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| author | wu.heng <wu.heng@zte.com.cn> | 2018-12-03 12:32:13 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2018-12-04 16:36:30 +1030 |
| commit | 314a80c41d52737c9cfdc80dc2f6f56e0d5cfd96 (patch) | |
| tree | 7de1c978ce7fe3e89adf21ee837345c97775fd8e | |
| parent | b90514cfb5e1f9dcc2c0b89e22b65dd6c7879564 (diff) | |
| download | gdb-314a80c41d52737c9cfdc80dc2f6f56e0d5cfd96.zip gdb-314a80c41d52737c9cfdc80dc2f6f56e0d5cfd96.tar.gz gdb-314a80c41d52737c9cfdc80dc2f6f56e0d5cfd96.tar.bz2 | |
PR23939, Check frch_cfi_data before use
PR 23939
* dw2gencfi.c (dot_cfi_label): Check frch_cfi_data is non-NULL
before use.
| -rw-r--r-- | gas/ChangeLog | 6 | ||||
| -rw-r--r-- | gas/dw2gencfi.c | 10 |
2 files changed, 15 insertions, 1 deletions
diff --git a/gas/ChangeLog b/gas/ChangeLog index ba4aa15..dbb8a37 100644 --- a/gas/ChangeLog +++ b/gas/ChangeLog @@ -1,3 +1,9 @@ +2018-12-04 wu.heng <wu.heng@zte.com.cn> + + PR 23939 + * dw2gencfi.c (dot_cfi_label): Check frch_cfi_data is non-NULL + before use. + 2018-12-03 Kito Cheng <kito@andestech.com> * config/tc-riscv.c: Include elfxx-riscv.h. diff --git a/gas/dw2gencfi.c b/gas/dw2gencfi.c index 3b61070..4add173 100644 --- a/gas/dw2gencfi.c +++ b/gas/dw2gencfi.c @@ -1198,8 +1198,16 @@ dot_cfi_val_encoded_addr (int ignored ATTRIBUTE_UNUSED) static void dot_cfi_label (int ignored ATTRIBUTE_UNUSED) { - char *name = read_symbol_name (); + char *name; + + if (frchain_now->frch_cfi_data == NULL) + { + as_bad (_("CFI instruction used without previous .cfi_startproc")); + ignore_rest_of_line (); + return; + } + name = read_symbol_name (); if (name == NULL) return; |