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-rw-r--r--tools/include/nolibc/Makefile19
-rw-r--r--tools/include/nolibc/arch-arm.h7
-rw-r--r--tools/include/nolibc/arch-hexagon.h159
-rw-r--r--tools/include/nolibc/arch-mips.h8
-rw-r--r--tools/include/nolibc/arch-parisc.h28
-rw-r--r--tools/include/nolibc/arch-powerpc.h7
-rw-r--r--tools/include/nolibc/arch-sh.h18
-rw-r--r--tools/include/nolibc/arch-x86.h2
-rw-r--r--tools/include/nolibc/arch.h7
-rw-r--r--tools/include/nolibc/compiler.h9
-rw-r--r--tools/include/nolibc/dirent.h25
-rw-r--r--tools/include/nolibc/err.h2
-rw-r--r--tools/include/nolibc/nolibc.h1
-rw-r--r--tools/include/nolibc/stdlib.h12
-rw-r--r--tools/include/nolibc/sys.h60
-rw-r--r--tools/include/nolibc/sys/select.h6
-rw-r--r--tools/include/nolibc/sys/sendfile.h41
-rw-r--r--tools/include/nolibc/types.h2
-rw-r--r--tools/include/nolibc/unistd.h4
19 files changed, 369 insertions, 48 deletions
diff --git a/tools/include/nolibc/Makefile b/tools/include/nolibc/Makefile
index 6d213d372bf8..0880be0f6ef5 100644
--- a/tools/include/nolibc/Makefile
+++ b/tools/include/nolibc/Makefile
@@ -17,7 +17,23 @@ endif
# it defaults to this nolibc directory.
OUTPUT ?= $(CURDIR)/
-architectures := alpha arm arm64 loongarch m68k mips openrisc parisc powerpc riscv s390 sh sparc x86
+architectures := \
+ alpha \
+ arm \
+ arm64 \
+ hexagon \
+ loongarch \
+ m68k \
+ mips \
+ openrisc \
+ parisc \
+ powerpc \
+ riscv \
+ s390 \
+ sh \
+ sparc \
+ x86 \
+
arch_files := arch.h $(addsuffix .h, $(addprefix arch-, $(architectures)))
all_files := \
alloca.h \
@@ -59,6 +75,7 @@ all_files := \
sys/reboot.h \
sys/resource.h \
sys/select.h \
+ sys/sendfile.h \
sys/stat.h \
sys/syscall.h \
sys/sysmacros.h \
diff --git a/tools/include/nolibc/arch-arm.h b/tools/include/nolibc/arch-arm.h
index b88686fb19c4..b5b3456c75cb 100644
--- a/tools/include/nolibc/arch-arm.h
+++ b/tools/include/nolibc/arch-arm.h
@@ -196,11 +196,6 @@ void __attribute__((weak, noreturn)) __nolibc_entrypoint __nolibc_no_stack_prote
}
#endif /* NOLIBC_NO_RUNTIME */
-static __attribute__((unused))
-int _sys_ftruncate64(int fd, uint32_t length0, uint32_t length1)
-{
- return __nolibc_syscall4(__NR_ftruncate64, fd, 0, length0, length1);
-}
-#define _sys_ftruncate64 _sys_ftruncate64
+#define __NOLIBC_PAD_64BIT_SYSCALL_ARGUMENT_PAIR
#endif /* _NOLIBC_ARCH_ARM_H */
diff --git a/tools/include/nolibc/arch-hexagon.h b/tools/include/nolibc/arch-hexagon.h
new file mode 100644
index 000000000000..68f73529a6dd
--- /dev/null
+++ b/tools/include/nolibc/arch-hexagon.h
@@ -0,0 +1,159 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * hexagon specific definitions for NOLIBC
+ * Copyright (C) 2026 Thomas Weißschuh <linux@weissschuh.net>
+ */
+
+#ifndef _NOLIBC_ARCH_HEXAGON_H
+#define _NOLIBC_ARCH_HEXAGON_H
+
+#include <linux/unistd.h>
+
+#include "compiler.h"
+#include "crt.h"
+
+/*
