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| author |   Gerald Schaefer <gerald.schaefer@de.ibm.com> | 2019-02-03 21:36:13 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2019-04-29 10:47:10 +0200 |
| commit | ff4a742dde3c4b80a91cdd754fed3bc576df28c9 (patch) | |
| tree | f44a18f2d81167dbb3edbcbbcbb8e9aefd1e6603 /arch/s390/kernel/entry.S | |
| parent | s390/kernel: build a relocatable kernel (diff) | |
| download | linux-dev-ff4a742dde3c4b80a91cdd754fed3bc576df28c9.tar.xz linux-dev-ff4a742dde3c4b80a91cdd754fed3bc576df28c9.zip | |
s390/kernel: convert SYSCALL and PGM_CHECK handlers to .quad
With a relocatable kernel that could reside at any place in memory, the
storage size for the SYSCALL and PGM_CHECK handlers needs to be
increased from .long to .quad.
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Reviewed-by: Philipp Rudo <prudo@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel/entry.S')
| -rw-r--r-- | arch/s390/kernel/entry.S | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index 583d65ef5007..baa67e434b46 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -358,19 +358,19 @@ ENTRY(system_call) # load address of system call table lg %r10,__THREAD_sysc_table(%r13,%r12) llgh %r8,__PT_INT_CODE+2(%r11) - slag %r8,%r8,2 # shift and test for svc 0 + slag %r8,%r8,3 # shift and test for svc 0 jnz .Lsysc_nr_ok # svc 0: system call number in %r1 llgfr %r1,%r1 # clear high word in r1 cghi %r1,NR_syscalls jnl .Lsysc_nr_ok sth %r1,__PT_INT_CODE+2(%r11) - slag %r8,%r1,2 + slag %r8,%r1,3 .Lsysc_nr_ok: xc __SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15) stg %r2,__PT_ORIG_GPR2(%r11) stg %r7,STACK_FRAME_OVERHEAD(%r15) - lgf %r9,0(%r8,%r10) # get system call add. + lg %r9,0(%r8,%r10) # get system call add. TSTMSK __TI_flags(%r12),_TIF_TRACE jnz .Lsysc_tracesys BASR_EX %r14,%r9 # call sys_xxxx @@ -556,8 +556,8 @@ ENTRY(system_call) lghi %r0,NR_syscalls clgr %r0,%r2 jnh .Lsysc_tracenogo - sllg %r8,%r2,2 - lgf %r9,0(%r8,%r10) + sllg %r8,%r2,3 + lg %r9,0(%r8,%r10) .Lsysc_tracego: lmg %r3,%r7,__PT_R3(%r11) stg %r7,STACK_FRAME_OVERHEAD(%r15) @@ -665,9 +665,9 @@ ENTRY(pgm_check_handler) larl %r1,pgm_check_table llgh %r10,__PT_INT_CODE+2(%r11) nill %r10,0x007f - sll %r10,2 + sll %r10,3 je .Lpgm_return - lgf %r9,0(%r10,%r1) # load address of handler routine + lg %r9,0(%r10,%r1) # load address of handler routine lgr %r2,%r11 # pass pointer to pt_regs BASR_EX %r14,%r9 # branch to interrupt-handler .Lpgm_return: @@ -1512,7 +1512,7 @@ cleanup_critical: .quad .Lsie_skip - .Lsie_entry #endif .section .rodata, "a" -#define SYSCALL(esame,emu) .long __s390x_ ## esame +#define SYSCALL(esame,emu) .quad __s390x_ ## esame .globl sys_call_table sys_call_table: #include "asm/syscall_table.h" @@ -1520,7 +1520,7 @@ sys_call_table: #ifdef CONFIG_COMPAT -#define SYSCALL(esame,emu) .long __s390_ ## emu +#define SYSCALL(esame,emu) .quad __s390_ ## emu .globl sys_call_table_emu sys_call_table_emu: #include "asm/syscall_table.h" |