From: Will Hawkins <hawkinsw@obs.cr>
Date: Tue, 20 Feb 2024 12:33:38 +0000 (+0100)
Subject: bpf: Add documentation for the -mcpu option
X-Git-Tag: basepoints/gcc-15~1058
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=97f34ad10da8f46a4a1c17af6fdb950b132e1abc;p=thirdparty%2Fgcc.git

bpf: Add documentation for the -mcpu option

Add documentation describing the meaning and values for the -mcpu
command-line option.

Tested for bpf-unknown-none on x86_64-linux-gnu host.

gcc/ChangeLog:

	* config/bpf/bpf.opt: Add help information for -mcpu.

Signed-off-by: Will Hawkins <hawkinsw@obs.cr>
---

diff --git a/gcc/config/bpf/bpf.opt b/gcc/config/bpf/bpf.opt
index bc5b2220116c..acfddebdad71 100644
--- a/gcc/config/bpf/bpf.opt
+++ b/gcc/config/bpf/bpf.opt
@@ -77,9 +77,11 @@ Enable signed move and memory load instructions.
 
 mcpu=
 Target RejectNegative Joined Var(bpf_isa) Enum(bpf_isa) Init(ISA_V4)
+Select the eBPF ISA version to target in code generation.
 
 Enum
 Name(bpf_isa) Type(enum bpf_isa_version)
+Valid ISA versions (for use with the -mcpu= option)
 
 EnumValue
 Enum(bpf_isa) String(v1) Value(ISA_V1)