diff options
Diffstat (limited to 'backends/platform')
-rw-r--r-- | backends/platform/psp/Makefile | 2 | ||||
-rw-r--r-- | backends/platform/psp/elf32.h | 209 | ||||
-rw-r--r-- | backends/platform/psp/main_prog.ld | 253 |
3 files changed, 1 insertions, 463 deletions
diff --git a/backends/platform/psp/Makefile b/backends/platform/psp/Makefile index 9f6b5c8921..dab3c34b51 100644 --- a/backends/platform/psp/Makefile +++ b/backends/platform/psp/Makefile @@ -170,7 +170,7 @@ PSP_EBOOT_PIC1 = pic1.png PSP_EBOOT_SND0 = NULL PSP_EBOOT_PSAR = NULL -LDFLAGS += -Wl,-Tmain_prog.ld +LDFLAGS += -Wl,-T../../plugins/psp/main_prog.ld all: $(PSP_EBOOT) diff --git a/backends/platform/psp/elf32.h b/backends/platform/psp/elf32.h deleted file mode 100644 index 616cc4b4d2..0000000000 --- a/backends/platform/psp/elf32.h +++ /dev/null @@ -1,209 +0,0 @@ -/* ScummVM - Graphic Adventure Engine - * - * ScummVM is the legal property of its developers, whose names - * are too numerous to list here. Please refer to the COPYRIGHT - * file distributed with this source distribution. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - * $URL$ - * $Id$ - * - */ - -#ifndef BACKENDS_ELF_H -#define BACKENDS_ELF_H - -/* ELF stuff */ - -typedef unsigned short Elf32_Half, Elf32_Section; -typedef unsigned int Elf32_Word, Elf32_Addr, Elf32_Off; -typedef signed int Elf32_Sword; -typedef Elf32_Half Elf32_Versym; - -#define EI_NIDENT (16) -#define SELFMAG 6 - -/* ELF File format structures. Look up ELF structure for more details */ - -// ELF header (contains info about the file) -typedef struct { - unsigned char e_ident[EI_NIDENT]; /* Magic number and other info */ - Elf32_Half e_type; /* Object file type */ - Elf32_Half e_machine; /* Architecture */ - Elf32_Word e_version; /* Object file version */ - Elf32_Addr e_entry; /* Entry point virtual address */ - Elf32_Off e_phoff; /* Program header table file offset */ - Elf32_Off e_shoff; /* Section header table file offset */ - Elf32_Word e_flags; /* Processor-specific flags */ - Elf32_Half e_ehsize; /* ELF header size in bytes */ - Elf32_Half e_phentsize; /* Program header table entry size */ - Elf32_Half e_phnum; /* Program header table entry count */ - Elf32_Half e_shentsize; /* Section header table entry size */ - Elf32_Half e_shnum; /* Section header table entry count */ - Elf32_Half e_shstrndx; /* Section header string table index */ -} Elf32_Ehdr; - -// Should be in e_ident -#define ELFMAG "\177ELF\1\1" /* ELF Magic number */ - -// e_type values -#define ET_NONE 0 /* no file type */ -#define ET_REL 1 /* relocatable */ -#define ET_EXEC 2 /* executable */ -#define ET_DYN 3 /* shared object */ -#define ET_CORE 4 /* core file */ - -// e_machine values -#define EM_MIPS 8 - - -// Program header (contains info about segment) -typedef struct { - Elf32_Word p_type; /* Segment type */ - Elf32_Off p_offset; /* Segment file offset */ - Elf32_Addr p_vaddr; /* Segment virtual address */ - Elf32_Addr p_paddr; /* Segment physical address */ - Elf32_Word p_filesz; /* Segment size in file */ - Elf32_Word p_memsz; /* Segment size in memory */ - Elf32_Word p_flags; /* Segment flags */ - Elf32_Word p_align; /* Segment alignment */ -} Elf32_Phdr; - -// p_type values -#define PT_NULL 0 /* ignored */ -#define PT_LOAD 1 /* loadable segment */ -#define PT_DYNAMIC 2 /* dynamic linking info */ -#define PT_INTERP 3 /* info about interpreter */ -#define PT_NOTE 4 /* note segment */ -#define PT_SHLIB 5 /* reserved */ -#define PT_PHDR 6 /* Program header table */ -#define PT_MIPS_REGINFO 0x70000000 /* register usage info */ - -// p_flags value -#define PF_X 1 /* execute */ -#define PF_W 2 /* write */ -#define PF_R 4 /* read */ - -// Section header (contains info about section) -typedef struct { - Elf32_Word sh_name; /* Section name (string tbl index) */ - Elf32_Word sh_type; /* Section type */ - Elf32_Word sh_flags; /* Section flags */ - Elf32_Addr