1#include <inttypes.h>
2
3/*
4 * Dump the fixed-purpose ARM registers, along with some other info.
5 *
6 * This function MUST be compiled in ARM mode -- THUMB will yield bogus
7 * results.
8 *
9 * This will NOT preserve r0-r3/ip.
10 */
11void dvmMterpDumpArmRegs(uint32_t r0, uint32_t r1, uint32_t r2, uint32_t r3)
12{
13    register uint32_t rPC       asm("r4");
14    register uint32_t rFP       asm("r5");
15    register uint32_t rGLUE     asm("r6");
16    register uint32_t rINST     asm("r7");
17    register uint32_t rIBASE    asm("r8");
18    register uint32_t r9        asm("r9");
19    register uint32_t r10       asm("r10");
20
21    extern char dvmAsmInstructionStart[];
22
23    printf("REGS: r0=%08x r1=%08x r2=%08x r3=%08x\n", r0, r1, r2, r3);
24    printf("    : rPC=%08x rFP=%08x rGLUE=%08x rINST=%08x\n",
25        rPC, rFP, rGLUE, rINST);
26    printf("    : rIBASE=%08x r9=%08x r10=%08x\n", rIBASE, r9, r10);
27
28    MterpGlue* glue = (MterpGlue*) rGLUE;
29    const Method* method = glue->method;
30    printf("    + self is %p\n", dvmThreadSelf());
31    //printf("    + currently in %s.%s %s\n",
32    //    method->clazz->descriptor, method->name, method->shorty);
33    //printf("    + dvmAsmInstructionStart = %p\n", dvmAsmInstructionStart);
34    //printf("    + next handler for 0x%02x = %p\n",
35    //    rINST & 0xff, dvmAsmInstructionStart + (rINST & 0xff) * 64);
36}
37
38/*
39 * Dump the StackSaveArea for the specified frame pointer.
40 */
41void dvmDumpFp(void* fp, StackSaveArea* otherSaveArea)
42{
43    StackSaveArea* saveArea = SAVEAREA_FROM_FP(fp);
44    printf("StackSaveArea for fp %p [%p/%p]:\n", fp, saveArea, otherSaveArea);
45#ifdef EASY_GDB
46    printf("  prevSave=%p, prevFrame=%p savedPc=%p meth=%p curPc=%p\n",
47        saveArea->prevSave, saveArea->prevFrame, saveArea->savedPc,
48        saveArea->method, saveArea->xtra.currentPc);
49#else
50    printf("  prevFrame=%p savedPc=%p meth=%p curPc=%p fp[0]=0x%08x\n",
51        saveArea->prevFrame, saveArea->savedPc,
52        saveArea->method, saveArea->xtra.currentPc,
53        *(u4*)fp);
54#endif
55}
56
57/*
58 * Does the bulk of the work for common_printMethod().
59 */
60void dvmMterpPrintMethod(Method* method)
61{
62    /*
63     * It is a direct (non-virtual) method if it is static, private,
64     * or a constructor.
65     */
66    bool isDirect =
67        ((method->accessFlags & (ACC_STATIC|ACC_PRIVATE)) != 0) ||
68        (method->name[0] == '<');
69
70    char* desc = dexProtoCopyMethodDescriptor(&method->prototype);
71
72    printf("<%c:%s.%s %s> ",
73            isDirect ? 'D' : 'V',
74            method->clazz->descriptor,
75            method->name,
76            desc);
77
78    free(desc);
79}
80