nuttx/libs/libc/modlib/modlib_globals.S

78 lines
1.3 KiB
ArmAsm
Raw Normal View History

#ifdef __CYGWIN__
# define SYMBOL(s) s
# define WEAK .weak
# define GLOBAL .global
# define SECTION .data
.macro GLOBAL ep
.global SYMBOL(\ep)
.type SYMBOL(\ep), "object"
.endm
.macro SIZE ep
.endm
#elif defined(__ELF__)
# define SYMBOL(s) s
# define WEAK .weak
# define SECTION .data
.macro GLOBAL ep
.global SYMBOL(\ep)
.type SYMBOL(\ep), "object"
.endm
.macro SIZE ep
.size SYMBOL(\ep), . - SYMBOL(\ep)
.endm
#else
# define SYMBOL(s) _##s
# define WEAK .weak_definition
# define SECTION .section __DATA,__data
.macro GLOBAL ep
.private_extern SYMBOL(\ep)
.globl SYMBOL(\ep)
.endm
.macro SIZE ep
.endm
#endif
Add support for the loading of ET_DYN objects * libs/libc/machine/arm/armv7-m/arch_elf.c - Fix cast of error message parameters * build-globals.sh - Build the modlib_globals.S file used to resolve symbols when dynamically loading * libs/libc/modlib/Make.defs - Build modlib_globals.S for all targets * libs/libc/modlib/modlib_load.c - Calculate sizes and text/data addresses based on program headers rather than section headers - Handle objects with no program headers * libs/libc/modlib/modlib_bind.c - Call modlib_readsym with pointer to symbol table - Add modlib_relocatedyn to manage relocation of symbols with shared object (ET_DYN) - Differentiate between ET_REL and ET_DYN objects - Use arch independent symbol ELF_R_SYM - Cast sizes to avoid warnings * libs/libc/modlib/modlib_load.c - Cast sizes to avoid warnings * include/elf.h - Add definitions that may be found in shared objects * include/nuttx/lib/modlib.h - Add parameter to modlib_readsym prototype - Add prototypes for: - modlib_insertsymtab - modlib_findglobal - Define Elf_Dyn and Elf_Off according to the elf architecture - Add fields to mod_loadifno_s: - Program headers - Exported symbols - Data section address - Padding requirement - Section index for dynamic symbol table - Number of symbols exported - Add prottotype for modlib_freesymtab * libs/libc/dlfcn/lib_dlclose.c - Free the symbol table when the dll is closed * libs/libc/dlfcn/lib_dlopen.c - Add dump of program headers to debug routine - Differentiate between ET_REL and ET_DYN objects * libs/libc/machine/arm/armv7-m/arch_elf.c - Add handling of R_ARM_RELATIVE and R_ARM_JUMP slot relocation types * libs/libc/modlib/modlib_loadshdrs.c - Rename modlib_loadshdrs.c to modlib_loadhdrs.c - Rename modlib_loadshdrs to modlib_loadhdrs - Add code to load program headers * libs/libc/modlib/modlib_symbols.c - Define entry point structure - Add offset parameter to modlib_symname() and use to find symbol names - Add symtab section header parameter to modlib_readsym() - Add offset parameter to modlib_symvalue() to locate symbol names - Add modlib_insertsyntab() to create a symbol table for exporting and resolution - Add findEP() to resolve a symbol in the modlib_global table - Add modlib_findglobal() to find symbol in the modlib_global table - Add modlib_freesymtab() to free the symbol table * libs/libc/modlib/modlib_uninit.c - Free header and sections from a module_loadinfo_s control block * libs/libc/modlib/modlib_verify.c - Handle ET_DYN shared objects * libs/libc/modlib/modlib_globals.S - Multi-target global table - Define library APIs that may be resolved when loading a shared object
2022-09-26 08:22:03 +02:00
#if __SIZEOF_POINTER__ == 8
.macro globalEntry index, ep
WEAK SYMBOL(\ep)
.quad .l\index
.quad \ep
