From: xtkoba+ruby@gmail.com
To: ruby-core@ruby-lang.org
Subject: [ruby-core:102045] [Ruby master Bug#17532] Remove `"` from `regstr` arguments in `vm_dump.c`
Date: Wed, 13 Jan 2021 02:17:03 +0000 (UTC) [thread overview]
Message-ID: <redmine.issue-17532.20210113021703.48178@ruby-lang.org> (raw)
In-Reply-To: redmine.issue-17532.20210113021703.48178@ruby-lang.org
Issue #17532 has been reported by xtkoba (Tee KOBAYASHI).
----------------------------------------
Bug #17532: Remove `"` from `regstr` arguments in `vm_dump.c`
https://bugs.ruby-lang.org/issues/17532
* Author: xtkoba (Tee KOBAYASHI)
* Status: Open
* Priority: Normal
* ruby -v: ruby 3.0.0p0 (2020-12-25 revision 95aff21468) [aarch64-linux]
* Backport: 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN, 3.0: UNKNOWN
----------------------------------------
On AArch64 Linux, a machine register dump is printed as follows:
```
-- Machine register context ------------------------------------------------
"x0: 0x0000000000000000 "x1: 0x000000000000000b "x2: 0x0000000000000000
"x3: 0x5345475600000000 "x4: 0x0000000000000000 "x5: 0x5345475600000000
"x6: 0x000000000108e600 "x7: 0x000000000000f00f "x1: 0x0000000000000000
"x1: 0x000000000000000b "x2: 0x0000005501286080 "x2: 0x0000000000003020
"x2: 0x0000000000000002 "x2: 0x0000000000000001 "x2: 0x0000000000000001
"x2: 0x0000000000000001 "x2: 0x0000005500b85264 "x2: 0x0000005500b8518c
"x2: 0x0000000000080b90 "x2: 0x00000055007fea30 "sp: 0x00000055007fe970
"fa: 0x0000000000000000
```
As you can see above, the register names are indistinguishable. For example, there are 11 registers labeled `"x2`.
It should be printed as follows:
```
-- Machine register context ------------------------------------------------
x0: 0x0000000000000000 x1: 0x000000000000000b x2: 0x0000000000000000
x3: 0x5345475600000000 x4: 0x0000000000000000 x5: 0x5345475600000000
x6: 0x000000000108e600 x7: 0x000000000000f00f x18: 0x0000000000000000
x19: 0x000000000000000b x20: 0x0000005501286080 x21: 0x0000000000003284
x22: 0x0000000000000002 x23: 0x0000000000000001 x24: 0x0000000000000001
x25: 0x0000000000000001 x26: 0x0000005500b85264 x27: 0x0000005500b8518c
x28: 0x0000000000080b90 x29: 0x00000055007fea30 sp: 0x00000055007fe970
fau: 0x0000000000000000
```
The same goes for ARM Linux.
---Files--------------------------------
ruby-vm_dump-arm-regstr.patch (3.37 KB)
--
https://bugs.ruby-lang.org/
parent reply other threads:[~2021-01-13 2:17 UTC|newest]
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