#include "PosixSource.h"
#endif
-// Linux needs _GNU_SOURCE to get RTLD_DEFAULT from <dlfcn.h>.
+/* Linux needs _GNU_SOURCE to get RTLD_DEFAULT from <dlfcn.h> and
+ MREMAP_MAYMOVE from <sys/mman.h>.
+ */
#ifdef __linux__
#define _GNU_SOURCE
#endif
#include <sys/stat.h>
#endif
-#if defined(HAVE_FRAMEWORK_HASKELLSUPPORT)
-#include <HaskellSupport/dlfcn.h>
-#elif defined(HAVE_DLFCN_H)
+#if defined(HAVE_DLFCN_H)
#include <dlfcn.h>
#endif
-#if defined(cygwin32_TARGET_OS)
+#if defined(cygwin32_HOST_OS)
#ifdef HAVE_DIRENT_H
#include <dirent.h>
#endif
#include <sys/wait.h>
#endif
-#if defined(ia64_TARGET_ARCH) || defined(openbsd_TARGET_OS)
+#if defined(ia64_HOST_ARCH) || defined(openbsd_HOST_OS) || defined(linux_HOST_OS) || defined(freebsd_HOST_OS)
#define USE_MMAP
#include <fcntl.h>
#include <sys/mman.h>
-#if defined(openbsd_TARGET_OS)
+#if defined(openbsd_HOST_OS) || defined(linux_HOST_OS) || defined(freebsd_HOST_OS)
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#endif
-#if defined(linux_TARGET_OS) || defined(solaris2_TARGET_OS) || defined(freebsd_TARGET_OS) || defined(netbsd_TARGET_OS) || defined(openbsd_TARGET_OS)
+#if defined(linux_HOST_OS) || defined(solaris2_HOST_OS) || defined(freebsd_HOST_OS) || defined(netbsd_HOST_OS) || defined(openbsd_HOST_OS)
# define OBJFORMAT_ELF
-#elif defined(cygwin32_TARGET_OS) || defined (mingw32_TARGET_OS)
+#elif defined(cygwin32_HOST_OS) || defined (mingw32_HOST_OS)
# define OBJFORMAT_PEi386
# include <windows.h>
# include <math.h>
-#elif defined(darwin_TARGET_OS)
+#elif defined(darwin_HOST_OS)
# include <mach-o/ppc/reloc.h>
# define OBJFORMAT_MACHO
# include <mach-o/loader.h>
static int ocVerifyImage_ELF ( ObjectCode* oc );
static int ocGetNames_ELF ( ObjectCode* oc );
static int ocResolve_ELF ( ObjectCode* oc );
-#if defined(powerpc_TARGET_ARCH)
+#if defined(powerpc_HOST_ARCH)
static int ocAllocateJumpIslands_ELF ( ObjectCode* oc );
#endif
#elif defined(OBJFORMAT_PEi386)
#define Maybe_Stable_Names
#endif
-#if !defined (mingw32_TARGET_OS)
+#if !defined (mingw32_HOST_OS)
#define RTS_POSIX_ONLY_SYMBOLS \
SymX(stg_sig_install) \
Sym(nocldstop)
#endif
-#if defined (cygwin32_TARGET_OS)
+#if defined (cygwin32_HOST_OS)
#define RTS_MINGW_ONLY_SYMBOLS /**/
/* Don't have the ability to read import libs / archives, so
* we have to stupidly list a lot of what libcygwin.a
SymX(utime) \
SymX(waitpid)
-#elif !defined(mingw32_TARGET_OS)
+#elif !defined(mingw32_HOST_OS)
#define RTS_MINGW_ONLY_SYMBOLS /**/
#define RTS_CYGWIN_ONLY_SYMBOLS /**/
-#else /* defined(mingw32_TARGET_OS) */
+#else /* defined(mingw32_HOST_OS) */
#define RTS_POSIX_ONLY_SYMBOLS /**/
#define RTS_CYGWIN_ONLY_SYMBOLS /**/
SymX(log) \
SymX(sqrt) \
SymX(memcpy) \
+ SymX(stg_InstallConsoleEvent) \
Sym(mktime) \
Sym(_imp___timezone) \
Sym(_imp___tzname) \
SymX(__int_encodeDouble) \
SymX(__int_encodeFloat) \
SymX(andIntegerzh_fast) \
+ SymX(atomicallyzh_fast) \
SymX(barf) \
+ SymX(debugBelch) \
+ SymX(errorBelch) \
SymX(blockAsyncExceptionszh_fast) \
SymX(catchzh_fast) \
+ SymX(catchRetryzh_fast) \
+ SymX(catchSTMzh_fast) \
SymX(closure_flags) \
SymX(cmp_thread) \
SymX(cmpIntegerzh_fast) \
SymX(genericRaise) \
SymX(getProgArgv) \
SymX(getStablePtr) \
- SymX(initLinker) \
+ SymX(hs_init) \
+ SymX(hs_exit) \
+ SymX(hs_set_argv) \
+ SymX(hs_add_root) \
+ SymX(hs_perform_gc) \
+ SymX(hs_free_stable_ptr) \
+ SymX(hs_free_fun_ptr) \
+ SymX(initLinker) \
SymX(int2Integerzh_fast) \
SymX(integer2Intzh_fast) \
SymX(integer2Wordzh_fast) \
SymX_redirect(newCAF, newDynCAF) \
SymX(newMVarzh_fast) \
SymX(newMutVarzh_fast) \
+ SymX(newTVarzh_fast) \
SymX(atomicModifyMutVarzh_fast) \
SymX(newPinnedByteArrayzh_fast) \
SymX(orIntegerzh_fast) \
SymX(quotRemIntegerzh_fast) \
SymX(raisezh_fast) \
SymX(raiseIOzh_fast) \
+ SymX(readTVarzh_fast) \
SymX(remIntegerzh_fast) \
SymX(resetNonBlockingFd) \
SymX(resumeThread) \
SymX(resolveObjs) \
+ SymX(retryzh_fast) \
SymX(rts_apply) \
SymX(rts_checkSchedStatus) \
SymX(rts_eval) \
SymX(stg_IND_STATIC_info) \
SymX(stg_INTLIKE_closure) \
SymX(stg_MUT_ARR_PTRS_FROZEN_info) \
+ SymX(stg_MUT_ARR_PTRS_FROZEN0_info) \
SymX(stg_WEAK_info) \
SymX(stg_ap_0_info) \
SymX(stg_ap_v_info) \
SymX(waitReadzh_fast) \
SymX(waitWritezh_fast) \
SymX(word2Integerzh_fast) \
+ SymX(writeTVarzh_fast) \
SymX(xorIntegerzh_fast) \
SymX(yieldzh_fast)
Sym(__udivdi3) \
Sym(__moddi3) \
Sym(__umoddi3) \
+ Sym(__muldi3) \
Sym(__ashldi3) \
Sym(__ashrdi3) \
Sym(__lshrdi3) \
Sym(__eprintf)
-#elif defined(ia64_TARGET_ARCH)
+#elif defined(ia64_HOST_ARCH)
#define RTS_LIBGCC_SYMBOLS \
Sym(__divdi3) \
Sym(__udivdi3) \
#define RTS_LIBGCC_SYMBOLS
#endif
-#ifdef darwin_TARGET_OS
+#ifdef darwin_HOST_OS
// Symbols that don't have a leading underscore
// on Mac OS X. They have to receive special treatment,
// see machoInitSymbolsWithoutUnderscore()
#endif
/* dlopen(NULL,..) doesn't work so we grab libc explicitly */
-#if defined(openbsd_TARGET_OS)
+#if defined(openbsd_HOST_OS)
static void *dl_libc_handle;
#endif
dl_prog_handle = RTLD_DEFAULT;
# else
dl_prog_handle = dlopen(NULL, RTLD_LAZY);
-# if defined(openbsd_TARGET_OS)
+# if defined(openbsd_HOST_OS)
dl_libc_handle = dlopen("libc.so", RTLD_LAZY);
# endif
# endif // RTLD_DEFAULT
if (val == NULL) {
# if defined(OBJFORMAT_ELF)
-# if defined(openbsd_TARGET_OS)
+# if defined(openbsd_HOST_OS)
val = dlsym(dl_prog_handle, lbl);
return (val != NULL) ? val : dlsym(dl_libc_handle,lbl);
# else /* not openbsd */
}
#endif
-#ifdef ia64_TARGET_ARCH
+#ifdef ia64_HOST_ARCH
static unsigned int PLTSize(void);
#endif
/* On many architectures malloc'd memory isn't executable, so we need to use mmap. */
-#if defined(openbsd_TARGET_OS)
+#if defined(openbsd_HOST_OS)
fd = open(path, O_RDONLY, S_IRUSR);
#else
fd = open(path, O_RDONLY);
pagesize = getpagesize();
-#ifdef ia64_TARGET_ARCH
+#ifdef ia64_HOST_ARCH
/* The PLT needs to be right before the object */
n = ROUND_UP(PLTSize(), pagesize);
oc->plt = mmap(NULL, n, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
# if defined(OBJFORMAT_MACHO)
r = ocAllocateJumpIslands_MachO ( oc );
if (!r) { return r; }
-# elif defined(OBJFORMAT_ELF) && defined(powerpc_TARGET_ARCH)
+# elif defined(OBJFORMAT_ELF) && defined(powerpc_HOST_ARCH)
r = ocAllocateJumpIslands_ELF ( oc );
if (!r) { return r; }
#endif
* PowerPC specifics (jump islands)
* ------------------------------------------------------------------------*/
-#if defined(powerpc_TARGET_ARCH)
+#if defined(powerpc_HOST_ARCH)
/*
ocAllocateJumpIslands
static int ocAllocateJumpIslands( ObjectCode* oc, int count, int first )
{
+#ifdef USE_MMAP
+ int pagesize, n, m;
+#endif
int aligned;
if( count > 0 )
{
-#ifdef USE_MMAP
- #error ocAllocateJumpIslands doesnt want USE_MMAP to be defined
-#endif
// round up to the nearest 4
aligned = (oc->fileSize + 3) & ~3;
+#ifdef USE_MMAP
+ #ifndef linux_HOST_OS /* mremap is a linux extension */
+ #error ocAllocateJumpIslands doesnt want USE_MMAP to be defined
+ #endif
+
+ pagesize = getpagesize();
+ n = ROUND_UP( oc->fileSize, pagesize );
+ m = ROUND_UP( aligned + sizeof (ppcJumpIsland) * count, pagesize );
+
+ /* The effect of this mremap() call is only the ensure that we have
+ * a sufficient number of virtually contiguous pages. As returned from
+ * mremap, the pages past the end of the file are not backed. We give
+ * them a backing by using MAP_FIXED to map in anonymous pages.
+ */
+ if( (oc->image = mremap( oc->image, n, m, MREMAP_MAYMOVE )) == MAP_FAILED )
+ {
+ errorBelch( "Unable to mremap for Jump Islands\n" );
+ return 0;
+ }
+
+ if( mmap( oc->image + n, m - n, PROT_READ | PROT_WRITE | PROT_EXEC,
+ MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED, 0, 0 ) == MAP_FAILED )
+ {
+ errorBelch( "Unable to mmap( MAP_FIXED ) for Jump Islands\n" );
+ return 0;
+ }
+
+#else
oc->image = stgReallocBytes( oc->image,
- aligned + sizeof( ppcJumpIsland ) * count,
+ aligned + sizeof (ppcJumpIsland) * count,
"ocAllocateJumpIslands" );
- oc->jump_islands = (ppcJumpIsland *) (((char *) oc->image) + aligned);
- memset( oc->jump_islands, 0, sizeof( ppcJumpIsland ) * count );
+#endif /* USE_MMAP */
+
+ oc->jump_islands = (ppcJumpIsland *) (oc->image + aligned);
+ memset( oc->jump_islands, 0, sizeof (ppcJumpIsland) * count );
}
else
oc->jump_islands = NULL;
#define FALSE 0
#define TRUE 1
-#if defined(sparc_TARGET_ARCH)
+#if defined(sparc_HOST_ARCH)
# define ELF_TARGET_SPARC /* Used inside <elf.h> */
-#elif defined(i386_TARGET_ARCH)
+#elif defined(i386_HOST_ARCH)
# define ELF_TARGET_386 /* Used inside <elf.h> */
-#elif defined(x86_64_TARGET_ARCH)
+#elif defined(x86_64_HOST_ARCH)
# define ELF_TARGET_X64_64
# define ELF_64BIT
-#elif defined (ia64_TARGET_ARCH)
+#elif defined (ia64_HOST_ARCH)
# define ELF_TARGET_IA64 /* Used inside <elf.h> */
# define ELF_64BIT
# define ELF_FUNCTION_DESC /* calling convention uses function descriptors */
# define ELF_NEED_PLT /* needs Procedure Linkage Tables */
#endif
-#if !defined(openbsd_TARGET_OS)
+#if !defined(openbsd_HOST_OS)
#include <elf.h>
#else
