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Update.
2004-03-10 Richard Henderson <rth@redhat.com> * sysdeps/generic/errno.c: Disable versioning for rtld. * sysdeps/generic/Makefile (elf/shared): Add unwind-pe. * sysdeps/generic/unwind-pe.c: New file. * sysdeps/generic/unwind-pe.h: Only prototypes for _LIBC without _LIBC_DEFINITIONS. * posix/regexec.c: Likewise.
This commit is contained in:
Ulrich Drepper
parent
4a381a81fe
commit
78678039a4
10
ChangeLog
10
ChangeLog
@ -1,3 +1,12 @@
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2004-03-10 Richard Henderson <rth@redhat.com>
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* sysdeps/generic/errno.c: Disable versioning for rtld.
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* sysdeps/generic/Makefile (elf/shared): Add unwind-pe.
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* sysdeps/generic/unwind-pe.c: New file.
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* sysdeps/generic/unwind-pe.h: Only prototypes for _LIBC without
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_LIBC_DEFINITIONS.
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2004-03-10 Ulrich Drepper <drepper@redhat.com>
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* include/libc-symbols.h: Define attribute_compat_text_section and
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@ -35,6 +44,7 @@
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* sysdeps/unix/sysv/linux/i386/semctl.c: Likewise.
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* sysdeps/unix/sysv/linux/i386/shmctl.c: Likewise.
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* sysdeps/unix/sysv/linux/i386/versionsort64.c: Likewise.
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* posix/regexec.c: Likewise.
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* sysdeps/unix/sysv/linux/i386/syscalls.list: vm86@@GLIBC_2.3.4
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should be the default symbol. Having none misses the point.
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@ -247,6 +247,7 @@ versioned_symbol (libc, __regexec, regexec, GLIBC_2_3_4);
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__typeof__ (__regexec) __compat_regexec;
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int
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attribute_compat_text_section
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__compat_regexec (const regex_t *__restrict preg,
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const char *__restrict string, size_t nmatch,
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regmatch_t pmatch[], int eflags)
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@ -38,7 +38,7 @@ endif
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ifeq ($(subdir),elf)
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ifeq (yes:yes,$(build-shared):$(unwind-find-fde))
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# This is needed to support g++ v2 and v3.
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sysdep_routines += framestate
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shared-only-routines += framestate
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sysdep_routines += framestate unwind-pe
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shared-only-routines += framestate unwind-pe
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endif
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endif
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@ -32,9 +32,11 @@ extern __thread int __libc_errno __attribute__ ((alias ("errno")))
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int errno __attribute__ ((section (".bss")));
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strong_alias (errno, _errno)
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/* We declare these with compat_symbol so that they are not
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visible at link time. Programs must use the accessor functions. */
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# if defined HAVE_ELF && defined SHARED && defined DO_VERSIONING
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/* We declare these with compat_symbol so that they are not visible at
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link time. Programs must use the accessor functions. RTLD is special,
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since it's not exported from there at any time. */
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# if defined HAVE_ELF && defined SHARED && defined DO_VERSIONING \
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&& !defined IS_IN_rtld
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# include <shlib-compat.h>
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compat_symbol (libc, errno, errno, GLIBC_2_0);
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compat_symbol (libc, _errno, _errno, GLIBC_2_0);
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5
sysdeps/generic/unwind-pe.c
Normal file
5
sysdeps/generic/unwind-pe.c
Normal file
@ -0,0 +1,5 @@
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#include <stdlib.h>
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#include <unwind.h>
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#define _LIBC_DEFINITIONS
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#include "unwind-pe.h"
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@ -52,23 +52,43 @@
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#define DW_EH_PE_indirect 0x80
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#if defined(_LIBC) && !defined(NO_BASE_OF_ENCODED_VALUE)
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#if defined(_LIBC)
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/* Prototypes. */
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extern unsigned int size_of_encoded_value (unsigned char encoding);
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extern unsigned int size_of_encoded_value (unsigned char encoding)
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attribute_hidden;
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extern const unsigned char *read_encoded_value_with_base
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(unsigned char encoding, _Unwind_Ptr base,
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const unsigned char *p, _Unwind_Ptr *val);
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const unsigned char *p, _Unwind_Ptr *val)
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attribute_hidden;
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extern const unsigned char * read_encoded_value
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(struct _Unwind_Context *context, unsigned char encoding,
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const unsigned char *p, _Unwind_Ptr *val)
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attribute_hidden;
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extern const unsigned char * read_uleb128 (const unsigned char *p,
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_Unwind_Word *val)
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attribute_hidden;
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extern const unsigned char * read_sleb128 (const unsigned char *p,
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_Unwind_Sword *val)
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attribute_hidden;
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#endif
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#if defined(_LIBC) && defined(_LIBC_DEFINITIONS)
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#ifdef _LIBC
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#define STATIC
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#else
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#define STATIC static
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#endif
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/* Given an encoding, return the number of bytes the format occupies.