+ * Syscalls for hexagon:
+ * - syscall number is passed in r6
+ * - arguments are in r0, r1, r2, r3, r4, r5
+ * - the system call is performed by calling trap0(#1)
+ * - syscall return value is in r0
+ */
+
+#define _NOLIBC_SYSCALL_CLOBBERLIST "memory"
+
+#define __nolibc_syscall0(num) \
+({ \
+ register long _num __asm__ ("r6") = (num); \
+ register long _arg1 __asm__ ("r0"); \
+ \
+ __asm__ volatile ( \
+ "trap0(#1)\n" \
+ : "=r"(_arg1) \
+ : "r"(_num) \
+ : _NOLIBC_SYSCALL_CLOBBERLIST \
+ ); \
+ _arg1; \
+})
+
+#define __nolibc_syscall1(num, arg1) \
+({ \
+ register long _num __asm__ ("r6") = (num); \
+ register long _arg1 __asm__ ("r0") = (long)(arg1); \
+ \
+ __asm__ volatile ( \
+ "trap0(#1)\n" \
+ : "+r"(_arg1) \
+ : "r"(_num) \
+ : _NOLIBC_SYSCALL_CLOBBERLIST \
+ ); \
+ _arg1; \
+})
+
+#define __nolibc_syscall2(num, arg1, arg2) \
+({ \
+ register long _num __asm__ ("r6") = (num); \
+ register long _arg1 __asm__ ("r0") = (long)(arg1); \
+ register long _arg2 __asm__ ("r1") = (long)(arg2); \
+ \
+ __asm__ volatile ( \
+ "trap0(#1)\n" \
+ : "+r"(_arg1) \
+ : "r"(_arg2), \
+ "r"(_num) \
+ : _NOLIBC_SYSCALL_CLOBBERLIST \
+ ); \
+ _arg1; \
+})
+
+#define __nolibc_syscall3(num, arg1, arg2, arg3) \
+({ \
+ register long _num __asm__ ("r6") = (num); \
+ register long _arg1 __asm__ ("r0") = (long)(arg1); \
+ register long _arg2 __asm__ ("r1") = (long)(arg2); \
+ register long _arg3 __asm__ ("r2") = (long)(arg3); \
+ \
+ __asm__ volatile ( \
+ "trap0(#1)\n" \
+ : "+r"(_arg1) \
+ : "r"(_arg2), "r"(_arg3), \
+ "r"(_num) \
+ : _NOLIBC_SYSCALL_CLOBBERLIST \
+ ); \
+ _arg1; \
+})
+
+#define __nolibc_syscall4(num, arg1, arg2, arg3, arg4) \
+({ \
+ register long _num __asm__ ("r6") = (num); \
+ register long _arg1 __asm__ ("r0") = (long)(arg1); \
+ register long _arg2 __asm__ ("r1") = (long)(arg2); \
+ register long _arg3 __asm__ ("r2") = (long)(arg3); \
+ register long _arg4 __asm__ ("r3") = (long)(arg4); \
+ \
+ __asm__ volatile ( \
+ "trap0(#1)\n" \
+ : "+r"(_arg1) \
+ : "r"(_arg2), "r"(_arg3), "r"(_arg4), \
+ "r"(_num) \
+ : _NOLIBC_SYSCALL_CLOBBERLIST \
+ ); \
+ _arg1; \
+})
+
+#define __nolibc_syscall5(num, arg1, arg2, arg3, arg4, arg5) \
+({ \
+ register long _num __asm__ ("r6") = (num); \
+ register long _arg1 __asm__ ("r0") = (long)(arg1); \
+ register long _arg2 __asm__ ("r1") = (long)(arg2); \
+ register long _arg3 __asm__ ("r2") = (long)(arg3); \
+ register long _arg4 __asm__ ("r3") = (long)(arg4); \
+ register long _arg5 __asm__ ("r4") = (long)(arg5); \
+ \
+ __asm__ volatile ( \
+ "trap0(#1)\n" \
+ : "+r"(_arg1) \
+ : "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), \
+ "r"(_num) \
+ : _NOLIBC_SYSCALL_CLOBBERLIST \
+ ); \
+ _arg1; \
+})
+
+#define __nolibc_syscall6(num, arg1, arg2, arg3, arg4, arg5, arg6) \
+({ \
+ register long _num __asm__ ("r6") = (num); \
+ register long _arg1 __asm__ ("r0") = (long)(arg1); \
+ register long _arg2 __asm__ ("r1") = (long)(arg2); \
+ register long _arg3 __asm__ ("r2") = (long)(arg3); \
+ register long _arg4 __asm__ ("r3") = (long)(arg4); \
+ register long _arg5 __asm__ ("r4") = (long)(arg5); \
+ register long _arg6 __asm__ ("r5") = (long)(arg6); \
+ \
+ __asm__ volatile ( \
+ "trap0(#1)\n" \
+ : "+r"(_arg1) \
+ : "r"(_arg2), "r"(_arg3), "r"(_arg4), "r"(_arg5), "r"(_arg6), \
+ "r"(_num) \
+ : _NOLIBC_SYSCALL_CLOBBERLIST \
+ ); \
+ _arg1; \
+})
+
+#ifndef NOLIBC_NO_RUNTIME
+/* startup code */
+void __attribute__((weak, noreturn))
+__nolibc_entrypoint __nolibc_no_stack_protector
+_start(void)
+{
+ __asm__ volatile (
+ "r0 = sp\n" /* save stack pointer to r0, as arg1 of _start_c */
+ "call _start_c\n" /* transfer to c runtime */
+ );
+ __nolibc_entrypoint_epilogue();
+}
+#endif /* NOLIBC_NO_RUNTIME */
+
+#define __NOLIBC_PAD_64BIT_SYSCALL_ARGUMENT_PAIR
+
+#endif /* _NOLIBC_ARCH_HEXAGON_H */
diff --git a/tools/include/nolibc/arch-mips.h b/tools/include/nolibc/arch-mips.h
index 26ad413cec62..c0da0cc309ce 100644
--- a/tools/include/nolibc/arch-mips.h
+++ b/tools/include/nolibc/arch-mips.h
@@ -72,6 +72,7 @@
#define _NOLIBC_SYSCALL_STACK_UNRESERVE
#define _NOLIBC_SYSCALL_REG register long long
+#define __NOLIBC_BITS_PER_SYSCALL_ARG 64
#endif /* _ABIO32 */
@@ -286,12 +287,7 @@ void __attribute__((weak, noreturn)) __nolibc_entrypoint __nolibc_no_stack_prote
#endif /* NOLIBC_NO_RUNTIME */
#if defined(_ABIO32)
-static __attribute__((unused))
-int _sys_ftruncate64(int fd, uint32_t length0, uint32_t length1)
-{
- return __nolibc_syscall4(__NR_ftruncate64, fd, 0, length0, length1);
-}
-#define _sys_ftruncate64 _sys_ftruncate64
+#define __NOLIBC_PAD_64BIT_SYSCALL_ARGUMENT_PAIR
#endif
#endif /* _NOLIBC_ARCH_MIPS_H */
diff --git a/tools/include/nolibc/arch-parisc.h b/tools/include/nolibc/arch-parisc.h
index 417043ecbc53..bf57ba16055c 100644
--- a/tools/include/nolibc/arch-parisc.h
+++ b/tools/include/nolibc/arch-parisc.h
@@ -7,9 +7,7 @@
#ifndef _NOLIBC_ARCH_PARISC_H
#define _NOLIBC_ARCH_PARISC_H
-#if defined(__LP64__)
-#error 64-bit not supported
-#endif
+#include <linux/unistd.h>
#include "compiler.h"
#include "crt.h"
@@ -167,9 +165,15 @@
void __attribute__((weak, noreturn)) __nolibc_entrypoint __nolibc_no_stack_protector _start(void)
{
__asm__ volatile (
+#ifdef __LP64__
+ ".import __gp\n" /* Set up the dp register */
+ "ldil L%__gp, %dp\n"
+ "ldo R%__gp(%dp), %dp\n"
+#else
".import $global$\n" /* Set up the dp register */
"ldil L%$global$, %dp\n"
- "ldo R%$global$(%r27), %dp\n"
+ "ldo R%$global$(%dp), %dp\n"
+#endif
"b _start_c\n" /* Call _start_c, the load below is executed first */
@@ -182,4 +186,20 @@ void __attribute__((weak, noreturn)) __nolibc_entrypoint __nolibc_no_stack_prote
}
#endif /* NOLIBC_NO_RUNTIME */
+#ifdef __LP64__
+/*
+ * This override is normally only meant for 32-bit architectures.
