Signals, 2nd pass: syscall restarting now only works on EINTR (removed other exotic retcodes like ERESTARTSYS); signal handlers now receive 3 args, and the vregs struct is used to save the signal context, making the system beos compatible.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1681 a95241bf-73f2-0310-859d-f6bbb57e9c96
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lillo
@@ -120,6 +120,9 @@ typedef struct stack_t {
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#define SA_RESTART 0x08
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#define SA_STACK 0x10
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#ifdef __cplusplus
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extern "C" {
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#endif
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int sigaction(int sig, const struct sigaction *act, struct sigaction *oact);
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int sigemptyset(sigset_t *set);
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@@ -162,5 +165,167 @@ int sigsuspend(const sigset_t *mask);
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int kill(pid_t pid, int sig);
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int send_signal(pid_t tid, uint sig);
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#ifdef __cplusplus
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}
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#endif
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/* signal handlers get this as the last argument */
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typedef struct vregs vregs;
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#if __POWERPC__
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struct vregs
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{
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ulong pc, /* program counter */
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r0, /* scratch */
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r1, /* stack ptr */
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r2, /* TOC */
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r3,r4,r5,r6,r7,r8,r9,r10, /* volatile regs */
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r11,r12; /* scratch regs */
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double f0, /* fp scratch */
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f1,f2,f3,f4,f5,f6,f7,f8,f9,f10,f11,f12,f13; /* fp volatile regs */
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ulong filler1, /* place holder */
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fpscr, /* fp condition codes */
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ctr, xer, cr, msr, lr; /* misc. status */
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};
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#endif /* __POWERPC__ */
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#if __INTEL__
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typedef struct packed_fp_stack {
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unsigned char st0[10];
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unsigned char st1[10];
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unsigned char st2[10];
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unsigned char st3[10];
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unsigned char st4[10];
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unsigned char st5[10];
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unsigned char st6[10];
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unsigned char st7[10];
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} packed_fp_stack;
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typedef struct packed_mmx_regs {
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unsigned char mm0[10];
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unsigned char mm1[10];
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unsigned char mm2[10];
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unsigned char mm3[10];
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unsigned char mm4[10];
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unsigned char mm5[10];
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unsigned char mm6[10];
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unsigned char mm7[10];
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} packed_mmx_regs;
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typedef struct old_extended_regs {
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unsigned short fp_control;
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unsigned short _reserved1;
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unsigned short fp_status;
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unsigned short _reserved2;
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unsigned short fp_tag;
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unsigned short _reserved3;
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unsigned long fp_eip;
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unsigned short fp_cs;
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unsigned short fp_opcode;
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unsigned long fp_datap;
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unsigned short fp_ds;
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unsigned short _reserved4;
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union {
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packed_fp_stack fp;
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packed_mmx_regs mmx;
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} fp_mmx;
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} old_extended_regs;
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typedef struct fp_stack {
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unsigned char st0[10];
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unsigned char _reserved_42_47[6];
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unsigned char st1[10];
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unsigned char _reserved_58_63[6];
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unsigned char st2[10];
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unsigned char _reserved_74_79[6];
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unsigned char st3[10];
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unsigned char _reserved_90_95[6];
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unsigned char st4[10];
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unsigned char _reserved_106_111[6];
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unsigned char st5[10];
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unsigned char _reserved_122_127[6];
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unsigned char st6[10];
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unsigned char _reserved_138_143[6];
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unsigned char st7[10];
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unsigned char _reserved_154_159[6];
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} fp_stack;
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typedef struct mmx_regs {
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unsigned char mm0[10];
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unsigned char _reserved_42_47[6];
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unsigned char mm1[10];
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unsigned char _reserved_58_63[6];
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unsigned char mm2[10];
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unsigned char _reserved_74_79[6];
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unsigned char mm3[10];
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unsigned char _reserved_90_95[6];
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unsigned char mm4[10];
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unsigned char _reserved_106_111[6];
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unsigned char mm5[10];
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unsigned char _reserved_122_127[6];
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unsigned char mm6[10];
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unsigned char _reserved_138_143[6];
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unsigned char mm7[10];
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unsigned char _reserved_154_159[6];
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} mmx_regs;
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typedef struct xmmx_regs {
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unsigned char xmm0[16];
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unsigned char xmm1[16];
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unsigned char xmm2[16];
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unsigned char xmm3[16];
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unsigned char xmm4[16];
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unsigned char xmm5[16];
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unsigned char xmm6[16];
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unsigned char xmm7[16];
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} xmmx_regs;
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typedef struct new_extended_regs {
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unsigned short fp_control;
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unsigned short fp_status;
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unsigned short fp_tag;
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unsigned short fp_opcode;
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unsigned long fp_eip;
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unsigned short fp_cs;
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unsigned short res_14_15;
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unsigned long fp_datap;
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unsigned short fp_ds;
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unsigned short _reserved_22_23;
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unsigned long mxcsr;
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unsigned long _reserved_28_31;
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union {
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fp_stack fp;
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mmx_regs mmx;
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} fp_mmx;
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xmmx_regs xmmx;
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unsigned char _reserved_288_511[224];
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} new_extended_regs;
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typedef struct extended_regs {
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union {
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old_extended_regs old_format;
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new_extended_regs new_format;
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} state;
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unsigned long format;
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} extended_regs;
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struct vregs {
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unsigned long eip;
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unsigned long eflags;
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unsigned long eax;
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unsigned long ecx;
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unsigned long edx;
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unsigned long esp;
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unsigned long ebp;
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unsigned long _reserved_1;
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extended_regs xregs;
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unsigned long _reserved_2[3];
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};
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#endif /* __INTEL__ */
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#endif /* _SIGNAL_H_ */
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