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initial signal implementation

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Matheus
2024-05-14 15:04:48 -03:00
parent 00c212fa8d
commit 7b0cc4c51b
22 changed files with 824 additions and 55 deletions
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patches/mlibc/jinx-working-patch.patch
+55 -16
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@@ -13,10 +13,10 @@ index eb7be7b..eb83b56 100644
#define IPPROTO_HOPOPTS 0
#define IPPROTO_ICMP 1
diff --git mlibc-clean/meson.build mlibc-workdir/meson.build
index 471604e..3c5bea0 100644
index 905fbb9..6360ca5 100644
--- mlibc-clean/meson.build
+++ mlibc-workdir/meson.build
@@ -248,6 +248,12 @@ elif host_machine.system() == 'dripos'
@@ -253,6 +253,12 @@ elif host_machine.system() == 'dripos'
rtld_include_dirs += include_directories('sysdeps/dripos/include')
libc_include_dirs += include_directories('sysdeps/dripos/include')
subdir('sysdeps/dripos')
@@ -175,10 +175,10 @@ 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..6ece9e1
index 0000000..440f0dc
--- /dev/null
+++ mlibc-workdir/sysdeps/astral/generic/generic.cpp
@@ -0,0 +1,652 @@
@@ -0,0 +1,673 @@
+#include <bits/ensure.h>
+#include <mlibc/debug.hpp>
+#include <mlibc/all-sysdeps.hpp>
@@ -310,19 +310,40 @@ index 0000000..6ece9e1
+ return ENOSYS;
+ }
+
+ int sys_sigprocmask(int how, const sigset_t *__restrict set,
+ sigset_t *__restrict retrieve) {
+ //mlibc::infoLogger() << "mlibc: sigprocmask is a stub" << frg::endlog;
+ return 0;
+ int sys_kill(int pid, int signal) {
+ long ret;
+ return syscall(SYSCALL_KILL, &ret, pid, signal);
+ }
+
+ int sys_sigaction(int, const struct sigaction *__restrict,
+ struct sigaction *__restrict) {
+ //mlibc::infoLogger() << "mlibc: sigaction is a stub" << frg::endlog;
+ return 0;
+ int sys_sigprocmask(int how, const sigset_t *__restrict set, sigset_t *__restrict retrieve) {
+ long ret;
+ return syscall(SYSCALL_SIGPROCMASK, &ret, how, (uint64_t)set, (uint64_t)retrieve);
+ }
+
+ int sys_sigaltstack(const stack_t *ss, stack_t *oss) {
+ long ret;
+ return syscall(SYSCALL_SIGALTSTACK, &ret, (uint64_t)ss, (uint64_t)oss);
+ }
+
+ #ifndef MLIBC_BUILDING_RTLD
+ extern "C" void __mlibc_restorer();
+
+ int sys_sigaction(int sig, const struct sigaction *__restrict act,
+ struct sigaction *__restrict oldact) {
+ long ret;
+
+ struct sigaction newact;
+ if (act)
+ newact = *act;
+
+ if (act && (newact.sa_flags & SA_RESTORER) == 0) {
+ newact.sa_restorer = __mlibc_restorer;
+ newact.sa_flags |= SA_RESTORER;
+ }
+
+ return syscall(SYSCALL_SIGACTION, &ret, sig, act ? (uint64_t)&newact : 0, (uint64_t)oldact);
+ }
+
+ int sys_ptsname(int fd, char *buffer, size_t length) {
+ int index;
+ int tmp;
@@ -850,10 +871,10 @@ 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..859c459
index 0000000..14f3c2b
--- /dev/null
+++ mlibc-workdir/sysdeps/astral/include/astral/syscall.h
@@ -0,0 +1,81 @@
@@ -0,0 +1,86 @@
+#ifndef _SYSCALL_H_INCLUDE
+#define _SYSCALL_H_INCLUDE
+
@@ -915,6 +936,11 @@ index 0000000..859c459
+#define SYSCALL_GETSID 55
+#define SYSCALL_SETSID 56
+#define SYSCALL_SETPGID 57
+#define SYSCALL_SIGACTION 58
+#define SYSCALL_SIGALTSTACK 59
+#define SYSCALL_SIGPROCMASK 60
+#define SYSCALL_KILL 61
+#define SYSCALL_SIGRETURN 62
+
+#include <stddef.h>
+#include <stdint.h>
@@ -937,10 +963,10 @@ index 0000000..859c459
+#endif
diff --git mlibc-workdir/sysdeps/astral/meson.build mlibc-workdir/sysdeps/astral/meson.build
new file mode 100644
index 0000000..31d913e
index 0000000..f7c5b72
--- /dev/null
+++ mlibc-workdir/sysdeps/astral/meson.build
@@ -0,0 +1,75 @@
@@ -0,0 +1,76 @@
+
+rtld_sources += files(
+ 'generic/generic.cpp',
@@ -953,6 +979,7 @@ index 0000000..31d913e
+ 'generic/generic.cpp',
+ 'threading/x86_64-thread.cpp',
+ 'threading/x86_64-thread-entry.S',
+ 'signal/x86_64-restorer.S',
+)
+
+if not no_headers
@@ -1016,6 +1043,18 @@ index 0000000..31d913e
+ install_dir: get_option('libdir')
+ )
+endif
diff --git mlibc-workdir/sysdeps/astral/signal/x86_64-restorer.S mlibc-workdir/sysdeps/astral/signal/x86_64-restorer.S
new file mode 100644
index 0000000..dd33a36
--- /dev/null
+++ mlibc-workdir/sysdeps/astral/signal/x86_64-restorer.S
@@ -0,0 +1,6 @@
+.section .text
+.global __mlibc_restorer
+__mlibc_restorer:
+ sub $8, %rsp
+ mov $62, %rax
+ syscall
diff --git mlibc-workdir/sysdeps/astral/threading/x86_64-thread-entry.S mlibc-workdir/sysdeps/astral/threading/x86_64-thread-entry.S
new file mode 100644
index 0000000..4cb3ae0