diff options
| author | Prakash Surya <[email protected]> | 2020-02-03 09:21:05 -0800 |
|---|---|---|
| committer | GitHub <[email protected]> | 2020-02-03 09:21:05 -0800 |
| commit | 147622b2f1e5d8c51b1aeb4735d5e0fa5c91ff78 (patch) | |
| tree | 85f977aa55292b3515fe3628c7bcf894342293ec | |
| parent | 591505dc2737bcd77c587e369e1d91b0fd97325c (diff) | |
Disable "-fipa-sra" when using "--enable-debuginfo"
To better enable dynamic tracing tools (e.g. "bpftrace") this change
disables the "-fipa-sra" compilation optimization. This way, function
signatures are not changed by the compiler, which allows us to better
attach to kprobes and kretprobes with dynamic tracing tools. Otherwise,
the compiler may append ".isra" to the function name, and possibly
change the function arguments as well.
Reviewed-by: Matt Ahrens <[email protected]>
Reviewed-by: Brian Behlendorf <[email protected]>
Reviewed-by: Igor Kozhukhov <[email protected]>
Reviewed-by: George Melikov <[email protected]>
Signed-off-by: Prakash Surya <[email protected]>
Closes #9921
| -rw-r--r-- | config/zfs-build.m4 | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/config/zfs-build.m4 b/config/zfs-build.m4 index 91fe04844..5b53e9c5c 100644 --- a/config/zfs-build.m4 +++ b/config/zfs-build.m4 @@ -59,9 +59,9 @@ AC_DEFUN([ZFS_AC_DEBUG], [ ]) AC_DEFUN([ZFS_AC_DEBUGINFO_ENABLE], [ - DEBUG_CFLAGS="$DEBUG_CFLAGS -g -fno-inline" + DEBUG_CFLAGS="$DEBUG_CFLAGS -g -fno-inline -fno-ipa-sra" - KERNEL_DEBUG_CFLAGS="$KERNEL_DEBUG_CFLAGS -fno-inline" + KERNEL_DEBUG_CFLAGS="$KERNEL_DEBUG_CFLAGS -fno-inline -fno-ipa-sra" KERNEL_MAKE="$KERNEL_MAKE CONFIG_DEBUG_INFO=y" DEBUGINFO_ZFS="_with_debuginfo" |