gdbserver build-id attribute generator
Producer part of the new "build-id" XML attribute. gdb/ChangeLog 2015-07-15 Aleksandar Ristovski <aristovski@qnx.com Jan Kratochvil <jan.kratochvil@redhat.com> gdbserver build-id attribute generator. * features/library-list-svr4.dtd (library-list-svr4): New 'build-id' attribute. gdb/doc/ChangeLog 2015-07-15 Aleksandar Ristovski <aristovski@qnx.com Jan Kratochvil <jan.kratochvil@redhat.com> gdbserver build-id attribute generator. * gdb.texinfo (Library List Format for SVR4 Targets): Add 'build-id' in description, example, new attribute in dtd. gdb/gdbserver/ChangeLog 2015-07-15 Aleksandar Ristovski <aristovski@qnx.com Jan Kratochvil <jan.kratochvil@redhat.com> gdbserver build-id attribute generator. * linux-low.c (nat/linux-maps.h, search.h, rsp-low.h): Include. (ElfXX_Ehdr, ElfXX_Phdr, ElfXX_Nhdr): New. (ELFXX_FLD, ELFXX_SIZEOF, ELFXX_ROUNDUP, BUILD_ID_INVALID): New. (find_phdr): New. (get_dynamic): Use find_pdhr to traverse program headers. (struct mapping_entry, mapping_entry_s, free_mapping_entry_vec) (compare_mapping_entry_range, struct find_memory_region_callback_data) (read_build_id, find_memory_region_callback, lrfind_mapping_entry) (get_hex_build_id): New. (linux_qxfer_libraries_svr4): Add optional build-id attribute to reply XML document.
This commit is contained in:
Jan Kratochvil
parent
9904185cfd
commit
700ca40f6f
6 changed files with 409 additions and 49 deletions
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@ -1,3 +1,10 @@
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2015-07-15 Aleksandar Ristovski <aristovski@qnx.com
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Jan Kratochvil <jan.kratochvil@redhat.com>
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gdbserver build-id attribute generator.
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* features/library-list-svr4.dtd (library-list-svr4): New
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'build-id' attribute.
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2015-07-15 Aleksandar Ristovski <aristovski@qnx.com
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Jan Kratochvil <jan.kratochvil@redhat.com>
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@ -1,3 +1,10 @@
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2015-07-15 Aleksandar Ristovski <aristovski@qnx.com
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Jan Kratochvil <jan.kratochvil@redhat.com>
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gdbserver build-id attribute generator.
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* gdb.texinfo (Library List Format for SVR4 Targets): Add
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'build-id' in description, example, new attribute in dtd.
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2015-07-08 Andrew Burgess <andrew.burgess@embecosm.com>
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* gdb.texinfo (Selection): Update documentation for 'frame'
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@ -39513,6 +39513,8 @@ memory address. It is a displacement of absolute memory address against
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address the file was prelinked to during the library load.
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@item
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@code{l_ld}, which is memory address of the @code{PT_DYNAMIC} segment
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@item
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@code{build-id}, hex encoded @code{NT_GNU_BUILD_ID} note, if it exists.
