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Annotation of gcc/config/i386isc.h, revision 1.1.1.2

1.1       root        1: /* Definitions for Intel 386 running Interactive Unix System V.
                      2:    Specifically, this is for recent versions that support POSIX;
                      3:    for version 2.0.2, use configuration option i386-sysv instead.  */
                      4: 
                      5: /* Mostly it's like AT&T Unix System V. */
                      6: 
                      7: #include "i386v.h"
                      8: 
1.1.1.2 ! root        9: /* Use crt1.o, not crt0.o, as a startup file, and crtn.o as a closing file. */
1.1       root       10: #undef STARTFILE_SPEC
                     11: #define STARTFILE_SPEC \
1.1.1.2 ! root       12:   "%{!shlib:%{posix:%{pg:mcrtp1.o%s}%{!pg:%{p:mcrtp1.o%s}%{!p:crtp1.o%s}}}\
        !            13:    %{!posix:%{pg:mcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}}\
1.1       root       14:    %{p:-L/lib/libp} %{pg:-L/lib/libp}}}\
1.1.1.2 ! root       15:    %{shlib:%{posix:crtp1.o%s}%{!posix:crt1.o%s}} crtbegin.o%s"
        !            16:   
        !            17: #define ENDFILE_SPEC "crtend.o%s crtn.o%s"
1.1       root       18: 
                     19: /* Library spec */
                     20: #undef LIB_SPEC
1.1.1.2 ! root       21: #define LIB_SPEC "%{posix:-lcposix} %{shlib:-lc_s} -lc -lg"
1.1       root       22: 
1.1.1.2 ! root       23: #if 0
        !            24: /* This is apparently not true: ISC versions up to 3.0,at least, use
        !            25:    the standard calling sequence in which the called function pops the
        !            26:    extra arg.  */
1.1       root       27: /* caller has to pop the extra argument passed to functions that return
                     28:    structures. */
                     29: 
                     30: #undef RETURN_POPS_ARGS
                     31: #define RETURN_POPS_ARGS(FUNTYPE,SIZE)   \
                     32:   (TREE_CODE (FUNTYPE) == IDENTIFIER_NODE ? 0                  \
                     33:    : (TARGET_RTD                                               \
                     34:       && (TYPE_ARG_TYPES (FUNTYPE) == 0                                \
                     35:          || (TREE_VALUE (tree_last (TYPE_ARG_TYPES (FUNTYPE))) \
                     36:              == void_type_node))) ? (SIZE)                     \
                     37:    : 0)
                     38: /* On other 386 systems, the last line looks like this:
                     39:    : (aggregate_value_p (FUNTYPE)) ? GET_MODE_SIZE (Pmode) : 0)  */
1.1.1.2 ! root       40: #endif

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