diff options
| author | Mike Frysinger <vapier@gentoo.org> | 2013-09-29 03:57:33 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2013-09-29 03:57:33 +0000 |
| commit | d1a5889eb78d960adc5b60ce215ef428aaa9f42d (patch) | |
| tree | 9983c6e05bbe377d1d54657a166cff133d1a5521 /gdb/gdbserver | |
| parent | b2c30ccf8938f4e7705413b3408a690f981fb6e0 (diff) | |
| download | gdb-d1a5889eb78d960adc5b60ce215ef428aaa9f42d.tar.gz | |
gdb: btrace: fix build errors on older glibc builds
It is possible to have a build of glibc where SYS_perf_event_open is not
defined (because when the glibc was compiled, the syscall did not exist),
but have newer kernel headers installed so that linux/perf_event.h is
available. In this setup, you get a build failure:
./common/linux-btrace.c: In function 'kernel_supports_btrace':
./common/linux-btrace.c:316:23: error: 'SYS_perf_event_open' undeclared (first use in this function)
Update the ifdef check to also see if the syscall is available.
URL: https://bugs.gentoo.org/473522
Reported-by: William Throwe <wtt6@cornell.edu>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'gdb/gdbserver')
| -rw-r--r-- | gdb/gdbserver/ChangeLog | 5 | ||||
| -rw-r--r-- | gdb/gdbserver/config.in | 3 | ||||
| -rwxr-xr-x | gdb/gdbserver/configure | 2 | ||||
| -rw-r--r-- | gdb/gdbserver/configure.ac | 2 |
4 files changed, 10 insertions, 2 deletions
diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog index da57151d2de..460d9a12057 100644 --- a/gdb/gdbserver/ChangeLog +++ b/gdb/gdbserver/ChangeLog @@ -1,3 +1,8 @@ +2013-09-28 Mike Frysinger <vapier@gentoo.org> + + * configure.ac (AC_CHECK_HEADERS): Add sys/syscall.h + * config.in, configure: Regenerated. + 2013-09-18 Yao Qi <yao@codesourcery.com> PR server/15959 diff --git a/gdb/gdbserver/config.in b/gdb/gdbserver/config.in index 7f23a31796a..9398413124a 100644 --- a/gdb/gdbserver/config.in +++ b/gdb/gdbserver/config.in @@ -199,6 +199,9 @@ /* Define to 1 if you have the <sys/stat.h> header file. */ #undef HAVE_SYS_STAT_H +/* Define to 1 if you have the <sys/syscall.h> header file. */ +#undef HAVE_SYS_SYSCALL_H + /* Define to 1 if you have the <sys/types.h> header file. */ #undef HAVE_SYS_TYPES_H diff --git a/gdb/gdbserver/configure b/gdb/gdbserver/configure index 193aedc27b0..55dba8400e6 100755 --- a/gdb/gdbserver/configure +++ b/gdb/gdbserver/configure @@ -4873,7 +4873,7 @@ $as_echo "$as_me: running $SHELL $ac_sub_configure $ac_sub_configure_args --cach cd "$ac_popdir" -for ac_header in sgtty.h termio.h termios.h sys/reg.h string.h proc_service.h sys/procfs.h thread_db.h linux/elf.h stdlib.h errno.h fcntl.h signal.h sys/file.h malloc.h sys/ioctl.h netinet/in.h sys/socket.h netdb.h netinet/tcp.h arpa/inet.h sys/wait.h wait.h sys/un.h linux/perf_event.h +for ac_header in sgtty.h termio.h termios.h sys/reg.h string.h proc_service.h sys/procfs.h thread_db.h linux/elf.h stdlib.h errno.h fcntl.h signal.h sys/file.h malloc.h sys/ioctl.h netinet/in.h sys/socket.h netdb.h netinet/tcp.h arpa/inet.h sys/wait.h wait.h sys/un.h linux/perf_event.h sys/syscall.h do : as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh` ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default" diff --git a/gdb/gdbserver/configure.ac b/gdb/gdbserver/configure.ac index 456a1f76b6c..c1675086c0b 100644 --- a/gdb/gdbserver/configure.ac +++ b/gdb/gdbserver/configure.ac @@ -84,7 +84,7 @@ AC_CHECK_HEADERS(sgtty.h termio.h termios.h sys/reg.h string.h dnl errno.h fcntl.h signal.h sys/file.h malloc.h dnl sys/ioctl.h netinet/in.h sys/socket.h netdb.h dnl netinet/tcp.h arpa/inet.h sys/wait.h wait.h sys/un.h dnl - linux/perf_event.h) + linux/perf_event.h sys/syscall.h) AC_CHECK_FUNCS(pread pwrite pread64 readlink fdwalk pipe2) AC_REPLACE_FUNCS(vasprintf vsnprintf) |