Attachment #32130 for bug #65236

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Lines 51-58 Link Here

(-)linux-2.6.5-SLES9_SP1_BRANCH_20050311102304.orig/arch/ia64/kernel/entry.S (-7 / +19 lines)
51	* setup a null register window frame.	51	* setup a null register window frame.
52	*/	52	*/
53	ENTRY(ia64_execve)	53	ENTRY(ia64_execve)
54	.prologue ASM_UNW_PRLG_RP\|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(3)	54	/*
55	alloc loc1=ar.pfs,3,2,4,0	55	* Allocate 8 input registers since ptrace() may clobber them
		56	*/
		57	.prologue ASM_UNW_PRLG_RP\|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8)
		58	alloc loc1=ar.pfs,8,2,4,0
56	mov loc0=rp	59	mov loc0=rp
57	.body	60	.body
58	mov out0=in0 // filename	61	mov out0=in0 // filename
Lines 113-120 END(ia64_execve) Link Here
113	* u64 tls)	116	* u64 tls)
114	*/	117	*/
115	GLOBAL_ENTRY(sys_clone2)	118	GLOBAL_ENTRY(sys_clone2)
116	.prologue ASM_UNW_PRLG_RP\|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(6)	119	/*
117	alloc r16=ar.pfs,6,2,6,0	120	* Allocate 8 input registers since ptrace() may clobber them
		121	*/
		122	.prologue ASM_UNW_PRLG_RP\|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8)
		123	alloc r16=ar.pfs,8,2,6,0
118	DO_SAVE_SWITCH_STACK	124	DO_SAVE_SWITCH_STACK
119	adds r2=PT(R16)+IA64_SWITCH_STACK_SIZE+16,sp	125	adds r2=PT(R16)+IA64_SWITCH_STACK_SIZE+16,sp
120	mov loc0=rp	126	mov loc0=rp
Lines 142-149 END(sys_clone2) Link Here
142	* Deprecated. Use sys_clone2() instead.	148	* Deprecated. Use sys_clone2() instead.
143	*/	149	*/
144	GLOBAL_ENTRY(sys_clone)	150	GLOBAL_ENTRY(sys_clone)
145	.prologue ASM_UNW_PRLG_RP\|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(5)	151	/*
146	alloc r16=ar.pfs,5,2,6,0	152	* Allocate 8 input registers since ptrace() may clobber them
		153	*/
		154	.prologue ASM_UNW_PRLG_RP\|ASM_UNW_PRLG_PFS, ASM_UNW_PRLG_GRSAVE(8)
		155	alloc r16=ar.pfs,8,2,6,0
147	DO_SAVE_SWITCH_STACK	156	DO_SAVE_SWITCH_STACK
148	adds r2=PT(R16)+IA64_SWITCH_STACK_SIZE+16,sp	157	adds r2=PT(R16)+IA64_SWITCH_STACK_SIZE+16,sp
149	mov loc0=rp	158	mov loc0=rp
Lines 1170-1176 END(sys_rt_sigsuspend) Link Here
1170		1179
1171	ENTRY(sys_rt_sigreturn)	1180	ENTRY(sys_rt_sigreturn)
1172	PT_REGS_UNWIND_INFO(0)	1181	PT_REGS_UNWIND_INFO(0)
1173	alloc r2=ar.pfs,0,0,1,0	1182	/*
		1183	* Allocate 8 input registers since ptrace() may clobber them
		1184	*/
		1185	alloc r2=ar.pfs,8,0,1,0
1174	.prologue	1186	.prologue
1175	PT_REGS_SAVES(16)	1187	PT_REGS_SAVES(16)
1176	adds sp=-16,sp	1188	adds sp=-16,sp

