Remove our custom mixed ELF/a.out support. This means the base compiler
now only produce ELF objects. It also makes us closer to stock GCC, and simplifies the set of changes we still need from stock GCC on every import. Applauded by: peter Approved by: re
This commit is contained in:
parent
00acb1337e
commit
f685377c2e
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=107286
@ -91,8 +91,6 @@ Boston, MA 02111-1307, USA. */
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#define TARGET_VERSION fprintf (stderr, " (FreeBSD/Alpha ELF)");
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#define TARGET_ELF 1
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#define TARGET_AOUT (0)
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#define TARGET_UNDERSCORES (0)
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#undef OBJECT_FORMAT_COFF
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#undef EXTENDED_COFF
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@ -85,7 +85,7 @@ Boston, MA 02111-1307, USA. */
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the final CPP_PREDEFINES value. */
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#define FBSD_CPP_PREDEFINES \
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"-D__FreeBSD__=5 -D__FreeBSD_cc_version=500004 -Dunix -D__KPRINTF_ATTRIBUTE__ -Asystem=unix -Asystem=bsd -Asystem=FreeBSD"
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"-D__FreeBSD__=5 -D__FreeBSD_cc_version=500005 -Dunix -D__ELF__ -D__KPRINTF_ATTRIBUTE__ -Asystem=unix -Asystem=bsd -Asystem=FreeBSD"
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#endif /* ! FREEBSD_NATIVE */
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@ -99,9 +99,6 @@ Boston, MA 02111-1307, USA. */
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#define FBSD_CPP_SPEC " \
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%(cpp_cpu) \
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%{!maout: -D__ELF__} \
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%{munderscores: -D__UNDERSCORES__} \
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%{maout: %{!mno-underscores: -D__UNDERSCORES__}} \
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%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} \
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%{!ansi:%{!std=c89:%{!std=iso9899.1990:%{!std=iso9899.199409:-D_LONGLONG}}}} \
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%{posix:-D_POSIX_SOURCE}"
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@ -1,9 +1,8 @@
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/* Definitions for Intel 386 running FreeBSD with either a.out or ELF format
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/* Definitions for Intel 386 running FreeBSD with ELF format
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Copyright (C) 1996, 2000, 2002 Free Software Foundation, Inc.
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Contributed by Eric Youngdale.
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Modified for stabs-in-ELF by H.J. Lu.
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Adapted from GNU/Linux version by John Polstra.
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Added support for generating "old a.out gas" on the fly by Peter Wemm.
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Continued development by David O'Brien <obrien@freebsd.org>
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This file is part of GNU CC.
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@ -28,10 +27,10 @@ Boston, MA 02111-1307, USA. */
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#undef CC1_SPEC
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#define CC1_SPEC "%(cc1_cpu) %{profile:-p} \
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%{gline:%{!g:%{!g0:%{!g1:%{!g2: -g1}}}}} \
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%{maout: %{!mno-underscores: %{!munderscores: -munderscores }}}"
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"
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#undef ASM_SPEC
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#define ASM_SPEC "%{v*: -v} %{maout: %{fpic:-k} %{fPIC:-k}}"
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#define ASM_SPEC "%{v*: -v}"
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#undef ASM_FINAL_SPEC
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#define ASM_FINAL_SPEC "%|"
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@ -50,11 +49,6 @@ Boston, MA 02111-1307, USA. */
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#undef LINK_SPEC
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#define LINK_SPEC "\
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%{p:%e`-p' not supported; use `-pg' and gprof(1)} \
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%{maout: %{shared:-Bshareable} \
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%{!shared:%{!nostdlib:%{!r:%{!e*:-e start}}} -dc -dp %{static:-Bstatic} \
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%{pg:-Bstatic} %{Z}} \
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%{assert*} %{R*}} \
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%{!maout: \
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%{Wl,*:%*} \
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%{v:-V} \
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%{assert*} %{R*} %{rpath*} %{defsym*} \
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@ -64,7 +58,7 @@ Boston, MA 02111-1307, USA. */
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%{rdynamic: -export-dynamic} \
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%{!dynamic-linker: -dynamic-linker /usr/libexec/ld-elf.so.1}} \
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%{static:-Bstatic}} \
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%{symbolic:-Bsymbolic}}"
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%{symbolic:-Bsymbolic}"
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/* Provide a STARTFILE_SPEC appropriate for FreeBSD. Here we add the magical
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crtbegin.o file (see crtstuff.c) which provides part of the support for
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@ -72,12 +66,6 @@ Boston, MA 02111-1307, USA. */
