freebsd-nq/sys/amd64
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
..
acpica MFi386: use the lapic timer for UP systems that are using the apic so that 2005-04-15 18:44:53 +00:00
amd64 Sync i386->amd64. 2005-06-30 05:33:26 +00:00
compile Make space for compilations. 2002-07-06 02:49:07 +00:00
conf Sync i386->amd64. 2005-06-30 05:33:26 +00:00
ia32 Jumbo-commit to enhance 32 bit application support on 64 bit kernels. 2005-06-30 07:49:22 +00:00
include Switch AMD64 and i386 platforms to using ELF as their kernel crash 2005-06-29 22:28:46 +00:00
isa - Move bus dependent defines to {isa,cbus}_dmareg.h. 2005-05-14 10:14:56 +00:00
linux32 Correct the amount of data to allocate in these local copies of 2005-06-24 17:41:28 +00:00
pci MFi386: whitespace, copyright header, etc updates 2005-01-21 05:56:41 +00:00
Makefile