diff options
| author | Nicolas Roche <roche@adacore.com> | 2017-09-08 15:12:17 +0000 |
|---|---|---|
| committer | Arnaud Charlet <charlet@gcc.gnu.org> | 2017-09-08 17:12:17 +0200 |
| commit | edcc77dbd9f95301a8be1a2f2b0d774680b46a1a (patch) | |
| tree | 4c2dd8030802ada53aad734af16a8b591a2a2e86 /gcc/ada/libgnat/a-except.adb | |
| parent | 9f00251a8e71aa96e243cb1e95dadbdbad8ada4f (diff) | |
| download | gcc-edcc77dbd9f95301a8be1a2f2b0d774680b46a1a.zip gcc-edcc77dbd9f95301a8be1a2f2b0d774680b46a1a.tar.gz gcc-edcc77dbd9f95301a8be1a2f2b0d774680b46a1a.tar.bz2 | |
Make-lang.in, [...]: Find runtime source in libgnat/
2017-09-08 Nicolas Roche <roche@adacore.com>
* gcc-interface/Make-lang.in, gcc-interface/Makefile.in: Find runtime
source in libgnat/
* a-lfztio.ads, g-timsta.ads, g-sercom-linux.adb, s-osprim-solaris.adb,
a-inteio.ads, s-stchop-rtems.adb, s-casuti.adb, s-pack39.adb,
i-vxwork-x86.ads, a-strbou.adb, a-stzmap.adb, s-assert.adb,
a-sfecin.ads, a-cohama.adb, s-casuti.ads, a-suenco.adb, s-pack39.ads,
a-stzmap.ads, a-strbou.ads, s-stalib.adb, s-trasym.adb, g-comver.adb,
s-assert.ads, s-vector.ads, g-cgi.adb, a-cohama.ads, s-wchcnv.adb,
a-titest.adb, s-pack48.adb, a-suenco.ads, a-strunb.adb, s-stalib.ads,
s-trasym.ads, a-nudira.adb, g-comver.ads, a-nuflra.adb, g-cgi.ads,
a-chacon.adb, s-wchcnv.ads, a-excach.adb, s-pack48.ads, a-titest.ads,
a-strunb.ads, s-dwalin.adb, a-nudira.ads, a-chtgbo.adb, s-resfil.adb,
a-scteio.ads, a-nuflra.ads, g-soliop-mingw.ads, s-pack57.adb,
a-chacon.ads, s-bytswa.ads, s-pooloc.adb, g-os_lib.adb, s-dwalin.ads,
a-szuzha.adb, s-resfil.ads, a-chtgbo.ads, s-spsufi.adb, s-pack57.ads,
s-pooloc.ads, g-os_lib.ads, a-stfiha.ads, a-lcteio.ads, a-wtcoau.adb,
a-szuzha.ads, s-mmosin-unix.adb, a-stmaco.ads, s-spsufi.ads,
s-stchop-limit.ads, a-wtcoau.ads, a-exctra.adb, s-mmosin-unix.ads,
s-sequio.adb, s-conca2.adb, g-table.adb, s-imglli.adb,
a-numaux-x86.adb, a-strsea.adb, s-wchstw.adb, a-clrefi.adb,
a-wwboio.adb, a-exctra.ads, s-sequio.ads, s-conca2.ads, a-wwunio.ads,
system-linux-hppa.ads, g-table.ads, s-dimkio.ads, s-imglli.ads,
a-cofove.adb, a-numaux-x86.ads, s-wchstw.ads, a-strsea.ads,
a-clrefi.ads, a-wwboio.ads, s-stratt-xdr.adb, s-crc32.adb,
s-excmac-arm.adb, g-busora.adb, a-cofove.ads, s-osprim-unix.adb,
g-io.adb, s-pack49.adb, s-crc32.ads, s-excmac-arm.ads, a-fzteio.ads,
g-busora.ads, s-stausa.adb, system-linux-mips.ads, sequenio.ads,
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calendar.ads, s-pack58.adb, g-rewdat.ads, g-exctra.ads, s-ststop.adb,
a-cgaaso.ads, a-strfix.adb, a-comlin.adb, a-strunb-shared.adb,
a-wtflau.ads, a-undesu.ads, a-cbhase.adb, a-ztenau.ads, s-os_lib.adb,
a-coorse.adb, a-chlat1.ads, s-pack58.ads, s-ststop.ads, a-strfix.ads,
a-comlin.ads, a-strunb-shared.ads, a-nscefu.ads, s-valboo.adb,
directio.ads, a-chtgke.adb, a-cbhase.ads, a-wtinau.adb,
system-linux-alpha.ads, s-os_lib.ads, a-coorse.ads,
system-linux-s390.ads, s-imgwiu.adb, a-chtgop.adb, s-valboo.ads,
a-chtgke.ads, a-tienio.adb, s-conca3.adb, a-wtinau.ads,
system-darwin-ppc.ads, i-c.adb, s-expllu.adb, g-expect.adb,
g-sha256.ads, s-vallld.adb, s-imgwiu.ads, a-chtgop.ads, a-strmap.adb,
a-tienio.ads, s-conca3.ads, s-imgint.adb, i-c.ads, s-expllu.ads,
s-osprim-darwin.adb, a-cogeso.adb, g-expect.ads, a-iwteio.ads,
s-vallld.ads, a-coinho-shared.adb, g-shsh64.adb, a-strmap.ads,
g-comlin.adb, a-excpol.adb, s-imgint.ads, a-ztdeau.adb, a-cogeso.ads,
a-coinho-shared.ads, g-shsh64.ads, g-comlin.ads, a-stzsup.adb,
a-rbtgbk.adb, a-wtmoau.adb, a-ztdeau.ads, s-exnlli.adb, g-tty.adb,
g-heasor.adb, g-socthi-dummy.adb, s-llflex.ads, a-zchara.ads,
a-stzsup.ads, a-ztcstr.adb, a-rbtgbk.ads, a-sfwtio.ads, a-wtmoau.ads,
a-sulcin.adb, s-exnlli.ads, system-freebsd.ads, a-stunha.adb,
a-charac.ads, g-tty.ads, g-heasor.ads, s-exctra.adb,
g-socthi-dummy.ads, a-coboho.adb, a-ztcstr.ads, a-tideio.adb,
a-sulcin.ads, a-wrstfi.adb, g-alleve.adb, s-pack59.adb, a-ngrear.adb,
a-stboha.adb, a-stunau-shared.adb, a-stunha.ads, a-lfwtio.ads,
s-fileio.adb, s-exctra.ads, a-coboho.ads, a-ioexce.ads, a-tideio.ads,
a-ngrear.ads, a-wrstfi.ads, s-pack59.ads, g-alleve.ads, a-stboha.ads,
s-poosiz.adb, g-traceb.adb, g-rannum.adb, machcode.ads, s-purexc.ads,
s-fileio.ads, a-cfinve.adb, a-crbtgk.adb, system-solaris-x86.ads,
s-poosiz.ads, g-rannum.ads, g-traceb.ads, a-except.adb, s-conca4.adb,
a-stream.adb, a-cfinve.ads, a-crbtgk.ads, s-wchwts.adb,
system-mingw.ads, a-except.ads, s-conca4.ads, a-chzla9.ads,
s-valenu.adb, s-soflin.adb, a-stream.ads, a-cgarso.adb, s-valllu.adb,
g-crc32.adb, s-wchwts.ads, s-fatflt.ads, s-imguns.adb, s-strcom.adb,
g-decstr.adb, s-valenu.ads, s-soflin.ads, a-cgarso.ads, a-cwila1.ads,
s-valllu.ads, g-crc32.ads, s-imguns.ads, g-spipat.adb, s-valwch.adb,
s-strcom.ads, g-decstr.ads, text_io.ads, g-debuti.adb, s-stchop.adb,
g-spipat.ads, s-valwch.ads, a-string.ads, s-exnint.adb, g-awk.adb,
g-tasloc.adb, s-wwdenu.adb, s-boustr.adb, a-zchuni.adb, s-stchop.ads,
g-debuti.ads, s-stopoo.adb, system-dragonfly-x86_64.ads,
system-linux-x86.ads, s-exnint.ads, g-awk.ads, a-stzhas.adb,
g-tasloc.ads, s-wwdenu.ads, g-debpoo.adb, g-except.ads,
g-sse.ads, s-boustr.ads, a-zchuni.ads, s-bitops.adb, s-wwdwch.adb,
s-stopoo.ads, a-catizo.adb, a-stzhas.ads, a-nlcefu.ads, g-debpoo.ads,
i-vxwoio.adb, s-bitops.ads, g-io-put-vxworks.adb, s-wwdwch.ads,
g-sehamd.adb, a-ssicst.adb, a-catizo.ads, s-mmap.adb, g-string.adb,
s-traceb.adb, a-swunau.adb, s-rannum.adb, a-ticoau.adb, i-vxwoio.ads,
g-sehamd.ads, a-stwiun.adb, a-ssicst.ads, s-conca5.adb, a-ssitio.ads,
s-mmap.ads, a-zttest.adb, g-string.ads, g-sercom.adb, a-cdlili.adb,
