tcg-sparc: Don't MAP_FIXED on top of the program
The address we pick in sparc64.ld is also 0x60000000, so doing a fixed map on top of that is guaranteed to blow up. Choosing 0x40000000 is exactly right for the max of code_gen_buffer_size set below. No need to ever use MAP_FIXED. While getting our desired address helps optimize the generated code, we won't fail if we don't get it. Signed-off-by: Richard Henderson <rth@twiddle.net>
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6
exec.c
6
exec.c
@ -543,8 +543,7 @@ static void code_gen_alloc(unsigned long tb_size)
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code_gen_buffer_size = (800 * 1024 * 1024);
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#elif defined(__sparc_v9__)
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// Map the buffer below 2G, so we can use direct calls and branches
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flags |= MAP_FIXED;
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start = (void *) 0x60000000UL;
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start = (void *) 0x40000000UL;
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if (code_gen_buffer_size > (512 * 1024 * 1024))
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code_gen_buffer_size = (512 * 1024 * 1024);
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#elif defined(__arm__)
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@ -584,8 +583,7 @@ static void code_gen_alloc(unsigned long tb_size)
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code_gen_buffer_size = (800 * 1024 * 1024);
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#elif defined(__sparc_v9__)
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// Map the buffer below 2G, so we can use direct calls and branches
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flags |= MAP_FIXED;
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addr = (void *) 0x60000000UL;
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addr = (void *) 0x40000000UL;
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if (code_gen_buffer_size > (512 * 1024 * 1024)) {
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code_gen_buffer_size = (512 * 1024 * 1024);
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}
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