diff options
author | Ian Moffett <ian@osmora.org> | 2024-03-07 17:28:00 -0500 |
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committer | Ian Moffett <ian@osmora.org> | 2024-03-07 17:28:32 -0500 |
commit | bd5969fc876a10b18613302db7087ef3c40f18e1 (patch) | |
tree | 7c2b8619afe902abf99570df2873fbdf40a4d1a1 /lib/mlibc/sysdeps/hyra/generic | |
parent | a95b38b1b92b172e6cc4e8e56a88a30cc65907b0 (diff) |
lib: Add mlibc
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'lib/mlibc/sysdeps/hyra/generic')
-rw-r--r-- | lib/mlibc/sysdeps/hyra/generic/entry.cpp | 35 | ||||
-rw-r--r-- | lib/mlibc/sysdeps/hyra/generic/hyra.cpp | 121 |
2 files changed, 156 insertions, 0 deletions
diff --git a/lib/mlibc/sysdeps/hyra/generic/entry.cpp b/lib/mlibc/sysdeps/hyra/generic/entry.cpp new file mode 100644 index 0000000..d5129af --- /dev/null +++ b/lib/mlibc/sysdeps/hyra/generic/entry.cpp @@ -0,0 +1,35 @@ +#include <bits/ensure.h> +#include <mlibc/elf/startup.h> +#include <stdint.h> +#include <stdlib.h> + +// defined by the POSIX library +void __mlibc_initLocale(); + +extern "C" uintptr_t *__dlapi_entrystack(); + +extern char **environ; +static mlibc::exec_stack_data __mlibc_stack_data; + +struct LibraryGuard { + LibraryGuard(); +}; + +static LibraryGuard guard; + +LibraryGuard::LibraryGuard() { + __mlibc_initLocale(); + + // Parse the exec() stack. + mlibc::parse_exec_stack(__dlapi_entrystack(), &__mlibc_stack_data); + mlibc::set_startup_data(__mlibc_stack_data.argc, __mlibc_stack_data.argv, + __mlibc_stack_data.envp); +} + +extern "C" void __mlibc_entry(int (*main_fn)(int argc, char *argv[], + char *env[])) { + // TODO: call __dlapi_enter, otherwise static builds will break (see Linux + // sysdeps) + auto result = main_fn(__mlibc_stack_data.argc, __mlibc_stack_data.argv, environ); + exit(result); +} diff --git a/lib/mlibc/sysdeps/hyra/generic/hyra.cpp b/lib/mlibc/sysdeps/hyra/generic/hyra.cpp new file mode 100644 index 0000000..fb555b9 --- /dev/null +++ b/lib/mlibc/sysdeps/hyra/generic/hyra.cpp @@ -0,0 +1,121 @@ +#include <stddef.h> +#include <sys/types.h> +#include <hyra/syscall.h> + +namespace mlibc { +void sys_libc_log(const char *msg) { + __syscall(0, (uintptr_t)msg); +} + +int sys_anon_allocate(size_t size, void **pointer) { + (void)size; + (void)pointer; + while (1); +} + +void sys_libc_panic() { + sys_libc_log("\n** MLIBC PANIC **\n"); + while (1); +} + +int sys_tcb_set(void *pointer) { + (void)pointer; + + while (1); +} + +void sys_exit(int status) { +} + +void sys_seek(int fd, off_t offset, int whence, off_t *new_offset) { + (void)fd; + (void)offset; + (void)whence; + (void)new_offset; + + while (1); +} + +int sys_vm_map(void *hint, size_t size, int prot, int flags, int fd, + off_t offset, void **window) { + (void)hint; + (void)size; + (void)prot; + (void)flags; + (void)fd; + (void)offset; + (void)window; + + while (1); +} + +int sys_vm_unmap(void *address, size_t size) { + (void)address; + (void)size; + + while (1); +} + +int sys_anon_free(void *pointer, size_t size) { + (void)pointer; + (void)size; + + while (1); +} + +int sys_clock_get(int clock, time_t *secs, long *nanos) { + (void)clock; + (void)secs; + (void)nanos; + + while (1); +} + +int sys_futex_wait(int *pointer, int expected, const struct timespec *time) { + (void)pointer; + (void)expected; + (void)time; + + return 0; +} + +int sys_futex_wake(int *pointer) { + (void)pointer; + + return 0; +} + +int sys_open(const char *filename, int flags, mode_t mode, int *fd) { + (void)filename; + (void)flags; + (void)mode; + (void)fd; + + while (1); +} + +int sys_read(int fd, void *buf, size_t count, ssize_t *bytes_read) { + (void)fd; + (void)buf; + (void)count; + (void)bytes_read; + + while (1); +} + +int sys_write(int fd, const void *buffer, size_t count, ssize_t *written) { + (void)fd; + (void)buffer; + (void)count; + (void)written; + + while (1); +} + +int sys_close(int fd) { + (void)fd; + + while (1); +} + +} |