+ * But parisc 64-bit has __NR_ftruncate64, so this path is taken.
+ * Add an unused second argument to satisfy the calling convention.
+ */
+static __attribute__((unused))
+int _sys_ftruncate64(int fd, uint64_t length, uint64_t unused)
+{
+ (void)unused;
+
+ return __nolibc_syscall2(__NR_ftruncate64, fd, length);
+}
+#define _sys_ftruncate64 _sys_ftruncate64
+#endif
+
#endif /* _NOLIBC_ARCH_PARISC_H */
diff --git a/tools/include/nolibc/arch-powerpc.h b/tools/include/nolibc/arch-powerpc.h
index dbe2e5205aaa..a4711638cb66 100644
--- a/tools/include/nolibc/arch-powerpc.h
+++ b/tools/include/nolibc/arch-powerpc.h
@@ -222,12 +222,7 @@ void __attribute__((weak, noreturn)) __nolibc_entrypoint __nolibc_no_stack_prote
#endif /* NOLIBC_NO_RUNTIME */
#if !defined(__powerpc64__)
-static __attribute__((unused))
-int _sys_ftruncate64(int fd, uint32_t length0, uint32_t length1)
-{
- return __nolibc_syscall4(__NR_ftruncate64, fd, 0, length0, length1);
-}
-#define _sys_ftruncate64 _sys_ftruncate64
+#define __NOLIBC_PAD_64BIT_SYSCALL_ARGUMENT_PAIR
#endif
#endif /* _NOLIBC_ARCH_POWERPC_H */
diff --git a/tools/include/nolibc/arch-sh.h b/tools/include/nolibc/arch-sh.h
index a32378fd621f..996cfbe1bee3 100644
--- a/tools/include/nolibc/arch-sh.h
+++ b/tools/include/nolibc/arch-sh.h
@@ -10,6 +10,8 @@
#include "compiler.h"
#include "crt.h"
+#include <linux/unistd.h>
+
/*
* Syscalls for SuperH:
* - registers are 32bit wide
@@ -161,4 +163,20 @@ void __attribute__((weak, noreturn)) __nolibc_entrypoint __nolibc_no_stack_prote
}
#endif /* NOLIBC_NO_RUNTIME */
+static __attribute__((unused))
+ssize_t _sys_pread(int fd, void *buf, size_t count, off_t offset)
+{
+ return __nolibc_syscall6(__NR_pread64, fd, buf, count, 0,
+ __NOLIBC_LLARGPART(offset, 0), __NOLIBC_LLARGPART(offset, 1));
+}
+#define _sys_pread _sys_pread
+
+static __attribute__((unused))
+ssize_t _sys_pwrite(int fd, const void *buf, size_t count, off_t offset)
+{
+ return __nolibc_syscall6(__NR_pwrite64, fd, buf, count, 0,
+ __NOLIBC_LLARGPART(offset, 0), __NOLIBC_LLARGPART(offset, 1));
+}
+#define _sys_pwrite _sys_pwrite
+
#endif /* _NOLIBC_ARCH_SH_H */
diff --git a/tools/include/nolibc/arch-x86.h b/tools/include/nolibc/arch-x86.h
index 577e9b682eb3..0638f9316749 100644
--- a/tools/include/nolibc/arch-x86.h
+++ b/tools/include/nolibc/arch-x86.h
@@ -386,5 +386,7 @@ __asm__ (
".popsection\n"
);
