Bug#742590: gnat-4.9: FTBFS on powerpc, Storage_Error in two source files
Package: src:gnat-4.9 Followup-For: Bug #742590 At least three failures affect build/gcc/ada/rts-static-zcx. A 54 compiler segfault when optimization is asked. B 106 warnings (= errors with -gnatg), mostly about conversions between types with different sizes. C 46 errors caused by the same problem: s-osinte.ads:590:07: size for Address too small, minimum allowed is 64 Investigating the latter, I have found a bug in build/gcc/xgcc. Standard'Address_Size should match System.Address'Size but does not: # debian/rules binary-arch ... fails # cd build/gcc/ada/rts-static-zcx # cat hello.ads EOF with System; package Hello is Standard_Address_Size : constant Integer := Standard'Address_Size; System_Address_Size : constant Integer := System.Address'Size; end Hello; EOF # ../../xgcc -B../.. -c -gnatpg -nostdinc hello.ads -gnatG | grep address_size hello__standard_address_size : constant integer := 32; hello__system_address_size : constant integer := 64; In case this helps others, I attach a diff listing which file is affected by each problem, and preventing the effects to abort the compilation. --- old.in.mk 2014-03-29 11:18:53.576474900 +0100 +++ new.in.mk 2014-03-29 15:57:34.287388432 +0100 @@ -2738,23 +2738,20 @@ # optimization. s-traceb.o : s-traceb.adb s-traceb.ads - $(CC) -c $(ALL_ADAFLAGS) $(FORCE_DEBUG_ADAFLAGS) \ - $(NO_SIBLING_ADAFLAGS) $(ADA_INCLUDES) $ $(OUTPUT_OPTION) +s-traceb.o : ALL_ADAFLAGS += $(FORCE_DEBUG_ADAFLAGS) $(NO_SIBLING_ADAFLAGS) # force debugging information on s-tasdeb.o so that it is always # possible to set conditional breakpoints on tasks. s-tasdeb.o : s-tasdeb.adb s-tasdeb.ads - $(CC) -c $(ALL_ADAFLAGS) $(FORCE_DEBUG_ADAFLAGS) -O0 $(ADA_INCLUDES) \ - $ $(OUTPUT_OPTION) +s-tasdeb.o : ALL_ADAFLAGS += $(FORCE_DEBUG_ADAFLAGS) -O0 # force debugging information on s-vaflop.o so that it is always # possible to call the VAX float debug print routines. # force at least -O so that the inline assembly works. s-vaflop.o : s-vaflop.adb s-vaflop.ads - $(CC) -c -O $(ALL_ADAFLAGS) $(FORCE_DEBUG_ADAFLAGS) $(ADA_INCLUDES) \ - $ $(OUTPUT_OPTION) +s-vaflop.o : ALL_ADAFLAGS += $(FORCE_DEBUG_ADAFLAGS) # force no function reordering on a-except.o because of the exclusion bounds # mechanism (see the source file for more detailed information). @@ -2763,30 +2760,27 @@ # use -O1 otherwise gdb isn't able to get a full backtrace on mips targets. a-except.o : a-except.adb a-except.ads - $(CC) -c $(ALL_ADAFLAGS) $(FORCE_DEBUG_ADAFLAGS) -O1 -fno-inline \ - $(NO_REORDER_ADAFLAGS) $(ADA_INCLUDES) $ $(OUTPUT_OPTION) +a-except.o : ALL_ADAFLAGS += $(FORCE_DEBUG_ADAFLAGS) -O1 -fno-inline \ + $(NO_REORDER_ADAFLAGS) # compile s-excdeb.o without optimization and with debug info to let the # debugger set breakpoints and inspect subprogram parameters on exception # related events. s-excdeb.o : s-excdeb.adb s-excdeb.ads s-except.ads - $(CC) -c $(ALL_ADAFLAGS) $(FORCE_DEBUG_ADAFLAGS) -O0 $(ADA_INCLUDES) \ - $ $(OUTPUT_OPTION) +s-excdeb.o : ALL_ADAFLAGS += $(FORCE_DEBUG_ADAFLAGS) -O0 # force debugging information on s-assert.o so that it is always # possible to set breakpoint on assert failures. s-assert.o : s-assert.adb s-assert.ads - $(CC) -c $(ALL_ADAFLAGS) $(FORCE_DEBUG_ADAFLAGS) $(ADA_INCLUDES) \ - $ $(OUTPUT_OPTION) +s-assert.o : ALL_ADAFLAGS += $(FORCE_DEBUG_ADAFLAGS) # force debugging information on a-tags.o so that the debugger can find # the description of Ada.Tags.Type_Specific_Data. a-tags.o : a-tags.adb a-tags.ads - $(CC) -c $(ALL_ADAFLAGS) $(FORCE_DEBUG_ADAFLAGS) $(ADA_INCLUDES) \ - $ $(OUTPUT_OPTION) +a-tags.o : ALL_ADAFLAGS += $(FORCE_DEBUG_ADAFLAGS) # need to keep the frame pointer in this file to pop the stack properly on # some targets. @@ -2794,6 +2788,56 @@ $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ADA_CFLAGS) $(ALL_CPPFLAGS) \ $(INCLUDES) -fno-omit-frame-pointer $ $(OUTPUT_OPTION) +# If kept, all this should be restricted to powerpc or powerpc%. +# Avoid any optimization otherwise gnat1 crashes on powerpc. + +a-direct.o a-except.o a-finali.o a-stream.o a-strunb.o a-ststio.o \ +a-stwima.o a-stwiun.o a-stzmap.o a-stzunb.o a-synbar.o a-sytaco.o \ +a-tasatt.o a-taside.o a-taster.o a-textio.o a-witeio.o a-ztexio.o \ +g-awk.og-catiio.o g-cgideb.o g-debpoo.o g-expect.o g-exptty.o \ +g-pehage.o g-semaph.o g-sercom.o g-signal.o g-socket.o g-spipat.o \ +g-sptabo.o g-sptain.o g-sptavs.o g-strspl.o g-thread.o g-wistsp.o \ +g-zstspl.o s-asthan.o s-chepoo.o s-direio.o s-ficobl.o s-fileio.o \ +s-finmas.o s-finroo.o s-parint.o s-pooglo.o s-pooloc.o s-poosiz.o \ +s-regexp.o s-rpc.os-sequio.o s-shasto.o s-stopoo.o s-stposu.o \ + : ALL_ADAFLAGS += -O0 + +# Warnings are treated as errors because of -gnatg. +# Disable this behaviour on some files to inspect powerpc problems. + +a-interr.o a-intnam.o a-intsig.o a-reatim.o a-retide.o a-rttiev.o \ +a-tags.o
Bug#742590: gnat-4.9: FTBFS on powerpc, Storage_Error in two source files
Package: src:gnat-4.9 Followup-For: Bug #742590 Control: retitle -1 FTBFS on powerpc, wrong System.Address'Size Control: tags -1 + pending Revision b1ec15211bb78fd840cc96b500d13e5f1531f9b8 fixes this issue. In order to help next newcomer to modify flags for specific sources, please consider applying or forwarding the attached diff. Two points deserve review: * debian/ada-symbolic-tracebacks.diff adds this line: +convert_addresses.o : convert_addresses.c I believe this is redundant and can safely be removed. * the recipe for tracebak.o inserts -fno-omit-frame-pointer after INCLUDES, and my diff inserts it after ALL_COMPILERFLAGS. I believe that flags ordering does not matter here. --- a/src/gcc/ada/gcc-interface/Makefile.in 2014-03-29 22:52:13.090202118 +0100 +++ b/src/gcc/ada/gcc-interface/Makefile.in 2014-03-30 00:14:48.402774180 +0100 @@ -290,21 +290,26 @@ # Avoid a lot of time thinking about remaking Makefile.in and *.def. .SUFFIXES: .in .def -# Say how to compile Ada programs. -.SUFFIXES: .ada .adb .ads .asm - +# Generic