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nuttx/libs/libc/modlib/modlib_globals.S

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libs/libc/modlib: fix dynamic loader issues * build-globals.sh - Macros for defining symbols etc. based on assembler in use - Use the System.map to get all the nuttx symbols * libs/libc/modlib/modlib_globals.S - Provide an empty skeleton. If the dynamic loading functions are required then run build-global.sh after a clean build using the skeleton. This will fill out the skeleton with the symbols to be available to dynamically loaded modules. * libs/libc/modlib/modlib_loadhdrs.c - Fix case where there are no program headers are avaiable
2023-07-07 01:15:59 +02:00
#ifdef __CYGWIN__
Fix loading of ET_DYN type of shared objects * build-globals.sh - Only look in the nuttx for external symbols used when loading dynamic shared objects * include/elf64.h - Correct the type of fields in the Elf64_Phdr structure * libs/libc/dlfcn/lib_dlclose.c - Distinguish between ET_DYN and other objects as the former has both text and data in a single allocation to reserve GOT offsets * libs/libc/dlfcn/lib_dlopen.c - Code formatting * libs/libc/modlib/modlib_bind.c - Distinguish between relocation entry sizes by section type - Handle RELA style relocations * libs/libc/modlib/modlib_globals.S - Formatting fixes - Symbols should not be weak - they exist or they don't * include/nuttx/lib/modlib.h - Add an inidcator to module_s to distinguish between ET_DYN and other * libs/libc/modlib/modlib_load.c - ET_DYN objects need to keep the relative displacement between the text and data sections due to GOT references from the former to the latter. This also implies that linking may require modification from the default for the shared objects being produced. For example, default alignment may mean nearly 64K of wasted space. * libs/libc/modlib/modlib_unload.c sched/module/mod_rmmod.c - Distingusih between freeing of ET_DYN storage and other as the former is a single allocation. * libs/libc/modlib/mod_insmod.c - Cater for ET_DYN objects having init and preinit sections
2023-09-04 02:37:48 +02:00
# define SYMBOL(s) _##s
libs/libc/modlib: fix dynamic loader issues * build-globals.sh - Macros for defining symbols etc. based on assembler in use - Use the System.map to get all the nuttx symbols * libs/libc/modlib/modlib_globals.S - Provide an empty skeleton. If the dynamic loading functions are required then run build-global.sh after a clean build using the skeleton. This will fill out the skeleton with the symbols to be available to dynamically loaded modules. * libs/libc/modlib/modlib_loadhdrs.c - Fix case where there are no program headers are avaiable
2023-07-07 01:15:59 +02:00
# define GLOBAL .global
# define SECTION .data
.macro GLOBAL ep
Fix loading of ET_DYN type of shared objects * build-globals.sh - Only look in the nuttx for external symbols used when loading dynamic shared objects * include/elf64.h - Correct the type of fields in the Elf64_Phdr structure * libs/libc/dlfcn/lib_dlclose.c - Distinguish between ET_DYN and other objects as the former has both text and data in a single allocation to reserve GOT offsets * libs/libc/dlfcn/lib_dlopen.c - Code formatting * libs/libc/modlib/modlib_bind.c - Distinguish between relocation entry sizes by section type - Handle RELA style relocations * libs/libc/modlib/modlib_globals.S - Formatting fixes - Symbols should not be weak - they exist or they don't * include/nuttx/lib/modlib.h - Add an inidcator to module_s to distinguish between ET_DYN and other * libs/libc/modlib/modlib_load.c - ET_DYN objects need to keep the relative displacement between the text and data sections due to GOT references from the former to the latter. This also implies that linking may require modification from the default for the shared objects being produced. For example, default alignment may mean nearly 64K of wasted space. * libs/libc/modlib/modlib_unload.c sched/module/mod_rmmod.c - Distingusih between freeing of ET_DYN storage and other as the former is a single allocation. * libs/libc/modlib/mod_insmod.c - Cater for ET_DYN objects having init and preinit sections
2023-09-04 02:37:48 +02:00
.global SYMBOL(\ep)
.type SYMBOL(\ep), "object"
libs/libc/modlib: fix dynamic loader issues * build-globals.sh - Macros for defining symbols etc. based on assembler in use - Use the System.map to get all the nuttx symbols * libs/libc/modlib/modlib_globals.S - Provide an empty skeleton. If the dynamic loading functions are required then run build-global.sh after a clean build using the skeleton. This will fill out the skeleton with the symbols to be available to dynamically loaded modules. * libs/libc/modlib/modlib_loadhdrs.c - Fix case where there are no program headers are avaiable
2023-07-07 01:15:59 +02:00
.endm
.macro SIZE ep
.endm
#elif defined(__ELF__)
# define SYMBOL(s) s
# define SECTION .data
.macro GLOBAL ep
Fix loading of ET_DYN type of shared objects * build-globals.sh - Only look in the nuttx for external symbols used when loading dynamic shared objects * include/elf64.h - Correct the type of fields in the Elf64_Phdr structure * libs/libc/dlfcn/lib_dlclose.c - Distinguish between ET_DYN and other objects as the former has both text and data in a single allocation to reserve GOT offsets * libs/libc/dlfcn/lib_dlopen.c - Code formatting * libs/libc/modlib/modlib_bind.c - Distinguish between relocation entry sizes by section type - Handle RELA style relocations * libs/libc/modlib/modlib_globals.S - Formatting fixes - Symbols should not be weak - they exist or they don't * include/nuttx/lib/modlib.h - Add an inidcator to module_s to distinguish between ET_DYN and other * libs/libc/modlib/modlib_load.c - ET_DYN objects need to keep the relative displacement between the text and data sections due to GOT references from the former to the latter. This also implies that linking may require modification from the default for the shared objects being produced. For example, default alignment may mean nearly 64K of wasted space. * libs/libc/modlib/modlib_unload.c sched/module/mod_rmmod.c - Distingusih between freeing of ET_DYN storage and other as the former is a single allocation. * libs/libc/modlib/mod_insmod.c - Cater for ET_DYN objects having init and preinit sections
2023-09-04 02:37:48 +02:00
.global SYMBOL(\ep)
.type SYMBOL(\ep), "object"
libs/libc/modlib: fix dynamic loader issues * build-globals.sh - Macros for defining symbols etc. based on assembler in use - Use the System.map to get all the nuttx symbols * libs/libc/modlib/modlib_globals.S - Provide an empty skeleton. If the dynamic loading functions are required then run build-global.sh after a clean build using the skeleton. This will fill out the skeleton with the symbols to be available to dynamically loaded modules. * libs/libc/modlib/modlib_loadhdrs.c - Fix case where there are no program headers are avaiable
2023-07-07 01:15:59 +02:00
.endm
.macro SIZE ep
Fix loading of ET_DYN type of shared objects * build-globals.sh - Only look in the nuttx for external symbols used when loading dynamic shared objects * include/elf64.h - Correct the type of fields in the Elf64_Phdr structure * libs/libc/dlfcn/lib_dlclose.c - Distinguish between ET_DYN and other objects as the former has both text and data in a single allocation to reserve GOT offsets * libs/libc/dlfcn/lib_dlopen.c - Code formatting * libs/libc/modlib/modlib_bind.c - Distinguish between relocation entry sizes by section type - Handle RELA style relocations * libs/libc/modlib/modlib_globals.S - Formatting fixes - Symbols should not be weak - they exist or they don't * include/nuttx/lib/modlib.h - Add an inidcator to module_s to distinguish between ET_DYN and other * libs/libc/modlib/modlib_load.c - ET_DYN objects need to keep the relative displacement between the text and data sections due to GOT references from the former to the latter. This also implies that linking may require modification from the default for the shared objects being produced. For example, default alignment may mean nearly 64K of wasted space. * libs/libc/modlib/modlib_unload.c sched/module/mod_rmmod.c - Distingusih between freeing of ET_DYN storage and other as the former is a single allocation. * libs/libc/modlib/mod_insmod.c - Cater for ET_DYN objects having init and preinit sections
2023-09-04 02:37:48 +02:00
.size SYMBOL(\ep), . - SYMBOL(\ep)
libs/libc/modlib: fix dynamic loader issues * build-globals.sh - Macros for defining symbols etc. based on assembler in use - Use the System.map to get all the nuttx symbols * libs/libc/modlib/modlib_globals.S - Provide an empty skeleton. If the dynamic loading functions are required then run build-global.sh after a clean build using the skeleton. This will fill out the skeleton with the symbols to be available to dynamically loaded modules. * libs/libc/modlib/modlib_loadhdrs.c - Fix case where there are no program headers are avaiable
2023-07-07 01:15:59 +02:00
.endm
#else
# define SYMBOL(s) _##s
# 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
libs/libc/modlib: fix dynamic loader issues * build-globals.sh - Macros for defining symbols etc. based on assembler in use - Use the System.map to get all the nuttx symbols * libs/libc/modlib/modlib_globals.S - Provide an empty skeleton. If the dynamic loading functions are required then run build-global.sh after a clean build using the skeleton. This will fill out the skeleton with the symbols to be available to dynamically loaded modules. * libs/libc/modlib/modlib_loadhdrs.c - Fix case where there are no program headers are avaiable
2023-07-07 01:15:59 +02:00
.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
libs/libc/modlib: fix dynamic loader issues * build-globals.sh - Macros for defining symbols etc. based on assembler in use - Use the System.map to get all the nuttx symbols * libs/libc/modlib/modlib_globals.S - Provide an empty skeleton. If the dynamic loading functions are required then run build-global.sh after a clean build using the skeleton. This will fill out the skeleton with the symbols to be available to dynamically loaded modules. * libs/libc/modlib/modlib_loadhdrs.c - Fix case where there are no program headers are avaiable
2023-07-07 01:15:59 +02:00
.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__
libs/libc/modlib: fix dynamic loader issues * build-globals.sh - Macros for defining symbols etc. based on assembler in use - Use the System.map to get all the nuttx symbols * libs/libc/modlib/modlib_globals.S - Provide an empty skeleton. If the dynamic loading functions are required then run build-global.sh after a clean build using the skeleton. This will fill out the skeleton with the symbols to be available to dynamically loaded modules. * libs/libc/modlib/modlib_loadhdrs.c - Fix case where there are no program headers are avaiable
2023-07-07 01:15:59 +02:00
.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
libs/libc/modlib: fix dynamic loader issues * build-globals.sh - Macros for defining symbols etc. based on assembler in use - Use the System.map to get all the nuttx symbols * libs/libc/modlib/modlib_globals.S - Provide an empty skeleton. If the dynamic loading functions are required then run build-global.sh after a clean build using the skeleton. This will fill out the skeleton with the symbols to be available to dynamically loaded modules. * libs/libc/modlib/modlib_loadhdrs.c - Fix case where there are no program headers are avaiable
2023-07-07 01:15:59 +02:00
#ifdef __ARM_ASM_SYNTAX_UNIFIED__
Fix loading of ET_DYN type of shared objects * build-globals.sh - Only look in the nuttx for external symbols used when loading dynamic shared objects * include/elf64.h - Correct the type of fields in the Elf64_Phdr structure * libs/libc/dlfcn/lib_dlclose.c - Distinguish between ET_DYN and other objects as the former has both text and data in a single allocation to reserve GOT offsets * libs/libc/dlfcn/lib_dlopen.c - Code formatting * libs/libc/modlib/modlib_bind.c - Distinguish between relocation entry sizes by section type - Handle RELA style relocations * libs/libc/modlib/modlib_globals.S - Formatting fixes - Symbols should not be weak - they exist or they don't * include/nuttx/lib/modlib.h - Add an inidcator to module_s to distinguish between ET_DYN and other * libs/libc/modlib/modlib_load.c - ET_DYN objects need to keep the relative displacement between the text and data sections due to GOT references from the former to the latter. This also implies that linking may require modification from the default for the shared objects being produced. For example, default alignment may mean nearly 64K of wasted space. * libs/libc/modlib/modlib_unload.c sched/module/mod_rmmod.c - Distingusih between freeing of ET_DYN storage and other as the former is a single allocation. * libs/libc/modlib/mod_insmod.c - Cater for ET_DYN objects having init and preinit sections
2023-09-04 02:37:48 +02:00
.syntax unified
libs/libc/modlib: fix dynamic loader issues * build-globals.sh - Macros for defining symbols etc. based on assembler in use - Use the System.map to get all the nuttx symbols * libs/libc/modlib/modlib_globals.S - Provide an empty skeleton. If the dynamic loading functions are required then run build-global.sh after a clean build using the skeleton. This will fill out the skeleton with the symbols to be available to dynamically loaded modules. * libs/libc/modlib/modlib_loadhdrs.c - Fix case where there are no program headers are avaiable
2023-07-07 01:15:59 +02:00
#endif
.thumb
#endif
.data
.align ALIGN
Fix loading of ET_DYN type of shared objects * build-globals.sh - Only look in the nuttx for external symbols used when loading dynamic shared objects * include/elf64.h - Correct the type of fields in the Elf64_Phdr structure * libs/libc/dlfcn/lib_dlclose.c - Distinguish between ET_DYN and other objects as the former has both text and data in a single allocation to reserve GOT offsets * libs/libc/dlfcn/lib_dlopen.c - Code formatting * libs/libc/modlib/modlib_bind.c - Distinguish between relocation entry sizes by section type - Handle RELA style relocations * libs/libc/modlib/modlib_globals.S - Formatting fixes - Symbols should not be weak - they exist or they don't * include/nuttx/lib/modlib.h - Add an inidcator to module_s to distinguish between ET_DYN and other * libs/libc/modlib/modlib_load.c - ET_DYN objects need to keep the relative displacement between the text and data sections due to GOT references from the former to the latter. This also implies that linking may require modification from the default for the shared objects being produced. For example, default alignment may mean nearly 64K of wasted space. * libs/libc/modlib/modlib_unload.c sched/module/mod_rmmod.c - Distingusih between freeing of ET_DYN storage and other as the former is a single allocation. * libs/libc/modlib/mod_insmod.c - Cater for ET_DYN objects having init and preinit sections
2023-09-04 02:37:48 +02:00
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
libs/libc/modlib: fix dynamic loader issues * build-globals.sh - Macros for defining symbols etc. based on assembler in use - Use the System.map to get all the nuttx symbols * libs/libc/modlib/modlib_globals.S - Provide an empty skeleton. If the dynamic loading functions are required then run build-global.sh after a clean build using the skeleton. This will fill out the skeleton with the symbols to be available to dynamically loaded modules. * libs/libc/modlib/modlib_loadhdrs.c - Fix case where there are no program headers are avaiable
2023-07-07 01:15:59 +02:00
SYMBOL(globalNames):
Fix loading of ET_DYN type of shared objects * build-globals.sh - Only look in the nuttx for external symbols used when loading dynamic shared objects * include/elf64.h - Correct the type of fields in the Elf64_Phdr structure * libs/libc/dlfcn/lib_dlclose.c - Distinguish between ET_DYN and other objects as the former has both text and data in a single allocation to reserve GOT offsets * libs/libc/dlfcn/lib_dlopen.c - Code formatting * libs/libc/modlib/modlib_bind.c - Distinguish between relocation entry sizes by section type - Handle RELA style relocations * libs/libc/modlib/modlib_globals.S - Formatting fixes - Symbols should not be weak - they exist or they don't * include/nuttx/lib/modlib.h - Add an inidcator to module_s to distinguish between ET_DYN and other * libs/libc/modlib/modlib_load.c - ET_DYN objects need to keep the relative displacement between the text and data sections due to GOT references from the former to the latter. This also implies that linking may require modification from the default for the shared objects being produced. For example, default alignment may mean nearly 64K of wasted space. * libs/libc/modlib/modlib_unload.c sched/module/mod_rmmod.c - Distingusih between freeing of ET_DYN storage and other as the former is a single allocation. * libs/libc/modlib/mod_insmod.c - Cater for ET_DYN objects having init and preinit sections
2023-09-04 02:37:48 +02:00
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
Fix error: Mixed case identifier found Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-07-09 00:16:11 +02:00
GLOBAL nglobals
Fix loading of ET_DYN type of shared objects * build-globals.sh - Only look in the nuttx for external symbols used when loading dynamic shared objects * include/elf64.h - Correct the type of fields in the Elf64_Phdr structure * libs/libc/dlfcn/lib_dlclose.c - Distinguish between ET_DYN and other objects as the former has both text and data in a single allocation to reserve GOT offsets * libs/libc/dlfcn/lib_dlopen.c - Code formatting * libs/libc/modlib/modlib_bind.c - Distinguish between relocation entry sizes by section type - Handle RELA style relocations * libs/libc/modlib/modlib_globals.S - Formatting fixes - Symbols should not be weak - they exist or they don't * include/nuttx/lib/modlib.h - Add an inidcator to module_s to distinguish between ET_DYN and other * libs/libc/modlib/modlib_load.c - ET_DYN objects need to keep the relative displacement between the text and data sections due to GOT references from the former to the latter. This also implies that linking may require modification from the default for the shared objects being produced. For example, default alignment may mean nearly 64K of wasted space. * libs/libc/modlib/modlib_unload.c sched/module/mod_rmmod.c - Distingusih between freeing of ET_DYN storage and other as the former is a single allocation. * libs/libc/modlib/mod_insmod.c - Cater for ET_DYN objects having init and preinit sections
2023-09-04 02:37:48 +02:00
SYMBOL(nglobals):
libs/libc/modlib: fix dynamic loader issues * build-globals.sh - Macros for defining symbols etc. based on assembler in use - Use the System.map to get all the nuttx symbols * libs/libc/modlib/modlib_globals.S - Provide an empty skeleton. If the dynamic loading functions are required then run build-global.sh after a clean build using the skeleton. This will fill out the skeleton with the symbols to be available to dynamically loaded modules. * libs/libc/modlib/modlib_loadhdrs.c - Fix case where there are no program headers are avaiable
2023-07-07 01:15:59 +02:00
.word 0
Fix error: Mixed case identifier found Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-07-09 00:16:11 +02:00
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
Fix error: Mixed case identifier found Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-07-09 00:16:11 +02:00
GLOBAL global_table
SYMBOL(global_table):
SIZE global_table
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