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authorGuo Ren <guoren@linux.alibaba.com>2023-10-15 11:07:32 -0400
committerAlejandro Colomar <alx@kernel.org>2023-10-15 19:58:07 +0200
commit1c4464ae2c40318b77e125961e24710d1784df5d (patch)
tree38eddcdfd7357d4c8a11c73daa531604ad302301 /man2
parent4be849c5b40433cadb607c847ae088023bda77d3 (diff)
downloadman-pages-1c4464ae2c40318b77e125961e24710d1784df5d.tar.gz
set_thread_area.2: Document C-SKY arch
C-SKY only needs set_thread_area(), no need for get_thread_area(), the same as MIPS. Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Signed-off-by: Guo Ren <guoren@kernel.org> Link: <https://lore.kernel.org/linux-man/014e670b-2a11-3deb-4e7e-bfe9defd8597@gmail.com/T/> Cc: Arnd Bergmann <arnd@arndb.de> [alx: ffix; tweak commit message too] Signed-off-by: Alejandro Colomar <alx@kernel.org>
Diffstat (limited to 'man2')
-rw-r--r--man2/set_thread_area.210
1 files changed, 5 insertions, 5 deletions
diff --git a/man2/set_thread_area.2 b/man2/set_thread_area.2
index 02f65e0418..c4dc5639a0 100644
--- a/man2/set_thread_area.2
+++ b/man2/set_thread_area.2
@@ -26,7 +26,7 @@ Standard C library
.B "int syscall(SYS_get_thread_area);"
.BI "int syscall(SYS_set_thread_area, unsigned long " tp );
.PP
-.B #elif defined __mips__
+.B #elif defined __mips__ || defined __csky__
.PP
.BI "int syscall(SYS_set_thread_area, unsigned long " addr );
.PP
@@ -42,17 +42,17 @@ These calls provide architecture-specific support for a thread-local storage
implementation.
At the moment,
.BR set_thread_area ()
-is available on m68k, MIPS, and x86 (both 32-bit and 64-bit variants);
+is available on m68k, MIPS, C-SKY, and x86 (both 32-bit and 64-bit variants);
.BR get_thread_area ()
is available on m68k and x86.
.PP
-On m68k and MIPS,
+On m68k, MIPS and C-SKY,
.BR set_thread_area ()
allows storing an arbitrary pointer (provided in the
.B tp
argument on m68k and in the
.B addr
-argument on MIPS)
+argument on MIPS and C-SKY)
in the kernel data structure associated with the calling thread;
this pointer can later be retrieved using
.BR get_thread_area ()
@@ -139,7 +139,7 @@ return 0 on success, and \-1 on failure, with
.I errno
set to indicate the error.
.PP
-On MIPS and m68k,
+On C-SKY, MIPS and m68k,
.BR set_thread_area ()
always returns 0.
On m68k,