diff options
| author | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2003-03-23 16:49:39 +0000 |
|---|---|---|
| committer | bellard <bellard@c046a42c-6fe2-441c-8c8c-71466251a162> | 2003-03-23 16:49:39 +0000 |
| commit | 9de5e440b9f6a6c6305c0b81d1df4ddcc5a4b966 (patch) | |
| tree | 718d0257eb2e9cac1196bd8ca83dfd11c15fd475 /cpu-i386.h | |
| parent | 66fb9763af9cd743158957e8c9c2559d922b1c22 (diff) | |
| download | qemu-9de5e440b9f6a6c6305c0b81d1df4ddcc5a4b966.tar.gz | |
better signal/exception support
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@42 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'cpu-i386.h')
| -rw-r--r-- | cpu-i386.h | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/cpu-i386.h b/cpu-i386.h index 9125ecadc5..dbe18519bc 100644 --- a/cpu-i386.h +++ b/cpu-i386.h @@ -68,7 +68,7 @@ #define EXCP11_ALGN 18 #define EXCP12_MCHK 19 -#define EXCP_SIGNAL 256 /* async signal */ +#define EXCP_INTERRUPT 256 /* async interruption */ enum { CC_OP_DYNAMIC, /* must use dynamic code to get cc_op */ @@ -170,9 +170,10 @@ typedef struct CPUX86State { /* various CPU modes */ int vm86; - /* exception handling */ + /* exception/interrupt handling */ jmp_buf jmp_env; int exception_index; + int interrupt_request; } CPUX86State; /* all CPU memory access use these macros */ @@ -383,11 +384,19 @@ int cpu_x86_inl(int addr); CPUX86State *cpu_x86_init(void); int cpu_x86_exec(CPUX86State *s); +void cpu_x86_interrupt(CPUX86State *s); void cpu_x86_close(CPUX86State *s); /* needed to load some predefinied segment registers */ void cpu_x86_load_seg(CPUX86State *s, int seg_reg, int selector); +/* you can call these signal handler from you SIGBUS and SIGSEGV + signal handlers to inform the virtual CPU of exceptions. non zero + is returned if the signal was handled by the virtual CPU. */ +struct siginfo; +int cpu_x86_signal_handler(int host_signum, struct siginfo *info, + void *puc); + /* internal functions */ #define GEN_FLAG_CODE32_SHIFT 0 |