66 lines
2.0 KiB
C
66 lines
2.0 KiB
C
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// Copyright (c) 2025, Zak Fenton
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// Zak Fenton's libc is licensed under the Mulan PSL v2. You can use this
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// software according to the terms and conditions of the Mulan PSL v2.
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// You may obtain a copy of Mulan PSL v2 at:
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// http://license.coscl.org.cn/MulanPSL2
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// THIS SOFTWARE IS PROVIDED ON AN “AS IS” BASIS, WITHOUT warranties of
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// any kind, either express or implied, including but not limited to
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// non-infringement, merchantability or fit for a particular purpose.
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// See the Mulan PSL v2 for more details.
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#include "internal.h"
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#include "simgc.h"
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int main(int argc, char** argv, char** envv); // Note, the third argument is usually not implemented by the main function.
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void _libc_malloc_init(void* stackptr);
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void _libc_env_init(const char** envv);
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void _libc_malloc_finish();
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void _libc_stdio_init();
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void _libc_start(int argc, char** argv, char** envv) {
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_libc_env_init(envv);
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_libc_malloc_init(&argc);
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_libc_stdio_init();
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/*
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for (int i = 0; i < argc; i++) {
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write(1, "ARG: ", 5);
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write(1, argv[i], strlen(argv[i]));
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write(1, "\n", 1);
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}
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for (int i = 0; envv[i]; i++) {
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write(1, "ENV: ", 5);
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write(1, envv[i], strlen(envv[i]));
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write(1, "\n", 1);
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}
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*/
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int result = main(argc, argv, envv);
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_libc_malloc_finish();
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exit(result);
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FATAL("Faulty 'exit' syscall");
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}
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/* This is used to report missing functions or other critical errors, so
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* it shouldn't use any additional library functions it should just
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* print the error and exit using the simplest possible code path.
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*/
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void _libc_fatal(const char* msg, const char* fnc) {
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const char* l1 = "FATAL ERROR:\n";
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const char* l3 = "FUNCTION:\n";
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write(2, l1, strlen(l1));
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write(2, "\t", 1);
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write(2, msg, strlen(msg));
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write(2, "\n", 1);
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write(2, l3, strlen(l3));
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write(2, "\t", 1);
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write(2, fnc, strlen(fnc));
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write(2, "\n", 1);
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// TODO: Trigger debugger here?
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exit(-1);
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l1 = "FAULTY EXIT? HOT LOOP FOREVER";
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write(2, l1, strlen(l1));
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while(1) {
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// Hot loop forever
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}
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}
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