Q: How can I narrow down this gdb
backtrace to a specific character, or set of characters, that is causing a Emacs to suffer a segmentation fault when using prin1
?
Program received signal SIGSEGV, Segmentation fault.
0x0000000100141da7 in print_object (obj=4790542093, printcharfun=0,
escapeflag=true) at print.c:1350
1350 {
(gdb) bt full
#0 0x0000000100141da7 in print_object (obj=4790542093, printcharfun=0,
escapeflag=true) at print.c:1350
buf = "\000\000\000\000\000\000\000\000\070\346\211\035\001", '\000' <repeats 11 times>, "\303o\024\034\001\000\000\000\350\345\211\035\001", '\000' <repeats 11 times>, "\320\360:_\377\177"
#1 0x000000010014261f in print_object (obj=4766068675, printcharfun=0,
escapeflag=true) at print.c:1659
halftail = 4766068675
print_length = 9223372036854775807
i = 1
buf = "\000\000\000\000\000\000\000\000\070\346\211\035\001", '\000' <repeats 11 times>, "\265މ\035\001\000\000\000\350\345\211\035\001", '\000' <repeats 11 times>, "`\363:_\377\177"
#2 0x0000000100143a77 in print_object (obj=<optimized out>, printcharfun=0,
escapeflag=true) at print.c:1965
idx = 0
tem = 4790542093
size = 10
buf = "\000\000\000\000\000\000\000\000\070\346\211\035\001", '\000' <repeats 11 times>, "\243#\n\034\001\000\000\000\350\345\211\035\001", '\000' <repeats 11 times>, "\360\365:_\377\177"
#3 0x000000010014261f in print_object (obj=4765393827, printcharfun=0,
escapeflag=true) at print.c:1659
---Type <return> to continue, or q <return> to quit---
p obj
and thenxpr
should show you what's being printed. – npostavs Jul 2 '17 at 17:03