maybe a problem with nested signals ? */
regs->CP0_EPC = 0;