Haiku: Add Haiku support for CoreCLR/PAL (#93907)

* Haiku: Add Haiku support for CoreCLR/PAL

This contains a part of the code required to build CoreCLR and get
`paltests` to pass on Haiku.

This commit covers `src/coreclr/pal/**`.

Co-authored-by: Jessica Hamilton <[email protected]>

* ilasm: Haiku build fixes

Some OSes like Haiku define the `_EXPORT` and `_IMPORT` marcos.

Symbols beginning with an underscore followed immediately by an
uppercase letter are reserved anyway.

Add the guards to get them out of the way.

* pal: Remove usage of MAP_FILE

This flag is a compatibility flag and not required on most OSes.
Some, including Haiku, does not even define it.

---------

Co-authored-by: Jessica Hamilton <[email protected]>

Author: trungnt2910

src/coreclr/ilasm/ilasmpch.h

@@ -25,4 +25,12 @@
 #include "mdfileformat.h"
 #include "stgpooli.h"
 
+#ifdef _EXPORT
+#undef _EXPORT
+#endif
+
+#ifdef _IMPORT
+#undef _IMPORT
+#endif
+
 #endif

src/coreclr/pal/inc/pal.h

@@ -2644,6 +2644,8 @@ PALIMPORT BOOL PALAPI PAL_GetUnwindInfoSize(SIZE_T baseAddress, ULONG64 ehFrameH
 #define PAL_CS_NATIVE_DATA_SIZE 96
 #elif defined(__linux__) && defined(__riscv) && __riscv_xlen == 64
 #define PAL_CS_NATIVE_DATA_SIZE 96
+#elif defined(__HAIKU__) && defined(__x86_64__)
+#define PAL_CS_NATIVE_DATA_SIZE 56
 #else
 #error  PAL_CS_NATIVE_DATA_SIZE is not defined for this architecture
 #endif
@@ -3952,7 +3954,9 @@ unsigned int __cdecl _rotr(unsigned int value, int shift)
 PALIMPORT DLLEXPORT char * __cdecl PAL_getenv(const char *);
 PALIMPORT DLLEXPORT int __cdecl _putenv(const char *);
 
+#ifndef ERANGE
 #define ERANGE          34
+#endif
 
 /****************PAL Perf functions for PInvoke*********************/
 #if PAL_PERF

src/coreclr/pal/inc/rt/safecrt.h

@@ -112,15 +112,6 @@ typedef int errno_t; /* standard */
 /* error codes */
 #if !defined(_SECURECRT_ERRCODE_VALUES_DEFINED)
 #define _SECURECRT_ERRCODE_VALUES_DEFINED
-#if !defined(EINVAL)
-#define EINVAL          22
-#endif
-#if !defined(ERANGE)
-#define ERANGE          34
-#endif
-#if !defined(EILSEQ)
-#define EILSEQ          42
-#endif
 #if !defined(STRUNCATE)
 #define STRUNCATE       80
 #endif

src/coreclr/pal/src/arch/amd64/signalhandlerhelper.cpp

@@ -8,7 +8,10 @@ SET_DEFAULT_DEBUG_CHANNEL(EXCEPT); // some headers have code with asserts, so do
 #include "pal/context.h"
 #include "pal/signal.hpp"
 #include "pal/utils.h"
+
+#if HAVE_SYS_UCONTEXT_H
 #include <sys/ucontext.h>
+#endif
 
 /*++
 Function :

src/coreclr/pal/src/config.h.in

@@ -21,6 +21,8 @@
 #cmakedefine01 HAVE_PTHREAD_NP_H
 #cmakedefine01 HAVE_AUXV_HWCAP_H
 #cmakedefine01 HAVE_SYS_PTRACE_H
+#cmakedefine01 HAVE_SYS_UCONTEXT_H
+#cmakedefine01 HAVE_SYS_MOUNT_H
 #cmakedefine01 HAVE_UCONTEXT_H
 #cmakedefine01 HAVE_GETAUXVAL
 

