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plugins: Copy memory in qemu_plugin_insn_data

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Instead of returning a host pointer, copy the data into
storage provided by the caller.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2024-04-02 21:24:52 -10:00
parent bf4bb074b7
commit 4abc892362
4 changed files with 17 additions and 14 deletions
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4
contrib/plugins/howvec.c
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@ -252,7 +252,7 @@ static struct qemu_plugin_scoreboard *find_counter(
{
int i;
uint64_t *cnt = NULL;
uint32_t opcode;
uint32_t opcode = 0;
InsnClassExecCount *class = NULL;
/*
@ -261,7 +261,7 @@ static struct qemu_plugin_scoreboard *find_counter(
* They would probably benefit from a more tailored plugin.
* However we can fall back to individual instruction counting.
*/
opcode = *((uint32_t *)qemu_plugin_insn_data(insn));
qemu_plugin_insn_data(insn, &opcode, sizeof(opcode));
for (i = 0; !cnt && i < class_table_sz; i++) {
class = &class_table[i];