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC "\
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%{maout: %{shared:c++rt0.o%s} \
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%{!shared: \
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%{pg:gcrt0.o%s}%{!pg: \
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%{static:scrt0.o%s} \
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%{!static:crt0.o%s}}}} \
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%{!maout: \
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%{!shared: \
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%{pg:gcrt1.o%s} \
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%{!pg: \
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@ -85,7 +73,7 @@ Boston, MA 02111-1307, USA. */
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%{!p:crt1.o%s}}} \
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crti.o%s \
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%{!shared:crtbegin.o%s} \
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%{shared:crtbeginS.o%s}}"
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%{shared:crtbeginS.o%s}"
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/* Provide an ENDFILE_SPEC appropriate for FreeBSD/i386. Here we tack on our
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own magical crtend.o file (see crtstuff.c) which provides part of the
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@ -94,9 +82,8 @@ Boston, MA 02111-1307, USA. */
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#undef ENDFILE_SPEC
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#define ENDFILE_SPEC "\
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%{!maout: \
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%{!shared:crtend.o%s} \
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%{shared:crtendS.o%s} crtn.o%s}"
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%{shared:crtendS.o%s} crtn.o%s"
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/************************[ Target stuff ]***********************************/
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@ -118,22 +105,14 @@ Boston, MA 02111-1307, USA. */
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#define TARGET_VERSION fprintf (stderr, " (i386 FreeBSD/ELF)");
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#define MASK_PROFILER_EPILOGUE 010000000000
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#define MASK_AOUT 004000000000 /* a.out not elf */
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#define MASK_UNDERSCORES 002000000000 /* use leading _ */
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#define TARGET_PROFILER_EPILOGUE (target_flags & MASK_PROFILER_EPILOGUE)
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#define TARGET_AOUT (target_flags & MASK_AOUT)
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#define TARGET_ELF ((target_flags & MASK_AOUT) == 0)
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#define TARGET_UNDERSCORES ((target_flags & MASK_UNDERSCORES) != 0)
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#define TARGET_ELF 1
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#undef SUBTARGET_SWITCHES
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#define SUBTARGET_SWITCHES \
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{ "profiler-epilogue", MASK_PROFILER_EPILOGUE, "Function profiler epilogue"}, \
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{ "no-profiler-epilogue", -MASK_PROFILER_EPILOGUE, "No function profiler epilogue"}, \
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{ "aout", MASK_AOUT, "Generate an a.out (vs. ELF) binary"}, \
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{ "no-aout", -MASK_AOUT, "Do not generate an a.out binary"}, \
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{ "underscores", MASK_UNDERSCORES, "Add leading underscores to symbols"}, \
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{ "no-underscores", -MASK_UNDERSCORES, "Do not add leading underscores to symbols"},
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{ "no-profiler-epilogue", -MASK_PROFILER_EPILOGUE, "No function profiler epilogue"},
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/* This goes away when the math emulator is fixed. */
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#undef TARGET_SUBTARGET_DEFAULT
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@ -148,27 +127,6 @@ Boston, MA 02111-1307, USA. */
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#undef DEFAULT_PCC_STRUCT_RETURN
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#define DEFAULT_PCC_STRUCT_RETURN 0
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/* The a.out tools do not support "linkonce" sections. */
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#undef SUPPORTS_ONE_ONLY
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#define SUPPORTS_ONE_ONLY TARGET_ELF
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/* Prefix for internally generated assembler labels. If we aren't using
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underscores, we are using prefix `.'s to identify labels that should
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be ignored, as in `i386/gas.h' --karl@cs.umb.edu */
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#undef LPREFIX
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#define LPREFIX ((TARGET_UNDERSCORES) ? "L" : ".L")
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/* supply our own hook for calling __main() from main() */
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#undef INVOKE__main
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#define INVOKE__main
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#undef GEN_CALL__MAIN
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#define GEN_CALL__MAIN \
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do { \
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if (!(TARGET_ELF)) \
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emit_library_call (gen_rtx (SYMBOL_REF, Pmode, NAME__MAIN), 0, \
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VOIDmode, 0); \
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} while (0)
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/* Tell final.c that we don't need a label passed to mcount. */
