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linux-user: Support target-to-host translation of mlockall argument

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The argument to the mlockall system call is not necessarily the same on
all platforms and thus may require translation prior to passing to the
host.

For example, PowerPC 64 bit platforms define values for MCL_CURRENT
(0x2000) and MCL_FUTURE (0x4000) which are different from Intel platforms
(0x1 and 0x2, respectively)

Signed-off-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
This commit is contained in:
Tom Musta 2014-08-12 13:53:42 -05:00 committed by Riku Voipio
parent 8fbe8fdfbc
commit 6f6a40328b
18 changed files with 50 additions and 1 deletions
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2
linux-user/aarch64/syscall.h
View file

@ -9,3 +9,5 @@ struct target_pt_regs {
#define UNAME_MINIMUM_RELEASE "3.8.0"
#define TARGET_CLONE_BACKWARDS
#define TARGET_MINSIGSTKSZ 2048
#define TARGET_MLOCKALL_MCL_CURRENT 1
#define TARGET_MLOCKALL_MCL_FUTURE 2

2
linux-user/alpha/syscall.h
View file

@ -253,3 +253,5 @@ struct target_pt_regs {
#define TARGET_UAC_NOFIX 2
#define TARGET_UAC_SIGBUS 4
#define TARGET_MINSIGSTKSZ 4096
#define TARGET_MLOCKALL_MCL_CURRENT 0x2000
#define TARGET_MLOCKALL_MCL_FUTURE 0x4000

2
linux-user/arm/syscall.h
View file

@ -46,3 +46,5 @@ struct target_pt_regs {
#define TARGET_CLONE_BACKWARDS
#define TARGET_MINSIGSTKSZ 2048
#define TARGET_MLOCKALL_MCL_CURRENT 1
#define TARGET_MLOCKALL_MCL_FUTURE 2

2
linux-user/cris/syscall.h
View file

@ -40,5 +40,7 @@ struct target_pt_regs {
#define TARGET_CLONE_BACKWARDS2
#define TARGET_MINSIGSTKSZ 2048
#define TARGET_MLOCKALL_MCL_CURRENT 1
#define TARGET_MLOCKALL_MCL_FUTURE 2
#endif

2
linux-user/i386/syscall.h
View file

@ -148,3 +148,5 @@ struct target_vm86plus_struct {
#define TARGET_CLONE_BACKWARDS
#define TARGET_MINSIGSTKSZ 2048
#define TARGET_MLOCKALL_MCL_CURRENT 1
#define TARGET_MLOCKALL_MCL_FUTURE 2

2
linux-user/m68k/syscall.h
View file

@ -19,5 +19,7 @@ struct target_pt_regs {
#define UNAME_MINIMUM_RELEASE "2.6.32"
#define TARGET_MINSIGSTKSZ 2048
#define TARGET_MLOCKALL_MCL_CURRENT 1
#define TARGET_MLOCKALL_MCL_FUTURE 2
void do_m68k_simcall(CPUM68KState *, int);

2
linux-user/microblaze/syscall.h
View file

@ -50,5 +50,7 @@ struct target_pt_regs {
#define TARGET_CLONE_BACKWARDS
#define TARGET_MINSIGSTKSZ 2048
#define TARGET_MLOCKALL_MCL_CURRENT 1
#define TARGET_MLOCKALL_MCL_FUTURE 2
#endif

2
linux-user/mips/syscall.h
View file

@ -229,3 +229,5 @@ struct target_pt_regs {
#define TARGET_CLONE_BACKWARDS
#define TARGET_MINSIGSTKSZ 2048
#define TARGET_MLOCKALL_MCL_CURRENT 1
#define TARGET_MLOCKALL_MCL_FUTURE 2

2
linux-user/mips64/syscall.h
View file

@ -226,3 +226,5 @@ struct target_pt_regs {
#define TARGET_CLONE_BACKWARDS
#define TARGET_MINSIGSTKSZ 2048
#define TARGET_MLOCKALL_MCL_CURRENT 1
#define TARGET_MLOCKALL_MCL_FUTURE 2

