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authorTom Tromey <tom@tromey.com>2024-04-16 13:12:28 -0600
committerTom Tromey <tom@tromey.com>2024-04-21 12:33:56 -0600
commit6e4be957f79b67c117220b39a663c0319dec6b2d (patch)
tree13b60fe4be599e69f1dc2320fe3217af9d66a139
parente6375bc8ebbbc177c79f08e9616eb0b131229f65 (diff)
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Remove a couple of VLAs
I found a couple of spots where VLAs are in use but where they can easily be removed. In one spot, adding 'const' is enough -- and is already done in similar code elsewhere in the file. In another spot, one of two arrays will be used, so making the buffer large enough for both works. Approved-By: John Baldwin <jhb@FreeBSD.org>
-rw-r--r--gdb/aarch64-tdep.c2
-rw-r--r--gdb/arc-linux-tdep.c6
2 files changed, 6 insertions, 2 deletions
diff --git a/gdb/aarch64-tdep.c b/gdb/aarch64-tdep.c
index 545ec87..06eda10 100644
--- a/gdb/aarch64-tdep.c
+++ b/gdb/aarch64-tdep.c
@@ -5713,7 +5713,7 @@ aarch64_process_record (struct gdbarch *gdbarch, struct regcache *regcache,
CORE_ADDR insn_addr)
{
uint32_t rec_no = 0;
- uint8_t insn_size = 4;
+ const uint8_t insn_size = 4;
uint32_t ret = 0;
gdb_byte buf[insn_size];
aarch64_insn_decode_record aarch64_record;
diff --git a/gdb/arc-linux-tdep.c b/gdb/arc-linux-tdep.c
index 54406ac..30bd40c 100644
--- a/gdb/arc-linux-tdep.c
+++ b/gdb/arc-linux-tdep.c
@@ -174,6 +174,9 @@ arc_linux_is_sigtramp (const frame_info_ptr &this_frame)
0x22, 0x6f, 0x00, 0x3f /* swi */
};
+ constexpr size_t max_insn_sz = std::max (sizeof (insns_be_hs),
+ sizeof (insns_be_700));
+
gdb_byte arc_sigtramp_insns[sizeof (insns_be_700)];
size_t insns_sz;
if (arc_mach_is_arcv2 (gdbarch))
@@ -200,7 +203,8 @@ arc_linux_is_sigtramp (const frame_info_ptr &this_frame)
std::swap (arc_sigtramp_insns[i], arc_sigtramp_insns[i+1]);
}
- gdb_byte buf[insns_sz];
+ gdb_assert (insns_sz <= max_insn_sz);
+ gdb_byte buf[max_insn_sz];
/* Read the memory at the PC. Since we are stopped, any breakpoint must
have been removed. */