--- /dev/null
+2014-05-12 Magnus Granberg <zorry@gentoo.org>
+
+ * gcc/esp.h New file to support --enable-esp
+ Version 20140512.1
+
+--- gcc/config/esp.h 2010-04-09 16:14:00.000000000 +0200
++++ gcc/config/esp.h 2012-06-23 01:00:31.248348491 +0200
+@@ -0,0 +1,127 @@
++/* License terms see GNU GENERAL PUBLIC LICENSE Version 3.
++ * Version 20140512.1
++ * Magnus Granberg (Zorry) <zorry@gentoo.org> */
++#ifndef GCC_ESP_H
++#define GCC_ESP_H
++
++/* This file will add -fstack-protector-all, -fstack-check, -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 and -fstack-check 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_CRTBEGINP add support for crtbeginP.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: %{!fno-stack-check: }}}"
++ #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_DRIVER_SELF_SPEC to add pie and ssp command-line options. */
++ #define ESP_DRIVER_SELF_SPEC "%{D__KERNEL__:;:%{!nopie:%(esp_options_pie) \
++ %(esp_link_pie)} %(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 \
++ "%{nostdlib|ffreestanding|fno-stack-protector|fstack-protector| \
++ fstack-protector-all|fstack-protector-strong:;:-fstack-protector-all} \
++ %{fstack-check|fstack-check=*:;: -fstack-check}"
++ #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_CRTBEGINP we don't need to check for -static */
++ #ifdef ENABLE_CRTBEGINP
++ #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_CRTBEGINP 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_CRTBEGINP
++ #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_CRTBEGINP we don't need to check for -static */
++ #ifdef ENABLE_CRTBEGINP
++ #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_CRTBEGINP
++ #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_driver_self", ESP_DRIVER_SELF_SPEC }, \
++ { "esp_options_pie", ESP_OPTIONS_PIE_SPEC }, \
++ { "esp_options_ssp", ESP_OPTIONS_SSP_SPEC }
++
++ static const char *cc1_spec = CC1_SPEC ESP_CC1_SPEC;
++
++#endif
++#endif /* End GCC_ESP_H */
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