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@end itemize
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Additionally the single @code{main-lm} attribute specifies address of
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@ -39530,7 +39532,7 @@ looks like this:
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<library name="/lib/ld-linux.so.2" lm="0xe4f51c" l_addr="0xe2d000"
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l_ld="0xe4eefc"/>
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<library name="/lib/libc.so.6" lm="0xe4fbe8" l_addr="0x154000"
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l_ld="0x152350"/>
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l_ld="0x152350" build-id="9afccf7cc41e6293476223fe72480854"/>
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</library-list-svr>
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@end smallexample
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@ -39539,13 +39541,14 @@ The format of an SVR4 library list is described by this DTD:
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@smallexample
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<!-- library-list-svr4: Root element with versioning -->
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<!ELEMENT library-list-svr4 (library)*>
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<!ATTLIST library-list-svr4 version CDATA #FIXED "1.0">
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<!ATTLIST library-list-svr4 main-lm CDATA #IMPLIED>
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<!ATTLIST library-list-svr4 version CDATA #FIXED "1.0">
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<!ATTLIST library-list-svr4 main-lm CDATA #IMPLIED>
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<!ELEMENT library EMPTY>
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<!ATTLIST library name CDATA #REQUIRED>
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<!ATTLIST library lm CDATA #REQUIRED>
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<!ATTLIST library l_addr CDATA #REQUIRED>
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<!ATTLIST library l_ld CDATA #REQUIRED>
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<!ATTLIST library name CDATA #REQUIRED>
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<!ATTLIST library lm CDATA #REQUIRED>
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<!ATTLIST library l_addr CDATA #REQUIRED>
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<!ATTLIST library l_ld CDATA #REQUIRED>
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<!ATTLIST library build-id CDATA #IMPLIED>
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@end smallexample
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@node Memory Map Format
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@ -6,11 +6,12 @@
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<!-- library-list-svr4: Root element with versioning -->
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<!ELEMENT library-list-svr4 (library)*>
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<!ATTLIST library-list-svr4 version CDATA #FIXED "1.0">
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<!ATTLIST library-list-svr4 main-lm CDATA #IMPLIED>
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<!ATTLIST library-list-svr4 version CDATA #FIXED "1.0">
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<!ATTLIST library-list-svr4 main-lm CDATA #IMPLIED>
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<!ELEMENT library EMPTY>
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<!ATTLIST library name CDATA #REQUIRED>
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<!ATTLIST library lm CDATA #REQUIRED>
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<!ATTLIST library l_addr CDATA #REQUIRED>
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<!ATTLIST library l_ld CDATA #REQUIRED>
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<!ATTLIST library name CDATA #REQUIRED>
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<!ATTLIST library lm CDATA #REQUIRED>
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<!ATTLIST library l_addr CDATA #REQUIRED>
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<!ATTLIST library l_ld CDATA #REQUIRED>
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<!ATTLIST library build-id CDATA #IMPLIED>
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@ -1,3 +1,19 @@
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2015-07-15 Aleksandar Ristovski <aristovski@qnx.com
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Jan Kratochvil <jan.kratochvil@redhat.com>
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gdbserver build-id attribute generator.
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* linux-low.c (nat/linux-maps.h, search.h, rsp-low.h): Include.
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(ElfXX_Ehdr, ElfXX_Phdr, ElfXX_Nhdr): New.
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(ELFXX_FLD, ELFXX_SIZEOF, ELFXX_ROUNDUP, BUILD_ID_INVALID): New.
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(find_phdr): New.
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(get_dynamic): Use find_pdhr to traverse program headers.
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(struct mapping_entry, mapping_entry_s, free_mapping_entry_vec)
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(compare_mapping_entry_range, struct find_memory_region_callback_data)
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(read_build_id, find_memory_region_callback, lrfind_mapping_entry)
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(get_hex_build_id): New.
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(linux_qxfer_libraries_svr4): Add optional build-id attribute
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to reply XML document.
