From: Cliff Wickman <cpw@xxxxxxx>
If the vmlinux does not have dwarf information makedumpfile fails in
a rather obscure way, with a flood of redundant errors,
Make it fail with more of a hint of what is wrong.
Signed-off-by: Cliff Wickman <cpw at sgi.com>
---
dwarf_info.c | 4 ++++
1 file changed, 4 insertions(+)
Index: makedumpfile.mmap/dwarf_info.c
===================================================================
--- makedumpfile.mmap.orig/dwarf_info.c
+++ makedumpfile.mmap/dwarf_info.c
@@ -139,6 +139,10 @@ process_module (Dwfl_Module *dwflmod,
/* get a debug context descriptor.*/
dwarf_info.dwarfd = dwfl_module_getdwarf (dwflmod, &dwbias);
+ if (dwarf_info.dwarfd == NULL) {
+ fprintf(stderr, "makedumpfile: dwfl_module_getdwarf error\n");
+ exit(1);
+ }
dwarf_info.elfd = dwarf_getelf(dwarf_info.dwarfd);
mod_name = dwfl_module_info(dwflmod, NULL, NULL, NULL, NULL, NULL,
