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mlibc: stub some sysdeps and __freadptr

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Matheus
2026-05-28 14:16:31 -03:00
parent e2506c0bab
commit b7cdec1360
2 changed files with 125 additions and 14 deletions
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patches/mlibc/jinx-working-patch.patch
+124 -13
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@@ -81,6 +81,60 @@ index 1ed110d..ded9114 100644
- }
+void backtrace_symbols_fd(void *const *, int, int) {
}
diff --git mlibc-clean/options/glibc/generic/stdio_ext.cpp mlibc-workdir/options/glibc/generic/stdio_ext.cpp
index ccb3725..3dfa27a 100644
--- mlibc-clean/options/glibc/generic/stdio_ext.cpp
+++ mlibc-workdir/options/glibc/generic/stdio_ext.cpp
@@ -71,14 +71,38 @@ size_t __freadahead(FILE *file_base) {
return file_base->__valid_limit - file_base->__offset;
}
-const char *__freadptr(FILE *, size_t *) {
- __ensure(!"Not implemented");
- __builtin_unreachable();
+const char *__freadptr(FILE *file_base, size_t *size) {
+ if(file_base->__io_mode != 0) {
+ mlibc::infoLogger() << "mlibc: __freadptr() called but file is not open for reading" << frg::endlog;
+ *size = 0;
+ return nullptr;
+ }
+
+ if(file_base->__unget_ptr != file_base->__buffer_ptr) {
+ *size = file_base->__buffer_ptr - file_base->__unget_ptr;
+ return file_base->__unget_ptr;
+ }
+
+ if(file_base->__offset == file_base->__valid_limit) {
+ *size = 0;
+ return nullptr;
+ }
+
+ *size = file_base->__valid_limit - file_base->__offset;
+ return file_base->__buffer_ptr + file_base->__offset;
}
-void __freadptrinc(FILE *, size_t) {
- __ensure(!"Not implemented");
- __builtin_unreachable();
+void __freadptrinc(FILE *file_base, size_t increment) {
+ size_t unget_size = file_base->__buffer_ptr ? file_base->__buffer_ptr - file_base->__unget_ptr : 0;
+ if(increment <= unget_size) {
+ file_base->__unget_ptr += increment;
+ return;
+ }
+
+ increment -= unget_size;
+ file_base->__unget_ptr = file_base->__buffer_ptr;
+ __ensure(file_base->__offset + increment <= file_base->__valid_limit);
+ file_base->__offset += increment;
}
void __fseterr(FILE *file_base) {
@@ -87,4 +111,3 @@ void __fseterr(FILE *file_base) {
// set the error indicator for the stream
file->__status_bits |= __MLIBC_ERROR_BIT;
}
-
diff --git mlibc-clean/options/internal/generic/global-config.cpp mlibc-workdir/options/internal/generic/global-config.cpp
index 3b7b862..3d86e7a 100644
--- mlibc-clean/options/internal/generic/global-config.cpp
@@ -334,7 +388,7 @@ index ba9a520..b958ef3 100644
.section .note.GNU-stack,"",%progbits
-
diff --git mlibc-clean/sysdeps/astral/generic/generic.cpp mlibc-workdir/sysdeps/astral/generic/generic.cpp
index 3b04372..d987ac3 100644
index 3b04372..028fa48 100644
--- mlibc-clean/sysdeps/astral/generic/generic.cpp
+++ mlibc-workdir/sysdeps/astral/generic/generic.cpp
@@ -1,7 +1,9 @@
@@ -347,12 +401,14 @@ index 3b04372..d987ac3 100644
#include <astral/syscall.h>
#include <astral/archctl.h>
#include <string.h>
@@ -11,8 +13,29 @@
@@ -11,8 +13,31 @@
#include <sys/select.h>
#include <stdio.h>
#include <sys/stat.h>
+#include <sys/statfs.h>
+#include <sys/statvfs.h>
+#include <sys/sysinfo.h>
+#include <sys/times.h>
#include <unistd.h>
#include <dirent.h>
+#include <sys/sysmacros.h>
@@ -377,12 +433,43 @@ index 3b04372..d987ac3 100644
namespace mlibc {
int Sysdeps<SetGroups>::operator()(size_t size, const gid_t *list) {
@@ -31,14 +54,276 @@ namespace mlibc {
@@ -31,14 +56,307 @@ namespace mlibc {
return 0;
}
- int Sysdeps<GetSockopt>::operator()(int fd, int layer, int number,
- void *__restrict buffer, socklen_t *__restrict size) {
+ int Sysdeps<GetLoadavg>::operator()(double *samples) {
+ struct sysinfo si;
+ if(int e = sysdep<Sysinfo>(&si); e)
+ return e;
+
