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syscalls: pread and pwrite

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Matheus
2024-06-23 20:21:29 -03:00
parent a897a51e2b
commit 9f48a87ae8
5 changed files with 145 additions and 7 deletions
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patches/mlibc/jinx-working-patch.patch
+24 -4
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@@ -207,10 +207,10 @@ 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..29795a8
index 0000000..a20c9cd
--- /dev/null
+++ mlibc-workdir/sysdeps/astral/generic/generic.cpp
@@ -0,0 +1,934 @@
@@ -0,0 +1,952 @@
+#include <bits/ensure.h>
+#include <mlibc/debug.hpp>
+#include <mlibc/all-sysdeps.hpp>
@@ -330,6 +330,24 @@ index 0000000..29795a8
+ return 0;
+ }
+
+ int sys_rmdir(const char *path) {
+ return sys_unlinkat(AT_FDCWD, path, AT_REMOVEDIR);
+ }
+
+ int sys_pread(int fd, void *buf, size_t n, off_t off, ssize_t *bytes_read) {
+ long readc;
+ long error = syscall(SYSCALL_PREAD, &readc, fd, (uint64_t)buf, n, off);
+ *bytes_read = readc;
+ return error;
+ }
+
+ int sys_pwrite(int fd, const void *buf, size_t n, off_t off, ssize_t *bytes_written) {
+ long writec;
+ long error = syscall(SYSCALL_PWRITE, &writec, fd, (uint64_t)buf, n, off);
+ *bytes_written = writec;
+ return error;
+ }
+
+ #ifndef MLIBC_BUILDING_RTLD
+
+ typedef struct {
@@ -1164,10 +1182,10 @@ 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..6b2e7da
index 0000000..144207f
--- /dev/null
+++ mlibc-workdir/sysdeps/astral/include/astral/syscall.h
@@ -0,0 +1,99 @@
@@ -0,0 +1,101 @@
+#ifndef _SYSCALL_H_INCLUDE
+#define _SYSCALL_H_INCLUDE
+
@@ -1247,6 +1265,8 @@ index 0000000..6b2e7da
+#define SYSCALL_CHROOT 73
+#define SYSCALL_PAUSE 74
+#define SYSCALL_PPOLL 75
+#define SYSCALL_PREAD 76
+#define SYSCALL_PWRITE 77
+
+#include <stddef.h>
+#include <stdint.h>