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/* License terms see GNU GENERAL PUBLIC LICENSE Version 3.
* Version 20100527.1
* Magnus Granberg (Zorry) <zorry@gentoo.org> */
#ifndef GCC_ESP_H
#define GCC_ESP_H
/* This file will add -fstack-protector-all, -fPIE, -pie and -z now
as default if the defines and the spec allow it.
Added a hack for gcc-specs-* in toolchain-funcs.eclass and _filter-hardened in flag-o-matic.eclass
to support older hardened GCC patches and we don't need to change the code on gcc-specs-* and _filter-hardened.
This will add some unsupported upstream commands options as -nopie and -nonow.
-D__KERNEL__ is added so we don't have -fPIE, -pie and -fstack-protector-all when building kernels.
ESP_CC1_SPEC is added to CC1_SPEC.
ESP_CC1_STRICT_OVERFLOW_SPEC is added so we don't disable the strict-overflow check.
ESP_LINK_PIE_CHECK_SPEC check for -pie, -p, -pg, -profile and -static.
ENABLE_CRTBEGINTS add support for crtbeginTS.o, build -static with -fPIE or -fpie.
*/
#ifdef ENABLE_ESP
/* Hack to support gcc-specs-* in toolchain-funcs.eclass and _filter-hardened in flag-o-matic.eclass */
#define ESP_CC1_SPEC " %(esp_cc1_ssp) %(esp_cc1_pie) %(esp_cc1_strict_overflow)"
#if defined ( EFAULT_SSP ) || defined ( EFAULT_PIE_SSP )
#define ESP_CC1_SSP_SPEC "%{!fno-stack-protector: %{!fno-stack-protector-all: }}"
#else
#define ESP_CC1_SSP_SPEC ""
#endif
#if defined ( EFAULT_PIE ) || defined ( EFAULT_PIE_SSP )
#define ESP_CC1_PIE_SPEC "%{!nopie: }"
#else
#define ESP_CC1_PIE_SPEC ""
#endif
#define ESP_CC1_STRICT_OVERFLOW_SPEC "%{!fstrict-overflow:%{!fno-strict-overflow: -fno-strict-overflow}}"
/* ESP_LINK_SPEC is added to LINK_PIE_SPEC if esp is enable
-z now will be added if we don't have -vanilla spec. We do a -pie incompatible check
Don't remove the specs in the end */
#define ESP_LINK_SPEC "%(esp_link_now) %(esp_link_pie_check) "
#define ESP_LINK_NOW_SPEC "%{!nonow:-z now}"
/* We use ESP_COMMAND_OPTIONS_SPEC to add pie command-line options. */
#define ESP_COMMAND_OPTIONS_SPEC "%{!D__KERNEL__:%{!nopie:%(esp_options_pie) %(esp_link_pie)}}"
/* ESP_OPTIONS_SPEC is added to the compiler spec in gcc/gcc.c */
#define ESP_OPTIONS_SPEC "%(esp_options_ssp)"
/* ESP_CPP_OPTIONS_SPEC is added to the cpp_options spec in gcc/gcc.c
For precompiling headers. */
#define ESP_CPP_OPTIONS_SPEC "%(esp_options_ssp)"
/* This will add -fstack-protector-all if we don't have -nostdlib -nodefaultlibs -fno-stack-protector -fstack-protector
-fstack-protector-all and we have EFAULT_SSP or EFAULT_PIE_SSP defined. */
#if defined ( EFAULT_SSP ) || defined ( EFAULT_PIE_SSP )
#define ESP_OPTIONS_SSP_SPEC \
"%{!D__KERNEL__:%{!nostdlib:%{!nodefaultlibs: %{!fno-stack-protector: \
%{!fstack-protector:%{!fstack-protector-all:-fstack-protector-all}}}}}}"
#else
#define ESP_OPTIONS_SSP_SPEC ""
#endif
/* If EFAULT_PIE or EFAULT_PIE_SSP is defined we will add -fPIE -pie */
#if defined ( EFAULT_PIE ) || defined ( EFAULT_PIE_SSP )
/* This will add -fPIE if we don't have -pie -fpic -fPIC -fpie -fPIE -fno-pic -fno-PIC -fno-pie -fno-PIE -shared -static
-nostdlib -nostartfiles. */