/* openbsd elf has things in different places, with diff names */
#endif
#ifdef ELF_NEED_PLT
-#ifdef ia64_TARGET_ARCH
+#ifdef ia64_HOST_ARCH
static void ia64_reloc_gprel22(Elf_Addr target, Elf_Addr value);
static void ia64_reloc_pcrel21(Elf_Addr target, Elf_Addr value, ObjectCode *oc);
return ptr;
}
-#if defined(ia64_TARGET_ARCH)
+#if defined(ia64_HOST_ARCH)
static Elf_Addr
findElfSegment ( void* objImage, Elf_Addr vaddr )
{
}
if (ehdr->e_ident[EI_DATA] == ELFDATA2LSB) {
- IF_DEBUG(linker,debugBelch( "Is little-endian" ));
+ IF_DEBUG(linker,debugBelch( "Is little-endian\n" ));
} else
if (ehdr->e_ident[EI_DATA] == ELFDATA2MSB) {
- IF_DEBUG(linker,debugBelch( "Is big-endian" ));
+ IF_DEBUG(linker,debugBelch( "Is big-endian\n" ));
} else {
errorBelch("%s: unknown endiannness", oc->fileName);
return 0;
errorBelch("%s: not a relocatable object (.o) file", oc->fileName);
return 0;
}
- IF_DEBUG(linker, debugBelch( "Is a relocatable object (.o) file" ));
+ IF_DEBUG(linker, debugBelch( "Is a relocatable object (.o) file\n" ));
IF_DEBUG(linker,debugBelch( "Architecture is " ));
switch (ehdr->e_machine) {
}
IF_DEBUG(linker,debugBelch(
- "\nSection header table: start %d, n_entries %d, ent_size %d",
+ "\nSection header table: start %d, n_entries %d, ent_size %d\n",
ehdr->e_shoff, ehdr->e_shnum, ehdr->e_shentsize ));
ASSERT (ehdr->e_shentsize == sizeof(Elf_Shdr));
errorBelch("%s: no section header string table", oc->fileName);
return 0;
} else {
- IF_DEBUG(linker,debugBelch( "Section header string table is section %d",
+ IF_DEBUG(linker,debugBelch( "Section header string table is section %d\n",
ehdr->e_shstrndx));
sh_strtab = ehdrC + shdr[ehdr->e_shstrndx].sh_offset;
}
IF_DEBUG(linker,debugBelch( "\nSymbol tables" ));
for (i = 0; i < ehdr->e_shnum; i++) {
if (shdr[i].sh_type != SHT_SYMTAB) continue;
- IF_DEBUG(linker,debugBelch( "section %d is a symbol table", i ));
+ IF_DEBUG(linker,debugBelch( "section %d is a symbol table\n", i ));
nsymtabs++;
stab = (Elf_Sym*) (ehdrC + shdr[i].sh_offset);
nent = shdr[i].sh_size / sizeof(Elf_Sym);
- IF_DEBUG(linker,debugBelch( " number of entries is apparently %d (%d rem)",
+ IF_DEBUG(linker,debugBelch( " number of entries is apparently %d (%d rem)\n",
nent,
shdr[i].sh_size % sizeof(Elf_Sym)
));
return 1;
}
+static int getSectionKind_ELF( Elf_Shdr *hdr, int *is_bss )
+{
+ *is_bss = FALSE;
+
+ if (hdr->sh_type == SHT_PROGBITS
+ && (hdr->sh_flags & SHF_ALLOC) && (hdr->sh_flags & SHF_EXECINSTR)) {
+ /* .text-style section */
+ return SECTIONKIND_CODE_OR_RODATA;
+ }
+
+ if (hdr->sh_type == SHT_PROGBITS
+ && (hdr->sh_flags & SHF_ALLOC) && (hdr->sh_flags & SHF_WRITE)) {
+ /* .data-style section */
+ return SECTIONKIND_RWDATA;
+ }
+
+ if (hdr->sh_type == SHT_PROGBITS
+ && (hdr->sh_flags & SHF_ALLOC) && !(hdr->sh_flags & SHF_WRITE)) {
+ /* .rodata-style section */
+ return SECTIONKIND_CODE_OR_RODATA;
+ }
+
+ if (hdr->sh_type == SHT_NOBITS
+ && (hdr->sh_flags & SHF_ALLOC) && (hdr->sh_flags & SHF_WRITE)) {
+ /* .bss-style section */
+ *is_bss = TRUE;
