Goran Ferenc 0b523a85e1 MIPS: VDSO: Add implementation of gettimeofday() fallback ... This patch adds gettimeofday_fallback() function that wraps assembly invocation of gettimeofday() syscall using __NR_gettimeofday. This function is used if pure VDSO implementation gettimeofday() does not succeed for any reason. Its imeplementation is enclosed in "#ifdef CONFIG_MIPS_CLOCK_VSYSCALL" to be in sync with the similar arrangement for __vdso_gettimeofday(). If syscall invocation via __NR_gettimeofday fails, register a3 will be set. So, after the syscall, register a3 is tested and the return valuem is negated if it's set. Signed-off-by: Goran Ferenc <goran.ferenc@imgtec.com> Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com> Signed-off-by: Aleksandar Markovic <aleksandar.markovic@imgtec.com> Cc: Douglas Leung <douglas.leung@imgtec.com> Cc: James Hogan <james.hogan@imgtec.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Petar Jovanovic <petar.jovanovic@imgtec.com> Cc: Raghu Gandham <raghu.gandham@imgtec.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/16640/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>		2017-06-29 02:42:30 +02:00
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.gitignore
elf.S
genvdso.c
genvdso.h
gettimeofday.c	MIPS: VDSO: Add implementation of gettimeofday() fallback	2017-06-29 02:42:30 +02:00
Makefile	MIPS: VDSO: Explicitly use -fno-asynchronous-unwind-tables	2017-02-17 11:32:12 +00:00
sigreturn.S
vdso.h	MIPS: VDSO: Add implementations of gettimeofday() and clock_gettime()	2015-11-11 08:36:41 +01:00
vdso.lds.S	MIPS: VDSO: Add implementations of gettimeofday() and clock_gettime()	2015-11-11 08:36:41 +01:00