+#define __NOLIBC_BITS_PER_SYSCALL_ARG 64
+
#endif /* !defined(__x86_64__) */
#endif /* _NOLIBC_ARCH_X86_H */
diff --git a/tools/include/nolibc/arch.h b/tools/include/nolibc/arch.h
index 06cc2dbe7a33..79ed5900f2a7 100644
--- a/tools/include/nolibc/arch.h
+++ b/tools/include/nolibc/arch.h
@@ -34,8 +34,15 @@
#include "arch-parisc.h"
#elif defined(__alpha__)
#include "arch-alpha.h"
+#elif defined(__hexagon__)
+#include "arch-hexagon.h"
#else
#error Unsupported Architecture
#endif
+
+#ifndef __NOLIBC_BITS_PER_SYSCALL_ARG
+#define __NOLIBC_BITS_PER_SYSCALL_ARG __BITS_PER_LONG
+#endif
+
#endif /* _NOLIBC_ARCH_H */
diff --git a/tools/include/nolibc/compiler.h b/tools/include/nolibc/compiler.h
index f2d7a81d0d7c..375c45ce81c8 100644
--- a/tools/include/nolibc/compiler.h
+++ b/tools/include/nolibc/compiler.h
@@ -90,4 +90,13 @@
# define __nolibc_no_sanitize_undefined
#endif
+/*
+ * Helper for 32-bit machines where a 64-bit syscall arg needs to be split into
+ * two 32-bit parts while making sure the order of the low/high parts are correct
+ * for the endianness:
+ * __NOLIBC_LLARGPART(x, 0), __NOLIBC_LLARGPART(x, 1)
+ */
+#define __NOLIBC_LLARGPART(_arg, _part) \
+ (((union { long long ll; long l[2]; }) { .ll = _arg }).l[_part])
+
#endif /* _NOLIBC_COMPILER_H */
diff --git a/tools/include/nolibc/dirent.h b/tools/include/nolibc/dirent.h
index 4e02ef25e72d..19857369de2a 100644
--- a/tools/include/nolibc/dirent.h
+++ b/tools/include/nolibc/dirent.h
@@ -30,10 +30,23 @@ typedef struct {
static __attribute__((unused))
DIR *fdopendir(int fd)
{
+ struct stat buf;
+ int ret;
+
if (fd < 0) {
SET_ERRNO(EBADF);
return NULL;
}
+
+ ret = fstat(fd, &buf);
+ if (ret < 0)
+ return NULL;
+
+ if (!S_ISDIR(buf.st_mode)) {
+ SET_ERRNO(ENOTDIR);
+ return NULL;
+ }
+
return (DIR *)(intptr_t)~fd;
}
@@ -42,10 +55,11 @@ DIR *opendir(const char *name)
{
int fd;
- fd = open(name, O_RDONLY);
+ fd = open(name, O_RDONLY | O_DIRECTORY);
if (fd == -1)
return NULL;
- return fdopendir(fd);
+
+ return (DIR *)(intptr_t)~fd;
}
static __attribute__((unused))
@@ -67,6 +81,7 @@ int readdir_r(DIR *dirp, struct dirent *entry, struct dirent **result)
struct linux_dirent64 *ldir = (void *)buf;
intptr_t i = (intptr_t)dirp;
int fd, ret;
+ off_t off;
if (i >= 0)
return EBADF;
@@ -86,9 +101,9 @@ int readdir_r(DIR *dirp, struct dirent *entry, struct dirent **result)
* readdir() can only return one entry at a time.
