From: Andreas Schwab <schwab@suse.de>
To: Tsukasa OI <research_trasio@irq.a4lg.com>
Cc: gdb-patches@sourceware.org
Subject: Re: [PATCH 2/2] gdb/riscv: Fix buffer overflow on riscv_insn::fetch_instruction
Date: Tue, 04 Oct 2022 11:25:49 +0200 [thread overview]
Message-ID: <mvmwn9ggcte.fsf@suse.de> (raw)
In-Reply-To: <29872020-9f00-b639-717e-a31a3e614210@irq.a4lg.com> (Tsukasa OI's message of "Tue, 4 Oct 2022 18:14:55 +0900")
On Okt 04 2022, Tsukasa OI wrote:
> That's technically possible but it will make something like...
> 8 + 2 + 2 * ((1 << 3) - 1 - 1)
That's still a magic number that doesn't adapt.
> Defining RISCV_MAX_INSN_LEN might be a slightly better solution (still,
> content of RISCV_MAX_INSN_LEN will be a magic number).
If that number is then used as the base for the other dependencies, it's
a win.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
next prev parent reply other threads:[~2022-10-04 9:25 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-04 8:59 [PATCH 0/2] RISC-V: Fix buffer overflow after long instruction support Tsukasa OI
2022-10-04 8:59 ` [PATCH 1/2] RISC-V: Fix buffer overflow on print_insn_riscv Tsukasa OI
2022-10-04 8:59 ` [PATCH 2/2] gdb/riscv: Fix buffer overflow on riscv_insn::fetch_instruction Tsukasa OI
2022-10-04 9:04 ` Andreas Schwab
2022-10-04 9:14 ` Tsukasa OI
2022-10-04 9:25 ` Andreas Schwab [this message]
2022-10-04 9:28 ` Tsukasa OI
2022-10-04 9:07 ` [PATCH 0/2] RISC-V: Fix buffer overflow after long instruction support Jan Beulich
2022-10-04 9:26 ` Tsukasa OI
2022-10-04 9:44 ` Jan Beulich
2022-10-04 9:47 ` Tsukasa OI
2022-10-04 9:45 ` [PATCH v2 0/2] RISC-V: Fix buffer overflow after 176-bit " Tsukasa OI
2022-10-04 9:45 ` [PATCH v2 1/2] RISC-V: Fix buffer overflow on print_insn_riscv Tsukasa OI
2022-10-04 9:58 ` Jan Beulich
2022-10-04 10:13 ` Tsukasa OI
2022-10-04 10:16 ` Jan Beulich
2022-10-04 10:18 ` Jan Beulich
2022-10-04 9:45 ` [PATCH v2 2/2] gdb/riscv: Partial support for instructions up to 176-bits Tsukasa OI
2022-10-04 11:25 ` [PATCH v3 0/2] RISC-V: Fix buffer overflow after 176-bit instruction support Tsukasa OI
2022-10-04 11:25 ` [PATCH v3 1/2] RISC-V: Fix buffer overflow on print_insn_riscv Tsukasa OI
2022-10-04 11:25 ` [PATCH v3 2/2] gdb/riscv: Partial support for instructions up to 176-bit Tsukasa OI
2022-10-04 12:23 ` [PATCH v3 0/2] RISC-V: Fix buffer overflow after 176-bit instruction support Jan Beulich
2022-10-04 13:20 ` Nelson Chu
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