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* [gcc r11-8246] libphobos: Add section support code for OpenBSD (PR99691)
@ 2021-04-19 17:28 Iain Buclaw
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From: Iain Buclaw @ 2021-04-19 17:28 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:d86e60855f05a0e493f8362c12bfd40d5432d337
commit r11-8246-gd86e60855f05a0e493f8362c12bfd40d5432d337
Author: Iain Buclaw <ibuclaw@gdcproject.org>
Date: Mon Apr 19 14:23:00 2021 +0200
libphobos: Add section support code for OpenBSD (PR99691)
libphobos/ChangeLog:
PR d/99691
* configure: Regenerate.
* libdruntime/config/common/threadasm.S: Add __OpenBSD__.
* libdruntime/gcc/backtrace.d: Import core.sys.openbsd.dlfcn on
OpenBSD platforms.
* libdruntime/gcc/sections/elf.d (SharedElf): Define on OpenBSD.
(linkMapForHandle): Implement for OpenBSD.
(exeLinkMap): Remove.
(getDependencies): Adjust dlpi_addr on OpenBSD.
(handleForName): Implement for OpenBSD.
(IterateManually): Define on OpenBSD.
* libdruntime/gcc/sections/package.d (SectionsElf): Define on OpenBSD.
* m4/druntime/libraries.m4 (DRUNTIME_LIBRARIES_ATOMIC): Test for
enable_libatomic.
(DRUNTIME_LIBRARIES_BACKTRACE): Test for enable_libbacktrace.
Diff:
---
libphobos/configure | 4 +-
libphobos/libdruntime/config/common/threadasm.S | 2 +-
libphobos/libdruntime/gcc/backtrace.d | 4 +-
libphobos/libdruntime/gcc/sections/elf.d | 54 ++++++++++++++++++-------
libphobos/libdruntime/gcc/sections/package.d | 1 +
libphobos/m4/druntime/libraries.m4 | 4 +-
6 files changed, 48 insertions(+), 21 deletions(-)
diff --git a/libphobos/configure b/libphobos/configure
index fe7cd9c11ff..2c0f57cef03 100755
--- a/libphobos/configure
+++ b/libphobos/configure
@@ -14917,7 +14917,7 @@ fi
DCFG_HAVE_LIBATOMIC=false
LIBATOMIC=
- if test "x$with_libatomic" != "xno"; then :
+ if test "x$enable_libatomic" != "xno" && test "x$with_libatomic" != "xno"; then :
DCFG_HAVE_LIBATOMIC=true
LIBATOMIC=../../libatomic/libatomic_convenience.la
@@ -14953,7 +14953,7 @@ if test "${with_libbacktrace+set}" = set; then :
fi
- if test "x$with_libbacktrace" != "xno"; then :
+ if test "x$enable_libbacktrace" != "xno" && test "x$with_libbacktrace" != "xno"; then :
LIBBACKTRACE=../../libbacktrace/libbacktrace.la
diff --git a/libphobos/libdruntime/config/common/threadasm.S b/libphobos/libdruntime/config/common/threadasm.S
index 1e9bc760527..35462170e58 100644
--- a/libphobos/libdruntime/config/common/threadasm.S
+++ b/libphobos/libdruntime/config/common/threadasm.S
@@ -22,7 +22,7 @@ a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
-#if (__linux__ || __FreeBSD__ || __NetBSD__ || __DragonFly__) && __ELF__
+#if (__linux__ || __FreeBSD__ || __NetBSD__ || __OpenBSD__ || __DragonFly__) && __ELF__
/*
* Mark the resulting object file as not requiring execution permissions on
* stack memory. The absence of this section would mark the whole resulting
diff --git a/libphobos/libdruntime/gcc/backtrace.d b/libphobos/libdruntime/gcc/backtrace.d
index 45dd011dc63..8f5582d7469 100644
--- a/libphobos/libdruntime/gcc/backtrace.d
+++ b/libphobos/libdruntime/gcc/backtrace.d
@@ -424,8 +424,10 @@ private:
import core.sys.freebsd.dlfcn;
else version (NetBSD)
import core.sys.netbsd.dlfcn;
+ else version (OpenBSD)
+ import core.sys.openbsd.dlfcn;
else version (Solaris)
- import core.sys.netbsd.dlfcn;
+ import core.sys.solaris.dlfcn;
else version (Posix)
import core.sys.posix.dlfcn;
diff --git a/libphobos/libdruntime/gcc/sections/elf.d b/libphobos/libdruntime/gcc/sections/elf.d
index 8450aecb239..3480fb9474c 100644
--- a/libphobos/libdruntime/gcc/sections/elf.d
+++ b/libphobos/libdruntime/gcc/sections/elf.d
@@ -33,6 +33,7 @@ version (CRuntime_Glibc) enum SharedELF = true;
else version (CRuntime_Musl) enum SharedELF = true;
else version (FreeBSD) enum SharedELF = true;
else version (NetBSD) enum SharedELF = true;
+else version (OpenBSD) enum SharedELF = true;
else version (DragonFlyBSD) enum SharedELF = true;
else version (CRuntime_UClibc) enum SharedELF = true;
else version (Solaris) enum SharedELF = true;