+ return SECTIONKIND_RWDATA;
+ }
+
+ return SECTIONKIND_OTHER;
+}
+
static int
ocGetNames_ELF ( ObjectCode* oc )
/* Figure out what kind of section it is. Logic derived from
Figure 1.14 ("Special Sections") of the ELF document
("Portable Formats Specification, Version 1.1"). */
- Elf_Shdr hdr = shdr[i];
- SectionKind kind = SECTIONKIND_OTHER;
int is_bss = FALSE;
-
- if (hdr.sh_type == SHT_PROGBITS
- && (hdr.sh_flags & SHF_ALLOC) && (hdr.sh_flags & SHF_EXECINSTR)) {
- /* .text-style section */
- kind = SECTIONKIND_CODE_OR_RODATA;
- }
- else
- if (hdr.sh_type == SHT_PROGBITS
- && (hdr.sh_flags & SHF_ALLOC) && (hdr.sh_flags & SHF_WRITE)) {
- /* .data-style section */
- kind = SECTIONKIND_RWDATA;
- }
- else
- if (hdr.sh_type == SHT_PROGBITS
- && (hdr.sh_flags & SHF_ALLOC) && !(hdr.sh_flags & SHF_WRITE)) {
- /* .rodata-style section */
- kind = SECTIONKIND_CODE_OR_RODATA;
- }
- else
- if (hdr.sh_type == SHT_NOBITS
- && (hdr.sh_flags & SHF_ALLOC) && (hdr.sh_flags & SHF_WRITE)) {
- /* .bss-style section */
- kind = SECTIONKIND_RWDATA;
- is_bss = TRUE;
- }
+ SectionKind kind = getSectionKind_ELF(&shdr[i], &is_bss);
if (is_bss && shdr[i].sh_size > 0) {
/* This is a non-empty .bss section. Allocate zeroed space for
}
} else {
/* Skip. */
- IF_DEBUG(linker,debugBelch( "skipping `%s'",
+ IF_DEBUG(linker,debugBelch( "skipping `%s'\n",
strtab + stab[j].st_name ));
/*
debugBelch(
stab = (Elf_Sym*) (ehdrC + shdr[ symtab_shndx ].sh_offset);
targ = (Elf_Word*)(ehdrC + shdr[ target_shndx ].sh_offset);
- IF_DEBUG(linker,debugBelch( "relocations for section %d using symtab %d",
+ IF_DEBUG(linker,debugBelch( "relocations for section %d using symtab %d\n",
target_shndx, symtab_shndx ));
+ /* Skip sections that we're not interested in. */
+ {
+ int is_bss;
+ SectionKind kind = getSectionKind_ELF(&shdr[target_shndx], &is_bss);
+ if (kind == SECTIONKIND_OTHER) {
+ IF_DEBUG(linker,debugBelch( "skipping (target section not loaded)"));
+ return 1;
+ }
+ }
+
for (j = 0; j < nent; j++) {
Elf_Addr offset = rtab[j].r_offset;
Elf_Addr info = rtab[j].r_info;
errorBelch("%s: unknown symbol `%s'", oc->fileName, symbol);
return 0;
}
- IF_DEBUG(linker,debugBelch( "`%s' resolves to %p", symbol, (void*)S ));
+ IF_DEBUG(linker,debugBelch( "`%s' resolves to %p\n", symbol, (void*)S ));
}
- IF_DEBUG(linker,debugBelch( "Reloc: P = %p S = %p A = %p",
+ IF_DEBUG(linker,debugBelch( "Reloc: P = %p S = %p A = %p\n",
(void*)P, (void*)S, (void*)A ));
checkProddableBlock ( oc, pP );
value = S + A;
switch (ELF_R_TYPE(info)) {
-# ifdef i386_TARGET_ARCH
+# ifdef i386_HOST_ARCH
case R_386_32: *pP = value; break;
case R_386_PC32: *pP = value - P; break;
# endif
stab = (Elf_Sym*) (ehdrC + shdr[ symtab_shndx ].sh_offset);
targ = (Elf_Addr) (ehdrC + shdr[ target_shndx ].sh_offset);
- IF_DEBUG(linker,debugBelch( "relocations for section %d using symtab %d",
+ IF_DEBUG(linker,debugBelch( "relocations for section %d using symtab %d\n",
target_shndx, symtab_shndx ));
for (j = 0; j < nent; j++) {
