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authorKenjiro Nakayama <nakayamakenjiro@gmail.com>2023-05-04 12:54:43 +0900
committerAndrii Nakryiko <andrii@kernel.org>2023-05-04 17:11:04 -0700
commit7866fc6aa0deb2294eb781fc3ac94b7d4c6eb242 (patch)
treeeed353eedc42ec0c6c054795c43829a48c95d0b7 /tools/lib/bpf/bpf_tracing.h
parentfedf99200ab086c42a572fca1d7266b06cdc3e3f (diff)
libbpf: Fix comment about arc and riscv arch in bpf_tracing.h
To make comments about arc and riscv arch in bpf_tracing.h accurate, this patch fixes the comment about arc and adds the comment for riscv. Signed-off-by: Kenjiro Nakayama <nakayamakenjiro@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20230504035443.427927-1-nakayamakenjiro@gmail.com
Diffstat (limited to 'tools/lib/bpf/bpf_tracing.h')
-rw-r--r--tools/lib/bpf/bpf_tracing.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/lib/bpf/bpf_tracing.h b/tools/lib/bpf/bpf_tracing.h
index 6fb3d0f9af17..be076a4041ab 100644
--- a/tools/lib/bpf/bpf_tracing.h
+++ b/tools/lib/bpf/bpf_tracing.h
@@ -351,6 +351,7 @@ struct pt_regs___arm64 {
* https://github.com/riscv-non-isa/riscv-elf-psabi-doc/blob/master/riscv-cc.adoc#risc-v-calling-conventions
*/
+/* riscv provides struct user_regs_struct instead of struct pt_regs to userspace */
#define __PT_REGS_CAST(x) ((const struct user_regs_struct *)(x))
#define __PT_PARM1_REG a0
#define __PT_PARM2_REG a1
@@ -383,7 +384,7 @@ struct pt_regs___arm64 {
* https://raw.githubusercontent.com/wiki/foss-for-synopsys-dwc-arc-processors/toolchain/files/ARCv2_ABI.pdf
*/
-/* arc provides struct user_pt_regs instead of struct pt_regs to userspace */
+/* arc provides struct user_regs_struct instead of struct pt_regs to userspace */
#define __PT_REGS_CAST(x) ((const struct user_regs_struct *)(x))
#define __PT_PARM1_REG scratch.r0
#define __PT_PARM2_REG scratch.r1