static int debuginfo__init_online_kernel_dwarf(struct debuginfo *self,
Dwarf_Addr addr __used)
{
const char *path = kernel_get_module_path("kernel");
if (!path) {
pr_err("Failed to find vmlinux path\n");
return -ENOENT;
}
pr_debug2("Use file %s for debuginfo\n", path);
return debuginfo__init_offline_dwarf(self, path);
}
/* With older elfutils, this just support kernel module... */
static Dwarf *dwfl_init_live_kernel_dwarf(Dwarf_Addr addr __used, Dwfl **dwflp,
Dwarf_Addr *bias)
{
int fd;
const char *path = kernel_get_module_path("kernel");
if (!path) {
pr_err("Failed to find vmlinux path\n");
return NULL;
}
pr_debug2("Use file %s for debuginfo\n", path);
fd = open(path, O_RDONLY);
if (fd < 0)
return NULL;
return dwfl_init_offline_dwarf(fd, dwflp, bias);
}
static int __linux_kernel_find_elf(Dwfl_Module *mod,
void **userdata,
const char *module_name,
Dwarf_Addr base,
char **file_name, Elf **elfp)
{
int fd;
const char *path = kernel_get_module_path(module_name);
pr_debug2("Use file %s for %s\n", path, module_name);
if (path) {
fd = open(path, O_RDONLY);
if (fd >= 0) {
*file_name = strdup(path);
return fd;
}
}
return dwfl_linux_kernel_find_elf(mod, userdata, module_name, base,
file_name, elfp);
}
