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Make cpu_signal_handler work on Mac OS X/Darwin x86 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2400 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2007-02-05 21:41:46 +00:00
parent 19c80e50ee
commit d8ecc0b913
1 changed files with 15 additions and 3 deletions
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18
cpu-exec.c
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@ -1176,6 +1176,18 @@ static inline int handle_cpu_signal(unsigned long pc, unsigned long address,
#if defined(__i386__) #if defined(__i386__)
#if defined(__APPLE__)
# include <sys/ucontext.h>
# define EIP_sig(context) (*((unsigned long*)&(context)->uc_mcontext->ss.eip))
# define TRAP_sig(context) ((context)->uc_mcontext->es.trapno)
# define ERROR_sig(context) ((context)->uc_mcontext->es.err)
#else
# define EIP_sig(context) ((context)->uc_mcontext.gregs[REG_EIP])
# define TRAP_sig(context) ((context)->uc_mcontext.gregs[REG_TRAPNO])
# define ERROR_sig(context) ((context)->uc_mcontext.gregs[REG_ERR])
#endif
#if defined(USE_CODE_COPY) #if defined(USE_CODE_COPY)
static void cpu_send_trap(unsigned long pc, int trap, static void cpu_send_trap(unsigned long pc, int trap,
struct ucontext *uc) struct ucontext *uc)
@ -1210,8 +1222,8 @@ int cpu_signal_handler(int host_signum, void *pinfo,
#define REG_ERR ERR #define REG_ERR ERR
#define REG_TRAPNO TRAPNO #define REG_TRAPNO TRAPNO
#endif #endif
pc = uc->uc_mcontext.gregs[REG_EIP]; pc = EIP_sig(uc);
trapno = uc->uc_mcontext.gregs[REG_TRAPNO]; trapno = TRAP_sig(uc);
#if defined(TARGET_I386) && defined(USE_CODE_COPY) #if defined(TARGET_I386) && defined(USE_CODE_COPY)
if (trapno == 0x00 || trapno == 0x05) { if (trapno == 0x00 || trapno == 0x05) {
/* send division by zero or bound exception */ /* send division by zero or bound exception */
@ -1221,7 +1233,7 @@ int cpu_signal_handler(int host_signum, void *pinfo,
#endif #endif
return handle_cpu_signal(pc, (unsigned long)info->si_addr, return handle_cpu_signal(pc, (unsigned long)info->si_addr,
trapno == 0xe ? trapno == 0xe ?
(uc->uc_mcontext.gregs[REG_ERR] >> 1) & 1 : 0, (ERROR_sig(uc) >> 1) & 1 : 0,
&uc->uc_sigmask, puc); &uc->uc_sigmask, puc);
} }