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#define NO_PROFILE_COUNTERS 1
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@ -178,11 +136,10 @@ Boston, MA 02111-1307, USA. */
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#undef FUNCTION_PROFILER
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#define FUNCTION_PROFILER(FILE, LABELNO) \
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do { \
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char *_name = TARGET_AOUT ? "mcount" : ".mcount"; \
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if (flag_pic) \
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fprintf ((FILE), "\tcall *%s@GOT(%%ebx)\n", _name); \
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fprintf ((FILE), "\tcall *.mcount%s@GOT(%%ebx)\n"); \
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else \
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fprintf ((FILE), "\tcall %s\n", _name); \
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fprintf ((FILE), "\tcall .mcount\n"); \
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} while (0)
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/* Output assembler code to FILE to end profiling of the current function. */
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@ -202,35 +159,7 @@ Boston, MA 02111-1307, USA. */
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#undef ASM_APP_OFF
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#define ASM_APP_OFF "#NO_APP\n"
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/* Override the default string pseudo-op of "\t.string\t" from ../elfos.h.
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".string" doesn't work for the aout case. */
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#undef STRING_ASM_OP
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#define STRING_ASM_OP (TARGET_AOUT ? "\t.asciz\t" : "\t.string\t")
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/* Override the use of "\t.section\t.rodata" from ../elfos.h. Neither
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".section" nor "rodata" works for the aout case. This forces a fallback
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to ".text". */
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#undef USE_CONST_SECTION
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#define USE_CONST_SECTION TARGET_ELF
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/* This is how to store into the string BUF
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the symbol_ref name of an internal numbered label where
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PREFIX is the class of label and NUM is the number within the class.
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This is suitable for output with `assemble_name'. */
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#undef ASM_GENERATE_INTERNAL_LABEL
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#define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM) \
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sprintf ((LABEL), "*%s%s%u", (TARGET_UNDERSCORES) ? "" : ".", \
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(PREFIX), (unsigned) (NUM))
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/* This is how to output an internal numbered label where
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PREFIX is the class of label and NUM is the number within the class.
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For most svr4/ELF systems, the convention is that any symbol which begins
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with a period is not put into the linker symbol table by the assembler. */
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#undef ASM_OUTPUT_INTERNAL_LABEL
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#define ASM_OUTPUT_INTERNAL_LABEL(FILE, PREFIX, NUM) \
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fprintf ((FILE), "%s%s%u:\n", (TARGET_UNDERSCORES) ? "" : ".", \
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(PREFIX), (unsigned) (NUM))
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/* XXX:DEO do we still need this override to defaults.h ?? */
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/* This is how to output a reference to a user-level label named NAME. */
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#undef ASM_OUTPUT_LABELREF
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#define ASM_OUTPUT_LABELREF(FILE, NAME) \
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@ -240,15 +169,13 @@ Boston, MA 02111-1307, USA. */
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FUNCTION_PROFILER_EPILOGUE (). */ \
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if (*_name == '.' && strcmp(_name + 1, "mexitcount") == 0) \
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{ \
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if (TARGET_AOUT) \
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_name++; \
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if (flag_pic) \
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fprintf ((FILE), "*%s@GOT(%%ebx)", _name); \
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else \
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fprintf ((FILE), "%s", _name); \
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} \
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else \
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fprintf (FILE, "%s%s", TARGET_UNDERSCORES ? "_" : "", _name); \
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fprintf (FILE, "%s", _name); \
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} while (0)
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/* This is how to hack on the symbol code of certain relcalcitrant
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@ -267,89 +194,6 @@ Boston, MA 02111-1307, USA. */
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} \
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} while (0)
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#undef ASM_OUTPUT_ALIGNED_COMMON
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#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \
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do { \
