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* [Bug middle-end/92815] [8/9/10 Regression] spurious -Wstringop-overflow writing into a flexible array of an extern struct [not found] <bug-92815-4@http.gcc.gnu.org/bugzilla/> @ 2020-04-22 21:38 ` msebor at gcc dot gnu.org 2020-05-18 21:25 ` [Bug middle-end/92815] [8/9/10/11 " cvs-commit at gcc dot gnu.org ` (8 subsequent siblings) 9 siblings, 0 replies; 10+ messages in thread From: msebor at gcc dot gnu.org @ 2020-04-22 21:38 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92815 Martin Sebor <msebor at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Last reconfirmed|2019-12-05 00:00:00 |2020-4-22 Known to fail| |10.0, 8.2.0, 9.2.0 Keywords| |patch --- Comment #5 from Martin Sebor <msebor at gcc dot gnu.org> --- Patch: https://gcc.gnu.org/pipermail/gcc-patches/2020-April/544369.html ^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug middle-end/92815] [8/9/10/11 Regression] spurious -Wstringop-overflow writing into a flexible array of an extern struct [not found] <bug-92815-4@http.gcc.gnu.org/bugzilla/> 2020-04-22 21:38 ` [Bug middle-end/92815] [8/9/10 Regression] spurious -Wstringop-overflow writing into a flexible array of an extern struct msebor at gcc dot gnu.org @ 2020-05-18 21:25 ` cvs-commit at gcc dot gnu.org 2020-05-18 21:26 ` [Bug middle-end/92815] [8/9/10 " msebor at gcc dot gnu.org ` (7 subsequent siblings) 9 siblings, 0 replies; 10+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2020-05-18 21:25 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92815 --- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Martin Sebor <msebor@gcc.gnu.org>: https://gcc.gnu.org/g:7a41fcde6c67faafab8c8ee2a31140999383dcef commit r11-470-g7a41fcde6c67faafab8c8ee2a31140999383dcef Author: Martin Sebor <msebor@redhat.com> Date: Mon May 18 15:24:12 2020 -0600 PR middle-end/92815 - spurious -Wstringop-overflow writing into a flexible array of an extern struct gcc/ChangeLog: PR middle-end/92815 * tree-object-size.c (decl_init_size): New function. (addr_object_size): Call it. * tree.h (last_field): Declare. (first_field): Add attribute nonnull. gcc/testsuite/ChangeLog: PR middle-end/92815 * gcc.dg/Warray-bounds-56.c: Remove xfails. * gcc.dg/builtin-object-size-20.c: New test. * gcc.dg/builtin-object-size-21.c: New test. ^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug middle-end/92815] [8/9/10 Regression] spurious -Wstringop-overflow writing into a flexible array of an extern struct [not found] <bug-92815-4@http.gcc.gnu.org/bugzilla/> 2020-04-22 21:38 ` [Bug middle-end/92815] [8/9/10 Regression] spurious -Wstringop-overflow writing into a flexible array of an extern struct msebor at gcc dot gnu.org 2020-05-18 21:25 ` [Bug middle-end/92815] [8/9/10/11 " cvs-commit at gcc dot gnu.org @ 2020-05-18 21:26 ` msebor at gcc dot gnu.org 2020-05-18 22:33 ` cvs-commit at gcc dot gnu.org ` (6 subsequent siblings) 9 siblings, 0 replies; 10+ messages in thread From: msebor at gcc dot gnu.org @ 2020-05-18 21:26 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92815 Martin Sebor <msebor at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Known to work| |11.0 Summary|[8/9/10/11 Regression] |[8/9/10 Regression] |spurious |spurious |-Wstringop-overflow writing |-Wstringop-overflow writing |into a flexible array of an |into a flexible array of an |extern struct |extern struct --- Comment #7 from Martin Sebor <msebor at gcc dot gnu.org> --- Fixed on trunk for now. ^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug middle-end/92815] [8/9/10 Regression] spurious -Wstringop-overflow writing into a flexible array of an extern struct [not found] <bug-92815-4@http.gcc.gnu.org/bugzilla/> ` (2 preceding siblings ...) 