/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
+#include <cerrno>
+#include <cstring>
#include <sstream>
#include <string>
#include <vector>
int size;
};
-static _Unwind_Reason_Code
-backtrace_helper (struct _Unwind_Context *ctx, void *a)
+static _Unwind_Reason_Code backtrace_helper(_Unwind_Context* ctx, void* a)
{
- struct trace_arg *arg = (struct trace_arg *) a;
+ trace_arg* arg = static_cast<trace_arg*>(a);
/* We are first called with address in the __backtrace function.
Skip it. */
int found = 0;
/* let's look for the offset of this library in our addressing space */
- std::string maps_name = std::string("/proc/") + std::to_string(getpid()) + "maps";
+ std::string maps_name = std::string("/proc/") + std::to_string(getpid()) + "/maps";
FILE* maps = fopen(maps_name.c_str(), "r");
-
+ if (maps == nullptr) {
+ XBT_CRITICAL("fopen(\"%s\") failed: %s", maps_name.c_str(), strerror(errno));
+ continue;
+ }
unsigned long int addr = strtoul(addrs[i].c_str(), &p, 16);
if (*p != '\0') {
XBT_CRITICAL("Cannot parse backtrace address '%s' (addr=%#lx)", addrs[i].c_str(), addr);
addrs[i].clear();
/* Mask the bottom of the stack */
- if (not strncmp("main", line_func, strlen("main")) ||
- not strncmp("xbt_thread_context_wrapper", line_func, strlen("xbt_thread_context_wrapper")) ||
- not strncmp("smx_ctx_sysv_wrapper", line_func, strlen("smx_ctx_sysv_wrapper")))
+ const char* const breakers[] = {
+ "main",
+ "_ZN7simgrid6kernel7context13ThreadContext7wrapperE", // simgrid::kernel::context::ThreadContext::wrapper
+ "_ZN7simgrid6kernel7context8UContext7wrapperE" // simgrid::kernel::context::UContext::wrapper
+ };
+ bool do_break = false;
+ for (const char* b : breakers) {
+ if (strncmp(b, line_func, strlen(b)) == 0) {
+ do_break = true;
+ break;
+ }
+ }
+ if (do_break)
break;
}
pclose(pipe);