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if (TARGET_ELF) \
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{ \
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fprintf ((FILE), "%s", COMMON_ASM_OP); \
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assemble_name ((FILE), (NAME)); \
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fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \
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} \
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else \
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{ \
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int alignbytes = ((ALIGN) + BITS_PER_UNIT - 1) / BITS_PER_UNIT; \
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int rounded = (SIZE); \
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rounded += alignbytes - 1; \
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rounded = (rounded / alignbytes) * alignbytes; \
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fprintf ((FILE), "%s ", COMMON_ASM_OP); \
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assemble_name ((FILE), (NAME)); \
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fprintf ((FILE), ",%u\n", (rounded)); \
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} \
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} while (0)
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/* This says how to output assembler code to declare an
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uninitialized internal linkage data object. Under SVR4,
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the linker seems to want the alignment of data objects
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to depend on their types. We do exactly that here. */
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#undef ASM_OUTPUT_ALIGNED_LOCAL
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#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
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do { \
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if (TARGET_ELF) \
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{ \
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fprintf ((FILE), "%s", LOCAL_ASM_OP); \
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assemble_name ((FILE), (NAME)); \
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fprintf ((FILE), "\n"); \
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ASM_OUTPUT_ALIGNED_COMMON ((FILE), (NAME), (SIZE), (ALIGN)); \
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} \
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else \
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{ \
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int rounded = (SIZE); \
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if (rounded == 0) rounded = 1; \
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rounded += (BIGGEST_ALIGNMENT / BITS_PER_UNIT) - 1; \
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rounded = (rounded / (BIGGEST_ALIGNMENT / BITS_PER_UNIT) \
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* (BIGGEST_ALIGNMENT / BITS_PER_UNIT)); \
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fputs ("\t.lcomm\t", (FILE)); \
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assemble_name ((FILE), (NAME)); \
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fprintf ((FILE), ",%u\n", (rounded)); \
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} \
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} while (0)
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/* How to output some space. The rules are different depending on the
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object format. */
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#undef ASM_OUTPUT_SKIP
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#define ASM_OUTPUT_SKIP(FILE, SIZE) \
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do { \
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if (TARGET_ELF) \
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{ \
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fprintf ((FILE), "%s%u\n", SKIP_ASM_OP, (SIZE)); \
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} \
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else \
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{ \
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fprintf ((FILE), "\t.space\t%u\n", (SIZE)); \
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} \
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} while (0)
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#undef ASM_OUTPUT_SOURCE_LINE
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#define ASM_OUTPUT_SOURCE_LINE(FILE, LINE) \
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do { \
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static int sym_lineno = 1; \
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if (TARGET_ELF) \
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{ \
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fprintf ((FILE), ".stabn 68,0,%d,.LM%d-", (LINE), sym_lineno); \
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assemble_name ((FILE), \
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XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \
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fprintf ((FILE), "\n.LM%d:\n", sym_lineno); \
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sym_lineno += 1; \
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} \
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else \
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{ \
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fprintf ((FILE), "\t%s %d,0,%d\n", ASM_STABD_OP, N_SLINE, \
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lineno); \
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} \
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} while (0)
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/* A C statement to output to the stdio stream FILE an assembler
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command to advance the location counter to a multiple of 1<<LOG
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bytes if it is within MAX_SKIP bytes.
