diff options
Diffstat (limited to 'meta-xilinx/meta-microblaze/recipes-core/newlib/files/0009-Added-MB-64-support-to-strcmp-strcpy-strlen-files.patch')
| -rw-r--r-- | meta-xilinx/meta-microblaze/recipes-core/newlib/files/0009-Added-MB-64-support-to-strcmp-strcpy-strlen-files.patch | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/meta-xilinx/meta-microblaze/recipes-core/newlib/files/0009-Added-MB-64-support-to-strcmp-strcpy-strlen-files.patch b/meta-xilinx/meta-microblaze/recipes-core/newlib/files/0009-Added-MB-64-support-to-strcmp-strcpy-strlen-files.patch new file mode 100644 index 000000000..38508b550 --- /dev/null +++ b/meta-xilinx/meta-microblaze/recipes-core/newlib/files/0009-Added-MB-64-support-to-strcmp-strcpy-strlen-files.patch @@ -0,0 +1,227 @@ +From 19d7b2a34f3c69d62f570ac9d0f6bc3cd584b496 Mon Sep 17 00:00:00 2001 +From: Nagaraju <nmekala@xilinx.com> +Date: Thu, 14 Mar 2019 18:16:32 +0530 +Subject: [PATCH 09/11] Added MB-64 support to strcmp/strcpy/strlen files + +--- + newlib/libc/machine/microblaze/strcmp.c | 61 ++++++++++++++++++++++++++++++++- + newlib/libc/machine/microblaze/strcpy.c | 57 ++++++++++++++++++++++++++++++ + newlib/libc/machine/microblaze/strlen.c | 38 ++++++++++++++++++++ + 3 files changed, 155 insertions(+), 1 deletion(-) + +diff --git a/newlib/libc/machine/microblaze/strcmp.c b/newlib/libc/machine/microblaze/strcmp.c +index 3119d82..dac64da 100644 +--- a/newlib/libc/machine/microblaze/strcmp.c ++++ b/newlib/libc/machine/microblaze/strcmp.c +@@ -133,6 +133,65 @@ strcmp (const char *s1, + + #include "mb_endian.h" + ++#ifdef __arch64__ ++ asm volatile (" \n\ ++ orl r9, r0, r0 /* Index register */\n\ ++check_alignment: \n\ ++ andli r3, r5, 3 \n\ ++ andli r4, r6, 3 \n\ ++ beanei r3, try_align_args \n\ ++ beanei r4, regular_strcmp /* At this point we don't have a choice */ \n\ ++cmp_loop: \n" ++ LOAD4BYTES("r3", "r5", "r9") ++ LOAD4BYTES("r4", "r6", "r9") ++" \n\ ++ pcmplbf r7, r3, r0 /* See if there is Null byte */ \n\ ++ beanei r7, end_cmp_loop /* IF yes (r7 > 0) use byte compares in end_cmp_loop */ \n\ ++ cmplu r7, r4, r3 /* ELSE compare whole word */ \n\ ++ beanei r7, end_cmp \n\ ++ addlik r9, r9, 4 /* delay slot */ \n\ ++ breaid cmp_loop \n\ ++ nop /* delay slot */ \n\ ++end_cmp_loop: \n\ ++ lbu r3, r5, r9 /* byte compare loop */ \n\ ++ lbu r4, r6, r9 \n\ ++ cmplu r7, r4, r3 /* Compare bytes */ \n\ ++ beanei r7, end_cmp_early \n\ ++ addlik r9, r9, 1 /* delay slot */ \n\ ++ beaneid r3, end_cmp_loop /* If reached null on one string, terminate */ \n\ ++ nop \n\ ++end_cmp_early: \n\ ++ or r3, r0, r7 /* delay slot */ \n\ ++ rtsd r15, 8 \n\ ++ nop \n\ ++try_align_args: \n\ ++ xorl r7, r4, r3 \n\ ++ beanei r7, regular_strcmp /* cannot align args */ \n\ ++ rsublik r10, r3, 4 /* Number of initial bytes to align */ \n\ ++align_loop: \n\ ++ lbu r3, r5, r9 \n\ ++ lbu r4, r6, r9 \n\ ++ cmpu r7, r4, r3 \n\ ++ beanei r7, end_cmp \n\ ++ beaeqi r3, end_cmp \n\ ++ addlik r10, r10, -1 \n\ ++ addlik r9, r9, 1 \n\ ++ beaeqid r10, cmp_loop \n\ ++ nop \n\ ++ breai align_loop \n\ ++regular_strcmp: \n\ ++ lbu r3, r5, r9 \n\ ++ lbu r4, r6, r9 \n\ ++ cmplu r7, r4, r3 \n\ ++ beanei r7, end_cmp \n\ ++ beaeqi r3, end_cmp \n\ ++ breaid regular_strcmp \n\ ++ addlik r9, r9, 1 \n\ ++end_cmp: \n\ ++ or r3, r0, r7 \n\ ++ rtsd r15, 8 \n\ ++ nop /* Return strcmp result */"); ++#else + asm volatile (" \n\ + or r9, r0, r0 /* Index register */\n\ + check_alignment: \n\ +@@ -181,11 +240,11 @@ regular_strcmp: + bnei r7, end_cmp \n\ + beqi r3, end_cmp \n\ + brid regular_strcmp \n\ +- addik r9, r9, 1 \n\ + end_cmp: \n\ + rtsd r15, 8 \n\ + or r3, r0, r7 /* Return strcmp result */"); + ++#endif + #endif /* ! HAVE_HW_PCMP */ + } + +diff --git a/newlib/libc/machine/microblaze/strcpy.c b/newlib/libc/machine/microblaze/strcpy.c +index 62072fa..6dbc60d 100644 +--- a/newlib/libc/machine/microblaze/strcpy.c ++++ b/newlib/libc/machine/microblaze/strcpy.c +@@ -125,6 +125,62 @@ strcpy (char *__restrict dst0, + #else + + #include "mb_endian.h" ++#ifdef __arch64__ ++ ++ asm volatile (" \n\ ++ orl r9, r0, r0 /* Index register */ \n\ ++check_alignment: \n\ ++ andli r3, r5, 3 \n\ ++ andli r4, r6, 3 \n\ ++ beanei r3, try_align_args \n\ ++ beanei r4, regular_strcpy /* At this point we dont have a choice */ \n\ ++cpy_loop: \n" ++ LOAD4BYTES("r3", "r6", "r9") ++" \n\ ++ pcmplbf r4, r0, r3 \n\ ++ beanei r4, cpy_bytes /* If r4 != 0, then null present within string */\n" ++ STORE4BYTES("r3", "r5", "r9") ++" \n\ ++ addlik r9, r9, 4 \n\ ++ breaid cpy_loop \n\ ++ nop \n\ ++cpy_bytes: \n\ ++ lbu r3, r6, r9 \n\ ++ sb r3, r5, r9 \n\ ++ addlik r4, r4, -1 \n\ ++ addlik r9, r9, 1 /* delay slot */\n\ ++ beaneid r4, cpy_bytes \n\ ++ nop \n\ ++cpy_null: \n\ ++ orl r3, r0, r5 /* Return strcpy result */\n\ ++ rtsd r15, 8 \n\ ++ nop \n\ ++try_align_args: \n\ ++ xorl r7, r4, r3 \n\ ++ beanei r7, regular_strcpy /* cannot align args */\n\ ++ rsublik r10, r3, 4 /* Number of initial bytes to align */\n\ ++align_loop: \n\ ++ lbu r3, r6, r9 \n\ ++ sb r3, r5, r9 \n\ ++ addlik r10, r10, -1 \n\ ++ beaeqid r3, end_cpy /* Break if we have seen null character */\n\ ++ nop \n\ ++ addlik r9, r9, 1 \n\ ++ beaneid r10, align_loop \n\ ++ nop \n\ ++ breai cpy_loop \n\ ++regular_strcpy: \n\ ++ lbu r3, r6, r9 \n\ ++ sb r3, r5, r9 \n\ ++ addlik r9, r9, 1 \n\ ++ beaneid r3, regular_strcpy \n\ ++ nop \n\ ++end_cpy: \n\ ++ orl r3, r0, r5 \n\ ++ rtsd r15, 8 \n\ ++ nop /* Return strcpy result */"); ++ ++#else + + asm volatile (" \n\ + or r9, r0, r0 /* Index register */ \n\ +@@ -171,6 +227,7 @@ regular_strcpy: \n\ + end_cpy: \n\ + rtsd r15, 8 \n\ + or r3, r0, r5 /* Return strcpy result */"); ++#endif + #endif /* ! HAVE_HW_PCMP */ + } + +diff --git a/newlib/libc/machine/microblaze/strlen.c b/newlib/libc/machine/microblaze/strlen.c +index acb4464..c04fa4f 100644 +--- a/newlib/libc/machine/microblaze/strlen.c ++++ b/newlib/libc/machine/microblaze/strlen.c +@@ -116,6 +116,43 @@ strlen (const char *str) + + #include "mb_endian.h" + ++#ifdef __arch64__ ++ asm volatile (" \n\ ++ orl r9, r0, r0 /* Index register */ \n\ ++check_alignment: \n\ ++ andli r3, r5, 3 \n\ ++ beanei r3, align_arg \n\ ++len_loop: \n" ++ LOAD4BYTES("r3", "r5", "r9") ++" \n\ ++ pcmplbf r4, r3, r0 \n\ ++ beanei r4, end_len \n\ ++ addik r9, r9, 4 \n\ ++ breaid len_loop \n\ ++ nop \n\ ++end_len: \n\ ++ lbu r3, r5, r9 \n\ ++ beaeqi r3, done_len \n\ ++ addik r9, r9, 1 \n\ ++ breaid end_len \n\ ++ nop \n\ ++done_len: \n\ ++ orl r3, r0, r9 /* Return len */ \n\ ++ rtsd r15, 8 \n\ ++ nop \n\ ++align_arg: \n\ ++ rsublik r10, r3, 4 \n\ ++align_loop: \n\ ++ lbu r3, r5, r9 \n\ ++ addlik r10, r10, -1 \n\ ++ beaeqid r3, done_len \n\ ++ nop \n\ ++ addlik r9, r9, 1 \n\ ++ beaneid r10, align_loop \n\ ++ nop \n\ ++ breai len_loop"); ++ ++#else + asm volatile (" \n\ + or r9, r0, r0 /* Index register */ \n\ + check_alignment: \n\ +@@ -146,5 +183,6 @@ align_loop: \n\ + addik r9, r9, 1 \n\ + bri len_loop"); + ++#endif + #endif /* ! HAVE_HW_PCMP */ + } +-- +2.7.4 + |