Add support for the loading of ET_DYN objects * libs/libc/machine/arm/armv7-m/arch_elf.c - Fix cast of error message parameters * build-globals.sh - Build the modlib_globals.S file used to resolve symbols when dynamically loading * libs/libc/modlib/Make.defs - Build modlib_globals.S for all targets * libs/libc/modlib/modlib_load.c - Calculate sizes and text/data addresses based on program headers rather than section headers - Handle objects with no program headers * libs/libc/modlib/modlib_bind.c - Call modlib_readsym with pointer to symbol table - Add modlib_relocatedyn to manage relocation of symbols with shared object (ET_DYN) - Differentiate between ET_REL and ET_DYN objects - Use arch independent symbol ELF_R_SYM - Cast sizes to avoid warnings * libs/libc/modlib/modlib_load.c - Cast sizes to avoid warnings * include/elf.h - Add definitions that may be found in shared objects * include/nuttx/lib/modlib.h - Add parameter to modlib_readsym prototype - Add prototypes for: - modlib_insertsymtab - modlib_findglobal - Define Elf_Dyn and Elf_Off according to the elf architecture - Add fields to mod_loadifno_s: - Program headers - Exported symbols - Data section address - Padding requirement - Section index for dynamic symbol table - Number of symbols exported - Add prottotype for modlib_freesymtab * libs/libc/dlfcn/lib_dlclose.c - Free the symbol table when the dll is closed * libs/libc/dlfcn/lib_dlopen.c - Add dump of program headers to debug routine - Differentiate between ET_REL and ET_DYN objects * libs/libc/machine/arm/armv7-m/arch_elf.c - Add handling of R_ARM_RELATIVE and R_ARM_JUMP slot relocation types * libs/libc/modlib/modlib_loadshdrs.c - Rename modlib_loadshdrs.c to modlib_loadhdrs.c - Rename modlib_loadshdrs to modlib_loadhdrs - Add code to load program headers * libs/libc/modlib/modlib_symbols.c - Define entry point structure - Add offset parameter to modlib_symname() and use to find symbol names - Add symtab section header parameter to modlib_readsym() - Add offset parameter to modlib_symvalue() to locate symbol names - Add modlib_insertsyntab() to create a symbol table for exporting and resolution - Add findEP() to resolve a symbol in the modlib_global table - Add modlib_findglobal() to find symbol in the modlib_global table - Add modlib_freesymtab() to free the symbol table * libs/libc/modlib/modlib_uninit.c - Free header and sections from a module_loadinfo_s control block * libs/libc/modlib/modlib_verify.c - Handle ET_DYN shared objects * libs/libc/modlib/modlib_globals.S - Multi-target global table - Define library APIs that may be resolved when loading a shared object
2022-09-26 08:22:03 +02:00
.endm
# define ALIGN 8
#else
.macro globalEntry index, ep
WEAK SYMBOL(\ep)
.long .l\index
.long \ep
Add support for the loading of ET_DYN objects * libs/libc/machine/arm/armv7-m/arch_elf.c - Fix cast of error message parameters * build-globals.sh - Build the modlib_globals.S file used to resolve symbols when dynamically loading * libs/libc/modlib/Make.defs - Build modlib_globals.S for all targets * libs/libc/modlib/modlib_load.c - Calculate sizes and text/data addresses based on program headers rather than section headers - Handle objects with no program headers * libs/libc/modlib/modlib_bind.c - Call modlib_readsym with pointer to symbol table - Add modlib_relocatedyn to manage relocation of symbols with shared object (ET_DYN) - Differentiate between ET_REL and ET_DYN objects - Use arch independent symbol ELF_R_SYM - Cast sizes to avoid warnings * libs/libc/modlib/modlib_load.c - Cast sizes to avoid warnings * include/elf.h - Add definitions that may be found in shared objects * include/nuttx/lib/modlib.h - Add parameter to modlib_readsym prototype - Add prototypes for: - modlib_insertsymtab - modlib_findglobal - Define Elf_Dyn and Elf_Off according to the elf architecture - Add fields to mod_loadifno_s: - Program headers - Exported symbols - Data section address - Padding requirement - Section index for dynamic symbol table - Number of symbols exported - Add prottotype for modlib_freesymtab * libs/libc/dlfcn/lib_dlclose.c - Free the symbol table when the dll is closed * libs/libc/dlfcn/lib_dlopen.c - Add dump of program headers to debug routine - Differentiate between ET_REL and ET_DYN objects * libs/libc/machine/arm/armv7-m/arch_elf.c - Add handling of R_ARM_RELATIVE and R_ARM_JUMP slot relocation types * libs/libc/modlib/modlib_loadshdrs.c - Rename modlib_loadshdrs.c to modlib_loadhdrs.c - Rename modlib_loadshdrs to modlib_loadhdrs - Add code to load program headers * libs/libc/modlib/modlib_symbols.c - Define entry point structure - Add offset parameter to modlib_symname() and use to find symbol names - Add symtab section header parameter to modlib_readsym() - Add offset parameter to modlib_symvalue() to locate symbol names - Add modlib_insertsyntab() to create a symbol table for exporting and resolution - Add findEP() to resolve a symbol in the modlib_global table - Add modlib_findglobal() to find symbol in the modlib_global table - Add modlib_freesymtab() to free the symbol table * libs/libc/modlib/modlib_uninit.c - Free header and sections from a module_loadinfo_s control block * libs/libc/modlib/modlib_verify.c - Handle ET_DYN shared objects * libs/libc/modlib/modlib_globals.S - Multi-target global table - Define library APIs that may be resolved when loading a shared object
2022-09-26 08:22:03 +02:00
.endm
# define ALIGN 4
#endif
#ifdef __ARM_ARCH_ISA_THUMB2
# ifdef __ARM_ARCH_7M__
.arch armv7e-m
Add support for the loading of ET_DYN objects * libs/libc/machine/arm/armv7-m/arch_elf.c - Fix cast of error message parameters * build-globals.sh - Build the modlib_globals.S file used to resolve symbols when dynamically loading * libs/libc/modlib/Make.defs - Build modlib_globals.S for all targets * libs/libc/modlib/modlib_load.c - Calculate sizes and text/data addresses based on program headers rather than section headers - Handle objects with no program headers * libs/libc/modlib/modlib_bind.c - Call modlib_readsym with pointer to symbol table - Add modlib_relocatedyn to manage relocation of symbols with shared object (ET_DYN) - Differentiate between ET_REL and ET_DYN objects - Use arch independent symbol ELF_R_SYM - Cast sizes to avoid warnings * libs/libc/modlib/modlib_load.c - Cast sizes to avoid warnings * include/elf.h - Add definitions that may be found in shared objects * include/nuttx/lib/modlib.h - Add parameter to modlib_readsym prototype - Add prototypes for: - modlib_insertsymtab - modlib_findglobal - Define Elf_Dyn and Elf_Off according to the elf architecture - Add fields to mod_loadifno_s: - Program headers - Exported symbols - Data section address - Padding requirement - Section index for dynamic symbol table - Number of symbols exported - Add prottotype for modlib_freesymtab * libs/libc/dlfcn/lib_dlclose.c - Free the symbol table when the dll is closed * libs/libc/dlfcn/lib_dlopen.c - Add dump of program headers to debug routine - Differentiate between ET_REL and ET_DYN objects * libs/libc/machine/arm/armv7-m/arch_elf.c - Add handling of R_ARM_RELATIVE and R_ARM_JUMP slot relocation types * libs/libc/modlib/modlib_loadshdrs.c - Rename modlib_loadshdrs.c to modlib_loadhdrs.c - Rename modlib_loadshdrs to modlib_loadhdrs - Add code to load program headers * libs/libc/modlib/modlib_symbols.c - Define entry point structure - Add offset parameter to modlib_symname() and use to find symbol names - Add symtab section header parameter to modlib_readsym() - Add offset parameter to modlib_symvalue() to locate symbol names - Add modlib_insertsyntab() to create a symbol table for exporting and resolution - Add findEP() to resolve a symbol in the modlib_global table - Add modlib_findglobal() to find symbol in the modlib_global table - Add modlib_freesymtab() to free the symbol table * libs/libc/modlib/modlib_uninit.c - Free header and sections from a module_loadinfo_s control block * libs/libc/modlib/modlib_verify.c - Handle ET_DYN shared objects * libs/libc/modlib/modlib_globals.S - Multi-target global table - Define library APIs that may be resolved when loading a shared object
2022-09-26 08:22:03 +02:00
# elif defined ___ARM_ARCH 8
.arch armv8-m.base
#endif
#ifdef __ARM_ASM_SYNTAX_UNIFIED__
.syntax unified
#endif
.thumb
#endif
.data
.align ALIGN
GLOBAL globalNames
Add support for the loading of ET_DYN objects * libs/libc/machine/arm/armv7-m/arch_elf.c - Fix cast of error message parameters * build-globals.sh - Build the modlib_globals.S file used to resolve symbols when dynamically loading * libs/libc/modlib/Make.defs - Build modlib_globals.S for all targets * libs/libc/modlib/modlib_load.c - Calculate sizes and text/data addresses based on program headers rather than section headers - Handle objects with no program headers * libs/libc/modlib/modlib_bind.c - Call modlib_readsym with pointer to symbol table - Add modlib_relocatedyn to manage relocation of symbols with shared object (ET_DYN) - Differentiate between ET_REL and ET_DYN objects - Use arch independent symbol ELF_R_SYM - Cast sizes to avoid warnings * libs/libc/modlib/modlib_load.c - Cast sizes to avoid warnings * include/elf.h - Add definitions that may be found in shared objects * include/nuttx/lib/modlib.h - Add parameter to modlib_readsym prototype - Add prototypes for: - modlib_insertsymtab - modlib_findglobal - Define Elf_Dyn and Elf_Off according to the elf architecture - Add fields to mod_loadifno_s: - Program headers - Exported symbols - Data section address - Padding requirement - Section index for dynamic symbol table - Number of symbols exported - Add prottotype for modlib_freesymtab * libs/libc/dlfcn/lib_dlclose.c - Free the symbol table when the dll is closed * libs/libc/dlfcn/lib_dlopen.c - Add dump of program headers to debug routine - Differentiate between ET_REL and ET_DYN objects * libs/libc/machine/arm/armv7-m/arch_elf.c - Add handling of R_ARM_RELATIVE and R_ARM_JUMP slot relocation types * libs/libc/modlib/modlib_loadshdrs.c - Rename modlib_loadshdrs.c to modlib_loadhdrs.c - Rename modlib_loadshdrs to modlib_loadhdrs - Add code to load program headers * libs/libc/modlib/modlib_symbols.c - Define entry point structure - Add offset parameter to modlib_symname() and use to find symbol names - Add symtab section header parameter to modlib_readsym() - Add offset parameter to modlib_symvalue() to locate symbol names - Add modlib_insertsyntab() to create a symbol table for exporting and resolution - Add findEP() to resolve a symbol in the modlib_global table - Add modlib_findglobal() to find symbol in the modlib_global table - Add modlib_freesymtab() to free the symbol table * libs/libc/modlib/modlib_uninit.c - Free header and sections from a module_loadinfo_s control block * libs/libc/modlib/modlib_verify.c - Handle ET_DYN shared objects * libs/libc/modlib/modlib_globals.S - Multi-target global table - Define library APIs that may be resolved when loading a shared object
2022-09-26 08:22:03 +02:00
SYMBOL(globalNames):
SIZE globalNames
Add support for the loading of ET_DYN objects * libs/libc/machine/arm/armv7-m/arch_elf.c - Fix cast of error message parameters * build-globals.sh - Build the modlib_globals.S file used to resolve symbols when dynamically loading * libs/libc/modlib/Make.defs - Build modlib_globals.S for all targets * libs/libc/modlib/modlib_load.c - Calculate sizes and text/data addresses based on program headers rather than section headers - Handle objects with no program headers * libs/libc/modlib/modlib_bind.c - Call modlib_readsym with pointer to symbol table - Add modlib_relocatedyn to manage relocation of symbols with shared object (ET_DYN) - Differentiate between ET_REL and ET_DYN objects - Use arch independent symbol ELF_R_SYM - Cast sizes to avoid warnings * libs/libc/modlib/modlib_load.c - Cast sizes to avoid warnings * include/elf.h - Add definitions that may be found in shared objects * include/nuttx/lib/modlib.h - Add parameter to modlib_readsym prototype - Add prototypes for: - modlib_insertsymtab - modlib_findglobal - Define Elf_Dyn and Elf_Off according to the elf architecture - Add fields to mod_loadifno_s: - Program headers - Exported symbols - Data section address - Padding requirement - Section index for dynamic symbol table - Number of symbols exported - Add prottotype for modlib_freesymtab * libs/libc/dlfcn/lib_dlclose.c - Free the symbol table when the dll is closed * libs/libc/dlfcn/lib_dlopen.c - Add dump of program headers to debug routine - Differentiate between ET_REL and ET_DYN objects * libs/libc/machine/arm/armv7-m/arch_elf.c - Add handling of R_ARM_RELATIVE and R_ARM_JUMP slot relocation types * libs/libc/modlib/modlib_loadshdrs.c - Rename modlib_loadshdrs.c to modlib_loadhdrs.c - Rename modlib_loadshdrs to modlib_loadhdrs - Add code to load program headers * libs/libc/modlib/modlib_symbols.c - Define entry point structure - Add offset parameter to modlib_symname() and use to find symbol names - Add symtab section header parameter to modlib_readsym() - Add offset parameter to modlib_symvalue() to locate symbol names - Add modlib_insertsyntab() to create a symbol table for exporting and resolution - Add findEP() to resolve a symbol in the modlib_global table - Add modlib_findglobal() to find symbol in the modlib_global table - Add modlib_freesymtab() to free the symbol table * libs/libc/modlib/modlib_uninit.c - Free header and sections from a module_loadinfo_s control block * libs/libc/modlib/modlib_verify.c - Handle ET_DYN shared objects * libs/libc/modlib/modlib_globals.S - Multi-target global table - Define library APIs that may be resolved when loading a shared object
2022-09-26 08:22:03 +02:00
.align ALIGN
GLOBAL nGlobals
SYMBOL(nGlobals):
.word 0
SIZE nGlobals
Add support for the loading of ET_DYN objects * libs/libc/machine/arm/armv7-m/arch_elf.c - Fix cast of error message parameters * build-globals.sh - Build the modlib_globals.S file used to resolve symbols when dynamically loading * libs/libc/modlib/Make.defs - Build modlib_globals.S for all targets * libs/libc/modlib/modlib_load.c - Calculate sizes and text/data addresses based on program headers rather than section headers - Handle objects with no program headers * libs/libc/modlib/modlib_bind.c - Call modlib_readsym with pointer to symbol table - Add modlib_relocatedyn to manage relocation of symbols with shared object (ET_DYN) - Differentiate between ET_REL and ET_DYN objects - Use arch independent symbol ELF_R_SYM - Cast sizes to avoid warnings * libs/libc/modlib/modlib_load.c - Cast sizes to avoid warnings * include/elf.h - Add definitions that may be found in shared objects * include/nuttx/lib/modlib.h - Add parameter to modlib_readsym prototype - Add prototypes for: - modlib_insertsymtab - modlib_findglobal - Define Elf_Dyn and Elf_Off according to the elf architecture - Add fields to mod_loadifno_s: - Program headers - Exported symbols - Data section address - Padding requirement - Section index for dynamic symbol table - Number of symbols exported - Add prottotype for modlib_freesymtab * libs/libc/dlfcn/lib_dlclose.c - Free the symbol table when the dll is closed * libs/libc/dlfcn/lib_dlopen.c - Add dump of program headers to debug routine - Differentiate between ET_REL and ET_DYN objects * libs/libc/machine/arm/armv7-m/arch_elf.c - Add handling of R_ARM_RELATIVE and R_ARM_JUMP slot relocation types * libs/libc/modlib/modlib_loadshdrs.c - Rename modlib_loadshdrs.c to modlib_loadhdrs.c - Rename modlib_loadshdrs to modlib_loadhdrs - Add code to load program headers * libs/libc/modlib/modlib_symbols.c - Define entry point structure - Add offset parameter to modlib_symname() and use to find symbol names - Add symtab section header parameter to modlib_readsym() - Add offset parameter to modlib_symvalue() to locate symbol names - Add modlib_insertsyntab() to create a symbol table for exporting and resolution - Add findEP() to resolve a symbol in the modlib_global table - Add modlib_findglobal() to find symbol in the modlib_global table - Add modlib_freesymtab() to free the symbol table * libs/libc/modlib/modlib_uninit.c - Free header and sections from a module_loadinfo_s control block * libs/libc/modlib/modlib_verify.c - Handle ET_DYN shared objects * libs/libc/modlib/modlib_globals.S - Multi-target global table - Define library APIs that may be resolved when loading a shared object
2022-09-26 08:22:03 +02:00
.align ALIGN
GLOBAL globalTable
SYMBOL(globalTable):
SIZE globalTable