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40 lines
1.1 KiB
Diff
40 lines
1.1 KiB
Diff
diff --git a/thirdparty/libbacktrace/read.c b/thirdparty/libbacktrace/read.c
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index 7af66602fd..a7e937667c 100644
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--- a/thirdparty/libbacktrace/read.c
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+++ b/thirdparty/libbacktrace/read.c
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@@ -52,14 +52,7 @@ backtrace_get_view (struct backtrace_state *state, int descriptor,
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{
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uint64_t got;
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ssize_t r;
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-
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- if ((uint64_t) (size_t) size != size)
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- {
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- error_callback (data, "file size too large", 0);
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- return 0;
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- }
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-
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- if (lseek (descriptor, offset, SEEK_SET) < 0)
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+ if (_lseeki64 (descriptor, offset, SEEK_SET) < 0)
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{
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error_callback (data, "lseek", errno);
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return 0;
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@@ -74,7 +67,10 @@ backtrace_get_view (struct backtrace_state *state, int descriptor,
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got = 0;
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while (got < size)
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{
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- r = read (descriptor, view->base, size - got);
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+ uint64_t sz = size - got;
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+ if (sz > INT_MAX)
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+ sz = INT_MAX;
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+ r = _read (descriptor, view->base, sz);
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if (r < 0)
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{
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error_callback (data, "read", errno);
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@@ -84,6 +80,7 @@ backtrace_get_view (struct backtrace_state *state, int descriptor,
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if (r == 0)
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break;
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got += (uint64_t) r;
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+ view->base += r;
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}
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if (got < size)
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