I've found that in elftoolchain 0.7.1, the libdwarf function
dwarf_get_fde_list_eh() exits with an error when an object has a CIE
with 'S'-augmentation in its .eh_frame section:
Augmentation: zRS
The augmentation has something to do with signal frames.
I've worked around this by slightly patching libdwarf_frame.c:
--- a/external/bsd/elftoolchain/libdwarf/libdwarf_frame.c
+++ b/external/bsd/elftoolchain/libdwarf/libdwarf_frame.c
@@ -143,6 +143,7 @@ _dwarf_frame_parse_lsb_cie_augment(Dwarf_Debug dbg,
Dwarf_Cie cie,
while (*aug_p != '\0') {
switch (*aug_p) {
case 'L':
+ case 'S':
/* Skip one augment in augment data. */
augdata_p++;
break;
Without the patch, an 'S'-augmentation makes
_dwarf_frame_parse_lsb_cie_augment() exit with an error at the switch's
default case.
Dave
--
David Young
[email protected] Urbana, IL (217) 721-9981
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