Use gdb to debug a segmentation fault

[admin]

Compile the source with -g -O0 so that you can use gdb.
Using a makefile, it's something like:

Code: Select all

# enalbe GDB on for debugging
GDB = -g -O0
all: spaceshuttle.c
   gcc $(GDB) -Wall -o spaceshuttle.exe functions.c encryptionlib.c -lspacelib -lpthread
clean:
   $(RM) spaceshuttle.exe

Next, use gdb to get a stack trace:

bash$ gdb spaceshuttle.exe
gdb> run arguments
(cc1 will stop at the segmentation fault)
gdb> where
gdb> list