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| author | Ed Schouten <ed@FreeBSD.org> | 2016-08-10 21:02:41 +0000 |
|---|---|---|
| committer | Ed Schouten <ed@FreeBSD.org> | 2016-08-10 21:02:41 +0000 |
| commit | 13b4b4df987d8f05c2cd5813cfe05db953c37c9e (patch) | |
| tree | 6f1539b3db69da365d8d1ef2df5cbd14c5892af6 /sys/conf | |
| parent | 6178f8e8a6ab27d49d4d0c5cbd05be4ca2d140f7 (diff) | |
| download | src-13b4b4df987d8f05c2cd5813cfe05db953c37c9e.tar.gz src-13b4b4df987d8f05c2cd5813cfe05db953c37c9e.zip | |
Provide the CloudABI vDSO to its executables.
CloudABI executables already provide support for passing in vDSOs. This
functionality is used by the emulator for OS X to inject system call
handlers. On FreeBSD, we could use it to optimize calls to
gettimeofday(), etc.
Though I don't have any plans to optimize any system calls right now,
let's go ahead and already pass in a vDSO. This will allow us to
simplify the executables, as the traditional "syscall" shims can be
removed entirely. It also means that we gain more flexibility with
regards to adding and removing system calls.
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D7438
Notes
Notes:
svn path=/head/; revision=303941
Diffstat (limited to 'sys/conf')
| -rw-r--r-- | sys/conf/files | 1 | ||||
| -rw-r--r-- | sys/conf/files.amd64 | 12 | ||||
| -rw-r--r-- | sys/conf/files.arm64 | 12 |
3 files changed, 25 insertions, 0 deletions
diff --git a/sys/conf/files b/sys/conf/files index 4f5fa71ee9b8..993f0c3892ab 100644 --- a/sys/conf/files +++ b/sys/conf/files @@ -284,6 +284,7 @@ compat/cloudabi/cloudabi_proc.c optional compat_cloudabi64 compat/cloudabi/cloudabi_random.c optional compat_cloudabi64 compat/cloudabi/cloudabi_sock.c optional compat_cloudabi64 compat/cloudabi/cloudabi_thread.c optional compat_cloudabi64 +compat/cloudabi/cloudabi_vdso.c optional compat_cloudabi64 compat/cloudabi64/cloudabi64_fd.c optional compat_cloudabi64 compat/cloudabi64/cloudabi64_module.c optional compat_cloudabi64 compat/cloudabi64/cloudabi64_poll.c optional compat_cloudabi64 diff --git a/sys/conf/files.amd64 b/sys/conf/files.amd64 index 331b811081f7..df5d1bcfb88e 100644 --- a/sys/conf/files.amd64 +++ b/sys/conf/files.amd64 @@ -8,6 +8,18 @@ # dependency lines other than the first are silently ignored. # # +cloudabi64_vdso.o optional compat_cloudabi64 \ + dependency "$S/contrib/cloudabi/cloudabi_vdso_x86_64.c" \ + compile-with "${CC} -shared -nostdinc -nostdlib -Wl,-T$S/compat/cloudabi64/cloudabi64_vdso.lds.s -D_KERNEL -I. -I$S -I$S/contrib/cloudabi -O2 -fomit-frame-pointer $S/contrib/cloudabi/cloudabi_vdso_x86_64.c -o ${.TARGET}" \ + no-obj no-implicit-rule \ + clean "cloudabi64_vdso.o" +# +cloudabi64_vdso_blob.o optional compat_cloudabi64 \ + dependency "cloudabi64_vdso.o" \ + compile-with "${OBJCOPY} --input-target binary --output-target elf64-x86-64-freebsd --binary-architecture i386 cloudabi64_vdso.o ${.TARGET}" \ + no-implicit-rule \ + clean "cloudabi64_vdso_blob.o" +# linux32_genassym.o optional compat_linux32 \ dependency "$S/amd64/linux32/linux32_genassym.c" \ compile-with "${CC} ${CFLAGS:N-fno-common} -c ${.IMPSRC}" \ diff --git a/sys/conf/files.arm64 b/sys/conf/files.arm64 index b4c82085ace0..31acaf9ce32f 100644 --- a/sys/conf/files.arm64 +++ b/sys/conf/files.arm64 @@ -1,4 +1,16 @@ # $FreeBSD$ +cloudabi64_vdso.o optional compat_cloudabi64 \ + dependency "$S/contrib/cloudabi/cloudabi_vdso_aarch64.c" \ + compile-with "${CC} -shared -nostdinc -nostdlib -Wl,-T$S/compat/cloudabi64/cloudabi64_vdso.lds.s -D_KERNEL -I. -I$S -I$S/contrib/cloudabi -O2 -fomit-frame-pointer $S/contrib/cloudabi/cloudabi_vdso_aarch64.c -o ${.TARGET}" \ + no-obj no-implicit-rule \ + clean "cloudabi64_vdso.o" +# +cloudabi64_vdso_blob.o optional compat_cloudabi64 \ + dependency "cloudabi64_vdso.o" \ + compile-with "${OBJCOPY} --input-target binary --output-target elf64-littleaarch64 --binary-architecture aarch64 cloudabi64_vdso.o ${.TARGET}" \ + no-implicit-rule \ + clean "cloudabi64_vdso_blob.o" +# arm/arm/generic_timer.c standard arm/arm/gic.c standard arm/arm/gic_fdt.c optional fdt |