OpenE2K/binutils-gdb
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* arm-linux-tdep.c (eabi_linux_arm_le_breakpoint)

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(eabi_linux_arm_be_breakpoint): New variables.
	(arm_linux_init_abi): Use them.
This commit is contained in:
Daniel Jacobowitz 2005-11-13 18:04:14 +00:00
parent 9d1fb17785
commit c75a2cc832
2 changed files with 27 additions and 2 deletions
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6
gdb/ChangeLog
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@ -1,3 +1,9 @@
2005-11-13 Daniel Jacobowitz <dan@codesourcery.com>
* arm-linux-tdep.c (eabi_linux_arm_le_breakpoint)
(eabi_linux_arm_be_breakpoint): New variables.
(arm_linux_init_abi): Use them.
2005-11-11 Michael Snyder <msnyder@redhat.com>
* inftarg.c (child_wait): Delete unused local variable.

23
gdb/arm-linux-tdep.c
View File

@ -45,6 +45,19 @@ static const char arm_linux_arm_le_breakpoint[] = { 0x01, 0x00, 0x9f, 0xef };
static const char arm_linux_arm_be_breakpoint[] = { 0xef, 0x9f, 0x00, 0x01 };
/* However, the EABI syscall interface (new in Nov. 2005) does not look at
the operand of the swi if old-ABI compatibility is disabled. Therefore,
use an undefined instruction instead. This is supported as of kernel
version 2.5.70 (May 2003), so should be a safe assumption for EABI
binaries. */
static const char eabi_linux_arm_le_breakpoint[] = { 0xf0, 0x01, 0xf0, 0xe7 };
static const char eabi_linux_arm_be_breakpoint[] = { 0xe7, 0xf0, 0x01, 0xf0 };
/* All the kernels which support Thumb support using a specific undefined
instruction for the Thumb breakpoint. */
static const char arm_linux_thumb_be_breakpoint[] = {0xde, 0x01};
static const char arm_linux_thumb_le_breakpoint[] = {0x01, 0xde};
@ -329,12 +342,18 @@ arm_linux_init_abi (struct gdbarch_info info,
tdep->lowest_pc = 0x8000;
if (info.byte_order == BFD_ENDIAN_BIG)
{
tdep->arm_breakpoint = arm_linux_arm_be_breakpoint;
if (tdep->arm_abi == ARM_ABI_AAPCS)
tdep->arm_breakpoint = eabi_linux_arm_be_breakpoint;
else
tdep->arm_breakpoint = arm_linux_arm_be_breakpoint;
tdep->thumb_breakpoint = arm_linux_thumb_be_breakpoint;
}
else
{
tdep->arm_breakpoint = arm_linux_arm_le_breakpoint;
if (tdep->arm_abi == ARM_ABI_AAPCS)
tdep->arm_breakpoint = eabi_linux_arm_le_breakpoint;
else
tdep->arm_breakpoint = arm_linux_arm_le_breakpoint;
tdep->thumb_breakpoint = arm_linux_thumb_le_breakpoint;
}
tdep->arm_breakpoint_size = sizeof (arm_linux_arm_le_breakpoint);