srn_dbg_sym.c File Reference

#include "serene/utils/srn_dbg_sym.h"
#include <dlfcn.h>
#include <string.h>

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Functions
const char *	srn_dbg_sym_name (void *addr, char *buf, size_t buflen)
	Resolve addr to a symbol name and write it into buf (null-terminated, at most buflen bytes including the terminator).

Function Documentation

srn_dbg_sym_name()

const char * srn_dbg_sym_name	(	void *	addr,
		char *	buf,
		size_t	buflen )

Resolve addr to a symbol name and write it into buf (null-terminated, at most buflen bytes including the terminator).

Returns buf on success, nullptr when resolution fails or buflen is zero.

Definition at line 26 of file srn_dbg_sym.c.

                                                                   {
  if (buflen == 0) {
    return nullptr;
  }
 
  Dl_info info;
  if (dladdr(addr, &info) && info.dli_sname != nullptr) {
    strncpy(buf, info.dli_sname, buflen - 1);
    buf[buflen - 1] = '\0';
    return buf;
  }
 
  return nullptr;
}

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