-#if defined(DEBUG) || defined(sparc_TARGET_ARCH) || defined(ia64_TARGET_ARCH) || defined(powerpc_TARGET_ARCH)
+#if defined(DEBUG) || defined(sparc_HOST_ARCH) || defined(ia64_HOST_ARCH) || defined(powerpc_HOST_ARCH)
/* This #ifdef only serves to avoid unused-var warnings. */
Elf_Addr offset = rtab[j].r_offset;
Elf_Addr P = targ + offset;
Elf_Addr S;
void* S_tmp;
Elf_Addr value;
-# if defined(sparc_TARGET_ARCH)
+# if defined(sparc_HOST_ARCH)
Elf_Word* pP = (Elf_Word*)P;
Elf_Word w1, w2;
-# elif defined(ia64_TARGET_ARCH)
+# elif defined(ia64_HOST_ARCH)
Elf64_Xword *pP = (Elf64_Xword *)P;
Elf_Addr addr;
-# elif defined(powerpc_TARGET_ARCH)
+# elif defined(powerpc_HOST_ARCH)
Elf_Sword delta;
# endif
value = S + A;
switch (ELF_R_TYPE(info)) {
-# if defined(sparc_TARGET_ARCH)
+# if defined(sparc_HOST_ARCH)
case R_SPARC_WDISP30:
w1 = *pP & 0xC0000000;
w2 = (Elf_Word)((value - P) >> 2);
w2 = (Elf_Word)value;
*pP = w2;
break;
-# elif defined(ia64_TARGET_ARCH)
+# elif defined(ia64_HOST_ARCH)
case R_IA64_DIR64LSB:
case R_IA64_FPTR64LSB:
*pP = value;
/* This goes with R_IA64_LTOFF22X and points to the load to
* convert into a move. We don't implement relaxation. */
break;
-# elif defined(powerpc_TARGET_ARCH)
+# elif defined(powerpc_HOST_ARCH)
case R_PPC_ADDR16_LO:
*(Elf32_Half*) P = value;
break;
char* ehdrC = (char*)(oc->image);
Elf_Ehdr* ehdr = (Elf_Ehdr*) ehdrC;
Elf_Shdr* shdr = (Elf_Shdr*) (ehdrC + ehdr->e_shoff);
- char* sh_strtab = ehdrC + shdr[ehdr->e_shstrndx].sh_offset;
/* first find "the" symbol table */
stab = (Elf_Sym*) findElfSection ( ehdrC, SHT_SYMTAB );
/* Process the relocation sections. */
for (shnum = 0; shnum < ehdr->e_shnum; shnum++) {
-
- /* Skip sections called ".rel.stab". These appear to contain
- relocation entries that, when done, make the stabs debugging
- info point at the right places. We ain't interested in all
- dat jazz, mun. */
- if (0 == memcmp(".rel.stab", sh_strtab + shdr[shnum].sh_name, 9))
- continue;
-
- if (shdr[shnum].sh_type == SHT_REL ) {
+ if (shdr[shnum].sh_type == SHT_REL) {
ok = do_Elf_Rel_relocations ( oc, ehdrC, shdr,
shnum, stab, strtab );
if (!ok) return ok;
freeHashTable(oc->lochash, NULL);
oc->lochash = NULL;
-#if defined(powerpc_TARGET_ARCH)
+#if defined(powerpc_HOST_ARCH)
ocFlushInstructionCache( oc );
#endif
* take care of the most common relocations.
*/
-#ifdef ia64_TARGET_ARCH
+#ifdef ia64_HOST_ARCH
static Elf64_Xword
ia64_extract_instruction(Elf64_Xword *target)
* PowerPC ELF specifics
*/
-#ifdef powerpc_TARGET_ARCH
+#ifdef powerpc_HOST_ARCH
static int ocAllocateJumpIslands_ELF( ObjectCode *oc )
{
unsigned i;
for( i = 0; i < header->ncmds; i++ )
- {
- if( lc->cmd == LC_DYSYMTAB )
+ {
+ if( lc->cmd == LC_SYMTAB )
{
- struct dysymtab_command *dsymLC = (struct dysymtab_command *) lc;
-
- if( !ocAllocateJumpIslands( oc, dsymLC->nundefsym,
- dsymLC->iundefsym ) )
- return 0;
+ // Find out the first and last undefined external
+ // symbol, so we don't have to allocate too many
+ // jump islands.
