141 lines
6.4 KiB
Diff
141 lines
6.4 KiB
Diff
From 5792f34efabc3d2c2a5292d3b30a597d5c53374b Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Barnab=C3=A1s=20P=C5=91cze?= <pobrn@protonmail.com>
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Date: Wed, 9 Oct 2024 15:28:14 +0200
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Subject: [PATCH 03/18] libsysprof: elf: do not generate fallback names
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Fallback names are only used in `SysprofElfSymbolizer` at the
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moment, but it also has code to generate fallback symbols.
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---
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src/libsysprof/sysprof-elf-private.h | 3 +--
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src/libsysprof/sysprof-elf-symbolizer.c | 12 ++++++------
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src/libsysprof/sysprof-elf.c | 17 +++++------------
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3 files changed, 12 insertions(+), 20 deletions(-)
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diff --git a/src/libsysprof/sysprof-elf-private.h b/src/libsysprof/sysprof-elf-private.h
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index b4d0f737..146bc2de 100644
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--- a/src/libsysprof/sysprof-elf-private.h
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+++ b/src/libsysprof/sysprof-elf-private.h
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@@ -42,8 +42,7 @@ const char *sysprof_elf_get_debug_link (SysprofElf *self);
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char *sysprof_elf_get_symbol_at_address (SysprofElf *self,
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guint64 address,
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guint64 *begin_address,
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- guint64 *end_address,
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- gboolean *is_fallback);
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+ guint64 *end_address);
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SysprofElf *sysprof_elf_get_debug_link_elf (SysprofElf *self);
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void sysprof_elf_set_debug_link_elf (SysprofElf *self,
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SysprofElf *debug_link_elf);
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diff --git a/src/libsysprof/sysprof-elf-symbolizer.c b/src/libsysprof/sysprof-elf-symbolizer.c
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index 8fdf204f..f7aabef7 100644
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--- a/src/libsysprof/sysprof-elf-symbolizer.c
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+++ b/src/libsysprof/sysprof-elf-symbolizer.c
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@@ -61,9 +61,9 @@ sysprof_elf_symbolizer_symbolize (SysprofSymbolizer *symbolizer,
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g_autoptr(SysprofElf) elf = NULL;
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SysprofDocumentMmap *map;
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g_autofree char *name = NULL;
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+ const char *nick = NULL;
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const char *path;
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const char *build_id;
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- gboolean is_fallback = FALSE;
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guint64 map_begin;
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guint64 map_end;
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guint64 relative_address;
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@@ -115,14 +115,15 @@ sysprof_elf_symbolizer_symbolize (SysprofSymbolizer *symbolizer,
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NULL)))
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goto fallback;
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+ nick = sysprof_elf_get_nick (elf);
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+
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/* Try to get the symbol name at the address and the begin/end address
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* so that it can be inserted into our symbol cache.
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*/
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if (!(name = sysprof_elf_get_symbol_at_address (elf,
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relative_address,
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&begin_address,
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- &end_address,
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- &is_fallback)))
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+ &end_address)))
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goto fallback;
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/* Sanitize address ranges if we have to. Sometimes that can happen
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@@ -135,11 +136,10 @@ sysprof_elf_symbolizer_symbolize (SysprofSymbolizer *symbolizer,
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ret = _sysprof_symbol_new (sysprof_strings_get (strings, name),
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sysprof_strings_get (strings, path),
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- sysprof_strings_get (strings, sysprof_elf_get_nick (elf)),
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+ sysprof_strings_get (strings, nick),
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map_begin + (begin_address - file_offset),
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map_begin + (end_address - file_offset),
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SYSPROF_SYMBOL_KIND_USER);
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- ret->is_fallback = is_fallback;
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return ret;
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@@ -156,7 +156,7 @@ fallback:
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ret = _sysprof_symbol_new (sysprof_strings_get (strings, name),
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sysprof_strings_get (strings, path),
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- NULL,
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+ sysprof_strings_get (strings, nick),
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begin_address, end_address,
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SYSPROF_SYMBOL_KIND_USER);
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ret->is_fallback = TRUE;
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diff --git a/src/libsysprof/sysprof-elf.c b/src/libsysprof/sysprof-elf.c
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index 0534eccb..df73ce6d 100644
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--- a/src/libsysprof/sysprof-elf.c
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+++ b/src/libsysprof/sysprof-elf.c
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@@ -409,8 +409,7 @@ sysprof_elf_get_symbol_at_address_internal (SysprofElf *self,
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guint64 address,
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guint64 *begin_address,
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guint64 *end_address,
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- guint64 text_offset,
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- gboolean *is_fallback)
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+ guint64 text_offset)
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{
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const ElfSym *symbol;
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char *ret = NULL;
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@@ -421,7 +420,7 @@ sysprof_elf_get_symbol_at_address_internal (SysprofElf *self,
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if (self->debug_link_elf != NULL)
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{
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- ret = sysprof_elf_get_symbol_at_address_internal (self->debug_link_elf, filename, address, begin_address, end_address, text_offset, is_fallback);
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+ ret = sysprof_elf_get_symbol_at_address_internal (self->debug_link_elf, filename, address, begin_address, end_address, text_offset);
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if (ret != NULL)
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return ret;
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@@ -447,11 +446,7 @@ sysprof_elf_get_symbol_at_address_internal (SysprofElf *self,
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}
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else
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{
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- begin = address;
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- end = address + 1;
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- ret = g_strdup_printf ("In File %s+0x%"G_GINT64_MODIFIER"x", filename, address);
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- if (is_fallback)
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- *is_fallback = TRUE;
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+ return NULL;
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}
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if (begin_address)
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@@ -467,16 +462,14 @@ char *
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sysprof_elf_get_symbol_at_address (SysprofElf *self,
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guint64 address,
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guint64 *begin_address,
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- guint64 *end_address,
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- gboolean *is_fallback)
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+ guint64 *end_address)
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{
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return sysprof_elf_get_symbol_at_address_internal (self,
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self->file,
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address,
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begin_address,
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end_address,
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- self->text_offset,
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- is_fallback);
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+ self->text_offset);
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}
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/**
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--
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2.45.2
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