mirror of
https://github.com/DragonOS-Community/DragonOS.git
synced 2025-06-18 08:06:32 +00:00
houmkh
GitHub
26
user/apps/test_fstat/Makefile
Normal file
26
user/apps/test_fstat/Makefile
Normal file
@ -0,0 +1,26 @@
|
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CC=$(DragonOS_GCC)/x86_64-elf-gcc
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LD=ld
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OBJCOPY=objcopy
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# 修改这里，把它改为你的relibc的sysroot路径
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RELIBC_OPT=$(DADK_BUILD_CACHE_DIR_RELIBC_0_1_0)
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CFLAGS=-I $(RELIBC_OPT)/include -D__dragonos__
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tmp_output_dir=$(ROOT_PATH)/bin/tmp/user
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output_dir=$(DADK_BUILD_CACHE_DIR_TEST_FSTAT_0_1_0)
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LIBC_OBJS:=$(shell find $(RELIBC_OPT)/lib -name "*.o" | sort )
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LIBC_OBJS+=$(RELIBC_OPT)/lib/libc.a
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all: main.o
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mkdir -p $(tmp_output_dir)
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$(LD) -b elf64-x86-64 -z muldefs -o $(tmp_output_dir)/test_fstat $(shell find . -name "*.o") $(LIBC_OBJS) -T link.lds
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$(OBJCOPY) -I elf64-x86-64 -R ".eh_frame" -R ".comment" -O elf64-x86-64 $(tmp_output_dir)/test_fstat $(output_dir)/test_fstat.elf
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mv $(output_dir)/test_fstat.elf $(output_dir)/test_fstat
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main.o: main.c
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$(CC) $(CFLAGS) -c main.c -o main.o
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clean:
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rm -f *.o
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239
user/apps/test_fstat/link.lds
Normal file
239
user/apps/test_fstat/link.lds
Normal file
@ -0,0 +1,239 @@
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/* Script for -z combreloc */
|
||||
/* Copyright (C) 2014-2020 Free Software Foundation, Inc.
|
||||
Copying and distribution of this script, with or without modification,
|
||||
are permitted in any medium without royalty provided the copyright
|
||||
notice and this notice are preserved. */
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OUTPUT_FORMAT("elf64-x86-64", "elf64-x86-64",
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"elf64-x86-64")
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OUTPUT_ARCH(i386:x86-64)
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ENTRY(_start)
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||||
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||||
SECTIONS
|
||||
{
|
||||
/* Read-only sections, merged into text segment: */
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||||
PROVIDE (__executable_start = SEGMENT_START("text-segment", 0x400000)); . = SEGMENT_START("text-segment", 0x20000000) + SIZEOF_HEADERS;
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.interp : { *(.interp) }
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||||
.note.gnu.build-id : { *(.note.gnu.build-id) }
|
||||
.hash : { *(.hash) }
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||||
.gnu.hash : { *(.gnu.hash) }
|
||||
.dynsym : { *(.dynsym) }
|
||||
.dynstr : { *(.dynstr) }
|
||||
.gnu.version : { *(.gnu.version) }
|
||||
.gnu.version_d : { *(.gnu.version_d) }
|
||||
.gnu.version_r : { *(.gnu.version_r) }
|
||||
.rela.dyn :
|
||||
{
|
||||
*(.rela.init)
|
||||
*(.rela.text .rela.text.* .rela.gnu.linkonce.t.*)
|
||||
*(.rela.fini)
|
||||
*(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*)
|
||||
*(.rela.data .rela.data.* .rela.gnu.linkonce.d.*)
|
||||
*(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*)
|
||||
*(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*)
|
