| Message ID | trinity-44427fa1-7044-402e-ad6c-e54a7021c609-1591477899687@3c-app-gmx-bap44 |
|---|---|
| State | New |
| Headers | show |
| Series | PR fortran/95091 - Buffer overflows with submodules and long symbols | expand |
Hi Harald, > There's another case of buffer overflows when F2008 submodules are used. > Buffer sizes are further increased, and checks for overflow are put into > place. > > OK for master? OK, also for the backport. Thanks a lot! Regards Thomas
On Sun, Jun 7, 2020 at 1:28 AM Thomas Koenig via Gcc-patches <gcc-patches@gcc.gnu.org> wrote: > > Hi Harald, > > > There's another case of buffer overflows when F2008 submodules are used. > > Buffer sizes are further increased, and checks for overflow are put into > > place. > > > > OK for master? > > OK, also for the backport. > This may have broken bootstrap: https://gcc.gnu.org/pipermail/gcc-regression/2020-June/072701.html 3772 | pp_verbatim (context->printer, "\n"); | ^~ ../../src-master/gcc/cp/error.c: In function ‘void print_template_differences(pretty_printer*, tree, tree, bool, int)’: ../../src-master/gcc/cp/error.c:3932:21: warning: spurious trailing punctuation sequence ‘<’ in format [-Wformat-diag] 3932 | pp_printf (pp, "%s<", | ^ ../../src-master/gcc/cp/error.c:3932:21: warning: unbalanced punctuation character ‘<’ in format [-Wformat-diag] ../../src-master/gcc/cp/error.c:3990:19: warning: unbalanced punctuation character ‘>’ in format [-Wformat-diag] 3990 | pp_printf (pp, ">"); | ^ ../../src-master/gcc/cp/error.c: In function ‘const char* add_quotes(const char*, bool)’: ../../src-master/gcc/cp/error.c:4094:24: warning: quoted ‘%s’ directive in format; use ‘%qs’ instead [-Wformat-diag] 4094 | pp_printf (&tmp_pp, "%<%s%>", content); | ^~~~~~ /export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/xg++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/ -B/usr/11.0.0/x86_64-pc-linux-gnu/bin/ -nostdinc++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include -I/export/gnu/import/git/gcc-test-master-intel64/src-master/libstdc++-v3/libsupc++ 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-I../../src-master/gcc/../libdecnumber -I../../src-master/gcc/../libdecnumber/bid -I../libdecnumber -I../../src-master/gcc/../libbacktrace -o cp/ptree.o -MT cp/ptree.o -MMD -MP -MF cp/.deps/ptree.TPo ../../src-master/gcc/cp/ptree.c ../../src-master/gcc/cp/logic.cc: In function ‘void debug(formula&)’: ../../src-master/gcc/cp/logic.cc:321:18: warning: spurious leading punctuation sequence ‘(((’ in format [-Wformat-diag] 321 | verbatim ("((("); | ^~~ ../../src-master/gcc/cp/logic.cc:321:20: warning: unbalanced punctuation character ‘(’ in format [-Wformat-diag] 321 | verbatim ("((("); | ^ ../../src-master/gcc/cp/logic.cc:323:18: warning: unbalanced punctuation character ‘)’ in format [-Wformat-diag] 323 | verbatim (")))"); | ^ ../../src-master/gcc/cp/logic.cc:323:19: warning: unbalanced punctuation character ‘)’ in format [-Wformat-diag] 323 | verbatim (")))"); | ^ ../../src-master/gcc/cp/logic.cc:323:20: warning: unbalanced punctuation character ‘)’ in format [-Wformat-diag] 323 | verbatim (")))"); | ^ /export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/xg++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/ -B/usr/11.0.0/x86_64-pc-linux-gnu/bin/ -nostdinc++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include -I/export/gnu/import/git/gcc-test-master-intel64/src-master/libstdc++-v3/libsupc++ -L/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -L/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -fno-PIE -c -DIN_GCC_FRONTEND -g -O2 -fno-checking -gtoggle -DIN_GCC -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-error=format-diag -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -Icp -I../../src-master/gcc -I../../src-master/gcc/cp -I../../src-master/gcc/../include -I../../src-master/gcc/../libcpp/include -I../../src-master/gcc/../libdecnumber -I../../src-master/gcc/../libdecnumber/bid -I../libdecnumber -I../../src-master/gcc/../libbacktrace -o