+ struct symtab_command *symLC = (struct symtab_command *) lc;
+ unsigned min = symLC->nsyms, max = 0;
+ struct nlist *nlist =
+ symLC ? (struct nlist*) ((char*) oc->image + symLC->symoff)
+ : NULL;
+ for(i=0;i<symLC->nsyms;i++)
+ {
+ if(nlist[i].n_type & N_STAB)
+ ;
+ else if(nlist[i].n_type & N_EXT)
+ {
+ if((nlist[i].n_type & N_TYPE) == N_UNDF
+ && (nlist[i].n_value == 0))
+ {
+ if(i < min)
+ min = i;
+ if(i > max)
+ max = i;
+ }
+ }
+ }
+ if(max >= min)
+ return ocAllocateJumpIslands(oc, max - min + 1, min);
- break; // there can be only one LC_DSYMTAB
+ break;
}
+
lc = (struct load_command *) ( ((char *)lc) + lc->cmdsize );
}
- return 1;
+ return ocAllocateJumpIslands(oc,0,0);
}
-static int ocVerifyImage_MachO(ObjectCode* oc)
+static int ocVerifyImage_MachO(ObjectCode* oc STG_UNUSED)
{
// FIXME: do some verifying here
return 1;
return 1;
}
-static char* relocateAddress(
+static unsigned long relocateAddress(
ObjectCode* oc,
int nSections,
struct section* sections,
if(sections[i].addr <= address
&& address < sections[i].addr + sections[i].size)
{
- return oc->image + sections[i].offset + address - sections[i].addr;
+ return (unsigned long)oc->image
+ + sections[i].offset + address - sections[i].addr;
}
}
barf("Invalid Mach-O file:"
"Address out of bounds while relocating object file");
- return NULL;
+ return 0;
}
static int relocateSection(
{
unsigned long word = 0;
unsigned long jumpIsland = 0;
- long offsetToJumpIsland;
+ long offsetToJumpIsland = 0xBADBAD42; // initialise to bad value
+ // to avoid warning and to catch
+ // bugs.
unsigned long* wordPtr = (unsigned long*) (image + sect->offset + reloc->r_address);
checkProddableBlock(oc,wordPtr);
{
struct nlist *symbol = &nlist[reloc->r_symbolnum];
char *nm = image + symLC->stroff + symbol->n_un.n_strx;
- unsigned long symbolAddress = (unsigned long) (lookupSymbol(nm));
+ void *symbolAddress = lookupSymbol(nm);
if(!symbolAddress)
{
errorBelch("\nunknown symbol `%s'", nm);
// In the .o file, this should be a relative jump to NULL
// and we'll change it to a jump to a relative jump to the symbol
ASSERT(-word == reloc->r_address);
- word = symbolAddress;
+ word = (unsigned long) symbolAddress;
jumpIsland = makeJumpIsland(oc,reloc->r_symbolnum,word);
word -= ((long)image) + sect->offset + reloc->r_address;
if(jumpIsland != 0)
}
else
{
- word += symbolAddress;
+ word += (unsigned long) symbolAddress;
}
}
// The branch offset is too large.
// Therefore, we try to use a jump island.
