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Rao" Cc: bpf@vger.kernel.org, Ilya Leoshkevich Subject: [PATCH bpf-next v3 00/11] libbpf: Fix accessing syscall arguments Date: Fri, 4 Feb 2022 15:50:07 +0100 Message-Id: <20220204145018.1983773-1-iii@linux.ibm.com> X-Mailer: git-send-email 2.34.1 X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 9oasV-A2uSd6QgmjeOc2ahEt36skzCof X-Proofpoint-ORIG-GUID: MFkO5igDbX6GuEojpPR1CSqTABl7X9UY Content-Transfer-Encoding: 8bit X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.816,Hydra:6.0.425,FMLib:17.11.62.513 definitions=2022-02-04_05,2022-02-03_01,2021-12-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 spamscore=0 mlxlogscore=999 priorityscore=1501 phishscore=0 suspectscore=0 impostorscore=0 bulkscore=0 clxscore=1015 malwarescore=0 adultscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2201110000 definitions=main-2202040082 Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org libbpf now has macros to access syscall arguments in an architecture-agnostic manner, but unfortunately they have a number of issues on non-Intel arches, which this series aims to fix. v1: https://lore.kernel.org/bpf/20220201234200.1836443-1-iii@linux.ibm.com/ v1 -> v2: * Put orig_gpr2 in place of args[1] on s390 (Vasily). * Fix arm64, powerpc and riscv (Heiko). v2: https://lore.kernel.org/bpf/20220204041955.1958263-1-iii@linux.ibm.com/ v2 -> v3: * Undo args[1] change (Andrii). * Rename PT_REGS_SYSCALL to PT_REGS_SYSCALL_REGS (Andrii). * Split the riscv patch (Andrii). +cc Naveen. Ilya Leoshkevich (11): arm64/bpf: Add orig_x0 to user_pt_regs s390/bpf: Add orig_gpr2 to user_pt_regs selftests/bpf: Fix an endianness issue in bpf_syscall_macro test libbpf: Add __PT_PARM1_REG_SYSCALL macro libbpf: Add PT_REGS_SYSCALL_REGS macro selftests/bpf: Use PT_REGS_SYSCALL_REGS in bpf_syscall_macro libbpf: Fix accessing the first syscall argument on arm64 libbpf: Fix accessing syscall arguments on powerpc libbpf: Fix accessing program counter on riscv libbpf: Fix accessing syscall arguments on riscv libbpf: Fix accessing the first syscall argument on s390 arch/arm64/include/asm/ptrace.h | 2 +- arch/arm64/include/uapi/asm/ptrace.h | 1 + arch/s390/include/asm/ptrace.h | 2 +- arch/s390/include/uapi/asm/ptrace.h | 1 + tools/lib/bpf/bpf_tracing.h | 23 ++++++++++++++++++- .../selftests/bpf/progs/bpf_syscall_macro.c | 7 ++++-- 6 files changed, 31 insertions(+), 5 deletions(-) -- 2.34.1