2020-05-18 21:26 ` [Bug middle-end/92815] [8/9/10 " msebor at gcc dot gnu.org @ 2020-05-18 22:33 ` cvs-commit at gcc dot gnu.org 2020-05-25 15:44 ` asolokha at gmx dot com ` (5 subsequent siblings) 9 siblings, 0 replies; 10+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2020-05-18 22:33 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92815 --- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Martin Sebor <msebor@gcc.gnu.org>: https://gcc.gnu.org/g:8edf0adb6616bd717312d9b305c7d7c9a6b7a171 commit r11-472-g8edf0adb6616bd717312d9b305c7d7c9a6b7a171 Author: Martin Sebor <msebor@redhat.com> Date: Mon May 18 16:31:13 2020 -0600 PR middle-end/92815 - spurious -Wstringop-overflow writing into a flexible array of an extern struct Adjust test to avoid failures in ILP32 mode. gcc/testsuite/ChangeLog: PR middle-end/92815 * gcc.dg/builtin-object-size-20.c: Adjust to avoid failures in ILP32 mode. ^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug middle-end/92815] [8/9/10 Regression] spurious -Wstringop-overflow writing into a flexible array of an extern struct [not found] <bug-92815-4@http.gcc.gnu.org/bugzilla/> ` (3 preceding siblings ...) 2020-05-18 22:33 ` cvs-commit at gcc dot gnu.org @ 2020-05-25 15:44 ` asolokha at gmx dot com 2021-05-14 9:52 ` [Bug middle-end/92815] [9/10 " jakub at gcc dot gnu.org ` (4 subsequent siblings) 9 siblings, 0 replies; 10+ messages in thread From: asolokha at gmx dot com @ 2020-05-25 15:44 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92815 Arseny Solokha <asolokha at gmx dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |asolokha at gmx dot com --- Comment #9 from Arseny Solokha <asolokha at gmx dot com> --- Created attachment 48593 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48593&action=edit Diff between assembler output produced by gcc and g++ 11 Though there are no flexible array members in C++, is it expected for g++ to behave differently w/ this testcase? While compiling it w/ gcc yeilds the following, which is expected: % gcc-11.0.0 -c gcc/testsuite/gcc.dg/builtin-object-size-21.c gcc/testsuite/gcc.dg/builtin-object-size-21.c:29:14: error: size of variable 'xm3_4' is too large 29 | struct Ax_m3 xm3_4 = { { 0 }, { 1, 2, 3, 3 } }; // { dg-error "too large" } | ^~~~~ gcc/testsuite/gcc.dg/builtin-object-size-21.c:43:14: error: size of variable 'xmx_1' is too large 43 | struct Ax_mx xmx_1 = { { 0 }, { 1 } }; // { dg-error "too large" } | W/ g++ I have % g++-11.0.0 -c gcc/testsuite/gcc.dg/builtin-object-size-21.c /tmp/ccPBumhF.s: Assembler messages: /tmp/ccPBumhF.s: Fatal error: can't write 14 bytes to section .text of /tmp/ccj6lymE.o: 'file truncated' /usr/lib/gcc/x86_64-unknown-linux-gnu/11.0.0/../../../../x86_64-unknown-linux-gnu/bin/as: BFD (Gentoo 2.34 p4) 2.34.0 assertion fail /var/tmp/portage/sys-devel/binutils-2.34-r1/work/binutils-2.34/bfd/elf.c:3169 /tmp/ccPBumhF.s: Fatal error: can't close /tmp/ccj6lymE.o: file truncated because of [pid 1165642] openat(AT_FDCWD, "builtin-object-size-21.o", O_RDWR|O_CREAT|O_TRUNC, 0666) = 3 <…> [pid 1165642] fstat(3, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0 [pid 1165642] lseek(3, -9223372036854775808, SEEK_SET) = -1 EINVAL (Invalid argument) Or, when writing to an "endless" file w/ -o /dev/null: [pid 1164514] lseek(3, -9223372036854775808, SEEK_SET) = 0 [pid 1164514] read(3, "", 640) = 0 [pid 1164514] lseek(3, 640, SEEK_CUR) = 0 [pid 1164514] write(3, "\0builtin-object-size-21.c\0xm3_0\0"..., 96) = 96 [pid 1164514] lseek(3, 0, SEEK_SET) = 0 [pid 1164514] read(3, "", 4096) = 0 [pid 1164514] lseek(3, 64, SEEK_CUR) = 0 [pid 1164514] write(3, "UH\211\345\220]\303UH\211\345\220]\303", 14) = 14 [pid 1164514] lseek(3, 0, SEEK_SET) = 0 [pid 1164514] read(3, "", 4096) = 0 [pid 1164514] lseek(3, 96, SEEK_CUR) = 0 [pid 1164514] write(3, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 4096) = 4096 [pid 1164514] write(3, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 4096) = 4096 [pid 1164514] write(3, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"..., 4096) = 4096 ^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug middle-end/92815] [9/10 Regression] spurious -Wstringop-overflow writing into a flexible array of an extern struct [not found] <bug-92815-4@http.gcc.gnu.org/bugzilla/> ` (4 preceding siblings ...) 