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authorJose E. Marchesi <jose.marchesi@oracle.com>2020-05-19 11:46:06 +0200
committerJose E. Marchesi <jose.marchesi@oracle.com>2020-05-19 11:46:06 +0200
commit51e10276d6792f67f1d88d90f299e7ac1b1f1f24 (patch)
treedb79e5d61bc6943638ff57d37f6b4ad2e1264a01
parent00243d9a640a14413c4e051447e09741a543deae (diff)
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bpf: add support for the -mxbpf option
This patch adds support for a new option -mxbpf. This tells GCC to generate code for an expanded version of BPF that relaxes some of the restrictions imposed by BPF. 2020-05-19 Jose E. Marchesi <jose.marchesi@oracle.com> gcc/ * config/bpf/bpf.opt (mxbpf): New option. * doc/invoke.texi (Option Summary): Add -mxbpf. (eBPF Options): Document -mxbbpf.
-rw-r--r--gcc/ChangeLog6
-rw-r--r--gcc/config/bpf/bpf.opt6
-rw-r--r--gcc/doc/invoke.texi6
3 files changed, 17 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 418fec4..ef3bcee 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2020-05-19 Jose E. Marchesi <jose.marchesi@oracle.com>
+
+ * config/bpf/bpf.opt (mxbpf): New option.
+ * doc/invoke.texi (Option Summary): Add -mxbpf.
+ (eBPF Options): Document -mxbbpf.
+
2020-05-19 Uroš Bizjak <ubizjak@gmail.com>
PR target/92658
diff --git a/gcc/config/bpf/bpf.opt b/gcc/config/bpf/bpf.opt
index 78b93c5..6aa8584 100644
--- a/gcc/config/bpf/bpf.opt
+++ b/gcc/config/bpf/bpf.opt
@@ -108,6 +108,12 @@ Enum(bpf_kernel) String(5.1) Value(LINUX_V5_1)
EnumValue
Enum(bpf_kernel) String(5.2) Value(LINUX_V5_2)
+; Use xBPF extensions.
+
+mxbpf
+Target Report Mask(XBPF)
+Generate xBPF.
+
; Selecting big endian or little endian targets.
mbig-endian
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 850aeac..0c33deb 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -862,7 +862,7 @@ Objective-C and Objective-C++ Dialects}.
@emph{eBPF Options}
@gccoptlist{-mbig-endian -mlittle-endian -mkernel=@var{version}
--mframe-limit=@var{bytes}}
+-mframe-limit=@var{bytes} -mxbpf}
@emph{FR30 Options}
@gccoptlist{-msmall-model -mno-lsim}
@@ -21013,6 +21013,10 @@ Generate code for a big-endian target.
@item -mlittle-endian
@opindex mlittle-endian
Generate code for a little-endian target. This is the default.
+
+@item -mxbpf
+Generate code for an expanded version of BPF, which relaxes some of
+the restrictions imposed by the BPF architecture.
@end table
@node FR30 Options