diff options
author | Kaleb Keithley <kaleb@freedesktop.org> | 2003-11-25 19:29:01 +0000 |
---|---|---|
committer | Kaleb Keithley <kaleb@freedesktop.org> | 2003-11-25 19:29:01 +0000 |
commit | adc7f9a4ebdfe11d4cd6de9388b63dfe36450b39 (patch) | |
tree | 23eb7becc5360b2cbe16aa8d45529880067f3989 /hw/xfree86/loader/aoutloader.c | |
parent | 90f1536dd315cd265bfc7ef35058761a65a01734 (diff) |
XFree86 4.3.99.16 Bring the tree up to date for the Cygwin folksxf86-4_3_99_16
Diffstat (limited to 'hw/xfree86/loader/aoutloader.c')
-rw-r--r-- | hw/xfree86/loader/aoutloader.c | 422 |
1 files changed, 213 insertions, 209 deletions
diff --git a/hw/xfree86/loader/aoutloader.c b/hw/xfree86/loader/aoutloader.c index 98e657dca..f77b3d73c 100644 --- a/hw/xfree86/loader/aoutloader.c +++ b/hw/xfree86/loader/aoutloader.c @@ -1,4 +1,4 @@ -/* $XFree86: xc/programs/Xserver/hw/xfree86/loader/aoutloader.c,v 1.17 2001/11/16 16:47:55 dawes Exp $ */ +/* $XFree86: xc/programs/Xserver/hw/xfree86/loader/aoutloader.c,v 1.20 2003/10/15 17:46:00 dawes Exp $ */ /* * @@ -52,10 +52,13 @@ #include "loader.h" #include "aoutloader.h" -/* -#define AOUTDEBUG ErrorF -*/ +#ifndef LOADERDEBUG +#define LOADERDEBUG 0 +#endif +#if LOADERDEBUG +#define AOUTDEBUG ErrorF +#endif #ifndef MIN #define MIN(a,b) ((a)<(b)?(a):(b)) @@ -67,22 +70,22 @@ */ typedef struct { - int handle; - int module; - int fd; - loader_funcs *funcs; - AOUTHDR *header;/* file header */ - unsigned char *text; /* Start address of the text section */ - unsigned int textsize; /* Size of the text section */ - unsigned char *data; /* Start address of the data section */ - unsigned int datasize; /* Size of the data section */ - unsigned char *bss; /* Start address of the bss data */ - unsigned int bsssize; /* Size of the bss section */ - struct relocation_info *txtrel; /* Start address of the text relocation table */ - struct relocation_info *datarel; /* Start address of the data relocation table */ - AOUT_nlist *symtab; /* Start address of the symbol table */ - unsigned char *strings; /* Start address of the string table */ - unsigned long strsize; /* size of string table */ + int handle; + int module; + int fd; + loader_funcs *funcs; + AOUTHDR *header; /* file header */ + unsigned char *text; /* Start address of the text section */ + unsigned int textsize; /* Size of the text section */ + unsigned char *data; /* Start address of the data section */ + unsigned int datasize; /* Size of the data section */ + unsigned char *bss; /* Start address of the bss data */ + unsigned int bsssize; /* Size of the bss section */ + struct relocation_info *txtrel; /* Start address of the text relocation table */ + struct relocation_info *datarel; /* Start address of the data relocation table */ + AOUT_nlist *symtab; /* Start address of the symbol table */ + unsigned char *strings; /* Start address of the string table */ + unsigned long strsize; /* size of string table */ unsigned char *common; /* Start address of the common data */ unsigned long comsize; /* size of common data */ } AOUTModuleRec, *AOUTModulePtr; @@ -121,10 +124,12 @@ static void *AOUTGetSymbolValue(AOUTModulePtr, int); static AOUTCommonPtr AOUTAddCommon(struct AOUT_nlist *, int); static LOOKUP *AOUTCreateCommon(AOUTModulePtr); static LOOKUP *AOUT_GetSymbols(AOUTModulePtr); -static AOUTRelocPtr AOUTDelayRelocation(AOUTModulePtr, int, struct relocation_info_i386 *); +static AOUTRelocPtr AOUTDelayRelocation(AOUTModulePtr, int, + struct relocation_info_i386 *); static AOUTRelocPtr AOUTCollectRelocations(AOUTModulePtr); static void AOUT_Relocate(unsigned long *, unsigned long, int); -static AOUTRelocPtr AOUT_RelocateEntry(AOUTModulePtr, int, struct relocation_info_i386 *); +static AOUTRelocPtr AOUT_RelocateEntry(AOUTModulePtr, int, + struct relocation_info_i386 *); /* * Return 1 if the symbol in item belongs to aoutfile @@ -133,6 +138,7 @@ static int AOUTHashCleanOut(void *voidptr, itemPtr item) { AOUTModulePtr aoutfile = (AOUTModulePtr) voidptr; + return (aoutfile->handle == item->handle); } @@ -140,8 +146,8 @@ AOUTHashCleanOut(void *voidptr, itemPtr item) * Manage listResolv */ static AOUTRelocPtr -AOUTDelayRelocation(AOUTModulePtr aoutfile, int type, - struct relocation_info *rel) +AOUTDelayRelocation(AOUTModulePtr aoutfile, int type, + struct relocation_info *rel) { AOUTRelocPtr reloc; @@ -158,8 +164,6 @@ AOUTDelayRelocation(AOUTModulePtr aoutfile, int type, reloc->next = 0; return reloc; } - - /* * Manage listCOMMON @@ -170,8 +174,8 @@ AOUTAddCommon(struct AOUT_nlist *sym, int index) { AOUTCommonPtr common; - if ((common = xf86loadermalloc(sizeof (AOUTCommonRec))) == NULL) { - ErrorF( "AOUTAddCommon() Unable to allocate memory\n" ); + if ((common = xf86loadermalloc(sizeof(AOUTCommonRec))) == NULL) { + ErrorF("AOUTAddCommon() Unable to allocate memory\n"); return 0; } common->sym = sym; @@ -183,8 +187,8 @@ AOUTAddCommon(struct AOUT_nlist *sym, int index) static LOOKUP * AOUTCreateCommon(AOUTModulePtr aoutfile) { - int numsyms = 0, size = 0, l = 0; - int offset = 0; + int numsyms = 0, size = 0, l = 0; + int offset = 0; AOUTCommonPtr common; LOOKUP *lookup; @@ -194,46 +198,47 @@ AOUTCreateCommon(AOUTModulePtr aoutfile) common = listCOMMON; for (common = listCOMMON; common; common = common->next) { /* Ensure long word alignment */ - if( (common->sym->n_value & (sizeof(long)-1)) != 0 ) - common->sym->n_value = (common->sym->n_value + (sizeof(long)-1)) - & ~(sizeof(long)-1); + if ((common->sym->n_value & (sizeof(long) - 1)) != 0) + common->sym->n_value = (common->sym->n_value + (sizeof(long) - 1)) + & ~(sizeof(long) - 1); /* accumulate the sizes */ size += common->sym->n_value; numsyms++; - } /* while */ + } /* while */ #ifdef AOUTDEBUG AOUTDEBUG("AOUTCreateCommon() %d entries (%d bytes) of COMMON data\n", - numsyms, size ); + numsyms, size); #endif - - if ((lookup = xf86loadermalloc((numsyms+1)*sizeof(LOOKUP))) == NULL) { - ErrorF( "AOUTCreateCommon() Unable to allocate memory\n" ); - return NULL; + + if ((lookup = xf86loadermalloc((numsyms + 1) * sizeof(LOOKUP))) == NULL) { + ErrorF("AOUTCreateCommon() Unable to allocate memory\n"); + return NULL; } - + aoutfile->comsize = size; - if ((aoutfile->common = xf86loadercalloc(1,size)) == NULL) { - ErrorF( "AOUTCreateCommon() Unable to allocate memory\n" ); - return NULL; + if ((aoutfile->common = xf86loadercalloc(1, size)) == NULL) { + ErrorF("AOUTCreateCommon() Unable to allocate memory\n"); + return NULL; } - + while (listCOMMON) { - common = listCOMMON; - lookup[l].symName= AOUTGetSymbolName(aoutfile, common->sym); - lookup[l].offset = (funcptr)(aoutfile->common+offset); + common = listCOMMON; + lookup[l].symName = AOUTGetSymbolName(aoutfile, common->sym); + lookup[l].offset = (funcptr) (aoutfile->common + offset); #ifdef AOUTDEBUG - AOUTDEBUG("Adding %x %s\n", lookup[l].offset, lookup[l].symName ); + AOUTDEBUG("Adding %p %s\n", (void *)lookup[l].offset, + lookup[l].symName); #endif - listCOMMON = common->next; - offset += common->sym->n_value; - xf86loaderfree(common); - l++; - } /* while */ + listCOMMON = common->next; + offset += common->sym->n_value; + xf86loaderfree(common); + l++; + } /* while */ /* listCOMMON == NULL */ - lookup[l].symName=NULL; /* Terminate the list */ + lookup[l].symName = NULL; /* Terminate the list */ return lookup; } @@ -244,7 +249,7 @@ AOUTCreateCommon(AOUTModulePtr aoutfile) static char * AOUTGetString(AOUTModulePtr aoutfile, int index) { - char *symname = (char *) &(aoutfile->strings[index]); + char *symname = (char *)&(aoutfile->strings[index]); if (symname[0] == '_') { symname++; @@ -252,20 +257,21 @@ AOUTGetString(AOUTModulePtr aoutfile, int index) return symname; } + /* * Return the name of a symbol */ static char * AOUTGetSymbolName(AOUTModulePtr aoutfile, struct AOUT_nlist *sym) { - char *symname = AOUTGetString(aoutfile,sym->n_un.n_strx); + char *symname = AOUTGetString(aoutfile, sym->n_un.n_strx); char *name; - name=xf86loadermalloc(strlen(symname)+1); + name = xf86loadermalloc(strlen(symname) + 1); if (!name) FatalError("AOUTGetSymbolName: Out of memory\n"); - strcpy(name,symname); + strcpy(name, symname); return name; } @@ -276,13 +282,13 @@ AOUTGetSymbolName(AOUTModulePtr aoutfile, struct AOUT_nlist *sym) static void * AOUTGetSymbolValue(AOUTModulePtr aoutfile, int index) { - void *symval = NULL; /* value of the indicated symbol */ - itemPtr symbol = NULL; /* name/value of symbol */ + void *symval = NULL; /* value of the indicated symbol */ + itemPtr symbol = NULL; /* name/value of symbol */ char *name = NULL; name = AOUTGetSymbolName(aoutfile, aoutfile->symtab + index); - if( name ) + if (name) symbol = LoaderHashFind(name); if (symbol) @@ -292,7 +298,6 @@ AOUTGetSymbolValue(AOUTModulePtr aoutfile, int index) return symval; } - /* * Perform the actual relocation */ @@ -300,28 +305,27 @@ static void AOUT_Relocate(unsigned long *destl, unsigned long val, int pcrel) { #ifdef AOUTDEBUG - AOUTDEBUG("AOUT_Relocate %p : %08x %s", - destl, *destl, pcrel == 1 ? "rel" : "abs"); + AOUTDEBUG("AOUT_Relocate %p : %08lx %s", + (void *)destl, *destl, pcrel == 1 ? "rel" : "abs"); #endif if (pcrel) { /* relative to PC */ - *destl = val - ((unsigned long)destl + sizeof(long)); + *destl = val - ((unsigned long)destl + sizeof(long)); } else { *destl += val; } #ifdef AOUTDEBUG - AOUTDEBUG(" -> %08x\n", *destl); + AOUTDEBUG(" -> %08lx\n", *destl); #endif } - /* * Fix the relocation for text or data section */ static AOUTRelocPtr AOUT_RelocateEntry(AOUTModulePtr aoutfile, int type, - struct relocation_info *rel) + struct relocation_info *rel) { AOUTHDR *header = aoutfile->header; AOUT_nlist *symtab = aoutfile->symtab; @@ -330,22 +334,23 @@ AOUT_RelocateEntry(AOUTModulePtr aoutfile, int type, unsigned long *destl; /* address of the location to be modified */ symnum = rel->r_symbolnum; -#ifdef AOUTDEBUG +#ifdef AOUTDEBUG { - char *name; - if (rel->r_extern) { - AOUTDEBUG("AOUT_RelocateEntry: extern %s\n", - name=AOUTGetSymbolName(aoutfile, symtab+symnum)); - xf86loaderfree(name); - } else { - AOUTDEBUG("AOUT_RelocateEntry: intern\n"); - } - AOUTDEBUG(" pcrel: %d", rel->r_pcrel); - AOUTDEBUG(" length: %d", rel->r_length); - AOUTDEBUG(" baserel: %d", rel->r_baserel); - AOUTDEBUG(" jmptable: %d", rel->r_jmptable); - AOUTDEBUG(" relative: %d", rel->r_relative); - AOUTDEBUG(" copy: %d\n", rel->r_copy); + char *name; + + if (rel->r_extern) { + AOUTDEBUG("AOUT_RelocateEntry: extern %s\n", + name = AOUTGetSymbolName(aoutfile, symtab + symnum)); + xf86loaderfree(name); + } else { + AOUTDEBUG("AOUT_RelocateEntry: intern\n"); + } + AOUTDEBUG(" pcrel: %d", rel->r_pcrel); + AOUTDEBUG(" length: %d", rel->r_length); + AOUTDEBUG(" baserel: %d", rel->r_baserel); + AOUTDEBUG(" jmptable: %d", rel->r_jmptable); + AOUTDEBUG(" relative: %d", rel->r_relative); + AOUTDEBUG(" copy: %d\n", rel->r_copy); } #endif /* AOUTDEBUG */ @@ -356,15 +361,15 @@ AOUT_RelocateEntry(AOUTModulePtr aoutfile, int type, * First find the address to modify */ switch (type) { - case AOUT_TEXT: + case AOUT_TEXT: /* Check that the relocation offset is in the text segment */ if (rel->r_address > header->a_text) { ErrorF("AOUT_RelocateEntry(): " "text relocation out of text section\n"); - } + } destl = (unsigned long *)(aoutfile->text + rel->r_address); break; - case AOUT_DATA: + case AOUT_DATA: /* Check that the relocation offset is in the data segment */ if (rel->r_address > header->a_data) { ErrorF("AOUT_RelocateEntry():" @@ -372,10 +377,10 @@ AOUT_RelocateEntry(AOUTModulePtr aoutfile, int type, } destl = (unsigned long *)(aoutfile->data + rel->r_address); break; - default: + default: ErrorF("AOUT_RelocateEntry(): unknown section type %d\n", type); return 0; - } /* switch */ + } /* switch */ /* * Now handle the relocation @@ -385,70 +390,70 @@ AOUT_RelocateEntry(AOUTModulePtr aoutfile, int type, symval = AOUTGetSymbolValue(aoutfile, symnum); if (symval != 0) { /* we've got the value */ - AOUT_Relocate(destl, (unsigned long) symval, rel->r_pcrel); + AOUT_Relocate(destl, (unsigned long)symval, rel->r_pcrel); return 0; } else { /* The symbol should be undefined */ switch (symtab[symnum].n_type & AOUT_TYPE) { - case AOUT_UNDF: + case AOUT_UNDF: #ifdef AOUTDEBUG AOUTDEBUG(" extern AOUT_UNDEF\n"); #endif /* Add this relocation back to the global list */ - return AOUTDelayRelocation(aoutfile,type,rel); + return AOUTDelayRelocation(aoutfile, type, rel); - default: + default: ErrorF("AOUT_RelocateEntry():" - " impossible intern relocation type: %d\n", + " impossible intern relocation type: %d\n", symtab[symnum].n_type); return 0; - } /* switch */ + } /* switch */ } } else { /* intern */ switch (rel->r_symbolnum) { - case AOUT_TEXT: + case AOUT_TEXT: #ifdef AOUTDEBUG AOUTDEBUG(" AOUT_TEXT\n"); #endif /* Only absolute intern text relocations need to be handled */ - if (rel->r_pcrel == 0) - AOUT_Relocate(destl, (unsigned long)aoutfile->text, + if (rel->r_pcrel == 0) + AOUT_Relocate(destl, (unsigned long)aoutfile->text, rel->r_pcrel); return 0; - case AOUT_DATA: + case AOUT_DATA: #ifdef AOUTDEBUG AOUTDEBUG(" AOUT_DATA\n"); #endif - if (rel->r_pcrel == 0) + if (rel->r_pcrel == 0) AOUT_Relocate(destl, (unsigned long)aoutfile->data - header->a_text, rel->r_pcrel); else ErrorF("AOUT_RelocateEntry(): " "don't know how to handle data pc-relative reloc\n"); - + return 0; - case AOUT_BSS: + case AOUT_BSS: #ifdef AOUTDEBUG AOUTDEBUG(" AOUT_BSS\n"); #endif if (rel->r_pcrel == 0) AOUT_Relocate(destl, (unsigned long)aoutfile->bss - - header->a_text - header->a_data, + - header->a_text - header->a_data, rel->r_pcrel); else ErrorF("AOUT_RelocateEntry(): " "don't know how to handle bss pc-relative reloc\n"); - + return 0; - default: + default: ErrorF("AOUT_RelocateEntry():" " unknown intern relocation type: %d\n", rel->r_symbolnum); return 0; - } /* switch */ + } /* switch */ } -} /* AOUT_RelocateEntry */ - +} /* AOUT_RelocateEntry */ + static AOUTRelocPtr AOUTCollectRelocations(AOUTModulePtr aoutfile) { @@ -460,7 +465,7 @@ AOUTCollectRelocations(AOUTModulePtr aoutfile) /* Text relocations */ if (aoutfile->text != NULL && aoutfile->txtrel != NULL) { - nreloc = header->a_trsize/sizeof(struct relocation_info); + nreloc = header->a_trsize / sizeof(struct relocation_info); for (i = 0; i < nreloc; i++) { rel = aoutfile->txtrel + i; @@ -469,28 +474,28 @@ AOUTCollectRelocations(AOUTModulePtr aoutfile) tmp->next = reloc_head; reloc_head = tmp; } - } /* for */ + } /* for */ } /* Data relocations */ if (aoutfile->data != NULL && aoutfile->datarel != NULL) { - nreloc = header->a_drsize/sizeof(struct relocation_info); - + nreloc = header->a_drsize / sizeof(struct relocation_info); + for (i = 0; i < nreloc; i++) { rel = aoutfile->datarel + i; tmp = AOUTDelayRelocation(aoutfile, AOUT_DATA, rel); tmp->next = reloc_head; reloc_head = tmp; - } /* for */ + } /* for */ } return reloc_head; -} /* AOUTCollectRelocations */ +} /* AOUTCollectRelocations */ /* * AOUT_GetSymbols() * * add the symbols to the loader's symbol table */ -static LOOKUP * +static LOOKUP * AOUT_GetSymbols(AOUTModulePtr aoutfile) { int fd = aoutfile->fd; @@ -501,11 +506,11 @@ AOUT_GetSymbols(AOUTModulePtr aoutfile) LOOKUP *lookup, *lookup_common; AOUTCommonPtr tmp; - aoutfile->symtab = (AOUT_nlist *)_LoaderFileToMem(fd, - AOUT_SYMOFF(header), - header->a_syms, - "symbols"); - nsyms = header->a_syms/sizeof(AOUT_nlist); + aoutfile->symtab = (AOUT_nlist *) _LoaderFileToMem(fd, + AOUT_SYMOFF(header), + header->a_syms, + "symbols"); + nsyms = header->a_syms / sizeof(AOUT_nlist); lookup = xf86loadermalloc(nsyms * sizeof(LOOKUP)); if (lookup == NULL) { ErrorF("AOUT_GetSymbols(): can't allocate memory\n"); @@ -513,17 +518,16 @@ AOUT_GetSymbols(AOUTModulePtr aoutfile) } for (i = 0, l = 0; i < nsyms; i++) { s = aoutfile->symtab + i; - soff=s->n_un.n_strx; - if (soff == 0 || (s->n_type & AOUT_STAB) != 0) + soff = s->n_un.n_strx; + if (soff == 0 || (s->n_type & AOUT_STAB) != 0) continue; - symname=AOUTGetSymbolName(aoutfile,s); + symname = AOUTGetSymbolName(aoutfile, s); #ifdef AOUTDEBUG - AOUTDEBUG("AOUT_GetSymbols(): %s %02x %02x %08x\n", - symname, s->n_type, - s->n_other, s->n_value); + AOUTDEBUG("AOUT_GetSymbols(): %s %02x %02x %08lx\n", + symname, s->n_type, s->n_other, s->n_value); #endif switch (s->n_type & AOUT_TYPE) { - case AOUT_UNDF: + case AOUT_UNDF: if (s->n_value != 0) { if (!LoaderHashFind(symname)) { #ifdef AOUTDEBUG @@ -542,51 +546,54 @@ AOUT_GetSymbols(AOUTModulePtr aoutfile) } xf86loaderfree(symname); break; - case AOUT_TEXT: + case AOUT_TEXT: if (s->n_type & AOUT_EXT) { lookup[l].symName = symname; /* text symbols start at 0 */ - lookup[l].offset = (funcptr)(aoutfile->text + s->n_value); + lookup[l].offset = (funcptr) (aoutfile->text + s->n_value); #ifdef AOUTDEBUG - AOUTDEBUG("Adding text %s %08x\n", symname, lookup[l].offset); + AOUTDEBUG("Adding text %s %p\n", symname, + (void *)lookup[l].offset); #endif l++; } else { xf86loaderfree(symname); } break; - case AOUT_DATA : + case AOUT_DATA: if (s->n_type & AOUT_EXT) { lookup[l].symName = symname; /* data symbols are following text */ - lookup[l].offset = (funcptr)(aoutfile->data + - s->n_value - header->a_text); + lookup[l].offset = (funcptr) (aoutfile->data + + s->n_value - header->a_text); #ifdef AOUTDEBUG - AOUTDEBUG("Adding data %s %08x\n", symname, lookup[l].offset); + AOUTDEBUG("Adding data %s %p\n", symname, + (void *)lookup[l].offset); #endif l++; } else { xf86loaderfree(symname); } break; - case AOUT_BSS: + case AOUT_BSS: if (s->n_type & AOUT_EXT) { lookup[l].symName = symname; /* bss symbols follow both text and data */ - lookup[l].offset = (funcptr)(aoutfile->bss + s->n_value - - (header->a_data - + header->a_text)); + lookup[l].offset = (funcptr) (aoutfile->bss + s->n_value + - (header->a_data + + header->a_text)); #ifdef AOUTDEBUG - AOUTDEBUG("Adding bss %s %08x\n", symname, lookup[l].offset); + AOUTDEBUG("Adding bss %s %p\n", symname, + (void *)lookup[l].offset); #endif l++; } else { xf86loaderfree(symname); } break; - case AOUT_FN: + case AOUT_FN: #ifdef AOUTDEBUG - if (n->n_type& AOUT_EXT) { + if (s->n_type & AOUT_EXT) { AOUTDEBUG("Ignoring AOUT_FN %s\n", symname); } else { AOUTDEBUG("Ignoring AOUT_WARN %s\n", symname); @@ -594,68 +601,66 @@ AOUT_GetSymbols(AOUTModulePtr aoutfile) #endif xf86loaderfree(symname); break; - default: - ErrorF("Unknown symbol type %x\n", s->n_type & AOUT_TYPE); - xf86loaderfree(symname); - } /* switch */ - } /* for */ + default: + ErrorF("Unknown symbol type %x\n", s->n_type & AOUT_TYPE); + xf86loaderfree(symname); + } /* switch */ + } /* for */ lookup[l].symName = NULL; - + lookup_common = AOUTCreateCommon(aoutfile); if (lookup_common) { LOOKUP *p; - for (i = 0, p = lookup_common; p->symName; i++, p++) - ; - memcpy(&(lookup[l]), lookup_common, i * sizeof (LOOKUP)); + for (i = 0, p = lookup_common; p->symName; i++, p++) ; + memcpy(&(lookup[l]), lookup_common, i * sizeof(LOOKUP)); xf86loaderfree(lookup_common); l += i; lookup[l].symName = NULL; } return lookup; -} /* AOUT_GetSymbols */ +} /* AOUT_GetSymbols */ /* * Public API for the a.out implementation of the loader */ void * -AOUTLoadModule(loaderPtr modrec, - int aoutfd, - LOOKUP **ppLookup) +AOUTLoadModule(loaderPtr modrec, int aoutfd, LOOKUP ** ppLookup) { AOUTModulePtr aoutfile = NULL; AOUTHDR *header; AOUTRelocPtr reloc, tail; - void *v; + void *v; #ifdef AOUTDEBUG