cp/rtti.o -MT cp/rtti.o -MMD -MP -MF cp/.deps/rtti.TPo ../../src-master/gcc/cp/rtti.c /export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/xg++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/ -B/usr/11.0.0/x86_64-pc-linux-gnu/bin/ -nostdinc++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include -I/export/gnu/import/git/gcc-test-master-intel64/src-master/libstdc++-v3/libsupc++ -L/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -L/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -fno-PIE -c -DIN_GCC_FRONTEND -g -O2 -fno-checking -gtoggle -DIN_GCC -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-error=format-diag -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -Icp -I../../src-master/gcc -I../../src-master/gcc/cp -I../../src-master/gcc/../include -I../../src-master/gcc/../libcpp/include -I../../src-master/gcc/../libdecnumber -I../../src-master/gcc/../libdecnumber/bid -I../libdecnumber -I../../src-master/gcc/../libbacktrace -o cp/search.o -MT cp/search.o -MMD -MP -MF cp/.deps/search.TPo ../../src-master/gcc/cp/search.c /export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/xg++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/ -B/usr/11.0.0/x86_64-pc-linux-gnu/bin/ -nostdinc++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include -I/export/gnu/import/git/gcc-test-master-intel64/src-master/libstdc++-v3/libsupc++ -L/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -L/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -fno-PIE -c -DIN_GCC_FRONTEND -g -O2 -fno-checking -gtoggle -DIN_GCC -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-error=format-diag -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -Icp -I../../src-master/gcc -I../../src-master/gcc/cp -I../../src-master/gcc/../include -I../../src-master/gcc/../libcpp/include -I../../src-master/gcc/../libdecnumber -I../../src-master/gcc/../libdecnumber/bid -I../libdecnumber -I../../src-master/gcc/../libbacktrace -o cp/semantics.o -MT cp/semantics.o -MMD -MP -MF cp/.deps/semantics.TPo ../../src-master/gcc/cp/semantics.c /export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/xg++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/ -B/usr/11.0.0/x86_64-pc-linux-gnu/bin/ -nostdinc++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include -I/export/gnu/import/git/gcc-test-master-intel64/src-master/libstdc++-v3/libsupc++ -L/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -L/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -fno-PIE -c -DIN_GCC_FRONTEND -g -O2 -fno-checking -gtoggle -DIN_GCC -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-error=format-diag -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -Icp -I../../src-master/gcc -I../../src-master/gcc/cp -I../../src-master/gcc/../include -I../../src-master/gcc/../libcpp/include -I../../src-master/gcc/../libdecnumber -I../../src-master/gcc/../libdecnumber/bid -I../libdecnumber -I../../src-master/gcc/../libbacktrace -o cp/tree.o -MT cp/tree.o -MMD -MP -MF cp/.deps/tree.TPo ../../src-master/gcc/cp/tree.c ../../src-master/gcc/cp/parser.c: In function ‘void maybe_add_cast_fixit(rich_location*, location_t, location_t, tree, tree)’: ../../src-master/gcc/cp/parser.c:9329:22: warning: spurious trailing punctuation sequence ‘<’ in format [-Wformat-diag] 9329 | pp_printf (&pp, "%s<", cast_suggestion); | ^ ../../src-master/gcc/cp/parser.c:9329:22: warning: unbalanced punctuation character ‘<’ in format [-Wformat-diag] /export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/xg++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/ -B/usr/11.0.0/x86_64-pc-linux-gnu/bin/ -nostdinc++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include -I/export/gnu/import/git/gcc-test-master-intel64/src-master/libstdc++-v3/libsupc++ -L/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -L/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -fno-PIE -c -DIN_GCC_FRONTEND -g -O2 -fno-checking -gtoggle -DIN_GCC -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-error=format-diag -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -Icp -I../../src-master/gcc -I../../src-master/gcc/cp -I../../src-master/gcc/../include -I../../src-master/gcc/../libcpp/include -I../../src-master/gcc/../libdecnumber -I../../src-master/gcc/../libdecnumber/bid -I../libdecnumber -I../../src-master/gcc/../libbacktrace -o cp/typeck.o -MT cp/typeck.o -MMD -MP -MF cp/.deps/typeck.TPo ../../src-master/gcc/cp/typeck.c ../../src-master/gcc/cp/parser.c: In function ‘bool cp_parser_template_introduction(cp_parser*, bool)’: ../../src-master/gcc/cp/parser.c:29304:37: warning: unquoted sequence of 2 consecutive punctuation characters ‘[-’ in format [-Wformat-diag] 29304 | " are not part of C++20 concepts [-fconcepts-ts]"); | ^~ /export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/xg++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/ -B/usr/11.0.0/x86_64-pc-linux-gnu/bin/ -nostdinc++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include -I/export/gnu/import/git/gcc-test-master-intel64/src-master/libstdc++-v3/libsupc++ -L/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -L/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -fno-PIE -c -DIN_GCC_FRONTEND -g -O2 -fno-checking -gtoggle -DIN_GCC -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-error=format-diag -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -Icp -I../../src-master/gcc -I../../src-master/gcc/cp -I../../src-master/gcc/../include -I../../src-master/gcc/../libcpp/include -I../../src-master/gcc/../libdecnumber -I../../src-master/gcc/../libdecnumber/bid -I../libdecnumber -I../../src-master/gcc/../libbacktrace -o cp/typeck2.o -MT cp/typeck2.o -MMD -MP -MF cp/.deps/typeck2.TPo ../../src-master/gcc/cp/typeck2.c /export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/xg++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/ -B/usr/11.0.0/x86_64-pc-linux-gnu/bin/ -nostdinc++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include -I/export/gnu/import/git/gcc-test-master-intel64/src-master/libstdc++-v3/libsupc++ -L/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -L/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -fno-PIE -c -DIN_GCC_FRONTEND -g -O2 -fno-checking -gtoggle -DIN_GCC -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-error=format-diag -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -Icp -I../../src-master/gcc -I../../src-master/gcc/cp -I../../src-master/gcc/../include -I../../src-master/gcc/../libcpp/include -I../../src-master/gcc/../libdecnumber -I../../src-master/gcc/../libdecnumber/bid -I../libdecnumber -I../../src-master/gcc/../libbacktrace -o cp/vtable-class-hierarchy.o -MT cp/vtable-class-hierarchy.o -MMD -MP -MF cp/.deps/vtable-class-hierarchy.TPo ../../src-master/gcc/cp/vtable-class-hierarchy.c /export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/xg++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/ -B/usr/11.0.0/x86_64-pc-linux-gnu/bin/ -nostdinc++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu 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-I../../src-master/gcc/../libbacktrace -o fortran/arith.o -MT fortran/arith.o -MMD -MP -MF fortran/.deps/arith.TPo ../../src-master/gcc/fortran/arith.c /export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/xg++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/ -B/usr/11.0.0/x86_64-pc-linux-gnu/bin/ -nostdinc++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include -I/export/gnu/import/git/gcc-test-master-intel64/src-master/libstdc++-v3/libsupc++ -L/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -L/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -fno-PIE -c -DIN_GCC_FRONTEND -g -O2 -fno-checking -gtoggle -DIN_GCC -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-error=format-diag -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -Ifortran -I../../src-master/gcc -I../../src-master/gcc/fortran -I../../src-master/gcc/../include -I../../src-master/gcc/../libcpp/include -I../../src-master/gcc/../libdecnumber -I../../src-master/gcc/../libdecnumber/bid -I../libdecnumber -I../../src-master/gcc/../libbacktrace -o fortran/array.o -MT fortran/array.o -MMD -MP -MF fortran/.deps/array.TPo ../../src-master/gcc/fortran/array.c /export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/xg++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/ -B/usr/11.0.0/x86_64-pc-linux-gnu/bin/ -nostdinc++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu -I/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/include -I/export/gnu/import/git/gcc-test-master-intel64/src-master/libstdc++-v3/libsupc++ -L/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -L/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs -fno-PIE -c -DIN_GCC_FRONTEND -g -O2 -fno-checking -gtoggle -DIN_GCC -fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wno-error=format-diag -Wmissing-format-attribute -Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros -Wno-overlength-strings -Werror -fno-common -DHAVE_CONFIG_H -I. -Ifortran -I../../src-master/gcc -I../../src-master/gcc/fortran -I../../src-master/gcc/../include -I../../src-master/gcc/../libcpp/include -I../../src-master/gcc/../libdecnumber -I../../src-master/gcc/../libdecnumber/bid -I../libdecnumber -I../../src-master/gcc/../libbacktrace -o fortran/bbt.o -MT fortran/bbt.o -MMD -MP -MF fortran/.deps/bbt.TPo ../../src-master/gcc/fortran/bbt.c ../../src-master/gcc/cp/typeck.c: In static member function ‘static void access_failure_info::add_fixit_hint(rich_location*, tree)’: ../../src-master/gcc/cp/typeck.c:2891:22: warning: spurious trailing punctuation sequence ‘()’ in format [-Wformat-diag] 2891 | pp_printf (&pp, "%s()", IDENTIFIER_POINTER (DECL_NAME (accessor_decl))); | ^~ /export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/xg++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/ 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../../src-master/gcc/fortran/decl.c In file included from ../../src-master/gcc/fortran/class.c:58: ../../src-master/gcc/fortran/class.c: In function ‘unsigned int gfc_hash_value(gfc_symbol*)’: ../../src-master/gcc/fortran/class.c:543:19: error: comparison of integer expressions of different signedness: ‘int’ and ‘long unsigned int’ [-Werror=sign-compare] 543 | gcc_assert (len < sizeof (c)); | ~~~~^~~~~~~~~~~~ ../../src-master/gcc/system.h:748:14: note: in definition of macro ‘gcc_assert’ 748 | ((void)(!(EXPR) ? fancy_abort (__FILE__, __LINE__, __FUNCTION__), 0 : 0)) | ^~~~ /export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/xg++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/./prev-gcc/ -B/usr/11.0.0/x86_64-pc-linux-gnu/bin/ -nostdinc++ -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs -B/export/gnu/import/git/gcc-test-master-intel64/bld/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs 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Hi H.J., > Gesendet: Sonntag, 07. Juni 2020 um 16:02 Uhr > Von: "H.J. Lu" <hjl.tools@gmail.com> > An: "Thomas Koenig" <tkoenig@netcologne.de> > Cc: "Harald Anlauf" <anlauf@gmx.de>, "fortran" <fortran@gcc.gnu.org>, "gcc-patches" <gcc-patches@gcc.gnu.org> > Betreff: Re: [PATCH] PR fortran/95091 - Buffer overflows with submodules and long symbols > This may have broken bootstrap: > > https://gcc.gnu.org/pipermail/gcc-regression/2020-June/072701.html [...] > In file included from ../../src-master/gcc/fortran/class.c:58: > ../../src-master/gcc/fortran/class.c: In function ‘unsigned int > gfc_hash_value(gfc_symbol*)’: > ../../src-master/gcc/fortran/class.c:543:19: error: comparison of > integer expressions of different signedness: ‘int’ and ‘long unsigned > int’ [-Werror=sign-compare] > 543 | gcc_assert (len < sizeof (c)); > | ~~~~^~~~~~~~~~~~ Does the following patch fix bootstrap for you? diff --git a/gcc/fortran/class.c b/gcc/fortran/class.c index 8bb73502f5d..2b55859ce75 100644 --- a/gcc/fortran/class.c +++ b/gcc/fortran/class.c @@ -540,7 +540,7 @@ gfc_hash_value (gfc_symbol *sym) get_unique_type_string (&c[0], sym); len = strnlen (c, sizeof (c)); - gcc_assert (len < sizeof (c)); + gcc_assert ((size_t) len < sizeof (c)); for (i = 0; i < len; i++) hash = (hash << 6) + (hash << 16) - hash + c[i]; Harald
