Zebediah Figura : dbghelp: Translate the 32-bit Mach-O section header to the 64-bit one.
Module: wine Branch: master Commit: 1dc9bb70cd16fa7b37e8fd6e82ed18311ddfbe38 URL: https://source.winehq.org/git/wine.git/?a=commit;h=1dc9bb70cd16fa7b37e8fd6e8... Author: Zebediah Figura <zfigura(a)codeweavers.com> Date: Thu Jun 14 16:58:17 2018 -0500 dbghelp: Translate the 32-bit Mach-O section header to the 64-bit one. Signed-off-by: Zebediah Figura <zfigura(a)codeweavers.com> Signed-off-by: Alexandre Julliard <julliard(a)winehq.org> --- dlls/dbghelp/image_private.h | 8 +------- dlls/dbghelp/macho_module.c | 43 +++++++++++++++++++++++++++++-------------- 2 files changed, 30 insertions(+), 21 deletions(-) diff --git a/dlls/dbghelp/image_private.h b/dlls/dbghelp/image_private.h index 60cdd35..9990850 100644 --- a/dlls/dbghelp/image_private.h +++ b/dlls/dbghelp/image_private.h @@ -44,12 +44,6 @@ #endif #ifdef HAVE_MACH_O_LOADER_H #include <mach-o/loader.h> - -#ifdef _WIN64 -typedef struct section_64 macho_section; -#else -typedef struct section macho_section; -#endif #endif #define IMAGE_NO_MAP ((void*)-1) @@ -105,7 +99,7 @@ struct image_file_map int num_sections; struct { - const macho_section* section; + struct section_64 section; const char* mapped; unsigned int ignored : 1; }* sect; diff --git a/dlls/dbghelp/macho_module.c b/dlls/dbghelp/macho_module.c index 52ea739..b8f5967 100644 --- a/dlls/dbghelp/macho_module.c +++ b/dlls/dbghelp/macho_module.c @@ -328,7 +328,7 @@ BOOL macho_find_section(struct image_file_map* ifm, const char* segname, const c { struct macho_file_map* fmap; unsigned i; - char tmp[sizeof(fmap->sect[0].section->sectname)]; + char tmp[sizeof(fmap->sect[0].section.sectname)]; /* Other parts of dbghelp use section names like ".eh_frame". Mach-O uses names like "__eh_frame". Convert those. */ @@ -345,8 +345,8 @@ BOOL macho_find_section(struct image_file_map* ifm, const char* segname, const c for (i = 0; i < fmap->num_sections; i++) { if (!fmap->sect[i].ignored && - strcmp(fmap->sect[i].section->sectname, sectname) == 0 && - (!segname || strcmp(fmap->sect[i].section->segname, segname) == 0)) + strcmp(fmap->sect[i].section.sectname, sectname) == 0 && + (!segname || strcmp(fmap->sect[i].section.segname, segname) == 0)) { ism->fmap = ifm; ism->sidx = i; @@ -372,7 +372,7 @@ const char* macho_map_section(struct image_section_map* ism) if (ism->sidx < 0 || ism->sidx >= ism->fmap->u.macho.num_sections || fmap->sect[ism->sidx].ignored) return IMAGE_NO_MAP; - return macho_map_range(fmap, fmap->sect[ism->sidx].section->offset, fmap->sect[ism->sidx].section->size, + return macho_map_range(fmap, fmap->sect[ism->sidx].section.offset, fmap->sect[ism->sidx].section.size, &fmap->sect[ism->sidx].mapped); } @@ -385,8 +385,8 @@ void macho_unmap_section(struct image_section_map* ism) if (ism->sidx >= 0 && ism->sidx < fmap->num_sections && fmap->sect[ism->sidx].mapped != IMAGE_NO_MAP) { - macho_unmap_range(&fmap->sect[ism->sidx].mapped, NULL, fmap, fmap->sect[ism->sidx].section->offset, - fmap->sect[ism->sidx].section->size); + macho_unmap_range(&fmap->sect[ism->sidx].mapped, NULL, fmap, fmap->sect[ism->sidx].section.offset, + fmap->sect[ism->sidx].section.size); } } @@ -398,7 +398,7 @@ DWORD_PTR macho_get_map_rva(const struct image_section_map* ism) if (ism->sidx < 0 || ism->sidx >= ism->fmap->u.macho.num_sections || ism->fmap->u.macho.sect[ism->sidx].ignored) return 0; - return ism->fmap->u.macho.sect[ism->sidx].section->addr - ism->fmap->u.macho.segs_start; + return ism->fmap->u.macho.sect[ism->sidx].section.addr - ism->fmap->u.macho.segs_start; } /****************************************************************** @@ -409,7 +409,7 @@ unsigned macho_get_map_size(const struct image_section_map* ism) if (ism->sidx < 0 || ism->sidx >= ism->fmap->u.macho.num_sections || ism->fmap->u.macho.sect[ism->sidx].ignored) return 0; - return ism->fmap->u.macho.sect[ism->sidx].section->size; + return ism->fmap->u.macho.sect[ism->sidx].section.size; } /****************************************************************** @@ -539,12 +539,12 @@ static int macho_load_section_info(struct image_file_map* ifm, const struct load struct macho_file_map* fmap = &ifm->u.macho; struct section_info* info = user; BOOL ignore; - const macho_section* section; int i; unsigned long tmp, page_mask = sysconf( _SC_PAGESIZE ) - 1; uint64_t vmaddr, vmsize; char segname[16]; uint32_t nsects; + const void *sections; if (ifm->addr_size == 32) { @@ -553,7 +553,7 @@ static int macho_load_section_info(struct image_file_map* ifm, const struct load vmsize = sc->vmsize; memcpy(segname, sc->segname, sizeof(segname)); nsects = sc->nsects; - section = (const macho_section*)(sc + 1); + sections = (const void *)(sc + 1); } else { @@ -562,7 +562,7 @@ static int macho_load_section_info(struct image_file_map* ifm, const struct load vmsize = sc->vmsize; memcpy(segname, sc->segname, sizeof(segname)); nsects = sc->nsects; - section = (const macho_section*)(sc + 1); + sections = (const void *)(sc + 1); } TRACE("(%p/%d, %p, %p) before: 0x%08lx - 0x%08lx\n", fmap, fmap->fd, lc, user, @@ -596,7 +596,22 @@ static int macho_load_section_info(struct image_file_map* ifm, const struct load for (i = 0; i < nsects; i++) { - fmap->sect[info->section_index].section = §ion[i]; + if (ifm->addr_size == 32) + { + const struct section *section = &((const struct section *)sections)[i]; + memcpy(fmap->sect[info->section_index].section.sectname, section->sectname, sizeof(section->sectname)); + memcpy(fmap->sect[info->section_index].section.segname, section->segname, sizeof(section->segname)); + fmap->sect[info->section_index].section.addr = section->addr; + fmap->sect[info->section_index].section.size = section->size; + fmap->sect[info->section_index].section.offset = section->offset; + fmap->sect[info->section_index].section.align = section->align; + fmap->sect[info->section_index].section.reloff = section->reloff; + fmap->sect[info->section_index].section.nreloc = section->nreloc; + fmap->sect[info->section_index].section.flags = section->flags; + } + else + fmap->sect[info->section_index].section = ((const struct section_64 *)sections)[i]; + fmap->sect[info->section_index].mapped = IMAGE_NO_MAP; fmap->sect[info->section_index].ignored = ignore; info->section_index++; @@ -831,8 +846,8 @@ static BOOL macho_sect_is_code(struct macho_file_map* fmap, unsigned char sectid sectidx--; /* convert from 1-based to 0-based */ if (sectidx >= fmap->num_sections || fmap->sect[sectidx].ignored) return FALSE; - ret = (!(fmap->sect[sectidx].section->flags & SECTION_TYPE) && - (fmap->sect[sectidx].section->flags & (S_ATTR_PURE_INSTRUCTIONS|S_ATTR_SOME_INSTRUCTIONS))); + ret = (!(fmap->sect[sectidx].section.flags & SECTION_TYPE) && + (fmap->sect[sectidx].section.flags & (S_ATTR_PURE_INSTRUCTIONS|S_ATTR_SOME_INSTRUCTIONS))); TRACE("-> %d\n", ret); return ret; }
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Alexandre Julliard