a-swunau.ads, s-traceb.ads, s-rannum.ads, a-ticoau.ads, system-aix.ads,
a-cforma.adb, a-stwiun.ads, s-conca5.ads, s-carsi8.adb, a-zttest.ads,
g-sercom.ads, a-cdlili.ads, a-cihama.adb, g-sptain.ads, a-cforma.ads,
s-maccod.ads, s-carsi8.ads, a-strsup.adb, g-sha1.adb, a-cihama.ads,
g-stseme.adb, s-traent.adb, s-valcha.adb, g-curexc.ads, a-strsup.ads,
g-sha1.ads, a-sflcin.ads, s-traent.ads, s-pack10.adb, s-valcha.ads,
a-coteio.ads, s-tasloc.adb, g-utf_32.adb, a-suteio.adb, s-except.adb,
a-direct.adb, g-stsifd-sockets.adb, a-numaux-vxworks.ads, s-winext.ads,
s-pack10.ads, a-ztexio.adb, a-tiflau.adb, system-vxworks-arm.ads,
s-tasloc.ads, a-suteio.ads, g-utf_32.ads, s-except.ads,
a-direct.ads, a-swbwha.adb, g-hesorg.adb, s-wwdcha.adb, a-wtedit.adb,
a-ztexio.ads, a-wtcoio.adb, a-tiflau.ads, a-ssizti.ads, s-casi32.adb,
a-swbwha.ads, s-veboop.adb, g-hesorg.ads, s-parame-rtems.adb,
s-wwdcha.ads, a-wtedit.ads, a-stuten.adb, a-coinve.adb, a-wtcoio.ads,
s-casi32.ads, s-string.adb, a-tiinau.adb, a-cusyqu.adb, s-conca6.adb,
s-veboop.ads, a-cgcaso.adb, a-numaux-darwin.adb, a-envvar.adb,
a-stuten.ads, s-secsta.adb, a-coinve.ads, s-string.ads, a-cusyqu.ads,
a-tiinau.ads, s-osprim-vxworks.adb, s-conca6.ads, g-spchge.adb,
s-parint.adb, a-cuprqu.adb, a-cgcaso.ads, a-numaux-darwin.ads,
a-envvar.ads, s-secsta.ads, g-spchge.ads, s-parint.ads, a-cuprqu.ads,
a-swuwti.adb, a-flteio.ads, a-sbhcin.adb, a-coprnu.adb, g-u3spch.adb,
s-atocou.adb, g-ctrl_c.adb, a-swuwti.ads, a-calend.adb, a-sbhcin.ads,
a-coprnu.ads, g-dirope.adb, g-sha512.ads, g-u3spch.ads, s-atocou.ads,
g-ctrl_c.ads, a-timoau.adb, a-witeio.adb, s-pack11.adb, a-strhas.adb,
a-wtflio.adb, g-spitbo.adb, a-calend.ads, a-ztenio.adb, g-dirope.ads,
a-slcain.adb, g-sechas.adb, a-timoau.ads, a-witeio.ads, s-pack11.ads,
s-shasto.adb, s-traceb-mastop.adb, a-ciorse.adb, s-utf_32.adb,
a-strhas.ads, a-wtflio.ads, g-spitbo.ads, a-ztenio.ads, a-slcain.ads,
g-sechas.ads, s-gearop.adb, a-siztio.ads, s-pack20.adb, s-shasto.ads,
a-ciorse.ads, s-utf_32.ads, s-crtl.ads, a-wtinio.adb, s-elaall.adb,
s-explli.adb, s-chepoo.ads, s-gearop.ads, a-einuoc.adb, s-pack20.ads,
system-linux-ia64.ads, a-swunau-shared.adb, a-wtinio.ads, g-alvety.ads,
a-liztio.ads, g-calend.adb, s-conca7.adb, s-elaall.ads, s-explli.ads,
a-einuoc.ads, s-widboo.adb, s-imgdec.adb, a-cbhama.adb, g-calend.ads,
s-conca7.ads, a-llitio.ads, i-cexten.ads, a-coorma.adb, s-widboo.ads,
s-diflio.adb, g-souinf.ads, s-imgdec.ads, g-strhas.ads, a-cbhama.ads,
g-shshco.adb, a-ztdeio.adb, s-gloloc.adb, a-coorma.ads, g-wispch.adb,
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system-rtems.ads, s-gloloc.ads, a-csquin.ads, a-cofuse.adb,
g-wispch.ads, s-pack03.ads, s-casi16.ads, s-io.adb, a-colien.ads,
g-alveop.adb, gnat.ads, s-diinio.adb, a-cfdlli.adb, g-pehage.adb,
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g-alveop.ads, a-cfdlli.ads, s-diinio.ads, a-stwiha.ads, g-pehage.ads,
a-locale.ads, a-tirsfi.ads, s-pack12.ads, s-valuti.adb, g-cppexc.adb,
system-vxworks-ppc.ads, g-memdum.adb, a-lfteio.ads, s-pack21.adb,
s-unstyp.ads, s-valuti.ads, g-cppexc.ads, system-hpux-ia64.ads,
g-memdum.ads, g-soccon.ads, g-altive.ads, a-crbtgo.adb, s-pack21.ads,
a-llizti.ads, a-numaux-libc-x86.ads, s-expint.adb, s-conca8.adb,
a-crbtgo.ads, s-pack30.adb, s-vallli.adb, s-geveop.adb, s-expint.ads,
a-direio.adb, s-conca8.ads, a-widcha.ads, s-pack30.ads, s-vallli.ads,
s-strhas.adb, s-geveop.ads, g-md5.adb, a-direio.ads, a-numaux.ads,
s-ransee.adb, a-szbzha.adb, i-cobol.adb, g-busorg.adb, s-strhas.ads,
g-md5.ads, s-widenu.adb, s-ransee.ads, s-widllu.adb, a-szbzha.ads,
a-ststio.adb, i-cobol.ads, g-busorg.ads, g-regpat.adb, s-widenu.ads,
a-secain.adb, s-widllu.ads, s-pack13.adb, g-encstr.adb, a-ztcoau.adb,
a-ststio.ads, s-widwch.adb, g-regpat.ads, s-atacco.adb, a-cborse.adb,
a-secain.ads, s-pack13.ads, g-encstr.ads, a-ztcoau.ads, s-widwch.ads,
g-io_aux.adb, s-atacco.ads, a-ncelfu.ads, interfac.ads, a-cborse.ads,
g-regexp.adb, s-pack22.adb, a-szuzti.adb, g-io_aux.ads, s-caun32.adb,
a-nselfu.ads, g-regexp.ads, s-pack22.ads, a-ticoio.adb, a-szuzti.ads,
g-diopit.adb, s-caun32.ads, s-conca9.adb, a-tags.adb, a-swmwco.ads,
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s-conca9.ads, g-diopit.ads, a-tags.ads, a-nllcef.ads, a-izteio.ads,
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s-flocon-none.adb, s-valint.ads, a-ssiwti.ads, s-mmosin-mingw.adb,
s-pack40.adb, s-pack05.adb, a-ztflau.adb, g-dyntab.ads,
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s-regpat.adb, g-mbdira.adb, s-pack14.adb, a-diocst.ads, g-flocon.ads,
g-mbflra.adb, a-ztinau.adb, s-dim.ads, s-mantis.adb, a-stwisu.ads,
g-byorma.ads, s-atopri.adb, g-wistsp.ads, a-uncdea.ads, s-widcha.adb,
a-caldel.adb, s-regpat.ads, g-mbdira.ads, a-tiflio.adb, s-pack14.ads,
s-parame.adb, a-liwtio.ads, s-memory.adb, g-mbflra.ads, a-ztinau.ads,
a-wtgeau.adb, s-direio.adb, s-mantis.ads, s-atopri.ads, s-widcha.ads,
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s-regexp.ads, a-wtfiio.adb, a-comutr.adb, a-exexpr.adb, a-tiinio.ads,
a-ztmoau.adb, a-cohata.ads, a-wtfiio.ads, s-imgrea.adb, ada.ads,
a-szunau-shared.adb, a-comutr.ads, s-valuns.adb, a-ztmoau.ads,
system-linux-arm.ads, s-osprim-x32.adb, s-pack41.adb, s-pack06.adb,
s-imgrea.ads, s-valuns.ads, s-finroo.adb, s-caun16.adb, s-pooglo.adb,
a-zrstfi.adb, a-suenst.adb, s-pack41.ads, g-binenv.adb, s-pack06.ads,
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g-socket-dummy.adb, s-pack51.ads, s-dimmks.ads, s-casi64.ads,
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a-ztfiio.ads, system-darwin-arm.ads: Move non-tasking runtime sources
to libgnat subdirectory.
