% `perf`, `gdb`, and x86 tricks and reference materials
% Michael Stone
% October 8, 2012

+--------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|     $ perf record -g                       | [http://lwn.net/Articles/340010/](http://lwn.net/Articles/340010/)                                                                                                               |
|     $ perf annotate                        |                                                                                                                                                                                  |
+--------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|     (gdb) layout asm                       | [gdb: "layout asm"](http://stackoverflow.com/questions/589653/switching-to-assembly-in-gdb)                                                                                      |
|                                            | [SO: Show current instruction in gdb](http://stackoverflow.com/questions/1902901/show-current-instruction-in-gdb)                                                                |
+--------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|     (gdb) x/w $1234                        | [gdb: "Examining memory"](http://sources.redhat.com/gdb/current/onlinedocs/gdb.html#Memory)                                                                                      |
+--------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|     (gdb) break *fun*                      | [gdb: "Break Commands"](http://sources.redhat.com/gdb/current/onlinedocs/gdb.html#Break-Commands)                                                                                |
|     commands                               |                                                                                                                                                                                  |
|     info registers                         |                                                                                                                                                                                  |
|     end                                    |                                                                                                                                                                                  |
+--------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|     (gdb) run < input                      | [gdb: "Your Program's Input and Output"](http://sources.redhat.com/gdb/current/onlinedocs/gdb.html#Input_002fOutput)                                                             |
+--------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|     (gdb) set {int} ($esp + 0x4) = 10      | [gdb: "Altering Execution"](http://sources.redhat.com/gdb/current/onlinedocs/gdb.html#Altering)                                                                                  |
|     (gdb) set $pc = 0x485                  |                                                                                                                                                                                  |
|     (gdb) jump *0xabcdefgh                 |                                                                                                                                                                                  |
+--------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|     (gdb) generate-core-file               | [Generating core files from gdb](http://prefetch.net/blog/index.php/2006/12/21/generating-core-files-from-gdb/)                                                                  |
+--------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|     gdb manual                             | [Red Hat](http://sources.redhat.com/gdb/current/onlinedocs/gdb.html)                                                                                                             |
+--------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|     gdb cheat sheets                       | [Daniel Spiegel](http://faculty.kutztown.edu/spiegel/Debugging/DebugPrimer.htm)                                                                                                  |
|                                            |                                                                                                                                                                                  |
|                                            | [Jim Binkley](http://web.cecs.pdx.edu/~jrb/cs201/lectures/handouts/gdbcomm.txt)                                                                                                  |
+--------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|     IA-{32,64} references                  | [Intel IA-32 and IA-64 Instruction Set Architecture Reference Materials](http://www.intel.com/content/www/us/en/processors/architectures-software-developer-manuals.html)        |
+--------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|     calling conventions                    | [x86 Calling Conventions](http://en.wikipedia.org/wiki/X86_calling_conventions)                                                                                                  |
+--------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
|     AT&T vs. Intel syntax                  | [symset](http://simon.baymoo.org/universe/tools/symset/symset.txt)                                                                                                               |
+--------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+