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Tue Jun 11 23:23:30 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>

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* Makerules (LDFLAGS-c.so): Use __libc_main instead of
	__libc_print_version as entry point for shared object.
	* version.c [HAVE_ELF] (__libc_main): New function.

	* elf/dl-load.c (_dl_map_object_from_fd): Relocate l_entry with the
	load address.
This commit is contained in:
Roland McGrath
1996-06-12 04:00:32 +00:00
parent 8d6468d0c8
commit 463e148b75
4 changed files with 26 additions and 1 deletions
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9
ChangeLog
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@ -1,3 +1,12 @@
Tue Jun 11 23:23:30 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* Makerules (LDFLAGS-c.so): Use __libc_main instead of
__libc_print_version as entry point for shared object.
* version.c [HAVE_ELF] (__libc_main): New function.
* elf/dl-load.c (_dl_map_object_from_fd): Relocate l_entry with the
load address.
Tue Jun 11 19:13:04 1996 Richard Henderson <rth@tamu.edu> Tue Jun 11 19:13:04 1996 Richard Henderson <rth@tamu.edu>
* elf/dl-close.c: Include <string.h> for memcpy. * elf/dl-close.c: Include <string.h> for memcpy.

2
Makerules
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@ -491,7 +491,7 @@ endef
# since we define our own `.init' section specially. # since we define our own `.init' section specially.
LDFLAGS-c.so = -nostdlib -nostartfiles LDFLAGS-c.so = -nostdlib -nostartfiles
# Give libc.so an entry point and make it directly runnable itself. # Give libc.so an entry point and make it directly runnable itself.
LDFLAGS-c.so += -e __libc_print_version LDFLAGS-c.so += -e __libc_main
# Use our own special initializer and finalizer files for libc.so. # Use our own special initializer and finalizer files for libc.so.
elfobjdir := $(firstword $(objdir) $(patsubst ../$(subdir),.,$(..)elf)) elfobjdir := $(firstword $(objdir) $(patsubst ../$(subdir),.,$(..)elf))
$(common-objpfx)libc.so: $(elfobjdir)/soinit.so \ $(common-objpfx)libc.so: $(elfobjdir)/soinit.so \

2
elf/dl-load.c
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@ -357,6 +357,8 @@ _dl_map_object_from_fd (const char *name, int fd, char *realname,
l->l_phdr = (void *) ((const ElfW(Ehdr) *) l->l_addr)->e_phoff; l->l_phdr = (void *) ((const ElfW(Ehdr) *) l->l_addr)->e_phoff;
(ElfW(Addr)) l->l_phdr += l->l_addr; (ElfW(Addr)) l->l_phdr += l->l_addr;
l->l_entry += l->l_addr;
elf_get_dynamic_info (l->l_ld, l->l_info); elf_get_dynamic_info (l->l_ld, l->l_info);
if (l->l_info[DT_HASH]) if (l->l_info[DT_HASH])
_dl_setup_hash (l); _dl_setup_hash (l);

14
version.c
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@ -36,6 +36,20 @@ This is free software; see the source for copying conditions.\n\
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A\n\ There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A\n\
PARTICULAR PURPOSE."); PARTICULAR PURPOSE.");
} }
#ifdef HAVE_ELF
/* This function is the entry point for the shared object.
Running the library as a program will get here. */
#include <stdlib.h>
void
__libc_main (void)
{
__libc_print_version ();
exit (0);
}
#endif
/* /*
Local Variables: Local Variables: