diff mbox series

[v3,04/19] RISC-V: Add support for 32-bit vDSO calls

Message ID	50619acf4344de8022a28f34cd04c36eff6873ae.1594568655.git.alistair.francis@wdc.com
State	Committed
Headers	DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org B6804385701F IronPort-SDR: bGfgJo/zq3PuSX/bFRrzXmRCWpy8MrYUJPSFKxRKqiZrYAsyFgstItClehUMgH1EqzjLQGbhJi QRt16vIfe2B8YtxD/kDboKjz3usVCoILRYozzOhRKFkM1AezKy3wF5ZWaCKUXzWlXML8A0Yv/f mBhxbkXIMt7s4rg5K9geHXhtbXvd5FRU6LsAZlPluzxbuH0IUESPHu9saKkn3NCzgwUDeMzyx/ BaUB/YJ0RWH+gspE7s+otNZn0otdekYbqhs3SKQG97BpcfNrEhQwj0MDqAHEEEFigu43yVHUkv Ae0= IronPort-SDR: EBvKly6h6WrLvLVpLsVMnIb44bIOKUH50oC+L+xH9rdQWe/IGd3DMXJVhmVGfxBMFYJ48DbZwT JMLQR19TuS8V/eESMfCPD2KgtgBPMm7h4= IronPort-SDR: C+smiBr2V8oceuq/x4BX/kocPE9wzBq7KxujGjnHN3GJxedPsvGro6LS2uHh80vDHfiQvqx0/O M8Ohs0pvC/yg== WDCIronportException: Internal To: libc-alpha@sourceware.org Subject: [PATCH v3 04/19] RISC-V: Add support for 32-bit vDSO calls Date: Sun, 12 Jul 2020 08:47:31 -0700 Message-Id: <50619acf4344de8022a28f34cd04c36eff6873ae.1594568655.git.alistair.francis@wdc.com> In-Reply-To: <cover.1594568655.git.alistair.francis@wdc.com> References: <cover.1594568655.git.alistair.francis@wdc.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: list From: Alistair Francis via Libc-alpha <libc-alpha@sourceware.org> Reply-To: Alistair Francis <alistair.francis@wdc.com> Cc: alistair.francis@wdc.com Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" <libc-alpha-bounces@sourceware.org>
Series	glibc port for 32-bit RISC-V (RV32) \| [v3,00/19] glibc port for 32-bit RISC-V (RV32) [v3,01/19] RISC-V: Use 64-bit time_t and off_t for RV32 and RV64 [v3,02/19] RISC-V: Cleanup some of the sysdep.h code [v3,03/19] RISC-V: Use 64-bit-time syscall numbers with the 32-bit port [v3,04/19] RISC-V: Add support for 32-bit vDSO calls [v3,05/19] RISC-V: Support dynamic loader for the 32-bit [v3,06/19] sysv/linux: riscv: Fix dl-cache.h indentation [v3,07/19] RISC-V: Add path of library directories for the 32-bit [v3,08/19] RISC-V: Add arch-syscall.h for RV32 [v3,09/19] RISC-V: nptl: update default pthread-offsets.h [v3,10/19] RISC-V: Support the 32-bit ABI implementation [v3,11/19] RISC-V: Hard float support for 32-bit [v3,12/19] RISC-V: Add ABI lists [v3,13/19] RISC-V: Add the RV32 libm-test-ulps [v3,14/19] RISC-V: Fix llrint and llround missing exceptions on RV32 [v3,15/19] RISC-V: Build Infastructure for 32-bit [v3,16/19] riscv32: Specify the arch_minimum_kernel as 5.4 [v3,17/19] RISC-V: Add rv32 path to RTLDLIST in ldd [v3,18/19] Documentation for the RISC-V 32-bit port [v3,19/19] Add RISC-V 32-bit target to build-many-glibcs.py

Commit Message

Alistair Francis July 12, 2020, 3:47 p.m. UTC

  ---
 sysdeps/unix/sysv/linux/riscv/sysdep.h | 27 ++++++++++++++++++--------
 1 file changed, 19 insertions(+), 8 deletions(-)

Comments

Maciej W. Rozycki July 16, 2020, 12:12 a.m. UTC | #1

On Sun, 12 Jul 2020, Alistair Francis via Libc-alpha wrote:

