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[153.221.239.170]) by smtp.googlemail.com with ESMTPSA id 98e67ed59e1d1-364ebf12bcesm4287557a91.7.2026.05.02.00.25.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 02 May 2026 00:25:40 -0700 (PDT) From: Daniel Palmer To: w@1wt.eu, linux@weissschuh.net Cc: linux-kernel@vger.kernel.org, Daniel Palmer Subject: [PATCH 1/3] tools/nolibc: unistd: Add getcwd() Date: Sat, 2 May 2026 16:25:25 +0900 Message-ID: <20260502072527.1805108-2-daniel@thingy.jp> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260502072527.1805108-1-daniel@thingy.jp> References: <20260502072527.1805108-1-daniel@thingy.jp> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add getcwd() for getting the current working directory. Signed-off-by: Daniel Palmer --- tools/include/nolibc/unistd.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/tools/include/nolibc/unistd.h b/tools/include/nolibc/unistd.h index 5882a6862066..c7f89c56bc9b 100644 --- a/tools/include/nolibc/unistd.h +++ b/tools/include/nolibc/unistd.h @@ -48,6 +48,28 @@ int access(const char *path, int amode) return faccessat(AT_FDCWD, path, amode, 0); } +/* + * char *getcwd(char *buf, size_t size); + */ + +static __attribute__((unused)) +int _sys_getcwd(char *buf, size_t size) +{ + return __nolibc_syscall2(__NR_getcwd, buf, size); +} + +static __attribute__((unused)) +char *getcwd(char *buf, size_t size) +{ + /* If successful we get the number of bytes written into + * the buffer, so check the result is positive. + */ + if (__sysret(_sys_getcwd(buf, size)) > 0) + return buf; + + /* On error return NULL, __sysret() above will have set errno */ + return NULL; +} static __attribute__((unused)) int msleep(unsigned int msecs) -- 2.53.0