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Applied Daniel Jacobowitz's patch for reattaching in the presence of

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remote SVR4 shared libraries.
This commit is contained in:
Kevin Buettner 2001-08-29 19:34:08 +00:00
parent 7e0de7bf18
commit 8ad2fcde8d
2 changed files with 34 additions and 5 deletions
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7
gdb/ChangeLog
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@ -1,3 +1,10 @@
2001-08-29 Kevin Buettner <kevinb@redhat.com>
From 2001-08-07 Daniel Jacobowitz <drow@mvista.com>:
* solib-svr4.c (enable_break): Check the inferior link map
before assuming the inferior PC is at the start of the dynamic
loader.
2001-08-28 Andrew Cagney <cagney@toribio.toronto.redhat.com>
* frame.h (struct frame_info): Fix documentation on fields

32
gdb/solib-svr4.c
View File

@ -1198,7 +1198,9 @@ enable_break (void)
{
unsigned int interp_sect_size;
char *buf;
CORE_ADDR load_addr;
CORE_ADDR load_addr = 0;
int load_addr_found = 0;
struct so_list *inferior_sos;
bfd *tmp_bfd = NULL;
int tmp_fd = -1;
char *tmp_pathname = NULL;
@ -1235,10 +1237,30 @@ enable_break (void)
goto bkpt_at_symbol;
}
/* We find the dynamic linker's base address by examining the
current pc (which point at the entry point for the dynamic
linker) and subtracting the offset of the entry point. */
load_addr = read_pc () - tmp_bfd->start_address;
/* If the entry in _DYNAMIC for the dynamic linker has already
been filled in, we can read its base address from there. */
inferior_sos = svr4_current_sos ();
if (inferior_sos)
{
/* Connected to a running target. Update our shared library table. */
solib_add (NULL, 0, NULL);
}
while (inferior_sos)
{
if (strcmp (buf, inferior_sos->so_original_name) == 0)
{
load_addr_found = 1;
load_addr = LM_ADDR (inferior_sos);
break;
}
inferior_sos = inferior_sos->next;
}
/* Otherwise we find the dynamic linker's base address by examining
the current pc (which should point at the entry point for the
dynamic linker) and subtracting the offset of the entry point. */
if (!load_addr_found)
load_addr = read_pc () - tmp_bfd->start_address;
/* Record the relocated start and end address of the dynamic linker
text and plt section for svr4_in_dynsym_resolve_code. */