+ for(int i = 0; i < 3; i++)
+ samples[i] = (double)si.loads[i] / (1 << SI_LOAD_SHIFT);
+
+ return 0;
+ }
+
+ int Sysdeps<Times>::operator()(struct tms *tms, clock_t *out) {
+ if(tms) {
+ tms->tms_utime = 0;
+ tms->tms_stime = 0;
+ tms->tms_cutime = 0;
+ tms->tms_cstime = 0;
+ }
+
+ *out = 0;
+ return 0;
+ }
+
+ int Sysdeps<Fadvise>::operator()(int fd, off_t offset, off_t length, int advice) {
+ (void)fd;
+ (void)offset;
+ (void)length;
+ (void)advice;
+ return 0;
+ }
+
+ int Sysdeps<Setxattr>::operator()(const char *path, const char *name,
+ const void *val, size_t size, int flags) {
+ (void)path;
@@ -659,7 +746,7 @@ index 3b04372..d987ac3 100644
int Sysdeps<InetConfigured>::operator()(bool *ipv4, bool *ipv6) {
// there is no ipv6 support in the kernel currently and no way of checking for configured interfaces
@@ -47,6 +332,71 @@ namespace mlibc {
@@ -47,6 +365,71 @@ namespace mlibc {
return 0;
}
@@ -731,7 +818,20 @@ index 3b04372..d987ac3 100644
int Sysdeps<Readv>::operator()(int fd, const struct iovec *iovs, int iovc, ssize_t *bytes_read) {
long r;
int error = syscall(SYSCALL_READV, &r, fd, (uint64_t)iovs, iovc);
@@ -489,6 +839,7 @@ namespace mlibc {
@@ -444,6 +827,12 @@ namespace mlibc {
return ret;
}
+ int Sysdeps<ThreadSetname>::operator()(void *tcb, const char *name) {
+ (void)tcb;
+ (void)name;
+ return 0;
+ }
+
#ifndef MLIBC_BUILDING_RTLD
[[noreturn]] void Sysdeps<ThreadExit>::operator()() {
@@ -489,6 +878,7 @@ namespace mlibc {
int Sysdeps<SetSockopt>::operator()(int fd, int layer, int number, const void *buffer, socklen_t size) {
long ret;
@@ -739,7 +839,7 @@ index 3b04372..d987ac3 100644
return syscall(SYSCALL_SETSOCKOPT, &ret, fd, layer, number, (uint64_t)buffer, size);
}
@@ -511,6 +862,11 @@ namespace mlibc {
@@ -511,6 +901,11 @@ namespace mlibc {
return err;
}
@@ -751,7 +851,7 @@ index 3b04372..d987ac3 100644
int Sysdeps<Renameat>::operator()(int olddirfd, const char *old_path, int newdirfd, const char *new_path) {
long ret;
return syscall(SYSCALL_RENAMEAT, &ret, olddirfd, (uint64_t)old_path, newdirfd, (uint64_t)new_path);
@@ -562,6 +918,16 @@ namespace mlibc {
@@ -562,6 +957,16 @@ namespace mlibc {
return sysdep<Ioctl>(fd, TCSETS, (void *)attr, &res);
}
@@ -768,7 +868,7 @@ index 3b04372..d987ac3 100644
int Sysdeps<Poll>::operator()(struct pollfd *fds, nfds_t count, int timeout, int *num_events) {
long ret;
long error = syscall(SYSCALL_POLL, &ret, (uint64_t)fds, count, timeout);
@@ -932,4 +1298,13 @@ namespace mlibc {
@@ -932,4 +1337,13 @@ namespace mlibc {
*nanos = ts.tv_nsec;
return err;
}
@@ -821,13 +921,16 @@ index a6c4067..f1e0b65 100644
#ifndef __MLIBC_ABI_ONLY
diff --git mlibc-clean/sysdeps/astral/include/mlibc/sysdeps.hpp mlibc-workdir/sysdeps/astral/include/mlibc/sysdeps.hpp
index ce91084..fddb9d0 100644
index ce91084..5e96961 100644
--- mlibc-clean/sysdeps/astral/include/mlibc/sysdeps.hpp
+++ mlibc-workdir/sysdeps/astral/include/mlibc/sysdeps.hpp
@@ -7,8 +7,27 @@ namespace mlibc {
@@ -7,8 +7,30 @@ namespace mlibc {
struct AstralSysdepTags :
SetGroups,
GetGroups,
+ GetLoadavg,
+ Times,
+ Fadvise,
+ Setxattr,
+ Lsetxattr,
+ Fsetxattr,
@@ -852,7 +955,15 @@ index ce91084..fddb9d0 100644
Readv,
Writev,
Sysinfo,
@@ -77,6 +96,7 @@ struct AstralSysdepTags :
@@ -66,6 +88,7 @@ struct AstralSysdepTags :
SetSid,
FutexTid,
GetTid,
+ ThreadSetname,
ThreadExit,
Clone,
Listen,
@@ -77,6 +100,7 @@ struct AstralSysdepTags :
Bind,
Socket,
Renameat,
@@ -860,7 +971,7 @@ index ce91084..fddb9d0 100644
Rename,
Utimensat,
Fchownat,
@@ -85,6 +105,8 @@ struct AstralSysdepTags :
@@ -85,6 +109,8 @@ struct AstralSysdepTags :
Sleep,
Tcgetattr,
Tcsetattr,
@@ -869,7 +980,7 @@ index ce91084..fddb9d0 100644
Poll,
Ppoll,
Pselect,
@@ -135,6 +157,7 @@ struct AstralSysdepTags :
@@ -135,6 +161,7 @@ struct AstralSysdepTags :
VmUnmap,
Isatty,
ClockGet,