From-SVN: r251902
Diffstat (limited to 'gcc/ada/libgnat/a-except.adb')
| -rw-r--r-- | gcc/ada/libgnat/a-except.adb | 1748 |
1 files changed, 1748 insertions, 0 deletions
diff --git a/gcc/ada/libgnat/a-except.adb b/gcc/ada/libgnat/a-except.adb new file mode 100644 index 0000000..1b8e625 --- /dev/null +++ b/gcc/ada/libgnat/a-except.adb @@ -0,0 +1,1748 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT COMPILER COMPONENTS -- +-- -- +-- A D A . E X C E P T I O N S -- +-- -- +-- B o d y -- +-- -- +-- Copyright (C) 1992-2017, Free Software Foundation, Inc. -- +-- -- +-- GNAT is free software; you can redistribute it and/or modify it under -- +-- terms of the GNU General Public License as published by the Free Soft- -- +-- ware Foundation; either version 3, or (at your option) any later ver- -- +-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- +-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- +-- or FITNESS FOR A PARTICULAR PURPOSE. -- +-- -- +-- As a special exception under Section 7 of GPL version 3, you are granted -- +-- additional permissions described in the GCC Runtime Library Exception, -- +-- version 3.1, as published by the Free Software Foundation. -- +-- -- +-- You should have received a copy of the GNU General Public License and -- +-- 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/>. -- +-- -- +-- GNAT was originally developed by the GNAT team at New York University. -- +-- Extensive contributions were provided by Ada Core Technologies Inc. -- +-- -- +------------------------------------------------------------------------------ + +pragma Style_Checks (All_Checks); +-- No subprogram ordering check, due to logical grouping + +pragma Polling (Off); +-- We must turn polling off for this unit, because otherwise we get +-- elaboration circularities with System.Exception_Tables. + +with System; use System; +with System.Exceptions; use System.Exceptions; +with System.Exceptions_Debug; use System.Exceptions_Debug; +with System.Standard_Library; use System.Standard_Library; +with System.Soft_Links; use System.Soft_Links; +with System.WCh_Con; use System.WCh_Con; +with System.WCh_StW; use System.WCh_StW; + +pragma Warnings (Off); +-- Suppress complaints about Symbolic not being referenced, and about it not +-- having pragma Preelaborate. +with System.Traceback.Symbolic; +-- Bring Symbolic into the closure. If it is the s-trasym-dwarf.adb version, +-- it will install symbolic tracebacks as the default decorator. Otherwise, +-- symbolic tracebacks are not supported, and we fall back to hexadecimal +-- addresses. +pragma Warnings (On); + +package body Ada.Exceptions is + + pragma Suppress (All_Checks); + -- We definitely do not want exceptions occurring within this unit, or + -- we are in big trouble. If an exceptional situation does occur, better + -- that it not be raised, since raising it can cause confusing chaos. + + ----------------------- + -- Local Subprograms -- + ----------------------- + + -- Note: the exported subprograms in this package body are called directly + -- from C clients using the given external name, even though they are not + -- technically visible in the Ada sense. + + function Code_Address_For_AAA return System.Address; + function Code_Address_For_ZZZ return System.Address; + -- Return start and end of procedures in this package + -- + -- These procedures are used to provide exclusion bounds in + -- calls to Call_Chain at exception raise points from this unit. The + -- purpose is to arrange for the exception tracebacks not to include + -- frames from subprograms involved in the raise process, as these are + -- meaningless from the user's standpoint. + -- + -- For these bounds to be meaningful, we need to ensure that the object + -- code for the subprograms involved in processing a raise is located + -- after the object code Code_Address_For_AAA and before the object + -- code Code_Address_For_ZZZ. This will indeed be the case as long as + -- the following rules are respected: + -- + -- 1) The bodies of the subprograms involved in processing a raise + -- are located after the body of Code_Address_For_AAA and before the + -- body of Code_Address_For_ZZZ. + -- + -- 2) No pragma Inline applies to any of these subprograms, as this + -- could delay the corresponding assembly output until the end of + -- the unit. + + procedure Call_Chain (Excep : EOA); + -- Store up to Max_Tracebacks in Excep, corresponding to the current + -- call chain. + + function Image (Index : Integer) return String; + -- Return string image corresponding to Index + + procedure To_Stderr (S : String); + pragma Export (Ada, To_Stderr, "__gnat_to_stderr"); + -- Little routine to output string to stderr that is also used + -- in the tasking run time. + + procedure To_Stderr (C : Character); + pragma Inline (To_Stderr); + pragma Export (Ada, To_Stderr, "__gnat_to_stderr_char"); + -- Little routine to output a character to stderr, used by some of + -- the separate units below. + + package Exception_Data is + + ----------------------------------- + -- Exception Message Subprograms -- + ----------------------------------- + + procedure Set_Exception_C_Msg + (Excep : EOA; + Id : Exception_Id; + Msg1 : System.Address; + Line : Integer := 0; + Column : Integer := 0; + Msg2 : System.Address := System.Null_Address); + -- This routine is called to setup the exception referenced by X + -- to contain the indicated Id value and message. Msg1 is a null + -- terminated string which is generated as the exception message. If + -- line is non-zero, then a colon and the decimal representation of + -- this integer is appended to the message. Ditto for Column. When Msg2 + -- is non-null, a space and this additional null terminated string is + -- added to the message. + + procedure Set_Exception_Msg + (Excep : EOA; + Id : Exception_Id; + Message : String); + -- This routine is called to setup the exception referenced by X + -- to contain the indicated Id value and message. Message is a string + -- which is generated as the exception message. + + --------------------------------------- + -- Exception Information Subprograms -- + --------------------------------------- + + function Untailored_Exception_Information + (X : Exception_Occurrence) return String; + -- This is used by Stream_Attributes.EO_To_String to convert an + -- Exception_Occurrence to a String for the stream attributes. + -- String_To_EO understands the format, as documented here. + -- + -- The format of the string is as follows: + -- + -- raised <exception name> : <message> + -- (" : <message>" is present only if Exception_Message is not empty) + -- PID=nnnn (only if nonzero) + -- Call stack traceback locations: (only if at least one location) + -- <0xyyyyyyyy 0xyyyyyyyy ...> (is recorded) + -- + -- The lines are separated by a ASCII.LF character. + -- The nnnn is the partition Id given as decimal digits. + -- The 0x... line represents traceback program counter locations, in + -- execution order with the first one being the exception location. + -- + -- The Exception_Name and Message lines are omitted in the abort + -- signal case, since this is not really an exception. + -- + -- Note: If the format of the generated string is changed, please note + -- that an equivalent modification to the routine String_To_EO must be + -- made to preserve proper functioning of the stream attributes. + + function Exception_Information (X : Exception_Occurrence) return String; + -- This is the implementation of Ada.Exceptions.Exception_Information, + -- as defined in the Ada RM. + -- + -- If no traceback decorator (see GNAT.Exception_Traces) is currently + -- in place, this is the same as Untailored_Exception_Information. + -- Otherwise, the decorator is used to produce a symbolic traceback + -- instead of hexadecimal addresses. + -- + -- Note that unlike Untailored_Exception_Information, there is no need + -- to keep the output of Exception_Information stable for streaming + -- purposes, and in fact the output differs across platforms. + + end Exception_Data; + + package Exception_Traces is + + ------------------------------------------------- + -- Run-Time Exception Notification Subprograms -- + ------------------------------------------------- + + -- These subprograms provide a common run-time interface to trigger the + -- actions required when an exception is about to be propagated (e.g. + -- user specified actions or output of exception information). They are + -- exported to be usable by the Ada exception handling personality + -- routine when the GCC 3 mechanism is used. + + procedure Notify_Handled_Exception (Excep : EOA); + pragma Export + (C, Notify_Handled_Exception, "__gnat_notify_handled_exception"); + -- This routine is called for a handled occurrence is about to be + -- propagated. + + procedure Notify_Unhandled_Exception (Excep : EOA); + pragma Export + (C, Notify_Unhandled_Exception, "__gnat_notify_unhandled_exception"); + -- This routine is called when an unhandled occurrence is about to be + -- propagated. + + procedure Unhandled_Exception_Terminate (Excep : EOA); + pragma No_Return (Unhandled_Exception_Terminate); + -- This procedure is called to terminate execution following an + -- unhandled exception. The exception information, including + -- traceback if available is output, and execution is then + -- terminated. Note that at the point where this routine is + -- called, the stack has typically been destroyed. + + end Exception_Traces; + + package Exception_Propagation is + + --------------------------------------- + -- Exception Propagation Subprograms -- + --------------------------------------- + + function Allocate_Occurrence return EOA; + -- Allocate an exception occurrence (as well as the machine