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This is only defined for fixed-size encodings, and so does not
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include leb128. */
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# ifndef _LIBC
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static
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# endif
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unsigned int
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STATIC unsigned int
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size_of_encoded_value (unsigned char encoding)
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{
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if (encoding == DW_EH_PE_omit)
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@ -87,7 +107,6 @@ size_of_encoded_value (unsigned char encoding)
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}
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__gxx_abort ();
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}
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#endif
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#ifndef NO_BASE_OF_ENCODED_VALUE
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@ -96,7 +115,7 @@ size_of_encoded_value (unsigned char encoding)
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read_encoded_value_with_base for use when the _Unwind_Context is
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not available. */
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static _Unwind_Ptr
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STATIC _Unwind_Ptr
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base_of_encoded_value (unsigned char encoding, struct _Unwind_Context *context)
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{
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if (encoding == DW_EH_PE_omit)
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@ -126,7 +145,7 @@ base_of_encoded_value (unsigned char encoding, struct _Unwind_Context *context)
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hold any value so encoded; if it is smaller than a pointer on some target,
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pointers should not be leb128 encoded on that target. */
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static const unsigned char *
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STATIC const unsigned char *
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read_uleb128 (const unsigned char *p, _Unwind_Word *val)
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{
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unsigned int shift = 0;
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@ -148,7 +167,7 @@ read_uleb128 (const unsigned char *p, _Unwind_Word *val)
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/* Similar, but read a signed leb128 value. */
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static const unsigned char *
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STATIC const unsigned char *
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read_sleb128 (const unsigned char *p, _Unwind_Sword *val)
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{
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unsigned int shift = 0;
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@ -172,15 +191,11 @@ read_sleb128 (const unsigned char *p, _Unwind_Sword *val)
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return p;
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}
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#if !(defined(_LIBC) && !defined(NO_BASE_OF_ENCODED_VALUE))
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/* Load an encoded value from memory at P. The value is returned in VAL;
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The function returns P incremented past the value. BASE is as given
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by base_of_encoded_value for this encoding in the appropriate context. */
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# ifndef _LIBC
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static
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# endif
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const unsigned char *
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STATIC const unsigned char *
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read_encoded_value_with_base (unsigned char encoding, _Unwind_Ptr base,
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const unsigned char *p, _Unwind_Ptr *val)
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{
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@ -272,14 +287,13 @@ read_encoded_value_with_base (unsigned char encoding, _Unwind_Ptr base,
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*val = result;
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return p;
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}
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#endif
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#ifndef NO_BASE_OF_ENCODED_VALUE
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/* Like read_encoded_value_with_base, but get the base from the context
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rather than providing it directly. */
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static inline const unsigned char *
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STATIC const unsigned char *
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read_encoded_value (struct _Unwind_Context *context, unsigned char encoding,
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const unsigned char *p, _Unwind_Ptr *val)
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{
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@ -289,3 +303,4 @@ read_encoded_value (struct _Unwind_Context *context, unsigned char encoding,
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}
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#endif
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#endif /* _LIBC */
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