067012974c
gcc version: 11.0.0 20210208 (experimental) (GCC)
Following build error on arm64:
.......
In function ‘printf’,
inlined from ‘regs_dump__printf’ at util/session.c:1141:3,
inlined from ‘regs__printf’ at util/session.c:1169:2:
/usr/include/aarch64-linux-gnu/bits/stdio2.h:107:10: \
error: ‘%-5s’ directive argument is null [-Werror=format-overflow=]
107 | return __printf_chk (__USE_FORTIFY_LEVEL - 1, __fmt, \
__va_arg_pack ());
......
In function ‘fprintf’,
inlined from ‘perf_sample__fprintf_regs.isra’ at \
builtin-script.c:622:14:
/usr/include/aarch64-linux-gnu/bits/stdio2.h💯10: \
error: ‘%5s’ directive argument is null [-Werror=format-overflow=]
100 | return __fprintf_chk (__stream, __USE_FORTIFY_LEVEL - 1, __fmt,
101 | __va_arg_pack ());
cc1: all warnings being treated as errors
.......
This patch fixes Wformat-overflow warnings. Add helper function to
convert NULL to "unknown".
Signed-off-by: Jianlin Lv <Jianlin.Lv@arm.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anju T Sudhakar <anju@linux.vnet.ibm.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Guo Ren <guoren@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: iecedge@gmail.com
Cc: linux-csky@vger.kernel.org
Cc: linux-riscv@lists.infradead.org
Link: http://lore.kernel.org/lkml/20210218031245.2078492-1-Jianlin.Lv@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
61 lines
1.1 KiB
C
61 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef ARCH_PERF_REGS_H
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#define ARCH_PERF_REGS_H
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#include <stdlib.h>
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#include <linux/types.h>
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#include <asm/perf_regs.h>
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void perf_regs_load(u64 *regs);
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#define PERF_REGS_MASK ((1ULL << PERF_REG_ARM_MAX) - 1)
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#define PERF_REGS_MAX PERF_REG_ARM_MAX
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#define PERF_SAMPLE_REGS_ABI PERF_SAMPLE_REGS_ABI_32
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#define PERF_REG_IP PERF_REG_ARM_PC
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#define PERF_REG_SP PERF_REG_ARM_SP
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static inline const char *__perf_reg_name(int id)
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{
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switch (id) {
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case PERF_REG_ARM_R0:
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return "r0";
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case PERF_REG_ARM_R1:
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return "r1";
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case PERF_REG_ARM_R2:
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return "r2";
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case PERF_REG_ARM_R3:
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return "r3";
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case PERF_REG_ARM_R4:
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return "r4";
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case PERF_REG_ARM_R5:
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return "r5";
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case PERF_REG_ARM_R6:
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return "r6";
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case PERF_REG_ARM_R7:
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return "r7";
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case PERF_REG_ARM_R8:
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return "r8";
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case PERF_REG_ARM_R9:
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return "r9";
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case PERF_REG_ARM_R10:
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return "r10";
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case PERF_REG_ARM_FP:
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return "fp";
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case PERF_REG_ARM_IP:
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return "ip";
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case PERF_REG_ARM_SP:
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return "sp";
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case PERF_REG_ARM_LR:
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return "lr";
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case PERF_REG_ARM_PC:
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return "pc";
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default:
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return NULL;
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}
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return NULL;
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}
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#endif /* ARCH_PERF_REGS_H */
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