Segmentation fault on x86 Linux with SSE2 intrinsics

[andrey.zhdanoff@…]

Modified coroutine/example/echo.cpp by adding function which using SSE2 intrinsic . Program built for x86 is seg-faulting due to miss-aligned stack. Build with: g++ echosse.cpp -m32 -o echosse -O3 -g -I ../boost/boost_build/include/boost-1_53/ -Wl,libboost_context-gcc46-mt-s-1_53.a GCC version tested: 4.6.2, 4.8.0. Problem is in make_i386_sysv_elf_gas.S, line:

leal -0x8(%eax), %edx /* reserve space for the last frame on context stack; (ESP - 0x4) % 16 == 0 */

• apparently pasted from x64 version.

Changing to: leal -0x14(%eax), %edx fixed the problem for me.