First part taken from Alpine. --- a/gcc/gcc.cc +++ b/gcc/gcc.cc @@ -984,10 +984,15 @@ proper position among the other output f #define LINK_GCC_C_SEQUENCE_SPEC "%G %{!nolibc:%L %G}" #endif +#ifdef ENABLE_DEFAULT_SSP +#define NO_SSP_SPEC "%{nostdlib|nodefaultlibs|ffreestanding:-fno-stack-protector} " +#else +#define NO_SSP_SPEC "" +#endif + #ifndef LINK_SSP_SPEC #ifdef TARGET_LIBC_PROVIDES_SSP -#define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \ - "|fstack-protector-strong|fstack-protector-explicit:}" +#define LINK_SSP_SPEC "-lssp_nonshared" #else #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \ "|fstack-protector-strong|fstack-protector-explicit" \ @@ -1280,7 +1285,7 @@ static const char *cc1_options = %{-version:--version}\ %{-help=*:--help=%*}\ %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %w%b.s}}}\ - %{fsyntax-only:-o %j} %{-param*}\ + %{fsyntax-only:-o %j} %{-param*} " NO_SSP_SPEC "\ %{coverage:-fprofile-arcs -ftest-coverage}\ %{fprofile-arcs|fprofile-generate*|coverage:\ %{!fprofile-update=single:\ --- a/gcc/params.opt +++ b/gcc/params.opt @@ -853,7 +853,7 @@ Common Joined UInteger Var(param_ssa_name_def_chain_limit) Init(512) Param Optim The maximum number of SSA_NAME assignments to follow in determining a value. -param=ssp-buffer-size= -Common Joined UInteger Var(param_ssp_buffer_size) Init(8) IntegerRange(1, 65536) Param Optimization +Common Joined UInteger Var(param_ssp_buffer_size) Init(4) IntegerRange(1, 65536) Param Optimization The lower bound for a buffer to be considered for stack smashing protection. -param=stack-clash-protection-guard-size=