* Make sure the non-returned ones are not skipped.
*/
- ret = _sys_lseek(fd, ldir->d_off, SEEK_SET);
- if (ret < 0)
- return -ret;
+ off = _sys_lseek(fd, ldir->d_off, SEEK_SET);
+ if (off < 0)
+ return -off;
entry->d_ino = ldir->d_ino;
/* the destination should always be big enough */
diff --git a/tools/include/nolibc/err.h b/tools/include/nolibc/err.h
index e22ae87a7289..61978d537ed8 100644
--- a/tools/include/nolibc/err.h
+++ b/tools/include/nolibc/err.h
@@ -60,7 +60,7 @@ void verr(int eval, const char *fmt, va_list args)
static __attribute__((noreturn, unused))
void verrx(int eval, const char *fmt, va_list args)
{
- warnx(fmt, args);
+ vwarnx(fmt, args);
exit(eval);
}
diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h
index faa94f247281..352a207bbedc 100644
--- a/tools/include/nolibc/nolibc.h
+++ b/tools/include/nolibc/nolibc.h
@@ -106,6 +106,7 @@
#include "sys/reboot.h"
#include "sys/resource.h"
#include "sys/select.h"
+#include "sys/sendfile.h"
#include "sys/stat.h"
#include "sys/syscall.h"
#include "sys/sysmacros.h"
diff --git a/tools/include/nolibc/stdlib.h b/tools/include/nolibc/stdlib.h
index 1816c2368b68..1c5a914c0f23 100644
--- a/tools/include/nolibc/stdlib.h
+++ b/tools/include/nolibc/stdlib.h
@@ -130,9 +130,11 @@ void *malloc(size_t len)
{
struct nolibc_heap *heap;
- /* Always allocate memory with size multiple of 4096. */
- len = sizeof(*heap) + len;
- len = (len + 4095UL) & -4096UL;
+ if (__builtin_expect(__builtin_add_overflow(len, sizeof(*heap), &len), 0)) {
+ SET_ERRNO(ENOMEM);
+ return NULL;
+ }
+
heap = mmap(NULL, len, PROT_READ|PROT_WRITE, MAP_ANONYMOUS|MAP_PRIVATE,
-1, 0);
if (__builtin_expect(heap == MAP_FAILED, 0))
@@ -143,7 +145,7 @@ void *malloc(size_t len)
}
static __attribute__((unused))
-void *calloc(size_t size, size_t nmemb)
+void *calloc(size_t nmemb, size_t size)
{
size_t x;
@@ -230,7 +232,7 @@ int _nolibc_u64toa_base(uint64_t in, char *buffer, unsigned int base, uint64_t r
/* Generate least significant digit first */
do {
-#if defined(__SIZEOF_INT128__) && !defined(__mips__) && !defined(__sparc__)
+#if defined(__SIZEOF_INT128__) && !defined(__mips__) && !defined(__sparc__) && !defined(__hppa__)
q = ((unsigned __int128)in * recip) >> 64;
#else
uint64_t p = (uint32_t)in * (recip >> 32);
diff --git a/tools/include/nolibc/sys.h b/tools/include/nolibc/sys.h
index 548f94d96ed2..b63fa6c618c5 100644
--- a/tools/include/nolibc/sys.h
+++ b/tools/include/nolibc/sys.h
@@ -71,16 +71,6 @@ static __inline__ int __nolibc_enosys(const char *syscall, ...)
