freebsd-dev/sys/amd64/ia32
Peter Wemm 62919d788b Jumbo-commit to enhance 32 bit application support on 64 bit kernels.
This is good enough to be able to run a RELENG_4 gdb binary against
a RELENG_4 application, along with various other tools (eg: 4.x gcore).
We use this at work.

ia32_reg.[ch]: handle the 32 bit register file format, used by ptrace,
	procfs and core dumps.
procfs_*regs.c: vary the format of proc/XXX/*regs depending on the client
	and target application.
procfs_map.c: Don't print a 64 bit value to 32 bit consumers, or their
	sscanf fails.  They expect an unsigned long.
imgact_elf.c: produce a valid 32 bit coredump for 32 bit apps.
sys_process.c: handle 32 bit consumers debugging 32 bit targets.  Note
	that 64 bit consumers can still debug 32 bit targets.

IA64 has got stubs for ia32_reg.c.

Known limitations: a 5.x/6.x gdb uses get/setcontext(), which isn't
implemented in the 32/64 wrapper yet.  We also make a tiny patch to
gdb pacify it over conflicting formats of ld-elf.so.1.

Approved by:	re
2005-06-30 07:49:22 +00:00
..
ia32_exception.S Don't repeat the definition of IDTVEC(). It is in asmacros.h. 2004-05-24 11:28:11 +00:00
ia32_reg.c Jumbo-commit to enhance 32 bit application support on 64 bit kernels. 2005-06-30 07:49:22 +00:00
ia32_signal.c Remove advertising clause from University of California Regent's license, 2004-04-05 23:55:14 +00:00
ia32_sigtramp.S Initial sweep at dividing up the generic 32bit-on-64bit kernel support 2003-08-22 23:19:02 +00:00
ia32_syscall.c Use PCPU_LAZY_INC() for cnt.v_{intr,trap,syscalls} rather than atomic 2005-04-12 23:18:54 +00:00