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LibJS: Allocate 4 KiB for Bytecode::BasicBlock

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There's no reason not to, since we're using mmap() for these anyway
and that gives us memory in 4 KiB increments. :^)
This commit is contained in:
Andreas Kling 2021-06-10 17:39:35 +02:00
parent 22c803d8e5
commit d560ee118d
1 changed files with 1 additions and 1 deletions
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2
Userland/Libraries/LibJS/Bytecode/BasicBlock.cpp
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@ -22,7 +22,7 @@ BasicBlock::BasicBlock(String name)
// FIXME: This is not the smartest solution ever. Find something cleverer! // FIXME: This is not the smartest solution ever. Find something cleverer!
// The main issue we're working around here is that we don't want pointers into the bytecode stream to become invalidated // The main issue we're working around here is that we don't want pointers into the bytecode stream to become invalidated
// during code generation due to dynamic buffer resizing. Otherwise we could just use a Vector. // during code generation due to dynamic buffer resizing. Otherwise we could just use a Vector.
m_buffer_capacity = 1 * KiB; m_buffer_capacity = 4 * KiB;
m_buffer = (u8*)mmap(nullptr, m_buffer_capacity, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, 0, 0); m_buffer = (u8*)mmap(nullptr, m_buffer_capacity, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
VERIFY(m_buffer != MAP_FAILED); VERIFY(m_buffer != MAP_FAILED);
} }