(ASM_FIRST_LINE): Print the version string.
(ASM_SPEC): Pass -KVstring given -mversion-string.
(LIB_SPEC): Add crtend.o.
(STARTFILE_SPEC): Add crtbegin.o, and m88kdgux.ld for COFF.
(CTOR_LIST_END, DTOR_LIST_END): Define as -1.
(DO_GLOBAL_{C,D}ORS_BODY): Ignore null entries and look for -1
bounds.
From-SVN: r2926
This commit is contained in:
Tom Wood
parent
4d0e69c3f0
commit
cb1110b5f8
@ -3,7 +3,7 @@
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Copyright (C) 1988, 1989, 1990, 1991 Free Software Foundation, Inc.
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Contributed by Michael Tiemann (tiemann@mcc.com)
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Enhanced by Michael Meissner (meissner@osf.org)
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Currently supported by Tom Wood (wood@dg-rtp.dg.com)
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Version 2 port by Tom Wood (Tom_Wood@NeXT.com)
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This file is part of GNU CC.
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@ -84,9 +84,10 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* Assembler support (-V, silicon filter, legends for mxdb). */
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#undef ASM_SPEC
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#define ASM_SPEC "\
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%{V} %{v:%{!V:-V}} %{pipe: - %{msvr4:%{mversion-03.00:-KV3}}}\
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%{V} %{v:%{!V:-V}} %{pipe:%{!.s: - }\
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%{msvr4:%{mversion-03.00:-KV3}%{!mversion-03.00:%{mversion-*:-KV%*}}}}\
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%{!mlegend:%{mstandard:-Wc,off}}\
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%{mlegend:-Wc,-fix-bb,-h\"gcc-2.2.14\",-s\"%i\"\
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%{mlegend:-Wc,-fix-bb,-h\"gcc-2.3.3\",-s\"%i\"\
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%{traditional:,-lc}%{!traditional:,-lansi-c}\
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%{mstandard:,-keep-std}\
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%{mkeep-coff:,-keep-coff}\
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@ -100,10 +101,13 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* Linker and library spec's.
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-static, -shared, -symbolic, -h* and -z* access AT&T V.4 link options.
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-svr4 instructs gcc to place /usr/lib/values-X[cat].o on link the line.
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The absense of -msvr4 indicates linking done in a COFF environment and
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adds the link script to the link line. In all environments, the first
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and last objects are crtbegin.o and crtend.o.
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When the -G link option is used (-shared and -symbolic) a final link is
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not being done. */
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#undef LIB_SPEC
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#define LIB_SPEC "%{!shared:%{!symbolic:-lc}}"
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#define LIB_SPEC "%{!shared:%{!symbolic:-lc}} crtend.o%s"
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#undef LINK_SPEC
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#define LINK_SPEC "%{z*} %{h*} %{V} %{v:%{!V:-V}} \
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%{static:-dn -Bstatic} \
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@ -113,6 +117,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC "%{!shared:%{!symbolic:%{pg:gcrt0.o%s} \
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%{!pg:%{p:/lib/mcrt0.o}%{!p:/lib/crt0.o}} \
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%{!msvr4:m88kdgux.ld%s} crtbegin.o%s \
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%{svr4:%{ansi:/lib/values-Xc.o} \
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%{!ansi:%{traditional:/lib/values-Xt.o} \
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%{!traditional:/usr/lib/values-Xa.o}}}}}"
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@ -139,8 +144,8 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#undef ASM_FIRST_LINE
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#define ASM_FIRST_LINE(FILE) \
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do { \
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if (VERSION_0300_SYNTAX) \
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fprintf (FILE, "\t%s\t \"03.00\"\n", VERSION_ASM_OP); \
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if (m88k_version) \
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fprintf (FILE, "\t%s\t \"%s\"\n", VERSION_ASM_OP, m88k_version); \
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if (write_symbols != NO_DEBUG \
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&& ! (TARGET_STANDARD && ! TARGET_LEGEND)) \
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{ \
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@ -162,14 +167,14 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#undef WCHAR_TYPE
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#undef WCHAR_TYPE_SIZE
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/* Override svr4.h and m88k.h except when compiling crtstuff.c. */
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/* Override svr4.h and m88k.h except when compiling crtstuff.c. These must
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be constant strings when compiling crtstuff.c. Otherwise, respect the
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-mversion-STRING option used. */
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#if !defined (CRT_BEGIN) && !defined (CRT_END)
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#if 0 /* The SVR4 init method doesn't yet work. */
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#undef INIT_SECTION_ASM_OP
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#define INIT_SECTION_ASM_OP (VERSION_0300_SYNTAX \
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? "section\t .init,\"xa\"" \
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: "section\t .init,\"x\"")
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#endif
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#undef CTORS_SECTION_ASM_OP
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#define CTORS_SECTION_ASM_OP (VERSION_0300_SYNTAX \
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? "section\t .ctors,\"aw\"" \
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@ -179,3 +184,40 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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? "section\t .dtors,\"aw\"" \
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: "section\t .dtors,\"d\"")
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#endif /* crtstuff.c */
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/* The lists of global object constructors and global destructors are always
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placed in the .ctors/.dtors sections. This requires the use of a link
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script if the COFF linker is used, but otherwise COFF and ELF objects
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can be intermixed. A COFF object will pad the section to 16 bytes with
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zeros; and ELF object will not contain padding. We deal with this by
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putting a -1 marker at the begin and end of the list and ignoring zero
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entries. */
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/* Mark the end of the .ctors/.dtors sections with a -1. */
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#define CTOR_LIST_END \
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asm (CTORS_SECTION_ASM_OP); \
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func_ptr __CTOR_END__[1] = { (func_ptr) (-1) }
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#define DTOR_LIST_END \
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asm (DTORS_SECTION_ASM_OP); \
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func_ptr __DTOR_END__[1] = { (func_ptr) (-1) }
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/* Walk the list ignoring NULL entries till we hit the terminating -1. */
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#define DO_GLOBAL_CTORS_BODY \
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do { \
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int i; \
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for (i=1;(int)(__CTOR_LIST__[i]) != -1; i++) \
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if (((int *)__CTOR_LIST__)[i] != 0) \
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__CTOR_LIST__[i] (); \
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} while (0)
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/* Walk the list looking for the terminating -1 that marks the end.
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Go backward and ignore any NULL entries. */
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#define DO_GLOBAL_DTORS_BODY \
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do { \
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int i; \
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for (i=1;(int)(__DTOR_LIST__[i]) != -1; i++); \
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for (i-=1;(int)(__DTOR_LIST__[i]) != -1; i--) \
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if (((int *)__DTOR_LIST__)[i] != 0) \
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__DTOR_LIST__[i] (); \
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} while (0)
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