AOUTDEBUG("AOUTLoadModule(%s, %d, %d)\n", modrec->name, modrec->handle, aoutfd); #endif - if ((aoutfile=xf86loadercalloc(1,sizeof(AOUTModuleRec))) == NULL ) { - ErrorF( "Unable to allocate AOUTModuleRec\n" ); + if ((aoutfile = xf86loadercalloc(1, sizeof(AOUTModuleRec))) == NULL) { + ErrorF("Unable to allocate AOUTModuleRec\n"); return NULL; } - aoutfile->handle=modrec->handle; - aoutfile->module=modrec->module; - aoutfile->fd=aoutfd; - v=aoutfile->funcs=modrec->funcs; + aoutfile->handle = modrec->handle; + aoutfile->module = modrec->module; + aoutfile->fd = aoutfd; + v = aoutfile->funcs = modrec->funcs; /* * Get the a.out header */ - aoutfile->header=(AOUTHDR *)_LoaderFileToMem(aoutfd,0,sizeof(AOUTHDR), - "header"); - header= (AOUTHDR *)aoutfile->header; + aoutfile->header = + (AOUTHDR *) _LoaderFileToMem(aoutfd, 0, sizeof(AOUTHDR), + "header"); + header = (AOUTHDR *) aoutfile->header; /* * Load the 6 other sections */ /* text */ if (header->a_text != 0) { - aoutfile->text = _LoaderFileToMem(aoutfile->fd, + aoutfile->text = _LoaderFileToMem(aoutfile->fd, AOUT_TXTOFF(header), header->a_text, "text"); aoutfile->textsize = header->a_text; @@ -689,13 +694,13 @@ AOUTLoadModule(loaderPtr modrec, /* Data Relocations */ if (header->a_drsize != 0) { aoutfile->datarel = _LoaderFileToMem(aoutfile->fd, - AOUT_DRELOFF(header), - header->a_drsize, "datarel"); + AOUT_DRELOFF(header), + header->a_drsize, "datarel"); } else { aoutfile->datarel = NULL; } /* String table */ - _LoaderFileRead(aoutfile->fd, AOUT_STROFF(header), + _LoaderFileRead(aoutfile->fd, AOUT_STROFF(header), &(aoutfile->strsize), sizeof(int)); if (aoutfile->strsize != 0) { aoutfile->strings = _LoaderFileToMem(aoutfile->fd, @@ -711,8 +716,7 @@ AOUTLoadModule(loaderPtr modrec, reloc = AOUTCollectRelocations(aoutfile); if (reloc) { - for (tail = reloc; tail->next; tail = tail->next) - ; + for (tail = reloc; tail->next; tail = tail->next) ; tail->next = _LoaderGetRelocations(v)->aout_reloc; _LoaderGetRelocations(v)->aout_reloc = reloc; } @@ -721,8 +725,7 @@ AOUTLoadModule(loaderPtr modrec, } void -AOUTResolveSymbols(mod) -void *mod; +AOUTResolveSymbols(void *mod) { AOUTRelocPtr newlist, p, tmp; @@ -731,7 +734,7 @@ void *mod; #endif newlist = 0; - for (p = _LoaderGetRelocations(mod)->aout_reloc; p; ) { + for (p = _LoaderGetRelocations(mod)->aout_reloc; p;) { tmp = AOUT_RelocateEntry(p->file, p->type, p->rel); if (tmp) { /* Failed to relocate. Keep it in the list. */ @@ -743,11 +746,10 @@ void *mod; xf86loaderfree(tmp); } _LoaderGetRelocations(mod)->aout_reloc = newlist; -} /* AOUTResolveSymbols */ +} /* AOUTResolveSymbols */ int -AOUTCheckForUnresolved(mod) -void *mod; +AOUTCheckForUnresolved(void *mod) { int symnum; AOUTRelocPtr crel; @@ -763,18 +765,20 @@ void *mod; while (crel) { if (crel->type == AOUT_TEXT) { /* Attempt to make unresolved text references - point to a default function */ - AOUT_Relocate((unsigned long *)(crel->file->text - + crel->rel->r_address) , - (unsigned long)LoaderDefaultFunc, + * point to a default function */ + AOUT_Relocate((unsigned long *)(crel->file->text + + crel->rel->r_address), + (unsigned long)LoaderDefaultFunc, crel->rel->r_pcrel); } symnum = crel->rel->r_symbolnum; - name=AOUTGetSymbolName(crel->file, crel->file->symtab + symnum); - flag = _LoaderHandleUnresolved(name, - _LoaderHandleToName(crel->file->handle)); + name = AOUTGetSymbolName(crel->file, crel->file->symtab + symnum); + flag = _LoaderHandleUnresolved(name, + _LoaderHandleToName(crel->file-> + handle)); xf86loaderfree(name); - if (flag) fatalsym = 1; + if (flag) + fatalsym = 1; crel = crel->next; } return fatalsym; @@ -783,8 +787,9 @@ void *mod; void AOUTUnloadModule(void *modptr) { - AOUTModulePtr aoutfile = (AOUTModulePtr)modptr; + AOUTModulePtr aoutfile = (AOUTModulePtr) modptr; AOUTRelocPtr relptr, *prevptr; + #ifdef AOUTDEBUG AOUTDEBUG("AOUTUnLoadModule(0x%p)\n", modptr); #endif @@ -793,8 +798,8 @@ AOUTUnloadModule(void *modptr) * Delete any unresolved relocations */ - relptr=_LoaderGetRelocations(aoutfile->funcs)->aout_reloc; - prevptr=&(_LoaderGetRelocations(aoutfile->funcs)->aout_reloc); + relptr = _LoaderGetRelocations(aoutfile->funcs)->aout_reloc; + prevptr = &(_LoaderGetRelocations(aoutfile->funcs)->aout_reloc); while (relptr) { if (relptr->file == aoutfile) { @@ -805,19 +810,19 @@ AOUTUnloadModule(void *modptr) prevptr = &(relptr->next); relptr = relptr->next; } - } /* while */ - + } /* while */ + /* clean the symbols table */ LoaderHashTraverse((void *)aoutfile, AOUTHashCleanOut); #define CheckandFree(ptr,size) if(ptr) _LoaderFreeFileMem((ptr),(size)) - CheckandFree(aoutfile->strings,aoutfile->strsize); - CheckandFree(aoutfile->symtab,aoutfile->header->a_syms); - CheckandFree(aoutfile->datarel,aoutfile->header->a_drsize); - CheckandFree(aoutfile->txtrel,aoutfile->header->a_trsize); - CheckandFree(aoutfile->data,aoutfile->header->a_data); - CheckandFree(aoutfile->text,aoutfile->header->a_text); + CheckandFree(aoutfile->strings, aoutfile->strsize); + CheckandFree(aoutfile->symtab, aoutfile->header->a_syms); + CheckandFree(aoutfile->datarel, aoutfile->header->a_drsize); + CheckandFree(aoutfile->txtrel, aoutfile->header->a_trsize); + CheckandFree(aoutfile->data, aoutfile->header->a_data); + CheckandFree(aoutfile->text, aoutfile->header->a_text); /* Free allocated sections */ if (aoutfile->bss != NULL) { xf86loaderfree(aoutfile->bss); @@ -838,21 +843,20 @@ AOUTUnloadModule(void *modptr) char * AOUTAddressToSection(void *modptr, unsigned long address) { - AOUTModulePtr aoutfile = (AOUTModulePtr)modptr; - - if( address >= (unsigned long)aoutfile->text && - address <= (unsigned long)aoutfile->text+aoutfile->textsize ) { - return "text"; - } - if( address >= (unsigned long)aoutfile->data && - address <= (unsigned long)aoutfile->data+aoutfile->datasize ) { - return "data"; - } - if( address >= (unsigned long)aoutfile->bss && - address <= (unsigned long)aoutfile->bss+aoutfile->bsssize ) { - return "bss"; - } + AOUTModulePtr aoutfile = (AOUTModulePtr) modptr; + + if (address >= (unsigned long)aoutfile->text && + address <= (unsigned long)aoutfile->text + aoutfile->textsize) { + return "text"; + } + if (address >= (unsigned long)aoutfile->data && + address <= (unsigned long)aoutfile->data + aoutfile->datasize) { + return "data"; + } + if (address >= (unsigned long)aoutfile->bss && + address <= (unsigned long)aoutfile->bss + aoutfile->bsssize) { + return "bss"; + } return NULL; } - |