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@ -363,9 +207,7 @@ Boston, MA 02111-1307, USA. */
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#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE, LOG, MAX_SKIP) \
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do { \
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if ((LOG) != 0) { \
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if (TARGET_AOUT) \
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ASM_OUTPUT_ALIGN ((FILE), (LOG)); \
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else if ((MAX_SKIP) == 0) \
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if ((MAX_SKIP) == 0) \
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fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
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else \
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fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
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@ -376,10 +218,6 @@ Boston, MA 02111-1307, USA. */
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/************************[ Debugger stuff ]*********************************/
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/* The a.out tools do not support "Lscope" .stabs symbols. */
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#undef NO_DBX_FUNCTION_END
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#define NO_DBX_FUNCTION_END TARGET_AOUT
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#undef DBX_REGISTER_NUMBER
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#define DBX_REGISTER_NUMBER(n) (TARGET_64BIT ? dbx64_register_map[n] \
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: (write_symbols == DWARF2_DEBUG \
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@ -395,29 +233,15 @@ Boston, MA 02111-1307, USA. */
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#define DWARF_FRAME_REGNUM(n) (TARGET_64BIT ? dbx64_register_map[n] \
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: svr4_dbx_register_map[(n)])
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/* tag end of file in elf mode */
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||||
#undef DBX_OUTPUT_MAIN_SOURCE_FILE_END
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||||
#define DBX_OUTPUT_MAIN_SOURCE_FILE_END(FILE, FILENAME) \
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do { \
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if (TARGET_ELF) { \
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asm_fprintf ((FILE), \
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"\t.text\n\t.stabs \"\",%d,0,0,%LLetext\n%LLetext:\n",\
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N_SO); \
|
||||
} \
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||||
} while (0)
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/* stabs-in-elf has offsets relative to function beginning */
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#undef DBX_OUTPUT_LBRAC
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#define DBX_OUTPUT_LBRAC(FILE, NAME) \
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do { \
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fprintf (asmfile, "%s %d,0,0,", ASM_STABN_OP, N_LBRAC); \
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assemble_name (asmfile, buf); \
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||||
if (TARGET_ELF) \
|
||||
{ \
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||||
fputc ('-', asmfile); \
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assemble_name (asmfile, \
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XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \
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||||
} \
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||||
fprintf (asmfile, "\n"); \
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||||
} while (0)
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||||
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@ -426,11 +250,8 @@ Boston, MA 02111-1307, USA. */
|
||||
do { \
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||||
fprintf (asmfile, "%s %d,0,0,", ASM_STABN_OP, N_RBRAC); \
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assemble_name (asmfile, buf); \
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||||
if (TARGET_ELF) \
|
||||
{ \
|
||||
fputc ('-', asmfile); \
|
||||
assemble_name (asmfile, \
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||||
XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \
|
||||
} \