2
linux-user/openrisc/syscall.h
View file

@ -25,3 +25,5 @@ struct target_pt_regs {
#define UNAME_MINIMUM_RELEASE "2.6.32"
#define TARGET_MINSIGSTKSZ 2048
#define TARGET_MLOCKALL_MCL_CURRENT 1
#define TARGET_MLOCKALL_MCL_FUTURE 2

2
linux-user/ppc/syscall.h
View file

@ -71,3 +71,5 @@ struct target_revectored_struct {
#define TARGET_CLONE_BACKWARDS
#define TARGET_MINSIGSTKSZ 2048
#define TARGET_MLOCKALL_MCL_CURRENT 0x2000
#define TARGET_MLOCKALL_MCL_FUTURE 0x4000

2
linux-user/s390x/syscall.h
View file

@ -25,3 +25,5 @@ struct target_pt_regs {
#define TARGET_CLONE_BACKWARDS2
#define TARGET_MINSIGSTKSZ 2048
#define TARGET_MLOCKALL_MCL_CURRENT 1
#define TARGET_MLOCKALL_MCL_FUTURE 2

2
linux-user/sh4/syscall.h
View file

@ -13,3 +13,5 @@ struct target_pt_regs {
#define UNAME_MINIMUM_RELEASE "2.6.32"
#define TARGET_MINSIGSTKSZ 2048
#define TARGET_MLOCKALL_MCL_CURRENT 1
#define TARGET_MLOCKALL_MCL_FUTURE 2

2
linux-user/sparc/syscall.h
View file

@ -16,3 +16,5 @@ struct target_pt_regs {
*/
#define TARGET_CLONE_BACKWARDS
#define TARGET_MINSIGSTKSZ 4096
#define TARGET_MLOCKALL_MCL_CURRENT 0x2000
#define TARGET_MLOCKALL_MCL_FUTURE 0x4000

2
linux-user/sparc64/syscall.h
View file

@ -17,3 +17,5 @@ struct target_pt_regs {
*/
#define TARGET_CLONE_BACKWARDS
#define TARGET_MINSIGSTKSZ 4096
#define TARGET_MLOCKALL_MCL_CURRENT 0x2000
#define TARGET_MLOCKALL_MCL_FUTURE 0x4000

17
linux-user/syscall.c
View file

@ -4968,6 +4968,21 @@ static inline abi_long target_to_host_sigevent(struct sigevent *host_sevp,
return 0;
}
#if defined(TARGET_NR_mlockall)
static inline int target_to_host_mlockall_arg(int arg)
{
int result = 0;
if (arg & TARGET_MLOCKALL_MCL_CURRENT) {
result |= MCL_CURRENT;
}
if (arg & TARGET_MLOCKALL_MCL_FUTURE) {
result |= MCL_FUTURE;
}
return result;
}
#endif
#if defined(TARGET_NR_stat64) || defined(TARGET_NR_newfstatat)
static inline abi_long host_to_target_stat64(void *cpu_env,
abi_ulong target_addr,
@ -6820,7 +6835,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
#endif
#ifdef TARGET_NR_mlockall
case TARGET_NR_mlockall:
ret = get_errno(mlockall(arg1));
ret = get_errno(mlockall(target_to_host_mlockall_arg(arg1)));
break;
#endif
#ifdef TARGET_NR_munlockall

2
linux-user/unicore32/syscall.h
View file

@ -54,5 +54,7 @@ struct target_pt_regs {
#define UNAME_MINIMUM_RELEASE "2.6.32"
#define TARGET_MINSIGSTKSZ 2048
#define TARGET_MLOCKALL_MCL_CURRENT 1
#define TARGET_MLOCKALL_MCL_FUTURE 2
#endif /* __UC32_SYSCALL_H__ */

2
linux-user/x86_64/syscall.h
View file

@ -98,3 +98,5 @@ struct target_msqid64_ds {
#define TARGET_ARCH_GET_FS 0x1003
#define TARGET_ARCH_GET_GS 0x1004
#define TARGET_MINSIGSTKSZ 2048
#define TARGET_MLOCKALL_MCL_CURRENT 1
#define TARGET_MLOCKALL_MCL_FUTURE 2