diff options
Diffstat (limited to 'gcc/config/rs6000/sysv4.h')
| -rw-r--r-- | gcc/config/rs6000/sysv4.h | 50 |
1 files changed, 35 insertions, 15 deletions
diff --git a/gcc/config/rs6000/sysv4.h b/gcc/config/rs6000/sysv4.h index 2b7e1ed4b48..e945e80d197 100644 --- a/gcc/config/rs6000/sysv4.h +++ b/gcc/config/rs6000/sysv4.h @@ -1,5 +1,5 @@ /* Target definitions for GNU compiler for PowerPC running System V.4 - Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc. + Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc. Contributed by Cygnus Support. This file is part of GNU CC. @@ -107,8 +107,8 @@ extern enum rs6000_sdata_type rs6000_sdata; #define RS6000_ABI_NAME "sysv" /* Strings provided by SUBTARGET_OPTIONS */ -extern char *rs6000_abi_name; -extern char *rs6000_sdata_name; +extern const char *rs6000_abi_name; +extern const char *rs6000_sdata_name; #define SUBTARGET_OPTIONS \ { "call-", &rs6000_abi_name}, \ @@ -393,12 +393,9 @@ do { \ /* Define this macro to be the value 1 if instructions will fail to work if given data not on the nominal alignment. If instructions - will merely go slower in that case, define this macro as 0. - - Note, little endian systems trap on unaligned addresses, so never - turn off strict alignment in that case. */ + will merely go slower in that case, define this macro as 0. */ #undef STRICT_ALIGNMENT -#define STRICT_ALIGNMENT (TARGET_STRICT_ALIGN || TARGET_LITTLE_ENDIAN) +#define STRICT_ALIGNMENT (TARGET_STRICT_ALIGN) /* Alignment in bits of the stack boundary. Note, in order to allow building one set of libraries with -mno-eabi instead of eabi libraries and non-eabi @@ -710,7 +707,7 @@ do { \ if (rs6000_sdata != SDATA_NONE && (SIZE) > 0 \ && (SIZE) <= g_switch_value) \ { \ - sdata_section (); \ + sbss_section (); \ ASM_OUTPUT_ALIGN (FILE, exact_log2 (ALIGN / BITS_PER_UNIT)); \ ASM_OUTPUT_LABEL (FILE, NAME); \ ASM_OUTPUT_SKIP (FILE, SIZE); \ @@ -975,16 +972,36 @@ do { \ %{memb} %{!memb: %{msdata: -memb} %{msdata=eabi: -memb}} \ %{mlittle} %{mlittle-endian} %{mbig} %{mbig-endian} \ %{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \ - %{mcall-solaris: -mlittle -msolaris} %{mcall-linux: -mbig} }}}}" + %{mcall-solaris: -mlittle -msolaris} \ + %{mcall-linux: -mbig} }}}}" + +#ifndef CC1_ENDIAN_BIG_SPEC +#define CC1_ENDIAN_BIG_SPEC "" +#endif + +#ifndef CC1_ENDIAN_LITTLE_SPEC +#define CC1_ENDIAN_LITTLE_SPEC "\ +%{!mstrict-align: %{!mno-strict-align: \ + -mstrict-align \ +}}" +#endif + +#ifndef CC1_ENDIAN_DEFAULT_SPEC +#define CC1_ENDIAN_DEFAULT_SPEC "%(cc1_endian_big_spec)" +#endif #undef CC1_SPEC /* Pass -G xxx to the compiler and set correct endian mode */ #define CC1_SPEC "%{G*} \ -%{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \ - %{mcall-nt: -mlittle } \ - %{mcall-aixdesc: -mbig } \ - %{mcall-solaris: -mlittle } \ - %{mcall-linux: -mbig} }}}} \ +%{mlittle: %(cc1_endian_little)} %{!mlittle: %{mlittle-endian: %(cc1_endian_little)}} \ +%{mbig: %(cc1_endian_big)} %{!mbig: %{mbig-endian: %(cc1_endian_big)}} \ + %{mcall-nt: -mlittle %{cc1_endian_little} } \ + %{mcall-aixdesc: -mbig %{cc1_endian_big} } \ + %{mcall-solaris: -mlittle %{cc1_endian_little} } \ + %{mcall-linux: -mbig %{cc1_endian_big} } \ + %{!mcall-nt: %{!mcall-aixdesc: %{!mcall-solaris: %{!mcall-linux: \ + %(cc1_endian_default) \ + }}}} \ %{mcall-solaris: -mregnames } \ %{mno-sdata: -msdata=none } \ %{meabi: %{!mcall-*: -mcall-sysv }} \ @@ -1419,6 +1436,9 @@ do { \ { "link_os_linux", LINK_OS_LINUX_SPEC }, \ { "link_os_solaris", LINK_OS_SOLARIS_SPEC }, \ { "link_os_default", LINK_OS_DEFAULT_SPEC }, \ + { "cc1_endian_big", CC1_ENDIAN_BIG_SPEC }, \ + { "cc1_endian_little", CC1_ENDIAN_LITTLE_SPEC }, \ + { "cc1_endian_default", CC1_ENDIAN_DEFAULT_SPEC }, \ { "cpp_endian_big", CPP_ENDIAN_BIG_SPEC }, \ { "cpp_endian_little", CPP_ENDIAN_LITTLE_SPEC }, \ { "cpp_endian_solaris", CPP_ENDIAN_SOLARIS_SPEC }, \ |