ref: c7019579acf8abbe181d3b97d03caf4c7e537c50
dir: /lib/acid/386/
// 386 support defn acidinit() // Called after all the init modules are loaded { bpl = {}; bpid = -1; bpfmt = 'b'; srcpath = { "./", }; nopstop = 0; srcfiles = {}; // list of loaded files srctext = {}; // the text of the files Labspoff = 4; // adjustment to Label's sp Labpcoff = 0; // adjustment to Label's pc } defn linkreg(addr) { return 0; } defn stk() // trace { _stk(*PC, *SP, 0, 0); } defn lstk() // trace with locals { _stk(*PC, *SP, 0, 1); } defn kstk() // kernel stack, PC and SP point to kernel { _stk(*PC, *SP, 0, 0); } defn lkstk() // kernel stack and locals, PC and SP are kernel's { _stk(*PC, *SP, 0, 1); } defn gpr() // print general(hah hah!) purpose registers { print("AX\t", *AX, " BX\t", *BX, " CX\t", *CX, " DX\t", *DX, "\n"); print("DI\t", *DI, " SI\t", *SI, " BP\t", *BP, "\n"); } defn spr() // print special processor registers { local pc; local cause; pc = *PC; print("PC\t", pc, " ", fmt(pc, 'a'), " "); pfl(pc); print("SP\t", *SP, " ECODE ", *ECODE, " EFLAG ", *EFLAGS, "\n"); print("CS\t", *CS, " DS\t ", *DS, " SS\t", *SS, "\n"); print("GS\t", *GS, " FS\t ", *FS, " ES\t", *ES, "\n"); cause = *TRAP; print("TRAP\t", cause, " ", reason(cause), "\n"); } defn regs() // print all registers { spr(); gpr(); } defn step() { local ur; local addrs; local id; local l; local b; local bl; local sl; local pc; complex Proc proc; ur = proc.dbgreg; if ur == 0 then error("step: process not in breakpoint trap"); complex Ureg ur; // // stop all kprocs that could potentially hit this breakpoint // make a list of all the breakpoints at this address // bl = {}; sl = {}; l = bpl; while l do { b = head l; if ((b[2] & *PC) == b[2]) then { if status(b[1]) != "Stopped" then { stop(b[1]); sl = append sl, b[1]; } bl = append bl, b; } l = tail l; } // // delete all the breakpoints at this address // if bl then { l = bl; while l do { b = head l; _bpconddel(b[0]); l = tail l; } } // // single step to the following address // addrs = follow(*PC); id = bpset(addrs[0]); startstop(pid); bpdel(id); // // restore all the breakpoints at this address // if bl then { l = bl; while l do { b = head l; _bpcondset(b[0], b[1], b[2], b[3]); l = tail l; } } // // restart all kprocs that could potentially hit this breakpoint // if sl then { l = sl; while l do { start(head l); l = tail l; } } } aggr Ureg { 'X' 0 di; 'X' 4 si; 'X' 8 bp; 'X' 12 nsp; 'X' 16 bx; 'X' 20 dx; 'X' 24 cx; 'X' 28 ax; 'X' 32 gs; 'X' 36 fs; 'X' 40 es; 'X' 44 ds; 'X' 48 trap; 'X' 52 ecode; 'X' 56 pc; 'X' 60 cs; 'X' 64 flags; { 'X' 68 usp; 'X' 68 sp; }; 'X' 72 ss; }; defn Ureg(addr) { complex Ureg addr; print(" di ", addr.di, "\n"); print(" si ", addr.si, "\n"); print(" bp ", addr.bp, "\n"); print(" nsp ", addr.nsp, "\n"); print(" bx ", addr.bx, "\n"); print(" dx ", addr.dx, "\n"); print(" cx ", addr.cx, "\n"); print(" ax ", addr.ax, "\n"); print(" gs ", addr.gs, "\n"); print(" fs ", addr.fs, "\n"); print(" es ", addr.es, "\n"); print(" ds ", addr.ds, "\n"); print(" trap ", addr.trap, "\n"); print(" ecode ", addr.ecode, "\n"); print(" pc ", addr.pc, "\n"); print(" cs ", addr.cs, "\n"); print(" flags ", addr.flags, "\n"); print(" sp ", addr.sp, "\n"); print("}\n"); print(" ss ", addr.ss, "\n"); }; print("/sys/lib/acid/386");