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A travel through exploit
mitigations in GNU toolchains
樊付强
腾御安基础信息安全咨询
#ls -l
00 whoami
01 GCC/ld/Glibcdlinternals
0100 GCC internals
0101 ld internals
0102 Glibcdl internals
02 smashing the stack
03 implementation of classical mitigations
0300 stack canary
0301 NX(NoeXecutable)
0302 PIC/PIE ASLR
0303 relro
04 returnoriented programming
05 CFI implementation in GCC
06 intro to RAP of PaX/Grsecurity
[00] whoami
coder whole my life
worked on SDCC/gputils, GCC/binutils, LLVM
security engineer
member of hardenedlinux/h4rdenedzer0
write a C89 compiler from scratch only for
fun(20092012)
[01] GCC/ld/Glibc
dynamic-linker internals
0100 GCC internals
0101 ld internals
0102 Glibcdl internals
[0100] GCC internals/source directory overview
zet@fuck-GFW ~/dust/gcc/gcc-6.2.0 $ls -lF
ABOUT-NL /* gettext*/
boehm-gc/ /* java gc*/
compile* /* script call gcc by user*/
config/ /* lots of m4 script*/
config.guess*
config-ml.in
config.rpath*
config.sub*
configure*
configure.ac
contrib/ /* download prerequest/generate man pages*/
depcomp* /* call compiler generate dependency*/
fixincludes/ /* fix(macro) system header to work with gcc*/
gnattools/ /* Ada*/
gotools/ /* golang*/
include/ /* getopt.h, sha1.h, etc*/
INSTALL/ /* html install files*/
[0100] GCC internals/source directory overview
zet@fuck-GFW ~/dust/gcc/gcc-6.2.0 $ls -lF
install-sh* /* called by make install*/
intl/ /* gettext*/
libada/
libatomic/ /* __sync/__atomic*/
libbacktrace/ /* output like gdb backtrace*/
libcc1/ /* gdb evalute code on current context*/
libcilkrts/ /* intel ci
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