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2015-07-15 Aleksandar Ristovski <aristovski@qnx.com
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Jan Kratochvil <jan.kratochvil@redhat.com>
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@ -22,6 +22,7 @@
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#include "agent.h"
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#include "tdesc.h"
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#include "rsp-low.h"
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#include "nat/linux-maps.h"
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#include "nat/linux-nat.h"
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#include "nat/linux-waitpid.h"
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@ -43,9 +44,11 @@
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#include <sys/stat.h>
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#include <sys/vfs.h>
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#include <sys/uio.h>
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#include <search.h>
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#include "filestuff.h"
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#include "tracepoint.h"
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#include "hostio.h"
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#include "rsp-low.h"
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#ifndef ELFMAG0
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/* Don't include <linux/elf.h> here. If it got included by gdb_proc_service.h
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then ELFMAG0 will have been defined. If it didn't get included by
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@ -182,6 +185,31 @@ lwp_stop_reason (struct lwp_info *lwp)
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return lwp->stop_reason;
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}
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typedef union ElfXX_Ehdr
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{
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Elf32_Ehdr _32;
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Elf64_Ehdr _64;
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} ElfXX_Ehdr;
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typedef union ElfXX_Phdr
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{
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Elf32_Phdr _32;
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Elf64_Phdr _64;
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} ElfXX_Phdr;
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typedef union ElfXX_Nhdr
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{
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Elf32_Nhdr _32;
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Elf64_Nhdr _64;
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} ElfXX_Nhdr;
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#define ELFXX_FLD(elf64, hdr, fld) ((elf64) ? (hdr)._64.fld : (hdr)._32.fld)
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#define ELFXX_SIZEOF(elf64, hdr) ((elf64) ? sizeof ((hdr)._64) \
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: sizeof ((hdr)._32))
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/* Round up to next 4 byte boundary. */
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#define ELFXX_ROUNDUP_4(elf64, what) (((what) + 3) & ~(ULONGEST) 3)
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#define BUILD_ID_INVALID "?"
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/* A list of all unknown processes which receive stop signals. Some
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other process will presumably claim each of these as forked
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children momentarily. */
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@ -6010,15 +6038,38 @@ get_phdr_phnum_from_proc_auxv (const int pid, const int is_elf64,
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return 0;
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}
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/* Linearly traverse pheaders and look for P_TYPE pheader. */
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static const void *
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find_phdr (const int is_elf64, const void *const phdr_begin,
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const void *const phdr_end, const ULONGEST p_type)
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{
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#define PHDR_NEXT(hdrp) ((const void *) ((const gdb_byte *) (hdrp) + \
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ELFXX_SIZEOF (is_elf64, *hdrp)))
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const ElfXX_Phdr *phdr = phdr_begin;
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while (PHDR_NEXT (phdr) <= phdr_end)
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{
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if (ELFXX_FLD (is_elf64, *phdr, p_type) == p_type)
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return phdr;
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phdr = PHDR_NEXT (phdr);
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}
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return NULL;
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#undef PHDR_NEXT