compilation recipes. +# Flags or prerequisites for specific sources are added later. # Always use -I$(srcdir)/config when compiling. -.asm.o: + +# How to build assembly sources. +%.o: %.asm $(CC) -c -x assembler $ $(OUTPUT_OPTION) -.c.o: +# How to build C sources. The header, if any, is a prerequisite. +%.o: %.c %.h + $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ADA_CFLAGS) $(ALL_CPPFLAGS) \ + $(INCLUDES) $ $(OUTPUT_OPTION) +%.o: %.c $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ADA_CFLAGS) $(ALL_CPPFLAGS) \ $(INCLUDES) $ $(OUTPUT_OPTION) -.adb.o: +# How to build Ada sources. The body, if any, is a prerequisite. +%.o: %.adb %.ads $(CC) -c $(ALL_ADAFLAGS) $(ADA_INCLUDES) $ $(OUTPUT_OPTION) - -.ads.o: +%.o: %.ads $(CC) -c $(ALL_ADAFLAGS) $(ADA_INCLUDES) $ $(OUTPUT_OPTION) # how to regenerate this file @@ -2736,111 +2741,55 @@ # force no sibling call optimization on s-traceb.o so the number of stack # frames to be skipped when computing a call chain is not modified by # optimization. - -s-traceb.o : s-traceb.adb s-traceb.ads - $(CC) -c $(ALL_ADAFLAGS) $(FORCE_DEBUG_ADAFLAGS) \ - $(NO_SIBLING_ADAFLAGS) $(ADA_INCLUDES) $ $(OUTPUT_OPTION) +s-straceb.o: ALL_ADAFLAGS += $(FORCE_DEBUG_ADAFLAGS) $(NO_SIBLING_ADAFLAGS) # force debugging information on s-tasdeb.o so that it is always # possible to set conditional breakpoints on tasks. - -s-tasdeb.o : s-tasdeb.adb s-tasdeb.ads - $(CC) -c $(ALL_ADAFLAGS) $(FORCE_DEBUG_ADAFLAGS) -O0 $(ADA_INCLUDES) \ - $ $(OUTPUT_OPTION) +s-tasdeb.o: ALL_ADAFLAGS += $(FORCE_DEBUG_ADAFLAGS) -O0 # force debugging information on s-vaflop.o so that it is always # possible to call the VAX float debug print routines. # force at least -O so that the inline assembly works. - -s-vaflop.o : s-vaflop.adb s-vaflop.ads - $(CC) -c -O $(ALL_ADAFLAGS) $(FORCE_DEBUG_ADAFLAGS) $(ADA_INCLUDES) \ - $ $(OUTPUT_OPTION) +s-vaflop.o: ALL_ADAFLAGS += $(FORCE_DEBUG_ADAFLAGS) # force no function reordering on a-except.o because of the exclusion bounds # mechanism (see the source file for more detailed information). # force debugging information on a-except.o so that it is always # possible to set conditional breakpoints on exceptions. # use -O1 otherwise gdb isn't able to get a full backtrace on mips targets. - -a-except.o : a-except.adb a-except.ads - $(CC) -c $(ALL_ADAFLAGS) $(FORCE_DEBUG_ADAFLAGS) -O1 -fno-inline \ - $(NO_REORDER_ADAFLAGS) $(ADA_INCLUDES) $ $(OUTPUT_OPTION) +a-except.o: ALL_ADAFLAGS += $(FORCE_DEBUG_ADAFLAGS) -O1 -fno-inline \ +$(NO_REORDER_ADAFLAGS) # compile s-excdeb.o without optimization and with debug info to let the # debugger set breakpoints and inspect subprogram parameters on exception # related events. - -s-excdeb.o : s-excdeb.adb s-excdeb.ads s-except.ads - $(CC) -c $(ALL_ADAFLAGS) $(FORCE_DEBUG_ADAFLAGS) -O0 $(ADA_INCLUDES) \ - $ $(OUTPUT_OPTION) +s-excdeb.o: s-except.ads +s-excdeb.o: ALL_ADAFLAGS += $(FORCE_DEBUG_ADAFLAGS) -O0 # force debugging information on s-assert.o so that it is always # possible to set