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| author | Manjeet Pawar <manjeet.p@samsung.com> | 2015-10-09 12:29:40 +0200 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2015-10-12 18:40:12 +0200 |
| commit | c9692657c0321fec7bcb3ca8c6db56c08c640ace (patch) | |
| tree | ef1deff127ca3729d6ebd86fe5ee65811924bc8b /arch/arm64 | |
| parent | arm64: errata: use KBUILD_CFLAGS_MODULE for erratum #843419 (diff) | |
| download | linux-c9692657c0321fec7bcb3ca8c6db56c08c640ace.tar.xz linux-c9692657c0321fec7bcb3ca8c6db56c08c640ace.zip | |
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=16850
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Akhilesh Kumar <akhilesh.k@samsung.com>
Signed-off-by: Manjeet Pawar <manjeet.p@samsung.com>
Signed-off-by: Rohit Thapliyal <r.thapliyal@samsung.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/uapi/asm/signal.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm64/include/uapi/asm/signal.h b/arch/arm64/include/uapi/asm/signal.h index 8d1e7236431b..991bf5db2ca1 100644 --- a/arch/arm64/include/uapi/asm/signal.h +++ b/arch/arm64/include/uapi/asm/signal.h @@ -19,6 +19,9 @@ /* Required for AArch32 compatibility. */ #define SA_RESTORER 0x04000000 +#define MINSIGSTKSZ 5120 +#define SIGSTKSZ 16384 + #include <asm-generic/signal.h> #endif |