Lines 51-56 Link Here

(-)linux-2.6.5-SLES9_SP1_BRANCH_20050311102304.orig/arch/ia64/kernel/ivt.S (-10 / +18 lines)
51	#include <asm/system.h>	51	#include <asm/system.h>
52	#include <asm/thread_info.h>	52	#include <asm/thread_info.h>
53	#include <asm/unistd.h>	53	#include <asm/unistd.h>
		54	#include <asm/errno.h>
54		55
55	#if 1	56	#if 1
56	# define PSR_DEFAULT_BITS psr.ac	57	# define PSR_DEFAULT_BITS psr.ac
Lines 697-706 ENTRY(break_fault) Link Here
697	ssm psr.ic \| PSR_DEFAULT_BITS	698	ssm psr.ic \| PSR_DEFAULT_BITS
698	;;	699	;;
699	srlz.i // guarantee that interruption collection is on	700	srlz.i // guarantee that interruption collection is on
		701	mov r3=NR_syscalls - 1
700	;;	702	;;
701	(p15) ssm psr.i // restore psr.i	703	(p15) ssm psr.i // restore psr.i
		704	// p10==true means out registers are more than 8 or r15's Nat is true
		705	(p10) br.cond.spnt.many ia64_ret_from_syscall
702	;;	706	;;
703	mov r3=NR_syscalls - 1
704	movl r16=sys_call_table	707	movl r16=sys_call_table
705		708
706	adds r15=-1024,r15 // r15 contains the syscall number---subtract 1024	709	adds r15=-1024,r15 // r15 contains the syscall number---subtract 1024
Lines 799-806 END(interrupt) Link Here
799	* On exit:	802	* On exit:
800	* - executing on bank 1 registers	803	* - executing on bank 1 registers
801	* - psr.ic enabled, interrupts restored	804	* - psr.ic enabled, interrupts restored
		805	* - p10: TRUE if syscall is invoked with more than 8 out
		806	* registers or r15's Nat is true
802	* - r1: kernel's gp	807	* - r1: kernel's gp
803	* - r3: preserved (same as on entry)	808	* - r3: preserved (same as on entry)
		809	* - r8: -EINVAL if p10 is true
804	* - r12: points to kernel stack	810	* - r12: points to kernel stack
805	* - r13: points to current task	811	* - r13: points to current task
806	* - p15: TRUE if interrupts need to be re-enabled	812	* - p15: TRUE if interrupts need to be re-enabled
Lines 826-836 GLOBAL_ENTRY(ia64_syscall_setup) Link Here
826	st8 [r17]=r28,PT(AR_UNAT)-PT(CR_IIP) // save cr.iip	832	st8 [r17]=r28,PT(AR_UNAT)-PT(CR_IIP) // save cr.iip
827	mov r28=b0 // save b0 (2 cyc)	833	mov r28=b0 // save b0 (2 cyc)
828	(p8) mov in0=-1	834	(p8) mov in0=-1
829	;;
830		835
831	st8 [r16]=r0,PT(AR_PFS)-PT(CR_IFS) // clear cr.ifs	836	st8 [r16]=r0,PT(AR_PFS)-PT(CR_IFS) // clear cr.ifs
		837	extr.u r11=r19,7,7 // get sol of ar.pfs
		838	and r8=0x7f,r19 // get sof of ar.pfs
		839	;;
832	st8 [r17]=r25,PT(AR_RSC)-PT(AR_UNAT) // save ar.unat	840	st8 [r17]=r25,PT(AR_RSC)-PT(AR_UNAT) // save ar.unat
833	(p9) mov in1=-1	841	(p9) mov in1=-1
		842	add r11=8,r11
834	;;	843	;;
835		844
836	st8 [r16]=r26,PT(AR_RNAT)-PT(AR_PFS) // save ar.pfs	845	st8 [r16]=r26,PT(AR_RNAT)-PT(AR_PFS) // save ar.pfs
Lines 850-865 GLOBAL_ENTRY(ia64_syscall_setup) Link Here
850	tnat.nz p13,p0=in5	859	tnat.nz p13,p0=in5
851	;;	860	;;
852	(pUStk) st8 [r16]=r24,PT(PR)-PT(AR_RNAT) // save ar.rnat	861	(pUStk) st8 [r16]=r24,PT(PR)-PT(AR_RNAT) // save ar.rnat
853	(pUStk) st8 [r17]=r23,PT(B0)-PT(AR_BSPSTORE) // save ar.bspstore	862	cmp.lt p10,p9=r11,r8 // frame size can't be more than local+8
854	shl r18=r18,16 // compute ar.rsc to be used for "loadrs"	863	shl r18=r18,16 // compute ar.rsc to be used for "loadrs"
		864	(pUStk) st8 [r17]=r23,PT(B0)-PT(AR_BSPSTORE) // save ar.bspstore
855	;;	865	;;
		866	(p12) mov in4=-1
		867	(p9) tnat.nz p10,p0=r15
856	st8 [r16]=r31,PT(LOADRS)-PT(PR) // save predicates	868	st8 [r16]=r31,PT(LOADRS)-PT(PR) // save predicates
857	st8 [r17]=r28,PT(R1)-PT(B0) // save b0	869	st8 [r17]=r28,PT(R1)-PT(B0) // save b0
858	(p12) mov in4=-1	870	(p13) mov in5=-1
859	;;	871	;;
860	st8 [r16]=r18,PT(R12)-PT(LOADRS) // save ar.rsc value for "loadrs"	872	st8 [r16]=r18,PT(R12)-PT(LOADRS) // save ar.rsc value for "loadrs"
861	st8.spill [r17]=r20,PT(R13)-PT(R1) // save original r1	873	st8.spill [r17]=r20,PT(R13)-PT(R1) // save original r1
862	(p13) mov in5=-1	874	(p10) mov r8=-EINVAL
863	;;	875	;;
864		876
865	.mem.offset 0,0; st8.spill [r16]=r12,PT(AR_FPSR)-PT(R12) // save r12	877	.mem.offset 0,0; st8.spill [r16]=r12,PT(AR_FPSR)-PT(R12) // save r12
Lines 876-890 GLOBAL_ENTRY(ia64_syscall_setup) Link Here
876		888
877	mov r13=r2 // establish `current'	889	mov r13=r2 // establish `current'
878	movl r1=__gp // establish kernel global pointer	890	movl r1=__gp // establish kernel global pointer
879	;;
880	(p8) mov in7=-1	891	(p8) mov in7=-1
881	tnat.nz p9,p0=r15
882
883	cmp.eq pSys,pNonSys=r0,r0 // set pSys=1, pNonSys=0
884	movl r17=FPSR_DEFAULT	892	movl r17=FPSR_DEFAULT
885	;;	893	;;
886	mov.m ar.fpsr=r17 // set ar.fpsr to kernel default value	894	mov.m ar.fpsr=r17 // set ar.fpsr to kernel default value
887	(p9) mov r15=-1	895	cmp.eq pSys,pNonSys=r0,r0 // set pSys=1, pNonSys=0
888	br.ret.sptk.many b7	896	br.ret.sptk.many b7
889	END(ia64_syscall_setup)	897	END(ia64_syscall_setup)
890		898

