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target/s390x/arch_dump: Simplify memory allocation in s390x_write_elf64_notes() 

We are not on a hot path here, so there is no real need for the logic
here with the split heap and stack space allocation. Simplify it by
always allocating memory from the heap.

Suggested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20230215085703.746788-1-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
This commit is contained in:
Thomas Huth 2023-02-15 09:57:03 +01:00
parent eb60026120
commit 4376a770c7
1 changed files with 7 additions and 13 deletions
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20
target/s390x/arch_dump.c
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@ -227,25 +227,25 @@ static int s390x_write_elf64_notes(const char *note_name,
DumpState *s,
const NoteFuncDesc *funcs)
{
Note note, *notep;
g_autofree Note *notep = NULL;
const NoteFuncDesc *nf;
int note_size, content_size;
int note_size, prev_size = 0, content_size;
int ret = -1;
assert(strlen(note_name) < sizeof(note.name));
assert(strlen(note_name) < sizeof(notep->name));
for (nf = funcs; nf->note_contents_func; nf++) {
notep = &note;
if (nf->pvonly && !s390_is_pv()) {
continue;
}
content_size = nf->note_size_func ? nf->note_size_func() : nf->contents_size;
note_size = sizeof(note) - sizeof(notep->contents) + content_size;
note_size = sizeof(Note) - sizeof(notep->contents) + content_size;
/* Notes with dynamic sizes need to allocate a note */
if (nf->note_size_func) {
if (prev_size < note_size) {
g_free(notep);
notep = g_malloc(note_size);
prev_size = note_size;
}
memset(notep, 0, note_size);
@ -258,15 +258,9 @@ static int s390x_write_elf64_notes(const char *note_name,
/* Get contents and write them out */
(*nf->note_contents_func)(notep, cpu, id);
ret = f(notep, note_size, s);
if (nf->note_size_func) {
g_free(notep);
}
if (ret < 0) {
return -1;
}
}
return 0;