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glibc/sysdeps/unix/sysv/linux/riscv
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Adhemerval Zanella 5d31b083e4 riscv: Avoid clobbering register parameters in syscall 
The riscv INTERNAL_SYSCALL macro might clobber the register
parameter if the argument itself might clobber any register (a function
call for instance).

This patch fixes it by using temporary variables for the expressions
between the register assignments (as indicated by GCC documentation,
6.47.5.2 Specifying Registers for Local Variables).

It is similar to the fix done for MIPS (bug 25523).

Checked with riscv64-linux-gnu-rv64imafdc-lp64d build.

(cherry picked from commit be74b42ee2)
 		2020-02-16 14:00:21 +01:00
..
bits Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
rv64 Linux: Add tables with system call numbers 2020-01-02 10:18:10 +01:00
sys Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
Implies RISC-V: Build Infastructure 2018-01-29 10:43:15 -08:00
Makefile elf: Move vDSO setup to rtld (BZ#24967) 2020-01-03 11:22:07 -03:00
Versions RISC-V: Build Infastructure 2018-01-29 10:43:15 -08:00
atomic-machine.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
clone.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
configure RISC-V: Fix `test' operand error with soft-float ABI being configured 2019-03-30 01:11:31 +00:00
configure.ac RISC-V: Fix `test' operand error with soft-float ABI being configured 2019-03-30 01:11:31 +00:00
dl-cache.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
flush-icache.c elf: Move vDSO setup to rtld (BZ#24967) 2020-01-03 11:22:07 -03:00
getcontext.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
kernel-features.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
ldconfig.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
ldd-rewrite.sed RISC-V: Build Infastructure 2018-01-29 10:43:15 -08:00
localplt.data RISC-V: Add ABI Lists 2018-01-29 10:37:28 -08:00
makecontext.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
readelflib.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
register-dump.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
setcontext.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
shlib-versions RISC-V: Build Infastructure 2018-01-29 10:43:15 -08:00
sigcontextinfo.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
swapcontext.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
syscall.c Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
sysdep.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
sysdep.h riscv: Avoid clobbering register parameters in syscall 2020-02-16 14:00:21 +01:00
ucontext-macros.h Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
ucontext_i.sym RISC-V: Linux ABI 2018-01-29 10:37:27 -08:00
vfork.S Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00