From 6a048695b3493bf9d6bb6237f6601f551d6750ed Mon Sep 17 00:00:00 2001 From: Joel Brobecker Date: Wed, 27 Feb 2008 20:27:49 +0000 Subject: [PATCH] * breakpoint.c (skip_prologue_sal): New function. (resolve_sal_pc): Adjust SAL past prologue if the SAL was computed from a line number. --- gdb/ChangeLog | 6 ++++++ gdb/breakpoint.c | 24 ++++++++++++++++++++++++ 2 files changed, 30 insertions(+) diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 96dd838409d..aae24615a06 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,9 @@ +2008-02-27 Joel Brobecker + + * breakpoint.c (skip_prologue_sal): New function. + (resolve_sal_pc): Adjust SAL past prologue if the SAL was + computed from a line number. + 2008-02-27 Joel Brobecker * features/rs6000/power-core.xml, features/rs6000/power64-core.xml diff --git a/gdb/breakpoint.c b/gdb/breakpoint.c index 019f4c8ac3e..a689e3ae44f 100644 --- a/gdb/breakpoint.c +++ b/gdb/breakpoint.c @@ -5482,6 +5482,25 @@ set_breakpoint (char *address, char *condition, 0); } +/* Adjust SAL to the first instruction past the function prologue. + The end of the prologue is determined using the line table from + the debugging information. + + If SAL is already past the prologue, then do nothing. */ + +static void +skip_prologue_sal (struct symtab_and_line *sal) +{ + struct symbol *sym = find_pc_function (sal->pc); + struct symtab_and_line start_sal; + + if (sym == NULL) + return; + + start_sal = find_function_start_sal (sym, 1); + if (sal->pc < start_sal.pc) + *sal = start_sal; +} /* Helper function for break_command_1 and disassemble_command. */ @@ -5496,6 +5515,11 @@ resolve_sal_pc (struct symtab_and_line *sal) error (_("No line %d in file \"%s\"."), sal->line, sal->symtab->filename); sal->pc = pc; + + /* If this SAL corresponds to a breakpoint inserted using + a line number, then skip the function prologue if necessary. */ + if (sal->explicit_line) + skip_prologue_sal (sal); } if (sal->section == 0 && sal->symtab != NULL) -- 2.30.2