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syscalls: readlinkat

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Matheus
2023-07-06 19:49:35 -03:00
parent 9b945d2bc0
commit c769735068
4 changed files with 76 additions and 7 deletions
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patches/mlibc/jinx-working-patch.patch
+12 -4
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@@ -133,10 +133,10 @@ index 0000000..e5b087a
+
diff --git mlibc-workdir/sysdeps/astral/generic/generic.cpp mlibc-workdir/sysdeps/astral/generic/generic.cpp
new file mode 100644
index 0000000..0b9a48b
index 0000000..90bfad3
--- /dev/null
+++ mlibc-workdir/sysdeps/astral/generic/generic.cpp
@@ -0,0 +1,322 @@
@@ -0,0 +1,329 @@
+#include <bits/ensure.h>
+#include <mlibc/debug.hpp>
+#include <mlibc/all-sysdeps.hpp>
@@ -211,6 +211,13 @@ index 0000000..0b9a48b
+ return 0;
+ }
+
+ int sys_readlink(const char *path, void *buffer, size_t max_size, ssize_t *length) {
+ long ret;
+ long error = syscall(SYSCALL_READLINKAT, &ret, AT_FDCWD, (uint64_t)path, (uint64_t)buffer, max_size);
+ *length = ret;
+ return error;
+ }
+
+ static int dolink(int oldfd, const char *oldpath, int newfd, const char *newpath, int flags, int type) {
+ long ret;
+ return syscall(SYSCALL_LINKAT, &ret, oldfd, (uint64_t)oldpath, newfd, (uint64_t)newpath, flags, type);
@@ -478,10 +485,10 @@ index 0000000..990eca0
+#endif
diff --git mlibc-workdir/sysdeps/astral/include/astral/syscall.h mlibc-workdir/sysdeps/astral/include/astral/syscall.h
new file mode 100644
index 0000000..ee926b6
index 0000000..fa60d43
--- /dev/null
+++ mlibc-workdir/sysdeps/astral/include/astral/syscall.h
@@ -0,0 +1,53 @@
@@ -0,0 +1,54 @@
+#ifndef _SYSCALL_H_INCLUDE
+#define _SYSCALL_H_INCLUDE
+
@@ -515,6 +522,7 @@ index 0000000..ee926b6
+#define SYSCALL_MKDIRAT 27
+#define SYSCALL_CLOCKGET 28
+#define SYSCALL_LINKAT 29
+#define SYSCALL_READLINKAT 30
+
+#include <stddef.h>
+#include <stdint.h>