2020-05-25 15:44 ` asolokha at gmx dot com @ 2021-05-14 9:52 ` jakub at gcc dot gnu.org 2021-06-01 8:15 ` rguenth at gcc dot gnu.org ` (3 subsequent siblings) 9 siblings, 0 replies; 10+ messages in thread From: jakub at gcc dot gnu.org @ 2021-05-14 9:52 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92815 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|8.5 |9.4 --- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> --- GCC 8 branch is being closed. ^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug middle-end/92815] [9/10 Regression] spurious -Wstringop-overflow writing into a flexible array of an extern struct [not found] <bug-92815-4@http.gcc.gnu.org/bugzilla/> ` (5 preceding siblings ...) 2021-05-14 9:52 ` [Bug middle-end/92815] [9/10 " jakub at gcc dot gnu.org @ 2021-06-01 8:15 ` rguenth at gcc dot gnu.org 2022-05-27 9:41 ` [Bug middle-end/92815] [10 " rguenth at gcc dot gnu.org ` (2 subsequent siblings) 9 siblings, 0 replies; 10+ messages in thread From: rguenth at gcc dot gnu.org @ 2021-06-01 8:15 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92815 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|9.4 |9.5 --- Comment #11 from Richard Biener <rguenth at gcc dot gnu.org> --- GCC 9.4 is being released, retargeting bugs to GCC 9.5. ^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug middle-end/92815] [10 Regression] spurious -Wstringop-overflow writing into a flexible array of an extern struct [not found] <bug-92815-4@http.gcc.gnu.org/bugzilla/> ` (6 preceding siblings ...) 2021-06-01 8:15 ` rguenth at gcc dot gnu.org @ 2022-05-27 9:41 ` rguenth at gcc dot gnu.org 2022-06-28 10:39 ` jakub at gcc dot gnu.org 2023-07-07 8:45 ` rguenth at gcc dot gnu.org 9 siblings, 0 replies; 10+ messages in thread From: rguenth at gcc dot gnu.org @ 2022-05-27 9:41 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92815 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|9.5 |10.4 --- Comment #12 from Richard Biener <rguenth at gcc dot gnu.org> --- GCC 9 branch is being closed ^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug middle-end/92815] [10 Regression] spurious -Wstringop-overflow writing into a flexible array of an extern struct [not found] <bug-92815-4@http.gcc.gnu.org/bugzilla/> ` (7 preceding siblings ...) 2022-05-27 9:41 ` [Bug middle-end/92815] [10 " rguenth at gcc dot gnu.org @ 2022-06-28 10:39 ` jakub at gcc dot gnu.org 2023-07-07 8:45 ` rguenth at gcc dot gnu.org 9 siblings, 0 replies; 10+ messages in thread From: jakub at gcc dot gnu.org @ 2022-06-28 10:39 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92815 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|10.4 |10.5 --- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> --- GCC 10.4 is being released, retargeting bugs to GCC 10.5. ^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug middle-end/92815] [10 Regression] spurious -Wstringop-overflow writing into a flexible array of an extern struct [not found] <bug-92815-4@http.gcc.gnu.org/bugzilla/> ` (8 preceding siblings ...) 2022-06-28 10:39 ` jakub at gcc dot gnu.org @ 2023-07-07 8:45 ` rguenth at gcc dot gnu.org 9 siblings, 0 replies; 10+ messages in thread From: rguenth at gcc dot gnu.org @ 2023-07-07 8:45 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92815 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Target Milestone|10.5 |11.0 Resolution|--- |FIXED Status|NEW |RESOLVED Known to fail| |10.5.0 --- Comment #14 from Richard Biener <rguenth at gcc dot gnu.org> --- Fixed in GCC 11. ^ permalink raw reply [flat|nested] 10+ messages in thread
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2020-04-22 21:38 ` [Bug middle-end/92815] [8/9/10 Regression] spurious -Wstringop-overflow writing into a flexible array of an extern struct msebor at gcc dot gnu.org
2020-05-18 21:25 ` [Bug middle-end/92815] [8/9/10/11 " cvs-commit at gcc dot gnu.org
2020-05-18 21:26 ` [Bug middle-end/92815] [8/9/10 " msebor at gcc dot gnu.org
2020-05-18 22:33 ` cvs-commit at gcc dot gnu.org
2020-05-25 15:44 ` asolokha at gmx dot com
2021-05-14 9:52 ` [Bug middle-end/92815] [9/10 " jakub at gcc dot gnu.org
2021-06-01 8:15 ` rguenth at gcc dot gnu.org
2022-05-27 9:41 ` [Bug middle-end/92815] [10 " rguenth at gcc dot gnu.org
2022-06-28 10:39 ` jakub at gcc dot gnu.org
2023-07-07 8:45 ` rguenth at gcc dot gnu.org
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