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commit ac55900387753ca93406ae5d99b0933803dbad16
parent 345c43bd6c7ddff26d3db804008f4bc72e12a546
Author: Cem Keylan <cem@ckyln.com>
Date:   Tue, 19 May 2020 02:56:28 +0300

busybox: i686 compatibility

Diffstat:
Mcore/busybox/checksums | 3+++
Acore/busybox/patches/1-date-64-prefix.patch | 53+++++++++++++++++++++++++++++++++++++++++++++++++++++
Acore/busybox/patches/2-time-64-prefix.patch | 43+++++++++++++++++++++++++++++++++++++++++++
Acore/busybox/patches/3-syscall-gettime.patch | 113+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Mcore/busybox/sources | 3+++
5 files changed, 215 insertions(+), 0 deletions(-)

diff --git a/core/busybox/checksums b/core/busybox/checksums @@ -12,3 +12,6 @@ c8b3502bf493336542247683f8d291753130141e5b20ecfda7077936751e83a7 inittab 09c2f601fec4e5c10664c22f787dafb9424efe219bf826727c356da90dfd60d5 adduser-no-setgid.patch f0e17fefc0af6b10205d72b242b6ef7481a58ff07726c62890ebc5893b96a396 install-fix-chown.patch 68e0c7d5e96902d3b890e89d9b018ae11d53ed3104bfedd624a1485df58b11cb print-unicode.patch +cfcb56b4b1f8c9b3aae15b06aea614ae39e069be678302dbe8976effb9ae101e 1-date-64-prefix.patch +033a9c70a92c7f08d8a70ac17f4a923390e114ec14af7e4b26efce798d872dff 2-time-64-prefix.patch +0f5588ff660de11efafc2cf53a1daf04a48b9736d12c1ddee599884ebf5bd1a0 3-syscall-gettime.patch diff --git a/core/busybox/patches/1-date-64-prefix.patch b/core/busybox/patches/1-date-64-prefix.patch @@ -0,0 +1,53 @@ +From b7b7452f292f03eefafa6fd1da9bcfc933dee15a Mon Sep 17 00:00:00 2001 +From: Alistair Francis <alistair.francis@wdc.com> +Date: Wed, 18 Sep 2019 09:28:49 -0700 +Subject: [PATCH] date: Use 64 prefix syscall if we have to + +Some 32-bit architectures no longer have the 32-bit time_t syscalls. +Instead they have suffixed syscalls that returns a 64-bit time_t. If +the architecture doesn't have the non-suffixed syscall and is using a +64-bit time_t let's use the suffixed syscall instead. + +This fixes build issues when building for RISC-V 32-bit with 5.1+ kernel +headers. + +If an architecture only supports the suffixed syscalls, but is still +using a 32-bit time_t fall back to the libc call. + +Upstream-Status: Backport [https://git.busybox.net/busybox/commit/?id=b7b7452f292f03eefafa6fd1da9bcfc933dee15a] +Signed-off-by: Alistair Francis <alistair.francis@wdc.com> +Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> +--- + coreutils/date.c | 11 +++++++++-- + 1 file changed, 9 insertions(+), 2 deletions(-) + +--- a/coreutils/date.c ++++ b/coreutils/date.c +@@ -36,7 +36,7 @@ + //config:# defaults to "no": stat's nanosecond field is a bit non-portable + //config:config FEATURE_DATE_NANO + //config: bool "Support %[num]N nanosecond format specifier" +-//config: default n # syscall(__NR_clock_gettime) ++//config: default n # syscall(__NR_clock_gettime) or syscall(__NR_clock_gettime64) + //config: depends on DATE + //config: select PLATFORM_LINUX + //config: help +@@ -271,10 +271,17 @@ int date_main(int argc UNUSED_PARAM, cha + */ + #endif + } else { +-#if ENABLE_FEATURE_DATE_NANO ++#if ENABLE_FEATURE_DATE_NANO && defined(__NR_clock_gettime) + /* libc has incredibly messy way of doing this, + * typically requiring -lrt. We just skip all this mess */ + syscall(__NR_clock_gettime, CLOCK_REALTIME, &ts); ++#elif ENABLE_FEATURE_DATE_NANO && __TIMESIZE == 64 ++ /* Let's only support the 64 