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From: "uaa at mx5 dot nisiq.net" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/107884] New: H8/300: cp-demangle.c fix warning related demangle.h Date: Sat, 26 Nov 2022 23:16:55 +0000 [thread overview] Message-ID: <bug-107884-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107884 Bug ID: 107884 Summary: H8/300: cp-demangle.c fix warning related demangle.h Product: gcc Version: 12.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libstdc++ Assignee: unassigned at gcc dot gnu.org Reporter: uaa at mx5 dot nisiq.net Target Milestone: --- Created attachment 53973 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53973&action=edit pack DMGL_* option bit within 16bit width On building gcc-12.2.0 with newlib-4.1.0 (newlib and libgloss) and binutils-2.36.1 on Debian-11.5/amd64. gcc/config/h8300/t-h8300 is modified with: MULTILIB_OPTIONS = ms/msx mint32 MULTILIB_DIRNAMES = h8300s h8sx int32 to disable building H8 normal mode library. gcc configuration is: ../configure --target=h8300-unknown-elf --enable-languages=c,c++ \ --prefix=/home/uaa/h8300 --with-newlib --disable-nls --disable-libssp \ --disable-libgomp --disable-libstdcxx-pch \ --disable-libstdcxx-filesystem-ts --with-newlib --disable-wchar_t include/demangle.h related warning occurs cross-compiled cp-demangle.c, due to the size of int is 16bit (H8/300 default). bin/bash ../libtool --tag CC --tag disable-shared --mode=compile /home/uaa/gcc-12.2.0/h8300-unknown-elf/./gcc/xgcc -B/home/uaa/gcc-12.2.0/h8300-unknown-elf/./gcc/ -nostdinc -B/home/uaa/gcc-12.2.0/h8300-unknown-elf/h8300-unknown-elf/newlib/ -isystem /home/uaa/gcc-12.2.0/h8300-unknown-elf/h8300-unknown-elf/newlib/targ-include -isystem /home/uaa/gcc-12.2.0/newlib/libc/include -B/home/uaa/h8300/h8300-unknown-elf/bin/ -B/home/uaa/h8300/h8300-unknown-elf/lib/ -isystem /home/uaa/h8300/h8300-unknown-elf/include -isystem /home/uaa/h8300/h8300-unknown-elf/sys-include -DHAVE_CONFIG_H -I.. -I/home/uaa/gcc-12.2.0/libstdc++-v3/../libiberty -I/home/uaa/gcc-12.2.0/libstdc++-v3/../include -I/home/uaa/gcc-12.2.0/h8300-unknown-elf/h8300-unknown-elf/libstdc++-v3/include/h8300-unknown-elf -I/home/uaa/gcc-12.2.0/h8300-unknown-elf/h8300-unknown-elf/libstdc++-v3/include -I/home/uaa/gcc-12.2.0/libstdc++-v3/libsupc++ -g -O2 -DIN_GLIBCPP_V3 -Wno-error -c cp-demangle.c libtool: compile: /home/uaa/gcc-12.2.0/h8300-unknown-elf/./gcc/xgcc -B/home/uaa/gcc-12.2.0/h8300-unknown-elf/./gcc/ -nostdinc -B/home/uaa/gcc-12.2.0/h8300-unknown-elf/h8300-unknown-elf/newlib/ -isystem /home/uaa/gcc-12.2.0/h8300-unknown-elf/h8300-unknown-elf/newlib/targ-include -isystem /home/uaa/gcc-12.2.0/newlib/libc/include -B/home/uaa/h8300/h8300-unknown-elf/bin/ -B/home/uaa/h8300/h8300-unknown-elf/lib/ -isystem /home/uaa/h8300/h8300-unknown-elf/include -isystem /home/uaa/h8300/h8300-unknown-elf/sys-include -DHAVE_CONFIG_H -I.. -I/home/uaa/gcc-12.2.0/libstdc++-v3/../libiberty -I/home/uaa/gcc-12.2.0/libstdc++-v3/../include -I/home/uaa/gcc-12.2.0/h8300-unknown-elf/h8300-unknown-elf/libstdc++-v3/include/h8300-unknown-elf -I/home/uaa/gcc-12.2.0/h8300-unknown-elf/h8300-unknown-elf/libstdc++-v3/include -I/home/uaa/gcc-12.2.0/libstdc++-v3/libsupc++ -g -O2 -DIN_GLIBCPP_V3 -Wno-error -c cp-demangle.c -o cp-demangle.o In file included from cp-demangle.c:139: /home/uaa/gcc-12.2.0/libstdc++-v3/../include/demangle.h:58:29: warning: left shift count >= width of type [-Wshift-count-overflow] 58 | #define DMGL_DLANG (1 << 16) | ^~ /home/uaa/gcc-12.2.0/libstdc++-v3/../include/demangle.h:91:22: note: in expansion of macro 'DMGL_DLANG' 91 | dlang_demangling = DMGL_DLANG, | ^~~~~~~~~~ /home/uaa/gcc-12.2.0/libstdc++-v3/../include/demangle.h:59:29: warning: left shift count >= width of type [-Wshift-count-overflow] 59 | #define DMGL_RUST (1 << 17) /* Rust wraps GNU_V3 style mangling. */ | ^~ /home/uaa/gcc-12.2.0/libstdc++-v3/../include/demangle.h:92:21: note: in expansion of macro 'DMGL_RUST' 92 | rust_demangling = DMGL_RUST | ^~~~~~~~~ cp-demangle.c: In function 'd_function_type': /home/uaa/gcc-12.2.0/libstdc++-v3/../include/demangle.h:68:34: warning: left shift count >= width of type [-Wshift-count-overflow] 68 | #define DMGL_NO_RECURSE_LIMIT (1 << 18) | ^~ cp-demangle.c:2891:22: note: in expansion of macro 'DMGL_NO_RECURSE_LIMIT' 2891 | if ((di->options & DMGL_NO_RECURSE_LIMIT) == 0) | ^~~~~~~~~~~~~~~~~~~~~ /home/uaa/gcc-12.2.0/libstdc++-v3/../include/demangle.h:68:34: warning: left shift count >= width of type [-Wshift-count-overflow] 68 | #define DMGL_NO_RECURSE_LIMIT (1 << 18) | ^~ cp-demangle.c:2916:22: note: in expansion of macro 'DMGL_NO_RECURSE_LIMIT' 2916 | if ((di->options & DMGL_NO_RECURSE_LIMIT) == 0) | ^~~~~~~~~~~~~~~~~~~~~ cp-demangle.c: In function 'd_demangle_callback': /home/uaa/gcc-12.2.0/libstdc++-v3/../include/demangle.h:68:34: warning: left shift count >= width of type [-Wshift-count-overflow] 68 | #define DMGL_NO_RECURSE_LIMIT (1 << 18) | ^~ cp-demangle.c:6448:19: note: in expansion of macro 'DMGL_NO_RECURSE_LIMIT' 6448 | if (((options & DMGL_NO_RECURSE_LIMIT) == 0) | ^~~~~~~~~~~~~~~~~~~~~ suggested remedy is attached.
next reply other threads:[~2022-11-26 23:16 UTC|newest] Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-11-26 23:16 uaa at mx5 dot nisiq.net [this message] 2022-11-27 0:19 ` [Bug demangler/107884] " pinskia at gcc dot gnu.org 2022-11-27 9:35 ` uaa at mx5 dot nisiq.net 2022-11-28 7:44 ` rguenth at gcc dot gnu.org 2022-11-28 9:13 ` redi at gcc dot gnu.org 2022-11-28 11:37 ` redi at gcc dot gnu.org 2022-11-29 12:29 ` uaa at mx5 dot nisiq.net 2023-01-05 13:56 ` redi at gcc dot gnu.org 2023-02-24 15:25 ` mike at mnmoran dot org 2023-02-24 15:30 ` mike at mnmoran dot org 2023-02-26 12:34 ` uaa at mx5 dot nisiq.net 2023-02-26 14:58 ` mike at mnmoran dot org
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