| 1 | //===-- Implementation of _start for riscv --------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | #include "src/__support/macros/attributes.h" |
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| 9 | #include "startup/linux/do_start.h" |
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| 10 | |
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| 11 | extern "C" [[noreturn]] void _start() { |
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| 12 | asm volatile(".option push\n\t" |
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| 13 | ".option norelax\n\t" |
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| 14 | "lla gp, __global_pointer$\n\t" |
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| 15 | ".option pop\n\t" ); |
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| 16 | // Fetch the args using the frame pointer. |
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| 17 | LIBC_NAMESPACE::app.args = reinterpret_cast<LIBC_NAMESPACE::Args *>( |
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| 18 | reinterpret_cast<uintptr_t *>(__builtin_frame_address(0))); |
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| 19 | LIBC_NAMESPACE::do_start(); |
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| 20 | } |
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| 21 | |
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