bash/bash-5.0-patch-10.patch
Petr Šabata 33fc6cffab RHEL 9.0.0 Alpha bootstrap
The content of this branch was automatically imported from Fedora ELN
with the following as its source:
https://src.fedoraproject.org/rpms/bash#a6e6d286e4a319b6ca72fd4b4457f11f806f25c1
2020-10-14 22:12:16 +02:00

117 lines
4.1 KiB
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From 6a3116f58c876ca58a786f0ddff578ecf126588e Mon Sep 17 00:00:00 2001
From: Chet Ramey <chet.ramey@case.edu>
Date: Thu, 29 Aug 2019 11:20:15 -0400
Subject: [PATCH] Bash-5.0 patch 10: changes to posix-mode assignment
statements preceding functions and special builtins
---
patchlevel.h | 2 +-
tests/varenv.right | 6 +++---
variables.c | 38 ++++++++++++++++++++++++++------------
3 files changed, 30 insertions(+), 16 deletions(-)
diff --git a/patchlevel.h b/patchlevel.h
index 02f1d606..8002af70 100644
--- a/patchlevel.h
+++ b/patchlevel.h
@@ -25,6 +25,6 @@
regexp `^#define[ ]*PATCHLEVEL', since that's what support/mkversion.sh
looks for to find the patch level (for the sccs version string). */
-#define PATCHLEVEL 9
+#define PATCHLEVEL 10
#endif /* _PATCHLEVEL_H_ */
diff --git a/tests/varenv.right b/tests/varenv.right
index 159a8773..ca7d4cf1 100644
--- a/tests/varenv.right
+++ b/tests/varenv.right
@@ -146,9 +146,9 @@ declare -x foo="abc"
inside: declare -x var="value"
outside: declare -- var="one"
inside: declare -x var="value"
-outside: declare -x var="value"
-inside: declare -- var="local"
-outside: declare -x var="global"
+outside: declare -- var="outside"
+inside: declare -x var="global"
+outside: declare -- var="outside"
foo=<unset> environment foo=
foo=foo environment foo=foo
foo=foo environment foo=foo
diff --git a/variables.c b/variables.c
index 610629ab..af3fd04a 100644
--- a/variables.c
+++ b/variables.c
@@ -4460,9 +4460,9 @@ char **tempvar_list;
int tvlist_ind;
/* Take a variable from an assignment statement preceding a posix special
- builtin (including `return') and create a global variable from it. This
- is called from merge_temporary_env, which is only called when in posix
- mode. */
+ builtin (including `return') and create a variable from it as if a
+ standalone assignment statement had been performed. This is called from
+ merge_temporary_env, which is only called when in posix mode. */
static void
push_posix_temp_var (data)
PTR_T data;
@@ -4472,16 +4472,27 @@ push_posix_temp_var (data)
var = (SHELL_VAR *)data;
- binding_table = global_variables->table;
- if (binding_table == 0)
- binding_table = global_variables->table = hash_create (VARIABLES_HASH_BUCKETS);
+ /* Just like do_assignment_internal(). This makes assignments preceding
+ special builtins act like standalone assignment statements when in
+ posix mode, satisfying the posix requirement that this affect the
+ "current execution environment." */
+ v = bind_variable (var->name, value_cell (var), ASS_FORCE|ASS_NOLONGJMP);
- v = bind_variable_internal (var->name, value_cell (var), binding_table, 0, ASS_FORCE|ASS_NOLONGJMP);
+ /* If this modifies an existing local variable, v->context will be non-zero.
+ If it comes back with v->context == 0, we bound at the global context.
+ Set binding_table appropriately. It doesn't matter whether it's correct
+ if the variable is local, only that it's not global_variables->table */
+ binding_table = v->context ? shell_variables->table : global_variables->table;
/* global variables are no longer temporary and don't need propagating. */
- var->attributes &= ~(att_tempvar|att_propagate);
+ if (binding_table == global_variables->table)
+ var->attributes &= ~(att_tempvar|att_propagate);
+
if (v)
- v->attributes |= var->attributes;
+ {
+ v->attributes |= var->attributes;
+ v->attributes &= ~att_tempvar; /* not a temp var now */
+ }
if (find_special_var (var->name) >= 0)
tempvar_list[tvlist_ind++] = savestring (var->name);
@@ -4575,14 +4586,17 @@ dispose_temporary_env (pushf)
sh_free_func_t *pushf;
{
int i;
+ HASH_TABLE *disposer;
tempvar_list = strvec_create (HASH_ENTRIES (temporary_env) + 1);
tempvar_list[tvlist_ind = 0] = 0;
-
- hash_flush (temporary_env, pushf);
- hash_dispose (temporary_env);
+
+ disposer = temporary_env;
temporary_env = (HASH_TABLE *)NULL;
+ hash_flush (disposer, pushf);
+ hash_dispose (disposer);
+
tempvar_list[tvlist_ind] = 0;
array_needs_making = 1;
--
2.21.0