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ARC: pt_regs update #2: Remove unused gutter at start of pt_regs

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Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
This commit is contained in:
Vineet Gupta 2013-05-28 09:43:17 +05:30
commit 2fa919045b
4 changed files with 15 additions and 26 deletions
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11
arch/arc/include/uapi/asm/ptrace.h
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@ -20,16 +20,19 @@
*
* This is to decouple pt_regs from user-space ABI, to be able to change it
* w/o affecting the ABI.
* Although the layout (initial padding) is similar to pt_regs to have some
* optimizations when copying pt_regs to/from user_regs_struct.
*
* The intermediate pad,pad2 are relics of initial layout based on pt_regs
* for optimizations when copying pt_regs to/from user_regs_struct.
* We no longer need them, but can't be changed as they are part of ABI now.
*
* Also, sigcontext only care about the scratch regs as that is what we really
* save/restore for signal handling.
* save/restore for signal handling. However gdb also uses the same struct
* hence callee regs need to be in there too.
*/
struct user_regs_struct {
long pad;
struct {
long pad;
long bta, lp_start, lp_end, lp_count;
long status32, ret, blink, fp, gp;
long r12, r11, r10, r9, r8, r7, r6, r5, r4, r3, r2, r1, r0;