/* With ENABLE_CRTBEGINTS we don't need to check for -static */
#ifdef ENABLE_CRTBEGINTS
#define ESP_OPTIONS_PIE_SPEC \
"%{!pie: %{!fpic:%{!fPIC:%{!fpie:%{!fPIE: %{!fno-pic:%{!fno-PIC:%{!fno-pie:%{!fno-PIE: \
%{!shared: %{!nostdlib: %{!nostartfiles:-fPIE}} } }}}} }}}} }"
#else
#define ESP_OPTIONS_PIE_SPEC \
"%{!pie: %{!fpic:%{!fPIC:%{!fpie:%{!fPIE: %{!fno-pic:%{!fno-PIC:%{!fno-pie:%{!fno-PIE: \
%{!shared: %{!static: %{!nostdlib: %{!nostartfiles:-fPIE}} } }}}} }}}} }}"
#endif
/* This will add -pie if we don't have -pie -A -fno-pic -fno-PIC -fno-pie -fno-PIE -shared -static -r -nostdlib
-nostartfiles */
/* With ENABLE_CRTBEGINTS we don't need to check for -static
and we add -pie only to get the start and endfiles. -pie will not go to the linker. */
#ifdef ENABLE_CRTBEGINTS
#define ESP_LINK_PIE_SPEC \
"%{!pie:%{!A:%{!fno-pie:%{!fno-PIE:%{!fno-pic:%{!fno-PIC:%{!shared:%{!r: \
%{!nostdlib:%{!nostartfiles:-pie}}}}}}}}}}"
#else
#define ESP_LINK_PIE_SPEC \
"%{!pie:%{!A:%{!fno-pie:%{!fno-PIE:%{!fno-pic:%{!fno-PIC:%{!shared:%{!static:%{!r: \
%{!nostdlib:%{!nostartfiles:-pie}}}}}}}}}}}"
#endif
/* This will check if -pie is set when (-static) -pg -p -profile. If set it will make gcc print out
"-pie and (static)|pg|p|profile are incompatible when linking" */
/* With ENABLE_CRTBEGINTS we don't need to check for -static */
#ifdef ENABLE_CRTBEGINTS
#define ESP_LINK_PIE_CHECK_SPEC \
"%{pie:%{pg|p|profile:%e-pie and -pg|p|profile are incompatible when linking}}"
#else
#define ESP_LINK_PIE_CHECK_SPEC \
"%{pie:%{static|pg|p|profile:%e-pie and -static|pg|p|profile are incompatible when linking}}"
#endif
/* We don't pass -pie to the linker when -static. */
#ifdef ENABLE_CRTBEGINTS
#define LINK_PIE_SPEC "%{!static:%{pie:-pie}} %(esp_link)"
#else
#define LINK_PIE_SPEC "%{pie:-pie} %(esp_link)"
#endif
#else
#define ESP_OPTIONS_PIE_SPEC ""
#define ESP_LINK_PIE_CHECK_SPEC ""
#define ESP_LINK_PIE_SPEC ""
#define LINK_PIE_SPEC "%{pie:-pie} %(esp_link)"
#endif
/* We add extra spec name's to the EXTRA_SPECS list */
#define ESP_EXTRA_SPECS \
{ "esp_cc1", ESP_CC1_SPEC }, \
{ "esp_cc1_pie", ESP_CC1_PIE_SPEC }, \
{ "esp_cc1_ssp", ESP_CC1_SSP_SPEC }, \
{ "esp_cc1_strict_overflow", ESP_CC1_STRICT_OVERFLOW_SPEC }, \
{ "esp_link", ESP_LINK_SPEC }, \
{ "esp_link_now", ESP_LINK_NOW_SPEC }, \
{ "esp_link_pie", ESP_LINK_PIE_SPEC }, \
{ "esp_link_pie_check", ESP_LINK_PIE_CHECK_SPEC }, \
{ "esp_command_options", ESP_COMMAND_OPTIONS_SPEC }, \
{ "esp_cpp_options", ESP_CPP_OPTIONS_SPEC }, \
{ "esp_options", ESP_OPTIONS_SPEC }, \
{ "esp_options_pie", ESP_OPTIONS_PIE_SPEC }, \
{ "esp_options_ssp", ESP_OPTIONS_SSP_SPEC }
static const char *esp_command_options_spec = ESP_COMMAND_OPTIONS_SPEC;
static const char *cc1_spec = CC1_SPEC ESP_CC1_SPEC;
#else /* If not ESP_ENABLE defined do this. */
#define ESP_OPTIONS_SPEC ""
#define ESP_CPP_OPTIONS_SPEC ""
/* We add extra spec name's to the EXTRA_SPECS list */
#define ESP_EXTRA_SPECS \
{ "esp_options", ESP_OPTIONS_SPEC }, \
{ "esp_cpp_options", ESP_CPP_OPTIONS_SPEC }
#endif
#endif /* End GCC_ESP_H */
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