#endif
-/*
- * Helper for 32-bit machines where a 64-bit syscall arg needs to be split into
- * two 32-bit parts while making sure the order of the low/high parts are correct
- * for the endianness:
- * __NOLIBC_LLARGPART(x, 0), __NOLIBC_LLARGPART(x, 1)
- */
-#define __NOLIBC_LLARGPART(_arg, _part) \
- (((union { long long ll; long l[2]; }) { .ll = _arg }).l[_part])
-
-
/* Functions in this file only describe syscalls. They're declared static so
* that the compiler usually decides to inline them while still being allowed
* to pass a pointer to one of their instances. Each syscall exists in two
@@ -756,6 +746,56 @@ int pivot_root(const char *new, const char *old)
/*
+ * ssize_t pread(int fd, void *buf, size_t count, off_t offset);
+ * ssize_t pwrite(int fd, const void *buf, size_t count, off_t offset);
+ */
+
+#ifndef _sys_pread
+static __attribute__((unused))
+ssize_t _sys_pread(int fd, void *buf, size_t count, off_t offset)
+{
+#if __NOLIBC_BITS_PER_SYSCALL_ARG == 64
+ return __nolibc_syscall4(__NR_pread64, fd, buf, count, offset);
+#elif defined(__NOLIBC_PAD_64BIT_SYSCALL_ARGUMENT_PAIR)
+ return __nolibc_syscall6(__NR_pread64, fd, buf, count, 0,
+ __NOLIBC_LLARGPART(offset, 0), __NOLIBC_LLARGPART(offset, 1));
+#else
+ return __nolibc_syscall5(__NR_pread64, fd, buf, count,
+ __NOLIBC_LLARGPART(offset, 0), __NOLIBC_LLARGPART(offset, 1));
+#endif
+}
+#endif /* _sys_pread */
+
+static __attribute__((unused))
+ssize_t pread(int fd, void *buf, size_t count, off_t offset)
+{
+ return __sysret(_sys_pread(fd, buf, count, offset));
+}
+
+#ifndef _sys_pwrite
+static __attribute__((unused))
+ssize_t _sys_pwrite(int fd, const void *buf, size_t count, off_t offset)
+{
+#if __NOLIBC_BITS_PER_SYSCALL_ARG == 64
+ return __nolibc_syscall4(__NR_pwrite64, fd, buf, count, offset);
+#elif defined(__NOLIBC_PAD_64BIT_SYSCALL_ARGUMENT_PAIR)
+ return __nolibc_syscall6(__NR_pwrite64, fd, buf, count, 0,
+ __NOLIBC_LLARGPART(offset, 0), __NOLIBC_LLARGPART(offset, 1));
+#else
+ return __nolibc_syscall5(__NR_pwrite64, fd, buf, count,
+ __NOLIBC_LLARGPART(offset, 0), __NOLIBC_LLARGPART(offset, 1));
+#endif
+}
+#endif /* _sys_pwrite */
+
+static __attribute__((unused))
+ssize_t pwrite(int fd, const void *buf, size_t count, off_t offset)
+{
+ return __sysret(_sys_pwrite(fd, buf, count, offset));
+}
+
+
+/*
* ssize_t read(int fd, void *buf, size_t count);
*/
diff --git a/tools/include/nolibc/sys/select.h b/tools/include/nolibc/sys/select.h
index 6d65d9ef3d6a..f299c79939f5 100644
--- a/tools/include/nolibc/sys/select.h
+++ b/tools/include/nolibc/sys/select.h
@@ -26,7 +26,7 @@ typedef struct {
int __fd = (fd); \
if (__fd >= 0) \
__set->fds[__fd / FD_SETIDXMASK] &= \
- ~(1U << (__fd & FD_SETBITMASK)); \
+ ~(1UL << (__fd & FD_SETBITMASK)); \
} while (0)
#define FD_SET(fd, set) do { \
@@ -34,7 +34,7 @@ typedef struct {
int __fd = (fd); \
if (__fd >= 0) \