sh_addr; /* Section virtual addr at execution */ - Elf32_Off sh_offset; /* Section file offset */ - Elf32_Word sh_size; /* Section size in bytes */ - Elf32_Word sh_link; /* Link to another section */ - Elf32_Word sh_info; /* Additional section information */ - Elf32_Word sh_addralign; /* Section alignment */ - Elf32_Word sh_entsize; /* Entry size if section holds table */ -} Elf32_Shdr; - -// sh_type values -#define SHT_NULL 0 /* Inactive section */ -#define SHT_PROGBITS 1 /* Proprietary */ -#define SHT_SYMTAB 2 /* Symbol table */ -#define SHT_STRTAB 3 /* String table */ -#define SHT_RELA 4 /* Relocation entries with addend */ -#define SHT_HASH 5 /* Symbol hash table */ -#define SHT_DYNAMIC 6 /* Info for dynamic linking */ -#define SHT_NOTE 7 /* Note section */ -#define SHT_NOBITS 8 /* Occupies no space */ -#define SHT_REL 9 /* Relocation entries without addend */ -#define SHT_SHLIB 10 /* Reserved */ -#define SHT_DYNSYM 11 /* Minimal set of dynamic linking symbols */ -#define SHT_MIPS_LIBLSIT 0x70000000 /* Info about dynamic shared object libs */ -#define SHT_MIPS_CONFLICT 0x70000002 /* Conflicts btw executables and shared objects */ -#define SHT_MIPS_GPTAB 0x70000003 /* Global pointer table */ - -// sh_flags values -#define SHF_WRITE 0 /* writable section */ -#define SHF_ALLOC 2 /* section occupies memory */ -#define SHF_EXECINSTR 4 /* machine instructions */ -#define SHF_MIPS_GPREL 0x10000000 /* Must be made part of global data area */ - - -// Symbol entry (contain info about a symbol) -typedef struct { - Elf32_Word st_name; /* Symbol name (string tbl index) */ - Elf32_Addr st_value; /* Symbol value */ - Elf32_Word st_size; /* Symbol size */ - unsigned char st_info; /* Symbol type and binding */ - unsigned char st_other; /* Symbol visibility */ - Elf32_Section st_shndx; /* Section index */ -} Elf32_Sym; - -// Extract from the st_info -#define SYM_TYPE(x) ((x)&0xF) -#define SYM_BIND(x) ((x)>>4) - - -// Symbol binding values from st_info -#define STB_LOCAL 0 /* Symbol not visible outside object */ -#define STB_GLOBAL 1 /* Symbol visible to all object files */ -#define STB_WEAK 2 /* Similar to STB_GLOBAL */ - -// Symbol type values from st_info -#define STT_NOTYPE 0 /* Not specified */ -#define STT_OBJECT 1 /* Data object e.g. variable */ -#define STT_FUNC 2 /* Function */ -#define STT_SECTION 3 /* Section */ -#define STT_FILE 4 /* Source file associated with object file */ - -// Special section header index values from st_shndex -#define SHN_UNDEF 0 -#define SHN_LOPROC 0xFF00 /* Extended values */ -#define SHN_ABS 0xFFF1 /* Absolute value: don't relocate */ -#define SHN_COMMON 0xFFF2 /* Common block. Not allocated yet */ -#define SHN_HIPROC 0xFF1F -#define SHN_HIRESERVE 0xFFFF - -// Relocation entry (info about how to relocate) -typedef struct { - Elf32_Addr r_offset; /* Address */ - Elf32_Word r_info; /* Relocation type and symbol index */ -} Elf32_Rel; - -// Access macros for the relocation info -#define REL_TYPE(x) ((x)&0xFF) /* Extract relocation type */ -#define REL_INDEX(x) ((x)>>8) /* Extract relocation index into symbol table */ - -// MIPS relocation types -#define R_MIPS_NONE 0 -#define R_MIPS_16 1 -#define R_MIPS_32 2 -#define R_MIPS_REL32 3 -#define R_MIPS_26 4 -#define R_MIPS_HI16 5 -#define R_MIPS_LO16 6 -#define R_MIPS_GPREL16 7 -#define R_MIPS_LITERAL 8 -#define R_MIPS_GOT16 9 -#define R_MIPS_PC16 10 -#define R_MIPS_CALL16 11 -#define R_MIPS_GPREL32 12 -#define R_MIPS_GOTHI16 13 -#define R_MIPS_GOTLO16 14 -#define R_MIPS_CALLHI16 15 -#define R_MIPS_CALLLO16 16 - -// Mock function to get value of global pointer -#define getGP() ({ \ - unsigned int __valgp; \ - __asm__ ("add %0, $gp, $0" : "=r"(__valgp) : ); \ - __valgp; \ -}) - -#endif /* BACKENDS_ELF_H */ diff --git a/backends/platform/psp/main_prog.ld b/backends/platform/psp/main_prog.ld deleted file mode 100644 index 4216e7f0ab..0000000000 --- a/backends/platform/psp/main_prog.ld +++ /dev/null @@ -1,253 +0,0 @@ -OUTPUT_FORMAT("elf32-littlemips", "elf32-bigmips", - "elf32-littlemips") -OUTPUT_ARCH(mips:allegrex) -ENTRY(_start) -/* Do we need any of these for elf? - __DYNAMIC = 0; */ -SECTIONS -{ - /* Read-only sections, merged into text segment: */ - PROVIDE (__executable_start = 0x08900000); . = 0x08900000; - .interp : { *(.interp) } - .reginfo : { *(.reginfo) } - .dynamic : { *(.dynamic) } - .hash : { *(.hash) } - .dynsym : { *(.dynsym) } - .dynstr : { *(.dynstr) } - .gnu.version : { *(.gnu.version) } - .gnu.version_d : { *(.gnu.version_d) } - .gnu.version_r : { *(.gnu.version_r) } - .rel.init : { *(.rel.init) } - .rela.init : { *(.rela.init) } - .rel.text : { *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*) } - .rela.text : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) } - .rel.fini : { *(.rel.fini) } - .rela.fini : { *(.rela.fini) } - /* PSP-specific relocations. */ - .rel.sceStub.text : { *(.rel.sceStub.text) *(SORT(.rel.sceStub.text.*)) } - .rel.lib.ent.top : { *(.rel.lib.ent.top) } - .rel.lib.ent : { *(.rel.lib.ent) } - .rel.lib.ent.btm : { *(.rel.lib.ent.btm) } - .rel.lib.stub.top : { *(.rel.lib.stub.top) } - .rel.lib.stub : { *(.rel.lib.stub) } - .rel.lib.stub.btm : { *(.rel.lib.stub.btm) } - .rel.rodata.sceModuleInfo : { *(.rel.rodata.sceModuleInfo) } - .rel.rodata.sceResident : { *(.rel.rodata.sceResident) } - .rel.rodata.sceNid : { *(.rel.rodata.sceNid) } - .rel.rodata.sceVstub : { *(.rel.rodata.sceVstub) *(SORT(.rel.rodata.sceVstub.*)) } - .rel.rodata : { *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*) } - .rela.rodata : { *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) } - .rel.data.rel.ro : { *(.rel.data.rel.ro*) } - .rela.data.rel.ro : { *(.rel.data.rel.ro*) } - .rel.data : { *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*) } - .rela.data : { *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) } - .rel.tdata : { *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*) } - .rela.tdata : { *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) } - .rel.tbss : { *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*) } - .rela.tbss : { *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) } - .rel.ctors : { *(.rel.ctors) } - .rela.ctors : { *(.rela.ctors) } - .rel.dtors : { *(.rel.dtors) } - .rela.dtors : { *(.rela.dtors) } - .rel.got : { *(.rel.got) } - .rela.got : { *(.rela.got) } - .rel.sdata : { *(.rel.sdata .rel.sdata.* .rel.gnu.linkonce.s.*) } - .rela.sdata : { *(.rela.sdata .rela.sdata.* .rela.gnu.linkonce.s.*) } - .rel.sbss : { *(.rel.sbss .rel.sbss.* .rel.gnu.linkonce.sb.*) } - .rela.sbss : { *(.rela.sbss .rela.sbss.* .rela.gnu.linkonce.sb.*) } - .rel.sdata2 : { *(.rel.sdata2 .rel.sdata2.* .rel.gnu.linkonce.s2.*) } - .rela.sdata2 : { *(.rela.sdata2 .rela.sdata2.* .rela.gnu.linkonce.s2.*) } - .rel.sbss2 : { *(.rel.sbss2 .rel.sbss2.* .rel.gnu.linkonce.sb2.*) } - .rela.sbss2 : { *(.rela.sbss2 .rela.sbss2.* .rela.gnu.linkonce.sb2.*) } - .rel.bss : { *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) } - .rela.bss : { *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) } - .rel.plt : { *(.rel.plt) } - .rela.plt : { *(.rela.plt) } - .init : - { - KEEP (*(.init)) - } =0 - .plt : { *(.plt) } - .text : - { - _ftext = . ; - *(.text .stub .text.* .gnu.linkonce.t.*) - KEEP (*(.text.*personality*)) - /* .gnu.warning sections are handled specially by elf32.em. */ - *(.gnu.warning) - *(.mips16.fn.*) *(.mips16.call.*) - } =0 - .fini : - { - KEEP (*(.fini)) - } =0 - /* PSP library stub functions. */ - .sceStub.text : { *(.sceStub.text) *(SORT(.sceStub.text.*)) } - PROVIDE (__etext = .); - PROVIDE (_etext = .); - PROVIDE (etext = .); - /* PSP library entry table and library stub table. */ - .lib.ent.top : { *(.lib.ent.top) } - .lib.ent : { *(.lib.ent) } - .lib.ent.btm : { *(.lib.ent.btm) } - .lib.stub.top : { *(.lib.stub.top) } - .lib.stub : { *(.lib.stub) } - .lib.stub.btm : { *(.lib.stub.btm) } - /* PSP read-only data for module info, NIDs, and Vstubs. The - .rodata.sceModuleInfo section must appear before the .rodata section - otherwise it would get absorbed into .rodata and the PSP bootloader - would be unable to locate the module info structure. */ - .rodata.sceModuleInfo : { *(.rodata.sceModuleInfo) } - .rodata.sceResident : { *(.rodata.sceResident) } - .rodata.sceNid : { *(.rodata.sceNid) } - .rodata.sceVstub : { *(.rodata.sceVstub) *(SORT(.rodata.sceVstub.*)) } - .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } - .rodata1 : { *(.rodata1) } - .sdata2 : { *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) } - .sbss2 : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) } - .eh_frame_hdr : { *(.eh_frame_hdr) } - .eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) } - .gcc_except_table : ONLY_IF_RO { KEEP (*(.gcc_except_table)) *(.gcc_except_table.*) } - /* Adjust the address for the data segment. We want to adjust up to - the same address within the page on the next page up. */ - . = ALIGN(256) + (. & (256 - 1)); - /* Exception handling */ - .eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) } - .gcc_except_table : ONLY_IF_RW { KEEP (*(.gcc_except_table)) *(.gcc_except_table.*) } - /* Thread Local Storage sections */ - .tdata : { *(.tdata .tdata.* .gnu.linkonce.td.*) } - .tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) } - /* Ensure the __preinit_array_start label is properly aligned. We - could instead move the label definition inside the section, but - the linker would then create the section even if it turns out to - be empty, which isn't pretty. */ - . = ALIGN(32 / 8); - PROVIDE (__preinit_array_start = .); - .preinit_array : { KEEP (*(.preinit_array)) } - PROVIDE (__preinit_array_end = .); - PROVIDE (__init_array_start = .); - .init_array : { KEEP (*(.init_array)) } - PROVIDE (__init_array_end = .); - PROVIDE (__fini_array_start = .); - .fini_array : { KEEP (*(.fini_array)) } - PROVIDE (__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)) - /* We don't want to include the .ctor section from - 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 ) .ctors)) - KEEP (*(SORT(.ctors.*))) - KEEP (*(.ctors)) - } - .dtors : - { - KEEP (*crtbegin*.o(.dtors)) - KEEP (*(EXCLUDE_FILE (*crtend*.o ) .dtors)) - KEEP (*(SORT(.dtors.*))) - KEEP (*(.dtors)) - } - .jcr : { KEEP (*(.jcr)) } - .data.rel.ro : { *(.data.rel.ro.local) *(.data.rel.ro*) } - .data : - { - _fdata = . ; - *(.data .data.* .gnu.linkonce.d.*) - KEEP (*(.gnu.linkonce.d.*personality*)) - SORT(CONSTRUCTORS) - } - .data1 : { *(.data1) } - . = .; - _gp = ALIGN(16) + 0x7ff0; - .got : { *(.got.plt) *(.got) } - /* We want the small data sections together, so single-instruction offsets - can access them all, and initialized data all before uninitialized, so - we can shorten the on-disk segment size. */ - .sdata : - { - *(.sdata .sdata.* .gnu.linkonce.s.*) - } - .lit8 : { *(.lit8) } - .lit4 : { *(.lit4) } - _edata = .; - PROVIDE (edata = .); - __bss_start = .; - _fbss = .; - .sbss : - { - PROVIDE (__sbss_start = .); - PROVIDE (___sbss_start = .); - *(.dynsbss) - *(.sbss .sbss.* .gnu.linkonce.sb.*) - *(.scommon) - PROVIDE (__sbss_end = .); - PROVIDE (___sbss_end = .); - } - /* make a gap to put the plugins' short data here */ - __plugin_hole_start = .; - . = _gp + 0x7ff0; - __plugin_hole_end = .; - COMMON : - { - *(COMMON) - } - . = ALIGN(32 / 8); - .bss : - { - *(.dynbss) - *(.bss .bss.* .gnu.linkonce.b.*) - /* 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. */ - . = ALIGN(32 / 8); - } - . = ALIGN(32 / 8); - _end = .; - PROVIDE (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) } - /* 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_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) } - /DISCARD/ : { *(.comment) *(.pdr) } - /DISCARD/ : { *(.note.GNU-stack) } -} |