From 0ab41886648bb75b951bd41d8b5cecaca8e0ad66 Mon Sep 17 00:00:00 2001 From: David Miller Date: Tue, 16 Oct 2018 20:55:55 -0700 Subject: perf annotate: Add Sparc support MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit E.g.: $ perf annotate --stdio2 Samples: 7K of event 'cycles:ppp', 4000 Hz, Event count (approx.): 3086733887 __gettimeofday /lib32/libc-2.27.so [Percent: local period] Percent│ │ │ │ Disassembly of section .text: │ │ 000a6fa0 <__gettimeofday@@GLIBC_2.0>: 0.47 │ save %sp, -96, %sp 0.73 │ sethi %hi(0xe9000), %l7 │ → call __frame_state_for@@GLIBC_2.0+0x480 0.30 │ add %l7, 0x58, %l7 ! e9058 1.33 │ mov %i0, %o0 │ mov %i1, %o1 0.43 │ mov 0x74, %g1 │ ta 0x10 88.92 │ ↓ bcc 30 2.95 │ clr %g1 │ neg %o0 │ mov 1, %g1 0.31 │30: cmp %g1, 0 │ bne,pn %icc, a6fe4 <__gettimeofday@@GLIBC_2.0+0x44> │ mov %o0, %i0 1.96 │ ← return %i7 + 8 2.62 │ nop │ sethi %hi(0), %g1 │ neg %o0, %g2 │ add %g1, 0x160, %g1 │ ld [ %l7 + %g1 ], %g1 │ st %g2, [ %g7 + %g1 ] │ ← return %i7 + 8 │ mov -1, %o0 Signed-off-by: David S. Miller Link: http://lkml.kernel.org/r/20181016.205555.1070918198627611771.davem@davemloft.net Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/arch/sparc/annotate/instructions.c | 169 ++++++++++++++++++++++++++ 1 file changed, 169 insertions(+) create mode 100644 tools/perf/arch/sparc/annotate/instructions.c (limited to 'tools/perf/arch/sparc') diff --git a/tools/perf/arch/sparc/annotate/instructions.c b/tools/perf/arch/sparc/annotate/instructions.c new file mode 100644 index 000000000000..2614c010c235 --- /dev/null +++ b/tools/perf/arch/sparc/annotate/instructions.c @@ -0,0 +1,169 @@ +// SPDX-License-Identifier: GPL-2.0 + +static int is_branch_cond(const char *cond) +{ + if (cond[0] == '\0') + return 1; + + if (cond[0] == 'a' && cond[1] == '\0') + return 1; + + if (cond[0] == 'c' && + (cond[1] == 'c' || cond[1] == 's') && + cond[2] == '\0') + return 1; + + if (cond[0] == 'e' && + (cond[1] == '\0' || + (cond[1] == 'q' && cond[2] == '\0'))) + return 1; + + if (cond[0] == 'g' && + (cond[1] == '\0' || + (cond[1] == 't' && cond[2] == '\0') || + (cond[1] == 'e' && cond[2] == '\0') || + (cond[1] == 'e' && cond[2] == 'u' && cond[3] == '\0'))) + return 1; + + if (cond[0] == 'l' && + (cond[1] == '\0' || + (cond[1] == 't' && cond[2] == '\0') || + (cond[1] == 'u' && cond[2] == '\0') || + (cond[1] == 'e' && cond[2] == '\0') || + (cond[1] == 'e' && cond[2] == 'u' && cond[3] == '\0'))) + return 1; + + if (cond[0] == 'n' && + (cond[1] == '\0' || + (cond[1] == 'e' && cond[2] == '\0') || + (cond[1] == 'z' && cond[2] == '\0') || + (cond[1] == 'e' && cond[2] == 'g' && cond[3] == '\0'))) + return 1; + + if (cond[0] == 'b' && + cond[1] == 'p' && + cond[2] == 'o' && + cond[3] == 's' && + cond[4] == '\0') + return 1; + + if (cond[0] == 'v' && + (cond[1] == 'c' || cond[1] == 's') && + cond[2] == '\0') + return 1; + + if (cond[0] == 'b' && + cond[1] == 'z' && + cond[2] == '\0') + return 1; + + return 0; +} + +static int is_branch_reg_cond(const char *cond) +{ + if ((cond[0] == 'n' || cond[0] == 'l') && + cond[1] == 'z' && + cond[2] == '\0') + return 1; + + if (cond[0] == 'z' && + cond[1] == '\0') + return 1; + + if ((cond[0] == 'g' || cond[0] == 'l') && + cond[1] == 'e' && + cond[2] == 'z' && + cond[3] == '\0') + return 1; + + if (cond[0] == 'g' && + cond[1] == 'z' && + cond[2] == '\0') + return 1; + + return 0; +} + +static int is_branch_float_cond(const char *cond) +{ + if (cond[0] == '\0') + return 1; + + if ((cond[0] == 'a' || cond[0] == 'e' || + cond[0] == 'z' || cond[0] == 'g' || + cond[0] == 'l' || cond[0] == 'n' || + cond[0] == 'o' || cond[0] == 'u') && + cond[1] == '\0') + return 1; + + if (((cond[0] == 'g' && cond[1] == 'e') || + (cond[0] == 'l' && (cond[1] == 'e' || + cond[1] == 'g')) || + (cond[0] == 'n' && (cond[1] == 'e' || + cond[1] == 'z')) || + (cond[0] == 'u' && (cond[1] == 'e' || + cond[1] == 'g' || + cond[1] == 'l'))) && + cond[2] == '\0') + return 1; + + if (cond[0] == 'u' && + (cond[1] == 'g' || cond[1] == 'l') && + cond[2] == 'e' && + cond[3] == '\0') + return 1; + + return 0; +} + +static struct ins_ops *sparc__associate_instruction_ops(struct arch *arch, const char *name) +{ + struct ins_ops *ops = NULL; + + if (!strcmp(name, "call") || + !strcmp(name, "jmp") || + !strcmp(name, "jmpl")) { + ops = &call_ops; + } else if (!strcmp(name, "ret") || + !strcmp(name, "retl") || + !strcmp(name, "return")) { + ops = &ret_ops; + } else if (!strcmp(name, "mov")) { + ops = &mov_ops; + } else { + if (name[0] == 'c' && + (name[1] == 'w' || name[1] == 'x')) + name += 2; + + if (name[0] == 'b') { + const char *cond = name + 1; + + if (cond[0] == 'r') { + if (is_branch_reg_cond(cond + 1)) + ops = &jump_ops; + } else if (is_branch_cond(cond)) { + ops = &jump_ops; + } + } else if (name[0] == 'f' && name[1] == 'b') { + if (is_branch_float_cond(name + 2)) + ops = &jump_ops; + } + } + + if (ops) + arch__associate_ins_ops(arch, name, ops); + + return ops; +} + +static int sparc__annotate_init(struct arch *arch, char *cpuid __maybe_unused) +{ + if (!arch->initialized) { + arch->initialized = true; + arch->associate_instruction_ops = sparc__associate_instruction_ops; + arch->objdump.comment_char = '#'; + } + + return 0; +} -- cgit v1.2.3-59-g8ed1b