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libsysprof-analyze: implement various SysprofElf API

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This wraps our ElfParser to give us an idiomatic API we can use with
GIO/GTK/etc.
This commit is contained in:
Christian Hergert
2023-05-19 14:52:49 -07:00
parent d48f2763e0
commit 7885873ba3
2 changed files with 34 additions and 9 deletions
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2
src/libsysprof-analyze/sysprof-elf-private.h
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@ -34,7 +34,7 @@ SysprofElf *sysprof_elf_new (const char *filename,
const char *sysprof_elf_get_file (SysprofElf *self); const char *sysprof_elf_get_file (SysprofElf *self);
const char *sysprof_elf_get_build_id (SysprofElf *self); const char *sysprof_elf_get_build_id (SysprofElf *self);
const char *sysprof_elf_get_debug_link (SysprofElf *self); const char *sysprof_elf_get_debug_link (SysprofElf *self);
const char *sysprof_elf_get_symbol_at_address (SysprofElf *self, char *sysprof_elf_get_symbol_at_address (SysprofElf *self,
guint64 address, guint64 address,
guint64 *begin_address, guint64 *begin_address,
guint64 *end_address); guint64 *end_address);

41
src/libsysprof-analyze/sysprof-elf.c
View File

@ -28,7 +28,6 @@ struct _SysprofElf
{ {
GObject parent_instance; GObject parent_instance;
char *build_id; char *build_id;
char *debug_link;
char *file; char *file;
SysprofElf *debug_link_elf; SysprofElf *debug_link_elf;
ElfParser *parser; ElfParser *parser;
@ -53,7 +52,6 @@ sysprof_elf_finalize (GObject *object)
SysprofElf *self = (SysprofElf *)object; SysprofElf *self = (SysprofElf *)object;
g_clear_pointer (&self->build_id, g_free); g_clear_pointer (&self->build_id, g_free);
g_clear_pointer (&self->debug_link, g_free);
g_clear_pointer (&self->file, g_free); g_clear_pointer (&self->file, g_free);
g_clear_pointer (&self->parser, elf_parser_free); g_clear_pointer (&self->parser, elf_parser_free);
g_clear_object (&self->debug_link_elf); g_clear_object (&self->debug_link_elf);
@ -187,24 +185,51 @@ sysprof_elf_get_build_id (SysprofElf *self)
const char * const char *
sysprof_elf_get_debug_link (SysprofElf *self) sysprof_elf_get_debug_link (SysprofElf *self)
{ {
guint crc32;
g_return_val_if_fail (SYSPROF_IS_ELF (self), NULL); g_return_val_if_fail (SYSPROF_IS_ELF (self), NULL);
return self->debug_link; return elf_parser_get_debug_link (self->parser, &crc32);
} }
const char * char *
sysprof_elf_get_symbol_at_address (SysprofElf *self, sysprof_elf_get_symbol_at_address (SysprofElf *self,
guint64 address, guint64 address,
guint64 *begin_address, guint64 *begin_address,
guint64 *end_address) guint64 *end_address)
{ {
const ElfSym *symbol;
char *ret = NULL;
gulong begin = 0;
gulong end = 0;
g_return_val_if_fail (SYSPROF_IS_ELF (self), NULL); g_return_val_if_fail (SYSPROF_IS_ELF (self), NULL);
g_return_val_if_fail (begin_address != NULL, NULL);
g_return_val_if_fail (end_address != NULL, NULL);
*begin_address = *end_address = 0; if (self->debug_link_elf != NULL)
return sysprof_elf_get_symbol_at_address (self->debug_link_elf, address, begin_address, end_address);
return NULL; if ((symbol = elf_parser_lookup_symbol (self->parser, address)))
{
const char *name;
if (begin_address || end_address)
elf_parser_get_sym_address_range (self->parser, symbol, &begin, &end);
name = elf_parser_get_sym_name (self->parser, symbol);
if (name != NULL && name[0] == '_' && name[1] == 'Z')
ret = elf_demangle (name);
else
ret = g_strdup (name);
}
if (begin_address)
*begin_address = begin;
if (end_address)
*end_address = end;
return ret;
} }
/** /**