@@ -62,6 +63,12 @@ else version (NetBSD)
import core.sys.netbsd.sys.elf;
import core.sys.netbsd.sys.link_elf;
}
+else version (OpenBSD)
+{
+ import core.sys.openbsd.dlfcn;
+ import core.sys.openbsd.sys.elf;
+ import core.sys.openbsd.sys.link_elf;
+}
else version (DragonFlyBSD)
{
import core.sys.dragonflybsd.dlfcn;
@@ -688,20 +695,22 @@ version (Shared)
@nogc nothrow:
link_map* linkMapForHandle(void* handle)
{
- link_map* map;
- const success = dlinfo(handle, RTLD_DI_LINKMAP, &map) == 0;
- safeAssert(success, "Failed to get DSO info.");
- return map;
+ static if (__traits(compiles, RTLD_DI_LINKMAP))
+ {
+ link_map* map;
+ const success = dlinfo(handle, RTLD_DI_LINKMAP, &map) == 0;
+ safeAssert(success, "Failed to get DSO info.");
+ return map;
+ }
+ else version (OpenBSD)
+ {
+ safeAssert(handle !is null, "Failed to get DSO info.");
+ return cast(link_map*)handle;
+ }
+ else
+ static assert(0, "unimplemented");
}
- link_map* exeLinkMap(link_map* map)
- {
- safeAssert(map !is null, "Invalid link_map.");
- while (map.l_prev !is null)
- map = map.l_prev;
- return map;
- }
-
DSO* dsoForHandle(void* handle)
{
DSO* pdso;
@@ -766,6 +775,8 @@ version (Shared)
strtab = cast(const(char)*)(info.dlpi_addr + dyn.d_un.d_ptr); // relocate
else version (NetBSD)
strtab = cast(const(char)*)(info.dlpi_addr + dyn.d_un.d_ptr); // relocate
+ else version (OpenBSD)
+ strtab = cast(const(char)*)(info.dlpi_addr + dyn.d_un.d_ptr); // relocate
else version (DragonFlyBSD)
strtab = cast(const(char)*)(info.dlpi_addr + dyn.d_un.d_ptr); // relocate
else version (Solaris)
@@ -795,9 +806,21 @@ version (Shared)
void* handleForName(const char* name)
{
- auto handle = .dlopen(name, RTLD_NOLOAD | RTLD_LAZY);
- version (Solaris) { }
- else if (handle !is null) .dlclose(handle); // drop reference count
+ version (Solaris) enum refCounted = false;
+ else version (OpenBSD) enum refCounted = false;
+ else enum refCounted = true;
+
+ static if (__traits(compiles, RTLD_NOLOAD))
+ enum flags = (RTLD_NOLOAD | RTLD_LAZY);
+ else
+ enum flags = RTLD_LAZY;
+
+ auto handle = .dlopen(name, flags);
+ static if (refCounted)
+ {
+ if (handle !is null)
+ .dlclose(handle); // drop reference count
+ }
return handle;
}
}
@@ -891,6 +914,7 @@ bool findDSOInfoForAddr(in void* addr, dl_phdr_info* result=null) nothrow @nogc
{
version (linux) enum IterateManually = true;
else version (NetBSD) enum IterateManually = true;
+ else version (OpenBSD) enum IterateManually = true;
else version (Solaris) enum IterateManually = true;
else enum IterateManually = false;
diff --git a/libphobos/libdruntime/gcc/sections/package.d b/libphobos/libdruntime/gcc/sections/package.d
index 4c2b542df23..1e887cdcb8f 100644
--- a/libphobos/libdruntime/gcc/sections/package.d
+++ b/libphobos/libdruntime/gcc/sections/package.d
@@ -27,6 +27,7 @@ version (CRuntime_Musl) version = SectionsElf;
version (CRuntime_UClibc) version = SectionsElf;
version (FreeBSD) version = SectionsElf;
version (NetBSD) version = SectionsElf;
+version (OpenBSD) version = SectionsElf;
version (DragonFlyBSD) version = SectionsElf;
version (Solaris) version = SectionsElf;
version (OSX) version = SectionsMacho;
diff --git a/libphobos/m4/druntime/libraries.m4 b/libphobos/m4/druntime/libraries.m4
index 743d3e3e17c..45a56f6f76a 100644
--- a/libphobos/m4/druntime/libraries.m4
+++ b/libphobos/m4/druntime/libraries.m4
@@ -116,7 +116,7 @@ AC_DEFUN([DRUNTIME_LIBRARIES_ATOMIC],
DCFG_HAVE_LIBATOMIC=false
LIBATOMIC=
- AS_IF([test "x$with_libatomic" != "xno"], [
+ AS_IF([test "x$enable_libatomic" != "xno" && test "x$with_libatomic" != "xno"], [
DCFG_HAVE_LIBATOMIC=true
LIBATOMIC=../../libatomic/libatomic_convenience.la
], [
@@ -145,7 +145,7 @@ AC_DEFUN([DRUNTIME_LIBRARIES_BACKTRACE],
AS_HELP_STRING([--without-libbacktrace],
[Do not use libbacktrace in core.runtime (default: auto)]))
- AS_IF([test "x$with_libbacktrace" != "xno"], [
+ AS_IF([test "x$enable_libbacktrace" != "xno" && test "x$with_libbacktrace" != "xno"], [
LIBBACKTRACE=../../libbacktrace/libbacktrace.la
gdc_save_CPPFLAGS=$CPPFLAGS
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