52 lines
1.8 KiB
Diff
52 lines
1.8 KiB
Diff
From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
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From: Bruno Larsen <blarsen@redhat.com>
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Date: Thu, 23 Sep 2021 11:19:09 -0300
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Subject: gdb-rhbz1970741-early-exit-for-empty-debuginfod-url.patch
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;;[gdb] Improve early exits for env var in debuginfod-support.c
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;;(Tom de Vries)
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There's an early exit in libdebuginfod's debuginfod_query_server, which checks
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both for:
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- getenv (DEBUGINFOD_URLS_ENV_VAR) == NULL, and
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- (getenv (DEBUGINFOD_URLS_ENV_VAR))[0] == '\0'.
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In debuginfod_source_query and debuginfod_debuginfo_query (which both
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end up calling debuginfod_query_server) there are also early exits checking
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the same env var, but those just check for NULL.
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Make the early exit tests in debuginfod-support.c match those in
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libdebuginfod.
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gdb/ChangeLog:
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2020-11-18 Tom de Vries <tdevries@suse.de>
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* debuginfod-support.c (debuginfod_source_query)
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(debuginfod_debuginfo_query): Also do early exit if
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"(getenv (DEBUGINFOD_URLS_ENV_VAR))[0] == '\0'".
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diff --git a/gdb/debuginfod-support.c b/gdb/debuginfod-support.c
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--- a/gdb/debuginfod-support.c
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+++ b/gdb/debuginfod-support.c
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@@ -98,7 +98,8 @@ debuginfod_source_query (const unsigned char *build_id,
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const char *srcpath,
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gdb::unique_xmalloc_ptr<char> *destname)
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{
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- if (getenv (DEBUGINFOD_URLS_ENV_VAR) == NULL)
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+ const char *urls_env_var = getenv (DEBUGINFOD_URLS_ENV_VAR);
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+ if (urls_env_var == NULL || urls_env_var[0] == '\0')
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return scoped_fd (-ENOSYS);
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debuginfod_client *c = debuginfod_init ();
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@@ -135,7 +136,8 @@ debuginfod_debuginfo_query (const unsigned char *build_id,
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const char *filename,
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gdb::unique_xmalloc_ptr<char> *destname)
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{
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- if (getenv (DEBUGINFOD_URLS_ENV_VAR) == NULL)
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+ const char *urls_env_var = getenv (DEBUGINFOD_URLS_ENV_VAR);
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+ if (urls_env_var == NULL || urls_env_var[0] == '\0')
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return scoped_fd (-ENOSYS);
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debuginfod_client *c = debuginfod_init ();
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