SecBSD's official ports repository

devel/libsigsegv/Makefile

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+COMMENT =		library for handling page faults in user mode
+
+DISTNAME =		libsigsegv-2.12
+SHARED_LIBS =		sigsegv 1.0
+CATEGORIES =		devel
+
+HOMEPAGE =		https://www.gnu.org/software/libsigsegv/
+
+# GPLv2
+PERMIT_PACKAGE =	Yes
+
+MASTER_SITES =		${MASTER_SITE_GNU:=libsigsegv/}
+
+SEPARATE_BUILD = 	Yes
+
+CONFIGURE_STYLE =	gnu
+# We know these values, so don't run the configure tests for them which may
+# take hours to complete on certain OpenBSD platforms, such as mips64.
+CONFIGURE_ENV +=	sv_cv_fault_linux_i386=no \
+			sv_cv_fault_linux_i386_old=no \
+			sv_cv_fault_linux_m68k=no
+
+.include <bsd.port.mk>

devel/libsigsegv/distinfo

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+SHA256 (libsigsegv-2.12.tar.gz) = OuGvNZ7rqk/8WJahruNWjAUsmYeTFqGrV/j+F4nDkLY=
+SIZE (libsigsegv-2.12.tar.gz) = 451408

devel/libsigsegv/patches/patch-src_fault-openbsd-powerpc_h

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+https://savannah.gnu.org/bugs/?58829
+
+Index: src/fault-openbsd-powerpc.h
+--- src/fault-openbsd-powerpc.h.orig
++++ src/fault-openbsd-powerpc.h
+@@ -17,7 +17,14 @@
+ 
+ #include "fault-openbsd.h"
+ 
+-/* See the definition of 'struct sigcontext' and 'struct trapframe' in
+-   openbsd-src/sys/arch/powerpc/include/signal.h.  */
++/* For 32-bit PowerPC, see the definition of 'struct sigcontext' and
++ * 'struct trapframe' in openbsd-src/sys/arch/powerpc/include/signal.h.
++ * For 64-bit PowerPC only 'struct sigcontext' is defined in
++ * openbsd-src/sys/arch/power64/include/signal.h.
++ */
+ 
++#ifdef __powerpc64__
++#define SIGSEGV_FAULT_STACKPOINTER  scp->sc_sp
++#else
+ #define SIGSEGV_FAULT_STACKPOINTER  scp->sc_frame.fixreg[1]
++#endif

devel/libsigsegv/pkg/DESCR

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+This is a library for handling page faults in user mode. A page fault
+occurs when a program tries to access to a region of memory that is
+currently not available. Catching and handling a page fault is a useful
+technique for implementing:
+
+    * pageable virtual memory,
+    * memory-mapped access to persistent databases,
+    * generational garbage collectors,
+    * stack overflow handlers,
+    * distributed shared memory,

devel/libsigsegv/pkg/PLIST

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+include/sigsegv.h
+lib/libsigsegv.a
+lib/libsigsegv.la
+@lib lib/libsigsegv.so.${LIBsigsegv_VERSION}