Move the 32-bit compatible procfs types from freebsd32.h to <sys/procfs.h>

and export them to userland.
- Define __HAVE_REG32 on platforms that define a reg32 structure and check
  for this in <sys/procfs.h> to control when to export prstatus32, etc.
- Add prstatus32_t and prpsinfo32_t typedefs for the 32-bit structures.
  libbfd looks for these types, and having them fixes 'gcore' in gdb of a
  32-bit process on a 64-bit platform.
- Use the structure definitions from <sys/procfs.h> in gcore's elf32 core
  dump code instead of duplicating the definitions.

Differential Revision:	https://reviews.freebsd.org/D2142
Reviewed by:	kib, nathanw (powerpc bits)
MFC after:	1 week

1 files changed, 6 insertions, 0 deletions

diff --git a/sys/sparc64/include/reg.h b/sys/sparc64/include/reg.h
index d224186..8a4dd2a 100644
--- a/sys/sparc64/include/reg.h
+++ b/sys/sparc64/include/reg.h
@@ -98,6 +98,12 @@ struct dbreg {
 	int dummy;
 };
 
+/*
+ * NB: sparcv8 binaries are not supported even though this header
+ * defines the relevant structures.
+ */
+#define	__HAVE_REG32
+
 #ifdef _KERNEL
 /*
  * XXX these interfaces are MI, so they should be declared in a MI place.