diff options
Diffstat (limited to 'gcc/config/arm/vxworks.h')
| -rw-r--r-- | gcc/config/arm/vxworks.h | 81 |
1 files changed, 62 insertions, 19 deletions
diff --git a/gcc/config/arm/vxworks.h b/gcc/config/arm/vxworks.h index f20324f144d..59f6282a0ea 100644 --- a/gcc/config/arm/vxworks.h +++ b/gcc/config/arm/vxworks.h @@ -26,7 +26,15 @@ a copy of the GCC Runtime Library Exception along with this program; see the files COPYING3 and COPYING.RUNTIME respectively. If not, see <http://www.gnu.org/licenses/>. */ +/* TARGET_OS_CPP_BUILTINS, down to BPABI if defined. */ +#if defined (TARGET_BPABI_CPP_BUILTINS) +#define MAYBE_TARGET_BPABI_CPP_BUILTINS TARGET_BPABI_CPP_BUILTINS +#else +#define MAYBE_TARGET_BPABI_CPP_BUILTINS() +#endif + +#undef TARGET_OS_CPP_BUILTINS #define TARGET_OS_CPP_BUILTINS() \ do { \ if (TARGET_BIG_END) \ @@ -36,8 +44,29 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see \ if (arm_arch_xscale) \ builtin_define ("CPU=XSCALE"); \ + else if (arm_arch7) \ + { \ + if (!arm_arch_notm) \ + builtin_define ("CPU=ARMARCH7M"); \ + else if (TARGET_THUMB) \ + builtin_define ("CPU=ARMARCH7_T2"); \ + else \ + builtin_define ("CPU=ARMARCH7"); \ + } \ + else if (arm_arch6) \ + { \ + if (TARGET_THUMB) \ + builtin_define ("CPU=ARMARCH6_T"); \ + else \ + builtin_define ("CPU=ARMARCH6"); \ + } \ else if (arm_arch5) \ - builtin_define ("CPU=ARMARCH5"); \ + { \ + if (TARGET_THUMB) \ + builtin_define ("CPU=ARMARCH5_T"); \ + else \ + builtin_define ("CPU=ARMARCH5"); \ + } \ else if (arm_arch4) \ { \ if (TARGET_THUMB) \ @@ -46,6 +75,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see builtin_define ("CPU=ARMARCH4"); \ } \ VXWORKS_OS_CPP_BUILTINS (); \ + MAYBE_TARGET_BPABI_CPP_BUILTINS (); \ } while (0) #undef SUBTARGET_OVERRIDE_OPTIONS @@ -55,27 +85,32 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see #undef SUBTARGET_CPP_SPEC #define SUBTARGET_CPP_SPEC "-D__ELF__" VXWORKS_ADDITIONAL_CPP_SPEC +/* .text.hot and .text.unlikely sections are badly handled by the + VxWorks kernel mode loader for ARM style exceptions. */ + +#if ARM_UNWIND_INFO +#define EXTRA_CC1_SPEC "%{!mrtp:-fno-reorder-functions}" +#else +#define EXTRA_CC1_SPEC +#endif + #undef CC1_SPEC -#define CC1_SPEC \ -"%{tstrongarm:-mlittle-endian -mcpu=strongarm ; \ - t4: -mlittle-endian -march=armv4 ; \ - t4be: -mbig-endian -march=armv4 ; \ - t4t: -mthumb -mthumb-interwork -mlittle-endian -march=armv4t ; \ - t4tbe: -mthumb -mthumb-interwork -mbig-endian -march=armv4t ; \ - t5: -mlittle-endian -march=armv5 ; \ - t5be: -mbig-endian -march=armv5 ; \ - t5t: -mthumb -mthumb-interwork -mlittle-endian -march=armv5 ; \ - t5tbe: -mthumb -mthumb-interwork -mbig-endian -march=armv5 ; \ - txscale: -mlittle-endian -mcpu=xscale ; \ - txscalebe: -mbig-endian -mcpu=xscale ; \ - : -march=armv4}" - -/* Pass -EB for big-endian targets. */ -#define VXWORKS_ENDIAN_SPEC \ - "%{mbig-endian|t4be|t4tbe|t5be|t5tbe|txscalebe:-EB}" +#define CC1_SPEC "" EXTRA_CC1_SPEC + +/* Translate an explicit -mbig-endian as an explicit -EB to assembler + and linker, and pass abi options matching the target expectations + or command-line requests. */ +#define VXWORKS_ENDIAN_SPEC "%{mbig-endian:-EB}" + +#if defined (TARGET_BPABI_CPP_BUILTINS) +#define MAYBE_ASM_ABI_SPEC \ + "%{mabi=apcs-gnu|mabi=atpcs:-meabi=gnu;:-meabi=5}" TARGET_FIX_V4BX_SPEC +#else +#define MAYBE_ASM_ABI_SPEC +#endif #undef SUBTARGET_EXTRA_ASM_SPEC -#define SUBTARGET_EXTRA_ASM_SPEC VXWORKS_ENDIAN_SPEC +#define SUBTARGET_EXTRA_ASM_SPEC MAYBE_ASM_ABI_SPEC " " VXWORKS_ENDIAN_SPEC #undef LINK_SPEC #define LINK_SPEC VXWORKS_LINK_SPEC " " VXWORKS_ENDIAN_SPEC @@ -89,6 +124,14 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see #undef ENDFILE_SPEC #define ENDFILE_SPEC VXWORKS_ENDFILE_SPEC +/* For exceptions, pre VX7 uses DWARF2 info, VX7 uses ARM unwinding. */ +#undef DWARF2_UNWIND_INFO +#define DWARF2_UNWIND_INFO (!TARGET_VXWORKS7) + +#undef ARM_TARGET2_DWARF_FORMAT +#define ARM_TARGET2_DWARF_FORMAT \ + (TARGET_VXWORKS_RTP ? DW_EH_PE_pcrel : DW_EH_PE_absptr) + /* There is no default multilib. */ #undef MULTILIB_DEFAULTS |