From: Mingli Yu <mingli...@windriver.com> Add devmem 128-bit support [1].
[1] https://git.busybox.net/busybox/commit/?id=d432049f288c9acdc4a7caa729c68ceba3c5dca1 Signed-off-by: Mingli Yu <mingli...@windriver.com> --- .../0001-devmem-add-128-bit-width.patch | 128 ++++++++++++++++++ meta/recipes-core/busybox/busybox_1.35.0.bb | 1 + 2 files changed, 129 insertions(+) create mode 100644 meta/recipes-core/busybox/busybox/0001-devmem-add-128-bit-width.patch diff --git a/meta/recipes-core/busybox/busybox/0001-devmem-add-128-bit-width.patch b/meta/recipes-core/busybox/busybox/0001-devmem-add-128-bit-width.patch new file mode 100644 index 0000000000..985e2bf1d9 --- /dev/null +++ b/meta/recipes-core/busybox/busybox/0001-devmem-add-128-bit-width.patch @@ -0,0 +1,128 @@ +From d432049f288c9acdc4a7caa729c68ceba3c5dca1 Mon Sep 17 00:00:00 2001 +From: Aaro Koskinen <aaro.koski...@nokia.com> +Date: Thu, 25 Aug 2022 18:47:02 +0300 +Subject: [PATCH] devmem: add 128-bit width + +Add 128-bit width if the compiler provides the needed type. + +function old new delta +devmem_main 405 464 +59 +.rodata 109025 109043 +18 +------------------------------------------------------------------------------ +(add/remove: 0/0 grow/shrink: 2/0 up/down: 77/0) Total: 77 bytes + +Upstream-Status: Backport [https://git.busybox.net/busybox/commit/?id=d432049f288c9acdc4a7caa729c68ceba3c5dca1] + +Signed-off-by: Aaro Koskinen <aaro.koski...@nokia.com> +Signed-off-by: Aaro Koskinen <aaro.koski...@iki.fi> +Signed-off-by: Denys Vlasenko <vda.li...@googlemail.com> +Signed-off-by: Mingli Yu <mingli...@windriver.com> +--- + miscutils/devmem.c | 68 ++++++++++++++++++++++++++++++---------------- + 1 file changed, 44 insertions(+), 24 deletions(-) + +diff --git a/miscutils/devmem.c b/miscutils/devmem.c +index f9f0276bc..f21621bd6 100644 +--- a/miscutils/devmem.c ++++ b/miscutils/devmem.c +@@ -29,7 +29,6 @@ int devmem_main(int argc UNUSED_PARAM, char **argv) + { + void *map_base, *virt_addr; + uint64_t read_result; +- uint64_t writeval = writeval; /* for compiler */ + off_t target; + unsigned page_size, mapped_size, offset_in_page; + int fd; +@@ -64,9 +63,6 @@ int devmem_main(int argc UNUSED_PARAM, char **argv) + width = strchrnul(bhwl, (argv[2][0] | 0x20)) - bhwl; + width = sizes[width]; + } +- /* VALUE */ +- if (argv[3]) +- writeval = bb_strtoull(argv[3], NULL, 0); + } else { /* argv[2] == NULL */ + /* make argv[3] to be a valid thing to fetch */ + argv--; +@@ -96,28 +92,46 @@ int devmem_main(int argc UNUSED_PARAM, char **argv) + virt_addr = (char*)map_base + offset_in_page; + + if (!argv[3]) { +- switch (width) { +- case 8: +- read_result = *(volatile uint8_t*)virt_addr; +- break; +- case 16: +- read_result = *(volatile uint16_t*)virt_addr; +- break; +- case 32: +- read_result = *(volatile uint32_t*)virt_addr; +- break; +- case 64: +- read_result = *(volatile uint64_t*)virt_addr; +- break; +- default: +- bb_simple_error_msg_and_die("bad width"); ++#ifdef __SIZEOF_INT128__ ++ if (width == 128) { ++ unsigned __int128 rd = ++ *(volatile unsigned __int128 *)virt_addr; ++ printf("0x%016llX%016llX\n", ++ (unsigned long long)(uint64_t)(rd >> 64), ++ (unsigned long long)(uint64_t)rd ++ ); ++ } else ++#endif ++ { ++ switch (width) { ++ case 8: ++ read_result = *(volatile uint8_t*)virt_addr; ++ break; ++ case 16: ++ read_result = *(volatile uint16_t*)virt_addr; ++ break; ++ case 32: ++ read_result = *(volatile uint32_t*)virt_addr; ++ break; ++ case 64: ++ read_result = *(volatile uint64_t*)virt_addr; ++ break; ++ default: ++ bb_simple_error_msg_and_die("bad width"); ++ } ++// printf("Value at address 0x%"OFF_FMT"X (%p): 0x%llX\n", ++// target, virt_addr, ++// (unsigned long long)read_result); ++ /* Zero-padded output shows the width of access just done */ ++ printf("0x%0*llX\n", (width >> 2), (unsigned long long)read_result); + } +-// printf("Value at address 0x%"OFF_FMT"X (%p): 0x%llX\n", +-// target, virt_addr, +-// (unsigned long long)read_result); +- /* Zero-padded output shows the width of access just done */ +- printf("0x%0*llX\n", (width >> 2), (unsigned long long)read_result); + } else { ++ /* parse VALUE */ ++#ifdef __SIZEOF_INT128__ ++ unsigned __int128 writeval = strtoumax(argv[3], NULL, 0); ++#else ++ uint64_t writeval = bb_strtoull(argv[3], NULL, 0); ++#endif + switch (width) { + case 8: + *(volatile uint8_t*)virt_addr = writeval; +@@ -135,6 +149,12 @@ int devmem_main(int argc UNUSED_PARAM, char **argv) + *(volatile uint64_t*)virt_addr = writeval; + // read_result = *(volatile uint64_t*)virt_addr; + break; ++#ifdef __SIZEOF_INT128__ ++ case 128: ++ *(volatile unsigned __int128 *)virt_addr = writeval; ++// read_result = *(volatile uint64_t*)virt_addr; ++ break; ++#endif + default: + bb_simple_error_msg_and_die("bad width"); + } +-- +2.25.1 + diff --git a/meta/recipes-core/busybox/busybox_1.35.0.bb b/meta/recipes-core/busybox/busybox_1.35.0.bb index edf896485e..e9ca6fdb1a 100644 --- a/meta/recipes-core/busybox/busybox_1.35.0.bb +++ b/meta/recipes-core/busybox/busybox_1.35.0.bb @@ -50,6 +50,7 @@ SRC_URI = "https://busybox.net/downloads/busybox-${PV}.tar.bz2;name=tarball \ file://0001-libbb-sockaddr2str-ensure-only-printable-characters-.patch \ file://0002-nslookup-sanitize-all-printed-strings-with-printable.patch \ file://CVE-2022-30065.patch \ + file://0001-devmem-add-128-bit-width.patch \ " SRC_URI:append:libc-musl = " file://musl.cfg " -- 2.25.1
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