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a701d28e2d
Support the MIPS architecture using the ins_ops association method. With
this patch, perf-annotate can work well on MIPS.
Testing it with a perf.data file collected on a mips machine:
$./perf annotate -i perf.data
: Disassembly of section .text:
:
: 00000000000be6a0 <get_next_seq>:
: get_next_seq():
0.00 : be6a0: lw v0,0(a0)
0.00 : be6a4: daddiu sp,sp,-128
0.00 : be6a8: ld a7,72(a0)
0.00 : be6ac: gssq s5,s4,80(sp)
0.00 : be6b0: gssq s1,s0,48(sp)
0.00 : be6b4: gssq s8,gp,112(sp)
0.00 : be6b8: gssq s7,s6,96(sp)
0.00 : be6bc: gssq s3,s2,64(sp)
0.00 : be6c0: sd a3,0(sp)
0.00 : be6c4: move s0,a0
0.00 : be6c8: sd v0,32(sp)
0.00 : be6cc: sd a5,8(sp)
0.00 : be6d0: sd zero,8(a0)
0.00 : be6d4: sd a6,16(sp)
0.00 : be6d8: ld s2,48(a0)
8.53 : be6dc: ld s1,40(a0)
9.42 : be6e0: ld v1,32(a0)
0.00 : be6e4: nop
0.00 : be6e8: ld s4,24(a0)
0.00 : be6ec: ld s5,16(a0)
0.00 : be6f0: sd a7,40(sp)
10.11 : be6f4: ld s6,64(a0)
...
The original patch link:
https://lore.kernel.org/patchwork/patch/1180480/
Signed-off-by: Dengcheng Zhu <dzhu@wavecomp.com>
Cc: Dengcheng Zhu <dzhu@wavecomp.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Xuefeng Li <lixuefeng@loongson.cn>
Cc: linux-mips@vger.kernel.org
[ fanpeng@loongson.cn: Add missing "bgtzl", "bltzl", "bgezl", "blezl", "beql" and "bnel" for pre-R6processors ]
Signed-off-by: Peng Fan <fanpeng@loongson.cn>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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static
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struct ins_ops *mips__associate_ins_ops(struct arch *arch, const char *name)
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{
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struct ins_ops *ops = NULL;
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if (!strncmp(name, "bal", 3) ||
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!strncmp(name, "bgezal", 6) ||
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!strncmp(name, "bltzal", 6) ||
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!strncmp(name, "bgtzal", 6) ||
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!strncmp(name, "blezal", 6) ||
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!strncmp(name, "beqzal", 6) ||
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!strncmp(name, "bnezal", 6) ||
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!strncmp(name, "bgtzl", 5) ||
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!strncmp(name, "bltzl", 5) ||
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!strncmp(name, "bgezl", 5) ||
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!strncmp(name, "blezl", 5) ||
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!strncmp(name, "jialc", 5) ||
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!strncmp(name, "beql", 4) ||
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!strncmp(name, "bnel", 4) ||
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!strncmp(name, "jal", 3))
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ops = &call_ops;
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else if (!strncmp(name, "jr", 2))
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ops = &ret_ops;
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else if (name[0] == 'j' || name[0] == 'b')
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ops = &jump_ops;
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else
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return NULL;
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arch__associate_ins_ops(arch, name, ops);
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return ops;
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}
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static
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int mips__annotate_init(struct arch *arch, char *cpuid __maybe_unused)
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{
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if (!arch->initialized) {
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arch->associate_instruction_ops = mips__associate_ins_ops;
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arch->initialized = true;
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arch->objdump.comment_char = '#';
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}
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return 0;
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}
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