> diff --git a/sysdeps/unix/sysv/linux/riscv/sysdep.h b/sysdeps/unix/sysv/linux/riscv/sysdep.h
> index 62a9551f50..bf26379479 100644
> --- a/sysdeps/unix/sysv/linux/riscv/sysdep.h
> +++ b/sysdeps/unix/sysv/linux/riscv/sysdep.h
> @@ -136,14 +136,25 @@
>  
>  #else
>  
> -# define VDSO_NAME  "LINUX_4.15"
> -# define VDSO_HASH  182943605
> -
> -/* List of system calls which are supported as vsyscalls.  */
> -# define HAVE_CLOCK_GETRES64_VSYSCALL	"__vdso_clock_getres"
> -# define HAVE_CLOCK_GETTIME64_VSYSCALL	"__vdso_clock_gettime"
> -# define HAVE_GETTIMEOFDAY_VSYSCALL	"__vdso_gettimeofday"
> -# define HAVE_GETCPU_VSYSCALL		"__vdso_getcpu"
> +# if __WORDSIZE == 64
> +#  define VDSO_NAME  "LINUX_4.15"
> +#  define VDSO_HASH  182943605
> +
> +/* List of system calls which are supported as vsyscalls only
> +   for RV64.  */
> +#  define HAVE_CLOCK_GETRES64_VSYSCALL   "__vdso_clock_getres"
> +#  define HAVE_CLOCK_GETTIME64_VSYSCALL  "__vdso_clock_gettime"
> +#  define HAVE_GETTIMEOFDAY_VSYSCALL     "__vdso_gettimeofday"
> +# else
> +#  define VDSO_NAME  "LINUX_5.4"
> +#  define VDSO_HASH  61765876
> +
> +/* RV32 does not support the gettime VDSO syscalls.  */
> +# endif
> +
> +/* List of system calls which are supported as vsyscalls (for RV32 and
> +   RV64).  */
> +#  define HAVE_GETCPU_VSYSCALL           "__vdso_getcpu"
    ^^
 Extraneous space here.

 Please use tabs rather than spaces between the LHS and the RHS 
throughout.  Otherwise OK.  Thanks for adding the comments.

  Maciej

diff mbox series

Patch

diff --git a/sysdeps/unix/sysv/linux/riscv/sysdep.h b/sysdeps/unix/sysv/linux/riscv/sysdep.h
index 62a9551f50..bf26379479 100644
--- a/sysdeps/unix/sysv/linux/riscv/sysdep.h
+++ b/sysdeps/unix/sysv/linux/riscv/sysdep.h
@@ -136,14 +136,25 @@ 
 
 #else
 
-# define VDSO_NAME  "LINUX_4.15"
-# define VDSO_HASH  182943605
-
-/* List of system calls which are supported as vsyscalls.  */
-# define HAVE_CLOCK_GETRES64_VSYSCALL	"__vdso_clock_getres"
-# define HAVE_CLOCK_GETTIME64_VSYSCALL	"__vdso_clock_gettime"
-# define HAVE_GETTIMEOFDAY_VSYSCALL	"__vdso_gettimeofday"
-# define HAVE_GETCPU_VSYSCALL		"__vdso_getcpu"
+# if __WORDSIZE == 64
+#  define VDSO_NAME  "LINUX_4.15"
+#  define VDSO_HASH  182943605
+
+/* List of system calls which are supported as vsyscalls only
+   for RV64.  */
+#  define HAVE_CLOCK_GETRES64_VSYSCALL   "__vdso_clock_getres"
+#  define HAVE_CLOCK_GETTIME64_VSYSCALL  "__vdso_clock_gettime"
+#  define HAVE_GETTIMEOFDAY_VSYSCALL     "__vdso_gettimeofday"
+# else
+#  define VDSO_NAME  "LINUX_5.4"
+#  define VDSO_HASH  61765876
+
+/* RV32 does not support the gettime VDSO syscalls.  */
+# endif
+
+/* List of system calls which are supported as vsyscalls (for RV32 and
+   RV64).  */
+#  define HAVE_GETCPU_VSYSCALL           "__vdso_getcpu"
 
 # define INTERNAL_SYSCALL(name, nr, args...) \
 	internal_syscall##nr (SYS_ify (name), args)