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Preliminary BSD user emulator support

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5544 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
blueswir1 2008-10-26 20:33:16 +00:00
parent 46f42f2940
commit 84778508d7
24 changed files with 5943 additions and 1 deletions
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16
cpu-exec.c
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@ -34,8 +34,10 @@
#undef EDI
#undef EIP
#include <signal.h>
#ifdef __linux__
#include <sys/ucontext.h>
#endif
#endif
#if defined(__sparc__) && !defined(HOST_SOLARIS)
// Work around ugly bugs in glibc that mangle global register contents
@ -66,7 +68,11 @@ void cpu_loop_exit(void)
void cpu_resume_from_signal(CPUState *env1, void *puc)
{
#if !defined(CONFIG_SOFTMMU)
#ifdef __linux__
struct ucontext *uc = puc;
#elif defined(__OpenBSD__)
struct sigcontext *uc = puc;
#endif
#endif
env = env1;
@ -76,7 +82,11 @@ void cpu_resume_from_signal(CPUState *env1, void *puc)
#if !defined(CONFIG_SOFTMMU)
if (puc) {
/* XXX: use siglongjmp ? */
#ifdef __linux__
sigprocmask(SIG_SETMASK, &uc->uc_sigmask, NULL);
#elif defined(__OpenBSD__)
sigprocmask(SIG_SETMASK, &uc->sc_mask, NULL);
#endif
}
#endif
longjmp(env->jmp_env, 1);
@ -1328,9 +1338,15 @@ int cpu_signal_handler(int host_signum, void *pinfo,
/* XXX: is there a standard glibc define ? */
unsigned long pc = regs[1];
#else
#ifdef __linux__
struct sigcontext *sc = puc;
unsigned long pc = sc->sigc_regs.tpc;
void *sigmask = (void *)sc->sigc_mask;
#elif defined(__OpenBSD__)
struct sigcontext *uc = puc;
unsigned long pc = uc->sc_pc;
void *sigmask = (void *)(long)uc->sc_mask;
#endif
#endif
/* XXX: need kernel patch to get write flag faster */