__set->fds[__fd / FD_SETIDXMASK] |= \
- 1 << (__fd & FD_SETBITMASK); \
+ 1UL << (__fd & FD_SETBITMASK); \
} while (0)
#define FD_ISSET(fd, set) ({ \
@@ -43,7 +43,7 @@ typedef struct {
int __r = 0; \
if (__fd >= 0) \
__r = !!(__set->fds[__fd / FD_SETIDXMASK] & \
-1U << (__fd & FD_SETBITMASK)); \
+1UL << (__fd & FD_SETBITMASK)); \
__r; \
})
diff --git a/tools/include/nolibc/sys/sendfile.h b/tools/include/nolibc/sys/sendfile.h
new file mode 100644
index 000000000000..ac7d85847718
--- /dev/null
+++ b/tools/include/nolibc/sys/sendfile.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: LGPL-2.1 OR MIT */
+/*
+ * sendfile for NOLIBC
+ * Copyright (C) 2026 Daniel Palmer <daniel@thingy.jp>
+ */
+
+/* make sure to include all global symbols */
+#include "../nolibc.h"
+
+#ifndef _NOLIBC_SYS_SENDFILE_H
+#define _NOLIBC_SYS_SENDFILE_H
+
+#include "../sys.h"
+#include <linux/unistd.h>
+
+/*
+ * ssize_t sendfile(int out_fd, int in_fd, off_t *offset, size_t count);
+ */
+
+static __attribute__((unused))
+ssize_t _sys_sendfile(int out_fd, int in_fd, off_t *offset, size_t count)
+{
+ __nolibc_static_assert(sizeof(*offset) == sizeof(__kernel_loff_t));
+
+#ifdef __NR_sendfile64
+ /* 32-bit applications use sendfile64 so offset is treated as a __kernel_loff_t */
+ return __nolibc_syscall4(__NR_sendfile64, out_fd, in_fd, offset, count);
+#else
+ __nolibc_static_assert(sizeof(*offset) == sizeof(__kernel_off_t));
+
+ return __nolibc_syscall4(__NR_sendfile, out_fd, in_fd, offset, count);
+#endif
+}
+
+static __attribute__((unused))
+ssize_t sendfile(int out_fd, int in_fd, off_t *offset, size_t count)
+{
+ return __sysret(_sys_sendfile(out_fd, in_fd, offset, count));
+}
+
+#endif /* _NOLIBC_SYS_SENDFILE_H */
diff --git a/tools/include/nolibc/types.h b/tools/include/nolibc/types.h
index 8f3cb18df7f1..4373bd8a5b5f 100644
--- a/tools/include/nolibc/types.h
+++ b/tools/include/nolibc/types.h
@@ -119,7 +119,7 @@ struct timeval {
#define WEXITSTATUS(status) (((status) & 0xff00) >> 8)
#define WIFEXITED(status) (((status) & 0x7f) == 0)
#define WTERMSIG(status) ((status) & 0x7f)
-#define WIFSIGNALED(status) ((status) - 1 < 0xff)
+#define WIFSIGNALED(status) ((status) - 1U < 0xff)
/* standard exit() codes */
#define EXIT_SUCCESS 0
diff --git a/tools/include/nolibc/unistd.h b/tools/include/nolibc/unistd.h
index a264a20da13d..939d4e05a55d 100644
--- a/tools/include/nolibc/unistd.h
+++ b/tools/include/nolibc/unistd.h
@@ -52,7 +52,11 @@ int access(const char *path, int amode)
static __attribute__((unused))
int _sys_ftruncate64(int fd, uint32_t length0, uint32_t length1)
{
+#if defined(__NOLIBC_PAD_64BIT_SYSCALL_ARGUMENT_PAIR)
+ return __nolibc_syscall4(__NR_ftruncate64, fd, 0, length0, length1);
+#else
return __nolibc_syscall3(__NR_ftruncate64, fd, length0, length1);
+#endif
}
#define _sys_ftruncate64 _sys_ftruncate64
#endif
generated by cgit v1.2.3 (git 2.0.4) at 2026-10-31 23:21:52 +0000