Lines 81-86 GLOBAL_ENTRY(__kernel_syscall_via_epc) Link Here

(-)linux-2.6.5-SLES9_SP1_BRANCH_20050311102304.orig/arch/ia64/kernel/gate.S (-1 / +3 lines)
81	LOAD_FSYSCALL_TABLE(r14)	81	LOAD_FSYSCALL_TABLE(r14)
82		82
83	mov r16=IA64_KR(CURRENT) // 12 cycle read latency	83	mov r16=IA64_KR(CURRENT) // 12 cycle read latency
		84	tnat.nz p10,p9=r15
84	mov r19=NR_syscalls-1	85	mov r19=NR_syscalls-1
85	;;	86	;;
86	shladd r18=r17,3,r14	87	shladd r18=r17,3,r14
Lines 119-125 GLOBAL_ENTRY(__kernel_syscall_via_epc) Link Here
119	#endif	120	#endif
120		121
121	mov r10=-1	122	mov r10=-1
122	mov r8=ENOSYS	123	(p10) mov r8=EINVAL
		124	(p9) mov r8=ENOSYS
123	FSYS_RETURN	125	FSYS_RETURN
124	END(__kernel_syscall_via_epc)	126	END(__kernel_syscall_via_epc)
125		127

Lines 614-621 GLOBAL_ENTRY(fsys_bubble_down) Link Here

(-)linux-2.6.5-SLES9_SP1_BRANCH_20050311102304.orig/arch/ia64/kernel/fsys.S (-2 / +3 lines)
614	;;	614	;;
615	mov rp=r2 // set the real return addr	615	mov rp=r2 // set the real return addr
616	tbit.z p8,p0=r3,TIF_SYSCALL_TRACE	616	tbit.z p8,p0=r3,TIF_SYSCALL_TRACE
617		617	;;
618	(p8) br.call.sptk.many b6=b6 // ignore this return addr	618	(p10) br.cond.spnt.many ia64_ret_from_syscall // p10==true means out registers are more than 8
		619	(p8) br.call.sptk.many b6=b6 // ignore this return addr
619	br.cond.sptk ia64_trace_syscall	620	br.cond.sptk ia64_trace_syscall
620	END(fsys_bubble_down)	621	END(fsys_bubble_down)
621		622

Lines 561-567 dump_fpu (struct pt_regs *pt, elf_fpregs Link Here

(-)linux-2.6.5-SLES9_SP1_BRANCH_20050311102304.orig/arch/ia64/kernel/process.c (-1 / +1 lines)
561	return 1; /* f0-f31 are always valid so we always return 1 */	561	return 1; /* f0-f31 are always valid so we always return 1 */
562	}	562	}
563		563
564	asmlinkage long	564	long
565	sys_execve (char filename, char argv, char envp, struct pt_regs regs)	565	sys_execve (char filename, char argv, char envp, struct pt_regs regs)
566	{	566	{
567	int error;	567	int error;

Lines 352-358 asmlinkage unsigned long sys_mmap2( Link Here

(-)linux-2.6.5-SLES9_SP1_BRANCH_20050311102304.orig/include/asm-ia64/unistd.h (-1 / +1 lines)
352	int fd, long pgoff);	352	int fd, long pgoff);
353	struct pt_regs;	353	struct pt_regs;
354	struct sigaction;	354	struct sigaction;
355	asmlinkage long sys_execve(char filename, char argv, char *envp,	355	long sys_execve(char filename, char argv, char *envp,
356	struct pt_regs *regs);	356	struct pt_regs *regs);
357	asmlinkage long sys_pipe(long arg0, long arg1, long arg2, long arg3,	357	asmlinkage long sys_pipe(long arg0, long arg1, long arg2, long arg3,
358	long arg4, long arg5, long arg6, long arg7, long stack);	358	long arg4, long arg5, long arg6, long arg7, long stack);

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