Yes, it works. On Sun, Jun 7, 2020 at 7:19 AM Harald Anlauf <anlauf@gmx.de> wrote: > > Hi H.J., > > > Gesendet: Sonntag, 07. Juni 2020 um 16:02 Uhr > > Von: "H.J. Lu" <hjl.tools@gmail.com> > > An: "Thomas Koenig" <tkoenig@netcologne.de> > > Cc: "Harald Anlauf" <anlauf@gmx.de>, "fortran" <fortran@gcc.gnu.org>, "gcc-patches" <gcc-patches@gcc.gnu.org> > > Betreff: Re: [PATCH] PR fortran/95091 - Buffer overflows with submodules and long symbols > > > This may have broken bootstrap: > > > > https://gcc.gnu.org/pipermail/gcc-regression/2020-June/072701.html > [...] > > In file included from ../../src-master/gcc/fortran/class.c:58: > > ../../src-master/gcc/fortran/class.c: In function ‘unsigned int > > gfc_hash_value(gfc_symbol*)’: > > ../../src-master/gcc/fortran/class.c:543:19: error: comparison of > > integer expressions of different signedness: ‘int’ and ‘long unsigned > > int’ [-Werror=sign-compare] > > 543 | gcc_assert (len < sizeof (c)); > > | ~~~~^~~~~~~~~~~~ > > Does the following patch fix bootstrap for you? > > diff --git a/gcc/fortran/class.c b/gcc/fortran/class.c > index 8bb73502f5d..2b55859ce75 100644 > --- a/gcc/fortran/class.c > +++ b/gcc/fortran/class.c > @@ -540,7 +540,7 @@ gfc_hash_value (gfc_symbol *sym) > > get_unique_type_string (&c[0], sym); > len = strnlen (c, sizeof (c)); > - gcc_assert (len < sizeof (c)); > + gcc_assert ((size_t) len < sizeof (c)); > > for (i = 0; i < len; i++) > hash = (hash << 6) + (hash << 16) - hash + c[i]; > > Harald >
diff --git a/gcc/fortran/class.c b/gcc/fortran/class.c index b1764073ab4..8bb73502f5d 100644 --- a/gcc/fortran/class.c +++ b/gcc/fortran/class.c @@ -509,9 +509,11 @@ get_unique_type_string (char *string, gfc_symbol *derived) static void get_unique_hashed_string (char *string, gfc_symbol *derived) { - /* Provide sufficient space to hold "symbol_Pdtsymbol". */ - char tmp[2*GFC_MAX_SYMBOL_LEN+5]; + /* Provide sufficient space to hold "symbol.symbol_symbol". */ + char tmp[3*GFC_MAX_SYMBOL_LEN+3]; get_unique_type_string (&tmp[0], derived); + size_t len = strnlen (tmp, sizeof (tmp)); + gcc_assert (len < sizeof (tmp)); /* If string is too long, use hash value in hex representation (allow for extra decoration, cf. gfc_build_class_symbol & gfc_find_derived_vtab). We need space to for 15 characters "__class_" + symbol name + "_%d_%da", @@ -532,12 +534,13 @@ unsigned int gfc_hash_value (gfc_symbol *sym) { unsigned int hash = 0; - /* Provide sufficient space to hold "symbol_Pdtsymbol". */ - char c[2*GFC_MAX_SYMBOL_LEN+5]; + /* Provide sufficient space to hold "symbol.symbol_symbol". */ + char c[3*GFC_MAX_SYMBOL_LEN+3]; int i, len; get_unique_type_string (&c[0], sym); - len = strlen (c); + len = strnlen (c, sizeof (c)); + gcc_assert (len < sizeof (c)); for (i = 0; i < len; i++) hash = (hash << 6) + (hash << 16) - hash + c[i]; diff --git a/gcc/testsuite/gfortran.dg/pr95091.f90 b/gcc/testsuite/gfortran.dg/pr95091.f90 new file mode 100644 index 00000000000..1c48dca2f4a --- /dev/null +++ b/gcc/testsuite/gfortran.dg/pr95091.f90 @@ -0,0 +1,19 @@ +! { dg-do compile } +! { dg-options "-fsecond-underscore" } +! PR fortran/95091 - ICE in gfc_hash_value + +module m2345678901234567890123456789012345678901234567890123456789_123 + type t2345678901234567890123456789012345678901234567890123456789_123 + end type t2345678901234567890123456789012345678901234567890123456789_123 + interface + module subroutine s2345678901234567890123456789012345678901234567890123456789_123 & + (x2345678901234567890123456789012345678901234567890123456789_123) + end + end interface +end +submodule(m2345678901234567890123456789012345678901234567890123456789_123) & + n2345678901234567890123456789012345678901234567890123456789_123 + type, extends(t2345678901234567890123456789012345678901234567890123456789_123) :: & + u2345678901234567890123456789012345678901234567890123456789_123 + end type +end