OpenE2K/binutils-gdb
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2009-09-21 Hui Zhu <teawater@gmail.com>

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Michael Snyder  <msnyder@vmware.com>

	* i386-linux-tdep.c (i386_all_but_ip_registers_record): New
	function.
	(i386_linux_intx80_sysenter_record): Call
	i386_all_but_ip_registers_record if syscall is sys_sigreturn
	or sys_rt_sigreturn.
	(I386_LINUX_xstate, I386_LINUX_frame_size): New macros.
	(i386_linux_record_signal): New function.
	(i386_linux_init_abi): Call set_gdbarch_process_record_signal.
This commit is contained in:
Hui Zhu 2009-09-21 05:55:53 +00:00
parent 8b739a963c
commit 8a2e0e28d0
2 changed files with 83 additions and 1 deletions
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12
gdb/ChangeLog
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@ -1,3 +1,15 @@
2009-09-21 Hui Zhu <teawater@gmail.com>
Michael Snyder <msnyder@vmware.com>
* i386-linux-tdep.c (i386_all_but_ip_registers_record): New
function.
(i386_linux_intx80_sysenter_record): Call
i386_all_but_ip_registers_record if syscall is sys_sigreturn
or sys_rt_sigreturn.
(I386_LINUX_xstate, I386_LINUX_frame_size): New macros.
(i386_linux_record_signal): New function.
(i386_linux_init_abi): Call set_gdbarch_process_record_signal.
2009-09-21 Hui Zhu <teawater@gmail.com>
Michael Snyder <msnyder@vmware.com>

72
gdb/i386-linux-tdep.c
View File

@ -358,7 +358,32 @@ i386_linux_write_pc (struct regcache *regcache, CORE_ADDR pc)
regcache_cooked_write_unsigned (regcache, I386_LINUX_ORIG_EAX_REGNUM, -1);
}
static struct linux_record_tdep i386_linux_record_tdep;
/* Record all registers but IP register for process-record. */
static int
i386_all_but_ip_registers_record (struct regcache *regcache)
{
if (record_arch_list_add_reg (regcache, I386_EAX_REGNUM))
return -1;
if (record_arch_list_add_reg (regcache, I386_ECX_REGNUM))
return -1;
if (record_arch_list_add_reg (regcache, I386_EDX_REGNUM))
return -1;
if (record_arch_list_add_reg (regcache, I386_EBX_REGNUM))
return -1;
if (record_arch_list_add_reg (regcache, I386_ESP_REGNUM))
return -1;
if (record_arch_list_add_reg (regcache, I386_EBP_REGNUM))
return -1;
if (record_arch_list_add_reg (regcache, I386_ESI_REGNUM))
return -1;
if (record_arch_list_add_reg (regcache, I386_EDI_REGNUM))
return -1;
if (record_arch_list_add_reg (regcache, I386_EFLAGS_REGNUM))
return -1;
return 0;
}
/* i386_canonicalize_syscall maps from the native i386 Linux set
of syscall ids into a canonical set of syscall ids used by
@ -383,6 +408,8 @@ i386_canonicalize_syscall (int syscall)
Return -1 if something wrong. */
static struct linux_record_tdep i386_linux_record_tdep;
static int
i386_linux_intx80_sysenter_record (struct regcache *regcache)
{
@ -402,6 +429,14 @@ i386_linux_intx80_sysenter_record (struct regcache *regcache)
return -1;
}
if (syscall_gdb == gdb_sys_sigreturn
|| syscall_gdb == gdb_sys_rt_sigreturn)
{
if (i386_all_but_ip_registers_record (regcache))
return -1;
return 0;
}
ret = record_linux_system_call (syscall_gdb, regcache,
&i386_linux_record_tdep);
if (ret)
@ -413,6 +448,40 @@ i386_linux_intx80_sysenter_record (struct regcache *regcache)
return 0;
}
#define I386_LINUX_xstate 270
#define I386_LINUX_frame_size 732
int
i386_linux_record_signal (struct gdbarch *gdbarch,
struct regcache *regcache,
enum target_signal signal)
{
ULONGEST esp;
if (i386_all_but_ip_registers_record (regcache))
return -1;
if (record_arch_list_add_reg (regcache, I386_EIP_REGNUM))
return -1;
/* Record the change in the stack. */
regcache_raw_read_unsigned (regcache, I386_ESP_REGNUM, &esp);
/* This is for xstate.
sp -= sizeof (struct _fpstate); */
esp -= I386_LINUX_xstate;
/* This is for frame_size.
sp -= sizeof (struct rt_sigframe); */
esp -= I386_LINUX_frame_size;
if (record_arch_list_add_mem (esp,
I386_LINUX_xstate + I386_LINUX_frame_size))
return -1;
if (record_arch_list_add_end ())
return -1;
return 0;
}
static LONGEST
@ -529,6 +598,7 @@ i386_linux_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
tdep->sc_num_regs = ARRAY_SIZE (i386_linux_sc_reg_offset);
set_gdbarch_process_record (gdbarch, i386_process_record);
set_gdbarch_process_record_signal (gdbarch, i386_linux_record_signal);
/* Initialize the i386_linux_record_tdep. */
/* These values are the size of the type that will be used in a system