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}
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/* Return &_DYNAMIC (via PT_DYNAMIC) in the inferior, or 0 if not present. */
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static CORE_ADDR
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get_dynamic (const int pid, const int is_elf64)
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{
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CORE_ADDR phdr_memaddr, relocation;
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int num_phdr, i;
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int num_phdr;
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unsigned char *phdr_buf;
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const int phdr_size = is_elf64 ? sizeof (Elf64_Phdr) : sizeof (Elf32_Phdr);
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const ElfXX_Phdr *phdr;
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const int phdr_size = ELFXX_SIZEOF (is_elf64, *phdr);
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if (get_phdr_phnum_from_proc_auxv (pid, is_elf64, &phdr_memaddr, &num_phdr))
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return 0;
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@ -6032,22 +6083,10 @@ get_dynamic (const int pid, const int is_elf64)
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/* Compute relocation: it is expected to be 0 for "regular" executables,
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non-zero for PIE ones. */
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relocation = -1;
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for (i = 0; relocation == -1 && i < num_phdr; i++)
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if (is_elf64)
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{
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Elf64_Phdr *const p = (Elf64_Phdr *) (phdr_buf + i * phdr_size);
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if (p->p_type == PT_PHDR)
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relocation = phdr_memaddr - p->p_vaddr;
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}
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else
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{
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Elf32_Phdr *const p = (Elf32_Phdr *) (phdr_buf + i * phdr_size);
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if (p->p_type == PT_PHDR)
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relocation = phdr_memaddr - p->p_vaddr;
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}
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phdr = find_phdr (is_elf64, phdr_buf, phdr_buf + num_phdr * phdr_size,
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PT_PHDR);
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if (phdr != NULL)
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relocation = phdr_memaddr - ELFXX_FLD (is_elf64, *phdr, p_vaddr);
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if (relocation == -1)
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{
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/* PT_PHDR is optional, but necessary for PIE in general. Fortunately
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@ -6063,23 +6102,11 @@ get_dynamic (const int pid, const int is_elf64)
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return 0;
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}
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for (i = 0; i < num_phdr; i++)
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{
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if (is_elf64)
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{
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Elf64_Phdr *const p = (Elf64_Phdr *) (phdr_buf + i * phdr_size);
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phdr = find_phdr (is_elf64, phdr_buf, phdr_buf + num_phdr * phdr_size,
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PT_DYNAMIC);
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if (p->p_type == PT_DYNAMIC)
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return p->p_vaddr + relocation;
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}
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else
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{
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Elf32_Phdr *const p = (Elf32_Phdr *) (phdr_buf + i * phdr_size);
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if (p->p_type == PT_DYNAMIC)
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return p->p_vaddr + relocation;
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}
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}
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if (phdr != NULL)
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return ELFXX_FLD (is_elf64, *phdr, p_vaddr) + relocation;
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return 0;
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}
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@ -6219,6 +6246,278 @@ struct link_map_offsets
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int l_prev_offset;
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};
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/* Structure for holding a mapping. Only mapping
