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* [binutils-gdb] gdb/amd64: clean up unused variable
@ 2022-08-03 12:29 Enze Li
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From: Enze Li @ 2022-08-03 12:29 UTC (permalink / raw)
To: gdb-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=8b8da1a9f31941fa167c9f2bd2a80cdd1dccb452
commit 8b8da1a9f31941fa167c9f2bd2a80cdd1dccb452
Author: Enze Li <enze.li@hotmail.com>
Date: Tue Aug 2 06:11:50 2022 +0800
gdb/amd64: clean up unused variable
When building with clang 15, I got this,
CXX amd64-tdep.o
amd64-tdep.c:1410:13: error: variable 'insn' set but not used[-Werror,-Wunused-but-set-variable]
gdb_byte *insn = insn_details->raw_insn + modrm_offset;
^
1 error generated.
The function that uses this variable has been removed in this commit,
commit 870f88f7551b0f2d6aaaa36fb684b5ff8f468107
Date: Mon Apr 18 13:16:27 2016 -0400
remove trivialy unused variables
Fix this by removing unused variable.
Tested by rebuilding on x86_64-linux with clang 15 and gcc 12.
Diff:
---
gdb/amd64-tdep.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/gdb/amd64-tdep.c b/gdb/amd64-tdep.c
index 0563b32a54b..d89e06d27cb 100644
--- a/gdb/amd64-tdep.c
+++ b/gdb/amd64-tdep.c
@@ -1407,15 +1407,11 @@ fixup_riprel (struct gdbarch *gdbarch,
{
const struct amd64_insn *insn_details = &dsc->insn_details;
int modrm_offset = insn_details->modrm_offset;
- gdb_byte *insn = insn_details->raw_insn + modrm_offset;
CORE_ADDR rip_base;
int insn_length;
int arch_tmp_regno, tmp_regno;
ULONGEST orig_value;
- /* %rip+disp32 addressing mode, displacement follows ModRM byte. */
- ++insn;
-
/* Compute the rip-relative address. */
insn_length = gdb_buffered_insn_length (gdbarch, dsc->insn_buf.data (),
dsc->insn_buf.size (), from);
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