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add debug function to print all registers

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mykola2312 2024-07-23 03:34:31 +03:00
parent a7fc495381
commit 654f083f60
2 changed files with 67 additions and 2 deletions
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61
include/debug.h
View file

@ -3,9 +3,70 @@
#ifdef DEBUG
#include <stdio.h>
#include <sys/user.h>
#define TRACE(fmt, ...) fprintf(stderr, "%s:%d:%s\tTRACE\t" fmt, __FILE__, __LINE__, __func__, ##__VA_ARGS__)
static void print_registers(const struct user_regs_struct* regs)
{
fprintf(stderr,
"r15\t%p\n"
"r14\t%p\n"
"r13\t%p\n"
"r12\t%p\n"
"rbp\t%p\n"
"rbx\t%p\n"
"r11\t%p\n"
"r10\t%p\n"
"r9\t%p\n"
"r8\t%p\n"
"rax\t%p\n"
"rcx\t%p\n"
"rdx\t%p\n"
"rsi\t%p\n"
"rdi\t%p\n"
"orig_rax\t%p\n"
"rip\t%p\n"
"cs\t%p\n"
"eflags\t%p\n"
"rsp\t%p\n"
"ss\t%p\n"
"fs_base\t%p\n"
"gs_base\t%p\n"
"ds\t%p\n"
"es\t%p\n"
"fs\t%p\n"
"gs\t%p\n",
(void*)regs->r15,
(void*)regs->r14,
(void*)regs->r13,
(void*)regs->r12,
(void*)regs->rbp,
(void*)regs->rbx,
(void*)regs->r11,
(void*)regs->r10,
(void*)regs->r9,
(void*)regs->r8,
(void*)regs->rax,
(void*)regs->rcx,
(void*)regs->rdx,
(void*)regs->rsi,
(void*)regs->rdi,
(void*)regs->orig_rax,
(void*)regs->rip,
(void*)regs->cs,
(void*)regs->eflags,
(void*)regs->rsp,
(void*)regs->ss,
(void*)regs->fs_base,
(void*)regs->gs_base,
(void*)regs->ds,
(void*)regs->es,
(void*)regs->fs,
(void*)regs->gs
);
}
#else
#define TRACE(fmt, ...)
#define print_registers(regs)
#endif
#endif

8
src/process.c
View file

@ -290,7 +290,9 @@ int process_read_registers(process_status_t* thread, struct user_regs_struct* re
};
memset(regs, '\0', sizeof(struct user_regs_struct));
return ptrace(PTRACE_GETREGSET, thread->pid, NT_PRSTATUS, &data) < 0;
long ret = ptrace(PTRACE_GETREGSET, thread->pid, NT_PRSTATUS, &data);
print_registers(regs);
return ret < 0;
}
int process_write_registers(process_status_t* thread, const struct user_regs_struct* regs)
@ -300,5 +302,7 @@ int process_write_registers(process_status_t* thread, const struct user_regs_str
.iov_len = sizeof(struct user_regs_struct)
};
return ptrace(PTRACE_SETREGSET, thread->pid, NT_PRSTATUS, &data) < 0;
long ret = ptrace(PTRACE_SETREGSET, thread->pid, NT_PRSTATUS, &data);
print_registers(regs);
return ret < 0;
}