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containing l_ld can have hex_build_id set. */
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struct mapping_entry
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{
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/* Fields are populated from linux_find_memory_region parameters. */
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ULONGEST vaddr;
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ULONGEST size;
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ULONGEST offset;
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ULONGEST inode;
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/* Hex encoded string allocated using xmalloc, and
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needs to be freed. It can be NULL. */
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char *hex_build_id;
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};
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typedef struct mapping_entry mapping_entry_s;
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DEF_VEC_O(mapping_entry_s);
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/* Free vector of mapping_entry_s objects. */
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static void
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free_mapping_entry_vec (VEC (mapping_entry_s) *lst)
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{
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int ix;
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mapping_entry_s *p;
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for (ix = 0; VEC_iterate (mapping_entry_s, lst, ix, p); ++ix)
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xfree (p->hex_build_id);
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VEC_free (mapping_entry_s, lst);
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}
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/* Used for finding a mapping containing the given
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l_ld passed in K. */
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static int
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compare_mapping_entry_range (const void *const k, const void *const b)
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{
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const ULONGEST key = *(const CORE_ADDR *) k;
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const mapping_entry_s *const p = b;
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if (key < p->vaddr)
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return -1;
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if (key < p->vaddr + p->size)
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return 0;
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return 1;
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}
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struct find_memory_region_callback_data
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{
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unsigned is_elf64;
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/* Return. Must be freed with free_mapping_entry_vec. */
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VEC (mapping_entry_s) *list;
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};
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/* Read build-id from PT_NOTE.
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Argument LOAD_ADDR represents run time virtual address corresponding to
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the beginning of the first loadable segment. L_ADDR is displacement
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as supplied by the dynamic linker. */
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static void
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read_build_id (struct find_memory_region_callback_data *const p,
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mapping_entry_s *const bil, const CORE_ADDR load_addr,
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const CORE_ADDR l_addr)
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{
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const int is_elf64 = p->is_elf64;
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ElfXX_Ehdr ehdr;
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if (linux_read_memory (load_addr, (unsigned char *) &ehdr,
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ELFXX_SIZEOF (is_elf64, ehdr)) == 0
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&& ELFXX_FLD (is_elf64, ehdr, e_ident[EI_MAG0]) == ELFMAG0
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&& ELFXX_FLD (is_elf64, ehdr, e_ident[EI_MAG1]) == ELFMAG1
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&& ELFXX_FLD (is_elf64, ehdr, e_ident[EI_MAG2]) == ELFMAG2
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&& ELFXX_FLD (is_elf64, ehdr, e_ident[EI_MAG3]) == ELFMAG3)
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{
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const ElfXX_Phdr *phdr;
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void *phdr_buf;
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const unsigned e_phentsize = ELFXX_FLD (is_elf64, ehdr, e_phentsize);
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if (ELFXX_FLD (is_elf64, ehdr, e_phnum) >= 100