suffix syscalls for 64-bit time_t. ++ * This simplifies the code for us as we don't need to convert ++ * between 64-bit and 32-bit. We also don't have a way to ++ * report overflow errors here. ++ */ ++ syscall(__NR_clock_gettime64, CLOCK_REALTIME, &ts); + #else + time(&ts.tv_sec); + #endif diff --git a/core/busybox/patches/2-time-64-prefix.patch b/core/busybox/patches/2-time-64-prefix.patch @@ -0,0 +1,43 @@ +From 902d3992922fc8db8495d5fb30a4581711b60c62 Mon Sep 17 00:00:00 2001 +From: Alistair Francis <alistair.francis@wdc.com> +Date: Wed, 18 Sep 2019 09:28:50 -0700 +Subject: [PATCH] time: Use 64 prefix syscall if we have to + +Some 32-bit architectures no longer have the 32-bit time_t syscalls. +Instead they have suffixed syscalls that returns a 64-bit time_t. If +the architecture doesn't have the non-suffixed syscall and is using a +64-bit time_t let's use the suffixed syscall instead. + +This fixes build issues when building for RISC-V 32-bit with 5.1+ kernel +headers. + +If an architecture only supports the suffixed syscalls, but is still +using a 32-bit time_t report a compilation error. This avoids us have to +deal with converting between 64-bit and 32-bit values. There are +currently no architectures where this is the case. + +Upstream-Status: Backport [https://git.busybox.net/busybox/commit/?id=902d3992922fc8db8495d5fb30a4581711b60c62] +Signed-off-by: Alistair Francis <alistair.francis@wdc.com> +Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> +--- + libbb/time.c | 7 +++++++ + 1 file changed, 7 insertions(+) + +--- a/libbb/time.c ++++ b/libbb/time.c +@@ -257,7 +257,14 @@ char* FAST_FUNC strftime_YYYYMMDDHHMMSS( + * typically requiring -lrt. We just skip all this mess */ + static void get_mono(struct timespec *ts) + { +- if (syscall(__NR_clock_gettime, CLOCK_MONOTONIC, ts)) ++#if defined(__NR_clock_gettime) ++ if (syscall(__NR_clock_gettime, CLOCK_MONOTONIC, ts)) ++#elif __TIMESIZE == 64 ++ if (syscall(__NR_clock_gettime64, CLOCK_MONOTONIC, ts)) ++#else ++# error "We currently don't support architectures without " \ ++ "the __NR_clock_gettime syscall and 32-bit time_t" ++#endif + bb_error_msg_and_die("clock_gettime(MONOTONIC) failed"); + } + unsigned long long FAST_FUNC monotonic_ns(void) diff --git a/core/busybox/patches/3-syscall-gettime.patch b/core/busybox/patches/3-syscall-gettime.patch @@ -0,0 +1,113 @@ +From be5a505d771a77c640acc35ceaa470c80e62f954 Mon Sep 17 00:00:00 2001 +From: Denys Vlasenko <vda.linux@googlemail.com> +Date: Thu, 24 Oct 2019 16:26:55 +0200 +Subject: [PATCH] Remove syscall wrappers around clock_gettime, closes 12091 + +12091 "Direct use of __NR_clock_gettime is not time64-safe". + +function old new delta +runsv_main 1698 1712 +14 +startservice 378 383 +5 +get_mono 31 25 -6 +date_main 932 926 -6 +gettimeofday_ns 17 - -17 +------------------------------------------------------------------------------ +(add/remove: 0/1 grow/shrink: 2/2 up/down: 19/-29) Total: -10 bytes + +Upstream-Status: Backport [https://git.busybox.net/busybox/commit/?id=be5a505d771a77c640acc35ceaa470c80e62f954] +Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> +--- + Makefile.flags | 6 ++++-- + coreutils/date.c | 16 +++------------- + libbb/time.c | 11 +---------- + runit/runsv.c | 11 +---------- + 4 files changed, 9 insertions(+), 35 deletions(-) + +--- a/Makefile.flags ++++ b/Makefile.flags +@@ -129,10 +129,12 @@ endif + # fall back to using a temp file: + CRYPT_AVAILABLE := $(shell echo 'int main(void){return 0;}' >crypttest.c; $(CC) $(CFLAGS) -lcrypt -o /dev/null crypttest.c >/dev/null 2>&1 && echo "y"; rm crypttest.c) + ifeq ($(CRYPT_AVAILABLE),y) +-LDLIBS += m crypt ++LDLIBS += m rt crypt + else +-LDLIBS += m ++LDLIBS += m rt + endif ++# libm may be needed for dc, awk, ntpd ++# librt may be needed for clock_gettime() + + # libpam may use libpthread, libdl and/or libaudit. + # On some platforms that requires an explicit -lpthread, -ldl, -laudit. +--- a/coreutils/date.c ++++ b/coreutils/date.c +@@ -33,10 +33,9 @@ + //config: Enable option (-I) to output an ISO-8601 compliant + //config: date/time string. + //config: +-//config:# defaults to "no": stat's nanosecond field is a bit non-portable + //config:config FEATURE_DATE_NANO + //config: bool "Support %[num]N nanosecond format specifier" +-//config: default n # syscall(__NR_clock_gettime) or syscall(__NR_clock_gettime64) ++//config: default n # stat's nanosecond field is a bit non-portable + //config: depends on DATE + //config: select PLATFORM_LINUX + //config: help +@@ -271,17 +270,8 @@ int date_main(int argc UNUSED_PARAM, cha + */ + #endif + } else { +-#if ENABLE_FEATURE_DATE_NANO && defined(__NR_clock_gettime) +- /* libc has incredibly messy way of doing this, +- * typically requiring -lrt. We just skip all this mess */ +- syscall(__NR_clock_gettime, CLOCK_REALTIME, &ts); +-#elif ENABLE_FEATURE_DATE_NANO && __TIMESIZE == 64 +- /* Let's only support the 64 suffix syscalls for 64-bit time_t. +- * This simplifies the code for us as we don't need to convert +- * between 64-bit and 32-bit. We also don't have a way to +- * report overflow errors here. +- */ +- syscall(__NR_clock_gettime64, CLOCK_REALTIME, &ts); ++#if ENABLE_FEATURE_DATE_NANO ++ clock_gettime(CLOCK_REALTIME, &ts); + #else + time(&ts.tv_sec); + #endif +--- a/libbb/time.c ++++ b/libbb/time.c +@@ -253,18 +253,9 @@ char* FAST_FUNC strftime_YYYYMMDDHHMMSS( + #define CLOCK_MONOTONIC 1 + #endif + +-/* libc has incredibly messy way of doing this, +- * typically requiring -lrt. We just skip all this mess */ + static void get_mono(struct timespec *ts) + { +-#if defined(__NR_clock_gettime) +- if (syscall(__NR_clock_gettime, CLOCK_MONOTONIC, ts)) +-#elif __TIMESIZE == 64 +- if (syscall(__NR_clock_gettime64, CLOCK_MONOTONIC, ts)) +-#else +-# error "We currently don't support architectures without " \ +- "the __NR_clock_gettime syscall and 32-bit time_t" +-#endif ++ if (clock_gettime(CLOCK_MONOTONIC, ts)) + bb_error_msg_and_die("clock_gettime(MONOTONIC) failed"); + } + unsigned long long FAST_FUNC monotonic_ns(void) +--- a/runit/runsv.c ++++ b/runit/runsv.c +@@ -51,11 +51,9 @@ + #if ENABLE_MONOTONIC_SYSCALL + #include <sys/syscall.h> + +-/* libc has incredibly messy way of doing this, +- * typically requiring -lrt. We just skip all this mess */ + static void gettimeofday_ns(struct timespec *ts) + { +- syscall(__NR_clock_gettime, CLOCK_REALTIME, ts); ++ clock_gettime(CLOCK_REALTIME, ts); + } + #else + static void gettimeofday_ns(struct timespec *ts) diff --git a/core/busybox/sources b/core/busybox/sources @@ -12,3 +12,6 @@ patches/modprobe-kernel-version.patch patches/adduser-no-setgid.patch patches/install-fix-chown.patch patches/print-unicode.patch +patches/1-date-64-prefix.patch +patches/2-time-64-prefix.patch +patches/3-syscall-gettime.patch