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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-01-28 19:33:01 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-02-14 21:09:12 -0300 |
| commit | 86c5d2cf0ce046279baddc7faa27da71f1a89fde (patch) | |
| tree | 7c5c1317788df62120f457da5829ca5f7bdbde86 /sysdeps/unix/sysv/linux/sparc/sparc32 | |
| parent | e26b8a008ae6f45f6aa2dd56f6d6ce13f181df9f (diff) | |
| download | glibc-86c5d2cf0ce046279baddc7faa27da71f1a89fde.tar.gz glibc-86c5d2cf0ce046279baddc7faa27da71f1a89fde.tar.xz glibc-86c5d2cf0ce046279baddc7faa27da71f1a89fde.zip | |
sparc: Use Linux kABI for syscall return
It changes the sparc internal_syscall* macros to return a negative value instead of the 'g1' register value in the 'err' macro argument. The __SYSCALL_STRING macro is also changed to no set the 'g1' value, since 'o1' already holds all the required information to check if syscall has failed. The macro INTERNAL_SYSCALL_DECL is no longer required, and the INTERNAL_SYSCALL_ERROR_P macro follows the other Linux kABIs. The redefinition of INTERNAL_VSYSCALL_CALL is also no longer required. Checked on sparc64-linux-gnu and sparcv9-linux-gnu. It fixes the sporadic issues on sparc32 where clock_nanosleep does not act as cancellation entrypoint.
Diffstat (limited to 'sysdeps/unix/sysv/linux/sparc/sparc32')
| -rw-r--r-- | sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h b/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h index 8461261674..2c3754770b 100644 --- a/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h @@ -110,9 +110,8 @@ ENTRY(name); \ #define __SYSCALL_STRING \ "ta 0x10;" \ "bcc 1f;" \ - " mov 0, %%g1;" \ + " nop;" \ "sub %%g0, %%o0, %%o0;" \ - "mov 1, %%g1;" \ "1:" #define __SYSCALL_CLOBBERS \ |