|
||||
fprintf (asmfile, "\n"); \
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||||
} while (0)
|
||||
|
@ -6427,14 +6427,6 @@ mark_varargs ()
|
||||
#define HAS_INIT_SECTION
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||||
#endif
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||||
#ifndef GEN_CALL__MAIN
|
||||
#define GEN_CALL__MAIN \
|
||||
do { \
|
||||
emit_library_call (gen_rtx_SYMBOL_REF (Pmode, NAME__MAIN), LCT_NORMAL, \
|
||||
VOIDmode, 0); \
|
||||
} while (0)
|
||||
#endif
|
||||
|
||||
void
|
||||
expand_main_function ()
|
||||
{
|
||||
@ -6474,8 +6466,9 @@ expand_main_function ()
|
||||
}
|
||||
#endif
|
||||
|
||||
#if defined(INVOKE__main) || !defined (HAS_INIT_SECTION)
|
||||
GEN_CALL__MAIN;
|
||||
#ifndef HAS_INIT_SECTION
|
||||
emit_library_call (gen_rtx_SYMBOL_REF (Pmode, NAME__MAIN), LCT_NORMAL,
|
||||
VOIDmode, 0);
|
||||
#endif
|
||||
}
|
||||
|
||||
|
@ -3004,17 +3004,6 @@ static int warn_std;
|
||||
|
||||
/* Gives value to pass as "warn" to add_prefix for standard prefixes. */
|
||||
static int *warn_std_ptr = 0;
|
||||
|
||||
|
||||
#if defined(FREEBSD_NATIVE)
|
||||
#include <objformat.h>
|
||||
|
||||
typedef enum { OBJFMT_UNKNOWN, OBJFMT_AOUT, OBJFMT_ELF } objf_t;
|
||||
|
||||
static objf_t objformat = OBJFMT_UNKNOWN;
|
||||
#endif
|
||||
|
||||
|
||||
|
||||
#if defined(HAVE_TARGET_OBJECT_SUFFIX) || defined(HAVE_TARGET_EXECUTABLE_SUFFIX)
|
||||
|
||||
@ -3369,19 +3358,6 @@ process_command (argc, argv)
|
||||
}
|
||||
}
|
||||
|
||||
#if defined(FREEBSD_NATIVE)
|
||||
{
|
||||
char buf[64];
|
||||
if (getobjformat (buf, sizeof buf, &argc, argv))
|
||||
if (strcmp (buf, "aout") == 0)
|
||||
objformat = OBJFMT_AOUT;
|
||||
else if (strcmp (buf, "elf") == 0)
|
||||
objformat = OBJFMT_ELF;
|
||||
else
|
||||
fprintf(stderr, "Unrecognized object format: %s\n", buf);
|
||||
}
|
||||
#endif
|
||||
|
||||
/* Options specified as if they appeared on the command line. */
|
||||
temp = getenv ("GCC_OPTIONS");
|
||||
if ((temp) && (strlen (temp) > 0))
|
||||
@ -3871,20 +3847,8 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"
|
||||
/* Use 2 as fourth arg meaning try just the machine as a suffix,
|
||||
as well as trying the machine and the version. */
|
||||
#ifdef FREEBSD_NATIVE
|
||||
switch (objformat)
|
||||
{
|
||||
case OBJFMT_AOUT:
|
||||
n_switches++; /* add implied -maout */
|
||||
add_prefix (&exec_prefixes, PREFIX"/libexec/aout/", "BINUTILS",
|
||||
0, 0, warn_std_ptr, 0);
|
||||
break;
|
||||
case OBJFMT_ELF:
|
||||
add_prefix (&exec_prefixes, PREFIX"/bin/", "BINUTILS",
|
||||
0, 0, warn_std_ptr, 0);
|
||||
break;
|
||||
case OBJFMT_UNKNOWN:
|
||||
fatal ("object format unknown");
|
||||
}
|
||||
#endif /* FREEBSD_NATIVE */
|
||||
#ifndef OS2
|
||||
add_prefix (&exec_prefixes, standard_exec_prefix, "GCC",
|
||||
@ -3962,25 +3926,6 @@ warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n"
|
||||
to the copy in the vector of switches.
|
||||
Store all the infiles in their vector. */
|
||||
|
||||
#if defined(FREEBSD_NATIVE)
|
||||
switch (objformat)
|
||||
{
|
||||
case OBJFMT_AOUT:
|
||||
switches[n_switches].part1 = "maout";
|
||||
switches[n_switches].args = 0;
|
||||
switches[n_switches].live_cond = 0;
|
||||
switches[n_switches].validated = 0;
|
||||
n_switches++;
|
||||
putenv("OBJFORMAT=aout");
|
||||
break;
|
||||
case OBJFMT_ELF:
|
||||
putenv("OBJFORMAT=elf");
|
||||
break;
|
||||
case OBJFMT_UNKNOWN:
|
||||
fatal ("object format unknown");
|
||||
}
|
||||
#endif
|
||||
|
||||
for (i = 1; i < argc; i++)
|
||||
{
|
||||
/* Just skip the switches that were handled by the preceding loop. */
|
||||
|
@ -542,11 +542,6 @@
|
||||
sys/boot/efi/libefi/arch/ia64/ldscript.ia64. */
|
||||
#define HAVE_GAS_SHF_MERGE 1
|
||||
|
||||
/* XXX HAVE_GAS_SHF_MERGE is target-dependent so it shouldn't be put in
|
||||
this target-independent config file. Defining it breaks aout support
|
||||
on i386's. */
|
||||
#undef HAVE_GAS_SHF_MERGE
|
||||
|
||||
/* Define if your assembler supports explicit relocations. */
|
||||
/* #undef HAVE_AS_EXPLICIT_RELOCS */
|
||||
|
||||
@ -566,8 +561,7 @@
|
||||
/* #undef HAVE_AS_OFFSETABLE_LO10 */
|
||||
|
||||
/* Define true if the assembler supports '.long foo@GOTOFF'. */
|
||||
/* DEO:XXX match TARGET_ELF definition in i386/freebsd.h. */
|
||||
#define HAVE_AS_GOTOFF_IN_DATA ((target_flags & MASK_AOUT) == 0)
|
||||
#define HAVE_AS_GOTOFF_IN_DATA 1
|
||||
|
||||
/* Define if your assembler supports dwarf2 .file/.loc directives,
|
||||
and preserves file table indices exactly as given. */
|
||||
|
Loading…
Reference in New Issue
Block a user