Commit c9692657 authored by Manjeet Pawar's avatar Manjeet Pawar Committed by Will Deacon

arm64: Fix MINSIGSTKSZ and SIGSTKSZ

MINSIGSTKSZ and SIGSTKSZ for ARM64 are not correctly set in latest kernel.
This patch fixes this issue.

This issue is reported in LTP (testcase: sigaltstack02.c).
Testcase failed when sigaltstack() called with stack size "MINSIGSTKSZ - 1"
Since in Glibc-2.22, MINSIGSTKSZ is set to 5120 but in kernel
it is set to 2048 so testcase gets failed.

Testcase Output:
sigaltstack02 1  TPASS  :  stgaltstack() fails, Invalid Flag value,errno:22
sigaltstack02 2  TFAIL  :  sigaltstack() returned 0, expected -1,errno:12

Reported Issue in Glibc Bugzilla:
Bugfix in Glibc-2.22: [Bug 16850]
https://sourceware.org/bugzilla/show_bug.cgi?id=16850Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarAkhilesh Kumar <akhilesh.k@samsung.com>
Signed-off-by: default avatarManjeet Pawar <manjeet.p@samsung.com>
Signed-off-by: default avatarRohit Thapliyal <r.thapliyal@samsung.com>
Signed-off-by: default avatarWill Deacon <will.deacon@arm.com>
parent b6dd8e07
...@@ -19,6 +19,9 @@ ...@@ -19,6 +19,9 @@
/* Required for AArch32 compatibility. */ /* Required for AArch32 compatibility. */
#define SA_RESTORER 0x04000000 #define SA_RESTORER 0x04000000
#define MINSIGSTKSZ 5120
#define SIGSTKSZ 16384
#include <asm-generic/signal.h> #include <asm-generic/signal.h>
#endif #endif
...@@ -80,8 +80,10 @@ ...@@ -80,8 +80,10 @@
* SA_RESTORER 0x04000000 * SA_RESTORER 0x04000000
*/ */
#if !defined MINSIGSTKSZ || !defined SIGSTKSZ
#define MINSIGSTKSZ 2048 #define MINSIGSTKSZ 2048
#define SIGSTKSZ 8192 #define SIGSTKSZ 8192
#endif
#ifndef __ASSEMBLY__ #ifndef __ASSEMBLY__
typedef struct { typedef struct {
......
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