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-rw-r--r--libc/sysdeps/linux/arc/asm.h91
-rw-r--r--libc/sysdeps/linux/arc/bits/syscalls.h4
-rw-r--r--libc/sysdeps/linux/arc/crt1.S4
-rw-r--r--libc/sysdeps/linux/common/bits/mman-linux.h1
-rwxr-xr-x[-rw-r--r--]libc/sysdeps/linux/common/bits/syscalls-common.h5
-rw-r--r--libc/sysdeps/linux/common/futimesat.c26
-rwxr-xr-x[-rw-r--r--]libc/sysdeps/linux/common/gettimeofday.c25
-rw-r--r--libc/sysdeps/linux/mips/crt1.S23
-rw-r--r--libc/sysdeps/linux/powerpc/crt1.S19
l---------libc/sysdeps/linux/riscv321
-rw-r--r--libc/sysdeps/linux/riscv64/bits/wordsize.h3
-rw-r--r--libc/sysdeps/linux/riscv64/setjmp.S2
-rw-r--r--libc/sysdeps/linux/riscv64/sys/asm.h6
-rw-r--r--libc/sysdeps/linux/xtensa/crt1.S27
14 files changed, 228 insertions, 9 deletions
diff --git a/libc/sysdeps/linux/arc/asm.h b/libc/sysdeps/linux/arc/asm.h
new file mode 100644
index 000000000..f83075ea1
--- /dev/null
+++ b/libc/sysdeps/linux/arc/asm.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2022, Synopsys, Inc. (www.synopsys.com)
+ *
+ * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
+ */
+
+#ifndef _ARC_ASM_H
+#define _ARC_ASM_H
+
+/*
+ * Some 16-bit instructions were excluded from the ARCv3 ISA
+ * the following macros are introduced to handle these changes in one place.
+ * This will allow not to change existing ARCv2 code and use 16-bit versions
+ * of instructions for ARCv2 and replace them with 32-bit vesrions for ARCv3
+ */
+
+#if defined (__ARC64_ARCH32__)
+
+.macro PUSHR reg
+ push \reg
+.endm
+
+.macro PUSHR_S reg
+ push \reg
+.endm
+
+.macro POPR reg
+ pop \reg
+.endm
+
+.macro POPR_S reg
+ pop \reg
+.endm
+
+.macro SUBR_S dst,src1,src2
+ sub \dst, \src1, \src2
+.endm
+
+.macro ADDR_S dst,src1,src2
+ add \dst, \src1, \src2
+.endm
+
+.macro ASRR_S dst,src1,src2
+ asr \dst, \src1, \src2
+.endm
+
+.macro ASLR_S dst,src1,src2
+ asl \dst, \src1, \src2
+.endm
+
+#elif defined (__ARC64_ARCH64__)
+
+# error ARCv3 64-bit is not supported by uClibc-ng
+
+#else /* ARCHS || ARC700 */
+
+.macro PUSHR reg
+ push \reg
+.endm
+
+.macro PUSHR_S reg
+ push_s \reg
+.endm
+
+.macro POPR reg
+ pop \reg
+.endm
+
+.macro POPR_S reg
+ pop_s \reg
+.endm
+
+.macro SUBR_S dst,src1,src2
+ sub_s \dst, \src1, \src2
+.endm
+
+.macro ADDR_S dst,src1,src2
+ add_s \dst, \src1, \src2
+.endm
+
+.macro ASRR_S dst,src1,src2
+ asr_s \dst, \src1, \src2
+.endm
+
+.macro ASLR_S dst,src1,src2
+ asl_s \dst, \src1, \src2
+.endm
+
+#endif
+
+#endif /* _ARC_ASM_H */
diff --git a/libc/sysdeps/linux/arc/bits/syscalls.h b/libc/sysdeps/linux/arc/bits/syscalls.h
index c858d788b..000b6b631 100644
--- a/libc/sysdeps/linux/arc/bits/syscalls.h
+++ b/libc/sysdeps/linux/arc/bits/syscalls.h
@@ -100,7 +100,7 @@ extern long __syscall_error (int);
#ifdef __A7__
#define ARC_TRAP_INSN "trap0 \n\t"
-#elif defined(__HS__)
+#else
#define ARC_TRAP_INSN "trap_s 0 \n\t"
#endif
@@ -182,7 +182,7 @@ extern long __syscall_error (int);
#ifdef __A7__
#define ARC_TRAP_INSN trap0
-#elif defined(__HS__)
+#else
#define ARC_TRAP_INSN trap_s 0
#endif
diff --git a/libc/sysdeps/linux/arc/crt1.S b/libc/sysdeps/linux/arc/crt1.S
index 70a06e058..ff36d252e 100644
--- a/libc/sysdeps/linux/arc/crt1.S
+++ b/libc/sysdeps/linux/arc/crt1.S
@@ -40,7 +40,9 @@ __start:
ld_s r1, [sp] ; argc
mov_s r5, r0 ; rltd_fini
- add_s r2, sp, 4 ; argv
+ /* Use the universal 32-bit add instruction as 16-bit add_s was excluded from
+ ARCv3 ISA */
+ add r2, sp, 4 ; argv
#ifdef L_Scrt1
ld r0, [pcl, @main@gotpc]
ld r3, [pcl, @_init@gotpc]
diff --git a/libc/sysdeps/linux/common/bits/mman-linux.h b/libc/sysdeps/linux/common/bits/mman-linux.h
index 6ca08415a..4947ddd89 100644
--- a/libc/sysdeps/linux/common/bits/mman-linux.h
+++ b/libc/sysdeps/linux/common/bits/mman-linux.h
@@ -46,6 +46,7 @@
/* Other flags. */
#define MAP_FIXED 0x10 /* Interpret addr exactly. */
+# define MAP_FIXED_NOREPLACE 0x100000 /* Used to solve problem with MAP_FIXED */
#ifdef __USE_MISC
# define MAP_FILE 0
# ifdef __MAP_ANONYMOUS
diff --git a/libc/sysdeps/linux/common/bits/syscalls-common.h b/libc/sysdeps/linux/common/bits/syscalls-common.h
index 3665345a6..adae45aac 100644..100755
--- a/libc/sysdeps/linux/common/bits/syscalls-common.h
+++ b/libc/sysdeps/linux/common/bits/syscalls-common.h
@@ -104,11 +104,16 @@ type name(C_DECL_ARGS_##nargs(args)) { \
return (type)INLINE_SYSCALL_NOERR(name, nargs, C_ARGS_##nargs(args)); \
}
+#define SYSCALL_FUNC_BODY(nargs, type, name, args...) \
+ return (type)INLINE_SYSCALL(name, nargs, C_ARGS_##nargs(args));
+
+
#define _syscall0(args...) SYSCALL_FUNC(0, args)
#define _syscall_noerr0(args...) SYSCALL_NOERR_FUNC(0, args)
#define _syscall1(args...) SYSCALL_FUNC(1, args)
#define _syscall_noerr1(args...) SYSCALL_NOERR_FUNC(1, args)
#define _syscall2(args...) SYSCALL_FUNC(2, args)
+#define _syscall2_body(args...) SYSCALL_FUNC_BODY(2, args)
#define _syscall3(args...) SYSCALL_FUNC(3, args)
#define _syscall4(args...) SYSCALL_FUNC(4, args)
#define _syscall5(args...) SYSCALL_FUNC(5, args)
diff --git a/libc/sysdeps/linux/common/futimesat.c b/libc/sysdeps/linux/common/futimesat.c
index bd73eae7e..fd19fea7c 100644
--- a/libc/sysdeps/linux/common/futimesat.c
+++ b/libc/sysdeps/linux/common/futimesat.c
@@ -11,6 +11,28 @@
#ifdef __NR_futimesat
_syscall3(int, futimesat, int, fd, const char *, file, const struct timeval *, tvp)
-#else
-/* should add emulation with futimes() and /proc/self/fd/ ... */
+#elif defined __NR_utimensat
+#include <errno.h>
+#define __need_NULL
+#include <stddef.h>
+
+int futimesat(int dirfd, const char *file, const struct timeval tvp[2])
+{
+ struct timespec ts[2];
+
+ if (tvp != NULL)
+ {
+ if (tvp[0].tv_usec < 0 || tvp[0].tv_usec >= 1000000
+ || tvp[1].tv_usec < 0 || tvp[1].tv_usec >= 1000000)
+ {
+ __set_errno(EINVAL);
+ return -1;
+ }
+
+ TIMEVAL_TO_TIMESPEC(&tvp[0], &ts[0]);
+ TIMEVAL_TO_TIMESPEC(&tvp[1], &ts[1]);
+ }
+
+ return utimensat(dirfd, file, tvp ? ts : NULL, 0);
+}
#endif
diff --git a/libc/sysdeps/linux/common/gettimeofday.c b/libc/sysdeps/linux/common/gettimeofday.c
index 1c62b3937..e5141088e 100644..100755
--- a/libc/sysdeps/linux/common/gettimeofday.c
+++ b/libc/sysdeps/linux/common/gettimeofday.c
@@ -9,5 +9,28 @@
#include <sys/syscall.h>
#include <sys/time.h>
-_syscall2(int, gettimeofday, struct timeval *, tv, __timezone_ptr_t, tz)
+#include "ldso.h"
+
+
+
+#ifdef __VDSO_SUPPORT__
+typedef int (*gettimeofday_func)(struct timeval * tv, __timezone_ptr_t tz);
+#endif
+
+int gettimeofday(struct timeval * tv, __timezone_ptr_t tz) {
+
+ #ifdef __VDSO_SUPPORT__
+ if ( _dl__vdso_gettimeofday != 0 ){
+ gettimeofday_func func= _dl__vdso_gettimeofday;
+ return func( tv, tz );
+
+ }else{
+ _syscall2_body(int, gettimeofday, struct timeval *, tv, __timezone_ptr_t, tz)
+ }
+ #else
+ _syscall2_body(int, gettimeofday, struct timeval *, tv, __timezone_ptr_t, tz)
+ #endif
+}
+
+
libc_hidden_def(gettimeofday)
diff --git a/libc/sysdeps/linux/mips/crt1.S b/libc/sysdeps/linux/mips/crt1.S
index 083615515..7c4db447c 100644
--- a/libc/sysdeps/linux/mips/crt1.S
+++ b/libc/sysdeps/linux/mips/crt1.S
@@ -78,6 +78,10 @@
.weak _init
.weak _fini
#endif
+#ifdef L_rcrt1
+ .type reloc_static_pie,@function
+ .hidden .L0
+#endif
.type main,@function
.type __uClibc_main,@function
.ent __start
@@ -90,6 +94,25 @@ __start:
PTR_LA $28, _gp /* Setup GP correctly if we're non-PIC. */
move $31, $0
#endif
+#ifdef L_rcrt1
+ PTR_LA $4, _DYNAMIC /* Place _DYNAMIC into the GOT */
+ REG_S $4, -0x7ff0($28) /* offset to GOT stolen from dl-startup */
+ jal .L0 /* Get the current $pc address */
+.L0:
+ PTR_SUBU $4, $31, $25 /* Calculate load addr */
+ move $31, $0 /* Clear ra */
+ and $29, -2 * SZREG /* Ensure stack is aligned */
+ PTR_ADDIU $29, (-2 * SZREG) /* Allocate 2 register spaces on stack */
+ REG_S $2, SZREG($29) /* Store atexit in case it exists */
+ PTR_LA $5, reloc_static_pie /* function calls before relocation
+ don't work unless we set $t9 manually */
+ PTR_ADDU $25, $4, $5 /* store reloc_static_pie in $t9 */
+ jalr $25 /* call reloc_static_pie */
+ nop /* delay slot, just in case */
+ REG_L $2, SZREG($29) /* cleanup stack */
+ PTR_ADDIU $29, $29, (2 * SZREG)
+
+#endif
PTR_LA $4, main /* main */
PTR_L $5, 0($29) /* argc */
diff --git a/libc/sysdeps/linux/powerpc/crt1.S b/libc/sysdeps/linux/powerpc/crt1.S
index 3f5d056c0..3ac32636c 100644
--- a/libc/sysdeps/linux/powerpc/crt1.S
+++ b/libc/sysdeps/linux/powerpc/crt1.S
@@ -41,6 +41,9 @@
.weak _init
.weak _fini
#endif
+#ifdef L_rcrt1
+ .type reloc_static_pie,%function
+#endif
.type main,%function
.type __uClibc_main,%function
@@ -61,6 +64,22 @@ _start:
# ifdef PPC_HAS_SECUREPLT
mr 30,31
# endif
+#ifdef L_rcrt1
+ stwu r3, -4(r1) /* Save r3 */
+ stwu r9, -16(r1) /* Save r9 */
+ bcl 20,31,2f /* Jump to label 2 */
+2: mflr r3 /* Load lr into r3 */
+ addis r3, r3, _DYNAMIC-2b@ha /* Add high half of _DYNAMIC to r3 */
+ addi r3,r3,_DYNAMIC-2b@l /* Add low half of _DYNAMIC */
+ lwz r4, 0(r31) /* load _DYNAMIC from the GOT */
+ subf r3, r4, r3 /* sub _DYNAMIC@got and it's actual address */
+ bl reloc_static_pie /* Call reloc_static_pie */
+ lwzu r9, 0(r1) /* restore r9 */
+ addi r1, r1, 16 /* update stack pointer */
+ lwzu r3, 0(r1) /* restore r3 */
+ addi r1, r1, 4 /* update stack pointer */
+ li r5, 0 /* zero r5 */
+#endif
#endif
/* Set up the small data pointer in r13. */
#ifdef __PIC__
diff --git a/libc/sysdeps/linux/riscv32 b/libc/sysdeps/linux/riscv32
new file mode 120000
index 000000000..11677ef05
--- /dev/null
+++ b/libc/sysdeps/linux/riscv32
@@ -0,0 +1 @@
+riscv64 \ No newline at end of file
diff --git a/libc/sysdeps/linux/riscv64/bits/wordsize.h b/libc/sysdeps/linux/riscv64/bits/wordsize.h
index 67a16ba62..1fc649aad 100644
--- a/libc/sysdeps/linux/riscv64/bits/wordsize.h
+++ b/libc/sysdeps/linux/riscv64/bits/wordsize.h
@@ -25,5 +25,6 @@
#if __riscv_xlen == 64
# define __WORDSIZE_TIME64_COMPAT32 1
#else
-# error "rv32i-based targets are not supported"
+# define __WORDSIZE_TIME64_COMPAT32 1
+// # warning "rv32i-based targets are experimental"
#endif
diff --git a/libc/sysdeps/linux/riscv64/setjmp.S b/libc/sysdeps/linux/riscv64/setjmp.S
index 4cdb8e9c3..100a0bd78 100644
--- a/libc/sysdeps/linux/riscv64/setjmp.S
+++ b/libc/sysdeps/linux/riscv64/setjmp.S
@@ -20,7 +20,7 @@
ENTRY (_setjmp)
li a1, 0
- j __sigsetjmp
+ j HIDDEN_JUMPTARGET (__sigsetjmp)
END (_setjmp)
ENTRY (setjmp)
li a1, 1
diff --git a/libc/sysdeps/linux/riscv64/sys/asm.h b/libc/sysdeps/linux/riscv64/sys/asm.h
index ddb84b683..3c94c9a70 100644
--- a/libc/sysdeps/linux/riscv64/sys/asm.h
+++ b/libc/sysdeps/linux/riscv64/sys/asm.h
@@ -26,7 +26,11 @@
# define REG_S sd
# define REG_L ld
#elif __riscv_xlen == 32
-# error "rv32i-based targets are not supported"
+# define PTRLOG 2
+# define SZREG 4
+# define REG_S sw
+# define REG_L lw
+// # warning "rv32i-based targets are experimental"
#else
# error __riscv_xlen must equal 32 or 64
#endif
diff --git a/libc/sysdeps/linux/xtensa/crt1.S b/libc/sysdeps/linux/xtensa/crt1.S
index efbe264c0..3fa14ae58 100644
--- a/libc/sysdeps/linux/xtensa/crt1.S
+++ b/libc/sysdeps/linux/xtensa/crt1.S
@@ -76,9 +76,26 @@
.global _start
.type _start, @function
_start:
+#ifdef L_rcrt1
+ .begin no-transform
+ call0 1f
+.Lret_addr:
+ .end no-transform
+ .align 4
+1:
+#endif
#if defined(__XTENSA_WINDOWED_ABI__)
+#ifdef L_rcrt1
+ movi a6, .Lret_addr
+ sub a6, a0, a6
+ movi a0, 0
+ movi a4, reloc_static_pie
+ add a4, a4, a6
+ callx4 a4
+#else
/* Clear a0 to obviously mark the outermost frame. */
movi a0, 0
+#endif
/* Load up the user's main function. */
movi a6, main
@@ -106,8 +123,18 @@ _start:
movi a4, __uClibc_main
callx4 a4
#elif defined(__XTENSA_CALL0_ABI__)
+#ifdef L_rcrt1
+ mov a12, a2
+ movi a2, .Lret_addr
+ sub a2, a0, a2
+ movi a0, reloc_static_pie
+ add a0, a0, a2
+ callx0 a0
+ mov a7, a12
+#else
/* Setup the shared library termination function. */
mov a7, a2
+#endif
/* Load up the user's main function. */
movi a2, main
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-06 09:05:22 +0000