diff options
| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2025-07-22 12:55:50 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2025-07-24 15:51:58 -0300 |
| commit | 20528165bda5286f8c5c2d20200699a354eb9a0a (patch) | |
| tree | b5e7f0e463d4122d5c9c5f24c3df956adfbfd18f /sysdeps/x86_64 | |
| parent | ce488f7c1615bc2f6fe96ff4d51456e470aa5805 (diff) | |
Disable SFrame support by default
And add extra checks to enable for binutils 2.45 and if the architecture
explicitly enables it. When SFrame is disabled, all the related code
is also not enabled for backtrace() and _dl_find_object(), so SFrame
backtracking is not used even if the binary has the SFrame segment.
This patch also adds some other related fixes:
* Fixed an issue with AC_CHECK_PROG_VER, where the READELF_SFRAME
usage prevented specifying a different readelf through READELF
environment variable at configure time.
* Add an extra arch-specific internal definition,
libc_cv_support_sframe, to disable --enable-sframe on architectures
that have binutils but not glibc support (s390x).
* Renamed the tests without the .sframe segment and move the
tst-backtrace1 from pthread to debug.
* Use the built compiler strip to remove the .sframe segment,
instead of the system one (which might not support SFrame).
Checked on x86_64-linux-gnu and aarch64-linux-gnu.
Reviewed-by: Sam James <sam@gentoo.org>
Diffstat (limited to 'sysdeps/x86_64')
| -rw-r--r-- | sysdeps/x86_64/configure | 2 | ||||
| -rw-r--r-- | sysdeps/x86_64/configure.ac | 2 |
2 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/x86_64/configure b/sysdeps/x86_64/configure index bbf520bfc9..32324f62da 100644 --- a/sysdeps/x86_64/configure +++ b/sysdeps/x86_64/configure @@ -289,6 +289,8 @@ fi config_vars="$config_vars have-x86-apx = $libc_cv_x86_have_apx" +libc_cv_support_sframe=yes + test -n "$critic_missing" && as_fn_error $? " *** $critic_missing" "$LINENO" 5 diff --git a/sysdeps/x86_64/configure.ac b/sysdeps/x86_64/configure.ac index 4a3f7f4541..a00958e219 100644 --- a/sysdeps/x86_64/configure.ac +++ b/sysdeps/x86_64/configure.ac @@ -104,5 +104,7 @@ if test $libc_cv_x86_have_apx = yes; then fi LIBC_CONFIG_VAR([have-x86-apx], [$libc_cv_x86_have_apx]) +libc_cv_support_sframe=yes + test -n "$critic_missing" && AC_MSG_ERROR([ *** $critic_missing]) |