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|| e_phentsize != ELFXX_SIZEOF (is_elf64, *phdr))
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{
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/* Basic sanity check failed. */
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warning (_("Could not identify program header at %s."),
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paddress (load_addr));
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return;
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}
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phdr_buf = alloca (ELFXX_FLD (is_elf64, ehdr, e_phnum) * e_phentsize);
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if (linux_read_memory (load_addr + ELFXX_FLD (is_elf64, ehdr, e_phoff),
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phdr_buf,
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ELFXX_FLD (is_elf64, ehdr, e_phnum) * e_phentsize)
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!= 0)
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{
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warning (_("Could not read program header at %s."),
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paddress (load_addr));
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return;
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}
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phdr = phdr_buf;
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for (;;)
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{
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gdb_byte *pt_note;
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const gdb_byte *pt_end;
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const ElfXX_Nhdr *nhdr;
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CORE_ADDR note_addr;
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phdr = find_phdr (p->is_elf64, phdr, (gdb_byte *) phdr_buf
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+ ELFXX_FLD (is_elf64, ehdr, e_phnum) * e_phentsize,
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PT_NOTE);
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if (phdr == NULL)
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break;
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pt_note = xmalloc (ELFXX_FLD (is_elf64, *phdr, p_memsz));
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note_addr = ELFXX_FLD (is_elf64, *phdr, p_vaddr) + l_addr;
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if (linux_read_memory (note_addr, pt_note,
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ELFXX_FLD (is_elf64, *phdr, p_memsz)) != 0)
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{
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xfree (pt_note);
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warning (_("Could not read note at address 0x%s"),
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paddress (note_addr));
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break;
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}
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pt_end = pt_note + ELFXX_FLD (is_elf64, *phdr, p_memsz);
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nhdr = (void *) pt_note;
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while ((const gdb_byte *) nhdr < pt_end)
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{
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const size_t namesz
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= ELFXX_ROUNDUP_4 (is_elf64, ELFXX_FLD (is_elf64, *nhdr,
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n_namesz));
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const size_t descsz
|
||||
= ELFXX_ROUNDUP_4 (is_elf64, ELFXX_FLD (is_elf64, *nhdr,
|
||||
n_descsz));
|
||||
const size_t note_sz = (ELFXX_SIZEOF (is_elf64, *nhdr) + namesz
|
||||
+ descsz);
|
||||
|
||||
if (((const gdb_byte *) nhdr + note_sz) > pt_end || note_sz == 0
|
||||
|| descsz == 0)
|
||||
{
|
||||
warning (_("Malformed PT_NOTE at address 0x%s\n"),
|
||||
paddress (note_addr + (gdb_byte *) nhdr - pt_note));
|
||||
break;
|
||||
}
|
||||
if (ELFXX_FLD (is_elf64, *nhdr, n_type) == NT_GNU_BUILD_ID
|
||||
&& ELFXX_FLD (is_elf64, *nhdr, n_namesz) == 4)
|
||||
{
|
||||
const char gnu[4] = "GNU\0";
|
||||
const char *const pname
|
||||
= (char *) nhdr + ELFXX_SIZEOF (is_elf64, *nhdr);
|
||||
|
||||
if (memcmp (pname, gnu, 4) == 0)
|
||||
{
|
||||
const size_t n_descsz = ELFXX_FLD (is_elf64, *nhdr,
|
||||
n_descsz);
|
||||
|
||||
bil->hex_build_id = xmalloc (n_descsz * 2 + 1);
|
||||
bin2hex ((const gdb_byte *) pname + namesz,
|
||||
bil->hex_build_id, n_descsz);
|
||||
xfree (pt_note);
|
||||
return;
|
||||
}
|
||||
}
|
||||
nhdr = (void *) ((gdb_byte *) nhdr + note_sz);
|
||||
}
|
||||
xfree (pt_note);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static linux_find_memory_region_ftype find_memory_region_callback;
|
||||
|
||||
/* Add mapping_entry. See linux_find_memory_ftype for the parameters
|
||||
description. */
|
||||
|
||||
static int
|
||||
find_memory_region_callback (ULONGEST vaddr, ULONGEST size, ULONGEST offset,
|
||||
ULONGEST inode, int read, int write, int exec,
|
||||
int modified, const char *filename, void *data)
|
||||
{
|
||||
if (inode != 0)
|
||||
{
|
||||
struct find_memory_region_callback_data *const p = data;
|
||||
mapping_entry_s bil;
|
||||
|
||||
bil.vaddr = vaddr;
|
||||
bil.size = size;
|
||||
bil.offset = offset;
