ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/tools/perf/util/lzma.c b/marvell/linux/tools/perf/util/lzma.c
new file mode 100644
index 0000000..51424cd
--- /dev/null
+++ b/marvell/linux/tools/perf/util/lzma.c
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <errno.h>
+#include <lzma.h>
+#include <stdio.h>
+#include <linux/compiler.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include "compress.h"
+#include "debug.h"
+#include <string.h>
+#include <unistd.h>
+#include <internal/lib.h>
+
+#define BUFSIZE 8192
+
+static const char *lzma_strerror(lzma_ret ret)
+{
+ switch ((int) ret) {
+ case LZMA_MEM_ERROR:
+ return "Memory allocation failed";
+ case LZMA_OPTIONS_ERROR:
+ return "Unsupported decompressor flags";
+ case LZMA_FORMAT_ERROR:
+ return "The input is not in the .xz format";
+ case LZMA_DATA_ERROR:
+ return "Compressed file is corrupt";
+ case LZMA_BUF_ERROR:
+ return "Compressed file is truncated or otherwise corrupt";
+ default:
+ return "Unknown error, possibly a bug";
+ }
+}
+
+int lzma_decompress_to_file(const char *input, int output_fd)
+{
+ lzma_action action = LZMA_RUN;
+ lzma_stream strm = LZMA_STREAM_INIT;
+ lzma_ret ret;
+ int err = -1;
+
+ u8 buf_in[BUFSIZE];
+ u8 buf_out[BUFSIZE];
+ FILE *infile;
+
+ infile = fopen(input, "rb");
+ if (!infile) {
+ pr_err("lzma: fopen failed on %s: '%s'\n",
+ input, strerror(errno));
+ return -1;
+ }
+
+ ret = lzma_stream_decoder(&strm, UINT64_MAX, LZMA_CONCATENATED);
+ if (ret != LZMA_OK) {
+ pr_err("lzma: lzma_stream_decoder failed %s (%d)\n",
+ lzma_strerror(ret), ret);
+ goto err_fclose;
+ }
+
+ strm.next_in = NULL;
+ strm.avail_in = 0;
+ strm.next_out = buf_out;
+ strm.avail_out = sizeof(buf_out);
+
+ while (1) {
+ if (strm.avail_in == 0 && !feof(infile)) {
+ strm.next_in = buf_in;
+ strm.avail_in = fread(buf_in, 1, sizeof(buf_in), infile);
+
+ if (ferror(infile)) {
+ pr_err("lzma: read error: %s\n", strerror(errno));
+ goto err_lzma_end;
+ }
+
+ if (feof(infile))
+ action = LZMA_FINISH;
+ }
+
+ ret = lzma_code(&strm, action);
+
+ if (strm.avail_out == 0 || ret == LZMA_STREAM_END) {
+ ssize_t write_size = sizeof(buf_out) - strm.avail_out;
+
+ if (writen(output_fd, buf_out, write_size) != write_size) {
+ pr_err("lzma: write error: %s\n", strerror(errno));
+ goto err_lzma_end;
+ }
+
+ strm.next_out = buf_out;
+ strm.avail_out = sizeof(buf_out);
+ }
+
+ if (ret != LZMA_OK) {
+ if (ret == LZMA_STREAM_END)
+ break;
+
+ pr_err("lzma: failed %s\n", lzma_strerror(ret));
+ goto err_lzma_end;
+ }
+ }
+
+ err = 0;
+err_lzma_end:
+ lzma_end(&strm);
+err_fclose:
+ fclose(infile);
+ return err;
+}
+
+bool lzma_is_compressed(const char *input)
+{
+ int fd = open(input, O_RDONLY);
+ const uint8_t magic[6] = { 0xFD, '7', 'z', 'X', 'Z', 0x00 };
+ char buf[6] = { 0 };
+ ssize_t rc;
+
+ if (fd < 0)
+ return -1;
+
+ rc = read(fd, buf, sizeof(buf));
+ close(fd);
+ return rc == sizeof(buf) ?
+ memcmp(buf, magic, sizeof(buf)) == 0 : false;
+}