int UnwindContext::find_proc_info(unw_addr_space_t /*as*/, unw_word_t ip, unw_proc_info_t* pip, int need_unwind_info,
void* arg) noexcept
{
- simgrid::mc::UnwindContext* context = (simgrid::mc::UnwindContext*) arg;
- return unw_get_accessors(context->process_->unw_underlying_addr_space)->find_proc_info(
- context->process_->unw_underlying_addr_space, ip, pip,
- need_unwind_info, context->process_->unw_underlying_context
- );
+ simgrid::mc::UnwindContext* context = (simgrid::mc::UnwindContext*)arg;
+ return unw_get_accessors(context->process_->unw_underlying_addr_space)
+ ->find_proc_info(context->process_->unw_underlying_addr_space, ip, pip, need_unwind_info,
+ context->process_->unw_underlying_context);
}
/** Release frame unwind information (libunwind method)
*/
void UnwindContext::put_unwind_info(unw_addr_space_t /*as*/, unw_proc_info_t* pip, void* arg) noexcept
{
- simgrid::mc::UnwindContext* context = (simgrid::mc::UnwindContext*) arg;
- return unw_get_accessors(context->process_->unw_underlying_addr_space)->put_unwind_info(
- context->process_->unw_underlying_addr_space, pip,
- context->process_->unw_underlying_context
- );
+ simgrid::mc::UnwindContext* context = (simgrid::mc::UnwindContext*)arg;
+ return unw_get_accessors(context->process_->unw_underlying_addr_space)
+ ->put_unwind_info(context->process_->unw_underlying_addr_space, pip, context->process_->unw_underlying_context);
}
/** (libunwind method)
*/
int UnwindContext::get_dyn_info_list_addr(unw_addr_space_t /*as*/, unw_word_t* dilap, void* arg) noexcept
{
- simgrid::mc::UnwindContext* context = (simgrid::mc::UnwindContext*) arg;
- return unw_get_accessors(context->process_->unw_underlying_addr_space)->get_dyn_info_list_addr(
- context->process_->unw_underlying_addr_space,
- dilap,
- context->process_->unw_underlying_context
- );
+ simgrid::mc::UnwindContext* context = (simgrid::mc::UnwindContext*)arg;
+ return unw_get_accessors(context->process_->unw_underlying_addr_space)
+ ->get_dyn_info_list_addr(context->process_->unw_underlying_addr_space, dilap,
+ context->process_->unw_underlying_context);
}
/** Read from the target address space memory (libunwind method)
*/
int UnwindContext::access_mem(unw_addr_space_t /*as*/, unw_word_t addr, unw_word_t* valp, int write, void* arg) noexcept
{
- simgrid::mc::UnwindContext* context = (simgrid::mc::UnwindContext*) arg;
+ simgrid::mc::UnwindContext* context = (simgrid::mc::UnwindContext*)arg;
if (write)
- return - UNW_EREADONLYREG;
+ return -UNW_EREADONLYREG;
context->addressSpace_->read_bytes(valp, sizeof(unw_word_t), remote(addr));
return 0;
}
#ifdef __x86_64
mcontext_t* mcontext = &context->uc_mcontext;
switch (regnum) {
-# ifdef __linux__
- case UNW_X86_64_RAX: return &mcontext->gregs[REG_RAX];
- case UNW_X86_64_RDX: return &mcontext->gregs[REG_RDX];
- case UNW_X86_64_RCX: return &mcontext->gregs[REG_RCX];
- case UNW_X86_64_RBX: return &mcontext->gregs[REG_RBX];
- case UNW_X86_64_RSI: return &mcontext->gregs[REG_RSI];
- case UNW_X86_64_RDI: return &mcontext->gregs[REG_RDI];
- case UNW_X86_64_RBP: return &mcontext->gregs[REG_RBP];
- case UNW_X86_64_RSP: return &mcontext->gregs[REG_RSP];
- case UNW_X86_64_R8: return &mcontext->gregs[REG_R8];
- case UNW_X86_64_R9: return &mcontext->gregs[REG_R9];
- case UNW_X86_64_R10: return &mcontext->gregs[REG_R10];
- case UNW_X86_64_R11: return &mcontext->gregs[REG_R11];
- case UNW_X86_64_R12: return &mcontext->gregs[REG_R12];
- case UNW_X86_64_R13: return &mcontext->gregs[REG_R13];
- case UNW_X86_64_R14: return &mcontext->gregs[REG_R14];
- case UNW_X86_64_R15: return &mcontext->gregs[REG_R15];
- case UNW_X86_64_RIP: return &mcontext->gregs[REG_RIP];
-# elif defined __FreeBSD__
- case UNW_X86_64_RAX: return &mcontext->mc_rax;
- case UNW_X86_64_RDX: return &mcontext->mc_rdx;
- case UNW_X86_64_RCX: return &mcontext->mc_rcx;
- case UNW_X86_64_RBX: return &mcontext->mc_rbx;
- case UNW_X86_64_RSI: return &mcontext->mc_rsi;
- case UNW_X86_64_RDI: return &mcontext->mc_rdi;
- case UNW_X86_64_RBP: return &mcontext->mc_rbp;
- case UNW_X86_64_RSP: return &mcontext->mc_rsp;
- case UNW_X86_64_R8: return &mcontext->mc_r8;
- case UNW_X86_64_R9: return &mcontext->mc_r9;
- case UNW_X86_64_R10: return &mcontext->mc_r10;
- case UNW_X86_64_R11: return &mcontext->mc_r11;
- case UNW_X86_64_R12: return &mcontext->mc_r12;
- case UNW_X86_64_R13: return &mcontext->mc_r13;
- case UNW_X86_64_R14: return &mcontext->mc_r14;
- case UNW_X86_64_R15: return &mcontext->mc_r15;
- case UNW_X86_64_RIP: return &mcontext->mc_rip;
-# else
-# error "Unable to get register from ucontext, please add your case"
-# endif
- default: return nullptr;
+#ifdef __linux__
+ case UNW_X86_64_RAX:
+ return &mcontext->gregs[REG_RAX];
+ case UNW_X86_64_RDX:
+ return &mcontext->gregs[REG_RDX];
+ case UNW_X86_64_RCX:
+ return &mcontext->gregs[REG_RCX];
+ case UNW_X86_64_RBX:
+ return &mcontext->gregs[REG_RBX];
+ case UNW_X86_64_RSI:
+ return &mcontext->gregs[REG_RSI];
+ case UNW_X86_64_RDI:
+ return &mcontext->gregs[REG_RDI];
+ case UNW_X86_64_RBP:
+ return &mcontext->gregs[REG_RBP];
+ case UNW_X86_64_RSP:
+ return &mcontext->gregs[REG_RSP];
+ case UNW_X86_64_R8:
+ return &mcontext->gregs[REG_R8];
+ case UNW_X86_64_R9:
+ return &mcontext->gregs[REG_R9];
+ case UNW_X86_64_R10:
+ return &mcontext->gregs[REG_R10];
+ case UNW_X86_64_R11:
+ return &mcontext->gregs[REG_R11];
+ case UNW_X86_64_R12:
+ return &mcontext->gregs[REG_R12];
+ case UNW_X86_64_R13:
+ return &mcontext->gregs[REG_R13];
+ case UNW_X86_64_R14:
+ return &mcontext->gregs[REG_R14];
+ case UNW_X86_64_R15:
+ return &mcontext->gregs[REG_R15];
+ case UNW_X86_64_RIP:
+ return &mcontext->gregs[REG_RIP];
+#elif defined __FreeBSD__
+ case UNW_X86_64_RAX:
+ return &mcontext->mc_rax;
+ case UNW_X86_64_RDX:
+ return &mcontext->mc_rdx;
+ case UNW_X86_64_RCX:
+ return &mcontext->mc_rcx;
+ case UNW_X86_64_RBX:
+ return &mcontext->mc_rbx;
+ case UNW_X86_64_RSI:
+ return &mcontext->mc_rsi;
+ case UNW_X86_64_RDI:
+ return &mcontext->mc_rdi;
+ case UNW_X86_64_RBP:
+ return &mcontext->mc_rbp;
+ case UNW_X86_64_RSP:
+ return &mcontext->mc_rsp;
+ case UNW_X86_64_R8:
+ return &mcontext->mc_r8;
+ case UNW_X86_64_R9:
+ return &mcontext->mc_r9;
+ case UNW_X86_64_R10:
+ return &mcontext->mc_r10;
+ case UNW_X86_64_R11:
+ return &mcontext->mc_r11;
+ case UNW_X86_64_R12:
+ return &mcontext->mc_r12;
+ case UNW_X86_64_R13:
+ return &mcontext->mc_r13;
+ case UNW_X86_64_R14:
+ return &mcontext->mc_r14;
+ case UNW_X86_64_R15:
+ return &mcontext->mc_r15;
+ case UNW_X86_64_RIP:
+ return &mcontext->mc_rip;
+#else
+#error "Unable to get register from ucontext, please add your case"
+#endif
+ default:
+ return nullptr;
}
#else
return nullptr;
int UnwindContext::access_reg(unw_addr_space_t /*as*/, unw_regnum_t regnum, unw_word_t* valp, int write,
void* arg) noexcept
{
- simgrid::mc::UnwindContext* as_context = (simgrid::mc::UnwindContext*) arg;
- unw_context_t* context = &as_context->unwindContext_;
+ simgrid::mc::UnwindContext* as_context = (simgrid::mc::UnwindContext*)arg;
+ unw_context_t* context = &as_context->unwindContext_;
if (write)
return -UNW_EREADONLYREG;
- greg_t* preg = (greg_t*) get_reg(context, regnum);
+ greg_t* preg = (greg_t*)get_reg(context, regnum);
if (not preg)
return -UNW_EBADREG;
*valp = *preg;
int UnwindContext::get_proc_name(unw_addr_space_t /*as*/, unw_word_t addr, char* bufp, size_t buf_len, unw_word_t* offp,
void* arg) noexcept
{
- simgrid::mc::UnwindContext* context = (simgrid::mc::UnwindContext*) arg;
- simgrid::mc::Frame* frame = context->process_->find_function(remote(addr));
+ simgrid::mc::UnwindContext* context = (simgrid::mc::UnwindContext*)arg;
+ simgrid::mc::Frame* frame = context->process_->find_function(remote(addr));
if (not frame)
- return - UNW_ENOINFO;
- *offp = (unw_word_t) frame->range.begin() - addr;
+ return -UNW_ENOINFO;
+ *offp = (unw_word_t)frame->range.begin() - addr;
strncpy(bufp, frame->name.c_str(), buf_len);
if (bufp[buf_len - 1]) {
*
* It works with the `simgrid::mc::UnwindContext` context.
*/
-unw_accessors_t UnwindContext::accessors = {
- &find_proc_info,
- &put_unwind_info,
- &get_dyn_info_list_addr,
- &access_mem,
- &access_reg,
- &access_fpreg,
- &resume,
- &get_proc_name
-};
+unw_accessors_t UnwindContext::accessors = {&find_proc_info, &put_unwind_info, &get_dyn_info_list_addr,
+ &access_mem, &access_reg, &access_fpreg,
+ &resume, &get_proc_name};
unw_addr_space_t UnwindContext::createUnwindAddressSpace()
{
void UnwindContext::initialize(simgrid::mc::RemoteClient* process, unw_context_t* c)
{
this->addressSpace_ = process;
- this->process_ = process;
+ this->process_ = process;
// Take a copy of the context for our own purpose:
this->unwindContext_ = *c;
#if SIMGRID_PROCESSOR_x86_64 || SIMGRID_PROCESSOR_i686
-# ifdef __linux__
+#ifdef __linux__
// On x86_64, ucontext_t contains a pointer to itself for FP registers.
// We don't really need support for FR registers as they are caller saved
// and probably never use those fields as libunwind-x86_64 does not read
// FP registers from the unw_context_t
// Let's ignore this and see what happens:
this->unwindContext_.uc_mcontext.fpregs = nullptr;
-# endif
+#endif
#else
// Do we need to do any fixup like this?
-# error Target CPU type is not handled.
+#error Target CPU type is not handled.
#endif
}
unw_cursor_t UnwindContext::cursor()
{
unw_cursor_t cursor;
- if (process_ == nullptr
- || addressSpace_ == nullptr
- || unw_init_remote(&cursor, process_->unw_addr_space, this) != 0)
+ if (process_ == nullptr || addressSpace_ == nullptr || unw_init_remote(&cursor, process_->unw_addr_space, this) != 0)
xbt_die("UnwindContext not initialized");
return cursor;
}
-}
-}
+} // namespace mc
+} // namespace simgrid