|
||||
bil.inode = inode;
|
||||
bil.hex_build_id = NULL;
|
||||
|
||||
VEC_safe_push (mapping_entry_s, p->list, &bil);
|
||||
}
|
||||
|
||||
/* Continue the traversal. */
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Linear reverse find starting from RBEGIN towards REND looking for
|
||||
the lowest vaddr mapping of the same inode and zero offset. */
|
||||
|
||||
static mapping_entry_s *
|
||||
lrfind_mapping_entry (mapping_entry_s *const rbegin,
|
||||
const mapping_entry_s *const rend)
|
||||
{
|
||||
mapping_entry_s *p;
|
||||
|
||||
for (p = rbegin - 1; p >= rend; --p)
|
||||
if (p->offset == 0 && p->inode == rbegin->inode)
|
||||
return p;
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* Get build-id for the given L_LD, where L_LD corresponds to
|
||||
link_map.l_ld as specified by the dynamic linker.
|
||||
DATA must point to already filled list of mapping_entry elements.
|
||||
|
||||
If build-id had not been read, read it and cache in corresponding
|
||||
list element.
|
||||
|
||||
Return build_id as stored in the list element corresponding
|
||||
to L_LD.
|
||||
|
||||
NULL may be returned if build-id could not be fetched.
|
||||
|
||||
Returned string must not be freed explicitly. */
|
||||
|
||||
static const char *
|
||||
get_hex_build_id (const CORE_ADDR l_addr, const CORE_ADDR l_ld,
|
||||
struct find_memory_region_callback_data *const data)
|
||||
{
|
||||
mapping_entry_s *bil;
|
||||
|
||||
bil = bsearch (&l_ld, VEC_address (mapping_entry_s, data->list),
|
||||
VEC_length (mapping_entry_s, data->list),
|
||||
sizeof (mapping_entry_s), compare_mapping_entry_range);
|
||||
|
||||
if (bil == NULL)
|
||||
return NULL;
|
||||
|
||||
if (bil->hex_build_id == NULL)
|
||||
{
|
||||
mapping_entry_s *bil_min;
|
||||
|
||||
bil_min = lrfind_mapping_entry (bil, VEC_address (mapping_entry_s,
|
||||
data->list));
|
||||
if (bil_min != NULL)
|
||||
read_build_id (data, bil, bil_min->vaddr, l_addr);
|
||||
else
|
||||
{
|
||||
/* Do not try to find hex_build_id again. */
|
||||
bil->hex_build_id = xstrdup (BUILD_ID_INVALID);
|
||||
warning (_("Could not determine load address; mapping entry with "
|
||||
"offset 0 corresponding to l_ld = 0x%s could not be "
|
||||
"found; build-id can not be used."),
|
||||
paddress (l_ld));
|
||||
}
|
||||
}
|
||||
|
||||
return bil->hex_build_id;
|
||||
}
|
||||
|
||||
/* Construct qXfer:libraries-svr4:read reply. */
|
||||
|
||||
static int
|
||||
|
|
@ -6231,6 +6530,15 @@ linux_qxfer_libraries_svr4 (const char *annex, unsigned char *readbuf,
|
|||
struct process_info_private *const priv = current_process ()->priv;
|
||||
char filename[PATH_MAX];
|
||||
int pid, is_elf64;
|
||||
struct find_memory_region_callback_data data;
|
||||
|
||||
/* COREFILTER_ANON_PRIVATE and COREFILTER_ANON_SHARED do not have an
|
||||
associated file so it is not expected it could have an ELF header. */
|
||||
const enum filterflags filterflags = (COREFILTER_MAPPED_PRIVATE
|
||||
| COREFILTER_MAPPED_SHARED
|
||||
| COREFILTER_ELF_HEADERS
|
||||
| COREFILTER_HUGETLB_PRIVATE
|
||||
| COREFILTER_HUGETLB_SHARED);
|
||||
|
||||
static const struct link_map_offsets lmo_32bit_offsets =
|
||||
{
|
||||
|
|
@ -6273,6 +6581,14 @@ linux_qxfer_libraries_svr4 (const char *annex, unsigned char *readbuf,
|
|||
lmo = is_elf64 ? &lmo_64bit_offsets : &lmo_32bit_offsets;
|
||||
ptr_size = is_elf64 ? 8 : 4;
|
||||
|
||||
data.is_elf64 = is_elf64;
|
||||
data.list = NULL;
|
||||
VEC_reserve (mapping_entry_s, data.list, 16);
|
||||
if (linux_find_memory_regions_full (pid, filterflags,
|
||||
find_memory_region_callback, &data)
|
||||
< 0)
|
||||
warning (_("Finding memory regions failed"));
|
||||
|
||||
while (annex[0] != '\0')
|
||||
{
|
||||
const char *sep;
|
||||
|
|
@ -6379,6 +6695,7 @@ linux_qxfer_libraries_svr4 (const char *annex, unsigned char *readbuf,
|
|||
/* 6x the size for xml_escape_text below. */
|
||||
size_t len = 6 * strlen ((char *) libname);
|
||||
char *name;
|
||||
const char *hex_enc_build_id = NULL;
|
||||
|
||||
if (!header_done)
|
||||
{
|
||||
|
|
@ -6387,7 +6704,11 @@ linux_qxfer_libraries_svr4 (const char *annex, unsigned char *readbuf,
|
|||
header_done = 1;
|
||||
}
|
||||
|
||||
while (allocated < p - document + len + 200)
|
||||
hex_enc_build_id = get_hex_build_id (l_addr, l_ld, &data);
|
||||
|
||||
while (allocated < (p - document + len + 200
|
||||
+ (hex_enc_build_id != NULL
|
||||
? strlen (hex_enc_build_id) : 0)))
|
||||
{
|
||||
/* Expand to guarantee sufficient storage. */
|
||||
uintptr_t document_len = p - document;
|
||||
|
|
@ -6399,9 +6720,13 @@ linux_qxfer_libraries_svr4 (const char *annex, unsigned char *readbuf,
|
|||
|
||||
name = xml_escape_text ((char *) libname);
|
||||
p += sprintf (p, "<library name=\"%s\" lm=\"0x%lx\" "
|
||||
"l_addr=\"0x%lx\" l_ld=\"0x%lx\"/>",
|
||||
"l_addr=\"0x%lx\" l_ld=\"0x%lx\"",
|
||||
name, (unsigned long) lm_addr,
|
||||
(unsigned long) l_addr, (unsigned long) l_ld);
|
||||
if (hex_enc_build_id != NULL
|
||||
&& strcmp (hex_enc_build_id, BUILD_ID_INVALID) != 0)
|
||||
p += sprintf (p, " build-id=\"%s\"", hex_enc_build_id);
|
||||
p += sprintf (p, "/>");
|
||||
free (name);
|
||||
}
|
||||
}
|
||||
|
|
@ -6428,6 +6753,7 @@ linux_qxfer_libraries_svr4 (const char *annex, unsigned char *readbuf,
|
|||
|
||||
memcpy (readbuf, document + offset, len);
|
||||
xfree (document);
|
||||
free_mapping_entry_vec (data.list);
|
||||
|
||||
return len;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue