From 09505532b49573663fb4ff4dad424dc2ef4c1f84 Mon Sep 17 00:00:00 2001
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From: Kyle Russell <bkylerussell@gmail.com>
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Date: Wed, 13 Jul 2016 17:30:00 -0400
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Subject: [PATCH] collector: Allocate space on heap for chunks
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Nicer for embedded devices which may have smaller stack limitations.
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Upstream-Status: Submitted [https://github.com/xrmx/bootchart/pull/74]
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Signed-off-by: Kyle Russell <bkylerussell@gmail.com>
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---
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collector/dump.c | 7 ++++---
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1 file changed, 4 insertions(+), 3 deletions(-)
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diff --git a/collector/dump.c b/collector/dump.c
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index e673b5b..2f094b4 100644
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--- a/collector/dump.c
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+++ b/collector/dump.c
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@@ -184,12 +184,12 @@ static void dump_buffers (DumpState *s)
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log ("reading %d chunks (of %d) ...\n", max_chunk, s->map.max_chunk);
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for (i = 0; i < max_chunk; i++) {
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FILE *output;
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- char buffer[CHUNK_SIZE];
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- Chunk *c = (Chunk *)&buffer;
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+ char *buffer = malloc(CHUNK_SIZE);
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+ Chunk *c = (Chunk *)buffer;
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size_t addr = (size_t) s->map.chunks[i];
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lseek (s->mem, addr, SEEK_SET);
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- read (s->mem, &buffer, CHUNK_SIZE);
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+ read (s->mem, buffer, CHUNK_SIZE);
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/* log ("type: '%s' len %d\n",
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c->dest_stream, (int)c->length); */
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@@ -197,6 +197,7 @@ static void dump_buffers (DumpState *s)
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fwrite (c->data, 1, c->length, output);
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bytes_dumped += c->length;
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fclose (output);
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+ free(buffer);
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}
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log ("wrote %ld kb\n", (long)(bytes_dumped+1023)/1024);
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}
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--
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2.7.4
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