occurrence) + + procedure Propagate_Exception (Excep : EOA); + pragma No_Return (Propagate_Exception); + -- This procedure propagates the exception represented by Excep + + end Exception_Propagation; + + package Stream_Attributes is + + ---------------------------------- + -- Stream Attribute Subprograms -- + ---------------------------------- + + function EId_To_String (X : Exception_Id) return String; + function String_To_EId (S : String) return Exception_Id; + -- Functions for implementing Exception_Id stream attributes + + function EO_To_String (X : Exception_Occurrence) return String; + function String_To_EO (S : String) return Exception_Occurrence; + -- Functions for implementing Exception_Occurrence stream + -- attributes + + end Stream_Attributes; + + procedure Complete_Occurrence (X : EOA); + -- Finish building the occurrence: save the call chain and notify the + -- debugger. + + procedure Complete_And_Propagate_Occurrence (X : EOA); + pragma No_Return (Complete_And_Propagate_Occurrence); + -- This is a simple wrapper to Complete_Occurrence and + -- Exception_Propagation.Propagate_Exception. + + function Create_Occurrence_From_Signal_Handler + (E : Exception_Id; + M : System.Address) return EOA; + -- Create and build an exception occurrence using exception id E and + -- nul-terminated message M. + + function Create_Machine_Occurrence_From_Signal_Handler + (E : Exception_Id; + M : System.Address) return System.Address; + pragma Export (C, Create_Machine_Occurrence_From_Signal_Handler, + "__gnat_create_machine_occurrence_from_signal_handler"); + -- Create and build an exception occurrence using exception id E and + -- nul-terminated message M. Return the machine occurrence. + + procedure Raise_Exception_No_Defer + (E : Exception_Id; + Message : String := ""); + pragma Export + (Ada, Raise_Exception_No_Defer, + "ada__exceptions__raise_exception_no_defer"); + pragma No_Return (Raise_Exception_No_Defer); + -- Similar to Raise_Exception, but with no abort deferral + + procedure Raise_With_Msg (E : Exception_Id); + pragma No_Return (Raise_With_Msg); + pragma Export (C, Raise_With_Msg, "__gnat_raise_with_msg"); + -- Raises an exception with given exception id value. A message + -- is associated with the raise, and has already been stored in the + -- exception occurrence referenced by the Current_Excep in the TSD. + -- Abort is deferred before the raise call. + + procedure Raise_With_Location_And_Msg + (E : Exception_Id; + F : System.Address; + L : Integer; + C : Integer := 0; + M : System.Address := System.Null_Address); + pragma No_Return (Raise_With_Location_And_Msg); + -- Raise an exception with given exception id value. A filename and line + -- number is associated with the raise and is stored in the exception + -- occurrence and in addition a column and a string message M may be + -- appended to this (if not null/0). + + procedure Raise_Constraint_Error (File : System.Address; Line : Integer); + pragma No_Return (Raise_Constraint_Error); + pragma Export (C, Raise_Constraint_Error, "__gnat_raise_constraint_error"); + -- Raise constraint error with file:line information + + procedure Raise_Constraint_Error_Msg + (File : System.Address; + Line : Integer; + Column : Integer; + Msg : System.Address); + pragma No_Return (Raise_Constraint_Error_Msg); + pragma Export + (C, Raise_Constraint_Error_Msg, "__gnat_raise_constraint_error_msg"); + -- Raise constraint error with file:line:col + msg information + + procedure Raise_Program_Error (File : System.Address; Line : Integer); + pragma No_Return (Raise_Program_Error); + pragma Export (C, Raise_Program_Error, "__gnat_raise_program_error"); + -- Raise program error with file:line information + + procedure Raise_Program_Error_Msg + (File : System.Address; + Line : Integer; + Msg : System.Address); + pragma No_Return (Raise_Program_Error_Msg); + pragma Export + (C, Raise_Program_Error_Msg, "__gnat_raise_program_error_msg"); + -- Raise program error with file:line + msg information + + procedure Raise_Storage_Error (File : System.Address; Line : Integer); + pragma No_Return (Raise_Storage_Error); + pragma Export (C, Raise_Storage_Error, "__gnat_raise_storage_error"); + -- Raise storage error with file:line information + + procedure Raise_Storage_Error_Msg + (File : System.Address; + Line : Integer; + Msg : System.Address); + pragma No_Return (Raise_Storage_Error_Msg); + pragma Export + (C, Raise_Storage_Error_Msg, "__gnat_raise_storage_error_msg"); + -- Raise storage error with file:line + reason msg information + + -- The exception raising process and the automatic tracing mechanism rely + -- on some careful use of flags attached to the exception occurrence. The + -- graph below illustrates the relations between the Raise_ subprograms + -- and identifies the points where basic flags such as Exception_Raised + -- are initialized. + + -- (i) signs indicate the flags initialization points. R stands for Raise, + -- W for With, and E for Exception. + + -- R_No_Msg R_E R_Pe R_Ce R_Se + -- | | | | | + -- +--+ +--+ +---+ | +---+ + -- | | | | | + -- R_E_No_Defer(i) R_W_Msg(i) R_W_Loc + -- | | | | + -- +------------+ | +-----------+ +--+ + -- | | | | + -- | | | Set_E_C_Msg(i) + -- | | | + -- Complete_And_Propagate_Occurrence + + procedure Reraise; + pragma No_Return (Reraise); + pragma Export (C, Reraise, "__gnat_reraise"); + -- Reraises the exception referenced by the Current_Excep field + -- of the TSD (all fields of this exception occurrence are set). + -- Abort is deferred before the reraise operation. Called from + -- System.Tasking.RendezVous.Exceptional_Complete_RendezVous + + procedure Transfer_Occurrence + (Target : Exception_Occurrence_Access; + Source : Exception_Occurrence); + pragma Export (C, Transfer_Occurrence, "__gnat_transfer_occurrence"); + -- Called from s-tasren.adb:Local_Complete_RendezVous and + -- s-tpobop.adb:Exceptional_Complete_Entry_Body to setup Target from + -- Source as an exception to be propagated in the caller task. Target is + -- expected to be a pointer to the fixed TSD occurrence for this task. + + -------------------------------- + -- Run-Time Check Subprograms -- + -------------------------------- + + -- These subprograms raise a specific exception with a reason message + -- attached. The parameters are the file name and line number in each + -- case. The names are defined by Exp_Ch11.Get_RT_Exception_Name. + + procedure Rcheck_CE_Access_Check + (File : System.Address; Line : Integer); + procedure Rcheck_CE_Null_Access_Parameter + (File : System.Address; Line : Integer); + procedure Rcheck_CE_Discriminant_Check + (File : System.Address; Line : Integer); + procedure Rcheck_CE_Divide_By_Zero + (File : System.Address; Line : Integer); + procedure Rcheck_CE_Explicit_Raise + (File : System.Address; Line : Integer); + procedure Rcheck_CE_Index_Check + (File : System.Address; Line : Integer); + procedure Rcheck_CE_Invalid_Data + (File : System.Address; Line : Integer); + procedure Rcheck_CE_Length_Check + (File : System.Address; Line : Integer); + procedure Rcheck_CE_Null_Exception_Id + (File : System.Address; Line : Integer); + procedure Rcheck_CE_Null_Not_Allowed + (File : System.Address; Line : Integer); + procedure Rcheck_CE_Overflow_Check + (File : System.Address; Line : Integer); + procedure Rcheck_CE_Partition_Check + (File : System.Address; Line : Integer); + procedure Rcheck_CE_Range_Check + (File : System.Address; Line : Integer); + procedure Rcheck_CE_Tag_Check + (File : System.Address; Line : Integer); + procedure Rcheck_PE_Access_Before_Elaboration + (File : System.Address; Line : Integer); + procedure Rcheck_PE_Accessibility_Check + (File : System.Address; Line : Integer); + procedure Rcheck_PE_Address_Of_Intrinsic + (File : System.Address; Line : Integer); + procedure Rcheck_PE_Aliased_Parameters + (File : System.Address; Line : Integer); + procedure Rcheck_PE_All_Guards_Closed + (File : System.Address; Line : Integer); + procedure Rcheck_PE_Bad_Predicated_Generic_Type + (File : System.Address; Line : Integer); + procedure Rcheck_PE_Current_Task_In_Entry_Body + (File : System.Address; Line : Integer); + procedure Rcheck_PE_Duplicated_Entry_Address + (File : System.Address; Line : Integer); + procedure Rcheck_PE_Explicit_Raise + (File : System.Address; Line : Integer); + procedure Rcheck_PE_Implicit_Return + (File : System.Address; Line : Integer); + procedure Rcheck_PE_Misaligned_Address_Value + (File : System.Address; Line : Integer); + procedure Rcheck_PE_Missing_Return + (File : System.Address; Line : Integer); + procedure Rcheck_PE_Non_Transportable_Actual + (File : System.Address; Line : Integer); + procedure Rcheck_PE_Overlaid_Controlled_Object + (File : System.Address; Line : Integer); + procedure Rcheck_PE_Potentially_Blocking_Operation + (File : System.Address; Line : Integer); + procedure Rcheck_PE_Stubbed_Subprogram_Called + (File : System.Address; Line : Integer); + procedure Rcheck_PE_Unchecked_Union_Restriction + (File : System.Address; Line : Integer); + procedure Rcheck_SE_Empty_Storage_Pool + (File : System.Address; Line : Integer); + procedure Rcheck_SE_Explicit_Raise + (File : System.Address; Line : Integer); + procedure Rcheck_SE_Infinite_Recursion + (File : System.Address; Line : Integer); + procedure Rcheck_SE_Object_Too_Large + (File : System.Address; Line : Integer); + procedure Rcheck_PE_Stream_Operation_Not_Allowed + (File : System.Address; Line : Integer); + procedure Rcheck_CE_Access_Check_Ext + (File : System.Address; Line, Column : Integer); + procedure Rcheck_CE_Index_Check_Ext + (File : System.Address; Line, Column, Index, First, Last : Integer); + procedure Rcheck_CE_Invalid_Data_Ext + (File : System.Address; Line, Column, Index, First, Last : Integer); + procedure Rcheck_CE_Range_Check_Ext + (File : System.Address; Line, Column, Index, First, Last : Integer); + + procedure Rcheck_PE_Finalize_Raised_Exception + (File : System.Address; Line : Integer); + -- This routine is separated out because it has quite different behavior + -- from the others. This is the "finalize/adjust raised exception". This + -- subprogram is always called with abort deferred, unlike all other + -- Rcheck_* subprograms, it needs to call Raise_Exception_No_Defer. + + pragma Export (C, Rcheck_CE_Access_Check, + "__gnat_rcheck_CE_Access_Check"); + pragma Export (C, Rcheck_CE_Null_Access_Parameter, + "__gnat_rcheck_CE_Null_Access_Parameter"); + pragma Export (C, Rcheck_CE_Discriminant_Check, + "__gnat_rcheck_CE_Discriminant_Check"); + pragma Export (C, Rcheck_CE_Divide_By_Zero, + "__gnat_rcheck_CE_Divide_By_Zero"); + pragma Export (C, Rcheck_CE_Explicit_Raise, + "__gnat_rcheck_CE_Explicit_Raise"); + pragma Export (C, Rcheck_CE_Index_Check, + "__gnat_rcheck_CE_Index_Check"); + pragma Export (C, Rcheck_CE_Invalid_Data, + "__gnat_rcheck_CE_Invalid_Data"); + pragma Export (C, Rcheck_CE_Length_Check, + "__gnat_rcheck_CE_Length_Check"); + pragma Export (C, Rcheck_CE_Null_Exception_Id, + "__gnat_rcheck_CE_Null_Exception_Id"); + pragma Export (C, Rcheck_CE_Null_Not_Allowed, + "__gnat_rcheck_CE_Null_Not_Allowed"); + pragma Export (C, Rcheck_CE_Overflow_Check, + "__gnat_rcheck_CE_Overflow_Check"); + pragma Export (C, Rcheck_CE_Partition_Check, + "__gnat_rcheck_CE_Partition_Check"); + pragma Export (C, Rcheck_CE_Range_Check, + "__gnat_rcheck_CE_Range_Check"); + pragma Export (C, Rcheck_CE_Tag_Check, + "__gnat_rcheck_CE_Tag_Check"); + pragma Export (C, Rcheck_PE_Access_Before_Elaboration, + "__gnat_rcheck_PE_Access_Before_Elaboration"); + pragma Export (C, Rcheck_PE_Accessibility_Check, + "__gnat_rcheck_PE_Accessibility_Check"); + pragma Export (C, Rcheck_PE_Address_Of_Intrinsic, + "__gnat_rcheck_PE_Address_Of_Intrinsic"); + pragma Export (C, Rcheck_PE_Aliased_Parameters, + "__gnat_rcheck_PE_Aliased_Parameters"); + pragma Export (C, Rcheck_PE_All_Guards_Closed, + "__gnat_rcheck_PE_All_Guards_Closed"); + pragma Export (C, Rcheck_PE_Bad_Predicated_Generic_Type, + "__gnat_rcheck_PE_Bad_Predicated_Generic_Type"); + pragma Export (C, Rcheck_PE_Current_Task_In_Entry_Body, + "__gnat_rcheck_PE_Current_Task_In_Entry_Body"); + pragma Export (C, Rcheck_PE_Duplicated_Entry_Address, + "__gnat_rcheck_PE_Duplicated_Entry_Address"); + pragma Export (C, Rcheck_PE_Explicit_Raise, + "__gnat_rcheck_PE_Explicit_Raise"); + pragma Export (C, Rcheck_PE_Finalize_Raised_Exception, + "__gnat_rcheck_PE_Finalize_Raised_Exception"); + pragma Export (C, Rcheck_PE_Implicit_Return, + "__gnat_rcheck_PE_Implicit_Return"); + pragma Export (C, Rcheck_PE_Misaligned_Address_Value, + "__gnat_rcheck_PE_Misaligned_Address_Value"); + pragma Export (C, Rcheck_PE_Missing_Return, + "__gnat_rcheck_PE_Missing_Return"); + pragma Export (C, Rcheck_PE_Non_Transportable_Actual, + "__gnat_rcheck_PE_Non_Transportable_Actual"); + pragma Export (C, Rcheck_PE_Overlaid_Controlled_Object, + "__gnat_rcheck_PE_Overlaid_Controlled_Object"); + pragma Export (C, Rcheck_PE_Potentially_Blocking_Operation, + "__gnat_rcheck_PE_Potentially_Blocking_Operation"); + pragma Export (C, Rcheck_PE_Stream_Operation_Not_Allowed, + "__gnat_rcheck_PE_Stream_Operation_Not_Allowed"); + pragma Export (C, Rcheck_PE_Stubbed_Subprogram_Called, + "__gnat_rcheck_PE_Stubbed_Subprogram_Called"); + pragma Export (C, Rcheck_PE_Unchecked_Union_Restriction, + "__gnat_rcheck_PE_Unchecked_Union_Restriction"); + pragma Export (C, Rcheck_SE_Empty_Storage_Pool, + "__gnat_rcheck_SE_Empty_Storage_Pool"); + pragma Export (C, Rcheck_SE_Explicit_Raise, + "__gnat_rcheck_SE_Explicit_Raise"); + pragma Export (C, Rcheck_SE_Infinite_Recursion, + "__gnat_rcheck_SE_Infinite_Recursion"); + pragma Export (C, Rcheck_SE_Object_Too_Large, + "__gnat_rcheck_SE_Object_Too_Large"); + + pragma Export (C, Rcheck_CE_Access_Check_Ext, + "__gnat_rcheck_CE_Access_Check_ext"); + pragma Export (C, Rcheck_CE_Index_Check_Ext, + "__gnat_rcheck_CE_Index_Check_ext"); + pragma Export (C, Rcheck_CE_Invalid_Data_Ext, + "__gnat_rcheck_CE_Invalid_Data_ext"); + pragma Export (C, Rcheck_CE_Range_Check_Ext, + "__gnat_rcheck_CE_Range_Check_ext"); + + -- None of these procedures ever returns (they raise an exception). By + -- using pragma No_Return, we ensure that any junk code after the call, + -- such as normal return epilogue stuff, can be eliminated). + + pragma No_Return (Rcheck_CE_Access_Check); + pragma No_Return (Rcheck_CE_Null_Access_Parameter); + pragma No_Return (Rcheck_CE_Discriminant_Check); + pragma No_Return (Rcheck_CE_Divide_By_Zero); + pragma No_Return (Rcheck_CE_Explicit_Raise); + pragma No_Return (Rcheck_CE_Index_Check); + pragma No_Return (Rcheck_CE_Invalid_Data); + pragma No_Return (Rcheck_CE_Length_Check); + pragma No_Return (Rcheck_CE_Null_Exception_Id); + pragma No_Return (Rcheck_CE_Null_Not_Allowed); + pragma No_Return (Rcheck_CE_Overflow_Check); + pragma No_Return (Rcheck_CE_Partition_Check); + pragma No_Return (Rcheck_CE_Range_Check); + pragma No_Return (Rcheck_CE_Tag_Check); + pragma No_Return (Rcheck_PE_Access_Before_Elaboration); + pragma No_Return (Rcheck_PE_Accessibility_Check); + pragma No_Return (Rcheck_PE_Address_Of_Intrinsic); + pragma No_Return (Rcheck_PE_Aliased_Parameters); + pragma No_Return (Rcheck_PE_All_Guards_Closed); + pragma No_Return (Rcheck_PE_Bad_Predicated_Generic_Type); + pragma No_Return (Rcheck_PE_Current_Task_In_Entry_Body); + pragma No_Return (Rcheck_PE_Duplicated_Entry_Address); + pragma No_Return (Rcheck_PE_Explicit_Raise); + pragma No_Return (Rcheck_PE_Implicit_Return); + pragma No_Return (Rcheck_PE_Misaligned_Address_Value); + pragma No_Return (Rcheck_PE_Missing_Return); + pragma No_Return (Rcheck_PE_Non_Transportable_Actual); + pragma No_Return (Rcheck_PE_Overlaid_Controlled_Object); + pragma No_Return (Rcheck_PE_Potentially_Blocking_Operation); + pragma No_Return (Rcheck_PE_Stream_Operation_Not_Allowed); + pragma No_Return (Rcheck_PE_Stubbed_Subprogram_Called); + pragma No_Return (Rcheck_PE_Unchecked_Union_Restriction); + pragma No_Return (Rcheck_PE_Finalize_Raised_Exception); + pragma No_Return (Rcheck_SE_Empty_Storage_Pool); + pragma No_Return (Rcheck_SE_Explicit_Raise); + pragma No_Return (Rcheck_SE_Infinite_Recursion); + pragma No_Return (Rcheck_SE_Object_Too_Large); + + pragma No_Return (Rcheck_CE_Access_Check_Ext); + pragma No_Return (Rcheck_CE_Index_Check_Ext); + pragma No_Return (Rcheck_CE_Invalid_Data_Ext); + pragma No_Return (Rcheck_CE_Range_Check_Ext); + + --------------------------------------------- + -- Reason Strings for Run-Time Check Calls -- + --------------------------------------------- + + -- These strings are null-terminated and are used by Rcheck_nn. The + -- strings correspond to the definitions for Types.RT_Exception_Code. + + use ASCII; + + Rmsg_00 : constant String := "access check failed" & NUL; + Rmsg_01 : constant String := "access parameter is null" & NUL; + Rmsg_02 : constant String := "discriminant check failed" & NUL; + Rmsg_03 : constant String := "divide by zero" & NUL; + Rmsg_04 : constant String := "explicit raise" & NUL; + Rmsg_05 : constant String := "index check failed" & NUL; + Rmsg_06 : constant String := "invalid data" & NUL; + Rmsg_07 : constant String := "length check failed" & NUL; + Rmsg_08 : constant String := "null Exception_Id" & NUL; + Rmsg_09 : constant String := "null-exclusion check failed" & NUL; + Rmsg_10 : constant String := "overflow check failed" & NUL; + Rmsg_11 : constant String := "partition check failed" & NUL; + Rmsg_12 : constant String := "range check failed" & NUL; + Rmsg_13 : constant String := "tag check failed" & NUL; + Rmsg_14 : constant String := "access before elaboration" & NUL; + Rmsg_15 : constant String := "accessibility check failed" & NUL; + Rmsg_16 : constant String := "attempt to take address of" & + " intrinsic subprogram" & NUL; + Rmsg_17 : constant String := "aliased parameters" & NUL; + Rmsg_18 : constant String := "all guards closed" & NUL; + Rmsg_19 : constant String := "improper use of generic subtype" & + " with predicate" & NUL; + Rmsg_20 : constant String := "Current_Task referenced in entry" & + " body" & NUL; + Rmsg_21 : constant String := "duplicated entry address" & NUL; + Rmsg_22 : constant String := "explicit raise" & NUL; + Rmsg_23 : constant String := "finalize/adjust raised exception" & NUL; + Rmsg_24 : constant String := "implicit return with No_Return" & NUL; + Rmsg_25 : constant String := "misaligned address value" & NUL; + Rmsg_26 : constant String := "missing return" & NUL; + Rmsg_27 : constant String := "overlaid controlled object" & NUL; + Rmsg_28 : constant String := "potentially blocking operation" & NUL; + Rmsg_29 : constant String := "stubbed subprogram called" & NUL; + Rmsg_30 : constant String := "unchecked union restriction" & NUL; + Rmsg_31 : constant String := "actual/returned class-wide" & + " value not transportable" & NUL; + Rmsg_32 : constant String := "empty storage pool" & NUL; + Rmsg_33 : constant String := "explicit raise" & NUL; + Rmsg_34 : constant String := "infinite recursion" & NUL; + Rmsg_35 : constant String := "object too large" & NUL; + Rmsg_36 : constant String := "stream operation not allowed" & NUL; + + ----------------------- + -- Polling Interface -- + ----------------------- + + type Unsigned is mod 2 ** 32; + + Counter : Unsigned := 0; + pragma Warnings (Off, Counter); + -- This counter is provided for convenience. It can be used in Poll to + -- perform periodic but not systematic operations. + + procedure Poll is separate; + -- The actual polling routine is separate, so that it can easily be + -- replaced with a target dependent version. + + -------------------------- + -- Code_Address_For_AAA -- + -------------------------- + + -- This function gives us the start of the PC range for addresses within + -- the exception unit itself. We hope that gigi/gcc keep all the procedures + -- in their original order. + + function Code_Address_For_AAA return System.Address is + begin + -- We are using a label instead of Code_Address_For_AAA'Address because + -- on some platforms the latter does not yield the address we want, but + -- the address of a stub or of a descriptor instead. This is the case at + -- least on PA-HPUX. + + <<Start_Of_AAA>> + return Start_Of_AAA'Address; + end Code_Address_For_AAA; + + ---------------- + -- Call_Chain -- + ---------------- + + procedure Call_Chain (Excep : EOA) is separate; + -- The actual Call_Chain routine is separate, so that it can easily + -- be dummied out when no exception traceback information is needed. + + ------------------- + -- EId_To_String -- + ------------------- + + function EId_To_String (X : Exception_Id) return String + renames Stream_Attributes.EId_To_String; + + ------------------ + -- EO_To_String -- + ------------------ + + -- We use the null string to represent the null occurrence, otherwise we + -- output the Untailored_Exception_Information string for the occurrence. + + function EO_To_String (X : Exception_Occurrence) return String + renames Stream_Attributes.EO_To_String; + + ------------------------ + -- Exception_Identity -- + ------------------------ + + function Exception_Identity + (X : Exception_Occurrence) return Exception_Id + is + begin + -- Note that the following test used to be here for the original + -- Ada 95 semantics, but these were modified by AI-241 to require + -- returning Null_Id instead of raising Constraint_Error. + + -- if X.Id = Null_Id then + -- raise Constraint_Error; + -- end if; + + return X.Id; + end Exception_Identity; + + --------------------------- + -- Exception_Information -- + --------------------------- + + function Exception_Information (X : Exception_Occurrence) return String is + begin + if X.Id = Null_Id then + raise Constraint_Error; + else + return Exception_Data.Exception_Information (X); + end if; + end Exception_Information; + + ----------------------- + -- Exception_Message -- + ----------------------- + + function Exception_Message (X : Exception_Occurrence) return String is + begin + if X.Id = Null_Id then + raise Constraint_Error; + else + return X.Msg (1 .. X.Msg_Length); + end if; + end Exception_Message; + + -------------------- + -- Exception_Name -- + -------------------- + + function Exception_Name (Id : Exception_Id) return String is + begin + if Id = null then + raise Constraint_Error; + else + return To_Ptr (Id.Full_Name) (1 .. Id.Name_Length - 1); + end if; + end Exception_Name; + + function Exception_Name (X : Exception_Occurrence) return String is + begin + return Exception_Name (X.Id); + end Exception_Name; + + --------------------------- + -- Exception_Name_Simple -- + --------------------------- + + function Exception_Name_Simple (X : Exception_Occurrence) return String is + Name : constant String := Exception_Name (X); + P : Natural; + + begin + P := Name'Length; + while P > 1 loop + exit when Name (P - 1) = '.'; + P := P - 1; + end loop; + + -- Return result making sure lower bound is 1 + + declare + subtype Rname is String (1 .. Name'Length - P + 1); + begin + return Rname (Name (P .. Name'Length)); + end; + end Exception_Name_Simple; + + -------------------- + -- Exception_Data -- + -------------------- + + package body Exception_Data is separate; + -- This package can be easily dummied out if we do not want the basic + -- support for exception messages (such as in Ada 83). + + --------------------------- + -- Exception_Propagation -- + --------------------------- + + package body Exception_Propagation is separate; + -- Depending on the actual exception mechanism used (front-end or + -- back-end based), the implementation will differ, which is why this + -- package is separated. + + ---------------------- + -- Exception_Traces -- + ---------------------- + + package body Exception_Traces is separate; + -- Depending on the underlying support for IO the implementation will + -- differ. Moreover we would like to dummy out this package in case we + -- do not want any exception tracing support. This is why this package + -- is separated. + + -------------------------------------- + -- Get_Exception_Machine_Occurrence -- + -------------------------------------- + + function Get_Exception_Machine_Occurrence + (X : Exception_Occurrence) return System.Address + is + begin + return X.Machine_Occurrence; + end Get_Exception_Machine_Occurrence; + + ----------- + -- Image -- + ----------- + + function Image (Index : Integer) return String is + Result : constant String := Integer'Image (Index); + begin + if Result (1) = ' ' then + return Result (2 .. Result'Last); + else + return Result; + end if; + end Image; + + ----------------------- + -- Stream Attributes -- + ----------------------- + + package body Stream_Attributes is separate; + -- This package can be easily dummied out if we do not want the + -- support for streaming Exception_Ids and Exception_Occurrences. + + ---------------------------- + -- Raise_Constraint_Error -- + ---------------------------- + + procedure Raise_Constraint_Error (File : System.Address; Line : Integer) is + begin + Raise_With_Location_And_Msg (Constraint_Error_Def'Access, File, Line); + end Raise_Constraint_Error; + + -------------------------------- + -- Raise_Constraint_Error_Msg -- + -------------------------------- + + procedure Raise_Constraint_Error_Msg + (File : System.Address; + Line : Integer; + Column : Integer; + Msg : System.Address) + is + begin + Raise_With_Location_And_Msg + (Constraint_Error_Def'Access, File, Line, Column, Msg); + end Raise_Constraint_Error_Msg; + + ------------------------- + -- Complete_Occurrence -- + ------------------------- + + procedure Complete_Occurrence (X : EOA) is + begin + -- Compute the backtrace for this occurrence if the corresponding + -- binder option has been set. Call_Chain takes care of the reraise + -- case. + + -- ??? Using Call_Chain here means we are going to walk up the stack + -- once only for backtracing purposes before doing it again for the + -- propagation per se. + + -- The first inspection is much lighter, though, as it only requires + -- partial unwinding of each frame. Additionally, although we could use + -- the personality routine to record the addresses while propagating, + -- this method has two drawbacks: + + -- 1) the trace is incomplete if the exception is handled since we + -- don't walk past the frame with the handler, + + -- and + + -- 2) we would miss the frames for which our personality routine is not + -- called, e.g. if C or C++ calls are on the way. + + Call_Chain (X); + + -- Notify the debugger + Debug_Raise_Exception + (E => SSL.Exception_Data_Ptr (X.Id), + Message => X.Msg (1 .. X.Msg_Length)); + end Complete_Occurrence; + + --------------------------------------- + -- Complete_And_Propagate_Occurrence -- + --------------------------------------- + + procedure Complete_And_Propagate_Occurrence (X : EOA) is + begin + Complete_Occurrence (X); + Exception_Propagation.Propagate_Exception (X); + end Complete_And_Propagate_Occurrence; + + --------------------- + -- Raise_Exception -- + --------------------- + + procedure Raise_Exception + (E : Exception_Id; + Message : String := "") + is + EF : Exception_Id := E; + begin + -- Raise CE if E = Null_ID (AI-446) + + if E = null then + EF := Constraint_Error'Identity; + end if; + + -- Go ahead and raise appropriate exception + + Raise_Exception_Always (EF, Message); + end Raise_Exception; + + ---------------------------- + -- Raise_Exception_Always -- + ---------------------------- + + procedure Raise_Exception_Always + (E : Exception_Id; + Message : String := "") + is + X : constant EOA := Exception_Propagation.Allocate_Occurrence; + + begin + Exception_Data.Set_Exception_Msg (X, E, Message); + + if not ZCX_By_Default then + Abort_Defer.all; + end if; + + Complete_And_Propagate_Occurrence (X); + end Raise_Exception_Always; + + ------------------------------ + -- Raise_Exception_No_Defer -- + ------------------------------ + + procedure Raise_Exception_No_Defer + (E : Exception_Id; + Message : String := "") + is + X : constant EOA := Exception_Propagation.Allocate_Occurrence; + + begin + Exception_Data.Set_Exception_Msg (X, E, Message); + + -- Do not call Abort_Defer.all, as specified by the spec + + Complete_And_Propagate_Occurrence (X); + end Raise_Exception_No_Defer; + + ------------------------------------- + -- Raise_From_Controlled_Operation -- + ------------------------------------- + + procedure Raise_From_Controlled_Operation + (X : Ada.Exceptions.Exception_Occurrence) + is + Prefix : constant String := "adjust/finalize raised "; + Orig_Msg : constant String := Exception_Message (X); + Orig_Prefix_Length : constant Natural := + Integer'Min (Prefix'Length, Orig_Msg'Length); + + Orig_Prefix : String renames + Orig_Msg (Orig_Msg'First .. Orig_Msg'First + Orig_Prefix_Length - 1); + + begin + -- Message already has the proper prefix, just re-raise + + if Orig_Prefix = Prefix then + Raise_Exception_No_Defer + (E => Program_Error'Identity, + Message => Orig_Msg); + + else + declare + New_Msg : constant String := Prefix & Exception_Name (X); + + begin + -- No message present, just provide our own + + if Orig_Msg = "" then + Raise_Exception_No_Defer + (E => Program_Error'Identity, + Message => New_Msg); + + -- Message present, add informational prefix + + else + Raise_Exception_No_Defer + (E => Program_Error'Identity, + Message => New_Msg & ": " & Orig_Msg); + end if; + end; + end if; + end Raise_From_Controlled_Operation; + + ------------------------------------------- + -- Create_Occurrence_From_Signal_Handler -- + ------------------------------------------- + + function Create_Occurrence_From_Signal_Handler + (E : Exception_Id; + M : System.Address) return EOA + is + X : constant EOA := Exception_Propagation.Allocate_Occurrence; + + begin + Exception_Data.Set_Exception_C_Msg (X, E, M); + + if not ZCX_By_Default then + Abort_Defer.all; + end if; + + Complete_Occurrence (X); + return X; + end Create_Occurrence_From_Signal_Handler; + + --------------------------------------------------- + -- Create_Machine_Occurrence_From_Signal_Handler -- + --------------------------------------------------- + + function Create_Machine_Occurrence_From_Signal_Handler + (E : Exception_Id; + M : System.Address) return System.Address + is + begin + return Create_Occurrence_From_Signal_Handler (E, M).Machine_Occurrence; + end Create_Machine_Occurrence_From_Signal_Handler; + + ------------------------------- + -- Raise_From_Signal_Handler -- + ------------------------------- + + procedure Raise_From_Signal_Handler + (E : Exception_Id; + M : System.Address) + is + begin + Exception_Propagation.Propagate_Exception + (Create_Occurrence_From_Signal_Handler (E, M)); + end Raise_From_Signal_Handler; + + ------------------------- + -- Raise_Program_Error -- + ------------------------- + + procedure Raise_Program_Error + (File : System.Address; + Line : Integer) + is + begin + Raise_With_Location_And_Msg (Program_Error_Def'Access, File, Line); + end Raise_Program_Error; + + ----------------------------- + -- Raise_Program_Error_Msg -- + ----------------------------- + + procedure Raise_Program_Error_Msg + (File : System.Address; + Line : Integer; + Msg : System.Address) + is + begin + Raise_With_Location_And_Msg + (Program_Error_Def'Access, File, Line, M => Msg); + end Raise_Program_Error_Msg; + + ------------------------- + -- Raise_Storage_Error -- + ------------------------- + + procedure Raise_Storage_Error + (File : System.Address; + Line : Integer) + is + begin + Raise_With_Location_And_Msg (Storage_Error_Def'Access, File, Line); + end Raise_Storage_Error; + + ----------------------------- + -- Raise_Storage_Error_Msg -- + ----------------------------- + + procedure Raise_Storage_Error_Msg + (File : System.Address; + Line : Integer; + Msg : System.Address) + is + begin + Raise_With_Location_And_Msg + (Storage_Error_Def'Access, File, Line, M => Msg); + end Raise_Storage_Error_Msg; + + --------------------------------- + -- Raise_With_Location_And_Msg -- + --------------------------------- + + procedure Raise_With_Location_And_Msg + (E : Exception_Id; + F : System.Address; + L : Integer; + C : Integer := 0; + M : System.Address := System.Null_Address) + is + X : constant EOA := Exception_Propagation.Allocate_Occurrence; + begin + Exception_Data.Set_Exception_C_Msg (X, E, F, L, C, M); + + if not ZCX_By_Default then + Abort_Defer.all; + end if; + + Complete_And_Propagate_Occurrence (X); + end Raise_With_Location_And_Msg; + + -------------------- + -- Raise_With_Msg -- + -------------------- + + procedure Raise_With_Msg (E : Exception_Id) is + Excep : constant EOA := Exception_Propagation.Allocate_Occurrence; + Ex : constant Exception_Occurrence_Access := Get_Current_Excep.all; + begin + Excep.Exception_Raised := False; + Excep.Id := E; + Excep.Num_Tracebacks := 0; + Excep.Pid := Local_Partition_ID; + + -- Copy the message from the current exception + -- Change the interface to be called with an occurrence ??? + + Excep.Msg_Length := Ex.Msg_Length; + Excep.Msg (1 .. Excep.Msg_Length) := Ex.Msg (1 .. Ex.Msg_Length); + + -- The following is a common pattern, should be abstracted + -- into a procedure call ??? + + if not ZCX_By_Default then + Abort_Defer.all; + end if; + + Complete_And_Propagate_Occurrence (Excep); + end Raise_With_Msg; + + ----------------------------------------- + -- Calls to Run-Time Check Subprograms -- + ----------------------------------------- + + procedure Rcheck_CE_Access_Check + (File : System.Address; Line : Integer) + is + begin + Raise_Constraint_Error_Msg (File, Line, 0, Rmsg_00'Address); + end Rcheck_CE_Access_Check; + + procedure Rcheck_CE_Null_Access_Parameter + (File : System.Address; Line : Integer) + is + begin + Raise_Constraint_Error_Msg (File, Line, 0, Rmsg_01'Address); + end Rcheck_CE_Null_Access_Parameter; + + procedure Rcheck_CE_Discriminant_Check + (File : System.Address; Line : Integer) + is + begin + Raise_Constraint_Error_Msg (File, Line, 0, Rmsg_02'Address); + end Rcheck_CE_Discriminant_Check; + + procedure Rcheck_CE_Divide_By_Zero + (File : System.Address; Line : Integer) + is + begin + Raise_Constraint_Error_Msg (File, Line, 0, Rmsg_03'Address); + end Rcheck_CE_Divide_By_Zero; + + procedure Rcheck_CE_Explicit_Raise + (File : System.Address; Line : Integer) + is + begin + Raise_Constraint_Error_Msg (File, Line, 0, Rmsg_04'Address); + end Rcheck_CE_Explicit_Raise; + + procedure Rcheck_CE_Index_Check + (File : System.Address; Line : Integer) + is + begin + Raise_Constraint_Error_Msg (File, Line, 0, Rmsg_05'Address); + end Rcheck_CE_Index_Check; + + procedure Rcheck_CE_Invalid_Data + (File : System.Address; Line : Integer) + is + begin + Raise_Constraint_Error_Msg (File, Line, 0, Rmsg_06'Address); + end Rcheck_CE_Invalid_Data; + + procedure Rcheck_CE_Length_Check + (File : System.Address; Line : Integer) + is + begin + Raise_Constraint_Error_Msg (File, Line, 0, Rmsg_07'Address); + end Rcheck_CE_Length_Check; + + procedure Rcheck_CE_Null_Exception_Id + (File : System.Address; Line : Integer) + is + begin + Raise_Constraint_Error_Msg (File, Line, 0, Rmsg_08'Address); + end Rcheck_CE_Null_Exception_Id; + + procedure Rcheck_CE_Null_Not_Allowed + (File : System.Address; Line : Integer) + is + begin + Raise_Constraint_Error_Msg (File, Line, 0, Rmsg_09'Address); + end Rcheck_CE_Null_Not_Allowed; + + procedure Rcheck_CE_Overflow_Check + (File : System.Address; Line : Integer) + is + begin + Raise_Constraint_Error_Msg (File, Line, 0, Rmsg_10'Address); + end Rcheck_CE_Overflow_Check; + + procedure Rcheck_CE_Partition_Check + (File : System.Address; Line : Integer) + is + begin + Raise_Constraint_Error_Msg (File, Line, 0, Rmsg_11'Address); + end Rcheck_CE_Partition_Check; + + procedure Rcheck_CE_Range_Check + (File : System.Address; Line : Integer) + is + begin + Raise_Constraint_Error_Msg (File, Line, 0, Rmsg_12'Address); + end Rcheck_CE_Range_Check; + + procedure Rcheck_CE_Tag_Check + (File : System.Address; Line : Integer) + is + begin + Raise_Constraint_Error_Msg (File, Line, 0, Rmsg_13'Address); + end Rcheck_CE_Tag_Check; + + procedure Rcheck_PE_Access_Before_Elaboration + (File : System.Address; Line : Integer) + is + begin + Raise_Program_Error_Msg (File, Line, Rmsg_14'Address); + end Rcheck_PE_Access_Before_Elaboration; + + procedure Rcheck_PE_Accessibility_Check + (File : System.Address; Line : Integer) + is + begin + Raise_Program_Error_Msg (File, Line, Rmsg_15'Address); + end Rcheck_PE_Accessibility_Check; + + procedure Rcheck_PE_Address_Of_Intrinsic + (File : System.Address; Line : Integer) + is + begin + Raise_Program_Error_Msg (File, Line, Rmsg_16'Address); + end Rcheck_PE_Address_Of_Intrinsic; + + procedure Rcheck_PE_Aliased_Parameters + (File : System.Address; Line : Integer) + is + begin + Raise_Program_Error_Msg (File, Line, Rmsg_17'Address); + end Rcheck_PE_Aliased_Parameters; + + procedure Rcheck_PE_All_Guards_Closed + (File : System.Address; Line : Integer) + is + begin + Raise_Program_Error_Msg (File, Line, Rmsg_18'Address); + end Rcheck_PE_All_Guards_Closed; + + procedure Rcheck_PE_Bad_Predicated_Generic_Type + (File : System.Address; Line : Integer) + is + begin + Raise_Program_Error_Msg (File, Line, Rmsg_19'Address); + end Rcheck_PE_Bad_Predicated_Generic_Type; + + procedure Rcheck_PE_Current_Task_In_Entry_Body + (File : System.Address; Line : Integer) + is + begin + Raise_Program_Error_Msg (File, Line, Rmsg_20'Address); + end Rcheck_PE_Current_Task_In_Entry_Body; + + procedure Rcheck_PE_Duplicated_Entry_Address + (File : System.Address; Line : Integer) + is + begin + Raise_Program_Error_Msg (File, Line, Rmsg_21'Address); + end Rcheck_PE_Duplicated_Entry_Address; + + procedure Rcheck_PE_Explicit_Raise + (File : System.Address; Line : Integer) + is + begin + Raise_Program_Error_Msg (File, Line, Rmsg_22'Address); + end Rcheck_PE_Explicit_Raise; + + procedure Rcheck_PE_Implicit_Return + (File : System.Address; Line : Integer) + is + begin + Raise_Program_Error_Msg (File, Line, Rmsg_24'Address); + end Rcheck_PE_Implicit_Return; + + procedure Rcheck_PE_Misaligned_Address_Value + (File : System.Address; Line : Integer) + is + begin + Raise_Program_Error_Msg (File, Line, Rmsg_25'Address); + end Rcheck_PE_Misaligned_Address_Value; + + procedure Rcheck_PE_Missing_Return + (File : System.Address; Line : Integer) + is + begin + Raise_Program_Error_Msg (File, Line, Rmsg_26'Address); + end Rcheck_PE_Missing_Return; + + procedure Rcheck_PE_Non_Transportable_Actual + (File : System.Address; Line : Integer) + is + begin + Raise_Program_Error_Msg (File, Line, Rmsg_31'Address); + end Rcheck_PE_Non_Transportable_Actual; + + procedure Rcheck_PE_Overlaid_Controlled_Object + (File : System.Address; Line : Integer) + is + begin + Raise_Program_Error_Msg (File, Line, Rmsg_27'Address); + end Rcheck_PE_Overlaid_Controlled_Object; + + procedure Rcheck_PE_Potentially_Blocking_Operation + (File : System.Address; Line : Integer) + is + begin + Raise_Program_Error_Msg (File, Line, Rmsg_28'Address); + end Rcheck_PE_Potentially_Blocking_Operation; + + procedure Rcheck_PE_Stream_Operation_Not_Allowed + (File : System.Address; Line : Integer) + is + begin + Raise_Program_Error_Msg (File, Line, Rmsg_36'Address); + end Rcheck_PE_Stream_Operation_Not_Allowed; + + procedure Rcheck_PE_Stubbed_Subprogram_Called + (File : System.Address; Line : Integer) + is + begin + Raise_Program_Error_Msg (File, Line, Rmsg_29'Address); + end Rcheck_PE_Stubbed_Subprogram_Called; + + procedure Rcheck_PE_Unchecked_Union_Restriction + (File : System.Address; Line : Integer) + is + begin + Raise_Program_Error_Msg (File, Line, Rmsg_30'Address); + end Rcheck_PE_Unchecked_Union_Restriction; + + procedure Rcheck_SE_Empty_Storage_Pool + (File : System.Address; Line : Integer) + is + begin + Raise_Storage_Error_Msg (File, Line, Rmsg_32'Address); + end Rcheck_SE_Empty_Storage_Pool; + + procedure Rcheck_SE_Explicit_Raise + (File : System.Address; Line : Integer) + is + begin + Raise_Storage_Error_Msg (File, Line, Rmsg_33'Address); + end Rcheck_SE_Explicit_Raise; + + procedure Rcheck_SE_Infinite_Recursion + (File : System.Address; Line : Integer) + is + begin + Raise_Storage_Error_Msg (File, Line, Rmsg_34'Address); + end Rcheck_SE_Infinite_Recursion; + + procedure Rcheck_SE_Object_Too_Large + (File : System.Address; Line : Integer) + is + begin + Raise_Storage_Error_Msg (File, Line, Rmsg_35'Address); + end Rcheck_SE_Object_Too_Large; + + procedure Rcheck_CE_Access_Check_Ext + (File : System.Address; Line, Column : Integer) + is + begin + Raise_Constraint_Error_Msg (File, Line, Column, Rmsg_00'Address); + end Rcheck_CE_Access_Check_Ext; + + procedure Rcheck_CE_Index_Check_Ext + (File : System.Address; Line, Column, Index, First, Last : Integer) + is + Msg : constant String := + Rmsg_05 (Rmsg_05'First .. Rmsg_05'Last - 1) & ASCII.LF + & "index " & Image (Index) & " not in " & Image (First) + & ".." & Image (Last) & ASCII.NUL; + begin + Raise_Constraint_Error_Msg (File, Line, Column, Msg'Address); + end Rcheck_CE_Index_Check_Ext; + + procedure Rcheck_CE_Invalid_Data_Ext + (File : System.Address; Line, Column, Index, First, Last : Integer) + is + Msg : constant String := + Rmsg_06 (Rmsg_06'First .. Rmsg_06'Last - 1) & ASCII.LF + & "value " & Image (Index) & " not in " & Image (First) + & ".." & Image (Last) & ASCII.NUL; + begin + Raise_Constraint_Error_Msg (File, Line, Column, Msg'Address); + end Rcheck_CE_Invalid_Data_Ext; + + procedure Rcheck_CE_Range_Check_Ext + (File : System.Address; Line, Column, Index, First, Last : Integer) + is + Msg : constant String := + Rmsg_12 (Rmsg_12'First .. Rmsg_12'Last - 1) & ASCII.LF + & "value " & Image (Index) & " not in " & Image (First) + & ".." & Image (Last) & ASCII.NUL; + begin + Raise_Constraint_Error_Msg (File, Line, Column, Msg'Address); + end Rcheck_CE_Range_Check_Ext; + + procedure Rcheck_PE_Finalize_Raised_Exception + (File : System.Address; Line : Integer) + is + X : constant EOA := Exception_Propagation.Allocate_Occurrence; + + begin + -- This is "finalize/adjust raised exception". This subprogram is always + -- called with abort deferred, unlike all other Rcheck_* subprograms, it + -- needs to call Raise_Exception_No_Defer. + + -- This is consistent with Raise_From_Controlled_Operation + + Exception_Data.Set_Exception_C_Msg + (X, Program_Error_Def'Access, File, Line, 0, Rmsg_23'Address); + Complete_And_Propagate_Occurrence (X); + end Rcheck_PE_Finalize_Raised_Exception; + + ------------- + -- Reraise -- + ------------- + + procedure Reraise is + Excep : constant EOA := Exception_Propagation.Allocate_Occurrence; + Saved_MO : constant System.Address := Excep.Machine_Occurrence; + + begin + if not ZCX_By_Default then + Abort_Defer.all; + end if; + + Save_Occurrence (Excep.all, Get_Current_Excep.all.all); + Excep.Machine_Occurrence := Saved_MO; + Complete_And_Propagate_Occurrence (Excep); + end Reraise; + + -------------------------------------- + -- Reraise_Library_Exception_If_Any -- + -------------------------------------- + + procedure Reraise_Library_Exception_If_Any is + LE : Exception_Occurrence; + + begin + if Library_Exception_Set then + LE := Library_Exception; + + if LE.Id = Null_Id then + Raise_Exception_No_Defer + (E => Program_Error'Identity, + Message => "finalize/adjust raised exception"); + else + Raise_From_Controlled_Operation (LE); + end if; + end if; + end Reraise_Library_Exception_If_Any; + + ------------------------ + -- Reraise_Occurrence -- + ------------------------ + + procedure Reraise_Occurrence (X : Exception_Occurrence) is + begin + if X.Id = null then + return; + else + Reraise_Occurrence_Always (X); + end if; + end Reraise_Occurrence; + + ------------------------------- + -- Reraise_Occurrence_Always -- + ------------------------------- + + procedure Reraise_Occurrence_Always (X : Exception_Occurrence) is + begin + if not ZCX_By_Default then + Abort_Defer.all; + end if; + + Reraise_Occurrence_No_Defer (X); + end Reraise_Occurrence_Always; + + --------------------------------- + -- Reraise_Occurrence_No_Defer -- + --------------------------------- + + procedure Reraise_Occurrence_No_Defer (X : Exception_Occurrence) is + Excep : constant EOA := Exception_Propagation.Allocate_Occurrence; + Saved_MO : constant System.Address := Excep.Machine_Occurrence; + begin + Save_Occurrence (Excep.all, X); + Excep.Machine_Occurrence := Saved_MO; + Complete_And_Propagate_Occurrence (Excep); + end Reraise_Occurrence_No_Defer; + + --------------------- + -- Save_Occurrence -- + --------------------- + + procedure Save_Occurrence + (Target : out Exception_Occurrence; + Source : Exception_Occurrence) + is + begin + -- As the machine occurrence might be a data that must be finalized + -- (outside any Ada mechanism), do not copy it + + Target.Id := Source.Id; + Target.Machine_Occurrence := System.Null_Address; + Target.Msg_Length := Source.Msg_Length; + Target.Num_Tracebacks := Source.Num_Tracebacks; + Target.Pid := Source.Pid; + + Target.Msg (1 .. Target.Msg_Length) := + Source.Msg (1 .. Target.Msg_Length); + + Target.Tracebacks (1 .. Target.Num_Tracebacks) := + Source.Tracebacks (1 .. Target.Num_Tracebacks); + end Save_Occurrence; + + function Save_Occurrence (Source : Exception_Occurrence) return EOA is + Target : constant EOA := new Exception_Occurrence; + begin + Save_Occurrence (Target.all, Source); + return Target; + end Save_Occurrence; + + ------------------- + -- String_To_EId -- + ------------------- + + function String_To_EId (S : String) return Exception_Id + renames Stream_Attributes.String_To_EId; + + ------------------ + -- String_To_EO -- + ------------------ + + function String_To_EO (S : String) return Exception_Occurrence + renames Stream_Attributes.String_To_EO; + + --------------- + -- To_Stderr -- + --------------- + + procedure To_Stderr (C : Character) is + procedure Put_Char_Stderr (C : Character); + pragma Import (C, Put_Char_Stderr, "put_char_stderr"); + begin + Put_Char_Stderr (C); + end To_Stderr; + + procedure To_Stderr (S : String) is + begin + for J in S'Range loop + if S (J) /= ASCII.CR then + To_Stderr (S (J)); + end if; + end loop; + end To_Stderr; + + ------------------------- + -- Transfer_Occurrence -- + ------------------------- + + procedure Transfer_Occurrence + (Target : Exception_Occurrence_Access; + Source : Exception_Occurrence) + is + begin + Save_Occurrence (Target.all, Source); + end Transfer_Occurrence; + + ------------------------ + -- Triggered_By_Abort -- + ------------------------ + + function Triggered_By_Abort return Boolean is + Ex : constant Exception_Occurrence_Access := Get_Current_Excep.all; + begin + return Ex /= null + and then Exception_Identity (Ex.all) = Standard'Abort_Signal'Identity; + end Triggered_By_Abort; + + ------------------------- + -- Wide_Exception_Name -- + ------------------------- + + WC_Encoding : Character; + pragma Import (C, WC_Encoding, "__gl_wc_encoding"); + -- Encoding method for source, as exported by binder + + function Wide_Exception_Name + (Id : Exception_Id) return Wide_String + is + S : constant String := Exception_Name (Id); + W : Wide_String (1 .. S'Length); + L : Natural; + begin + String_To_Wide_String + (S, W, L, Get_WC_Encoding_Method (WC_Encoding)); + return W (1 .. L); + end Wide_Exception_Name; + + function Wide_Exception_Name + (X : Exception_Occurrence) return Wide_String + is + S : constant String := Exception_Name (X); + W : Wide_String (1 .. S'Length); + L : Natural; + begin + String_To_Wide_String + (S, W, L, Get_WC_Encoding_Method (WC_Encoding)); + return W (1 .. L); + end Wide_Exception_Name; + + ---------------------------- + -- Wide_Wide_Exception_Name -- + ----------------------------- + + function Wide_Wide_Exception_Name + (Id : Exception_Id) return Wide_Wide_String + is + S : constant String := Exception_Name (Id); + W : Wide_Wide_String (1 .. S'Length); + L : Natural; + begin + String_To_Wide_Wide_String + (S, W, L, Get_WC_Encoding_Method (WC_Encoding)); + return W (1 .. L); + end Wide_Wide_Exception_Name; + + function Wide_Wide_Exception_Name + (X : Exception_Occurrence) return Wide_Wide_String + is + S : constant String := Exception_Name (X); + W : Wide_Wide_String (1 .. S'Length); + L : Natural; + begin + String_To_Wide_Wide_String + (S, W, L, Get_WC_Encoding_Method (WC_Encoding)); + return W (1 .. L); + end Wide_Wide_Exception_Name; + + -------------------------- + -- Code_Address_For_ZZZ -- + -------------------------- + + -- This function gives us the end of the PC range for addresses + -- within the exception unit itself. We hope that gigi/gcc keeps all the + -- procedures in their original order. + + function Code_Address_For_ZZZ return System.Address is + begin + <<Start_Of_ZZZ>> + return Start_Of_ZZZ'Address; + end Code_Address_For_ZZZ; + +end Ada.Exceptions; |