breakpoint on assert failures. - -s-assert.o : s-assert.adb s-assert.ads - $(CC) -c $(ALL_ADAFLAGS) $(FORCE_DEBUG_ADAFLAGS) $(ADA_INCLUDES) \ - $ $(OUTPUT_OPTION) +s-assert.o: ALL_ADAFLAGS += $(FORCE_DEBUG_ADAFLAGS) # force debugging information on a-tags.o so that the debugger can find # the description of Ada.Tags.Type_Specific_Data. - -a-tags.o : a-tags.adb a-tags.ads - $(CC) -c $(ALL_ADAFLAGS) $(FORCE_DEBUG_ADAFLAGS) $(ADA_INCLUDES) \ - $ $(OUTPUT_OPTION) +a-tags.o: ALL_ADAFLAGS += $(FORCE_DEBUG_ADAFLAGS) # need to keep the frame pointer in this file to pop the stack properly on # some targets. -tracebak.o : tracebak.c tb-alvms.c tb-alvxw.c tb-gcc.c - $(COMPILER) -c $(ALL_COMPILERFLAGS) $(ADA_CFLAGS) $(ALL_CPPFLAGS) \ - $(INCLUDES) -fno-omit-frame-pointer $ $(OUTPUT_OPTION) +tracebak.o: tb-alvms.c tb-alvxw.c
Bug#742590: gnat-4.9: FTBFS on powerpc, Storage_Error in two source files
Package: src:gnat-4.9 Followup-For: Bug #742590 When compiling a-direct.adb on partch.debian.org, the failure appears with -O[12] but not with -O0. Gdb shows that it happens in the gnat1 subprocess and produces a backtrace. $ gdb ../../xgcc (gdb) set args -B../.. -c -O1 -gnatpg a-direct.adb -o a-direct.o (gdb) set follow-fork-mode child (gdb) run [ New process ] Program received signal SIGSEGV, Segmentation fault. 0x1065cb10 in emit_move_insn(rtx_def*, rtx_def*) () (gdb) bt #0 0x1065cb10 in emit_move_insn(rtx_def*, rtx_def*) () #1 0x1065de2c in convert_move(rtx_def*, rtx_def*, int) () #2 0x1065e2a0 in convert_modes(machine_mode, machine_mode, rtx_def*, int) () #3 0x10667f00 in expand_expr_real_2(separate_ops*, rtx_def*, machine_mode, expand_modifier) () #4 0x10659114 in expand_expr_real_1(tree_node*, rtx_def*, machine_mode, expand_modifier, rtx_def**, bool) () #5 0x1065a590 in expand_expr_real_1(tree_node*, rtx_def*, machine_mode, expand_modifier, rtx_def**, bool) () #6 0x10664448 in store_expr(tree_node*, rtx_def*, int, bool) () #7 0x106690e4 in expand_assignment(tree_node*, tree_node*, bool) () #8 0x10579f58 in expand_gimple_stmt(gimple_statement_base*) () #9 0x1057b57c in expand_gimple_basic_block(basic_block_def*, bool) () #10 0x1057d74c in (anonymous namespace)::pass_expand::execute() () #11 0x107e7bc4 in execute_one_pass(opt_pass*) () #12 0x107e7e44 in execute_pass_list(opt_pass*) () #13 0x105a4e08 in expand_function(cgraph_node*) () #14 0x105a6c44 in compile() () #15 0x105a7244 in finalize_compilation_unit() () #16 0x101e11a4 in gnat_write_global_declarations() () #17 0x108a0254 in compile_file() () #18 0x108a25d8 in toplev_main(int, char**) () #19 0x0fa4f274 in generic_start_main (main=0x101b6550 main, argc=14, argv=0xe5f4, auxvec=0xe690, init=optimized out, rtld_fini=optimized out, stack_end=optimized out, fini=optimized out) at ../csu/libc-start.c:287 #20 0x0fa4f434 in __libc_start_main (argc=optimized out, argv=optimized out, ev=optimized out, auxvec=optimized out, rtld_fini=optimized out, stinfo=optimized out, stack_on_entry=optimized out) at ../sysdeps/unix/sysv/linux/powerpc/libc-start.c:93 #21 0x in ?? () -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Bug#742590: gnat-4.9: FTBFS on powerpc, Storage_Error in two source files
