https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83781
Bug ID: 83781 Summary: [8 Regression] Bootstrap failed on x86 Product: gcc Version: 8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: hjl.tools at gmail dot com CC: msebor at gcc dot gnu.org Target Milestone: --- I got trunk/gcc/hsa-dump.c ../../src-trunk/gcc/hsa-dump.c: In function ‘void dump_hsa_symbol(FILE*, hsa_symbol*)’: ../../src-trunk/gcc/hsa-dump.c:784:21: error: ‘%s’ directive writing up to 71 bytes into a region of size 62 [-Werror=format-overflow=] sprintf (buf, "__%s_%i", hsa_seg_name (symbol->m_segment), ^~~~~~~~~ ../../src-trunk/gcc/hsa-dump.c:784:15: note: ‘sprintf’ output between 5 and 86 bytes into a destination of size 64 sprintf (buf, "__%s_%i", hsa_seg_name (symbol->m_segment), ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ symbol->m_name_number); and ../../src-trunk/gcc/config/i386/i386.c: In function 'const char* output_set_got(rtx, rtx)': ../../src-trunk/gcc/config/i386/i386.c:10653:20: error: '%s' directive writing up to 323 bytes into a region of size 13 [-Werror=format-overflow=] sprintf (name, "__x86.get_pc_thunk.%s", reg_names[regno]); ^~~~~~~~~~~~~~~~~~~~~~~ ../../src-trunk/gcc/config/i386/i386.c:10653:13: note: 'sprintf' output between 20 and 343 bytes into a destination of size 32 sprintf (name, "__x86.get_pc_thunk.%s", reg_names[regno]); ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ r256454 is OK and r25646 failed. It may be caused by r256457.