||||
*(.rela.ctors)
|
||||
*(.rela.dtors)
|
||||
*(.rela.got)
|
||||
*(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*)
|
||||
*(.rela.ldata .rela.ldata.* .rela.gnu.linkonce.l.*)
|
||||
*(.rela.lbss .rela.lbss.* .rela.gnu.linkonce.lb.*)
|
||||
*(.rela.lrodata .rela.lrodata.* .rela.gnu.linkonce.lr.*)
|
||||
*(.rela.ifunc)
|
||||
}
|
||||
.rela.plt :
|
||||
{
|
||||
*(.rela.plt)
|
||||
PROVIDE_HIDDEN (__rela_iplt_start = .);
|
||||
*(.rela.iplt)
|
||||
PROVIDE_HIDDEN (__rela_iplt_end = .);
|
||||
}
|
||||
. = ALIGN(CONSTANT (MAXPAGESIZE));
|
||||
.init :
|
||||
{
|
||||
KEEP (*(SORT_NONE(.init)))
|
||||
}
|
||||
.plt : { *(.plt) *(.iplt) }
|
||||
.plt.got : { *(.plt.got) }
|
||||
.plt.sec : { *(.plt.sec) }
|
||||
.text :
|
||||
{
|
||||
*(.text.unlikely .text.*_unlikely .text.unlikely.*)
|
||||
*(.text.exit .text.exit.*)
|
||||
*(.text.startup .text.startup.*)
|
||||
*(.text.hot .text.hot.*)
|
||||
*(.text .stub .text.* .gnu.linkonce.t.*)
|
||||
/* .gnu.warning sections are handled specially by elf.em. */
|
||||
*(.gnu.warning)
|
||||
}
|
||||
.fini :
|
||||
{
|
||||
KEEP (*(SORT_NONE(.fini)))
|
||||
}
|
||||
PROVIDE (__etext = .);
|
||||
PROVIDE (_etext = .);
|
||||
PROVIDE (etext = .);
|
||||
. = ALIGN(CONSTANT (MAXPAGESIZE));
|
||||
/* Adjust the address for the rodata segment. We want to adjust up to
|
||||
the same address within the page on the next page up. */
|
||||
. = SEGMENT_START("rodata-segment", ALIGN(CONSTANT (MAXPAGESIZE)) + (. & (CONSTANT (MAXPAGESIZE) - 1)));
|
||||
.rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
|
||||
.rodata1 : { *(.rodata1) }
|
||||
.eh_frame_hdr : { *(.eh_frame_hdr) *(.eh_frame_entry .eh_frame_entry.*) }
|
||||
.eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) *(.eh_frame.*) }
|
||||
.gcc_except_table : ONLY_IF_RO { *(.gcc_except_table .gcc_except_table.*) }
|
||||
.gnu_extab : ONLY_IF_RO { *(.gnu_extab*) }
|
||||
/* These sections are generated by the Sun/Oracle C++ compiler. */
|
||||
.exception_ranges : ONLY_IF_RO { *(.exception_ranges*) }
|
||||
/* Adjust the address for the data segment. We want to adjust up to
|
||||
the same address within the page on the next page up. */
|
||||
. = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE));
|
||||
/* Exception handling */
|
||||
.eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) *(.eh_frame.*) }
|
||||
.gnu_extab : ONLY_IF_RW { *(.gnu_extab) }
|
||||
.gcc_except_table : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) }
|
||||
.exception_ranges : ONLY_IF_RW { *(.exception_ranges*) }
|
||||
/* Thread Local Storage sections */
|
||||
.tdata :
|
||||
{
|
||||
PROVIDE_HIDDEN (__tdata_start = .);
|
||||
*(.tdata .tdata.* .gnu.linkonce.td.*)
|
||||
}
|
||||
.tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) }
|
||||
.preinit_array :
|
||||
{
|
||||
PROVIDE_HIDDEN (__preinit_array_start = .);
|
||||
KEEP (*(.preinit_array))
|
||||
PROVIDE_HIDDEN (__preinit_array_end = .);
|
||||
}
|
||||
.init_array :
|
||||
{
|
||||
PROVIDE_HIDDEN (__init_array_start = .);
|
||||
KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))
|
||||
KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .ctors))
|
||||
PROVIDE_HIDDEN (__init_array_end = .);
|
||||
}
|
||||
.fini_array :
|
||||
{
|
||||
PROVIDE_HIDDEN (__fini_array_start = .);
|
||||
KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))
|
||||
KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o ) .dtors))
|
||||
PROVIDE_HIDDEN (__fini_array_end = .);
|
||||
}
|
||||
.ctors :
|
||||
{
|
||||
/* gcc uses crtbegin.o to find the start of
|
||||
the constructors, so we make sure it is
|
||||
first. Because this is a wildcard, it
|
||||
doesn't matter if the user does not
|
||||
actually link against crtbegin.o; the
|
||||
linker won't look for a file to match a
|
||||
wildcard. The wildcard also means that it
|
||||
doesn't matter which directory crtbegin.o
|
||||
is in. */
|
||||
KEEP (*crtbegin.o(.ctors))
|
||||
KEEP (*crtbegin?.o(.ctors))
|
||||
/* We don't want to include the .ctor section from
|
||||
the crtend.o file until after the sorted ctors.
|
||||
The .ctor section from the crtend file contains the
|
||||
end of ctors marker and it must be last */
|
||||
KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .ctors))
|
||||
KEEP (*(SORT(.ctors.*)))
|
||||
KEEP (*(.ctors))
|
||||
}
|
||||
.dtors :
|
||||
{
|
||||
KEEP (*crtbegin.o(.dtors))
|
||||
KEEP (*crtbegin?.o(.dtors))
|
||||
KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o ) .dtors))
|
||||
KEEP (*(SORT(.dtors.*)))
|
||||
KEEP (*(.dtors))
|
||||
}
|
||||
.jcr : { KEEP (*(.jcr)) }
|
||||
.data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro .data.rel.ro.* .gnu.linkonce.d.rel.ro.*) }
|
||||
.dynamic : { *(.dynamic) }
|
||||
.got : { *(.got) *(.igot) }
|
||||
. = DATA_SEGMENT_RELRO_END (SIZEOF (.got.plt) >= 24 ? 24 : 0, .);
|
||||
.got.plt : { *(.got.plt) *(.igot.plt) }
|
||||
.data :
|
||||
{
|
||||
*(.data .data.* .gnu.linkonce.d.*)
|
||||
SORT(CONSTRUCTORS)
|
||||
}
|
||||
.data1 : { *(.data1) }
|
||||
_edata = .; PROVIDE (edata = .);
|
||||
. = .;
|
||||
__bss_start = .;
|
||||
.bss :
|
||||
{
|
||||
*(.dynbss)
|
||||
*(.bss .bss.* .gnu.linkonce.b.*)
|
||||
*(COMMON)
|
||||
/* Align here to ensure that the .bss section occupies space up to
|
||||
_end. Align after .bss to ensure correct alignment even if the
|
||||
.bss section disappears because there are no input sections.
|
||||
FIXME: Why do we need it? When there is no .bss section, we do not
|
||||
pad the .data section. */
|
||||
. = ALIGN(. != 0 ? 64 / 8 : 1);
|
||||
}
|
||||
.lbss :
|
||||
{
|
||||
*(.dynlbss)
|
||||
*(.lbss .lbss.* .gnu.linkonce.lb.*)
|
||||
*(LARGE_COMMON)
|
||||
}
|
||||
. = ALIGN(64 / 8);
|
||||
. = SEGMENT_START("ldata-segment", .);
|
||||
.lrodata ALIGN(CONSTANT (MAXPAGESIZE)) + (. & (CONSTANT (MAXPAGESIZE) - 1)) :
|
||||
{
|
||||
*(.lrodata .lrodata.* .gnu.linkonce.lr.*)
|
||||
}
|
||||
.ldata ALIGN(CONSTANT (MAXPAGESIZE)) + (. & (CONSTANT (MAXPAGESIZE) - 1)) :
|
||||
{
|
||||
*(.ldata .ldata.* .gnu.linkonce.l.*)
|
||||
. = ALIGN(. != 0 ? 64 / 8 : 1);
|
||||
}
|
||||
. = ALIGN(64 / 8);
|
||||
_end = .; PROVIDE (end = .);
|
||||
. = DATA_SEGMENT_END (.);
|
||||
/* Stabs debugging sections. */
|
||||
.stab 0 : { *(.stab) }
|
||||
.stabstr 0 : { *(.stabstr) }
|
||||
.stab.excl 0 : { *(.stab.excl) }
|
||||
.stab.exclstr 0 : { *(.stab.exclstr) }
|
||||
.stab.index 0 : { *(.stab.index) }
|
||||
.stab.indexstr 0 : { *(.stab.indexstr) }
|
||||
.comment 0 : { *(.comment) }
|
||||
.gnu.build.attributes : { *(.gnu.build.attributes .gnu.build.attributes.*) }
|
||||
/* DWARF debug sections.
|
||||
Symbols in the DWARF debugging sections are relative to the beginning
|
||||
of the section so we begin them at 0. */
|
||||
/* DWARF 1 */
|
||||
.debug 0 : { *(.debug) }
|
||||
.line 0 : { *(.line) }
|
||||
/* GNU DWARF 1 extensions */
|
||||
.debug_srcinfo 0 : { *(.debug_srcinfo) }
|
||||
.debug_sfnames 0 : { *(.debug_sfnames) }
|
||||
/* DWARF 1.1 and DWARF 2 */
|
||||
.debug_aranges 0 : { *(.debug_aranges) }
|
||||
.debug_pubnames 0 : { *(.debug_pubnames) }
|
||||
/* DWARF 2 */
|
||||
.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
|
||||
.debug_abbrev 0 : { *(.debug_abbrev) }
|
||||
.debug_line 0 : { *(.debug_line .debug_line.* .debug_line_end) }
|
||||
.debug_frame 0 : { *(.debug_frame) }
|
||||
.debug_str 0 : { *(.debug_str) }
|
||||
.debug_loc 0 : { *(.debug_loc) }
|
||||
.debug_macinfo 0 : { *(.debug_macinfo) }
|
||||
/* SGI/MIPS DWARF 2 extensions */
|
||||
.debug_weaknames 0 : { *(.debug_weaknames) }
|
||||
.debug_funcnames 0 : { *(.debug_funcnames) }
|
||||
.debug_typenames 0 : { *(.debug_typenames) }
|
||||
.debug_varnames 0 : { *(.debug_varnames) }
|
||||
/* DWARF 3 */
|
||||
.debug_pubtypes 0 : { *(.debug_pubtypes) }
|
||||
.debug_ranges 0 : { *(.debug_ranges) }
|
||||
/* DWARF Extension. */
|
||||
.debug_macro 0 : { *(.debug_macro) }
|
||||
.debug_addr 0 : { *(.debug_addr) }
|
||||
.gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
|
||||
/DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) }
|
||||
}
|
||||
35
user/apps/test_fstat/main.c
Normal file
35
user/apps/test_fstat/main.c
Normal file
@ -0,0 +1,35 @@
|
||||
#include <sys/types.h>
|
||||
#include <unistd.h>
|
||||
#include <sys/stat.h>
|
||||
#include <fcntl.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
int main()
|
||||
{
|
||||
|
||||
int fd = open("/bin/about.elf", O_RDONLY);
|
||||
if (fd == -1)
|
||||
return 0;
|
||||
printf("fd = %d\n", fd);
|
||||
struct stat *st = (struct stat *)malloc(sizeof(struct stat));
|
||||
fstat(fd, st);
|
||||
printf("stat size = %d\n", sizeof(struct stat));
|
||||
// FIXME 打印数据时内存出错
|
||||
printf("====================\n");
|
||||
printf("st address: %#018lx\n", st);
|
||||
printf("st_dev = %d\n", (*st).st_dev);
|
||||
printf("st_ino = %d\n", (*st).st_ino);
|
||||
printf("st_mode = %d\n", (*st).st_mode);
|
||||
printf("st_nlink = %d\n", (*st).st_nlink);
|
||||
printf("st_uid = %d\n", (*st).st_uid);
|
||||
printf("st_gid = %d\n", (*st).st_gid);
|
||||
printf("st_rdev = %d\n", (*st).st_rdev);
|
||||
printf("st_size = %d\n", (*st).st_size);
|
||||
printf("st_blksize = %d\n", (*st).st_blksize);
|
||||
printf("st_blocks = %d\n", (*st).st_blocks);
|
||||
printf("st_atim.sec= %d\tst_atim.nsec= %d\n", (*st).st_atim.tv_sec, (*st).st_atim.tv_nsec);
|
||||
printf("st_mtim.sec= %d\tst_mtim.nsec= %d\n", (*st).st_mtim.tv_sec, (*st).st_mtim.tv_nsec);
|
||||
printf("st_ctim.sec= %d\tst_ctim.nsec= %d\n", (*st).st_ctim.tv_sec, (*st).st_ctim.tv_nsec);
|
||||
|
||||
return 0;
|
||||
}
|
||||
Reference in New Issue
Block a user