glibc/sysdeps/unix/sysv/linux/riscv
Adhemerval Zanella 74d9b0811e 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 15:16:50 +01:00
..
bits Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
rv64 nptl: Add POSIX-proposed pthread_mutex_clocklock 2019-07-12 13:36:25 +00:00
sys Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
Implies
Makefile
Versions
atomic-machine.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
clone.S RISC-V: Fix elfutils testsuite unwind failures. 2019-02-13 14:25:00 -08:00
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. 2019-01-01 00:11:28 +00:00
dl-static.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
flush-icache.c riscv: Do not use __has_include__ 2019-06-06 11:24:32 +02:00
getcontext.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
init-first.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
ipc_priv.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
kernel-features.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
ldconfig.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
ldd-rewrite.sed
ldsodefs.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
libc-vdso.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
localplt.data
makecontext.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
profil-counter.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
readelflib.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
register-dump.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
setcontext.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
shlib-versions
sigcontextinfo.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
swapcontext.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
syscall.c Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
sysdep.S Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
sysdep.h riscv: Avoid clobbering register parameters in syscall 2020-02-16 15:16:50 +01:00
ucontext-macros.h Update copyright dates with scripts/update-copyrights. 2019-01-01 00:11:28 +00:00
ucontext_i.sym
vfork.S Fix RISC-V vfork build with Linux 5.3 kernel headers. 2019-09-20 21:28:34 +02:00