Package: src:gnat-4.9 Version: 4.9-20140218-1 Severity: serious Symptoms from the buildd log: /«PKGBUILDDIR»/build/./gcc/xgcc -B/«PKGBUILDDIR»/build/./gcc/ -c -g -O2 -W -Wall -gnatpg -nostdinc a-direct.adb -o a-direct.o raised STORAGE_ERROR : stack overflow or erroneous memory access make[7]: *** [a-direct.o] Error 1 make[7]: Leaving directory `/«PKGBUILDDIR»/build/gcc/ada/rts-static-zcx' make[6]: *** [rts-static-zcx/libgnat.a] Error 2 make[6]: Leaving directory `/«PKGBUILDDIR»/build/gcc/ada' make[5]: *** [gnatlib-static-zcx] Error 2 make[5]: Leaving directory `/«PKGBUILDDIR»/build/gcc/ada' make[4]: *** [gnatlib-static-zcx] Error 2 make[4]: *** Waiting for unfinished jobs /«PKGBUILDDIR»/build/./gcc/xgcc -B/«PKGBUILDDIR»/build/./gcc/ -c -g -O2 -W -Wall -gnatpg -nostdinc a-direct.adb -o a-direct.o raised STORAGE_ERROR : stack overflow or erroneous memory access make[7]: *** [a-direct.o] Error 1 make[7]: *** Waiting for unfinished jobs /«PKGBUILDDIR»/build/./gcc/xgcc -B/«PKGBUILDDIR»/build/./gcc/ -c -g -O2 -fPIC -W -Wall -gnatpg -nostdinc -fPIC a-direct.adb -o a-direct.o raised STORAGE_ERROR : stack overflow or erroneous memory access make[7]: *** [a-direct.o] Error 1 make[7]: *** Waiting for unfinished jobs /«PKGBUILDDIR»/build/./gcc/xgcc -B/«PKGBUILDDIR»/build/./gcc/ -c -g -O2 -W -Wall -gnatpg -nostdinc -g -O1 -fno-inline \ -fno-toplevel-reorder a-except.adb -o a-except.o raised STORAGE_ERROR : stack overflow or erroneous memory access make[7]: *** [a-except.o] Error 1 make[7]: Leaving directory `/«PKGBUILDDIR»/build/gcc/ada/rts-static-sjlj' make[6]: *** [rts-static-sjlj/libgnat.a] Error 2 make[6]: Leaving directory `/«PKGBUILDDIR»/build/gcc/ada' make[5]: *** [gnatlib-static-sjlj] Error 2 make[5]: Leaving directory `/«PKGBUILDDIR»/build/gcc/ada' make[4]: *** [gnatlib-static-sjlj] Error 2 /«PKGBUILDDIR»/build/./gcc/xgcc -B/«PKGBUILDDIR»/build/./gcc/ -c -g -O2 -fPIC -W -Wall -gnatpg -nostdinc -fPIC -g -O1 -fno-inline \ -fno-toplevel-reorder a-except.adb -o a-except.o raised STORAGE_ERROR : stack overflow or erroneous memory access make[7]: *** [a-except.o] Error 1 make[7]: Leaving directory `/«PKGBUILDDIR»/build/gcc/ada/rts-shared-zcx' make[6]: *** [rts-shared-zcx/libgnat-4.9.so] Error 2 make[6]: Leaving directory `/«PKGBUILDDIR»/build/gcc/ada' make[5]: *** [gnatlib-shared-zcx] Error 2 make[5]: Leaving directory `/«PKGBUILDDIR»/build/gcc/ada' make[4]: *** [gnatlib-shared-zcx] Error 2 make[4]: Leaving directory `/«PKGBUILDDIR»/build/libada' make[3]: *** [all-libada] Error 2 make[3]: Leaving directory `/«PKGBUILDDIR»/build' make[2]: *** [bootstrap] Error 2 make[2]: Leaving directory `/«PKGBUILDDIR»/build' Note that none of these exceptions are raised when using the bootstrap compiler (gnat-4.6) to compile a-except.adb. -- Ludovic Brenta. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
