dwarf-assembly/tests/stack_walked.cpp

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#include <cstdio>
#include <dlfcn.h>
#include "../stack_walker/stack_walker.hpp"
void fill_my_stack1(volatile int&);
void fill_my_stack2(volatile int&);
void stack_filled() {
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int frame_id = 0;
walk_stack([&frame_id](const unwind_context_t& ctx) {
Dl_info func_info;
int dl_rc = dladdr((void*) ctx.rip, &func_info);
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printf("#%d - %s — %%rip = 0x%lx, %%rbp = 0x%lx, %%rsp = 0x%lx\n",
++frame_id,
(dl_rc != 0) ? func_info.dli_sname : "[Unknown func]",
get_register(ctx, SW_REG_RIP),
get_register(ctx, SW_REG_RBP),
get_register(ctx, SW_REG_RSP));
});
}
void fill_my_stack2(volatile int& depth) {
if(depth == 0)
stack_filled();
else {
--depth;
fill_my_stack1(depth);
}
}
void fill_my_stack1(volatile int& depth) {
if(depth == 0)
stack_filled();
else {
--depth;
fill_my_stack2(depth);
}
}
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int main() {
Dl_info main_info;
int rc = dladdr((void*)&main, &main_info);
printf("I'm in %s!\n", (rc != 0) ? main_info.dli_sname : "[No data]");
stack_walker_init();
printf("Stack walker init'd!\n");
volatile int depth = 10;
fill_my_stack1(depth);
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return 0;
}