Date: Tue, 29 Dec 2015 03:45:26 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-amd64@FreeBSD.org Subject: [Bug 205684] putc function coredump Message-ID: <bug-205684-6@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D205684 Bug ID: 205684 Summary: putc function coredump Product: Base System Version: 10.2-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Only Me Priority: --- Component: gnu Assignee: freebsd-bugs@FreeBSD.org Reporter: snrtcel@126.com CC: freebsd-amd64@FreeBSD.org CC: freebsd-amd64@FreeBSD.org Created attachment 164798 --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D164798&action= =3Dedit code, coredump files mine system infomation as below: FreeBSD y2ghost.bsd 10.2-RELEASE FreeBSD 10.2-RELEASE #0 r286666: Wed Aug 12 15:26:37 UTC 2015 root@releng1.nyi.freebsd.org:/usr/obj/usr/src/sys/GEN= ERIC amd64 mine code as beblow: =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D #include <stdio.h> int main(int ac, char *av[]) { int c =3D 0; while (1) { c =3D getc(stdin); if (EOF =3D=3D c) { break; } c =3D putc(c, stdout); if (EOF =3D=3D c) { break; } } if (0 !=3D ferror(stdin)) { printf("%s\n", "input error"); } return 0; } =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D then cc -g xx.c ./a.out=20 asdfkaasdfds^\[1] 1485 quit (core dumped) ./a.out I press ctrl+\, then a.out coredump, the frame infomation as beblow Loaded symbols for /libexec/ld-elf.so.1 #0 0x0000000800964f08 in _read () from /lib/libc.so.7 (gdb) bt #0 0x0000000800964f08 in _read () from /lib/libc.so.7 #1 0x0000000800964840 in memmove () from /lib/libc.so.7 #2 0x000000080094be47 in __srget () from /lib/libc.so.7 #3 0x000000080094bcfe in __srget () from /lib/libc.so.7 #4 0x00000000004009db in main (ac=3D1, av=3D0x7fffffffeb68) at y.c:7 (gdb) l 7 c =3D getc(stdin); 8 if (EOF =3D=3D c) { 9 break; 10 } 11=20=20=20=20=20=20 12 c =3D putc(c, stdout); 13 if (EOF =3D=3D c) { 14 break; 15 } 16 } --=20 You are receiving this mail because: You are on the CC list for the bug.=
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