src/coreclr/pal/src/configure.cmake

@@ -47,6 +47,8 @@ check_include_files(semaphore.h HAVE_SEMAPHORE_H)
 check_include_files(sys/prctl.h HAVE_PRCTL_H)
 check_include_files("sys/auxv.h;asm/hwcap.h" HAVE_AUXV_HWCAP_H)
 check_include_files("sys/ptrace.h" HAVE_SYS_PTRACE_H)
+check_include_files("sys/ucontext.h" HAVE_SYS_UCONTEXT_H)
+check_include_files("sys/mount.h" HAVE_SYS_MOUNT_H)
 check_include_files(ucontext.h HAVE_UCONTEXT_H)
 check_symbol_exists(getauxval sys/auxv.h HAVE_GETAUXVAL)
 

src/coreclr/pal/src/debug/debug.cpp

@@ -45,7 +45,7 @@ SET_DEFAULT_DEBUG_CHANNEL(DEBUG); // some headers have code with asserts, so do
 #include <unistd.h>
 #elif defined(HAVE_TTRACE) // HAVE_PROCFS_CTL
 #include <sys/ttrace.h>
-#else // defined(HAVE_TTRACE)
+#elif HAVE_SYS_PTRACE_H
 #include <sys/ptrace.h>
 #endif  // HAVE_PROCFS_CTL
 #if HAVE_VM_READ
@@ -635,7 +635,7 @@ PAL_CloseProcessMemory(
   PAL_ReadProcessMemory
 
 Abstract
-  Reads process memory. 
+  Reads process memory.
 
 Parameter
   handle : from PAL_OpenProcessMemory
@@ -753,7 +753,7 @@ PAL_ProbeMemory(
 
     flags = fcntl(fds[0], F_GETFL, 0);
     fcntl(fds[0], F_SETFL, flags | O_NONBLOCK);
-    
+
     flags = fcntl(fds[1], F_GETFL, 0);
     fcntl(fds[1], F_SETFL, flags | O_NONBLOCK);
 

src/coreclr/pal/src/exception/seh.cpp

@@ -305,7 +305,7 @@ PAL_ERROR SEHEnable(CPalThread *pthrCurrent)
 {
 #if HAVE_MACH_EXCEPTIONS
     return pthrCurrent->EnableMachExceptions();
-#elif defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__sun)
+#elif defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__sun) || defined(__HAIKU__)
     return NO_ERROR;
 #else// HAVE_MACH_EXCEPTIONS
 #error not yet implemented
@@ -330,7 +330,7 @@ PAL_ERROR SEHDisable(CPalThread *pthrCurrent)
 {
 #if HAVE_MACH_EXCEPTIONS
     return pthrCurrent->DisableMachExceptions();
-#elif defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__sun)
+#elif defined(__linux__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__sun) || defined(__HAIKU__)
     return NO_ERROR;
 #else // HAVE_MACH_EXCEPTIONS
 #error not yet implemented

src/coreclr/pal/src/exception/signal.cpp

@@ -44,11 +44,13 @@ SET_DEFAULT_DEBUG_CHANNEL(EXCEPT); // some headers have code with asserts, so do
 #include "pal/utils.h"
 
 #include <string.h>
-#include <sys/ucontext.h>
 #include <sys/utsname.h>
 #include <unistd.h>
 #include <sys/mman.h>
 
+#if HAVE_SYS_UCONTEXT_H
+#include <sys/ucontext.h>
+#endif // HAVE_SYS_UCONTEXT_H
 
 #endif // !HAVE_MACH_EXCEPTIONS
 #include "pal/context.h"

src/coreclr/pal/src/file/file.cpp

@@ -32,11 +32,14 @@ SET_DEFAULT_DEBUG_CHANNEL(FILE); // some headers have code with asserts, so do t
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/param.h>
-#include <sys/mount.h>
 #include <errno.h>
 #include <limits.h>
 #include <fcntl.h>
 
+#if HAVE_SYS_MOUNT_H
+#include <sys/mount.h>
+#endif
+
 using namespace CorUnix;
 
 int MaxWCharToAcpLengthFactor = 3;