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elf_load_user_image() does now register the loaded image. That is every 

team does have a runtime loader image. The "profile" tool can thus
translate addresses in the runtime loader correctly.
Note that this change will break code that assumes that the application
image is the first image returned by get_next_image_info().


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@27715 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Ingo Weinhold 2008-09-23 21:13:38 +00:00
parent 95d4a71d89
commit 52d0d5e53e
1 changed files with 27 additions and 2 deletions
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29
src/system/kernel/elf.cpp
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@ -1367,6 +1367,11 @@ elf_load_user_image(const char *path, struct team *team, int flags,
if (fd < 0)
return fd;
struct stat st;
status = _kern_read_stat(fd, NULL, false, &st, sizeof(st));
if (status != B_OK)
return status;
// read and verify the ELF header
length = _kern_read(fd, 0, &elfHeader, sizeof(elfHeader));
@ -1428,6 +1433,9 @@ elf_load_user_image(const char *path, struct team *team, int flags,
// map the program's segments into memory
image_info imageInfo;
memset(&imageInfo, 0, sizeof(image_info));
for (i = 0; i < elfHeader.e_phnum; i++) {
char regionName[B_OS_NAME_LENGTH];
char *regionAddress;
@ -1460,6 +1468,9 @@ elf_load_user_image(const char *path, struct team *team, int flags,
goto error;
}
imageInfo.data = regionAddress;
imageInfo.data_size = memUpperBound;
// clean garbage brought by mmap (the region behind the file,
// at least parts of it are the bss and have to be zeroed)
uint32 start = (uint32)regionAddress
@ -1492,9 +1503,11 @@ elf_load_user_image(const char *path, struct team *team, int flags,
// assume ro/text segment
snprintf(regionName, B_OS_NAME_LENGTH, "%s_seg%dro", baseName, i);
size_t segmentSize = ROUNDUP(programHeaders[i].p_memsz
+ (programHeaders[i].p_vaddr % B_PAGE_SIZE), B_PAGE_SIZE);
id = vm_map_file(team->id, regionName, (void **)&regionAddress,
B_EXACT_ADDRESS, ROUNDUP(programHeaders[i].p_memsz
+ (programHeaders[i].p_vaddr % B_PAGE_SIZE), B_PAGE_SIZE),
B_EXACT_ADDRESS, segmentSize,
B_READ_AREA | B_EXECUTE_AREA, REGION_PRIVATE_MAP,
fd, ROUNDOWN(programHeaders[i].p_offset, B_PAGE_SIZE));
if (id < B_OK) {
@ -1502,9 +1515,21 @@ elf_load_user_image(const char *path, struct team *team, int flags,
status = B_NOT_AN_EXECUTABLE;
goto error;
}
imageInfo.text = regionAddress;
imageInfo.text_size = segmentSize;
}
}
// register the loaded image
imageInfo.type = B_LIBRARY_IMAGE;
imageInfo.device = st.st_dev;
imageInfo.node = st.st_ino;
strlcpy(imageInfo.name, path, sizeof(imageInfo.name));
register_image(team, &imageInfo, sizeof(image_info));
// Don't care, if registering fails. It's not crucial.
TRACE(("elf_load: done!\n"));
*entry = elfHeader.e_entry;