if(jumpIsland == 0)
+ {
barf("unconditional relative branch out of range: "
"no jump island available");
-
+ }
+
word = offsetToJumpIsland;
if((long)word > (long)0x01FFFFFF || (long)word < (long)0xFFE00000)
barf("unconditional relative branch out of range: "
char *image = (char*) oc->image;
struct mach_header *header = (struct mach_header*) image;
struct load_command *lc = (struct load_command*) (image + sizeof(struct mach_header));
- unsigned i,curSymbol;
+ unsigned i,curSymbol = 0;
struct segment_command *segLC = NULL;
struct section *sections;
struct symtab_command *symLC = NULL;
- struct dysymtab_command *dsymLC = NULL;
struct nlist *nlist;
unsigned long commonSize = 0;
char *commonStorage = NULL;
segLC = (struct segment_command*) lc;
else if(lc->cmd == LC_SYMTAB)
symLC = (struct symtab_command*) lc;
- else if(lc->cmd == LC_DYSYMTAB)
- dsymLC = (struct dysymtab_command*) lc;
lc = (struct load_command *) ( ((char*)lc) + lc->cmdsize );
}
sections = (struct section*) (segLC+1);
- nlist = (struct nlist*) (image + symLC->symoff);
+ nlist = symLC ? (struct nlist*) (image + symLC->symoff)
+ : NULL;
for(i=0;i<segLC->nsects;i++)
{
// count external symbols defined here
oc->n_symbols = 0;
- if(dsymLC)
- {
- for(i = dsymLC->iextdefsym;
- i < dsymLC->iextdefsym + dsymLC->nextdefsym;
- i++)
- {
- if((nlist[i].n_type & N_TYPE) == N_SECT)
- oc->n_symbols++;
- }
- }
if(symLC)
{
for(i=0;i<symLC->nsyms;i++)
{
- if((nlist[i].n_type & N_TYPE) == N_UNDF
- && (nlist[i].n_type & N_EXT) && (nlist[i].n_value != 0))
- {
- commonSize += nlist[i].n_value;
- oc->n_symbols++;
- }
+ if(nlist[i].n_type & N_STAB)
+ ;
+ else if(nlist[i].n_type & N_EXT)
+ {
+ if((nlist[i].n_type & N_TYPE) == N_UNDF
+ && (nlist[i].n_value != 0))
+ {
+ commonSize += nlist[i].n_value;
+ oc->n_symbols++;
+ }
+ else if((nlist[i].n_type & N_TYPE) == N_SECT)
+ oc->n_symbols++;
+ }
}
}
oc->symbols = stgMallocBytes(oc->n_symbols * sizeof(char*),
"ocGetNames_MachO(oc->symbols)");
- if(dsymLC)
+ if(symLC)
{
- // insert symbols into hash table
- for(i = dsymLC->iextdefsym, curSymbol = 0;
- i < dsymLC->iextdefsym + dsymLC->nextdefsym;
- i++)
- {
- if((nlist[i].n_type & N_TYPE) == N_SECT)
- {
- char *nm = image + symLC->stroff + nlist[i].n_un.n_strx;
- ghciInsertStrHashTable(oc->fileName, symhash, nm,
- image
- + sections[nlist[i].n_sect-1].offset
- - sections[nlist[i].n_sect-1].addr
- + nlist[i].n_value);
- oc->symbols[curSymbol++] = nm;
- }
- }
-
- // insert local symbols into lochash
- for(i=dsymLC->ilocalsym;i<dsymLC->ilocalsym+dsymLC->nlocalsym;i++)
+ for(i=0;i<symLC->nsyms;i++)
{
- if((nlist[i].n_type & N_TYPE) == N_SECT)
+ if(nlist[i].n_type & N_STAB)
+ ;
+ else if((nlist[i].n_type & N_TYPE) == N_SECT)
{
- char *nm = image + symLC->stroff + nlist[i].n_un.n_strx;
- ghciInsertStrHashTable(oc->fileName, oc->lochash, nm,
- image
- + sections[nlist[i].n_sect-1].offset
- - sections[nlist[i].n_sect-1].addr
- + nlist[i].n_value);
+ if(nlist[i].n_type & N_EXT)
+ {
+ char *nm = image + symLC->stroff + nlist[i].n_un.n_strx;
+ ghciInsertStrHashTable(oc->fileName, symhash, nm,
+ image
+ + sections[nlist[i].n_sect-1].offset
+ - sections[nlist[i].n_sect-1].addr
+ + nlist[i].n_value);
+ oc->symbols[curSymbol++] = nm;
+ }
+ else
+ {
+ char *nm = image + symLC->stroff + nlist[i].n_un.n_strx;
+ ghciInsertStrHashTable(oc->fileName, oc->lochash, nm,
+ image
+ + sections[nlist[i].n_sect-1].offset
+ - sections[nlist[i].n_sect-1].addr
+ + nlist[i].n_value);
+ }
}
}
}
freeHashTable(oc->lochash, NULL);
oc->lochash = NULL;
-#if defined (powerpc_TARGET_ARCH)
+#if defined (powerpc_HOST_ARCH)
ocFlushInstructionCache( oc );
#endif
projects / ghc-hetmet.git / blobdiff