107 lines
2.3 KiB
C
107 lines
2.3 KiB
C
#include "uwx.h"
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#include "uwx_self.h"
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struct uwx_env *uenv;
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struct uwx_self_info *cbinfo;
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extern int uwx_get_frame_info(struct uwx_env *uenv);
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extern void dump_context(uint64_t *context);
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extern void prime_registers();
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int main(int argc, char **argv)
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{
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int status;
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unsigned int *wp;
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uenv = uwx_init();
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printf("uwx_init returned %08x\n", uenv);
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cbinfo = uwx_self_init_info(uenv);
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status = uwx_register_callbacks(
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uenv,
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(intptr_t)cbinfo,
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uwx_self_copyin,
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uwx_self_lookupip);
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printf("uwx_register_callbacks returned %d\n", status);
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uwx_self_init_context(uenv);
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printf("In main():\n");
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dump_context((uint64_t *)uenv);
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prime_registers();
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uwx_free(uenv);
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return 0;
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}
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int func1(void)
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{
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uwx_self_init_context(uenv);
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printf("In func1():\n");
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dump_context((uint64_t *)uenv);
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return func2();
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}
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int func2(void)
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{
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uwx_self_init_context(uenv);
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printf("In func2():\n");
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dump_context((uint64_t *)uenv);
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return func3();
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}
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int func3(void)
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{
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uwx_self_init_context(uenv);
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printf("In func3():\n");
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dump_context((uint64_t *)uenv);
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return func4();
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}
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int func4(void)
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{
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int status;
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int foo[10];
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uint64_t *p;
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uint64_t disp;
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uint64_t val;
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func5(foo);
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uwx_self_init_context(uenv);
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uwx_init_history(uenv);
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printf("In func4():\n");
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dump_context((uint64_t *)uenv);
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for (;;) {
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status = uwx_step(uenv);
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if (status != UWX_OK) {
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printf("uwx_step returned %d\n", status);
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break;
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}
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status = uwx_get_reg(uenv, UWX_REG_PFS, &val);
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if (status != UWX_OK) {
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printf("uwx_get_reg returned %d\n", status);
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break;
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}
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printf("After step:\n");
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dump_context((uint64_t *)uenv);
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status = uwx_get_spill_loc(uenv, UWX_REG_IP, &disp);
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if (status == UWX_OK) {
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p = (uint64_t *)(disp & ~0x7LL);
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if ((disp & 0x7) == UWX_DISP_RSTK(0))
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printf("IP spilled to backing store %08x = %08x\n",
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(int)p, (int)(*p));
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else if ((disp & 0x7) == UWX_DISP_MSTK(0))
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printf("IP spilled to mem stack %08x = %08x\n",
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(int)p, (int)(*p));
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else if ((disp & 0x7) == UWX_DISP_REG(0))
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printf("IP found in register %08x\n", (int)disp >> 4);
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else
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printf("IP history not available\n");
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}
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}
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return 0;
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}
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int func5(int *foo)
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{
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foo[0] = 0;
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return 0;
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}
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